diff --git a/.gitignore b/.gitignore index f313165..5ed4678 100644 --- a/.gitignore +++ b/.gitignore @@ -1,2 +1,3 @@ *.pyc dbconnector.egg-info/ +example_db_options.secret diff --git a/README.md b/README.md index 80e4b37..52d5f34 100644 --- a/README.md +++ b/README.md @@ -1,33 +1,66 @@ -# MySQL-DBConnector # +# MySQL-DBConnector A wrapper for the MySQL Python connector that provides additional resilience and functionality. -## What is this repository for? ## +**Latest version: 1.3.1** + +## About this repository * A wrapper for the MySQL Python connector that provides additional resilience and functionality. * Implements connection pooling that's more reliable. -* Version 1.2.1 -* Works with Python 2.7+ or 3.5+ +* Developed and tested with Python 3.9, should work with 3.5+ -## How do I get set up? ## +## How do I get set up? * Make sure you have Git installed - [Download Git](https://git-scm.com/downloads) * Run `pip install git+https://github.com/SheffieldSolar/MySQL-DBConnector/` -## Getting started ## -I recommend using a MySQL options file to pass the connection parameters rather than hard-coding the DB credentials: +## Usage +Start by creating an instance of the `DBConnector` class, ideally using a context manager as this will ensure all connections are closed if an error is encountered or the code is interrupted: + +```Python +from dbconnector import DBConnector +``` + +The `DBConnector` class requires at least one argument: `connector_args`. This should be a dictionary of connection arguments, the full list of which can be found [here](https://dev.mysql.com/doc/connector-python/en/connector-python-connectargs.html). Most of these are optional, but you'll need to specify at least: + +```Python +connector_args = { + "user": "", + "password": "", + "database": "", +} +``` + +Some of the connector args have default values which override the defaults in the mysql-connector-python library, they are: + +- `time_zone`: "UTC" +- `connection_timeout`: 60 +- `buffered`: True +- `get_warnings`: True +- `raise_on_warnings`: False +- `use_pure`: True + +You can override these yourself if you prefer. + +Loading your password into your Python code is usually insecure, so I recommend using a MySQL options file to pass the connection parameters rather than hard-coding the DB credentials: ```Python from dbconnector import DBConnector mysql_options_file = "mysql_options.txt" -# Use the context manager to ensure DB connections are always safely closed -# Always specify the session_tz to avoid issues with MySQL's timezone-naive datetimes or unwanted TZ conversions of timestamp fields! -with DBConnector(mysql_options_file, session_tz="UTC") as dbc: +# HINT: Use the context manager to ensure DB connections are always safely closed + +with DBConnector(connector_args={"option_files": mysql_options_file}) as dbc: # Selecting from the database (returns a list of tuples): # See https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlcursor-fetchall.html + # Note that using `select * from` is not recommended since the returned columns or their order + # might change. data = dbc.query("SELECT * FROM test;") + # Select from the database and convert to a Pandas DataFrame: + data = dbc.query("SELECT col2, col2 FROM test;", df=True) + # Inserting one row into the database: dbc.iud_query("insert into test (col1, col2, col3) values ('val1', 'val2', 'val3');") @@ -39,7 +72,9 @@ with DBConnector(mysql_options_file, session_tz="UTC") as dbc: args = (1, 2, 3) result = dbc.proc("myProcedure", args) ``` + The file _'mysql_options.txt'_ should look something like this: + ``` [client] host = @@ -49,32 +84,50 @@ database = ``` It is also possible to pass connection parameters directly to the DBConnector class. This is not recommended but can be useful for testing/debugging: + ```Python from dbconnector import DBConnector -db_config={"host": "", "user": "", - "password": "", "database": ""} - -with DBConnector(db_config=db_config, session_tz="UTC") as dbc: +# HINT: Always specify the time_zone arg to avoid issues with MySQL's timezone-naive datetimes or +# unwanted TZ conversions of timestamp fields! +connector_args = { + "host": "", + "user": "", + "password": "", + "database": "", + "time_zone": "UTC" +} + +with DBConnector(connector_args=connector_args) as dbc: # Do some DB stuff ``` -## Documentation ## +The `dbconnector` module uses the Python `logging` module to log useful debugging messages, warnings and errors. You can set your preferred logging level using something like: + +```Python +import os +import logging + +fmt = "%(asctime)s %(module)s %(levelname)s %(message)s" +logging.basicConfig(format=fmt, level=os.environ.get("LOGLEVEL", "DEBUG")) +``` + +## Documentation -* [https://sheffieldsolar.github.io/MySQL-DBConnector/](https://sheffieldsolar.github.io/MySQL-DBConnector/) +- [https://sheffieldsolar.github.io/MySQL-DBConnector/](https://sheffieldsolar.github.io/MySQL-DBConnector/) -## How do I update? ## +## How do I update? -* Run `pip install --upgrade git+https://github.com/SheffieldSolar/MySQL-DBConnector/` +- Run `pip install --upgrade git+https://github.com/SheffieldSolar/MySQL-DBConnector/` -## Who do I talk to? ## +## Who do I talk to? -* Jamie Taylor - [jamie.taylor@sheffield.ac.uk](mailto:jamie.taylor@sheffield.ac.uk "Email Jamie") - [SheffieldSolar](https://github.com/SheffieldSolar) +- [Jamie Taylor](https://github.com/JamieTaylor-TUOS) - [jamie.taylor@sheffield.ac.uk](mailto:jamie.taylor@sheffield.ac.uk "Email Jamie") - [SheffieldSolar](https://github.com/SheffieldSolar) -## Authors ## +## Authors -* **Jamie Taylor** - *Initial work* - [SheffieldSolar](https://github.com/SheffieldSolar) +- [Jamie Taylor](https://github.com/JamieTaylor-TUOS) - [SheffieldSolar](https://github.com/SheffieldSolar) -## License ## +## License This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details diff --git a/dbconnector/dbconnector.py b/dbconnector/dbconnector.py index 26de8b1..f4a745d 100644 --- a/dbconnector/dbconnector.py +++ b/dbconnector/dbconnector.py @@ -12,70 +12,52 @@ import os import sys import inspect +from logging import info, debug, warning, error, critical, exception +import re +from typing import Optional + +from pandas import DataFrame import mysql.connector from mysql.connector import errorcode, connection -class GenericErrorLogger: - """Basic error logging to a file (optional).""" - def __init__(self, filename): - self.logfile = filename - - def write_to_log(self, msg): - """Log the error message to the logfile along with a datestamp and the name of the script - (in case of shared logfiles). - - Parameters - ---------- - `msg` : string - Message to be recorded in *self.logfile*. - """ - timestamp = datetime.now().strftime('%Y-%m-%dT%H:%M:%S') - scriptname = os.path.basename(__file__) - fid = open(self.logfile, 'a') - fid.write(timestamp + " " + scriptname + ": " + str(msg) + "\n") - fid.close() - return - class DBConnectorException(Exception): """An Exception specific to the DBConnector class.""" - def __init__(self, logfile, msg): + def __init__(self, msg): try: caller_file = inspect.stack()[2][1] + except KeyboardInterrupt: + raise KeyboardInterrupt except: caller_file = os.path.basename(__file__) - self.msg = "%s (in '%s')" % (msg, caller_file) - if logfile: - logger = GenericErrorLogger(logfile) - logger.write_to_log(self.msg) + error(msg) + self.msg = f"{msg} (in '{caller_file}')" + def __str__(self): return self.msg class DBConnectorLog: """Record, read and analyse DBConnector stats.""" - def __init__(self, logfile, db_config): + def __init__(self, logfile, conn_args): self.logfile = logfile self.status = {0: "success", 1: "error", 2: "warning"} - if "database" in db_config: - self.host = "{}.{}.{}".format(db_config["host"], db_config["user"], - db_config["database"]) + if "option_files" in conn_args: + _, self.host = os.path.split(conn_args["option_files"]) else: - _, self.host = os.path.split(db_config["option_files"]) + self.host = f"{conn_args['host']}.{conn_args['user']}.{conn_args['database']}" - def log_query(self, sql, start, time_taken, status=0, error=None): + def log_query(self, sql, start, time_taken, status=0, err=None): """Append query details to the log file.""" if self.logfile is None: return status = self.status[status] with open(self.logfile, "ab") as log: - log.write("{}|{}|{}|{}|{}|{}|{}\n".format(datetime.utcnow(), self.host, start, sql, - status, error, time_taken)) + log.write(f"{datetime.utcnow()}|{self.host}|{start}|{sql}|{status}|{err}|" + f"{time_taken}\n") class DBConnectionPool: """Handle connections to the DB manually rather than relying on MySQL connection pooling.""" - def __init__(self, pool_size, logfile, **kwargs): - self.conn_args = kwargs - self.logfile = logfile - self.raise_on_warnings = kwargs.get('raise_on_warnings', False) + def __init__(self, connector_args: dict, pool_size: int): + self.conn_args = connector_args self.connection_pool = [] self.connections = 0 self.max_pool = pool_size @@ -84,7 +66,7 @@ def _new_connection(self): """Create a new connection using *self.conn_args*.""" return mysql.connector.connect(**self.conn_args) - def get_connection(self): + def _get_connection(self): """ Take a connection out of the pool. If the pool is exhausted, either create a new connection or raise a "Connection pool exhausted" exception if the maximum pool size has been reached. @@ -98,54 +80,49 @@ def get_connection(self): cnx = self._new_connection() self.connections += 1 else: - raise DBConnectorException(logfile=self.logfile, msg="Connection pool exhausted.") + raise DBConnectorException(msg="Connection pool exhausted.") return cnx - def return_connection(self, cnx): + def _return_connection(self, cnx): """ Return a connection to the pool. Incoming connections are tested and if they are no longer - usable will be disgarded using *DBConnectionPool.close_connection*, which frees up the slot. + usable will be disgarded using *DBConnectionPool._close_connection*, which frees up the + slot. """ - if isinstance(cnx, connection.MySQLConnection): - if cnx.is_connected(): - self.connection_pool.append(cnx) - else: - self.close_connection(cnx) + if isinstance(cnx, connection.MySQLConnection) and cnx.is_connected(): + self.connection_pool.append(cnx) else: - self.warning("Tried to return an object that is not connection.MySQLConnection object " - "to the pool...") + self._close_connection(cnx) return - def close_connection(self, cnx): + def _close_connection(self, cnx): """Permanently close a connection and free up a slot in *self.connections*.""" if isinstance(cnx, connection.MySQLConnection): try: cnx.close() + except KeyboardInterrupt: + raise KeyboardInterrupt except: self.warning("Failed to close connection...") - else: - self.warning("Tried to close a non-connection.MySQLConnection object...") self.connections -= 1 return def close_all(self): """Close all connections when done with them for maximum DB efficiency.""" for cnx in self.connection_pool: - self.close_connection(cnx) + self._close_connection(cnx) if self.connections != 0: - self.warning("Failed to account for all connections in DBConnectionPool.close_all()...") + self.warning("Failed to account for all connections in DBConnectionPool.close_all()") return - def warning(self, msg): + def warning(self, msg: str): """ - Print a nicely formatted warning or raise as an error if *self.raise_on_warnings* is set to - True. + Log a warning or raise as an error if *self.conn_args["raise_on_warnings"]* is set to True. """ - msg = "WARNING! %s" % msg - if self.raise_on_warnings: - raise DBConnectorException(logfile=self.logfile, msg=msg) + if self.conn_args["raise_on_warnings"]: + raise DBConnectorException(msg=msg) else: - print(msg) + warning(msg) return class DBConnector: @@ -154,61 +131,54 @@ class DBConnector: Parameters ---------- - `mysql_defaults` : string - Absolute path to the mysql options file, which must contain 'host', 'user', 'password' and - 'database' client options. - `logfile` : string - Absolute path to the file into which errors should be logged. - `db_config` : dict - Config for the DB connection if no mysql option file is passed. Must contain keys for - 'user', 'password', 'database' and 'host'. - `session_tz` : string - Optionally set the session timezone (useful if working with timestamps). Use any of the time - zone names listed `here `_. - Defaults to "UTC". - `use_pure` : boolean - Whether to use the pure Python implementation of MySQL connector (True) or use the C - extentsion (False). Default is True i.e. pure Python. N.B. C extension is much quicker when - returning large datasets - see `Connector/Python C Extension Docs - `_. - `query_log` : string + connector_args : dict + A dictionary of connect args to pass to `mysql.connector.connect()`. The full list of args + can be found `here `_. + Some args are set to default values which override those of the `mysql-connector-python` + lib. These are: + + - `time_zone`: "UTC" + - `connection_timeout`: 60 + - `buffered`: True + - `get_warnings`: True + - `raise_on_warnings`: False + - `use_pure`: True + query_log : string, optional Optionally specify a log file where query stats will be logged. + pool_size : int, optional + Optionally specify the maximum pool size (i.e. number of connections open at any time). + Default is 1. + cnx_retries : int, optional + Optionally specify the maximum number of times to retry failed connections/queries. + Default is 10. + sleep_interval : int, optional + Optionally specify time (in seconds) to sleep inbetween failed connections/queries which are + retried. This code uses an exponentil back-off, so the sleep time will double after each + failed connection / query - this arg determines the initial sleep time. Default is 1. + Notes ----- - You must either pass the mysql defaults file (which must contain all of the required - parameters) or pass the db_config dict with keys: 'host', 'user', 'password', 'database'. - Warnings - -------- - Logging is currently not available. + Some `connector_args` have no defaults and are always required: 'user', 'password', 'database'. """ - def __init__(self, mysql_defaults=None, logfile=None, db_config=None, session_tz="UTC", - use_pure=True, query_log=None): - default_timeout = 60 - pool_size = 1 - if mysql_defaults: - self.db_config = { - "option_files": mysql_defaults, - "connection_timeout": default_timeout, - "buffered": True, - "get_warnings": True, - "raise_on_warnings": False, - "use_pure": use_pure, - } - else: - self.db_config = { - "user": db_config["user"], - "password": db_config["password"], - "database": db_config["database"], - "host": db_config["host"], - "connection_timeout": default_timeout, - "buffered": True, - "get_warnings": True, - "raise_on_warnings": False, - "use_pure": use_pure, - } - self.pool = DBConnectionPool(pool_size, logfile, **self.db_config) - self.logfile = logfile - self.excusable_errors = ( + def __init__( + self, + connector_args: dict, + query_log: Optional[str] = None, + pool_size: int = 1, + cnx_retries: int = 10, + sleep_interval: int = 1 + ) -> None: + self.connector_args = { + "time_zone": "UTC", + "connection_timeout": 60, + "buffered": True, + "get_warnings": True, + "raise_on_warnings": False, + "use_pure": True, + } + self.connector_args.update(connector_args) + self.pool = DBConnectionPool(self.connector_args, pool_size) + self.retry_errors = ( #Can't connect to MySQL server on... errorcode.CR_CONN_HOST_ERROR, errorcode.CR_IPSOCK_ERROR, @@ -224,16 +194,44 @@ def __init__(self, mysql_defaults=None, logfile=None, db_config=None, session_tz #Lock wait timeout exceeded (maybe extend timeout?) errorcode.ER_LOCK_WAIT_TIMEOUT, ) - self.sleep_interval = 1 - self.cnx_retries = 10 - self.session_tz = session_tz - self.query_log = DBConnectorLog(query_log, self.db_config) + debug(f"config: {self._redacted_connector_args()}") + self.sleep_interval = sleep_interval + self.cnx_retries = cnx_retries + self.query_log = DBConnectorLog(query_log, self.connector_args) def __enter__(self): + """Enter the context manager. Test the connection and log a debug message.""" + self._test_query() return self def __exit__(self, *args): - self.close_connections() + self._close_connections() + + def _test_query(self): + """ + Create a new connection and submit a test query to see if the connection has been + successful. Used to ensure any failure to connection errors occur at the point of creating + the DBConnector instance rather than waiting until the first query is made. + """ + cnx_retries = self.cnx_retries + self.cnx_retries = 3 + connection_timeout = self.connector_args["connection_timeout"] + self.pool.conn_args["connection_timeout"] = 5 + debug("submitting test query") + try: + self.query("SELECT 1;") + except KeyboardInterrupt: + raise KeyboardInterrupt + except: + debug("test query failed") + raise + debug("test query successful") + self.cnx_retries = cnx_retries + self.pool.conn_args["connection_timeout"] = connection_timeout + return + + def _redacted_connector_args(self): + return {k: v if k!="password" else "REDACTED" for k, v in self.connector_args.items()} def _connect(self): """ @@ -259,44 +257,48 @@ def _connect(self): """ cnx = None try: - cnx = self.pool.get_connection() - if self.session_tz is not None: - cnx.time_zone = self.session_tz + cnx = self.pool._get_connection() except mysql.connector.Error as err: if err.errno == errorcode.ER_ACCESS_DENIED_ERROR: - raise DBConnectorException(self.logfile, "Something is wrong with the mysql " - "username or password.") + raise DBConnectorException("Something is wrong with the mysql username or " + "password.") elif err.errno == errorcode.ER_BAD_DB_ERROR: - raise DBConnectorException(self.logfile, "The database does not exist.") - elif err.errno in self.excusable_errors: - print("MySQL Error... %s" % str(err)) - self.pool.return_connection(cnx) + raise DBConnectorException("The database does not exist.") + elif err.errno in self.retry_errors: + warning(f"MySQL Connector Error: {err}") + self.pool._return_connection(cnx) + return None else: raise + except KeyboardInterrupt: + raise KeyboardInterrupt except: raise return cnx - def _safe_connect(self): - """Get a connection to the database with added resilience.""" + def _connect_retry(self, cnx_retries=1): + """Get a connection to the database with optional retries.""" retries = 0 test = False - while not test and retries <= self.cnx_retries: + sleep_interval = self.sleep_interval + while not test: cnx = self._connect() retries += 1 - try: - test = cnx.is_connected() - except: - print("_connect() FAILED!! Retrying in %d seconds" % self.sleep_interval) - self.pool.return_connection(cnx) + if cnx is None: test = False - TIME.sleep(self.sleep_interval) - self.sleep_interval *= 2 - if retries > self.cnx_retries: - err = sys.exc_info()[0] - raise DBConnectorException(self.logfile, "Failed to connect to the DB after %d " - "retries. Latest error: %s" % (self.cnx_retries, str(err))) - self.sleep_interval = 1 + else: + test = cnx.is_connected() + if not test: + if retries < cnx_retries: + warning(f"Connection failed - retrying in {self.sleep_interval} seconds") + self.pool._return_connection(cnx) + test = False + TIME.sleep(sleep_interval) + sleep_interval *= 2 + else: + #import pdb; pdb.set_trace() + raise DBConnectorException(f"Failed to connect to the DB after {cnx_retries} " + f"retries.") return cnx def _safe_query(self, query_type, **kwargs): @@ -308,6 +310,7 @@ def _safe_query(self, query_type, **kwargs): `query_type` : DBConnector class method One of *DBConnector._select_query*, *DBConnector._proc_query*, *DBConnector._iud_query*. + Returns ------- list of lists @@ -316,79 +319,45 @@ def _safe_query(self, query_type, **kwargs): Notes ----- Any additional arguments required by the query methods must be supplied as *kwargs*. - This method retries failed queries due to *excusable errors* an indefinitely with - exponential back-off. Queries that fail due to failure to retrieve a connection also retry + This method retries failed queries due to *retry_errors* with exponential back-off. + Queries that fail due to failure to retrieve a connection also retry with exponential back-off, but only up to *self.cnx_retries* times. """ success = False + sleep_interval = self.sleep_interval while not success: - cnx = self._safe_connect() + cnx = self._connect_retry(cnx_retries=self.cnx_retries) start = datetime.utcnow() try: result = query_type(cnx, **kwargs) success = True if self.query_log is not None: time_taken = (datetime.utcnow() - start).total_seconds() - sql = kwargs.get('sqlquery', None) + sql = kwargs.get("sqlquery", None) self.query_log.log_query(sql, start, time_taken) except mysql.connector.Error as err: - if err.errno in self.excusable_errors: + if err.errno in self.retry_errors: if self.query_log is not None: time_taken = (datetime.utcnow() - start).total_seconds() - sql = kwargs.get('sqlquery', None) + sql = kwargs.get("sqlquery", None) self.query_log.log_query(sql, start, time_taken, 1, err) - self.pool.return_connection(cnx) - print("MySQL Error... %s" % str(err)) - TIME.sleep(self.sleep_interval) - self.sleep_interval *= 2 + self.pool._return_connection(cnx) + warning(f"MySQL Error: {err}") + TIME.sleep(sleep_interval) + sleep_interval *= 2 else: - self.pool.return_connection(cnx) + self.pool._return_connection(cnx) raise + except KeyboardInterrupt: + raise KeyboardInterrupt except: - self.pool.return_connection(cnx) + self.pool._return_connection(cnx) err = sys.exc_info()[0] - raise DBConnectorException(self.logfile, "Encountered an error during mysql query " - "(%s)." % str(err)) - self.pool.return_connection(cnx) - self.sleep_interval = 1 + raise DBConnectorException(f"Encountered an error during MySQL query ({err}).") + self.pool._return_connection(cnx) return result - def query(self, sqlquery, df=False): - """ - Query the database using select (with resilience). - - Parameters - ---------- - `sqlquery` : string - SQL `select` statement to be executed. - `df` : boolean - Set to True to return query results as Pandas DataFrame. Column names will be extracted - from the *sqlquery* and converted to lowercase (do not use "select * from"). - Returns - ------- - list - List of tuples, [(R1C1, R1C2, ...), (R2C1, R2C2, ...), ...]. - Length of list corresponds to N rows returned, length of tuples corresponds to columns - selected. - See Also - -------- - MySQL Connector Python Docs: https://dev.mysql.com/doc/connector-python/en/index.html. - Notes - ----- - MySQL Connector Python is prone to dropped connections - this wrapper adds resilience by - retrying. - """ - return self._safe_query(self._select_query, sqlquery=sqlquery, df=df) - - def proc(self, proc, args): - """Execute a MySQL procedure with resilience.""" - return self._safe_query(self._proc_query, proc=proc, args=args) - - def iud_query(self, sqlquery, data=None, size=1000): - """Execute an insert/update/delete SQL statement with resilience.""" - return self._safe_query(self._iud_query, sqlquery=sqlquery, data=data, size=size) - - def close_connections(self): + def _close_connections(self): """Close all connections when done for optimal DB efficiency.""" self.pool.close_all() @@ -402,6 +371,8 @@ def _safe_close(cnx): cnx.close() except (AttributeError, mysql.connector.errors.OperationalError): pass + except KeyboardInterrupt: + raise KeyboardInterrupt except: raise return @@ -409,15 +380,15 @@ def _safe_close(cnx): @staticmethod def _select_query(cnx, **kwargs): """Execute a select query.""" - sqlquery = kwargs.get('sqlquery', None) - df = kwargs.get('df', False) + sqlquery = kwargs.get("sqlquery", None) + debug(f"select query: {sqlquery}") + df = kwargs.get("df", False) cursor = cnx.cursor() cursor.execute(sqlquery) result = cursor.fetchall() cursor.close() if df: - from pandas import DataFrame - import re + debug("converting query result to dataframe") col_regex = "(?<=^select)[a-zA-Z0-9_\s*(),`]+(?=from)" cols = [c.strip().split(" as ")[-1].strip().strip("`") for c in re.findall(col_regex, sqlquery.lower())[0].strip().split(",")] @@ -427,11 +398,12 @@ def _select_query(cnx, **kwargs): @staticmethod def _proc_query(cnx, **kwargs): """Execute a MySQL procedure.""" - proc = kwargs.get('proc', None) - args = kwargs.get('args', None) + proc = kwargs.get("proc", None) + proc_args = kwargs.get("proc_args", None) + debug(f"procedure call: call {proc}({', '.join(map(str, proc_args))})") cursor = cnx.cursor() result = [] - cursor.callproc(proc, args) + cursor.callproc(proc, proc_args) for res in cursor.stored_results(): result.append(res.fetchall()) cursor.close() @@ -440,16 +412,84 @@ def _proc_query(cnx, **kwargs): @staticmethod def _iud_query(cnx, **kwargs): """Execute an insert/update/delete SQL statement.""" - size = kwargs.get('size', 1000) - data = kwargs.get('data', None) - sqlquery = kwargs.get('sqlquery', None) + chunk_size = kwargs.get("chunk_size", 1000) + data = kwargs.get("data", None) + sqlquery = kwargs.get("sqlquery", None) + debug(f"insert/update/delete query: {sqlquery}") cursor = cnx.cursor() if data is None: cursor.execute(sqlquery) else: - for i in range(0, len(data), size): - cursor.executemany(sqlquery, data[i:(i+size)]) + for i in range(0, len(data), chunk_size): + cursor.executemany(sqlquery, data[i:(i+chunk_size)]) cnx.commit() affected = cursor.rowcount cursor.close() return affected + + def query(self, sqlquery: str, df: bool = False): + """ + Query the database using a select statement. + + Parameters + ---------- + sqlquery : string + SQL statement to be executed. + df : boolean, optional + Set to True to return query results as Pandas DataFrame. Column names will be extracted + from the *sqlquery* and converted to lowercase (do not use "select * from"). + + Returns + ------- + list *OR* Pandas DataFrame + If `df=False`, returns a list of tuples, [(R1C1, R1C2, ...), (R2C1, R2C2, ...), ...]. + Length of list corresponds to N rows returned, length of tuples corresponds to columns + selected. + + If `df=True`, returns a Pandas DataFrame containing the columns from the `sqlquery` and + any rows returned. + """ + return self._safe_query(self._select_query, sqlquery=sqlquery, df=df) + + def proc(self, proc: str, proc_args: list): + """ + Execute a MySQL procedure. + + Parameters + ---------- + proc : string + The name of the MySQL procedure. + proc_args : list + A list of arguments to pass to the procedure. + + Returns + ------- + list + A list of stored results, see `here `_. + """ + return self._safe_query(self._proc_query, proc=proc, proc_args=proc_args) + + def iud_query(self, sqlquery: str, data: Optional[list[list]] = None, chunk_size: int = 1000): + """ + Execute an insert/update/delete SQL statement. + + Parameters + ---------- + sqlquery : string + SQL statement to be executed. Optionally use '%s' placeholders for values in conjunction + with the `data` arg. + data : list of lists, optional + A list of lists containing any values that should be used to populate '%s' placeholders + in the VALUES section of `sqlquery`. + chunk_size : int, optional + Optionally break the insert up into chunks of this size when using `data` to pass + values. This can be useful if inserts to the DB are slow as shorter lived SQL queries + are generally preferred. + + Returns + ------- + int + The number of rows affected. + """ + return self._safe_query(self._iud_query, sqlquery=sqlquery, data=data, + chunk_size=chunk_size) diff --git a/docs/build/.buildinfo b/docs/build/.buildinfo new file mode 100644 index 0000000..5afa4bf --- /dev/null +++ b/docs/build/.buildinfo @@ -0,0 +1,4 @@ +# Sphinx build info version 1 +# This file hashes the configuration used when building these files. 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Source code for dbconnector.dbconnector

+"""
+A wrapper for the MySQL Python connector that provides additional resilience and
+functionality.
+
+- Jamie Taylor <jamie.taylor@sheffield.ac.uk>
+- First Authored: 2015-01-16
+
+"""
+
+from datetime import datetime
+import time as TIME
+import os
+import sys
+import inspect
+from logging import info, debug, warning, error, critical, exception
+import re
+from typing import Optional
+
+from pandas import DataFrame
+import mysql.connector
+from mysql.connector import errorcode, connection
+
+class DBConnectorException(Exception):
+    """An Exception specific to the DBConnector class."""
+    def __init__(self, msg):
+        try:
+            caller_file = inspect.stack()[2][1]
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
+        except:
+            caller_file = os.path.basename(__file__)
+        error(msg)
+        self.msg = f"{msg} (in '{caller_file}')"
+
+    def __str__(self):
+        return self.msg
+
+class DBConnectorLog:
+    """Record, read and analyse DBConnector stats."""
+    def __init__(self, logfile, conn_args):
+        self.logfile = logfile
+        self.status = {0: "success", 1: "error", 2: "warning"}
+        if "option_files" in conn_args:
+            _, self.host = os.path.split(conn_args["option_files"])
+        else:
+            self.host = f"{conn_args['host']}.{conn_args['user']}.{conn_args['database']}"
+
+    def log_query(self, sql, start, time_taken, status=0, err=None):
+        """Append query details to the log file."""
+        if self.logfile is None:
+            return
+        status = self.status[status]
+        with open(self.logfile, "ab") as log:
+            log.write(f"{datetime.utcnow()}|{self.host}|{start}|{sql}|{status}|{err}|"
+                      f"{time_taken}\n")
+
+class DBConnectionPool:
+    """Handle connections to the DB manually rather than relying on MySQL connection pooling."""
+    def __init__(self, connector_args: dict, pool_size: int):
+        self.conn_args = connector_args
+        self.connection_pool = []
+        self.connections = 0
+        self.max_pool = pool_size
+
+    def _new_connection(self):
+        """Create a new connection using *self.conn_args*."""
+        return mysql.connector.connect(**self.conn_args)
+
+    def _get_connection(self):
+        """
+        Take a connection out of the pool. If the pool is exhausted, either create a new connection
+        or raise a "Connection pool exhausted" exception if the maximum pool size has been reached.
+        This prevents creation of too many open connections.
+        """
+        if len(self.connection_pool) > 0:
+            cnx = self.connection_pool[0]
+            self.connection_pool.pop(0)
+        else:
+            if self.connections < self.max_pool:
+                cnx = self._new_connection()
+                self.connections += 1
+            else:
+                raise DBConnectorException(msg="Connection pool exhausted.")
+        return cnx
+
+    def _return_connection(self, cnx):
+        """
+        Return a connection to the pool. Incoming connections are tested and if they are no longer
+        usable will be disgarded using *DBConnectionPool._close_connection*, which frees up the slot.
+        """
+        if isinstance(cnx, connection.MySQLConnection) and cnx.is_connected():
+            self.connection_pool.append(cnx)
+        else:
+            self._close_connection(cnx)
+        return
+
+    def _close_connection(self, cnx):
+        """Permanently close a connection and free up a slot in *self.connections*."""
+        if isinstance(cnx, connection.MySQLConnection):
+            try:
+                cnx.close()
+            except KeyboardInterrupt:
+                raise KeyboardInterrupt
+            except:
+                self.warning("Failed to close connection...")
+        self.connections -= 1
+        return
+
+    def close_all(self):
+        """Close all connections when done with them for maximum DB efficiency."""
+        for cnx in self.connection_pool:
+            self._close_connection(cnx)
+        if self.connections != 0:
+            self.warning("Failed to account for all connections in DBConnectionPool.close_all()")
+        return
+
+    def warning(self, msg: str):
+        """
+        Log a warning or raise as an error if *self.conn_args["raise_on_warnings"]* is set to True.
+        """
+        if self.conn_args["raise_on_warnings"]:
+            raise DBConnectorException(msg=msg)
+        else:
+            warning(msg)
+        return
+
+
[docs]class DBConnector:
+    """
+    A wrapper for the MySQL Python connector that provides additional resilience and functionality.
+
+    Parameters
+    ----------
+    `mysql_defaults` : string
+        Absolute path to the mysql options file, which must contain 'host', 'user', 'password' and
+        'database' client options.
+    `db_config` : dict
+        Config for the DB connection if no mysql option file is passed. Must contain keys for
+        'user', 'password', 'database' and 'host'.
+    `session_tz` : string
+        Optionally set the session timezone (useful if working with timestamps). Use any of the time
+        zone names listed `here <https://en.wikipedia.org/wiki/List_of_tz_database_time_zones>`_.
+        Defaults to "UTC".
+    `use_pure` : boolean
+        Whether to use the pure Python implementation of MySQL connector (True) or use the C
+        extentsion (False). Default is True i.e. pure Python. N.B. C extension is much quicker when
+        returning large datasets - see `Connector/Python C Extension Docs
+        <https://dev.mysql.com/doc/connector-python/en/connector-python-cext.html>`_.
+    `query_log` : string
+        Optionally specify a log file where query stats will be logged.
+    
+
+    Notes
+    -----
+    You must either pass the mysql defaults file (which must contain all of the required
+    parameters) or pass the db_config dict with keys: 'host', 'user', 'password', 'database'.
+
+    Warnings
+    --------
+    Logging is currently not available.
+    """
+    def __init__(
+        self,
+        connector_args: dict,
+        session_tz: str = "UTC",
+        query_log: Optional[str] = None,
+        pool_size: int = 1,
+        sleep_interval: int = 1,
+        cnx_retries: int = 10
+    ) -> None:
+        self.connector_args = {
+            "connection_timeout": 60,
+            "buffered": True,
+            "get_warnings": True,
+            "raise_on_warnings": False,
+            "use_pure": True,
+        }
+        self.connector_args.update(connector_args)
+        self.pool = DBConnectionPool(self.connector_args, pool_size)
+        self.retry_errors = (
+            #Can't connect to MySQL server on...
+            errorcode.CR_CONN_HOST_ERROR,
+            errorcode.CR_IPSOCK_ERROR,
+            errorcode.CR_SERVER_GONE_ERROR,
+            errorcode.CR_SERVER_LOST,
+            errorcode.CR_SERVER_LOST_EXTENDED,
+            #Too many connections
+            errorcode.ER_CON_COUNT_ERROR,
+            #Deadlock found when trying to get lock; try restarting transaction
+            errorcode.ER_LOCK_DEADLOCK,
+            #Server shutdown in progress
+            errorcode.ER_SERVER_SHUTDOWN,
+            #Lock wait timeout exceeded (maybe extend timeout?)
+            errorcode.ER_LOCK_WAIT_TIMEOUT,
+        )
+        debug(f"config: {self._redacted_connector_args()}")
+        self.sleep_interval = sleep_interval
+        self.cnx_retries = cnx_retries
+        self.session_tz = session_tz
+        self.query_log = DBConnectorLog(query_log, self.connector_args)
+
+    def __enter__(self):
+        """Enter the context manager. Test the connection and log a debug message."""
+        self._test_query()
+        return self
+
+    def __exit__(self, *args):
+        self._close_connections()
+
+    def _test_query(self):
+        """
+        Create a new connection and submit a test query to see if the connection has been
+        successful. Used to ensure any failure to connection errors occur at the point of creating
+        the DBConnector instance rather than waiting until the first query is made.
+        """
+        cnx_retries = self.cnx_retries
+        self.cnx_retries = 3
+        connection_timeout = self.connector_args["connection_timeout"]
+        self.pool.conn_args["connection_timeout"] = 5
+        debug("submitting test query")
+        try:
+            self.query("SELECT 1;")
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
+        except:
+            debug("test query failed")
+            raise
+        debug("test query successful")
+        self.cnx_retries = cnx_retries
+        self.pool.conn_args["connection_timeout"] = connection_timeout
+        return
+
+    def _redacted_connector_args(self):
+        return {k: v if k!="password" else "REDACTED" for k, v in self.connector_args.items()}
+
+    def _connect(self):
+        """
+        Open a connection to the database. Use connection pooling to reduce new connections.
+
+        Returns
+        -------
+        mysql.connector.connection.MySQLConnection
+            Database connection object.
+        See Also
+        --------
+        `MySQL Connector Python Docs <https://dev.mysql.com/doc/connector-python/en/index.html>`_,
+        `MySQL Connection Pooling Docs
+        <https://dev.mysql.com/doc/connector-python/en/connector-python-connection-pooling.html>`_
+        Notes
+        -----
+        If a connection pool is not yet opened, then calling a mysql.connector.connect() with the
+        *pool_size* option will open a new pool and return a connection. If a connection pool with
+        the same name is already open, then a connection will be returned from that pool.
+        By not setting the pool_name parameter, the connect() function automatically generates the
+        name, composed from whichever of the host, port, user, and database connection arguments are
+        given.
+        """
+        cnx = None
+        try:
+            cnx = self.pool._get_connection()
+        except mysql.connector.Error as err:
+            if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
+                raise DBConnectorException("Something is wrong with the mysql username or "
+                                           "password.")
+            elif err.errno == errorcode.ER_BAD_DB_ERROR:
+                raise DBConnectorException("The database does not exist.")
+            elif err.errno in self.retry_errors:
+                warning(f"MySQL Connector Error: {err}")
+                self.pool._return_connection(cnx)
+                return None
+            else:
+                raise
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
+        except:
+            raise
+        if self.session_tz is not None:
+            cnx.time_zone = self.session_tz
+        return cnx
+
+    def _connect_retry(self, cnx_retries=1):
+        """Get a connection to the database with optional retries."""
+        retries = 0
+        test = False
+        sleep_interval = self.sleep_interval
+        while not test:
+            cnx = self._connect()
+            retries += 1
+            if cnx is None:
+                test = False
+            else:
+                test = cnx.is_connected()
+            if not test:
+                if retries < cnx_retries:
+                    warning(f"Connection failed - retrying in {self.sleep_interval} seconds")
+                    self.pool._return_connection(cnx)
+                    test = False
+                    TIME.sleep(sleep_interval)
+                    sleep_interval *= 2
+                else:
+                    #import pdb; pdb.set_trace()
+                    raise DBConnectorException(f"Failed to connect to the DB after {cnx_retries} "
+                                               f"retries.")
+        return cnx
+
+    def _safe_query(self, query_type, **kwargs):
+        """
+        Execute an SQL statement with added resilience.
+
+        Parameters
+        ----------
+        `query_type` : DBConnector class method
+            One of *DBConnector._select_query*, *DBConnector._proc_query*,
+            *DBConnector._iud_query*.
+
+        Returns
+        -------
+        list of lists
+            As returned by the `MySQL Python Connector
+            <https://dev.mysql.com/doc/connector-python/en/index.html>`__.
+        Notes
+        -----
+        Any additional arguments required by the query methods must be supplied as *kwargs*.
+        This method retries failed queries due to *retry_errors* with exponential back-off.
+        Queries that fail due to failure to retrieve a connection also retry
+        with exponential back-off, but only up to *self.cnx_retries* times.
+        """
+        success = False
+        sleep_interval = self.sleep_interval
+        while not success:
+            cnx = self._connect_retry(cnx_retries=self.cnx_retries)
+            start = datetime.utcnow()
+            try:
+                result = query_type(cnx, **kwargs)
+                success = True
+                if self.query_log is not None:
+                    time_taken = (datetime.utcnow() - start).total_seconds()
+                    sql = kwargs.get("sqlquery", None)
+                    self.query_log.log_query(sql, start, time_taken)
+            except mysql.connector.Error as err:
+                if err.errno in self.retry_errors:
+                    if self.query_log is not None:
+                        time_taken = (datetime.utcnow() - start).total_seconds()
+                        sql = kwargs.get("sqlquery", None)
+                        self.query_log.log_query(sql, start, time_taken, 1, err)
+                    self.pool._return_connection(cnx)
+                    warning(f"MySQL Error: {err}")
+                    TIME.sleep(sleep_interval)
+                    sleep_interval *= 2
+                else:
+                    self.pool._return_connection(cnx)
+                    raise
+            except KeyboardInterrupt:
+                raise KeyboardInterrupt
+            except:
+                self.pool._return_connection(cnx)
+                err = sys.exc_info()[0]
+                raise DBConnectorException(f"Encountered an error during MySQL query ({err}).")
+        self.pool._return_connection(cnx)
+        return result
+
+
[docs]    def query(self, sqlquery: str, df: bool = False):
+        """
+        Query the database using select (with resilience).
+
+        Parameters
+        ----------
+        `sqlquery` : string
+            SQL `select` statement to be executed.
+        `df` : boolean
+            Set to True to return query results as Pandas DataFrame. Column names will be extracted
+            from the *sqlquery* and converted to lowercase (do not use "select * from").
+        Returns
+        -------
+        list
+            List of tuples, [(R1C1, R1C2, ...), (R2C1, R2C2, ...), ...].
+            Length of list corresponds to N rows returned, length of tuples corresponds to columns
+            selected.
+        See Also
+        --------
+        MySQL Connector Python Docs: https://dev.mysql.com/doc/connector-python/en/index.html.
+        Notes
+        -----
+        MySQL Connector Python is prone to dropped connections - this wrapper adds resilience by
+        retrying.
+        """
+        return self._safe_query(self._select_query, sqlquery=sqlquery, df=df)

+
+
[docs]    def proc(self, proc: str, proc_args: list):
+        """Execute a MySQL procedure with resilience."""
+        return self._safe_query(self._proc_query, proc=proc, proc_args=proc_args)

+
+
[docs]    def iud_query(self, sqlquery: str, data: Optional[list[list]] = None, size: int = 1000):
+        """Execute an insert/update/delete SQL statement with resilience."""
+        return self._safe_query(self._iud_query, sqlquery=sqlquery, data=data, size=size)

+
+    def _close_connections(self):
+        """Close all connections when done for optimal DB efficiency."""
+        self.pool.close_all()
+
+    @staticmethod
+    def _safe_close(cnx):
+        """Close a DB connection with resilience. DEPRECATED"""
+        try:
+            while cnx:
+                cnx.close()
+                while cnx.is_connected():
+                    cnx.close()
+        except (AttributeError, mysql.connector.errors.OperationalError):
+            pass
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
+        except:
+            raise
+        return
+
+    @staticmethod
+    def _select_query(cnx, **kwargs):
+        """Execute a select query."""
+        sqlquery = kwargs.get("sqlquery", None)
+        debug(f"select query: {sqlquery}")
+        df = kwargs.get("df", False)
+        cursor = cnx.cursor()
+        cursor.execute(sqlquery)
+        result = cursor.fetchall()
+        cursor.close()
+        if df:
+            debug("converting query result to dataframe")
+            col_regex = "(?<=^select)[a-zA-Z0-9_\s*(),`]+(?=from)"
+            cols = [c.strip().split(" as ")[-1].strip().strip("`") for c in
+                    re.findall(col_regex, sqlquery.lower())[0].strip().split(",")]
+            return DataFrame(result, columns=cols)
+        return result
+
+    @staticmethod
+    def _proc_query(cnx, **kwargs):
+        """Execute a MySQL procedure."""
+        proc = kwargs.get("proc", None)
+        proc_args = kwargs.get("proc_args", None)
+        debug(f"procedure call: call {proc}({', '.join(map(str, proc_args))})")
+        cursor = cnx.cursor()
+        result = []
+        cursor.callproc(proc, proc_args)
+        for res in cursor.stored_results():
+            result.append(res.fetchall())
+        cursor.close()
+        return result
+
+    @staticmethod
+    def _iud_query(cnx, **kwargs):
+        """Execute an insert/update/delete SQL statement."""
+        size = kwargs.get("size", 1000)
+        data = kwargs.get("data", None)
+        sqlquery = kwargs.get("sqlquery", None)
+        debug(f"insert/update/delete query: {sqlquery}")
+        cursor = cnx.cursor()
+        if data is None:
+            cursor.execute(sqlquery)
+        else:
+            for i in range(0, len(data), size):
+                cursor.executemany(sqlquery, data[i:(i+size)])
+        cnx.commit()
+        affected = cursor.rowcount
+        cursor.close()
+        return affected

+
+ +
+
+
+
+
+ + + + + \ No newline at end of file diff --git a/docs/build/_modules/index.html b/docs/build/_modules/index.html new file mode 100644 index 0000000..0218b88 --- /dev/null +++ b/docs/build/_modules/index.html @@ -0,0 +1,232 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Overview: module code — MySQL-DBConnector 1.3.1 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + Skip to content +
+ +
+ + +
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+ + + + + \ No newline at end of file diff --git a/docs/build/_sources/index.rst.txt b/docs/build/_sources/index.rst.txt new file mode 100644 index 0000000..20a7794 --- /dev/null +++ b/docs/build/_sources/index.rst.txt @@ -0,0 +1,23 @@ +.. MySQL-DBConnector documentation master file, created by + sphinx-quickstart on Mon Sep 03 17:20:00 2018. + You can adapt this file completely to your liking, but it should at least + contain the root `toctree` directive. + +Welcome to MySQL-DBConnector's documentation! +============================================= + +.. toctree:: + :maxdepth: 2 + :caption: Contents: + + self + modules + + + +Indices and tables +================== + +* :ref:`genindex` +* :ref:`modindex` +* :ref:`search` diff --git a/docs/build/_sources/modules.rst.txt b/docs/build/_sources/modules.rst.txt new file mode 100644 index 0000000..7cbc989 --- /dev/null +++ b/docs/build/_sources/modules.rst.txt @@ -0,0 +1,15 @@ +Modules +======= + + +.. contents:: Contents + :depth: 2 + + +dbconnector +----------- + +.. autoclass:: dbconnector.dbconnector.DBConnector + :members: + :undoc-members: + :show-inheritance: \ No newline at end of file diff --git a/docs/build/_static/basic.css b/docs/build/_static/basic.css new file mode 100644 index 0000000..bf18350 --- /dev/null +++ b/docs/build/_static/basic.css @@ -0,0 +1,906 @@ +/* + * basic.css + * ~~~~~~~~~ + * + * Sphinx stylesheet -- basic theme. + * + * :copyright: Copyright 2007-2022 by the Sphinx team, see AUTHORS. + * :license: BSD, see LICENSE for details. + * + */ + +/* -- main layout ----------------------------------------------------------- */ + +div.clearer { + clear: both; +} + +div.section::after { + display: block; + content: ''; + clear: left; +} + +/* -- relbar ---------------------------------------------------------------- */ + +div.related { + width: 100%; + font-size: 90%; +} + +div.related h3 { + display: none; +} + +div.related ul { + margin: 0; + padding: 0 0 0 10px; + list-style: none; +} + +div.related li { + display: inline; +} + +div.related li.right { + float: right; + margin-right: 5px; +} + +/* -- sidebar --------------------------------------------------------------- */ + +div.sphinxsidebarwrapper { + padding: 10px 5px 0 10px; +} + +div.sphinxsidebar { + float: left; + width: 230px; + margin-left: -100%; + font-size: 90%; + word-wrap: break-word; + overflow-wrap : break-word; +} + +div.sphinxsidebar ul { + list-style: none; +} + +div.sphinxsidebar ul ul, +div.sphinxsidebar ul.want-points { + margin-left: 20px; + list-style: square; +} + +div.sphinxsidebar ul ul { + margin-top: 0; + margin-bottom: 0; +} + +div.sphinxsidebar form { + margin-top: 10px; 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+ +/** + * make the code below compatible with browsers without + * an installed firebug like debugger +if (!window.console || !console.firebug) { + var names = ["log", "debug", "info", "warn", "error", "assert", "dir", + "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace", + "profile", "profileEnd"]; + window.console = {}; + for (var i = 0; i < names.length; ++i) + window.console[names[i]] = function() {}; +} + */ + +/** + * small helper function to urldecode strings + * + * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent#Decoding_query_parameters_from_a_URL + */ +jQuery.urldecode = function(x) { + if (!x) { + return x + } + return decodeURIComponent(x.replace(/\+/g, ' ')); +}; + +/** + * small helper function to urlencode strings + */ +jQuery.urlencode = encodeURIComponent; + +/** + * This function returns the parsed url parameters of the + * current request. 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rv:([\w.]+)|)/.exec(ua) || + []; + + return { + browser: match[ 1 ] || "", + version: match[ 2 ] || "0" + }; + }; + jQuery.browser = {}; + jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true; +} + +/** + * Small JavaScript module for the documentation. + */ +var Documentation = { + + init : function() { + this.fixFirefoxAnchorBug(); + this.highlightSearchWords(); + this.initIndexTable(); + if (DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) { + this.initOnKeyListeners(); + } + }, + + /** + * i18n support + */ + TRANSLATIONS : {}, + PLURAL_EXPR : function(n) { return n === 1 ? 0 : 1; }, + LOCALE : 'unknown', + + // gettext and ngettext don't access this so that the functions + // can safely bound to a different name (_ = Documentation.gettext) + gettext : function(string) { + var translated = Documentation.TRANSLATIONS[string]; + if (typeof translated === 'undefined') + return string; + return (typeof translated === 'string') ? translated : translated[0]; + }, + + ngettext : function(singular, plural, n) { + var translated = Documentation.TRANSLATIONS[singular]; + if (typeof translated === 'undefined') + return (n == 1) ? singular : plural; + return translated[Documentation.PLURALEXPR(n)]; + }, + + addTranslations : function(catalog) { + for (var key in catalog.messages) + this.TRANSLATIONS[key] = catalog.messages[key]; + this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')'); + this.LOCALE = catalog.locale; + }, + + /** + * add context elements like header anchor links + */ + addContextElements : function() { + $('div[id] > :header:first').each(function() { + $('\u00B6'). + attr('href', '#' + this.id). + attr('title', _('Permalink to this headline')). + appendTo(this); + }); + $('dt[id]').each(function() { + $('\u00B6'). + attr('href', '#' + this.id). + attr('title', _('Permalink to this definition')). + appendTo(this); + }); + }, + + /** + * workaround a firefox stupidity + * see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075 + */ + fixFirefoxAnchorBug : function() { + if (document.location.hash && $.browser.mozilla) + window.setTimeout(function() { + document.location.href += ''; + }, 10); + }, + + /** + * highlight the search words provided in the url in the text + */ + highlightSearchWords : function() { + var params = $.getQueryParameters(); + var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : []; + if (terms.length) { + var body = $('div.body'); + if (!body.length) { + body = $('body'); + } + window.setTimeout(function() { + $.each(terms, function() { + body.highlightText(this.toLowerCase(), 'highlighted'); + }); + }, 10); + $('

' + _('Hide Search Matches') + '

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DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL; + }, + + /** + * get the current relative url + */ + getCurrentURL : function() { + var path = document.location.pathname; + var parts = path.split(/\//); + $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() { + if (this === '..') + parts.pop(); + }); + var url = parts.join('/'); + return path.substring(url.lastIndexOf('/') + 1, path.length - 1); + }, + + initOnKeyListeners: function() { + $(document).keydown(function(event) { + var activeElementType = document.activeElement.tagName; + // don't navigate when in search box, textarea, dropdown or button + if (activeElementType !== 'TEXTAREA' && activeElementType !== 'INPUT' && activeElementType !== 'SELECT' + && activeElementType !== 'BUTTON' && !event.altKey && !event.ctrlKey && !event.metaKey + && !event.shiftKey) { + switch (event.keyCode) { + case 37: // left + var prevHref = $('link[rel="prev"]').prop('href'); + if (prevHref) { + window.location.href = prevHref; + return 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t(e) : void 0 !== e.__html ? n.innerHTML += e.__html : e instanceof Node && n.appendChild(e) + }) + }(i), n + } + n.r(t), n.d(t, "createElement", function() { + return r + }) +}, function(e, t) { + var n; + n = function() { + return this + }(); + try { + n = n || new Function("return this")() + } catch (e) { + "object" == typeof window && (n = window) + } + e.exports = n +}, function(e, t, n) { + var r; + r = function() { + return function(n) { + var r = {}; + + function i(e) { + if (r[e]) return r[e].exports; + var t = r[e] = { + i: e, + l: !1, + exports: {} + }; + return n[e].call(t.exports, t, t.exports, i), t.l = !0, t.exports + } + return i.m = n, i.c = r, i.d = function(e, t, n) { + i.o(e, t) || Object.defineProperty(e, t, { + enumerable: !0, + get: n + }) + }, i.r = function(e) { + "undefined" != typeof Symbol && Symbol.toStringTag && Object.defineProperty(e, Symbol.toStringTag, { + value: "Module" + }), Object.defineProperty(e, "__esModule", { + value: !0 + }) + }, i.t = function(t, e) { + if (1 & e && (t = i(t)), 8 & e) return t; + if (4 & e && "object" == typeof t && t && t.__esModule) return t; + var n = Object.create(null); + if (i.r(n), Object.defineProperty(n, "default", { + enumerable: !0, + value: t + }), 2 & e && "string" != typeof t) + for (var r in t) i.d(n, r, function(e) { + return t[e] + }.bind(null, r)); + return n + }, i.n = function(e) { + var t = e && e.__esModule ? function() { + return e.default + } : function() { + return e + }; + return i.d(t, "a", t), t + }, i.o = function(e, t) { + return Object.prototype.hasOwnProperty.call(e, t) + }, i.p = "", i(i.s = 0) + }([function(e, t, n) { + "use strict"; + var i = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function(e) { + return typeof e + } : function(e) { + return e && "function" == typeof Symbol && e.constructor === Symbol && e !== Symbol.prototype ? "symbol" : typeof e + }, + o = function() { + function r(e, t) { + for (var n = 0; n < t.length; n++) { + var r = t[n]; + r.enumerable = r.enumerable || !1, r.configurable = !0, "value" in r && (r.writable = !0), Object.defineProperty(e, r.key, r) + } + } + return function(e, t, n) { + return t && r(e.prototype, t), n && r(e, n), e + } + }(), + a = r(n(1)), + s = r(n(3)), + c = r(n(4)); + + function r(e) { + return e && e.__esModule ? e : { + default: e + } + } + var l = function(e) { + function r(e, t) { + ! function(e, t) { + if (!(e instanceof t)) throw new TypeError("Cannot call a class as a function") + }(this, r); + var n = function(e, t) { + if (!e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); + return !t || "object" != typeof t && "function" != typeof t ? e : t + }(this, (r.__proto__ || Object.getPrototypeOf(r)).call(this)); + return n.resolveOptions(t), n.listenClick(e), n + } + return function(e, t) { + if ("function" != typeof t && null !== t) throw new TypeError("Super expression must either be null or a function, not " + typeof t); + e.prototype = Object.create(t && t.prototype, { + constructor: { + value: e, + enumerable: !1, + writable: !0, + configurable: !0 + } + }), t && (Object.setPrototypeOf ? Object.setPrototypeOf(e, t) : e.__proto__ = t) + }(r, s.default), o(r, [{ + key: "resolveOptions", + value: function() { + var e = 0 < arguments.length && void 0 !== arguments[0] ? arguments[0] : {}; + this.action = "function" == typeof e.action ? e.action : this.defaultAction, this.target = "function" == typeof e.target ? e.target : this.defaultTarget, this.text = "function" == typeof e.text ? e.text : this.defaultText, this.container = "object" === i(e.container) ? e.container : document.body + } + }, { + key: "listenClick", + value: function(e) { + var t = this; + this.listener = (0, c.default)(e, "click", function(e) { + return t.onClick(e) + }) + } + }, { + key: "onClick", + value: function(e) { + var t = e.delegateTarget || e.currentTarget; + this.clipboardAction && (this.clipboardAction = null), this.clipboardAction = new a.default({ + action: this.action(t), + target: this.target(t), + text: this.text(t), + container: this.container, + trigger: t, + emitter: this + }) + } + }, { + key: "defaultAction", + value: function(e) { + return u("action", e) + } + }, { + key: "defaultTarget", + value: function(e) { + var t = u("target", e); + if (t) return document.querySelector(t) + } + }, { + key: "defaultText", + value: function(e) { + return u("text", e) + } + }, { + key: "destroy", + value: function() { + this.listener.destroy(), this.clipboardAction && (this.clipboardAction.destroy(), this.clipboardAction = null) + } + }], [{ + key: "isSupported", + value: function() { + var e = 0 < arguments.length && void 0 !== arguments[0] ? arguments[0] : ["copy", "cut"], + t = "string" == typeof e ? 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"symbol" : typeof e + }, + o = function() { + function r(e, t) { + for (var n = 0; n < t.length; n++) { + var r = t[n]; + r.enumerable = r.enumerable || !1, r.configurable = !0, "value" in r && (r.writable = !0), Object.defineProperty(e, r.key, r) + } + } + return function(e, t, n) { + return t && r(e.prototype, t), n && r(e, n), e + } + }(), + a = n(2), + s = (r = a) && r.__esModule ? r : { + default: r + }; + var c = function() { + function t(e) { + ! function(e, t) { + if (!(e instanceof t)) throw new TypeError("Cannot call a class as a function") + }(this, t), this.resolveOptions(e), this.initSelection() + } + return o(t, [{ + key: "resolveOptions", + value: function() { + var e = 0 < arguments.length && void 0 !== arguments[0] ? arguments[0] : {}; + this.action = e.action, this.container = e.container, this.emitter = e.emitter, this.target = e.target, this.text = e.text, this.trigger = e.trigger, this.selectedText = "" + } + }, { + key: "initSelection", + value: function() { + this.text ? this.selectFake() : this.target && this.selectTarget() + } + }, { + key: "selectFake", + value: function() { + var e = this, + t = "rtl" == document.documentElement.getAttribute("dir"); + this.removeFake(), this.fakeHandlerCallback = function() { + return e.removeFake() + }, this.fakeHandler = this.container.addEventListener("click", this.fakeHandlerCallback) || !0, this.fakeElem = document.createElement("textarea"), this.fakeElem.style.fontSize = "12pt", this.fakeElem.style.border = "0", this.fakeElem.style.padding = "0", this.fakeElem.style.margin = "0", this.fakeElem.style.position = "absolute", this.fakeElem.style[t ? "right" : "left"] = "-9999px"; + var n = window.pageYOffset || document.documentElement.scrollTop; + this.fakeElem.style.top = n + "px", this.fakeElem.setAttribute("readonly", ""), this.fakeElem.value = this.text, this.container.appendChild(this.fakeElem), this.selectedText = (0, s.default)(this.fakeElem), this.copyText() + } + }, { + key: "removeFake", + value: function() { + this.fakeHandler && (this.container.removeEventListener("click", this.fakeHandlerCallback), this.fakeHandler = null, this.fakeHandlerCallback = null), this.fakeElem && (this.container.removeChild(this.fakeElem), this.fakeElem = null) + } + }, { + key: "selectTarget", + value: function() { + this.selectedText = (0, s.default)(this.target), this.copyText() + } + }, { + key: "copyText", + value: function() { + var t = void 0; + try { + t = document.execCommand(this.action) + } catch (e) { + t = !1 + } + this.handleResult(t) + } + }, { + key: "handleResult", + value: function(e) { + this.emitter.emit(e ? "success" : "error", { + action: this.action, + text: this.selectedText, + trigger: this.trigger, + clearSelection: this.clearSelection.bind(this) + }) + } + }, { + key: "clearSelection", + value: function() { + this.trigger && this.trigger.focus(), window.getSelection().removeAllRanges() + } + }, { + key: "destroy", + value: function() { + this.removeFake() + } + }, { + key: "action", + set: function() { + var e = 0 < arguments.length && void 0 !== arguments[0] ? arguments[0] : "copy"; + if (this._action = e, "copy" !== this._action && "cut" !== this._action) throw new Error('Invalid "action" value, use either "copy" or "cut"') + }, + get: function() { + return this._action + } + }, { + key: "target", + set: function(e) { + if (void 0 !== e) { + if (!e || "object" !== (void 0 === e ? "undefined" : i(e)) || 1 !== e.nodeType) throw new Error('Invalid "target" value, use a valid Element'); + if ("copy" === this.action && e.hasAttribute("disabled")) throw new Error('Invalid "target" attribute. Please use "readonly" instead of "disabled" attribute'); + if ("cut" === this.action && (e.hasAttribute("readonly") || e.hasAttribute("disabled"))) throw new Error('Invalid "target" attribute. You can\'t cut text from elements with "readonly" or "disabled" attributes'); + this._target = e + } + }, + get: function() { + return this._target + } + }]), t + }(); + e.exports = c + }, function(e, t) { + e.exports = function(e) { + var t; + if ("SELECT" === e.nodeName) e.focus(), t = e.value; + else if ("INPUT" === e.nodeName || "TEXTAREA" === e.nodeName) { + var n = e.hasAttribute("readonly"); + n || e.setAttribute("readonly", ""), e.select(), e.setSelectionRange(0, e.value.length), n || e.removeAttribute("readonly"), t = e.value + } else { + e.hasAttribute("contenteditable") && e.focus(); + var r = window.getSelection(), + i = document.createRange(); + i.selectNodeContents(e), r.removeAllRanges(), r.addRange(i), t = r.toString() + } + return t + } + }, function(e, t) { + function n() {} + n.prototype = { + on: function(e, t, n) { + var r = this.e || (this.e = {}); + return (r[e] || (r[e] = [])).push({ + fn: t, + ctx: n + }), this + }, + once: function(e, t, n) { + var r = this; + + function i() { + r.off(e, i), t.apply(n, arguments) + } + return i._ = t, this.on(e, i, n) + }, + emit: function(e) { + for (var t = [].slice.call(arguments, 1), n = ((this.e || (this.e = {}))[e] || []).slice(), r = 0, i = n.length; r < i; r++) n[r].fn.apply(n[r].ctx, t); + return this + }, + off: function(e, t) { + var n = this.e || (this.e = {}), + r = n[e], + i = []; + if (r && t) + for (var o = 0, a = r.length; o < a; o++) r[o].fn !== t && r[o].fn._ !== t && i.push(r[o]); + return i.length ? n[e] = i : delete n[e], this + } + }, e.exports = n + }, function(e, t, n) { + var d = n(5), + h = n(6); + e.exports = function(e, t, n) { + if (!e && !t && !n) throw new Error("Missing required arguments"); + if (!d.string(t)) throw new TypeError("Second argument must be a String"); + if (!d.fn(n)) throw new TypeError("Third argument must be a Function"); + if (d.node(e)) return u = t, f = n, (l = e).addEventListener(u, f), { + destroy: function() { + l.removeEventListener(u, f) + } + }; + if (d.nodeList(e)) return a = e, s = t, c = n, Array.prototype.forEach.call(a, function(e) { + e.addEventListener(s, c) + }), { + destroy: function() { + Array.prototype.forEach.call(a, function(e) { + e.removeEventListener(s, c) + }) + } + }; 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+ n.matches = n.matchesSelector || n.mozMatchesSelector || n.msMatchesSelector || n.oMatchesSelector || n.webkitMatchesSelector + } + e.exports = function(e, t) { + for (; e && 9 !== e.nodeType;) { + if ("function" == typeof e.matches && e.matches(t)) return e; + e = e.parentNode + } + } + }]) + }, e.exports = r() +}, function(r, i, o) { + var a, s; + ! function(e) { + if (void 0 === (s = "function" == typeof(a = e) ? a.call(i, o, i, r) : a) || (r.exports = s), !0, r.exports = e(), !!0) { + var t = window.Cookies, + n = window.Cookies = e(); + n.noConflict = function() { + return window.Cookies = t, n + } + } + }(function() { + function m() { + for (var e = 0, t = {}; e < arguments.length; e++) { + var n = arguments[e]; + for (var r in n) t[r] = n[r] + } + return t + } + return function e(h) { + function p(e, t, n) { + var r; + if ("undefined" != typeof document) { + if (1 < arguments.length) { + if ("number" == typeof(n = m({ + path: "/" + }, p.defaults, n)).expires) { + var i = new Date; 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+ break + } + e || (r[d] = f) + } catch (e) {} + } + return r + } + } + return (p.set = p).get = function(e) { + return p.call(p, e) + }, p.getJSON = function() { + return p.apply({ + json: !0 + }, [].slice.call(arguments)) + }, p.defaults = {}, p.remove = function(e, t) { + p(e, "", m(t, { + expires: -1 + })) + }, p.withConverter = e, p + }(function() {}) + }) +}, function(e, t, n) { + "use strict"; + n.r(t); + var r = "function" == typeof fetch ? fetch.bind() : function(i, o) { + return o = o || {}, new Promise(function(e, t) { + var n = new XMLHttpRequest; + for (var r in n.open(o.method || "get", i, !0), o.headers) n.setRequestHeader(r, o.headers[r]); + + function s() { + var r, i = [], + o = [], + a = {}; + return n.getAllResponseHeaders().replace(/^(.*?):[^\S\n]*([\s\S]*?)$/gm, function(e, t, n) { + i.push(t = t.toLowerCase()), o.push([t, n]), r = a[t], a[t] = r ? r + "," + n : n + }), { + ok: 2 == (n.status / 100 | 0), + status: n.status, + statusText: n.statusText, + url: n.responseURL, + clone: s, + text: function() { + return Promise.resolve(n.responseText) + }, + json: function() { + return Promise.resolve(n.responseText).then(JSON.parse) + }, + blob: function() { + return Promise.resolve(new Blob([n.response])) + }, + headers: { + keys: function() { + return i + }, + entries: function() { + return o + }, + get: function(e) { + return a[e.toLowerCase()] + }, + has: function(e) { + return e.toLowerCase() in a + } + } + } + } + n.withCredentials = "include" == o.credentials, n.onload = function() { + e(s()) + }, n.onerror = t, n.send(o.body || null) + }) + }; + t.default = r +}, function(e, t, n) { + "use strict"; + t.a = function(t) { + var n = this.constructor; + return this.then(function(e) { + return n.resolve(t()).then(function() { + return e + }) + }, function(e) { + return n.resolve(t()).then(function() { + return n.reject(e) + }) + }) + } +}, function(e, n, r) { + "use strict"; + (function(f) { + r.d(n, "a", function() { + return t + }); + var e = r(1), + d = r.n(e), + h = function(e) { + var t = document.getElementsByName("lang:" + e)[0]; + if (!(t instanceof HTMLMetaElement)) throw new ReferenceError; + return t.content + }, + t = function() { + function e(e, t) { + var n = "string" == typeof e ? document.querySelector(e) : e; + if (!(n instanceof HTMLElement)) throw new ReferenceError; + this.el_ = n; + var r = Array.prototype.slice.call(this.el_.children), + i = r[0], + o = r[1]; + this.data_ = t, this.meta_ = i, this.list_ = o, this.message_ = { + placeholder: this.meta_.textContent, + none: h("search.result.none"), + one: h("search.result.one"), + other: h("search.result.other") + }; 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+ break; + case 1: + this.meta_.textContent = this.message_.one; + break; + default: + this.meta_.textContent = this.message_.other.replace("#", r.size) + } + } + } else { + var u = function(e) { + a.docs_ = e.reduce(function(e, t) { + var n, r, i, o = t.location.split("#"), + a = o[0], + s = o[1]; + return t.text = (n = t.text, r = document.createTextNode(n), (i = document.createElement("p")).appendChild(r), i.innerHTML), s && (t.parent = e.get(a), t.parent && !t.parent.done && (t.parent.title = t.title, t.parent.text = t.text, t.parent.done = !0)), t.text = t.text.replace(/\n/g, " ").replace(/\s+/g, " ").replace(/\s+([,.:;!?])/g, function(e, t) { + return t + }), t.parent && t.parent.title === t.title || e.set(t.location, t), e + }, new Map); + var i = a.docs_, + o = a.lang_; + a.stack_ = [], a.index_ = d()(function() { + var e, t = this, + n = { + "search.pipeline.trimmer": d.a.trimmer, + "search.pipeline.stopwords": d.a.stopWordFilter + }, + r = Object.keys(n).reduce(function(e, t) { + return h(t).match(/^false$/i) || e.push(n[t]), e + }, []); 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"" : e.toString() + }, D.utils.clone = function(e) { + if (null == e) return e; + for (var t = Object.create(null), n = Object.keys(e), r = 0; r < n.length; r++) { + var i = n[r], + o = e[i]; + if (Array.isArray(o)) t[i] = o.slice(); + else { + if ("string" != typeof o && "number" != typeof o && "boolean" != typeof o) throw new TypeError("clone is not deep and does not support nested objects"); + t[i] = o + } + } + return t + }, D.FieldRef = function(e, t, n) { + this.docRef = e, this.fieldName = t, this._stringValue = n + }, D.FieldRef.joiner = "/", D.FieldRef.fromString = function(e) { + var t = e.indexOf(D.FieldRef.joiner); + if (-1 === t) throw "malformed field ref string"; + var n = e.slice(0, t), + r = e.slice(t + 1); + return new D.FieldRef(r, n, e) + }, D.FieldRef.prototype.toString = function() { + return null == this._stringValue && (this._stringValue = this.fieldName + D.FieldRef.joiner + this.docRef), this._stringValue + }, D.Set = function(e) { + if (this.elements = Object.create(null), e) { + this.length = e.length; + for (var t = 0; t < this.length; t++) this.elements[e[t]] = !0 + } else this.length = 0 + }, D.Set.complete = { + intersect: function(e) { + return e + }, + union: function(e) { + return e + }, + contains: function() { + return !0 + } + }, D.Set.empty = { + intersect: function() { + return this + }, + union: function(e) { + return e + }, + contains: function() { + return !1 + } + }, D.Set.prototype.contains = function(e) { + return !!this.elements[e] + }, D.Set.prototype.intersect = function(e) { + var t, n, r, i = []; + if (e === D.Set.complete) return this; + if (e === D.Set.empty) return e; + n = this.length < e.length ? (t = this, e) : (t = e, this), r = Object.keys(t.elements); + for (var o = 0; o < r.length; o++) { + var a = r[o]; + a in n.elements && i.push(a) + } + return new D.Set(i) + }, D.Set.prototype.union = function(e) { + return e === D.Set.complete ? D.Set.complete : e === D.Set.empty ? this : new D.Set(Object.keys(this.elements).concat(Object.keys(e.elements))) + }, D.idf = function(e, t) { + var n = 0; + for (var r in e) "_index" != r && (n += Object.keys(e[r]).length); + var i = (t - n + .5) / (n + .5); + return Math.log(1 + Math.abs(i)) + }, D.Token = function(e, t) { + this.str = e || "", this.metadata = t || {} + }, D.Token.prototype.toString = function() { + return this.str + }, D.Token.prototype.update = function(e) { + return this.str = e(this.str, this.metadata), this + }, D.Token.prototype.clone = function(e) { + return e = e || function(e) { + return e + }, new D.Token(e(this.str, this.metadata), this.metadata) + }, D.tokenizer = function(e, t) { + if (null == e || null == e) return []; + if (Array.isArray(e)) return e.map(function(e) { + return new D.Token(D.utils.asString(e).toLowerCase(), D.utils.clone(t)) + }); + for (var n = e.toString().trim().toLowerCase(), r = n.length, i = [], o = 0, a = 0; o <= r; o++) { + var s = o - a; + if (n.charAt(o).match(D.tokenizer.separator) || o == r) { + if (0 < s) { + var c = D.utils.clone(t) || {}; + c.position = [a, s], c.index = i.length, i.push(new D.Token(n.slice(a, o), c)) + } + a = o + 1 + } + } + return i + }, D.tokenizer.separator = /[\s\-]+/, D.Pipeline = function() { + this._stack = [] + }, D.Pipeline.registeredFunctions = Object.create(null), D.Pipeline.registerFunction = function(e, t) { + t in this.registeredFunctions && D.utils.warn("Overwriting existing registered function: " + t), e.label = t, D.Pipeline.registeredFunctions[e.label] = e + }, D.Pipeline.warnIfFunctionNotRegistered = function(e) { + e.label && e.label in this.registeredFunctions || D.utils.warn("Function is not registered with pipeline. This may cause problems when serialising the index.\n", e) + }, D.Pipeline.load = function(e) { + var n = new D.Pipeline; + return e.forEach(function(e) { + var t = D.Pipeline.registeredFunctions[e]; + if (!t) throw new Error("Cannot load unregistered function: " + e); + n.add(t) + }), n + }, D.Pipeline.prototype.add = function() { + Array.prototype.slice.call(arguments).forEach(function(e) { + D.Pipeline.warnIfFunctionNotRegistered(e), this._stack.push(e) + }, this) + }, D.Pipeline.prototype.after = function(e, t) { + D.Pipeline.warnIfFunctionNotRegistered(t); + var n = this._stack.indexOf(e); + if (-1 == n) throw new Error("Cannot find existingFn"); + n += 1, this._stack.splice(n, 0, t) + }, D.Pipeline.prototype.before = function(e, t) { + D.Pipeline.warnIfFunctionNotRegistered(t); + var n = this._stack.indexOf(e); + if (-1 == n) throw new Error("Cannot find existingFn"); + this._stack.splice(n, 0, t) + }, D.Pipeline.prototype.remove = function(e) { + var t = this._stack.indexOf(e); - 1 != t && this._stack.splice(t, 1) + }, D.Pipeline.prototype.run = function(e) { + for (var t = this._stack.length, n = 0; n < t; n++) { + for (var r = this._stack[n], i = [], o = 0; o < e.length; o++) { + var a = r(e[o], o, e); + if (void 0 !== a && "" !== a) + if (Array.isArray(a)) + for (var s = 0; s < a.length; s++) i.push(a[s]); + else i.push(a) + } + e = i + } + return e + }, D.Pipeline.prototype.runString = function(e, t) { + var n = new D.Token(e, t); + return this.run([n]).map(function(e) { + return e.toString() + }) + }, D.Pipeline.prototype.reset = function() { + this._stack = [] + }, D.Pipeline.prototype.toJSON = function() { + return this._stack.map(function(e) { + return D.Pipeline.warnIfFunctionNotRegistered(e), e.label + }) + }, D.Vector = function(e) { + this._magnitude = 0, this.elements = e || [] + }, D.Vector.prototype.positionForIndex = function(e) { + if (0 == this.elements.length) return 0; + for (var t = 0, n = this.elements.length / 2, r = n - t, i = Math.floor(r / 2), o = this.elements[2 * i]; 1 < r && (o < e && (t = i), e < o && (n = i), o != e);) r = n - t, i = t + Math.floor(r / 2), o = this.elements[2 * i]; + return o == e ? 2 * i : e < o ? 2 * i : o < e ? 2 * (i + 1) : void 0 + }, D.Vector.prototype.insert = function(e, t) { + this.upsert(e, t, function() { + throw "duplicate index" + }) + }, D.Vector.prototype.upsert = function(e, t, n) { + this._magnitude = 0; + var r = this.positionForIndex(e); + this.elements[r] == e ? this.elements[r + 1] = n(this.elements[r + 1], t) : this.elements.splice(r, 0, e, t) + }, D.Vector.prototype.magnitude = function() { + if (this._magnitude) return this._magnitude; + for (var e = 0, t = this.elements.length, n = 1; n < t; n += 2) { + var r = this.elements[n]; + e += r * r + } + return this._magnitude = Math.sqrt(e) + }, D.Vector.prototype.dot = function(e) { + for (var t = 0, n = this.elements, r = e.elements, i = n.length, o = r.length, a = 0, s = 0, c = 0, l = 0; c < i && l < o;)(a = n[c]) < (s = r[l]) ? c += 2 : s < a ? l += 2 : a == s && (t += n[c + 1] * r[l + 1], c += 2, l += 2); + return t + }, D.Vector.prototype.similarity = function(e) { + return this.dot(e) / this.magnitude() || 0 + }, D.Vector.prototype.toArray = function() { + for (var e = new Array(this.elements.length / 2), t = 1, n = 0; t < this.elements.length; t += 2, n++) e[n] = this.elements[t]; + return e + }, D.Vector.prototype.toJSON = function() { + return this.elements + }, D.stemmer = (l = { + ational: "ate", + tional: "tion", + enci: "ence", + anci: "ance", + izer: "ize", + bli: "ble", + alli: "al", + entli: "ent", + eli: "e", + ousli: "ous", + ization: "ize", + ation: "ate", + ator: "ate", + alism: "al", + iveness: "ive", + fulness: "ful", + ousness: "ous", + aliti: "al", + iviti: "ive", + biliti: "ble", + logi: "log" + }, u = { + icate: "ic", + ative: "", + alize: "al", + iciti: "ic", + ical: "ic", + ful: "", + ness: "" + }, e = "[aeiouy]", n = "[^aeiou][^aeiouy]*", f = new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*"), d = new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*[aeiouy][aeiou]*[^aeiou][^aeiouy]*"), h = new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy][aeiou]*[^aeiou][^aeiouy]*([aeiouy][aeiou]*)?$"), p = new RegExp("^([^aeiou][^aeiouy]*)?[aeiouy]"), m = /^(.+?)(ss|i)es$/, y = /^(.+?)([^s])s$/, v = /^(.+?)eed$/, g = /^(.+?)(ed|ing)$/, w = /.$/, _ = /(at|bl|iz)$/, E = new RegExp("([^aeiouylsz])\\1$"), x = new RegExp("^" + n + e + "[^aeiouwxy]$"), b = /^(.+?[^aeiou])y$/, k = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/, S = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/, T = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/, L = /^(.+?)(s|t)(ion)$/, R = /^(.+?)e$/, O = /ll$/, C = new RegExp("^" + n + e + "[^aeiouwxy]$"), r = function(e) { + var t, n, r, i, o, a, s; + if (e.length < 3) return e; + if ("y" == (r = e.substr(0, 1)) && (e = r.toUpperCase() + e.substr(1)), o = y, (i = m).test(e) ? e = e.replace(i, "$1$2") : o.test(e) && (e = e.replace(o, "$1$2")), o = g, (i = v).test(e)) { + var c = i.exec(e); + (i = f).test(c[1]) && (i = w, e = e.replace(i, "")) + } else if (o.test(e)) { + t = (c = o.exec(e))[1], (o = p).test(t) && (a = E, s = x, (o = _).test(e = t) ? e += "e" : a.test(e) ? (i = w, e = e.replace(i, "")) : s.test(e) && (e += "e")) + }(i = b).test(e) && (e = (t = (c = i.exec(e))[1]) + "i"); + (i = k).test(e) && (t = (c = i.exec(e))[1], n = c[2], (i = f).test(t) && (e = t + l[n])); + (i = S).test(e) && (t = (c = i.exec(e))[1], n = c[2], (i = f).test(t) && (e = t + u[n])); + if (o = L, (i = T).test(e)) t = (c = i.exec(e))[1], (i = d).test(t) && (e = t); + else if (o.test(e)) { + t = (c = o.exec(e))[1] + c[2], (o = d).test(t) && (e = t) + }(i = R).test(e) && (t = (c = i.exec(e))[1], o = h, a = C, ((i = d).test(t) || o.test(t) && !a.test(t)) && (e = t)); + return o = d, (i = O).test(e) && o.test(e) && (i = w, e = e.replace(i, "")), "y" == r && (e = r.toLowerCase() + e.substr(1)), e + }, function(e) { + return e.update(r) + }), D.Pipeline.registerFunction(D.stemmer, "stemmer"), D.generateStopWordFilter = function(e) { + var t = e.reduce(function(e, t) { + return e[t] = t, e + }, {}); + return function(e) { + if (e && t[e.toString()] !== e.toString()) return e + } + }, D.stopWordFilter = D.generateStopWordFilter(["a", "able", "about", "across", "after", "all", "almost", "also", "am", "among", "an", "and", "any", "are", "as", "at", "be", "because", "been", "but", "by", "can", "cannot", "could", "dear", "did", "do", "does", "either", "else", "ever", "every", "for", "from", "get", "got", "had", "has", "have", "he", "her", "hers", "him", "his", "how", "however", "i", "if", "in", "into", "is", "it", "its", "just", "least", "let", "like", "likely", "may", "me", "might", "most", "must", "my", "neither", "no", "nor", "not", "of", "off", "often", "on", "only", "or", "other", "our", "own", "rather", "said", "say", "says", "she", "should", "since", "so", "some", "than", "that", "the", "their", "them", "then", "there", "these", "they", "this", "tis", "to", "too", "twas", "us", "wants", "was", "we", "were", "what", "when", "where", "which", "while", "who", "whom", "why", "will", "with", "would", "yet", "you", "your"]), D.Pipeline.registerFunction(D.stopWordFilter, "stopWordFilter"), D.trimmer = function(e) { + return e.update(function(e) { + return e.replace(/^\W+/, "").replace(/\W+$/, "") + }) + }, D.Pipeline.registerFunction(D.trimmer, "trimmer"), D.TokenSet = function() { + this.final = !1, this.edges = {}, this.id = D.TokenSet._nextId, D.TokenSet._nextId += 1 + }, D.TokenSet._nextId = 1, D.TokenSet.fromArray = function(e) { + for (var t = new D.TokenSet.Builder, n = 0, r = e.length; n < r; n++) t.insert(e[n]); + return t.finish(), t.root + }, D.TokenSet.fromClause = function(e) { + return "editDistance" in e ? D.TokenSet.fromFuzzyString(e.term, e.editDistance) : D.TokenSet.fromString(e.term) + }, D.TokenSet.fromFuzzyString = function(e, t) { + for (var n = new D.TokenSet, r = [{ + node: n, + editsRemaining: t, + str: e + }]; r.length;) { + var i = r.pop(); + if (0 < i.str.length) { + var o, a = i.str.charAt(0); + a in i.node.edges ? o = i.node.edges[a] : (o = new D.TokenSet, i.node.edges[a] = o), 1 == i.str.length && (o.final = !0), r.push({ + node: o, + editsRemaining: i.editsRemaining, + str: i.str.slice(1) + }) + } + if (0 != i.editsRemaining) { + if ("*" in i.node.edges) var s = i.node.edges["*"]; + else { + s = new D.TokenSet; + i.node.edges["*"] = s + } + if (0 == i.str.length && (s.final = !0), r.push({ + node: s, + editsRemaining: i.editsRemaining - 1, + str: i.str + }), 1 < i.str.length && r.push({ + node: i.node, + editsRemaining: i.editsRemaining - 1, + str: i.str.slice(1) + }), 1 == i.str.length && (i.node.final = !0), 1 <= i.str.length) { + if ("*" in i.node.edges) var c = i.node.edges["*"]; + else { + c = new D.TokenSet; + i.node.edges["*"] = c + } + 1 == i.str.length && (c.final = !0), r.push({ + node: c, + editsRemaining: i.editsRemaining - 1, + str: i.str.slice(1) + }) + } + if (1 < i.str.length) { + var l, u = i.str.charAt(0), + f = i.str.charAt(1); + f in i.node.edges ? l = i.node.edges[f] : (l = new D.TokenSet, i.node.edges[f] = l), 1 == i.str.length && (l.final = !0), r.push({ + node: l, + editsRemaining: i.editsRemaining - 1, + str: u + i.str.slice(2) + }) + } + } + } + return n + }, D.TokenSet.fromString = function(e) { + for (var t = new D.TokenSet, n = t, r = 0, i = e.length; r < i; r++) { + var o = e[r], + a = r == i - 1; + if ("*" == o)(t.edges[o] = t).final = a; + else { + var s = new D.TokenSet; + s.final = a, t.edges[o] = s, t = s + } + } + return n + }, D.TokenSet.prototype.toArray = function() { + for (var e = [], t = [{ + prefix: "", + node: this + }]; t.length;) { + var n = t.pop(), + r = Object.keys(n.node.edges), + i = r.length; + n.node.final && (n.prefix.charAt(0), e.push(n.prefix)); + for (var o = 0; o < i; o++) { + var a = r[o]; + t.push({ + prefix: n.prefix.concat(a), + node: n.node.edges[a] + }) + } + } + return e + }, D.TokenSet.prototype.toString = function() { + if (this._str) return this._str; + for (var e = this.final ? "1" : "0", t = Object.keys(this.edges).sort(), n = t.length, r = 0; r < n; r++) { + var i = t[r]; + e = e + i + this.edges[i].id + } + return e + }, D.TokenSet.prototype.intersect = function(e) { + for (var t = new D.TokenSet, n = void 0, r = [{ + qNode: e, + output: t, + node: this + }]; r.length;) { + n = r.pop(); + for (var i = Object.keys(n.qNode.edges), o = i.length, a = Object.keys(n.node.edges), s = a.length, c = 0; c < o; c++) + for (var l = i[c], u = 0; u < s; u++) { + var f = a[u]; + if (f == l || "*" == l) { + var d = n.node.edges[f], + h = n.qNode.edges[l], + p = d.final && h.final, + m = void 0; + f in n.output.edges ? (m = n.output.edges[f]).final = m.final || p : ((m = new D.TokenSet).final = p, n.output.edges[f] = m), r.push({ + qNode: h, + output: m, + node: d + }) + } + } + } + return t + }, D.TokenSet.Builder = function() { + this.previousWord = "", this.root = new D.TokenSet, this.uncheckedNodes = [], this.minimizedNodes = {} + }, D.TokenSet.Builder.prototype.insert = function(e) { + var t, n = 0; + if (e < this.previousWord) throw new Error("Out of order word insertion"); + for (var r = 0; r < e.length && r < this.previousWord.length && e[r] == this.previousWord[r]; r++) n++; + this.minimize(n), t = 0 == this.uncheckedNodes.length ? this.root : this.uncheckedNodes[this.uncheckedNodes.length - 1].child; + for (r = n; r < e.length; r++) { + var i = new D.TokenSet, + o = e[r]; + t.edges[o] = i, this.uncheckedNodes.push({ + parent: t, + char: o, + child: i + }), t = i + } + t.final = !0, this.previousWord = e + }, D.TokenSet.Builder.prototype.finish = function() { + this.minimize(0) + }, D.TokenSet.Builder.prototype.minimize = function(e) { + for (var t = this.uncheckedNodes.length - 1; e <= t; t--) { + var n = this.uncheckedNodes[t], + r = n.child.toString(); + r in this.minimizedNodes ? n.parent.edges[n.char] = this.minimizedNodes[r] : (n.child._str = r, this.minimizedNodes[r] = n.child), this.uncheckedNodes.pop() + } + }, D.Index = function(e) { + this.invertedIndex = e.invertedIndex, this.fieldVectors = e.fieldVectors, this.tokenSet = e.tokenSet, this.fields = e.fields, this.pipeline = e.pipeline + }, D.Index.prototype.search = function(t) { + return this.query(function(e) { + new D.QueryParser(t, e).parse() + }) + }, D.Index.prototype.query = function(e) { + for (var t = new D.Query(this.fields), n = Object.create(null), r = Object.create(null), i = Object.create(null), o = Object.create(null), a = Object.create(null), s = 0; s < this.fields.length; s++) r[this.fields[s]] = new D.Vector; + e.call(t, t); + for (s = 0; s < t.clauses.length; s++) { + var c = t.clauses[s], + l = null, + u = D.Set.complete; + l = c.usePipeline ? this.pipeline.runString(c.term, { + fields: c.fields + }) : [c.term]; + for (var f = 0; f < l.length; f++) { + var d = l[f]; + c.term = d; + var h = D.TokenSet.fromClause(c), + p = this.tokenSet.intersect(h).toArray(); + if (0 === p.length && c.presence === D.Query.presence.REQUIRED) { + for (var m = 0; m < c.fields.length; m++) { + o[Q = c.fields[m]] = D.Set.empty + } + break + } + for (var y = 0; y < p.length; y++) { + var v = p[y], + g = this.invertedIndex[v], + w = g._index; + for (m = 0; m < c.fields.length; m++) { + var _ = g[Q = c.fields[m]], + E = Object.keys(_), + x = v + "/" + Q, + b = new D.Set(E); + if (c.presence == D.Query.presence.REQUIRED && (u = u.union(b), void 0 === o[Q] && (o[Q] = D.Set.complete)), c.presence != D.Query.presence.PROHIBITED) { + if (r[Q].upsert(w, c.boost, function(e, t) { + return e + t + }), !i[x]) { + for (var k = 0; k < E.length; k++) { + var S, T = E[k], + L = new D.FieldRef(T, Q), + R = _[T]; + void 0 === (S = n[L]) ? n[L] = new D.MatchData(v, Q, R) : S.add(v, Q, R) + } + i[x] = !0 + } + } else void 0 === a[Q] && (a[Q] = D.Set.empty), a[Q] = a[Q].union(b) + } + } + } + if (c.presence === D.Query.presence.REQUIRED) + for (m = 0; m < c.fields.length; m++) { + o[Q = c.fields[m]] = o[Q].intersect(u) + } + } + var O = D.Set.complete, + C = D.Set.empty; + for (s = 0; s < this.fields.length; s++) { + var Q; + o[Q = this.fields[s]] && (O = O.intersect(o[Q])), a[Q] && (C = C.union(a[Q])) + } + var P = Object.keys(n), + A = [], + I = Object.create(null); + if (t.isNegated()) { + P = Object.keys(this.fieldVectors); + for (s = 0; s < P.length; s++) { + L = P[s]; + var M = D.FieldRef.fromString(L); + n[L] = new D.MatchData + } + } + for (s = 0; s < P.length; s++) { + var N = (M = D.FieldRef.fromString(P[s])).docRef; + if (O.contains(N) && !C.contains(N)) { + var j, F = this.fieldVectors[M], + H = r[M.fieldName].similarity(F); + if (void 0 !== (j = I[N])) j.score += H, j.matchData.combine(n[M]); + else { + var q = { + ref: N, + score: H, + matchData: n[M] + }; + I[N] = q, A.push(q) + } + } + } + return A.sort(function(e, t) { + return t.score - e.score + }) + }, D.Index.prototype.toJSON = function() { + var e = Object.keys(this.invertedIndex).sort().map(function(e) { + return [e, this.invertedIndex[e]] + }, this), + t = Object.keys(this.fieldVectors).map(function(e) { + return [e, this.fieldVectors[e].toJSON()] + }, this); + return { + version: D.version, + fields: this.fields, + fieldVectors: t, + invertedIndex: e, + pipeline: this.pipeline.toJSON() + } + }, D.Index.load = function(e) { + var t = {}, + n = {}, + r = e.fieldVectors, + i = Object.create(null), + o = e.invertedIndex, + a = new D.TokenSet.Builder, + s = D.Pipeline.load(e.pipeline); + e.version != D.version && D.utils.warn("Version mismatch when loading serialised index. Current version of lunr '" + D.version + "' does not match serialized index '" + e.version + "'"); + for (var c = 0; c < r.length; c++) { + var l = (f = r[c])[0], + u = f[1]; + n[l] = new D.Vector(u) + } + for (c = 0; c < o.length; c++) { + var f, d = (f = o[c])[0], + h = f[1]; + a.insert(d), i[d] = h + } + return a.finish(), t.fields = e.fields, t.fieldVectors = n, t.invertedIndex = i, t.tokenSet = a.root, t.pipeline = s, new D.Index(t) + }, D.Builder = function() { + this._ref = "id", this._fields = Object.create(null), this._documents = Object.create(null), this.invertedIndex = Object.create(null), this.fieldTermFrequencies = {}, this.fieldLengths = {}, this.tokenizer = D.tokenizer, this.pipeline = new D.Pipeline, this.searchPipeline = new D.Pipeline, this.documentCount = 0, this._b = .75, this._k1 = 1.2, this.termIndex = 0, this.metadataWhitelist = [] + }, D.Builder.prototype.ref = function(e) { + this._ref = e + }, D.Builder.prototype.field = function(e, t) { + if (/\//.test(e)) throw new RangeError("Field '" + e + "' contains illegal character '/'"); + this._fields[e] = t || {} + }, D.Builder.prototype.b = function(e) { + this._b = e < 0 ? 0 : 1 < e ? 1 : e + }, D.Builder.prototype.k1 = function(e) { + this._k1 = e + }, D.Builder.prototype.add = function(e, t) { + var n = e[this._ref], + r = Object.keys(this._fields); + this._documents[n] = t || {}, this.documentCount += 1; + for (var i = 0; i < r.length; i++) { + var o = r[i], + a = this._fields[o].extractor, + s = a ? a(e) : e[o], + c = this.tokenizer(s, { + fields: [o] + }), + l = this.pipeline.run(c), + u = new D.FieldRef(n, o), + f = Object.create(null); + this.fieldTermFrequencies[u] = f, this.fieldLengths[u] = 0, this.fieldLengths[u] += l.length; + for (var d = 0; d < l.length; d++) { + var h = l[d]; + if (null == f[h] && (f[h] = 0), f[h] += 1, null == this.invertedIndex[h]) { + var p = Object.create(null); + p._index = this.termIndex, this.termIndex += 1; + for (var m = 0; m < r.length; m++) p[r[m]] = Object.create(null); + this.invertedIndex[h] = p + } + null == this.invertedIndex[h][o][n] && (this.invertedIndex[h][o][n] = Object.create(null)); + for (var y = 0; y < this.metadataWhitelist.length; y++) { + var v = this.metadataWhitelist[y], + g = h.metadata[v]; + null == this.invertedIndex[h][o][n][v] && (this.invertedIndex[h][o][n][v] = []), this.invertedIndex[h][o][n][v].push(g) + } + } + } + }, D.Builder.prototype.calculateAverageFieldLengths = function() { + for (var e = Object.keys(this.fieldLengths), t = e.length, n = {}, r = {}, i = 0; i < t; i++) { + var o = D.FieldRef.fromString(e[i]), + a = o.fieldName; + r[a] || (r[a] = 0), r[a] += 1, n[a] || (n[a] = 0), n[a] += this.fieldLengths[o] + } + var s = Object.keys(this._fields); + for (i = 0; i < s.length; i++) { + var c = s[i]; + n[c] = n[c] / r[c] + } + this.averageFieldLength = n + }, D.Builder.prototype.createFieldVectors = function() { + for (var e = {}, t = Object.keys(this.fieldTermFrequencies), n = t.length, r = Object.create(null), i = 0; i < n; i++) { + for (var o = D.FieldRef.fromString(t[i]), a = o.fieldName, s = this.fieldLengths[o], c = new D.Vector, l = this.fieldTermFrequencies[o], u = Object.keys(l), f = u.length, d = this._fields[a].boost || 1, h = this._documents[o.docRef].boost || 1, p = 0; p < f; p++) { + var m, y, v, g = u[p], + w = l[g], + _ = this.invertedIndex[g]._index; + void 0 === r[g] ? (m = D.idf(this.invertedIndex[g], this.documentCount), r[g] = m) : m = r[g], y = m * ((this._k1 + 1) * w) / (this._k1 * (1 - this._b + this._b * (s / this.averageFieldLength[a])) + w), y *= d, y *= h, v = Math.round(1e3 * y) / 1e3, c.insert(_, v) + } + e[o] = c + } + this.fieldVectors = e + }, D.Builder.prototype.createTokenSet = function() { + this.tokenSet = D.TokenSet.fromArray(Object.keys(this.invertedIndex).sort()) + }, D.Builder.prototype.build = function() { + return this.calculateAverageFieldLengths(), this.createFieldVectors(), this.createTokenSet(), new D.Index({ + invertedIndex: this.invertedIndex, + fieldVectors: this.fieldVectors, + tokenSet: this.tokenSet, + fields: Object.keys(this._fields), + pipeline: this.searchPipeline + }) + }, D.Builder.prototype.use = function(e) { + var t = Array.prototype.slice.call(arguments, 1); + t.unshift(this), e.apply(this, t) + }, D.MatchData = function(e, t, n) { + for (var r = Object.create(null), i = Object.keys(n || {}), o = 0; o < i.length; o++) { + var a = i[o]; + r[a] = n[a].slice() + } + this.metadata = Object.create(null), void 0 !== e && (this.metadata[e] = Object.create(null), this.metadata[e][t] = r) + }, D.MatchData.prototype.combine = function(e) { + for (var t = Object.keys(e.metadata), n = 0; n < t.length; n++) { + var r = t[n], + i = Object.keys(e.metadata[r]); + null == this.metadata[r] && (this.metadata[r] = Object.create(null)); + for (var o = 0; o < i.length; o++) { + var a = i[o], + s = Object.keys(e.metadata[r][a]); + null == this.metadata[r][a] && (this.metadata[r][a] = Object.create(null)); + for (var c = 0; c < s.length; c++) { + var l = s[c]; + null == this.metadata[r][a][l] ? this.metadata[r][a][l] = e.metadata[r][a][l] : this.metadata[r][a][l] = this.metadata[r][a][l].concat(e.metadata[r][a][l]) + } + } + } + }, D.MatchData.prototype.add = function(e, t, n) { + if (!(e in this.metadata)) return this.metadata[e] = Object.create(null), void(this.metadata[e][t] = n); + if (t in this.metadata[e]) + for (var r = Object.keys(n), i = 0; i < r.length; i++) { + var o = r[i]; + o in this.metadata[e][t] ? this.metadata[e][t][o] = this.metadata[e][t][o].concat(n[o]) : this.metadata[e][t][o] = n[o] + } else this.metadata[e][t] = n + }, D.Query = function(e) { + this.clauses = [], this.allFields = e + }, D.Query.wildcard = new String("*"), D.Query.wildcard.NONE = 0, D.Query.wildcard.LEADING = 1, D.Query.wildcard.TRAILING = 2, D.Query.presence = { + OPTIONAL: 1, + REQUIRED: 2, + PROHIBITED: 3 + }, D.Query.prototype.clause = function(e) { + return "fields" in e || (e.fields = this.allFields), "boost" in e || (e.boost = 1), "usePipeline" in e || (e.usePipeline = !0), "wildcard" in e || (e.wildcard = D.Query.wildcard.NONE), e.wildcard & D.Query.wildcard.LEADING && e.term.charAt(0) != D.Query.wildcard && (e.term = "*" + e.term), e.wildcard & D.Query.wildcard.TRAILING && e.term.slice(-1) != D.Query.wildcard && (e.term = e.term + "*"), "presence" in e || (e.presence = D.Query.presence.OPTIONAL), this.clauses.push(e), this + }, D.Query.prototype.isNegated = function() { + for (var e = 0; e < this.clauses.length; e++) + if (this.clauses[e].presence != D.Query.presence.PROHIBITED) return !1; + return !0 + }, D.Query.prototype.term = function(e, t) { + if (Array.isArray(e)) return e.forEach(function(e) { + this.term(e, D.utils.clone(t)) + }, this), this; + var n = t || {}; + return n.term = e.toString(), this.clause(n), this + }, D.QueryParseError = function(e, t, n) { + this.name = "QueryParseError", this.message = e, this.start = t, this.end = n + }, D.QueryParseError.prototype = new Error, D.QueryLexer = function(e) { + this.lexemes = [], this.str = e, this.length = e.length, this.pos = 0, this.start = 0, this.escapeCharPositions = [] + }, D.QueryLexer.prototype.run = function() { + for (var e = D.QueryLexer.lexText; e;) e = e(this) + }, D.QueryLexer.prototype.sliceString = function() { + for (var e = [], t = this.start, n = this.pos, r = 0; r < this.escapeCharPositions.length; r++) n = this.escapeCharPositions[r], e.push(this.str.slice(t, n)), t = n + 1; + return e.push(this.str.slice(t, this.pos)), this.escapeCharPositions.length = 0, e.join("") + }, D.QueryLexer.prototype.emit = function(e) { + this.lexemes.push({ + type: e, + str: this.sliceString(), + start: this.start, + end: this.pos + }), this.start = this.pos + }, D.QueryLexer.prototype.escapeCharacter = function() { + this.escapeCharPositions.push(this.pos - 1), this.pos += 1 + }, D.QueryLexer.prototype.next = function() { + if (this.pos >= this.length) return D.QueryLexer.EOS; + var e = this.str.charAt(this.pos); + return this.pos += 1, e + }, D.QueryLexer.prototype.width = function() { + return this.pos - this.start + }, D.QueryLexer.prototype.ignore = function() { + this.start == this.pos && (this.pos += 1), this.start = this.pos + }, D.QueryLexer.prototype.backup = function() { + this.pos -= 1 + }, D.QueryLexer.prototype.acceptDigitRun = function() { + for (var e, t; 47 < (t = (e = this.next()).charCodeAt(0)) && t < 58;); + e != D.QueryLexer.EOS && this.backup() + }, D.QueryLexer.prototype.more = function() { + return this.pos < this.length + }, D.QueryLexer.EOS = "EOS", D.QueryLexer.FIELD = "FIELD", D.QueryLexer.TERM = "TERM", D.QueryLexer.EDIT_DISTANCE = "EDIT_DISTANCE", D.QueryLexer.BOOST = "BOOST", D.QueryLexer.PRESENCE = "PRESENCE", D.QueryLexer.lexField = function(e) { + return e.backup(), e.emit(D.QueryLexer.FIELD), e.ignore(), D.QueryLexer.lexText + }, D.QueryLexer.lexTerm = function(e) { + if (1 < e.width() && (e.backup(), e.emit(D.QueryLexer.TERM)), e.ignore(), e.more()) return D.QueryLexer.lexText + }, D.QueryLexer.lexEditDistance = function(e) { + return e.ignore(), e.acceptDigitRun(), e.emit(D.QueryLexer.EDIT_DISTANCE), D.QueryLexer.lexText + }, D.QueryLexer.lexBoost = function(e) { + return e.ignore(), e.acceptDigitRun(), e.emit(D.QueryLexer.BOOST), D.QueryLexer.lexText + }, D.QueryLexer.lexEOS = function(e) { + 0 < e.width() && e.emit(D.QueryLexer.TERM) + }, D.QueryLexer.termSeparator = D.tokenizer.separator, D.QueryLexer.lexText = function(e) { + for (;;) { + var t = e.next(); + if (t == D.QueryLexer.EOS) return D.QueryLexer.lexEOS; + if (92 != t.charCodeAt(0)) { + if (":" == t) return D.QueryLexer.lexField; + if ("~" == t) return e.backup(), 0 < e.width() && e.emit(D.QueryLexer.TERM), D.QueryLexer.lexEditDistance; + if ("^" == t) return e.backup(), 0 < e.width() && e.emit(D.QueryLexer.TERM), D.QueryLexer.lexBoost; + if ("+" == t && 1 === e.width()) return e.emit(D.QueryLexer.PRESENCE), D.QueryLexer.lexText; + if ("-" == t && 1 === e.width()) return e.emit(D.QueryLexer.PRESENCE), D.QueryLexer.lexText; + if (t.match(D.QueryLexer.termSeparator)) return D.QueryLexer.lexTerm + } else e.escapeCharacter() + } + }, D.QueryParser = function(e, t) { + this.lexer = new D.QueryLexer(e), this.query = t, this.currentClause = {}, this.lexemeIdx = 0 + }, D.QueryParser.prototype.parse = function() { + this.lexer.run(), this.lexemes = this.lexer.lexemes; + for (var e = D.QueryParser.parseClause; e;) e = e(this); + return this.query + }, D.QueryParser.prototype.peekLexeme = function() { + return this.lexemes[this.lexemeIdx] + }, D.QueryParser.prototype.consumeLexeme = function() { + var e = this.peekLexeme(); + return this.lexemeIdx += 1, e + }, D.QueryParser.prototype.nextClause = function() { + var e = this.currentClause; + this.query.clause(e), this.currentClause = {} + }, D.QueryParser.parseClause = function(e) { + var t = e.peekLexeme(); + if (null != t) switch (t.type) { + case D.QueryLexer.PRESENCE: + return D.QueryParser.parsePresence; + case D.QueryLexer.FIELD: + return D.QueryParser.parseField; + case D.QueryLexer.TERM: + return D.QueryParser.parseTerm; + default: + var n = "expected either a field or a term, found " + t.type; + throw 1 <= t.str.length && (n += " with value '" + t.str + "'"), new D.QueryParseError(n, t.start, t.end) + } + }, D.QueryParser.parsePresence = function(e) { + var t = e.consumeLexeme(); + if (null != t) { + switch (t.str) { + case "-": + e.currentClause.presence = D.Query.presence.PROHIBITED; + break; + case "+": + e.currentClause.presence = D.Query.presence.REQUIRED; + break; + default: + var n = "unrecognised presence operator'" + t.str + "'"; + throw new D.QueryParseError(n, t.start, t.end) + } + var r = e.peekLexeme(); + if (null == r) { + n = "expecting term or field, found nothing"; + throw new D.QueryParseError(n, t.start, t.end) + } + switch (r.type) { + case D.QueryLexer.FIELD: + return D.QueryParser.parseField; + case D.QueryLexer.TERM: + return D.QueryParser.parseTerm; + default: + n = "expecting term or field, found '" + r.type + "'"; + throw new D.QueryParseError(n, r.start, r.end) + } + } + }, D.QueryParser.parseField = function(e) { + var t = e.consumeLexeme(); + if (null != t) { + if (-1 == e.query.allFields.indexOf(t.str)) { + var n = e.query.allFields.map(function(e) { + return "'" + e + "'" + }).join(", "), + r = "unrecognised field '" + t.str + "', possible fields: " + n; + throw new D.QueryParseError(r, t.start, t.end) + } + e.currentClause.fields = [t.str]; + var i = e.peekLexeme(); + if (null == i) { + r = "expecting term, found nothing"; + throw new D.QueryParseError(r, t.start, t.end) + } + switch (i.type) { + case D.QueryLexer.TERM: + return D.QueryParser.parseTerm; + default: + r = "expecting term, found '" + i.type + "'"; + throw new D.QueryParseError(r, i.start, i.end) + } + } + }, D.QueryParser.parseTerm = function(e) { + var t = e.consumeLexeme(); + if (null != t) { + e.currentClause.term = t.str.toLowerCase(), -1 != t.str.indexOf("*") && (e.currentClause.usePipeline = !1); + var n = e.peekLexeme(); + if (null != n) switch (n.type) { + case D.QueryLexer.TERM: + return e.nextClause(), D.QueryParser.parseTerm; + case D.QueryLexer.FIELD: + return e.nextClause(), D.QueryParser.parseField; + case D.QueryLexer.EDIT_DISTANCE: + return D.QueryParser.parseEditDistance; + case D.QueryLexer.BOOST: + return D.QueryParser.parseBoost; + case D.QueryLexer.PRESENCE: + return e.nextClause(), D.QueryParser.parsePresence; + default: + var r = "Unexpected lexeme type '" + n.type + "'"; + throw new D.QueryParseError(r, n.start, n.end) + } else e.nextClause() + } + }, D.QueryParser.parseEditDistance = function(e) { + var t = e.consumeLexeme(); + if (null != t) { + var n = parseInt(t.str, 10); + if (isNaN(n)) { + var r = "edit distance must be numeric"; + throw new D.QueryParseError(r, t.start, t.end) + } + e.currentClause.editDistance = n; + var i = e.peekLexeme(); + if (null != i) switch (i.type) { + case D.QueryLexer.TERM: + return e.nextClause(), D.QueryParser.parseTerm; + case D.QueryLexer.FIELD: + return e.nextClause(), D.QueryParser.parseField; + case D.QueryLexer.EDIT_DISTANCE: + return D.QueryParser.parseEditDistance; + case D.QueryLexer.BOOST: + return D.QueryParser.parseBoost; + case D.QueryLexer.PRESENCE: + return e.nextClause(), D.QueryParser.parsePresence; + default: + r = "Unexpected lexeme type '" + i.type + "'"; + throw new D.QueryParseError(r, i.start, i.end) + } else e.nextClause() + } + }, D.QueryParser.parseBoost = function(e) { + var t = e.consumeLexeme(); + if (null != t) { + var n = parseInt(t.str, 10); + if (isNaN(n)) { + var r = "boost must be numeric"; + throw new D.QueryParseError(r, t.start, t.end) + } + e.currentClause.boost = n; + var i = e.peekLexeme(); + if (null != i) switch (i.type) { + case D.QueryLexer.TERM: + return e.nextClause(), D.QueryParser.parseTerm; + case D.QueryLexer.FIELD: + return e.nextClause(), D.QueryParser.parseField; + case D.QueryLexer.EDIT_DISTANCE: + return D.QueryParser.parseEditDistance; + case D.QueryLexer.BOOST: + return D.QueryParser.parseBoost; + case D.QueryLexer.PRESENCE: + return e.nextClause(), D.QueryParser.parsePresence; + default: + r = "Unexpected lexeme type '" + i.type + "'"; + throw new D.QueryParseError(r, i.start, i.end) + } else e.nextClause() + } + }, void 0 === (c = "function" == typeof(s = function() { + return D + }) ? s.call(o, a, o, i) : s) || (i.exports = c) + }() +}])); \ No newline at end of file diff --git a/docs/build/_static/javascripts/lunr/lunr.da.js b/docs/build/_static/javascripts/lunr/lunr.da.js new file mode 100644 index 0000000..34910df --- /dev/null +++ b/docs/build/_static/javascripts/lunr/lunr.da.js @@ -0,0 +1 @@ +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. 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is ja je kan kon kunnen maar me meer men met mij mijn moet na naar niet niets nog nu of om omdat onder ons ook op over reeds te tegen toch toen tot u uit uw van veel voor want waren was wat werd wezen wie wil worden wordt zal ze zelf zich zij zijn zo zonder zou".split(" ")),e.Pipeline.registerFunction(e.du.stopWordFilter,"stopWordFilter-du")}}); \ No newline at end of file diff --git a/docs/build/_static/javascripts/lunr/lunr.es.js b/docs/build/_static/javascripts/lunr/lunr.es.js new file mode 100644 index 0000000..9de6c09 --- /dev/null +++ b/docs/build/_static/javascripts/lunr/lunr.es.js @@ -0,0 +1 @@ +!function(e,s){"function"==typeof define&&define.amd?define(s):"object"==typeof exports?module.exports=s():s()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. 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\ No newline at end of file diff --git a/docs/build/_static/javascripts/lunr/lunr.no.js b/docs/build/_static/javascripts/lunr/lunr.no.js new file mode 100644 index 0000000..3d156b9 --- /dev/null +++ b/docs/build/_static/javascripts/lunr/lunr.no.js @@ -0,0 +1 @@ +!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. 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Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. 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node, doc ) { doc = doc || document; - var script = doc.createElement( "script" ); + var i, val, + script = doc.createElement( "script" ); script.text = code; + if ( node ) { + for ( i in preservedScriptAttributes ) { + + // Support: Firefox 64+, Edge 18+ + // Some browsers don't support the "nonce" property on scripts. + // On the other hand, just using `getAttribute` is not enough as + // the `nonce` attribute is reset to an empty string whenever it + // becomes browsing-context connected. + // See https://github.com/whatwg/html/issues/2369 + // See https://html.spec.whatwg.org/#nonce-attributes + // The `node.getAttribute` check was added for the sake of + // `jQuery.globalEval` so that it can fake a nonce-containing node + // via an object. + val = node[ i ] || node.getAttribute && node.getAttribute( i ); + if ( val ) { + script.setAttribute( i, val ); + } + } + } doc.head.appendChild( script ).parentNode.removeChild( script ); } + + +function toType( obj ) { + if ( obj == null ) { + return obj + ""; + } + + // Support: Android <=2.3 only (functionish RegExp) + return typeof obj === "object" || typeof obj === "function" ? + class2type[ toString.call( obj ) ] || "object" : + typeof obj; +} /* global Symbol */ // Defining this global in .eslintrc.json would create a danger of using the global // unguarded in another place, it seems safer to define global only for this module @@ -88,7 +147,7 @@ var support = {}; var - version = "3.2.1", + version = "3.5.1", // Define a local copy of jQuery jQuery = function( selector, context ) { @@ -96,19 +155,6 @@ var // The jQuery object is actually just the init constructor 'enhanced' // Need init if jQuery is called (just allow error to be thrown if not included) return new jQuery.fn.init( selector, context ); - }, - - // Support: Android <=4.0 only - // Make sure we trim BOM and NBSP - rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, - - // Matches dashed string for camelizing - rmsPrefix = /^-ms-/, - rdashAlpha = /-([a-z])/g, - - // Used by jQuery.camelCase as callback to replace() - fcamelCase = function( all, letter ) { - return letter.toUpperCase(); }; jQuery.fn = jQuery.prototype = { @@ -175,6 +221,18 @@ jQuery.fn = jQuery.prototype = { return this.eq( -1 ); }, + even: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return ( i + 1 ) % 2; + } ) ); + }, + + odd: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return i % 2; + } ) ); + }, + eq: function( i ) { var len = this.length, j = +i + ( i < 0 ? len : 0 ); @@ -209,7 +267,7 @@ jQuery.extend = jQuery.fn.extend = function() { } // Handle case when target is a string or something (possible in deep copy) - if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { + if ( typeof target !== "object" && !isFunction( target ) ) { target = {}; } @@ -226,25 +284,28 @@ jQuery.extend = jQuery.fn.extend = function() { // Extend the base object for ( name in options ) { - src = target[ name ]; copy = options[ name ]; + // Prevent Object.prototype pollution // Prevent never-ending loop - if ( target === copy ) { + if ( name === "__proto__" || target === copy ) { continue; } // Recurse if we're merging plain objects or arrays if ( deep && copy && ( jQuery.isPlainObject( copy ) || ( copyIsArray = Array.isArray( copy ) ) ) ) { + src = target[ name ]; - if ( copyIsArray ) { - copyIsArray = false; - clone = src && Array.isArray( src ) ? src : []; - + // Ensure proper type for the source value + if ( copyIsArray && !Array.isArray( src ) ) { + clone = []; + } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) { + clone = {}; } else { - clone = src && jQuery.isPlainObject( src ) ? src : {}; + clone = src; } + copyIsArray = false; // Never move original objects, clone them target[ name ] = jQuery.extend( deep, clone, copy ); @@ -275,28 +336,6 @@ jQuery.extend( { noop: function() {}, - isFunction: function( obj ) { - return jQuery.type( obj ) === "function"; - }, - - isWindow: function( obj ) { - return obj != null && obj === obj.window; - }, - - isNumeric: function( obj ) { - - // As of jQuery 3.0, isNumeric is limited to - // strings and numbers (primitives or objects) - // that can be coerced to finite numbers (gh-2662) - var type = jQuery.type( obj ); - return ( type === "number" || type === "string" ) && - - // parseFloat NaNs numeric-cast false positives ("") - // ...but misinterprets leading-number strings, particularly hex literals ("0x...") - // subtraction forces infinities to NaN - !isNaN( obj - parseFloat( obj ) ); - }, - isPlainObject: function( obj ) { var proto, Ctor; @@ -319,9 +358,6 @@ jQuery.extend( { }, isEmptyObject: function( obj ) { - - /* eslint-disable no-unused-vars */ - // See https://github.com/eslint/eslint/issues/6125 var name; for ( name in obj ) { @@ -330,27 +366,10 @@ jQuery.extend( { return true; }, - type: function( obj ) { - if ( obj == null ) { - return obj + ""; - } - - // Support: Android <=2.3 only (functionish RegExp) - return typeof obj === "object" || typeof obj === "function" ? - class2type[ toString.call( obj ) ] || "object" : - typeof obj; - }, - - // Evaluates a script in a global context - globalEval: function( code ) { - DOMEval( code ); - }, - - // Convert dashed to camelCase; used by the css and data modules - // Support: IE <=9 - 11, Edge 12 - 13 - // Microsoft forgot to hump their vendor prefix (#9572) - camelCase: function( string ) { - return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); + // Evaluates a script in a provided context; falls back to the global one + // if not specified. + globalEval: function( code, options, doc ) { + DOMEval( code, { nonce: options && options.nonce }, doc ); }, each: function( obj, callback ) { @@ -374,13 +393,6 @@ jQuery.extend( { return obj; }, - // Support: Android <=4.0 only - trim: function( text ) { - return text == null ? - "" : - ( text + "" ).replace( rtrim, "" ); - }, - // results is for internal usage only makeArray: function( arr, results ) { var ret = results || []; @@ -467,43 +479,12 @@ jQuery.extend( { } // Flatten any nested arrays - return concat.apply( [], ret ); + return flat( ret ); }, // A global GUID counter for objects guid: 1, - // Bind a function to a context, optionally partially applying any - // arguments. - proxy: function( fn, context ) { - var tmp, args, proxy; - - if ( typeof context === "string" ) { - tmp = fn[ context ]; - context = fn; - fn = tmp; - } - - // Quick check to determine if target is callable, in the spec - // this throws a TypeError, but we will just return undefined. - if ( !jQuery.isFunction( fn ) ) { - return undefined; - } - - // Simulated bind - args = slice.call( arguments, 2 ); - proxy = function() { - return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); - }; - - // Set the guid of unique handler to the same of original handler, so it can be removed - proxy.guid = fn.guid = fn.guid || jQuery.guid++; - - return proxy; - }, - - now: Date.now, - // jQuery.support is not used in Core but other projects attach their // properties to it so it needs to exist. support: support @@ -515,7 +496,7 @@ if ( typeof Symbol === "function" ) { // Populate the class2type map jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), -function( i, name ) { +function( _i, name ) { class2type[ "[object " + name + "]" ] = name.toLowerCase(); } ); @@ -526,9 +507,9 @@ function isArrayLike( obj ) { // hasOwn isn't used here due to false negatives // regarding Nodelist length in IE var length = !!obj && "length" in obj && obj.length, - type = jQuery.type( obj ); + type = toType( obj ); - if ( type === "function" || jQuery.isWindow( obj ) ) { + if ( isFunction( obj ) || isWindow( obj ) ) { return false; } @@ -537,17 +518,16 @@ function isArrayLike( obj ) { } var Sizzle = /*! - * Sizzle CSS Selector Engine v2.3.3 + * Sizzle CSS Selector Engine v2.3.5 * https://sizzlejs.com/ * - * Copyright jQuery Foundation and other contributors + * Copyright JS Foundation and other contributors * Released under the MIT license - * http://jquery.org/license + * https://js.foundation/ * - * Date: 2016-08-08 + * Date: 2020-03-14 */ -(function( window ) { - +( function( window ) { var i, support, Expr, @@ -578,6 +558,7 @@ var i, classCache = createCache(), tokenCache = createCache(), compilerCache = createCache(), + nonnativeSelectorCache = createCache(), sortOrder = function( a, b ) { if ( a === b ) { hasDuplicate = true; @@ -586,61 +567,71 @@ var i, }, // Instance methods - hasOwn = ({}).hasOwnProperty, + hasOwn = ( {} ).hasOwnProperty, arr = [], pop = arr.pop, - push_native = arr.push, + pushNative = arr.push, push = arr.push, slice = arr.slice, + // Use a stripped-down indexOf as it's faster than native // https://jsperf.com/thor-indexof-vs-for/5 indexOf = function( list, elem ) { var i = 0, len = list.length; for ( ; i < len; i++ ) { - if ( list[i] === elem ) { + if ( list[ i ] === elem ) { return i; } } return -1; }, - booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" + + "ismap|loop|multiple|open|readonly|required|scoped", // Regular expressions // http://www.w3.org/TR/css3-selectors/#whitespace whitespace = "[\\x20\\t\\r\\n\\f]", - // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier - identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+", + // https://www.w3.org/TR/css-syntax-3/#ident-token-diagram + identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace + + "?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+", // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + + // Operator (capture 2) "*([*^$|!~]?=)" + whitespace + - // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" - "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + - "*\\]", + + // "Attribute values must be CSS identifiers [capture 5] + // or strings [capture 3 or capture 4]" + "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + + whitespace + "*\\]", pseudos = ":(" + identifier + ")(?:\\((" + + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: // 1. quoted (capture 3; capture 4 or capture 5) "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + + // 2. simple (capture 6) "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + + // 3. anything else (capture 2) ".*" + ")\\)|)", // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter rwhitespace = new RegExp( whitespace + "+", "g" ), - rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + + whitespace + "+$", "g" ), rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), - rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), - - rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + + "*" ), + rdescend = new RegExp( whitespace + "|>" ), rpseudo = new RegExp( pseudos ), ridentifier = new RegExp( "^" + identifier + "$" ), @@ -651,16 +642,19 @@ var i, "TAG": new RegExp( "^(" + identifier + "|[*])" ), "ATTR": new RegExp( "^" + attributes ), "PSEUDO": new RegExp( "^" + pseudos ), - "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + - "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + - "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + // For use in libraries implementing .is() // We use this for POS matching in `select` - "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + - whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + "needsContext": new RegExp( "^" + whitespace + + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) }, + rhtml = /HTML$/i, rinputs = /^(?:input|select|textarea|button)$/i, rheader = /^h\d$/i, @@ -673,18 +667,21 @@ var i, // CSS escapes // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters - runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), - funescape = function( _, escaped, escapedWhitespace ) { - var high = "0x" + escaped - 0x10000; - // NaN means non-codepoint - // Support: Firefox<24 - // Workaround erroneous numeric interpretation of +"0x" - return high !== high || escapedWhitespace ? - escaped : + runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ), + funescape = function( escape, nonHex ) { + var high = "0x" + escape.slice( 1 ) - 0x10000; + + return nonHex ? + + // Strip the backslash prefix from a non-hex escape sequence + nonHex : + + // Replace a hexadecimal escape sequence with the encoded Unicode code point + // Support: IE <=11+ + // For values outside the Basic Multilingual Plane (BMP), manually construct a + // surrogate pair high < 0 ? - // BMP codepoint String.fromCharCode( high + 0x10000 ) : - // Supplemental Plane codepoint (surrogate pair) String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); }, @@ -700,7 +697,8 @@ var i, } // Control characters and (dependent upon position) numbers get escaped as code points - return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; + return ch.slice( 0, -1 ) + "\\" + + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; } // Other potentially-special ASCII characters get backslash-escaped @@ -715,9 +713,9 @@ var i, setDocument(); }, - disabledAncestor = addCombinator( + inDisabledFieldset = addCombinator( function( elem ) { - return elem.disabled === true && ("form" in elem || "label" in elem); + return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset"; }, { dir: "parentNode", next: "legend" } ); @@ -725,18 +723,20 @@ var i, // Optimize for push.apply( _, NodeList ) try { push.apply( - (arr = slice.call( preferredDoc.childNodes )), + ( arr = slice.call( preferredDoc.childNodes ) ), preferredDoc.childNodes ); + // Support: Android<4.0 // Detect silently failing push.apply + // eslint-disable-next-line no-unused-expressions arr[ preferredDoc.childNodes.length ].nodeType; } catch ( e ) { push = { apply: arr.length ? // Leverage slice if possible function( target, els ) { - push_native.apply( target, slice.call(els) ); + pushNative.apply( target, slice.call( els ) ); } : // Support: IE<9 @@ -744,8 +744,9 @@ try { function( target, els ) { var j = target.length, i = 0; + // Can't trust NodeList.length - while ( (target[j++] = els[i++]) ) {} + while ( ( target[ j++ ] = els[ i++ ] ) ) {} target.length = j - 1; } }; @@ -769,24 +770,21 @@ function Sizzle( selector, context, results, seed ) { // Try to shortcut find operations (as opposed to filters) in HTML documents if ( !seed ) { - - if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { - setDocument( context ); - } + setDocument( context ); context = context || document; if ( documentIsHTML ) { // If the selector is sufficiently simple, try using a "get*By*" DOM method // (excepting DocumentFragment context, where the methods don't exist) - if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { + if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) { // ID selector - if ( (m = match[1]) ) { + if ( ( m = match[ 1 ] ) ) { // Document context if ( nodeType === 9 ) { - if ( (elem = context.getElementById( m )) ) { + if ( ( elem = context.getElementById( m ) ) ) { // Support: IE, Opera, Webkit // TODO: identify versions @@ -805,7 +803,7 @@ function Sizzle( selector, context, results, seed ) { // Support: IE, Opera, Webkit // TODO: identify versions // getElementById can match elements by name instead of ID - if ( newContext && (elem = newContext.getElementById( m )) && + if ( newContext && ( elem = newContext.getElementById( m ) ) && contains( context, elem ) && elem.id === m ) { @@ -815,12 +813,12 @@ function Sizzle( selector, context, results, seed ) { } // Type selector - } else if ( match[2] ) { + } else if ( match[ 2 ] ) { push.apply( results, context.getElementsByTagName( selector ) ); return results; // Class selector - } else if ( (m = match[3]) && support.getElementsByClassName && + } else if ( ( m = match[ 3 ] ) && support.getElementsByClassName && context.getElementsByClassName ) { push.apply( results, context.getElementsByClassName( m ) ); @@ -830,50 +828,62 @@ function Sizzle( selector, context, results, seed ) { // Take advantage of querySelectorAll if ( support.qsa && - !compilerCache[ selector + " " ] && - (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { - - if ( nodeType !== 1 ) { - newContext = context; - newSelector = selector; + !nonnativeSelectorCache[ selector + " " ] && + ( !rbuggyQSA || !rbuggyQSA.test( selector ) ) && - // qSA looks outside Element context, which is not what we want - // Thanks to Andrew Dupont for this workaround technique - // Support: IE <=8 + // Support: IE 8 only // Exclude object elements - } else if ( context.nodeName.toLowerCase() !== "object" ) { + ( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) { - // Capture the context ID, setting it first if necessary - if ( (nid = context.getAttribute( "id" )) ) { - nid = nid.replace( rcssescape, fcssescape ); - } else { - context.setAttribute( "id", (nid = expando) ); + newSelector = selector; + newContext = context; + + // qSA considers elements outside a scoping root when evaluating child or + // descendant combinators, which is not what we want. + // In such cases, we work around the behavior by prefixing every selector in the + // list with an ID selector referencing the scope context. + // The technique has to be used as well when a leading combinator is used + // as such selectors are not recognized by querySelectorAll. + // Thanks to Andrew Dupont for this technique. + if ( nodeType === 1 && + ( rdescend.test( selector ) || rcombinators.test( selector ) ) ) { + + // Expand context for sibling selectors + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || + context; + + // We can use :scope instead of the ID hack if the browser + // supports it & if we're not changing the context. + if ( newContext !== context || !support.scope ) { + + // Capture the context ID, setting it first if necessary + if ( ( nid = context.getAttribute( "id" ) ) ) { + nid = nid.replace( rcssescape, fcssescape ); + } else { + context.setAttribute( "id", ( nid = expando ) ); + } } // Prefix every selector in the list groups = tokenize( selector ); i = groups.length; while ( i-- ) { - groups[i] = "#" + nid + " " + toSelector( groups[i] ); + groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " + + toSelector( groups[ i ] ); } newSelector = groups.join( "," ); - - // Expand context for sibling selectors - newContext = rsibling.test( selector ) && testContext( context.parentNode ) || - context; } - if ( newSelector ) { - try { - push.apply( results, - newContext.querySelectorAll( newSelector ) - ); - return results; - } catch ( qsaError ) { - } finally { - if ( nid === expando ) { - context.removeAttribute( "id" ); - } + try { + push.apply( results, + newContext.querySelectorAll( newSelector ) + ); + return results; + } catch ( qsaError ) { + nonnativeSelectorCache( selector, true ); + } finally { + if ( nid === expando ) { + context.removeAttribute( "id" ); } } } @@ -894,12 +904,14 @@ function createCache() { var keys = []; function cache( key, value ) { + // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) if ( keys.push( key + " " ) > Expr.cacheLength ) { + // Only keep the most recent entries delete cache[ keys.shift() ]; } - return (cache[ key + " " ] = value); + return ( cache[ key + " " ] = value ); } return cache; } @@ -918,17 +930,19 @@ function markFunction( fn ) { * @param {Function} fn Passed the created element and returns a boolean result */ function assert( fn ) { - var el = document.createElement("fieldset"); + var el = document.createElement( "fieldset" ); try { return !!fn( el ); - } catch (e) { + } catch ( e ) { return false; } finally { + // Remove from its parent by default if ( el.parentNode ) { el.parentNode.removeChild( el ); } + // release memory in IE el = null; } @@ -940,11 +954,11 @@ function assert( fn ) { * @param {Function} handler The method that will be applied */ function addHandle( attrs, handler ) { - var arr = attrs.split("|"), + var arr = attrs.split( "|" ), i = arr.length; while ( i-- ) { - Expr.attrHandle[ arr[i] ] = handler; + Expr.attrHandle[ arr[ i ] ] = handler; } } @@ -966,7 +980,7 @@ function siblingCheck( a, b ) { // Check if b follows a if ( cur ) { - while ( (cur = cur.nextSibling) ) { + while ( ( cur = cur.nextSibling ) ) { if ( cur === b ) { return -1; } @@ -994,7 +1008,7 @@ function createInputPseudo( type ) { function createButtonPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); - return (name === "input" || name === "button") && elem.type === type; + return ( name === "input" || name === "button" ) && elem.type === type; }; } @@ -1037,7 +1051,7 @@ function createDisabledPseudo( disabled ) { // Where there is no isDisabled, check manually /* jshint -W018 */ elem.isDisabled !== !disabled && - disabledAncestor( elem ) === disabled; + inDisabledFieldset( elem ) === disabled; } return elem.disabled === disabled; @@ -1059,21 +1073,21 @@ function createDisabledPseudo( disabled ) { * @param {Function} fn */ function createPositionalPseudo( fn ) { - return markFunction(function( argument ) { + return markFunction( function( argument ) { argument = +argument; - return markFunction(function( seed, matches ) { + return markFunction( function( seed, matches ) { var j, matchIndexes = fn( [], seed.length, argument ), i = matchIndexes.length; // Match elements found at the specified indexes while ( i-- ) { - if ( seed[ (j = matchIndexes[i]) ] ) { - seed[j] = !(matches[j] = seed[j]); + if ( seed[ ( j = matchIndexes[ i ] ) ] ) { + seed[ j ] = !( matches[ j ] = seed[ j ] ); } } - }); - }); + } ); + } ); } /** @@ -1094,10 +1108,13 @@ support = Sizzle.support = {}; * @returns {Boolean} True iff elem is a non-HTML XML node */ isXML = Sizzle.isXML = function( elem ) { - // documentElement is verified for cases where it doesn't yet exist - // (such as loading iframes in IE - #4833) - var documentElement = elem && (elem.ownerDocument || elem).documentElement; - return documentElement ? documentElement.nodeName !== "HTML" : false; + var namespace = elem.namespaceURI, + docElem = ( elem.ownerDocument || elem ).documentElement; + + // Support: IE <=8 + // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes + // https://bugs.jquery.com/ticket/4833 + return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" ); }; /** @@ -1110,7 +1127,11 @@ setDocument = Sizzle.setDocument = function( node ) { doc = node ? node.ownerDocument || node : preferredDoc; // Return early if doc is invalid or already selected - if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) { return document; } @@ -1119,10 +1140,14 @@ setDocument = Sizzle.setDocument = function( node ) { docElem = document.documentElement; documentIsHTML = !isXML( document ); - // Support: IE 9-11, Edge + // Support: IE 9 - 11+, Edge 12 - 18+ // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) - if ( preferredDoc !== document && - (subWindow = document.defaultView) && subWindow.top !== subWindow ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( preferredDoc != document && + ( subWindow = document.defaultView ) && subWindow.top !== subWindow ) { // Support: IE 11, Edge if ( subWindow.addEventListener ) { @@ -1134,25 +1159,36 @@ setDocument = Sizzle.setDocument = function( node ) { } } + // Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only, + // Safari 4 - 5 only, Opera <=11.6 - 12.x only + // IE/Edge & older browsers don't support the :scope pseudo-class. + // Support: Safari 6.0 only + // Safari 6.0 supports :scope but it's an alias of :root there. + support.scope = assert( function( el ) { + docElem.appendChild( el ).appendChild( document.createElement( "div" ) ); + return typeof el.querySelectorAll !== "undefined" && + !el.querySelectorAll( ":scope fieldset div" ).length; + } ); + /* Attributes ---------------------------------------------------------------------- */ // Support: IE<8 // Verify that getAttribute really returns attributes and not properties // (excepting IE8 booleans) - support.attributes = assert(function( el ) { + support.attributes = assert( function( el ) { el.className = "i"; - return !el.getAttribute("className"); - }); + return !el.getAttribute( "className" ); + } ); /* getElement(s)By* ---------------------------------------------------------------------- */ // Check if getElementsByTagName("*") returns only elements - support.getElementsByTagName = assert(function( el ) { - el.appendChild( document.createComment("") ); - return !el.getElementsByTagName("*").length; - }); + support.getElementsByTagName = assert( function( el ) { + el.appendChild( document.createComment( "" ) ); + return !el.getElementsByTagName( "*" ).length; + } ); // Support: IE<9 support.getElementsByClassName = rnative.test( document.getElementsByClassName ); @@ -1161,38 +1197,38 @@ setDocument = Sizzle.setDocument = function( node ) { // Check if getElementById returns elements by name // The broken getElementById methods don't pick up programmatically-set names, // so use a roundabout getElementsByName test - support.getById = assert(function( el ) { + support.getById = assert( function( el ) { docElem.appendChild( el ).id = expando; return !document.getElementsByName || !document.getElementsByName( expando ).length; - }); + } ); // ID filter and find if ( support.getById ) { - Expr.filter["ID"] = function( id ) { + Expr.filter[ "ID" ] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { - return elem.getAttribute("id") === attrId; + return elem.getAttribute( "id" ) === attrId; }; }; - Expr.find["ID"] = function( id, context ) { + Expr.find[ "ID" ] = function( id, context ) { if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { var elem = context.getElementById( id ); return elem ? [ elem ] : []; } }; } else { - Expr.filter["ID"] = function( id ) { + Expr.filter[ "ID" ] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { var node = typeof elem.getAttributeNode !== "undefined" && - elem.getAttributeNode("id"); + elem.getAttributeNode( "id" ); return node && node.value === attrId; }; }; // Support: IE 6 - 7 only // getElementById is not reliable as a find shortcut - Expr.find["ID"] = function( id, context ) { + Expr.find[ "ID" ] = function( id, context ) { if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { var node, i, elems, elem = context.getElementById( id ); @@ -1200,7 +1236,7 @@ setDocument = Sizzle.setDocument = function( node ) { if ( elem ) { // Verify the id attribute - node = elem.getAttributeNode("id"); + node = elem.getAttributeNode( "id" ); if ( node && node.value === id ) { return [ elem ]; } @@ -1208,8 +1244,8 @@ setDocument = Sizzle.setDocument = function( node ) { // Fall back on getElementsByName elems = context.getElementsByName( id ); i = 0; - while ( (elem = elems[i++]) ) { - node = elem.getAttributeNode("id"); + while ( ( elem = elems[ i++ ] ) ) { + node = elem.getAttributeNode( "id" ); if ( node && node.value === id ) { return [ elem ]; } @@ -1222,7 +1258,7 @@ setDocument = Sizzle.setDocument = function( node ) { } // Tag - Expr.find["TAG"] = support.getElementsByTagName ? + Expr.find[ "TAG" ] = support.getElementsByTagName ? function( tag, context ) { if ( typeof context.getElementsByTagName !== "undefined" ) { return context.getElementsByTagName( tag ); @@ -1237,12 +1273,13 @@ setDocument = Sizzle.setDocument = function( node ) { var elem, tmp = [], i = 0, + // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too results = context.getElementsByTagName( tag ); // Filter out possible comments if ( tag === "*" ) { - while ( (elem = results[i++]) ) { + while ( ( elem = results[ i++ ] ) ) { if ( elem.nodeType === 1 ) { tmp.push( elem ); } @@ -1254,7 +1291,7 @@ setDocument = Sizzle.setDocument = function( node ) { }; // Class - Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { + Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) { if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { return context.getElementsByClassName( className ); } @@ -1275,10 +1312,14 @@ setDocument = Sizzle.setDocument = function( node ) { // See https://bugs.jquery.com/ticket/13378 rbuggyQSA = []; - if ( (support.qsa = rnative.test( document.querySelectorAll )) ) { + if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) { + // Build QSA regex // Regex strategy adopted from Diego Perini - assert(function( el ) { + assert( function( el ) { + + var input; + // Select is set to empty string on purpose // This is to test IE's treatment of not explicitly // setting a boolean content attribute, @@ -1292,78 +1333,98 @@ setDocument = Sizzle.setDocument = function( node ) { // Nothing should be selected when empty strings follow ^= or $= or *= // The test attribute must be unknown in Opera but "safe" for WinRT // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section - if ( el.querySelectorAll("[msallowcapture^='']").length ) { + if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) { rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); } // Support: IE8 // Boolean attributes and "value" are not treated correctly - if ( !el.querySelectorAll("[selected]").length ) { + if ( !el.querySelectorAll( "[selected]" ).length ) { rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); } // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { - rbuggyQSA.push("~="); + rbuggyQSA.push( "~=" ); + } + + // Support: IE 11+, Edge 15 - 18+ + // IE 11/Edge don't find elements on a `[name='']` query in some cases. + // Adding a temporary attribute to the document before the selection works + // around the issue. + // Interestingly, IE 10 & older don't seem to have the issue. + input = document.createElement( "input" ); + input.setAttribute( "name", "" ); + el.appendChild( input ); + if ( !el.querySelectorAll( "[name='']" ).length ) { + rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" + + whitespace + "*(?:''|\"\")" ); } // Webkit/Opera - :checked should return selected option elements // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked // IE8 throws error here and will not see later tests - if ( !el.querySelectorAll(":checked").length ) { - rbuggyQSA.push(":checked"); + if ( !el.querySelectorAll( ":checked" ).length ) { + rbuggyQSA.push( ":checked" ); } // Support: Safari 8+, iOS 8+ // https://bugs.webkit.org/show_bug.cgi?id=136851 // In-page `selector#id sibling-combinator selector` fails if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { - rbuggyQSA.push(".#.+[+~]"); + rbuggyQSA.push( ".#.+[+~]" ); } - }); - assert(function( el ) { + // Support: Firefox <=3.6 - 5 only + // Old Firefox doesn't throw on a badly-escaped identifier. + el.querySelectorAll( "\\\f" ); + rbuggyQSA.push( "[\\r\\n\\f]" ); + } ); + + assert( function( el ) { el.innerHTML = "" + ""; // Support: Windows 8 Native Apps // The type and name attributes are restricted during .innerHTML assignment - var input = document.createElement("input"); + var input = document.createElement( "input" ); input.setAttribute( "type", "hidden" ); el.appendChild( input ).setAttribute( "name", "D" ); // Support: IE8 // Enforce case-sensitivity of name attribute - if ( el.querySelectorAll("[name=d]").length ) { + if ( el.querySelectorAll( "[name=d]" ).length ) { rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); } // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) // IE8 throws error here and will not see later tests - if ( el.querySelectorAll(":enabled").length !== 2 ) { + if ( el.querySelectorAll( ":enabled" ).length !== 2 ) { rbuggyQSA.push( ":enabled", ":disabled" ); } // Support: IE9-11+ // IE's :disabled selector does not pick up the children of disabled fieldsets docElem.appendChild( el ).disabled = true; - if ( el.querySelectorAll(":disabled").length !== 2 ) { + if ( el.querySelectorAll( ":disabled" ).length !== 2 ) { rbuggyQSA.push( ":enabled", ":disabled" ); } + // Support: Opera 10 - 11 only // Opera 10-11 does not throw on post-comma invalid pseudos - el.querySelectorAll("*,:x"); - rbuggyQSA.push(",.*:"); - }); + el.querySelectorAll( "*,:x" ); + rbuggyQSA.push( ",.*:" ); + } ); } - if ( (support.matchesSelector = rnative.test( (matches = docElem.matches || + if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches || docElem.webkitMatchesSelector || docElem.mozMatchesSelector || docElem.oMatchesSelector || - docElem.msMatchesSelector) )) ) { + docElem.msMatchesSelector ) ) ) ) { + + assert( function( el ) { - assert(function( el ) { // Check to see if it's possible to do matchesSelector // on a disconnected node (IE 9) support.disconnectedMatch = matches.call( el, "*" ); @@ -1372,11 +1433,11 @@ setDocument = Sizzle.setDocument = function( node ) { // Gecko does not error, returns false instead matches.call( el, "[s!='']:x" ); rbuggyMatches.push( "!=", pseudos ); - }); + } ); } - rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); - rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) ); /* Contains ---------------------------------------------------------------------- */ @@ -1393,11 +1454,11 @@ setDocument = Sizzle.setDocument = function( node ) { adown.contains ? adown.contains( bup ) : a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 - )); + ) ); } : function( a, b ) { if ( b ) { - while ( (b = b.parentNode) ) { + while ( ( b = b.parentNode ) ) { if ( b === a ) { return true; } @@ -1426,7 +1487,11 @@ setDocument = Sizzle.setDocument = function( node ) { } // Calculate position if both inputs belong to the same document - compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ? a.compareDocumentPosition( b ) : // Otherwise we know they are disconnected @@ -1434,13 +1499,24 @@ setDocument = Sizzle.setDocument = function( node ) { // Disconnected nodes if ( compare & 1 || - (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { + ( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) { // Choose the first element that is related to our preferred document - if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( a == document || a.ownerDocument == preferredDoc && + contains( preferredDoc, a ) ) { return -1; } - if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( b == document || b.ownerDocument == preferredDoc && + contains( preferredDoc, b ) ) { return 1; } @@ -1453,6 +1529,7 @@ setDocument = Sizzle.setDocument = function( node ) { return compare & 4 ? -1 : 1; } : function( a, b ) { + // Exit early if the nodes are identical if ( a === b ) { hasDuplicate = true; @@ -1468,8 +1545,14 @@ setDocument = Sizzle.setDocument = function( node ) { // Parentless nodes are either documents or disconnected if ( !aup || !bup ) { - return a === document ? -1 : - b === document ? 1 : + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + return a == document ? -1 : + b == document ? 1 : + /* eslint-enable eqeqeq */ aup ? -1 : bup ? 1 : sortInput ? @@ -1483,26 +1566,32 @@ setDocument = Sizzle.setDocument = function( node ) { // Otherwise we need full lists of their ancestors for comparison cur = a; - while ( (cur = cur.parentNode) ) { + while ( ( cur = cur.parentNode ) ) { ap.unshift( cur ); } cur = b; - while ( (cur = cur.parentNode) ) { + while ( ( cur = cur.parentNode ) ) { bp.unshift( cur ); } // Walk down the tree looking for a discrepancy - while ( ap[i] === bp[i] ) { + while ( ap[ i ] === bp[ i ] ) { i++; } return i ? + // Do a sibling check if the nodes have a common ancestor - siblingCheck( ap[i], bp[i] ) : + siblingCheck( ap[ i ], bp[ i ] ) : // Otherwise nodes in our document sort first - ap[i] === preferredDoc ? -1 : - bp[i] === preferredDoc ? 1 : + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + ap[ i ] == preferredDoc ? -1 : + bp[ i ] == preferredDoc ? 1 : + /* eslint-enable eqeqeq */ 0; }; @@ -1514,16 +1603,10 @@ Sizzle.matches = function( expr, elements ) { }; Sizzle.matchesSelector = function( elem, expr ) { - // Set document vars if needed - if ( ( elem.ownerDocument || elem ) !== document ) { - setDocument( elem ); - } - - // Make sure that attribute selectors are quoted - expr = expr.replace( rattributeQuotes, "='$1']" ); + setDocument( elem ); if ( support.matchesSelector && documentIsHTML && - !compilerCache[ expr + " " ] && + !nonnativeSelectorCache[ expr + " " ] && ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { @@ -1532,32 +1615,46 @@ Sizzle.matchesSelector = function( elem, expr ) { // IE 9's matchesSelector returns false on disconnected nodes if ( ret || support.disconnectedMatch || - // As well, disconnected nodes are said to be in a document - // fragment in IE 9 - elem.document && elem.document.nodeType !== 11 ) { + + // As well, disconnected nodes are said to be in a document + // fragment in IE 9 + elem.document && elem.document.nodeType !== 11 ) { return ret; } - } catch (e) {} + } catch ( e ) { + nonnativeSelectorCache( expr, true ); + } } return Sizzle( expr, document, null, [ elem ] ).length > 0; }; Sizzle.contains = function( context, elem ) { + // Set document vars if needed - if ( ( context.ownerDocument || context ) !== document ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( context.ownerDocument || context ) != document ) { setDocument( context ); } return contains( context, elem ); }; Sizzle.attr = function( elem, name ) { + // Set document vars if needed - if ( ( elem.ownerDocument || elem ) !== document ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( elem.ownerDocument || elem ) != document ) { setDocument( elem ); } var fn = Expr.attrHandle[ name.toLowerCase() ], + // Don't get fooled by Object.prototype properties (jQuery #13807) val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? fn( elem, name, !documentIsHTML ) : @@ -1567,13 +1664,13 @@ Sizzle.attr = function( elem, name ) { val : support.attributes || !documentIsHTML ? elem.getAttribute( name ) : - (val = elem.getAttributeNode(name)) && val.specified ? + ( val = elem.getAttributeNode( name ) ) && val.specified ? val.value : null; }; Sizzle.escape = function( sel ) { - return (sel + "").replace( rcssescape, fcssescape ); + return ( sel + "" ).replace( rcssescape, fcssescape ); }; Sizzle.error = function( msg ) { @@ -1596,7 +1693,7 @@ Sizzle.uniqueSort = function( results ) { results.sort( sortOrder ); if ( hasDuplicate ) { - while ( (elem = results[i++]) ) { + while ( ( elem = results[ i++ ] ) ) { if ( elem === results[ i ] ) { j = duplicates.push( i ); } @@ -1624,17 +1721,21 @@ getText = Sizzle.getText = function( elem ) { nodeType = elem.nodeType; if ( !nodeType ) { + // If no nodeType, this is expected to be an array - while ( (node = elem[i++]) ) { + while ( ( node = elem[ i++ ] ) ) { + // Do not traverse comment nodes ret += getText( node ); } } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + // Use textContent for elements // innerText usage removed for consistency of new lines (jQuery #11153) if ( typeof elem.textContent === "string" ) { return elem.textContent; } else { + // Traverse its children for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { ret += getText( elem ); @@ -1643,6 +1744,7 @@ getText = Sizzle.getText = function( elem ) { } else if ( nodeType === 3 || nodeType === 4 ) { return elem.nodeValue; } + // Do not include comment or processing instruction nodes return ret; @@ -1670,19 +1772,21 @@ Expr = Sizzle.selectors = { preFilter: { "ATTR": function( match ) { - match[1] = match[1].replace( runescape, funescape ); + match[ 1 ] = match[ 1 ].replace( runescape, funescape ); // Move the given value to match[3] whether quoted or unquoted - match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape ); + match[ 3 ] = ( match[ 3 ] || match[ 4 ] || + match[ 5 ] || "" ).replace( runescape, funescape ); - if ( match[2] === "~=" ) { - match[3] = " " + match[3] + " "; + if ( match[ 2 ] === "~=" ) { + match[ 3 ] = " " + match[ 3 ] + " "; } return match.slice( 0, 4 ); }, "CHILD": function( match ) { + /* matches from matchExpr["CHILD"] 1 type (only|nth|...) 2 what (child|of-type) @@ -1693,22 +1797,25 @@ Expr = Sizzle.selectors = { 7 sign of y-component 8 y of y-component */ - match[1] = match[1].toLowerCase(); + match[ 1 ] = match[ 1 ].toLowerCase(); + + if ( match[ 1 ].slice( 0, 3 ) === "nth" ) { - if ( match[1].slice( 0, 3 ) === "nth" ) { // nth-* requires argument - if ( !match[3] ) { - Sizzle.error( match[0] ); + if ( !match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); } // numeric x and y parameters for Expr.filter.CHILD // remember that false/true cast respectively to 0/1 - match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); - match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); + match[ 4 ] = +( match[ 4 ] ? + match[ 5 ] + ( match[ 6 ] || 1 ) : + 2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) ); + match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" ); - // other types prohibit arguments - } else if ( match[3] ) { - Sizzle.error( match[0] ); + // other types prohibit arguments + } else if ( match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); } return match; @@ -1716,26 +1823,28 @@ Expr = Sizzle.selectors = { "PSEUDO": function( match ) { var excess, - unquoted = !match[6] && match[2]; + unquoted = !match[ 6 ] && match[ 2 ]; - if ( matchExpr["CHILD"].test( match[0] ) ) { + if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) { return null; } // Accept quoted arguments as-is - if ( match[3] ) { - match[2] = match[4] || match[5] || ""; + if ( match[ 3 ] ) { + match[ 2 ] = match[ 4 ] || match[ 5 ] || ""; // Strip excess characters from unquoted arguments } else if ( unquoted && rpseudo.test( unquoted ) && + // Get excess from tokenize (recursively) - (excess = tokenize( unquoted, true )) && + ( excess = tokenize( unquoted, true ) ) && + // advance to the next closing parenthesis - (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { + ( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) { // excess is a negative index - match[0] = match[0].slice( 0, excess ); - match[2] = unquoted.slice( 0, excess ); + match[ 0 ] = match[ 0 ].slice( 0, excess ); + match[ 2 ] = unquoted.slice( 0, excess ); } // Return only captures needed by the pseudo filter method (type and argument) @@ -1748,7 +1857,9 @@ Expr = Sizzle.selectors = { "TAG": function( nodeNameSelector ) { var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); return nodeNameSelector === "*" ? - function() { return true; } : + function() { + return true; + } : function( elem ) { return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; }; @@ -1758,10 +1869,16 @@ Expr = Sizzle.selectors = { var pattern = classCache[ className + " " ]; return pattern || - (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && - classCache( className, function( elem ) { - return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" ); - }); + ( pattern = new RegExp( "(^|" + whitespace + + ")" + className + "(" + whitespace + "|$)" ) ) && classCache( + className, function( elem ) { + return pattern.test( + typeof elem.className === "string" && elem.className || + typeof elem.getAttribute !== "undefined" && + elem.getAttribute( "class" ) || + "" + ); + } ); }, "ATTR": function( name, operator, check ) { @@ -1777,6 +1894,8 @@ Expr = Sizzle.selectors = { result += ""; + /* eslint-disable max-len */ + return operator === "=" ? result === check : operator === "!=" ? result !== check : operator === "^=" ? check && result.indexOf( check ) === 0 : @@ -1785,10 +1904,12 @@ Expr = Sizzle.selectors = { operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : false; + /* eslint-enable max-len */ + }; }, - "CHILD": function( type, what, argument, first, last ) { + "CHILD": function( type, what, _argument, first, last ) { var simple = type.slice( 0, 3 ) !== "nth", forward = type.slice( -4 ) !== "last", ofType = what === "of-type"; @@ -1800,7 +1921,7 @@ Expr = Sizzle.selectors = { return !!elem.parentNode; } : - function( elem, context, xml ) { + function( elem, _context, xml ) { var cache, uniqueCache, outerCache, node, nodeIndex, start, dir = simple !== forward ? "nextSibling" : "previousSibling", parent = elem.parentNode, @@ -1814,7 +1935,7 @@ Expr = Sizzle.selectors = { if ( simple ) { while ( dir ) { node = elem; - while ( (node = node[ dir ]) ) { + while ( ( node = node[ dir ] ) ) { if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) { @@ -1822,6 +1943,7 @@ Expr = Sizzle.selectors = { return false; } } + // Reverse direction for :only-* (if we haven't yet done so) start = dir = type === "only" && !start && "nextSibling"; } @@ -1837,22 +1959,22 @@ Expr = Sizzle.selectors = { // ...in a gzip-friendly way node = parent; - outerCache = node[ expando ] || (node[ expando ] = {}); + outerCache = node[ expando ] || ( node[ expando ] = {} ); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ node.uniqueID ] || - (outerCache[ node.uniqueID ] = {}); + ( outerCache[ node.uniqueID ] = {} ); cache = uniqueCache[ type ] || []; nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; diff = nodeIndex && cache[ 2 ]; node = nodeIndex && parent.childNodes[ nodeIndex ]; - while ( (node = ++nodeIndex && node && node[ dir ] || + while ( ( node = ++nodeIndex && node && node[ dir ] || // Fallback to seeking `elem` from the start - (diff = nodeIndex = 0) || start.pop()) ) { + ( diff = nodeIndex = 0 ) || start.pop() ) ) { // When found, cache indexes on `parent` and break if ( node.nodeType === 1 && ++diff && node === elem ) { @@ -1862,16 +1984,18 @@ Expr = Sizzle.selectors = { } } else { + // Use previously-cached element index if available if ( useCache ) { + // ...in a gzip-friendly way node = elem; - outerCache = node[ expando ] || (node[ expando ] = {}); + outerCache = node[ expando ] || ( node[ expando ] = {} ); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ node.uniqueID ] || - (outerCache[ node.uniqueID ] = {}); + ( outerCache[ node.uniqueID ] = {} ); cache = uniqueCache[ type ] || []; nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; @@ -1881,9 +2005,10 @@ Expr = Sizzle.selectors = { // xml :nth-child(...) // or :nth-last-child(...) or :nth(-last)?-of-type(...) if ( diff === false ) { + // Use the same loop as above to seek `elem` from the start - while ( (node = ++nodeIndex && node && node[ dir ] || - (diff = nodeIndex = 0) || start.pop()) ) { + while ( ( node = ++nodeIndex && node && node[ dir ] || + ( diff = nodeIndex = 0 ) || start.pop() ) ) { if ( ( ofType ? node.nodeName.toLowerCase() === name : @@ -1892,12 +2017,13 @@ Expr = Sizzle.selectors = { // Cache the index of each encountered element if ( useCache ) { - outerCache = node[ expando ] || (node[ expando ] = {}); + outerCache = node[ expando ] || + ( node[ expando ] = {} ); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) uniqueCache = outerCache[ node.uniqueID ] || - (outerCache[ node.uniqueID ] = {}); + ( outerCache[ node.uniqueID ] = {} ); uniqueCache[ type ] = [ dirruns, diff ]; } @@ -1918,6 +2044,7 @@ Expr = Sizzle.selectors = { }, "PSEUDO": function( pseudo, argument ) { + // pseudo-class names are case-insensitive // http://www.w3.org/TR/selectors/#pseudo-classes // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters @@ -1937,15 +2064,15 @@ Expr = Sizzle.selectors = { if ( fn.length > 1 ) { args = [ pseudo, pseudo, "", argument ]; return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? - markFunction(function( seed, matches ) { + markFunction( function( seed, matches ) { var idx, matched = fn( seed, argument ), i = matched.length; while ( i-- ) { - idx = indexOf( seed, matched[i] ); - seed[ idx ] = !( matches[ idx ] = matched[i] ); + idx = indexOf( seed, matched[ i ] ); + seed[ idx ] = !( matches[ idx ] = matched[ i ] ); } - }) : + } ) : function( elem ) { return fn( elem, 0, args ); }; @@ -1956,8 +2083,10 @@ Expr = Sizzle.selectors = { }, pseudos: { + // Potentially complex pseudos - "not": markFunction(function( selector ) { + "not": markFunction( function( selector ) { + // Trim the selector passed to compile // to avoid treating leading and trailing // spaces as combinators @@ -1966,39 +2095,40 @@ Expr = Sizzle.selectors = { matcher = compile( selector.replace( rtrim, "$1" ) ); return matcher[ expando ] ? - markFunction(function( seed, matches, context, xml ) { + markFunction( function( seed, matches, _context, xml ) { var elem, unmatched = matcher( seed, null, xml, [] ), i = seed.length; // Match elements unmatched by `matcher` while ( i-- ) { - if ( (elem = unmatched[i]) ) { - seed[i] = !(matches[i] = elem); + if ( ( elem = unmatched[ i ] ) ) { + seed[ i ] = !( matches[ i ] = elem ); } } - }) : - function( elem, context, xml ) { - input[0] = elem; + } ) : + function( elem, _context, xml ) { + input[ 0 ] = elem; matcher( input, null, xml, results ); + // Don't keep the element (issue #299) - input[0] = null; + input[ 0 ] = null; return !results.pop(); }; - }), + } ), - "has": markFunction(function( selector ) { + "has": markFunction( function( selector ) { return function( elem ) { return Sizzle( selector, elem ).length > 0; }; - }), + } ), - "contains": markFunction(function( text ) { + "contains": markFunction( function( text ) { text = text.replace( runescape, funescape ); return function( elem ) { - return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; + return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1; }; - }), + } ), // "Whether an element is represented by a :lang() selector // is based solely on the element's language value @@ -2008,25 +2138,26 @@ Expr = Sizzle.selectors = { // The identifier C does not have to be a valid language name." // http://www.w3.org/TR/selectors/#lang-pseudo "lang": markFunction( function( lang ) { + // lang value must be a valid identifier - if ( !ridentifier.test(lang || "") ) { + if ( !ridentifier.test( lang || "" ) ) { Sizzle.error( "unsupported lang: " + lang ); } lang = lang.replace( runescape, funescape ).toLowerCase(); return function( elem ) { var elemLang; do { - if ( (elemLang = documentIsHTML ? + if ( ( elemLang = documentIsHTML ? elem.lang : - elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { + elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) { elemLang = elemLang.toLowerCase(); return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; } - } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); + } while ( ( elem = elem.parentNode ) && elem.nodeType === 1 ); return false; }; - }), + } ), // Miscellaneous "target": function( elem ) { @@ -2039,7 +2170,9 @@ Expr = Sizzle.selectors = { }, "focus": function( elem ) { - return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); + return elem === document.activeElement && + ( !document.hasFocus || document.hasFocus() ) && + !!( elem.type || elem.href || ~elem.tabIndex ); }, // Boolean properties @@ -2047,16 +2180,20 @@ Expr = Sizzle.selectors = { "disabled": createDisabledPseudo( true ), "checked": function( elem ) { + // In CSS3, :checked should return both checked and selected elements // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked var nodeName = elem.nodeName.toLowerCase(); - return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); + return ( nodeName === "input" && !!elem.checked ) || + ( nodeName === "option" && !!elem.selected ); }, "selected": function( elem ) { + // Accessing this property makes selected-by-default // options in Safari work properly if ( elem.parentNode ) { + // eslint-disable-next-line no-unused-expressions elem.parentNode.selectedIndex; } @@ -2065,6 +2202,7 @@ Expr = Sizzle.selectors = { // Contents "empty": function( elem ) { + // http://www.w3.org/TR/selectors/#empty-pseudo // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), // but not by others (comment: 8; processing instruction: 7; etc.) @@ -2078,7 +2216,7 @@ Expr = Sizzle.selectors = { }, "parent": function( elem ) { - return !Expr.pseudos["empty"]( elem ); + return !Expr.pseudos[ "empty" ]( elem ); }, // Element/input types @@ -2102,57 +2240,62 @@ Expr = Sizzle.selectors = { // Support: IE<8 // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" - ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); + ( ( attr = elem.getAttribute( "type" ) ) == null || + attr.toLowerCase() === "text" ); }, // Position-in-collection - "first": createPositionalPseudo(function() { + "first": createPositionalPseudo( function() { return [ 0 ]; - }), + } ), - "last": createPositionalPseudo(function( matchIndexes, length ) { + "last": createPositionalPseudo( function( _matchIndexes, length ) { return [ length - 1 ]; - }), + } ), - "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { + "eq": createPositionalPseudo( function( _matchIndexes, length, argument ) { return [ argument < 0 ? argument + length : argument ]; - }), + } ), - "even": createPositionalPseudo(function( matchIndexes, length ) { + "even": createPositionalPseudo( function( matchIndexes, length ) { var i = 0; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; - }), + } ), - "odd": createPositionalPseudo(function( matchIndexes, length ) { + "odd": createPositionalPseudo( function( matchIndexes, length ) { var i = 1; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; - }), + } ), - "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { - var i = argument < 0 ? argument + length : argument; + "lt": createPositionalPseudo( function( matchIndexes, length, argument ) { + var i = argument < 0 ? + argument + length : + argument > length ? + length : + argument; for ( ; --i >= 0; ) { matchIndexes.push( i ); } return matchIndexes; - }), + } ), - "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { + "gt": createPositionalPseudo( function( matchIndexes, length, argument ) { var i = argument < 0 ? argument + length : argument; for ( ; ++i < length; ) { matchIndexes.push( i ); } return matchIndexes; - }) + } ) } }; -Expr.pseudos["nth"] = Expr.pseudos["eq"]; +Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ]; // Add button/input type pseudos for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { @@ -2183,37 +2326,39 @@ tokenize = Sizzle.tokenize = function( selector, parseOnly ) { while ( soFar ) { // Comma and first run - if ( !matched || (match = rcomma.exec( soFar )) ) { + if ( !matched || ( match = rcomma.exec( soFar ) ) ) { if ( match ) { + // Don't consume trailing commas as valid - soFar = soFar.slice( match[0].length ) || soFar; + soFar = soFar.slice( match[ 0 ].length ) || soFar; } - groups.push( (tokens = []) ); + groups.push( ( tokens = [] ) ); } matched = false; // Combinators - if ( (match = rcombinators.exec( soFar )) ) { + if ( ( match = rcombinators.exec( soFar ) ) ) { matched = match.shift(); - tokens.push({ + tokens.push( { value: matched, + // Cast descendant combinators to space - type: match[0].replace( rtrim, " " ) - }); + type: match[ 0 ].replace( rtrim, " " ) + } ); soFar = soFar.slice( matched.length ); } // Filters for ( type in Expr.filter ) { - if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || - (match = preFilters[ type ]( match ))) ) { + if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] || + ( match = preFilters[ type ]( match ) ) ) ) { matched = match.shift(); - tokens.push({ + tokens.push( { value: matched, type: type, matches: match - }); + } ); soFar = soFar.slice( matched.length ); } } @@ -2230,6 +2375,7 @@ tokenize = Sizzle.tokenize = function( selector, parseOnly ) { soFar.length : soFar ? Sizzle.error( selector ) : + // Cache the tokens tokenCache( selector, groups ).slice( 0 ); }; @@ -2239,7 +2385,7 @@ function toSelector( tokens ) { len = tokens.length, selector = ""; for ( ; i < len; i++ ) { - selector += tokens[i].value; + selector += tokens[ i ].value; } return selector; } @@ -2252,9 +2398,10 @@ function addCombinator( matcher, combinator, base ) { doneName = done++; return combinator.first ? + // Check against closest ancestor/preceding element function( elem, context, xml ) { - while ( (elem = elem[ dir ]) ) { + while ( ( elem = elem[ dir ] ) ) { if ( elem.nodeType === 1 || checkNonElements ) { return matcher( elem, context, xml ); } @@ -2269,7 +2416,7 @@ function addCombinator( matcher, combinator, base ) { // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching if ( xml ) { - while ( (elem = elem[ dir ]) ) { + while ( ( elem = elem[ dir ] ) ) { if ( elem.nodeType === 1 || checkNonElements ) { if ( matcher( elem, context, xml ) ) { return true; @@ -2277,27 +2424,29 @@ function addCombinator( matcher, combinator, base ) { } } } else { - while ( (elem = elem[ dir ]) ) { + while ( ( elem = elem[ dir ] ) ) { if ( elem.nodeType === 1 || checkNonElements ) { - outerCache = elem[ expando ] || (elem[ expando ] = {}); + outerCache = elem[ expando ] || ( elem[ expando ] = {} ); // Support: IE <9 only // Defend against cloned attroperties (jQuery gh-1709) - uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {}); + uniqueCache = outerCache[ elem.uniqueID ] || + ( outerCache[ elem.uniqueID ] = {} ); if ( skip && skip === elem.nodeName.toLowerCase() ) { elem = elem[ dir ] || elem; - } else if ( (oldCache = uniqueCache[ key ]) && + } else if ( ( oldCache = uniqueCache[ key ] ) && oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { // Assign to newCache so results back-propagate to previous elements - return (newCache[ 2 ] = oldCache[ 2 ]); + return ( newCache[ 2 ] = oldCache[ 2 ] ); } else { + // Reuse newcache so results back-propagate to previous elements uniqueCache[ key ] = newCache; // A match means we're done; a fail means we have to keep checking - if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { + if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) { return true; } } @@ -2313,20 +2462,20 @@ function elementMatcher( matchers ) { function( elem, context, xml ) { var i = matchers.length; while ( i-- ) { - if ( !matchers[i]( elem, context, xml ) ) { + if ( !matchers[ i ]( elem, context, xml ) ) { return false; } } return true; } : - matchers[0]; + matchers[ 0 ]; } function multipleContexts( selector, contexts, results ) { var i = 0, len = contexts.length; for ( ; i < len; i++ ) { - Sizzle( selector, contexts[i], results ); + Sizzle( selector, contexts[ i ], results ); } return results; } @@ -2339,7 +2488,7 @@ function condense( unmatched, map, filter, context, xml ) { mapped = map != null; for ( ; i < len; i++ ) { - if ( (elem = unmatched[i]) ) { + if ( ( elem = unmatched[ i ] ) ) { if ( !filter || filter( elem, context, xml ) ) { newUnmatched.push( elem ); if ( mapped ) { @@ -2359,14 +2508,18 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS if ( postFinder && !postFinder[ expando ] ) { postFinder = setMatcher( postFinder, postSelector ); } - return markFunction(function( seed, results, context, xml ) { + return markFunction( function( seed, results, context, xml ) { var temp, i, elem, preMap = [], postMap = [], preexisting = results.length, // Get initial elements from seed or context - elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), + elems = seed || multipleContexts( + selector || "*", + context.nodeType ? [ context ] : context, + [] + ), // Prefilter to get matcher input, preserving a map for seed-results synchronization matcherIn = preFilter && ( seed || !selector ) ? @@ -2374,6 +2527,7 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS elems, matcherOut = matcher ? + // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, postFinder || ( seed ? preFilter : preexisting || postFilter ) ? @@ -2397,8 +2551,8 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS // Un-match failing elements by moving them back to matcherIn i = temp.length; while ( i-- ) { - if ( (elem = temp[i]) ) { - matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); + if ( ( elem = temp[ i ] ) ) { + matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem ); } } } @@ -2406,25 +2560,27 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS if ( seed ) { if ( postFinder || preFilter ) { if ( postFinder ) { + // Get the final matcherOut by condensing this intermediate into postFinder contexts temp = []; i = matcherOut.length; while ( i-- ) { - if ( (elem = matcherOut[i]) ) { + if ( ( elem = matcherOut[ i ] ) ) { + // Restore matcherIn since elem is not yet a final match - temp.push( (matcherIn[i] = elem) ); + temp.push( ( matcherIn[ i ] = elem ) ); } } - postFinder( null, (matcherOut = []), temp, xml ); + postFinder( null, ( matcherOut = [] ), temp, xml ); } // Move matched elements from seed to results to keep them synchronized i = matcherOut.length; while ( i-- ) { - if ( (elem = matcherOut[i]) && - (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) { + if ( ( elem = matcherOut[ i ] ) && + ( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) { - seed[temp] = !(results[temp] = elem); + seed[ temp ] = !( results[ temp ] = elem ); } } } @@ -2442,14 +2598,14 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS push.apply( results, matcherOut ); } } - }); + } ); } function matcherFromTokens( tokens ) { var checkContext, matcher, j, len = tokens.length, - leadingRelative = Expr.relative[ tokens[0].type ], - implicitRelative = leadingRelative || Expr.relative[" "], + leadingRelative = Expr.relative[ tokens[ 0 ].type ], + implicitRelative = leadingRelative || Expr.relative[ " " ], i = leadingRelative ? 1 : 0, // The foundational matcher ensures that elements are reachable from top-level context(s) @@ -2461,38 +2617,43 @@ function matcherFromTokens( tokens ) { }, implicitRelative, true ), matchers = [ function( elem, context, xml ) { var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( - (checkContext = context).nodeType ? + ( checkContext = context ).nodeType ? matchContext( elem, context, xml ) : matchAnyContext( elem, context, xml ) ); + // Avoid hanging onto element (issue #299) checkContext = null; return ret; } ]; for ( ; i < len; i++ ) { - if ( (matcher = Expr.relative[ tokens[i].type ]) ) { - matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; + if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) { + matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ]; } else { - matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); + matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches ); // Return special upon seeing a positional matcher if ( matcher[ expando ] ) { + // Find the next relative operator (if any) for proper handling j = ++i; for ( ; j < len; j++ ) { - if ( Expr.relative[ tokens[j].type ] ) { + if ( Expr.relative[ tokens[ j ].type ] ) { break; } } return setMatcher( i > 1 && elementMatcher( matchers ), i > 1 && toSelector( - // If the preceding token was a descendant combinator, insert an implicit any-element `*` - tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) + + // If the preceding token was a descendant combinator, insert an implicit any-element `*` + tokens + .slice( 0, i - 1 ) + .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } ) ).replace( rtrim, "$1" ), matcher, i < j && matcherFromTokens( tokens.slice( i, j ) ), - j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), + j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ), j < len && toSelector( tokens ) ); } @@ -2513,28 +2674,40 @@ function matcherFromGroupMatchers( elementMatchers, setMatchers ) { unmatched = seed && [], setMatched = [], contextBackup = outermostContext, + // We must always have either seed elements or outermost context - elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), + elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ), + // Use integer dirruns iff this is the outermost matcher - dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), + dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ), len = elems.length; if ( outermost ) { - outermostContext = context === document || context || outermost; + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + outermostContext = context == document || context || outermost; } // Add elements passing elementMatchers directly to results // Support: IE<9, Safari // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id - for ( ; i !== len && (elem = elems[i]) != null; i++ ) { + for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) { if ( byElement && elem ) { j = 0; - if ( !context && elem.ownerDocument !== document ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( !context && elem.ownerDocument != document ) { setDocument( elem ); xml = !documentIsHTML; } - while ( (matcher = elementMatchers[j++]) ) { - if ( matcher( elem, context || document, xml) ) { + while ( ( matcher = elementMatchers[ j++ ] ) ) { + if ( matcher( elem, context || document, xml ) ) { results.push( elem ); break; } @@ -2546,8 +2719,9 @@ function matcherFromGroupMatchers( elementMatchers, setMatchers ) { // Track unmatched elements for set filters if ( bySet ) { + // They will have gone through all possible matchers - if ( (elem = !matcher && elem) ) { + if ( ( elem = !matcher && elem ) ) { matchedCount--; } @@ -2571,16 +2745,17 @@ function matcherFromGroupMatchers( elementMatchers, setMatchers ) { // numerically zero. if ( bySet && i !== matchedCount ) { j = 0; - while ( (matcher = setMatchers[j++]) ) { + while ( ( matcher = setMatchers[ j++ ] ) ) { matcher( unmatched, setMatched, context, xml ); } if ( seed ) { + // Reintegrate element matches to eliminate the need for sorting if ( matchedCount > 0 ) { while ( i-- ) { - if ( !(unmatched[i] || setMatched[i]) ) { - setMatched[i] = pop.call( results ); + if ( !( unmatched[ i ] || setMatched[ i ] ) ) { + setMatched[ i ] = pop.call( results ); } } } @@ -2621,13 +2796,14 @@ compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { cached = compilerCache[ selector + " " ]; if ( !cached ) { + // Generate a function of recursive functions that can be used to check each element if ( !match ) { match = tokenize( selector ); } i = match.length; while ( i-- ) { - cached = matcherFromTokens( match[i] ); + cached = matcherFromTokens( match[ i ] ); if ( cached[ expando ] ) { setMatchers.push( cached ); } else { @@ -2636,7 +2812,10 @@ compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { } // Cache the compiled function - cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); + cached = compilerCache( + selector, + matcherFromGroupMatchers( elementMatchers, setMatchers ) + ); // Save selector and tokenization cached.selector = selector; @@ -2656,7 +2835,7 @@ compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { select = Sizzle.select = function( selector, context, results, seed ) { var i, tokens, token, type, find, compiled = typeof selector === "function" && selector, - match = !seed && tokenize( (selector = compiled.selector || selector) ); + match = !seed && tokenize( ( selector = compiled.selector || selector ) ); results = results || []; @@ -2665,11 +2844,12 @@ select = Sizzle.select = function( selector, context, results, seed ) { if ( match.length === 1 ) { // Reduce context if the leading compound selector is an ID - tokens = match[0] = match[0].slice( 0 ); - if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && - context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) { + tokens = match[ 0 ] = match[ 0 ].slice( 0 ); + if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" && + context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) { - context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; + context = ( Expr.find[ "ID" ]( token.matches[ 0 ] + .replace( runescape, funescape ), context ) || [] )[ 0 ]; if ( !context ) { return results; @@ -2682,20 +2862,22 @@ select = Sizzle.select = function( selector, context, results, seed ) { } // Fetch a seed set for right-to-left matching - i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; + i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length; while ( i-- ) { - token = tokens[i]; + token = tokens[ i ]; // Abort if we hit a combinator - if ( Expr.relative[ (type = token.type) ] ) { + if ( Expr.relative[ ( type = token.type ) ] ) { break; } - if ( (find = Expr.find[ type ]) ) { + if ( ( find = Expr.find[ type ] ) ) { + // Search, expanding context for leading sibling combinators - if ( (seed = find( - token.matches[0].replace( runescape, funescape ), - rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context - )) ) { + if ( ( seed = find( + token.matches[ 0 ].replace( runescape, funescape ), + rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) || + context + ) ) ) { // If seed is empty or no tokens remain, we can return early tokens.splice( i, 1 ); @@ -2726,7 +2908,7 @@ select = Sizzle.select = function( selector, context, results, seed ) { // One-time assignments // Sort stability -support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; +support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando; // Support: Chrome 14-35+ // Always assume duplicates if they aren't passed to the comparison function @@ -2737,58 +2919,59 @@ setDocument(); // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) // Detached nodes confoundingly follow *each other* -support.sortDetached = assert(function( el ) { +support.sortDetached = assert( function( el ) { + // Should return 1, but returns 4 (following) - return el.compareDocumentPosition( document.createElement("fieldset") ) & 1; -}); + return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1; +} ); // Support: IE<8 // Prevent attribute/property "interpolation" // https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx -if ( !assert(function( el ) { +if ( !assert( function( el ) { el.innerHTML = ""; - return el.firstChild.getAttribute("href") === "#" ; -}) ) { + return el.firstChild.getAttribute( "href" ) === "#"; +} ) ) { addHandle( "type|href|height|width", function( elem, name, isXML ) { if ( !isXML ) { return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); } - }); + } ); } // Support: IE<9 // Use defaultValue in place of getAttribute("value") -if ( !support.attributes || !assert(function( el ) { +if ( !support.attributes || !assert( function( el ) { el.innerHTML = ""; el.firstChild.setAttribute( "value", "" ); return el.firstChild.getAttribute( "value" ) === ""; -}) ) { - addHandle( "value", function( elem, name, isXML ) { +} ) ) { + addHandle( "value", function( elem, _name, isXML ) { if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { return elem.defaultValue; } - }); + } ); } // Support: IE<9 // Use getAttributeNode to fetch booleans when getAttribute lies -if ( !assert(function( el ) { - return el.getAttribute("disabled") == null; -}) ) { +if ( !assert( function( el ) { + return el.getAttribute( "disabled" ) == null; +} ) ) { addHandle( booleans, function( elem, name, isXML ) { var val; if ( !isXML ) { return elem[ name ] === true ? name.toLowerCase() : - (val = elem.getAttributeNode( name )) && val.specified ? + ( val = elem.getAttributeNode( name ) ) && val.specified ? val.value : - null; + null; } - }); + } ); } return Sizzle; -})( window ); +} )( window ); @@ -2848,11 +3031,9 @@ var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>| -var risSimple = /^.[^:#\[\.,]*$/; - // Implement the identical functionality for filter and not function winnow( elements, qualifier, not ) { - if ( jQuery.isFunction( qualifier ) ) { + if ( isFunction( qualifier ) ) { return jQuery.grep( elements, function( elem, i ) { return !!qualifier.call( elem, i, elem ) !== not; } ); @@ -2872,16 +3053,8 @@ function winnow( elements, qualifier, not ) { } ); } - // Simple selector that can be filtered directly, removing non-Elements - if ( risSimple.test( qualifier ) ) { - return jQuery.filter( qualifier, elements, not ); - } - - // Complex selector, compare the two sets, removing non-Elements - qualifier = jQuery.filter( qualifier, elements ); - return jQuery.grep( elements, function( elem ) { - return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1; - } ); + // Filtered directly for both simple and complex selectors + return jQuery.filter( qualifier, elements, not ); } jQuery.filter = function( expr, elems, not ) { @@ -3002,7 +3175,7 @@ var rootjQuery, for ( match in context ) { // Properties of context are called as methods if possible - if ( jQuery.isFunction( this[ match ] ) ) { + if ( isFunction( this[ match ] ) ) { this[ match ]( context[ match ] ); // ...and otherwise set as attributes @@ -3045,7 +3218,7 @@ var rootjQuery, // HANDLE: $(function) // Shortcut for document ready - } else if ( jQuery.isFunction( selector ) ) { + } else if ( isFunction( selector ) ) { return root.ready !== undefined ? root.ready( selector ) : @@ -3167,7 +3340,7 @@ jQuery.each( { parents: function( elem ) { return dir( elem, "parentNode" ); }, - parentsUntil: function( elem, i, until ) { + parentsUntil: function( elem, _i, until ) { return dir( elem, "parentNode", until ); }, next: function( elem ) { @@ -3182,10 +3355,10 @@ jQuery.each( { prevAll: function( elem ) { return dir( elem, "previousSibling" ); }, - nextUntil: function( elem, i, until ) { + nextUntil: function( elem, _i, until ) { return dir( elem, "nextSibling", until ); }, - prevUntil: function( elem, i, until ) { + prevUntil: function( elem, _i, until ) { return dir( elem, "previousSibling", until ); }, siblings: function( elem ) { @@ -3195,18 +3368,24 @@ jQuery.each( { return siblings( elem.firstChild ); }, contents: function( elem ) { - if ( nodeName( elem, "iframe" ) ) { - return elem.contentDocument; - } + if ( elem.contentDocument != null && - // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only - // Treat the template element as a regular one in browsers that - // don't support it. - if ( nodeName( elem, "template" ) ) { - elem = elem.content || elem; - } + // Support: IE 11+ + // elements with no `data` attribute has an object + // `contentDocument` with a `null` prototype. + getProto( elem.contentDocument ) ) { - return jQuery.merge( [], elem.childNodes ); + return elem.contentDocument; + } + + // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only + // Treat the template element as a regular one in browsers that + // don't support it. + if ( nodeName( elem, "template" ) ) { + elem = elem.content || elem; + } + + return jQuery.merge( [], elem.childNodes ); } }, function( name, fn ) { jQuery.fn[ name ] = function( until, selector ) { @@ -3360,11 +3539,11 @@ jQuery.Callbacks = function( options ) { ( function add( args ) { jQuery.each( args, function( _, arg ) { - if ( jQuery.isFunction( arg ) ) { + if ( isFunction( arg ) ) { if ( !options.unique || !self.has( arg ) ) { list.push( arg ); } - } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { + } else if ( arg && arg.length && toType( arg ) !== "string" ) { // Inspect recursively add( arg ); @@ -3479,11 +3658,11 @@ function adoptValue( value, resolve, reject, noValue ) { try { // Check for promise aspect first to privilege synchronous behavior - if ( value && jQuery.isFunction( ( method = value.promise ) ) ) { + if ( value && isFunction( ( method = value.promise ) ) ) { method.call( value ).done( resolve ).fail( reject ); // Other thenables - } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) { + } else if ( value && isFunction( ( method = value.then ) ) ) { method.call( value, resolve, reject ); // Other non-thenables @@ -3538,17 +3717,17 @@ jQuery.extend( { var fns = arguments; return jQuery.Deferred( function( newDefer ) { - jQuery.each( tuples, function( i, tuple ) { + jQuery.each( tuples, function( _i, tuple ) { // Map tuples (progress, done, fail) to arguments (done, fail, progress) - var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; + var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; // deferred.progress(function() { bind to newDefer or newDefer.notify }) // deferred.done(function() { bind to newDefer or newDefer.resolve }) // deferred.fail(function() { bind to newDefer or newDefer.reject }) deferred[ tuple[ 1 ] ]( function() { var returned = fn && fn.apply( this, arguments ); - if ( returned && jQuery.isFunction( returned.promise ) ) { + if ( returned && isFunction( returned.promise ) ) { returned.promise() .progress( newDefer.notify ) .done( newDefer.resolve ) @@ -3602,7 +3781,7 @@ jQuery.extend( { returned.then; // Handle a returned thenable - if ( jQuery.isFunction( then ) ) { + if ( isFunction( then ) ) { // Special processors (notify) just wait for resolution if ( special ) { @@ -3698,7 +3877,7 @@ jQuery.extend( { resolve( 0, newDefer, - jQuery.isFunction( onProgress ) ? + isFunction( onProgress ) ? onProgress : Identity, newDefer.notifyWith @@ -3710,7 +3889,7 @@ jQuery.extend( { resolve( 0, newDefer, - jQuery.isFunction( onFulfilled ) ? + isFunction( onFulfilled ) ? onFulfilled : Identity ) @@ -3721,7 +3900,7 @@ jQuery.extend( { resolve( 0, newDefer, - jQuery.isFunction( onRejected ) ? + isFunction( onRejected ) ? onRejected : Thrower ) @@ -3761,8 +3940,15 @@ jQuery.extend( { // fulfilled_callbacks.disable tuples[ 3 - i ][ 2 ].disable, + // rejected_handlers.disable + // fulfilled_handlers.disable + tuples[ 3 - i ][ 3 ].disable, + // progress_callbacks.lock - tuples[ 0 ][ 2 ].lock + tuples[ 0 ][ 2 ].lock, + + // progress_handlers.lock + tuples[ 0 ][ 3 ].lock ); } @@ -3832,7 +4018,7 @@ jQuery.extend( { // Use .then() to unwrap secondary thenables (cf. gh-3000) if ( master.state() === "pending" || - jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { + isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { return master.then(); } @@ -3960,7 +4146,7 @@ var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { bulk = key == null; // Sets many values - if ( jQuery.type( key ) === "object" ) { + if ( toType( key ) === "object" ) { chainable = true; for ( i in key ) { access( elems, fn, i, key[ i ], true, emptyGet, raw ); @@ -3970,7 +4156,7 @@ var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { } else if ( value !== undefined ) { chainable = true; - if ( !jQuery.isFunction( value ) ) { + if ( !isFunction( value ) ) { raw = true; } @@ -3984,7 +4170,7 @@ var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { // ...except when executing function values } else { bulk = fn; - fn = function( elem, key, value ) { + fn = function( elem, _key, value ) { return bulk.call( jQuery( elem ), value ); }; } @@ -4012,6 +4198,23 @@ var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { return len ? fn( elems[ 0 ], key ) : emptyGet; }; + + +// Matches dashed string for camelizing +var rmsPrefix = /^-ms-/, + rdashAlpha = /-([a-z])/g; + +// Used by camelCase as callback to replace() +function fcamelCase( _all, letter ) { + return letter.toUpperCase(); +} + +// Convert dashed to camelCase; used by the css and data modules +// Support: IE <=9 - 11, Edge 12 - 15 +// Microsoft forgot to hump their vendor prefix (#9572) +function camelCase( string ) { + return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); +} var acceptData = function( owner ) { // Accepts only: @@ -4074,14 +4277,14 @@ Data.prototype = { // Handle: [ owner, key, value ] args // Always use camelCase key (gh-2257) if ( typeof data === "string" ) { - cache[ jQuery.camelCase( data ) ] = value; + cache[ camelCase( data ) ] = value; // Handle: [ owner, { properties } ] args } else { // Copy the properties one-by-one to the cache object for ( prop in data ) { - cache[ jQuery.camelCase( prop ) ] = data[ prop ]; + cache[ camelCase( prop ) ] = data[ prop ]; } } return cache; @@ -4091,7 +4294,7 @@ Data.prototype = { this.cache( owner ) : // Always use camelCase key (gh-2257) - owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ]; + owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ]; }, access: function( owner, key, value ) { @@ -4139,9 +4342,9 @@ Data.prototype = { // If key is an array of keys... // We always set camelCase keys, so remove that. - key = key.map( jQuery.camelCase ); + key = key.map( camelCase ); } else { - key = jQuery.camelCase( key ); + key = camelCase( key ); // If a key with the spaces exists, use it. // Otherwise, create an array by matching non-whitespace @@ -4287,7 +4490,7 @@ jQuery.fn.extend( { if ( attrs[ i ] ) { name = attrs[ i ].name; if ( name.indexOf( "data-" ) === 0 ) { - name = jQuery.camelCase( name.slice( 5 ) ); + name = camelCase( name.slice( 5 ) ); dataAttr( elem, name, data[ name ] ); } } @@ -4491,6 +4694,26 @@ var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; +var documentElement = document.documentElement; + + + + var isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ); + }, + composed = { composed: true }; + + // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only + // Check attachment across shadow DOM boundaries when possible (gh-3504) + // Support: iOS 10.0-10.2 only + // Early iOS 10 versions support `attachShadow` but not `getRootNode`, + // leading to errors. We need to check for `getRootNode`. + if ( documentElement.getRootNode ) { + isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ) || + elem.getRootNode( composed ) === elem.ownerDocument; + }; + } var isHiddenWithinTree = function( elem, el ) { // isHiddenWithinTree might be called from jQuery#filter function; @@ -4505,37 +4728,15 @@ var isHiddenWithinTree = function( elem, el ) { // Support: Firefox <=43 - 45 // Disconnected elements can have computed display: none, so first confirm that elem is // in the document. - jQuery.contains( elem.ownerDocument, elem ) && + isAttached( elem ) && jQuery.css( elem, "display" ) === "none"; }; -var swap = function( elem, options, callback, args ) { - var ret, name, - old = {}; - - // Remember the old values, and insert the new ones - for ( name in options ) { - old[ name ] = elem.style[ name ]; - elem.style[ name ] = options[ name ]; - } - - ret = callback.apply( elem, args || [] ); - - // Revert the old values - for ( name in options ) { - elem.style[ name ] = old[ name ]; - } - - return ret; -}; - - function adjustCSS( elem, prop, valueParts, tween ) { - var adjusted, - scale = 1, + var adjusted, scale, maxIterations = 20, currentValue = tween ? function() { @@ -4548,35 +4749,39 @@ function adjustCSS( elem, prop, valueParts, tween ) { unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), // Starting value computation is required for potential unit mismatches - initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && + initialInUnit = elem.nodeType && + ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && rcssNum.exec( jQuery.css( elem, prop ) ); if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { + // Support: Firefox <=54 + // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144) + initial = initial / 2; + // Trust units reported by jQuery.css unit = unit || initialInUnit[ 3 ]; - // Make sure we update the tween properties later on - valueParts = valueParts || []; - // Iteratively approximate from a nonzero starting point initialInUnit = +initial || 1; - do { - - // If previous iteration zeroed out, double until we get *something*. - // Use string for doubling so we don't accidentally see scale as unchanged below - scale = scale || ".5"; + while ( maxIterations-- ) { - // Adjust and apply - initialInUnit = initialInUnit / scale; + // Evaluate and update our best guess (doubling guesses that zero out). + // Finish if the scale equals or crosses 1 (making the old*new product non-positive). jQuery.style( elem, prop, initialInUnit + unit ); + if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) { + maxIterations = 0; + } + initialInUnit = initialInUnit / scale; - // Update scale, tolerating zero or NaN from tween.cur() - // Break the loop if scale is unchanged or perfect, or if we've just had enough. - } while ( - scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations - ); + } + + initialInUnit = initialInUnit * 2; + jQuery.style( elem, prop, initialInUnit + unit ); + + // Make sure we update the tween properties later on + valueParts = valueParts || []; } if ( valueParts ) { @@ -4692,17 +4897,46 @@ jQuery.fn.extend( { } ); var rcheckableType = ( /^(?:checkbox|radio)$/i ); -var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i ); +var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i ); -var rscriptType = ( /^$|\/(?:java|ecma)script/i ); +var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i ); -// We have to close these tags to support XHTML (#13200) -var wrapMap = { +( function() { + var fragment = document.createDocumentFragment(), + div = fragment.appendChild( document.createElement( "div" ) ), + input = document.createElement( "input" ); + + // Support: Android 4.0 - 4.3 only + // Check state lost if the name is set (#11217) + // Support: Windows Web Apps (WWA) + // `name` and `type` must use .setAttribute for WWA (#14901) + input.setAttribute( "type", "radio" ); + input.setAttribute( "checked", "checked" ); + input.setAttribute( "name", "t" ); + + div.appendChild( input ); + + // Support: Android <=4.1 only + // Older WebKit doesn't clone checked state correctly in fragments + support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; + + // Support: IE <=11 only + // Make sure textarea (and checkbox) defaultValue is properly cloned + div.innerHTML = ""; + support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; // Support: IE <=9 only - option: [ 1, "" ], + // IE <=9 replaces "; + support.option = !!div.lastChild; +} )(); + + +// We have to close these tags to support XHTML (#13200) +var wrapMap = { // XHTML parsers do not magically insert elements in the // same way that tag soup parsers do. So we cannot shorten @@ -4715,12 +4949,14 @@ var wrapMap = { _default: [ 0, "", "" ] }; -// Support: IE <=9 only -wrapMap.optgroup = wrapMap.option; - wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; wrapMap.th = wrapMap.td; +// Support: IE <=9 only +if ( !support.option ) { + wrapMap.optgroup = wrapMap.option = [ 1, "" ]; +} + function getAll( context, tag ) { @@ -4764,7 +5000,7 @@ function setGlobalEval( elems, refElements ) { var rhtml = /<|&#?\w+;/; function buildFragment( elems, context, scripts, selection, ignored ) { - var elem, tmp, tag, wrap, contains, j, + var elem, tmp, tag, wrap, attached, j, fragment = context.createDocumentFragment(), nodes = [], i = 0, @@ -4776,7 +5012,7 @@ function buildFragment( elems, context, scripts, selection, ignored ) { if ( elem || elem === 0 ) { // Add nodes directly - if ( jQuery.type( elem ) === "object" ) { + if ( toType( elem ) === "object" ) { // Support: Android <=4.0 only, PhantomJS 1 only // push.apply(_, arraylike) throws on ancient WebKit @@ -4828,13 +5064,13 @@ function buildFragment( elems, context, scripts, selection, ignored ) { continue; } - contains = jQuery.contains( elem.ownerDocument, elem ); + attached = isAttached( elem ); // Append to fragment tmp = getAll( fragment.appendChild( elem ), "script" ); // Preserve script evaluation history - if ( contains ) { + if ( attached ) { setGlobalEval( tmp ); } @@ -4853,34 +5089,6 @@ function buildFragment( elems, context, scripts, selection, ignored ) { } -( function() { - var fragment = document.createDocumentFragment(), - div = fragment.appendChild( document.createElement( "div" ) ), - input = document.createElement( "input" ); - - // Support: Android 4.0 - 4.3 only - // Check state lost if the name is set (#11217) - // Support: Windows Web Apps (WWA) - // `name` and `type` must use .setAttribute for WWA (#14901) - input.setAttribute( "type", "radio" ); - input.setAttribute( "checked", "checked" ); - input.setAttribute( "name", "t" ); - - div.appendChild( input ); - - // Support: Android <=4.1 only - // Older WebKit doesn't clone checked state correctly in fragments - support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; - - // Support: IE <=11 only - // Make sure textarea (and checkbox) defaultValue is properly cloned - div.innerHTML = ""; - support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; -} )(); -var documentElement = document.documentElement; - - - var rkeyEvent = /^key/, rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, @@ -4894,8 +5102,19 @@ function returnFalse() { return false; } +// Support: IE <=9 - 11+ +// focus() and blur() are asynchronous, except when they are no-op. +// So expect focus to be synchronous when the element is already active, +// and blur to be synchronous when the element is not already active. +// (focus and blur are always synchronous in other supported browsers, +// this just defines when we can count on it). +function expectSync( elem, type ) { + return ( elem === safeActiveElement() ) === ( type === "focus" ); +} + // Support: IE <=9 only -// See #13393 for more info +// Accessing document.activeElement can throw unexpectedly +// https://bugs.jquery.com/ticket/13393 function safeActiveElement() { try { return document.activeElement; @@ -4978,8 +5197,8 @@ jQuery.event = { special, handlers, type, namespaces, origType, elemData = dataPriv.get( elem ); - // Don't attach events to noData or text/comment nodes (but allow plain objects) - if ( !elemData ) { + // Only attach events to objects that accept data + if ( !acceptData( elem ) ) { return; } @@ -5003,7 +5222,7 @@ jQuery.event = { // Init the element's event structure and main handler, if this is the first if ( !( events = elemData.events ) ) { - events = elemData.events = {}; + events = elemData.events = Object.create( null ); } if ( !( eventHandle = elemData.handle ) ) { eventHandle = elemData.handle = function( e ) { @@ -5161,12 +5380,15 @@ jQuery.event = { dispatch: function( nativeEvent ) { - // Make a writable jQuery.Event from the native event object - var event = jQuery.event.fix( nativeEvent ); - var i, j, ret, matched, handleObj, handlerQueue, args = new Array( arguments.length ), - handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [], + + // Make a writable jQuery.Event from the native event object + event = jQuery.event.fix( nativeEvent ), + + handlers = ( + dataPriv.get( this, "events" ) || Object.create( null ) + )[ event.type ] || [], special = jQuery.event.special[ event.type ] || {}; // Use the fix-ed jQuery.Event rather than the (read-only) native event @@ -5195,9 +5417,10 @@ jQuery.event = { while ( ( handleObj = matched.handlers[ j++ ] ) && !event.isImmediatePropagationStopped() ) { - // Triggered event must either 1) have no namespace, or 2) have namespace(s) - // a subset or equal to those in the bound event (both can have no namespace). - if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) { + // If the event is namespaced, then each handler is only invoked if it is + // specially universal or its namespaces are a superset of the event's. + if ( !event.rnamespace || handleObj.namespace === false || + event.rnamespace.test( handleObj.namespace ) ) { event.handleObj = handleObj; event.data = handleObj.data; @@ -5286,7 +5509,7 @@ jQuery.event = { enumerable: true, configurable: true, - get: jQuery.isFunction( hook ) ? + get: isFunction( hook ) ? function() { if ( this.originalEvent ) { return hook( this.originalEvent ); @@ -5321,39 +5544,51 @@ jQuery.event = { // Prevent triggered image.load events from bubbling to window.load noBubble: true }, - focus: { + click: { - // Fire native event if possible so blur/focus sequence is correct - trigger: function() { - if ( this !== safeActiveElement() && this.focus ) { - this.focus(); - return false; - } - }, - delegateType: "focusin" - }, - blur: { - trigger: function() { - if ( this === safeActiveElement() && this.blur ) { - this.blur(); - return false; + // Utilize native event to ensure correct state for checkable inputs + setup: function( data ) { + + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; + + // Claim the first handler + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { + + // dataPriv.set( el, "click", ... ) + leverageNative( el, "click", returnTrue ); } + + // Return false to allow normal processing in the caller + return false; }, - delegateType: "focusout" - }, - click: { + trigger: function( data ) { - // For checkbox, fire native event so checked state will be right - trigger: function() { - if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) { - this.click(); - return false; + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; + + // Force setup before triggering a click + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { + + leverageNative( el, "click" ); } + + // Return non-false to allow normal event-path propagation + return true; }, - // For cross-browser consistency, don't fire native .click() on links + // For cross-browser consistency, suppress native .click() on links + // Also prevent it if we're currently inside a leveraged native-event stack _default: function( event ) { - return nodeName( event.target, "a" ); + var target = event.target; + return rcheckableType.test( target.type ) && + target.click && nodeName( target, "input" ) && + dataPriv.get( target, "click" ) || + nodeName( target, "a" ); } }, @@ -5367,8 +5602,95 @@ jQuery.event = { } } } - } -}; + } +}; + +// Ensure the presence of an event listener that handles manually-triggered +// synthetic events by interrupting progress until reinvoked in response to +// *native* events that it fires directly, ensuring that state changes have +// already occurred before other listeners are invoked. +function leverageNative( el, type, expectSync ) { + + // Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add + if ( !expectSync ) { + if ( dataPriv.get( el, type ) === undefined ) { + jQuery.event.add( el, type, returnTrue ); + } + return; + } + + // Register the controller as a special universal handler for all event namespaces + dataPriv.set( el, type, false ); + jQuery.event.add( el, type, { + namespace: false, + handler: function( event ) { + var notAsync, result, + saved = dataPriv.get( this, type ); + + if ( ( event.isTrigger & 1 ) && this[ type ] ) { + + // Interrupt processing of the outer synthetic .trigger()ed event + // Saved data should be false in such cases, but might be a leftover capture object + // from an async native handler (gh-4350) + if ( !saved.length ) { + + // Store arguments for use when handling the inner native event + // There will always be at least one argument (an event object), so this array + // will not be confused with a leftover capture object. + saved = slice.call( arguments ); + dataPriv.set( this, type, saved ); + + // Trigger the native event and capture its result + // Support: IE <=9 - 11+ + // focus() and blur() are asynchronous + notAsync = expectSync( this, type ); + this[ type ](); + result = dataPriv.get( this, type ); + if ( saved !== result || notAsync ) { + dataPriv.set( this, type, false ); + } else { + result = {}; + } + if ( saved !== result ) { + + // Cancel the outer synthetic event + event.stopImmediatePropagation(); + event.preventDefault(); + return result.value; + } + + // If this is an inner synthetic event for an event with a bubbling surrogate + // (focus or blur), assume that the surrogate already propagated from triggering the + // native event and prevent that from happening again here. + // This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the + // bubbling surrogate propagates *after* the non-bubbling base), but that seems + // less bad than duplication. + } else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) { + event.stopPropagation(); + } + + // If this is a native event triggered above, everything is now in order + // Fire an inner synthetic event with the original arguments + } else if ( saved.length ) { + + // ...and capture the result + dataPriv.set( this, type, { + value: jQuery.event.trigger( + + // Support: IE <=9 - 11+ + // Extend with the prototype to reset the above stopImmediatePropagation() + jQuery.extend( saved[ 0 ], jQuery.Event.prototype ), + saved.slice( 1 ), + this + ) + } ); + + // Abort handling of the native event + event.stopImmediatePropagation(); + } + } + } ); +} jQuery.removeEvent = function( elem, type, handle ) { @@ -5421,7 +5743,7 @@ jQuery.Event = function( src, props ) { } // Create a timestamp if incoming event doesn't have one - this.timeStamp = src && src.timeStamp || jQuery.now(); + this.timeStamp = src && src.timeStamp || Date.now(); // Mark it as fixed this[ jQuery.expando ] = true; @@ -5482,6 +5804,7 @@ jQuery.each( { shiftKey: true, view: true, "char": true, + code: true, charCode: true, key: true, keyCode: true, @@ -5528,6 +5851,33 @@ jQuery.each( { } }, jQuery.event.addProp ); +jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) { + jQuery.event.special[ type ] = { + + // Utilize native event if possible so blur/focus sequence is correct + setup: function() { + + // Claim the first handler + // dataPriv.set( this, "focus", ... ) + // dataPriv.set( this, "blur", ... ) + leverageNative( this, type, expectSync ); + + // Return false to allow normal processing in the caller + return false; + }, + trigger: function() { + + // Force setup before trigger + leverageNative( this, type ); + + // Return non-false to allow normal event-path propagation + return true; + }, + + delegateType: delegateType + }; +} ); + // Create mouseenter/leave events using mouseover/out and event-time checks // so that event delegation works in jQuery. // Do the same for pointerenter/pointerleave and pointerover/pointerout @@ -5613,21 +5963,13 @@ jQuery.fn.extend( { var - /* eslint-disable max-len */ - - // See https://github.com/eslint/eslint/issues/3229 - rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi, - - /* eslint-enable */ - - // Support: IE <=10 - 11, Edge 12 - 13 + // Support: IE <=10 - 11, Edge 12 - 13 only // In IE/Edge using regex groups here causes severe slowdowns. // See https://connect.microsoft.com/IE/feedback/details/1736512/ rnoInnerhtml = /\s*$/g; // Prefer a tbody over its parent table for containing new rows @@ -5635,7 +5977,7 @@ function manipulationTarget( elem, content ) { if ( nodeName( elem, "table" ) && nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { - return jQuery( ">tbody", elem )[ 0 ] || elem; + return jQuery( elem ).children( "tbody" )[ 0 ] || elem; } return elem; @@ -5647,10 +5989,8 @@ function disableScript( elem ) { return elem; } function restoreScript( elem ) { - var match = rscriptTypeMasked.exec( elem.type ); - - if ( match ) { - elem.type = match[ 1 ]; + if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) { + elem.type = elem.type.slice( 5 ); } else { elem.removeAttribute( "type" ); } @@ -5659,7 +5999,7 @@ function restoreScript( elem ) { } function cloneCopyEvent( src, dest ) { - var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events; + var i, l, type, pdataOld, udataOld, udataCur, events; if ( dest.nodeType !== 1 ) { return; @@ -5667,13 +6007,11 @@ function cloneCopyEvent( src, dest ) { // 1. Copy private data: events, handlers, etc. if ( dataPriv.hasData( src ) ) { - pdataOld = dataPriv.access( src ); - pdataCur = dataPriv.set( dest, pdataOld ); + pdataOld = dataPriv.get( src ); events = pdataOld.events; if ( events ) { - delete pdataCur.handle; - pdataCur.events = {}; + dataPriv.remove( dest, "handle events" ); for ( type in events ) { for ( i = 0, l = events[ type ].length; i < l; i++ ) { @@ -5709,22 +6047,22 @@ function fixInput( src, dest ) { function domManip( collection, args, callback, ignored ) { // Flatten any nested arrays - args = concat.apply( [], args ); + args = flat( args ); var fragment, first, scripts, hasScripts, node, doc, i = 0, l = collection.length, iNoClone = l - 1, value = args[ 0 ], - isFunction = jQuery.isFunction( value ); + valueIsFunction = isFunction( value ); // We can't cloneNode fragments that contain checked, in WebKit - if ( isFunction || + if ( valueIsFunction || ( l > 1 && typeof value === "string" && !support.checkClone && rchecked.test( value ) ) ) { return collection.each( function( index ) { var self = collection.eq( index ); - if ( isFunction ) { + if ( valueIsFunction ) { args[ 0 ] = value.call( this, index, self.html() ); } domManip( self, args, callback, ignored ); @@ -5778,14 +6116,16 @@ function domManip( collection, args, callback, ignored ) { !dataPriv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) { - if ( node.src ) { + if ( node.src && ( node.type || "" ).toLowerCase() !== "module" ) { // Optional AJAX dependency, but won't run scripts if not present - if ( jQuery._evalUrl ) { - jQuery._evalUrl( node.src ); + if ( jQuery._evalUrl && !node.noModule ) { + jQuery._evalUrl( node.src, { + nonce: node.nonce || node.getAttribute( "nonce" ) + }, doc ); } } else { - DOMEval( node.textContent.replace( rcleanScript, "" ), doc ); + DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc ); } } } @@ -5807,7 +6147,7 @@ function remove( elem, selector, keepData ) { } if ( node.parentNode ) { - if ( keepData && jQuery.contains( node.ownerDocument, node ) ) { + if ( keepData && isAttached( node ) ) { setGlobalEval( getAll( node, "script" ) ); } node.parentNode.removeChild( node ); @@ -5819,13 +6159,13 @@ function remove( elem, selector, keepData ) { jQuery.extend( { htmlPrefilter: function( html ) { - return html.replace( rxhtmlTag, "<$1>" ); + return html; }, clone: function( elem, dataAndEvents, deepDataAndEvents ) { var i, l, srcElements, destElements, clone = elem.cloneNode( true ), - inPage = jQuery.contains( elem.ownerDocument, elem ); + inPage = isAttached( elem ); // Fix IE cloning issues if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && @@ -6065,8 +6405,6 @@ jQuery.each( { return this.pushStack( ret ); }; } ); -var rmargin = ( /^margin/ ); - var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); var getStyles = function( elem ) { @@ -6083,6 +6421,29 @@ var getStyles = function( elem ) { return view.getComputedStyle( elem ); }; +var swap = function( elem, options, callback ) { + var ret, name, + old = {}; + + // Remember the old values, and insert the new ones + for ( name in options ) { + old[ name ] = elem.style[ name ]; + elem.style[ name ] = options[ name ]; + } + + ret = callback.call( elem ); + + // Revert the old values + for ( name in options ) { + elem.style[ name ] = old[ name ]; + } + + return ret; +}; + + +var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" ); + ( function() { @@ -6096,25 +6457,35 @@ var getStyles = function( elem ) { return; } + container.style.cssText = "position:absolute;left:-11111px;width:60px;" + + "margin-top:1px;padding:0;border:0"; div.style.cssText = - "box-sizing:border-box;" + - "position:relative;display:block;" + + "position:relative;display:block;box-sizing:border-box;overflow:scroll;" + "margin:auto;border:1px;padding:1px;" + - "top:1%;width:50%"; - div.innerHTML = ""; - documentElement.appendChild( container ); + "width:60%;top:1%"; + documentElement.appendChild( container ).appendChild( div ); var divStyle = window.getComputedStyle( div ); pixelPositionVal = divStyle.top !== "1%"; // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 - reliableMarginLeftVal = divStyle.marginLeft === "2px"; - boxSizingReliableVal = divStyle.width === "4px"; + reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12; - // Support: Android 4.0 - 4.3 only + // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3 // Some styles come back with percentage values, even though they shouldn't - div.style.marginRight = "50%"; - pixelMarginRightVal = divStyle.marginRight === "4px"; + div.style.right = "60%"; + pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36; + + // Support: IE 9 - 11 only + // Detect misreporting of content dimensions for box-sizing:border-box elements + boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36; + + // Support: IE 9 only + // Detect overflow:scroll screwiness (gh-3699) + // Support: Chrome <=64 + // Don't get tricked when zoom affects offsetWidth (gh-4029) + div.style.position = "absolute"; + scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12; documentElement.removeChild( container ); @@ -6123,7 +6494,12 @@ var getStyles = function( elem ) { div = null; } - var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal, + function roundPixelMeasures( measure ) { + return Math.round( parseFloat( measure ) ); + } + + var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal, + reliableTrDimensionsVal, reliableMarginLeftVal, container = document.createElement( "div" ), div = document.createElement( "div" ); @@ -6138,26 +6514,55 @@ var getStyles = function( elem ) { div.cloneNode( true ).style.backgroundClip = ""; support.clearCloneStyle = div.style.backgroundClip === "content-box"; - container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" + - "padding:0;margin-top:1px;position:absolute"; - container.appendChild( div ); - jQuery.extend( support, { - pixelPosition: function() { - computeStyleTests(); - return pixelPositionVal; - }, boxSizingReliable: function() { computeStyleTests(); return boxSizingReliableVal; }, - pixelMarginRight: function() { + pixelBoxStyles: function() { computeStyleTests(); - return pixelMarginRightVal; + return pixelBoxStylesVal; + }, + pixelPosition: function() { + computeStyleTests(); + return pixelPositionVal; }, reliableMarginLeft: function() { computeStyleTests(); return reliableMarginLeftVal; + }, + scrollboxSize: function() { + computeStyleTests(); + return scrollboxSizeVal; + }, + + // Support: IE 9 - 11+, Edge 15 - 18+ + // IE/Edge misreport `getComputedStyle` of table rows with width/height + // set in CSS while `offset*` properties report correct values. + // Behavior in IE 9 is more subtle than in newer versions & it passes + // some versions of this test; make sure not to make it pass there! + reliableTrDimensions: function() { + var table, tr, trChild, trStyle; + if ( reliableTrDimensionsVal == null ) { + table = document.createElement( "table" ); + tr = document.createElement( "tr" ); + trChild = document.createElement( "div" ); + + table.style.cssText = "position:absolute;left:-11111px"; + tr.style.height = "1px"; + trChild.style.height = "9px"; + + documentElement + .appendChild( table ) + .appendChild( tr ) + .appendChild( trChild ); + + trStyle = window.getComputedStyle( tr ); + reliableTrDimensionsVal = parseInt( trStyle.height ) > 3; + + documentElement.removeChild( table ); + } + return reliableTrDimensionsVal; } } ); } )(); @@ -6180,7 +6585,7 @@ function curCSS( elem, name, computed ) { if ( computed ) { ret = computed.getPropertyValue( name ) || computed[ name ]; - if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) { + if ( ret === "" && !isAttached( elem ) ) { ret = jQuery.style( elem, name ); } @@ -6189,7 +6594,7 @@ function curCSS( elem, name, computed ) { // but width seems to be reliably pixels. // This is against the CSSOM draft spec: // https://drafts.csswg.org/cssom/#resolved-values - if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) { + if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) { // Remember the original values width = style.width; @@ -6236,30 +6641,13 @@ function addGetHookIf( conditionFn, hookFn ) { } -var - - // Swappable if display is none or starts with table - // except "table", "table-cell", or "table-caption" - // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display - rdisplayswap = /^(none|table(?!-c[ea]).+)/, - rcustomProp = /^--/, - cssShow = { position: "absolute", visibility: "hidden", display: "block" }, - cssNormalTransform = { - letterSpacing: "0", - fontWeight: "400" - }, - - cssPrefixes = [ "Webkit", "Moz", "ms" ], - emptyStyle = document.createElement( "div" ).style; +var cssPrefixes = [ "Webkit", "Moz", "ms" ], + emptyStyle = document.createElement( "div" ).style, + vendorProps = {}; -// Return a css property mapped to a potentially vendor prefixed property +// Return a vendor-prefixed property or undefined function vendorPropName( name ) { - // Shortcut for names that are not vendor prefixed - if ( name in emptyStyle ) { - return name; - } - // Check for vendor prefixed names var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), i = cssPrefixes.length; @@ -6272,17 +6660,34 @@ function vendorPropName( name ) { } } -// Return a property mapped along what jQuery.cssProps suggests or to -// a vendor prefixed property. +// Return a potentially-mapped jQuery.cssProps or vendor prefixed property function finalPropName( name ) { - var ret = jQuery.cssProps[ name ]; - if ( !ret ) { - ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name; + var final = jQuery.cssProps[ name ] || vendorProps[ name ]; + + if ( final ) { + return final; } - return ret; + if ( name in emptyStyle ) { + return name; + } + return vendorProps[ name ] = vendorPropName( name ) || name; } -function setPositiveNumber( elem, value, subtract ) { + +var + + // Swappable if display is none or starts with table + // except "table", "table-cell", or "table-caption" + // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display + rdisplayswap = /^(none|table(?!-c[ea]).+)/, + rcustomProp = /^--/, + cssShow = { position: "absolute", visibility: "hidden", display: "block" }, + cssNormalTransform = { + letterSpacing: "0", + fontWeight: "400" + }; + +function setPositiveNumber( _elem, value, subtract ) { // Any relative (+/-) values have already been // normalized at this point @@ -6294,87 +6699,146 @@ function setPositiveNumber( elem, value, subtract ) { value; } -function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) { - var i, - val = 0; - - // If we already have the right measurement, avoid augmentation - if ( extra === ( isBorderBox ? "border" : "content" ) ) { - i = 4; +function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) { + var i = dimension === "width" ? 1 : 0, + extra = 0, + delta = 0; - // Otherwise initialize for horizontal or vertical properties - } else { - i = name === "width" ? 1 : 0; + // Adjustment may not be necessary + if ( box === ( isBorderBox ? "border" : "content" ) ) { + return 0; } for ( ; i < 4; i += 2 ) { - // Both box models exclude margin, so add it if we want it - if ( extra === "margin" ) { - val += jQuery.css( elem, extra + cssExpand[ i ], true, styles ); + // Both box models exclude margin + if ( box === "margin" ) { + delta += jQuery.css( elem, box + cssExpand[ i ], true, styles ); } - if ( isBorderBox ) { + // If we get here with a content-box, we're seeking "padding" or "border" or "margin" + if ( !isBorderBox ) { - // border-box includes padding, so remove it if we want content - if ( extra === "content" ) { - val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); - } + // Add padding + delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); - // At this point, extra isn't border nor margin, so remove border - if ( extra !== "margin" ) { - val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + // For "border" or "margin", add border + if ( box !== "padding" ) { + delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + + // But still keep track of it otherwise + } else { + extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); } + + // If we get here with a border-box (content + padding + border), we're seeking "content" or + // "padding" or "margin" } else { - // At this point, extra isn't content, so add padding - val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + // For "content", subtract padding + if ( box === "content" ) { + delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + } - // At this point, extra isn't content nor padding, so add border - if ( extra !== "padding" ) { - val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + // For "content" or "padding", subtract border + if ( box !== "margin" ) { + delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); } } } - return val; + // Account for positive content-box scroll gutter when requested by providing computedVal + if ( !isBorderBox && computedVal >= 0 ) { + + // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border + // Assuming integer scroll gutter, subtract the rest and round down + delta += Math.max( 0, Math.ceil( + elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] - + computedVal - + delta - + extra - + 0.5 + + // If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter + // Use an explicit zero to avoid NaN (gh-3964) + ) ) || 0; + } + + return delta; } -function getWidthOrHeight( elem, name, extra ) { +function getWidthOrHeight( elem, dimension, extra ) { // Start with computed style - var valueIsBorderBox, - styles = getStyles( elem ), - val = curCSS( elem, name, styles ), - isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; + var styles = getStyles( elem ), + + // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322). + // Fake content-box until we know it's needed to know the true value. + boxSizingNeeded = !support.boxSizingReliable() || extra, + isBorderBox = boxSizingNeeded && + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + valueIsBorderBox = isBorderBox, - // Computed unit is not pixels. Stop here and return. + val = curCSS( elem, dimension, styles ), + offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ); + + // Support: Firefox <=54 + // Return a confounding non-pixel value or feign ignorance, as appropriate. if ( rnumnonpx.test( val ) ) { - return val; + if ( !extra ) { + return val; + } + val = "auto"; } - // Check for style in case a browser which returns unreliable values - // for getComputedStyle silently falls back to the reliable elem.style - valueIsBorderBox = isBorderBox && - ( support.boxSizingReliable() || val === elem.style[ name ] ); - // Fall back to offsetWidth/Height when value is "auto" - // This happens for inline elements with no explicit setting (gh-3571) - if ( val === "auto" ) { - val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ]; + // Support: IE 9 - 11 only + // Use offsetWidth/offsetHeight for when box sizing is unreliable. + // In those cases, the computed value can be trusted to be border-box. + if ( ( !support.boxSizingReliable() && isBorderBox || + + // Support: IE 10 - 11+, Edge 15 - 18+ + // IE/Edge misreport `getComputedStyle` of table rows with width/height + // set in CSS while `offset*` properties report correct values. + // Interestingly, in some cases IE 9 doesn't suffer from this issue. + !support.reliableTrDimensions() && nodeName( elem, "tr" ) || + + // Fall back to offsetWidth/offsetHeight when value is "auto" + // This happens for inline elements with no explicit setting (gh-3571) + val === "auto" || + + // Support: Android <=4.1 - 4.3 only + // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602) + !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) && + + // Make sure the element is visible & connected + elem.getClientRects().length ) { + + isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; + + // Where available, offsetWidth/offsetHeight approximate border box dimensions. + // Where not available (e.g., SVG), assume unreliable box-sizing and interpret the + // retrieved value as a content box dimension. + valueIsBorderBox = offsetProp in elem; + if ( valueIsBorderBox ) { + val = elem[ offsetProp ]; + } } - // Normalize "", auto, and prepare for extra + // Normalize "" and auto val = parseFloat( val ) || 0; - // Use the active box-sizing model to add/subtract irrelevant styles + // Adjust for the element's box model return ( val + - augmentWidthOrHeight( + boxModelAdjustment( elem, - name, + dimension, extra || ( isBorderBox ? "border" : "content" ), valueIsBorderBox, - styles + styles, + + // Provide the current computed size to request scroll gutter calculation (gh-3589) + val ) ) + "px"; } @@ -6404,6 +6868,13 @@ jQuery.extend( { "flexGrow": true, "flexShrink": true, "fontWeight": true, + "gridArea": true, + "gridColumn": true, + "gridColumnEnd": true, + "gridColumnStart": true, + "gridRow": true, + "gridRowEnd": true, + "gridRowStart": true, "lineHeight": true, "opacity": true, "order": true, @@ -6415,9 +6886,7 @@ jQuery.extend( { // Add in properties whose names you wish to fix before // setting or getting the value - cssProps: { - "float": "cssFloat" - }, + cssProps: {}, // Get and set the style property on a DOM Node style: function( elem, name, value, extra ) { @@ -6429,7 +6898,7 @@ jQuery.extend( { // Make sure that we're working with the right name var ret, type, hooks, - origName = jQuery.camelCase( name ), + origName = camelCase( name ), isCustomProp = rcustomProp.test( name ), style = elem.style; @@ -6461,7 +6930,9 @@ jQuery.extend( { } // If a number was passed in, add the unit (except for certain CSS properties) - if ( type === "number" ) { + // The isCustomProp check can be removed in jQuery 4.0 when we only auto-append + // "px" to a few hardcoded values. + if ( type === "number" && !isCustomProp ) { value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); } @@ -6497,7 +6968,7 @@ jQuery.extend( { css: function( elem, name, extra, styles ) { var val, num, hooks, - origName = jQuery.camelCase( name ), + origName = camelCase( name ), isCustomProp = rcustomProp.test( name ); // Make sure that we're working with the right name. We don't @@ -6535,8 +7006,8 @@ jQuery.extend( { } } ); -jQuery.each( [ "height", "width" ], function( i, name ) { - jQuery.cssHooks[ name ] = { +jQuery.each( [ "height", "width" ], function( _i, dimension ) { + jQuery.cssHooks[ dimension ] = { get: function( elem, computed, extra ) { if ( computed ) { @@ -6552,29 +7023,52 @@ jQuery.each( [ "height", "width" ], function( i, name ) { // in IE throws an error. ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? swap( elem, cssShow, function() { - return getWidthOrHeight( elem, name, extra ); + return getWidthOrHeight( elem, dimension, extra ); } ) : - getWidthOrHeight( elem, name, extra ); + getWidthOrHeight( elem, dimension, extra ); } }, set: function( elem, value, extra ) { var matches, - styles = extra && getStyles( elem ), - subtract = extra && augmentWidthOrHeight( - elem, - name, - extra, + styles = getStyles( elem ), + + // Only read styles.position if the test has a chance to fail + // to avoid forcing a reflow. + scrollboxSizeBuggy = !support.scrollboxSize() && + styles.position === "absolute", + + // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991) + boxSizingNeeded = scrollboxSizeBuggy || extra, + isBorderBox = boxSizingNeeded && jQuery.css( elem, "boxSizing", false, styles ) === "border-box", - styles + subtract = extra ? + boxModelAdjustment( + elem, + dimension, + extra, + isBorderBox, + styles + ) : + 0; + + // Account for unreliable border-box dimensions by comparing offset* to computed and + // faking a content-box to get border and padding (gh-3699) + if ( isBorderBox && scrollboxSizeBuggy ) { + subtract -= Math.ceil( + elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] - + parseFloat( styles[ dimension ] ) - + boxModelAdjustment( elem, dimension, "border", false, styles ) - + 0.5 ); + } // Convert to pixels if value adjustment is needed if ( subtract && ( matches = rcssNum.exec( value ) ) && ( matches[ 3 ] || "px" ) !== "px" ) { - elem.style[ name ] = value; - value = jQuery.css( elem, name ); + elem.style[ dimension ] = value; + value = jQuery.css( elem, dimension ); } return setPositiveNumber( elem, value, subtract ); @@ -6618,7 +7112,7 @@ jQuery.each( { } }; - if ( !rmargin.test( prefix ) ) { + if ( prefix !== "margin" ) { jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; } } ); @@ -6728,9 +7222,9 @@ Tween.propHooks = { // Use .style if available and use plain properties where available. if ( jQuery.fx.step[ tween.prop ] ) { jQuery.fx.step[ tween.prop ]( tween ); - } else if ( tween.elem.nodeType === 1 && - ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || - jQuery.cssHooks[ tween.prop ] ) ) { + } else if ( tween.elem.nodeType === 1 && ( + jQuery.cssHooks[ tween.prop ] || + tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) { jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); } else { tween.elem[ tween.prop ] = tween.now; @@ -6789,7 +7283,7 @@ function createFxNow() { window.setTimeout( function() { fxNow = undefined; } ); - return ( fxNow = jQuery.now() ); + return ( fxNow = Date.now() ); } // Generate parameters to create a standard animation @@ -6893,9 +7387,10 @@ function defaultPrefilter( elem, props, opts ) { // Restrict "overflow" and "display" styles during box animations if ( isBox && elem.nodeType === 1 ) { - // Support: IE <=9 - 11, Edge 12 - 13 + // Support: IE <=9 - 11, Edge 12 - 15 // Record all 3 overflow attributes because IE does not infer the shorthand - // from identically-valued overflowX and overflowY + // from identically-valued overflowX and overflowY and Edge just mirrors + // the overflowX value there. opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; // Identify a display type, preferring old show/hide data over the CSS cascade @@ -7003,7 +7498,7 @@ function propFilter( props, specialEasing ) { // camelCase, specialEasing and expand cssHook pass for ( index in props ) { - name = jQuery.camelCase( index ); + name = camelCase( index ); easing = specialEasing[ name ]; value = props[ index ]; if ( Array.isArray( value ) ) { @@ -7128,9 +7623,9 @@ function Animation( elem, properties, options ) { for ( ; index < length; index++ ) { result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); if ( result ) { - if ( jQuery.isFunction( result.stop ) ) { + if ( isFunction( result.stop ) ) { jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = - jQuery.proxy( result.stop, result ); + result.stop.bind( result ); } return result; } @@ -7138,7 +7633,7 @@ function Animation( elem, properties, options ) { jQuery.map( props, createTween, animation ); - if ( jQuery.isFunction( animation.opts.start ) ) { + if ( isFunction( animation.opts.start ) ) { animation.opts.start.call( elem, animation ); } @@ -7171,7 +7666,7 @@ jQuery.Animation = jQuery.extend( Animation, { }, tweener: function( props, callback ) { - if ( jQuery.isFunction( props ) ) { + if ( isFunction( props ) ) { callback = props; props = [ "*" ]; } else { @@ -7203,9 +7698,9 @@ jQuery.Animation = jQuery.extend( Animation, { jQuery.speed = function( speed, easing, fn ) { var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { complete: fn || !fn && easing || - jQuery.isFunction( speed ) && speed, + isFunction( speed ) && speed, duration: speed, - easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing + easing: fn && easing || easing && !isFunction( easing ) && easing }; // Go to the end state if fx are off @@ -7232,7 +7727,7 @@ jQuery.speed = function( speed, easing, fn ) { opt.old = opt.complete; opt.complete = function() { - if ( jQuery.isFunction( opt.old ) ) { + if ( isFunction( opt.old ) ) { opt.old.call( this ); } @@ -7284,7 +7779,7 @@ jQuery.fn.extend( { clearQueue = type; type = undefined; } - if ( clearQueue && type !== false ) { + if ( clearQueue ) { this.queue( type || "fx", [] ); } @@ -7367,7 +7862,7 @@ jQuery.fn.extend( { } } ); -jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) { +jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) { var cssFn = jQuery.fn[ name ]; jQuery.fn[ name ] = function( speed, easing, callback ) { return speed == null || typeof speed === "boolean" ? @@ -7396,7 +7891,7 @@ jQuery.fx.tick = function() { i = 0, timers = jQuery.timers; - fxNow = jQuery.now(); + fxNow = Date.now(); for ( ; i < timers.length; i++ ) { timer = timers[ i ]; @@ -7588,7 +8083,7 @@ boolHook = { } }; -jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) { +jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) { var getter = attrHandle[ name ] || jQuery.find.attr; attrHandle[ name ] = function( elem, name, isXML ) { @@ -7749,7 +8244,7 @@ jQuery.each( [ // Strip and collapse whitespace according to HTML spec - // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace + // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace function stripAndCollapse( value ) { var tokens = value.match( rnothtmlwhite ) || []; return tokens.join( " " ); @@ -7760,20 +8255,30 @@ function getClass( elem ) { return elem.getAttribute && elem.getAttribute( "class" ) || ""; } +function classesToArray( value ) { + if ( Array.isArray( value ) ) { + return value; + } + if ( typeof value === "string" ) { + return value.match( rnothtmlwhite ) || []; + } + return []; +} + jQuery.fn.extend( { addClass: function( value ) { var classes, elem, cur, curValue, clazz, j, finalValue, i = 0; - if ( jQuery.isFunction( value ) ) { + if ( isFunction( value ) ) { return this.each( function( j ) { jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); } ); } - if ( typeof value === "string" && value ) { - classes = value.match( rnothtmlwhite ) || []; + classes = classesToArray( value ); + if ( classes.length ) { while ( ( elem = this[ i++ ] ) ) { curValue = getClass( elem ); cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); @@ -7802,7 +8307,7 @@ jQuery.fn.extend( { var classes, elem, cur, curValue, clazz, j, finalValue, i = 0; - if ( jQuery.isFunction( value ) ) { + if ( isFunction( value ) ) { return this.each( function( j ) { jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); } ); @@ -7812,9 +8317,9 @@ jQuery.fn.extend( { return this.attr( "class", "" ); } - if ( typeof value === "string" && value ) { - classes = value.match( rnothtmlwhite ) || []; + classes = classesToArray( value ); + if ( classes.length ) { while ( ( elem = this[ i++ ] ) ) { curValue = getClass( elem ); @@ -7844,13 +8349,14 @@ jQuery.fn.extend( { }, toggleClass: function( value, stateVal ) { - var type = typeof value; + var type = typeof value, + isValidValue = type === "string" || Array.isArray( value ); - if ( typeof stateVal === "boolean" && type === "string" ) { + if ( typeof stateVal === "boolean" && isValidValue ) { return stateVal ? this.addClass( value ) : this.removeClass( value ); } - if ( jQuery.isFunction( value ) ) { + if ( isFunction( value ) ) { return this.each( function( i ) { jQuery( this ).toggleClass( value.call( this, i, getClass( this ), stateVal ), @@ -7862,12 +8368,12 @@ jQuery.fn.extend( { return this.each( function() { var className, i, self, classNames; - if ( type === "string" ) { + if ( isValidValue ) { // Toggle individual class names i = 0; self = jQuery( this ); - classNames = value.match( rnothtmlwhite ) || []; + classNames = classesToArray( value ); while ( ( className = classNames[ i++ ] ) ) { @@ -7926,7 +8432,7 @@ var rreturn = /\r/g; jQuery.fn.extend( { val: function( value ) { - var hooks, ret, isFunction, + var hooks, ret, valueIsFunction, elem = this[ 0 ]; if ( !arguments.length ) { @@ -7955,7 +8461,7 @@ jQuery.fn.extend( { return; } - isFunction = jQuery.isFunction( value ); + valueIsFunction = isFunction( value ); return this.each( function( i ) { var val; @@ -7964,7 +8470,7 @@ jQuery.fn.extend( { return; } - if ( isFunction ) { + if ( valueIsFunction ) { val = value.call( this, i, jQuery( this ).val() ); } else { val = value; @@ -8106,18 +8612,24 @@ jQuery.each( [ "radio", "checkbox" ], function() { // Return jQuery for attributes-only inclusion -var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/; +support.focusin = "onfocusin" in window; + + +var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/, + stopPropagationCallback = function( e ) { + e.stopPropagation(); + }; jQuery.extend( jQuery.event, { trigger: function( event, data, elem, onlyHandlers ) { - var i, cur, tmp, bubbleType, ontype, handle, special, + var i, cur, tmp, bubbleType, ontype, handle, special, lastElement, eventPath = [ elem || document ], type = hasOwn.call( event, "type" ) ? event.type : event, namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; - cur = tmp = elem = elem || document; + cur = lastElement = tmp = elem = elem || document; // Don't do events on text and comment nodes if ( elem.nodeType === 3 || elem.nodeType === 8 ) { @@ -8169,7 +8681,7 @@ jQuery.extend( jQuery.event, { // Determine event propagation path in advance, per W3C events spec (#9951) // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) - if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) { + if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) { bubbleType = special.delegateType || type; if ( !rfocusMorph.test( bubbleType + type ) ) { @@ -8189,13 +8701,15 @@ jQuery.extend( jQuery.event, { // Fire handlers on the event path i = 0; while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { - + lastElement = cur; event.type = i > 1 ? bubbleType : special.bindType || type; // jQuery handler - handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] && + handle = ( + dataPriv.get( cur, "events" ) || Object.create( null ) + )[ event.type ] && dataPriv.get( cur, "handle" ); if ( handle ) { handle.apply( cur, data ); @@ -8221,7 +8735,7 @@ jQuery.extend( jQuery.event, { // Call a native DOM method on the target with the same name as the event. // Don't do default actions on window, that's where global variables be (#6170) - if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) { + if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) { // Don't re-trigger an onFOO event when we call its FOO() method tmp = elem[ ontype ]; @@ -8232,7 +8746,17 @@ jQuery.extend( jQuery.event, { // Prevent re-triggering of the same event, since we already bubbled it above jQuery.event.triggered = type; + + if ( event.isPropagationStopped() ) { + lastElement.addEventListener( type, stopPropagationCallback ); + } + elem[ type ](); + + if ( event.isPropagationStopped() ) { + lastElement.removeEventListener( type, stopPropagationCallback ); + } + jQuery.event.triggered = undefined; if ( tmp ) { @@ -8278,31 +8802,6 @@ jQuery.fn.extend( { } ); -jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " + - "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " + - "change select submit keydown keypress keyup contextmenu" ).split( " " ), - function( i, name ) { - - // Handle event binding - jQuery.fn[ name ] = function( data, fn ) { - return arguments.length > 0 ? - this.on( name, null, data, fn ) : - this.trigger( name ); - }; -} ); - -jQuery.fn.extend( { - hover: function( fnOver, fnOut ) { - return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver ); - } -} ); - - - - -support.focusin = "onfocusin" in window; - - // Support: Firefox <=44 // Firefox doesn't have focus(in | out) events // Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 @@ -8321,7 +8820,10 @@ if ( !support.focusin ) { jQuery.event.special[ fix ] = { setup: function() { - var doc = this.ownerDocument || this, + + // Handle: regular nodes (via `this.ownerDocument`), window + // (via `this.document`) & document (via `this`). + var doc = this.ownerDocument || this.document || this, attaches = dataPriv.access( doc, fix ); if ( !attaches ) { @@ -8330,7 +8832,7 @@ if ( !support.focusin ) { dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); }, teardown: function() { - var doc = this.ownerDocument || this, + var doc = this.ownerDocument || this.document || this, attaches = dataPriv.access( doc, fix ) - 1; if ( !attaches ) { @@ -8346,7 +8848,7 @@ if ( !support.focusin ) { } var location = window.location; -var nonce = jQuery.now(); +var nonce = { guid: Date.now() }; var rquery = ( /\?/ ); @@ -8404,7 +8906,7 @@ function buildParams( prefix, obj, traditional, add ) { } } ); - } else if ( !traditional && jQuery.type( obj ) === "object" ) { + } else if ( !traditional && toType( obj ) === "object" ) { // Serialize object item. for ( name in obj ) { @@ -8426,7 +8928,7 @@ jQuery.param = function( a, traditional ) { add = function( key, valueOrFunction ) { // If value is a function, invoke it and use its return value - var value = jQuery.isFunction( valueOrFunction ) ? + var value = isFunction( valueOrFunction ) ? valueOrFunction() : valueOrFunction; @@ -8434,6 +8936,10 @@ jQuery.param = function( a, traditional ) { encodeURIComponent( value == null ? "" : value ); }; + if ( a == null ) { + return ""; + } + // If an array was passed in, assume that it is an array of form elements. if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { @@ -8474,7 +8980,7 @@ jQuery.fn.extend( { rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && ( this.checked || !rcheckableType.test( type ) ); } ) - .map( function( i, elem ) { + .map( function( _i, elem ) { var val = jQuery( this ).val(); if ( val == null ) { @@ -8544,7 +9050,7 @@ function addToPrefiltersOrTransports( structure ) { i = 0, dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; - if ( jQuery.isFunction( func ) ) { + if ( isFunction( func ) ) { // For each dataType in the dataTypeExpression while ( ( dataType = dataTypes[ i++ ] ) ) { @@ -8936,12 +9442,14 @@ jQuery.extend( { if ( !responseHeaders ) { responseHeaders = {}; while ( ( match = rheaders.exec( responseHeadersString ) ) ) { - responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ]; + responseHeaders[ match[ 1 ].toLowerCase() + " " ] = + ( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] ) + .concat( match[ 2 ] ); } } - match = responseHeaders[ key.toLowerCase() ]; + match = responseHeaders[ key.toLowerCase() + " " ]; } - return match == null ? null : match; + return match == null ? null : match.join( ", " ); }, // Raw string @@ -9016,7 +9524,7 @@ jQuery.extend( { if ( s.crossDomain == null ) { urlAnchor = document.createElement( "a" ); - // Support: IE <=8 - 11, Edge 12 - 13 + // Support: IE <=8 - 11, Edge 12 - 15 // IE throws exception on accessing the href property if url is malformed, // e.g. http://example.com:80x/ try { @@ -9074,8 +9582,8 @@ jQuery.extend( { // Remember the hash so we can put it back uncached = s.url.slice( cacheURL.length ); - // If data is available, append data to url - if ( s.data ) { + // If data is available and should be processed, append data to url + if ( s.data && ( s.processData || typeof s.data === "string" ) ) { cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; // #9682: remove data so that it's not used in an eventual retry @@ -9085,7 +9593,8 @@ jQuery.extend( { // Add or update anti-cache param if needed if ( s.cache === false ) { cacheURL = cacheURL.replace( rantiCache, "$1" ); - uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached; + uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) + + uncached; } // Put hash and anti-cache on the URL that will be requested (gh-1732) @@ -9218,6 +9727,11 @@ jQuery.extend( { response = ajaxHandleResponses( s, jqXHR, responses ); } + // Use a noop converter for missing script + if ( !isSuccess && jQuery.inArray( "script", s.dataTypes ) > -1 ) { + s.converters[ "text script" ] = function() {}; + } + // Convert no matter what (that way responseXXX fields are always set) response = ajaxConvert( s, response, jqXHR, isSuccess ); @@ -9308,11 +9822,11 @@ jQuery.extend( { } } ); -jQuery.each( [ "get", "post" ], function( i, method ) { +jQuery.each( [ "get", "post" ], function( _i, method ) { jQuery[ method ] = function( url, data, callback, type ) { // Shift arguments if data argument was omitted - if ( jQuery.isFunction( data ) ) { + if ( isFunction( data ) ) { type = type || callback; callback = data; data = undefined; @@ -9329,8 +9843,17 @@ jQuery.each( [ "get", "post" ], function( i, method ) { }; } ); +jQuery.ajaxPrefilter( function( s ) { + var i; + for ( i in s.headers ) { + if ( i.toLowerCase() === "content-type" ) { + s.contentType = s.headers[ i ] || ""; + } + } +} ); + -jQuery._evalUrl = function( url ) { +jQuery._evalUrl = function( url, options, doc ) { return jQuery.ajax( { url: url, @@ -9340,7 +9863,16 @@ jQuery._evalUrl = function( url ) { cache: true, async: false, global: false, - "throws": true + + // Only evaluate the response if it is successful (gh-4126) + // dataFilter is not invoked for failure responses, so using it instead + // of the default converter is kludgy but it works. + converters: { + "text script": function() {} + }, + dataFilter: function( response ) { + jQuery.globalEval( response, options, doc ); + } } ); }; @@ -9350,7 +9882,7 @@ jQuery.fn.extend( { var wrap; if ( this[ 0 ] ) { - if ( jQuery.isFunction( html ) ) { + if ( isFunction( html ) ) { html = html.call( this[ 0 ] ); } @@ -9376,7 +9908,7 @@ jQuery.fn.extend( { }, wrapInner: function( html ) { - if ( jQuery.isFunction( html ) ) { + if ( isFunction( html ) ) { return this.each( function( i ) { jQuery( this ).wrapInner( html.call( this, i ) ); } ); @@ -9396,10 +9928,10 @@ jQuery.fn.extend( { }, wrap: function( html ) { - var isFunction = jQuery.isFunction( html ); + var htmlIsFunction = isFunction( html ); return this.each( function( i ) { - jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html ); + jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html ); } ); }, @@ -9491,7 +10023,8 @@ jQuery.ajaxTransport( function( options ) { return function() { if ( callback ) { callback = errorCallback = xhr.onload = - xhr.onerror = xhr.onabort = xhr.onreadystatechange = null; + xhr.onerror = xhr.onabort = xhr.ontimeout = + xhr.onreadystatechange = null; if ( type === "abort" ) { xhr.abort(); @@ -9531,7 +10064,7 @@ jQuery.ajaxTransport( function( options ) { // Listen to events xhr.onload = callback(); - errorCallback = xhr.onerror = callback( "error" ); + errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" ); // Support: IE 9 only // Use onreadystatechange to replace onabort @@ -9622,24 +10155,21 @@ jQuery.ajaxPrefilter( "script", function( s ) { // Bind script tag hack transport jQuery.ajaxTransport( "script", function( s ) { - // This transport only deals with cross domain requests - if ( s.crossDomain ) { + // This transport only deals with cross domain or forced-by-attrs requests + if ( s.crossDomain || s.scriptAttrs ) { var script, callback; return { send: function( _, complete ) { - script = jQuery( " + + + + Index — MySQL-DBConnector 1.3.1 documentation + + + + + + + + + + + + + + + + + + + + + + + + + + Skip to content +
+ +
+ + +
+ + + + +
+
+ +
+
+
+ +
+
+
+
+
+
+ + +
+
+
+ +
+ +
+
+
+
+ + + + + \ No newline at end of file diff --git a/docs/build/html/.buildinfo b/docs/build/html/.buildinfo index 2e4fe30..938885c 100644 --- a/docs/build/html/.buildinfo +++ b/docs/build/html/.buildinfo @@ -1,4 +1,4 @@ # Sphinx build info version 1 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done. -config: afdfe3eaf6b0f76469cadb0c04fadb56 +config: 5a18600babc4a6aa5275e6990457ff3d tags: 645f666f9bcd5a90fca523b33c5a78b7 diff --git a/docs/build/html/_modules/dbconnector/dbconnector.html b/docs/build/html/_modules/dbconnector/dbconnector.html index 3087b0a..d0c9217 100644 --- a/docs/build/html/_modules/dbconnector/dbconnector.html +++ b/docs/build/html/_modules/dbconnector/dbconnector.html @@ -1,40 +1,72 @@ - - - - - - - - dbconnector.dbconnector — MySQL-DBConnector 1.1.2 documentation - - - - - - - - - + + + + + + dbconnector.dbconnector — MySQL-DBConnector 1.3.1 documentation + + + + + + + + + - - - -
-
-
-
- + + + +
+ + +
+ +
+
+
+
    +
  • »
    • +
  • Module code »
    • +
  • dbconnector.dbconnector
    • +
  • +
    • +
+
+
+
+
+

Source code for dbconnector.dbconnector

 """
 A wrapper for the MySQL Python connector that provides additional resilience and
@@ -45,75 +77,57 @@ 
Source code for dbconnector.dbconnector
 
 """
 
-from datetime import datetime
+from datetime import datetime
 import time as TIME
 import os
 import sys
 import inspect
-import mysql.connector
-from mysql.connector import errorcode, connection
+from logging import info, debug, warning, error, critical, exception
+import re
+from typing import Optional
 
-class GenericErrorLogger:
-    """Basic error logging to a file (optional)."""
-    def __init__(self, filename):
-        self.logfile = filename
-
-    def write_to_log(self, msg):
-        """Log the error message to the logfile along with a datestamp and the name of the script
-        (in case of shared logfiles).
-
-        Parameters
-        ----------
-        `msg` : string
-            Message to be recorded in *self.logfile*.
-        """
-        timestamp = datetime.now().strftime('%Y-%m-%dT%H:%M:%S')
-        scriptname = os.path.basename(__file__)
-        fid = open(self.logfile, 'a')
-        fid.write(timestamp + " " + scriptname + ": " + str(msg) + "\n")
-        fid.close()
-        return
+from pandas import DataFrame
+import mysql.connector
+from mysql.connector import errorcode, connection
 
 class DBConnectorException(Exception):
     """An Exception specific to the DBConnector class."""
-    def __init__(self, logfile, msg):
+    def __init__(self, msg):
         try:
             caller_file = inspect.stack()[2][1]
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
         except:
             caller_file = os.path.basename(__file__)
-        self.msg = "%s (in '%s')" % (msg, caller_file)
-        if logfile:
-            logger = GenericErrorLogger(logfile)
-            logger.write_to_log(self.msg)
-    def __str__(self):
+        error(msg)
+        self.msg = f"{msg} (in '{caller_file}')"
+
+    def __str__(self):
         return self.msg
 
 class DBConnectorLog:
     """Record, read and analyse DBConnector stats."""
-    def __init__(self, logfile, db_config):
+    def __init__(self, logfile, conn_args):
         self.logfile = logfile
         self.status = {0: "success", 1: "error", 2: "warning"}
-        if "database" in db_config:
-            self.host = "{}.{}.{}".format(db_config["host"], db_config["user"],
-                                          db_config["database"])
+        if "option_files" in conn_args:
+            _, self.host = os.path.split(conn_args["option_files"])
         else:
-            _, self.host = os.path.split(db_config["option_files"])
+            self.host = f"{conn_args['host']}.{conn_args['user']}.{conn_args['database']}"
 
-    def log_query(self, sql, start, time_taken, status=0, error=None):
+    def log_query(self, sql, start, time_taken, status=0, err=None):
         """Append query details to the log file."""
         if self.logfile is None:
             return
         status = self.status[status]
         with open(self.logfile, "ab") as log:
-            log.write("{}|{}|{}|{}|{}|{}|{}\n".format(datetime.utcnow(), self.host, start, sql,
-                                                      status, error, time_taken))
+            log.write(f"{datetime.utcnow()}|{self.host}|{start}|{sql}|{status}|{err}|"
+                      f"{time_taken}\n")
 
 class DBConnectionPool:
     """Handle connections to the DB manually rather than relying on MySQL connection pooling."""
-    def __init__(self, pool_size, logfile, **kwargs):
-        self.conn_args = kwargs
-        self.logfile = logfile
-        self.raise_on_warnings = kwargs.get('raise_on_warnings', False)
+    def __init__(self, connector_args: dict, pool_size: int):
+        self.conn_args = connector_args
         self.connection_pool = []
         self.connections = 0
         self.max_pool = pool_size
@@ -122,7 +136,7 @@ 
Source code for dbconnector.dbconnector
         """Create a new connection using *self.conn_args*."""
         return mysql.connector.connect(**self.conn_args)
 
-    def get_connection(self):
+    def _get_connection(self):
         """
         Take a connection out of the pool. If the pool is exhausted, either create a new connection
         or raise a "Connection pool exhausted" exception if the maximum pool size has been reached.
@@ -136,54 +150,48 @@ 
Source code for dbconnector.dbconnector
                 cnx = self._new_connection()
                 self.connections += 1
             else:
-                raise DBConnectorException(logfile=self.logfile, msg="Connection pool exhausted.")
+                raise DBConnectorException(msg="Connection pool exhausted.")
         return cnx
 
-    def return_connection(self, cnx):
+    def _return_connection(self, cnx):
         """
         Return a connection to the pool. Incoming connections are tested and if they are no longer
-        usable will be disgarded using *DBConnectionPool.close_connection*, which frees up the slot.
+        usable will be disgarded using *DBConnectionPool._close_connection*, which frees up the slot.
         """
-        if isinstance(cnx, connection.MySQLConnection):
-            if cnx.is_connected():
-                self.connection_pool.append(cnx)
-            else:
-                self.close_connection(cnx)
+        if isinstance(cnx, connection.MySQLConnection) and cnx.is_connected():
+            self.connection_pool.append(cnx)
         else:
-            self.warning("Tried to return an object that is not connection.MySQLConnection object "
-                         "to the pool...")
+            self._close_connection(cnx)
         return
 
-    def close_connection(self, cnx):
+    def _close_connection(self, cnx):
         """Permanently close a connection and free up a slot in *self.connections*."""
         if isinstance(cnx, connection.MySQLConnection):
             try:
                 cnx.close()
+            except KeyboardInterrupt:
+                raise KeyboardInterrupt
             except:
                 self.warning("Failed to close connection...")
-        else:
-            self.warning("Tried to close a non-connection.MySQLConnection object...")
         self.connections -= 1
         return
 
     def close_all(self):
         """Close all connections when done with them for maximum DB efficiency."""
         for cnx in self.connection_pool:
-            self.close_connection(cnx)
+            self._close_connection(cnx)
         if self.connections != 0:
-            self.warning("Failed to account for all connections in DBConnectionPool.close_all()...")
+            self.warning("Failed to account for all connections in DBConnectionPool.close_all()")
         return
 
-    def warning(self, msg):
+    def warning(self, msg: str):
         """
-        Print a nicely formatted warning or raise as an error if *self.raise_on_warnings* is set to
-        True.
+        Log a warning or raise as an error if *self.conn_args["raise_on_warnings"]* is set to True.
         """
-        msg = "WARNING! %s" % msg
-        if self.raise_on_warnings:
-            raise DBConnectorException(logfile=self.logfile, msg=msg)
+        if self.conn_args["raise_on_warnings"]:
+            raise DBConnectorException(msg=msg)
         else:
-            print(msg)
+            warning(msg)
         return
 
 
[docs]class DBConnector:
@@ -192,61 +200,54 @@ 
Source code for dbconnector.dbconnector
 
     Parameters
     ----------
-    `mysql_defaults` : string
-        Absolute path to the mysql options file, which must contain 'host', 'user', 'password' and
-        'database' client options.
-    `logfile` : string
-        Absolute path to the file into which errors should be logged.
-    `db_config` : dict
-        Config for the DB connection if no mysql option file is passed. Must contain keys for
-        'user', 'password', 'database' and 'host'.
-    `session_tz` : string
-        Optionally set the session timezone (useful if working with timestamps). Use any of the time
-        zone names listed `here <https://en.wikipedia.org/wiki/List_of_tz_database_time_zones>`_.
-        Defaults to "UTC".
-    `use_pure` : boolean
-        Whether to use the pure Python implementation of MySQL connector (True) or use the C
-        extentsion (False). Default is True i.e. pure Python. N.B. C extension is much quicker when
-        returning large datasets - see `Connector/Python C Extension Docs
-        <https://dev.mysql.com/doc/connector-python/en/connector-python-cext.html>`_.
-    `query_log` : string
+    connector_args : dict
+        A dictionary of connect args to pass to `mysql.connector.connect()`. The full list of args
+        can be found `here <https://dev.mysql.com/doc/connector-python/en/connector-python-connectargs.html>`_.
+        Some args are set to default values which override those of the `mysql-connector-python`
+        lib. These are:
+
+        - `time_zone`: "UTC"
+        - `connection_timeout`: 60
+        - `buffered`: True
+        - `get_warnings`: True
+        - `raise_on_warnings`: False
+        - `use_pure`: True
+    query_log : string, optional
         Optionally specify a log file where query stats will be logged.
+    pool_size : int, optional
+        Optionally specify the maximum pool size (i.e. number of connections open at any time).
+        Default is 1.
+    cnx_retries : int, optional
+        Optionally specify the maximum number of times to retry failed connections/queries.
+        Default is 10.
+    sleep_interval : int, optional
+        Optionally specify time (in seconds) to sleep inbetween failed connections/queries which are
+        retried. This code uses an exponentil back-off, so the sleep time will double after each
+        failed connection / query - this arg determines the initial sleep time. Default is 1.
+
     Notes
     -----
-    You must either pass the mysql defaults file (which must contain all of the required
-    parameters) or pass the db_config dict with keys: 'host', 'user', 'password', 'database'.
-    Warnings
-    --------
-    Logging is currently not available.
+    Some `connector_args` have no defaults and are always required: 'user', 'password', 'database'.
     """
-    def __init__(self, mysql_defaults=None, logfile=None, db_config=None, session_tz="UTC",
-                 use_pure=True, query_log=None):
-        default_timeout = 60
-        pool_size = 1
-        if mysql_defaults:
-            self.db_config = {
-                "option_files": mysql_defaults,
-                "connection_timeout": default_timeout,
-                "buffered": True,
-                "get_warnings": True,
-                "raise_on_warnings": False,
-                "use_pure": use_pure,
-            }
-        else:
-            self.db_config = {
-                "user": db_config["user"],
-                "password": db_config["password"],
-                "database": db_config["database"],
-                "host": db_config["host"],
-                "connection_timeout": default_timeout,
-                "buffered": True,
-                "get_warnings": True,
-                "raise_on_warnings": False,
-                "use_pure": use_pure,
-            }
-        self.pool = DBConnectionPool(pool_size, logfile, **self.db_config)
-        self.logfile = logfile
-        self.excusable_errors = (
+    def __init__(
+        self,
+        connector_args: dict,
+        query_log: Optional[str] = None,
+        pool_size: int = 1,
+        cnx_retries: int = 10,
+        sleep_interval: int = 1
+    ) -> None:
+        self.connector_args = {
+            "time_zone": "UTC",
+            "connection_timeout": 60,
+            "buffered": True,
+            "get_warnings": True,
+            "raise_on_warnings": False,
+            "use_pure": True,
+        }
+        self.connector_args.update(connector_args)
+        self.pool = DBConnectionPool(self.connector_args, pool_size)
+        self.retry_errors = (
             #Can't connect to MySQL server on...
             errorcode.CR_CONN_HOST_ERROR,
             errorcode.CR_IPSOCK_ERROR,
@@ -259,17 +260,47 @@ 
Source code for dbconnector.dbconnector
             errorcode.ER_LOCK_DEADLOCK,
             #Server shutdown in progress
             errorcode.ER_SERVER_SHUTDOWN,
+            #Lock wait timeout exceeded (maybe extend timeout?)
+            errorcode.ER_LOCK_WAIT_TIMEOUT,
         )
-        self.sleep_interval = 1
-        self.cnx_retries = 10
-        self.session_tz = session_tz
-        self.query_log = DBConnectorLog(query_log, self.db_config)
-
-    def __enter__(self):
+        debug(f"config: {self._redacted_connector_args()}")
+        self.sleep_interval = sleep_interval
+        self.cnx_retries = cnx_retries
+        self.query_log = DBConnectorLog(query_log, self.connector_args)
+
+    def __enter__(self):
+        """Enter the context manager. Test the connection and log a debug message."""
+        self._test_query()
         return self
 
-    def __exit__(self, *args):
-        self.close_connections()
+    def __exit__(self, *args):
+        self._close_connections()
+
+    def _test_query(self):
+        """
+        Create a new connection and submit a test query to see if the connection has been
+        successful. Used to ensure any failure to connection errors occur at the point of creating
+        the DBConnector instance rather than waiting until the first query is made.
+        """
+        cnx_retries = self.cnx_retries
+        self.cnx_retries = 3
+        connection_timeout = self.connector_args["connection_timeout"]
+        self.pool.conn_args["connection_timeout"] = 5
+        debug("submitting test query")
+        try:
+            self.query("SELECT 1;")
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
+        except:
+            debug("test query failed")
+            raise
+        debug("test query successful")
+        self.cnx_retries = cnx_retries
+        self.pool.conn_args["connection_timeout"] = connection_timeout
+        return
+
+    def _redacted_connector_args(self):
+        return {k: v if k!="password" else "REDACTED" for k, v in self.connector_args.items()}
 
     def _connect(self):
         """
@@ -295,44 +326,48 @@ 
Source code for dbconnector.dbconnector
         """
         cnx = None
         try:
-            cnx = self.pool.get_connection()
-            if self.session_tz is not None:
-                cnx.time_zone = self.session_tz
+            cnx = self.pool._get_connection()
         except mysql.connector.Error as err:
             if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
-                raise DBConnectorException(self.logfile, "Something is wrong with the mysql "
-                                           "username or password.")
+                raise DBConnectorException("Something is wrong with the mysql username or "
+                                           "password.")
             elif err.errno == errorcode.ER_BAD_DB_ERROR:
-                raise DBConnectorException(self.logfile, "The database does not exist.")
-            elif err.errno in self.excusable_errors:
-                print("MySQL Error... %s" % str(err))
-                self.pool.return_connection(cnx)
+                raise DBConnectorException("The database does not exist.")
+            elif err.errno in self.retry_errors:
+                warning(f"MySQL Connector Error: {err}")
+                self.pool._return_connection(cnx)
+                return None
             else:
                 raise
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
         except:
             raise
         return cnx
 
-    def _safe_connect(self):
-        """Get a connection to the database with added resilience."""
+    def _connect_retry(self, cnx_retries=1):
+        """Get a connection to the database with optional retries."""
         retries = 0
         test = False
-        while not test and retries <= self.cnx_retries:
+        sleep_interval = self.sleep_interval
+        while not test:
             cnx = self._connect()
             retries += 1
-            try:
-                test = cnx.is_connected()
-            except:
-                print("_connect() FAILED!! Retrying in %d seconds" % self.sleep_interval)
-                self.pool.return_connection(cnx)
+            if cnx is None:
                 test = False
-                TIME.sleep(self.sleep_interval)
-                self.sleep_interval *= 2
-        if retries > self.cnx_retries:
-            err = sys.exc_info()[0]
-            raise DBConnectorException(self.logfile, "Failed to connect to the DB after %d "
-                                       "retries. Latest error: %s" % (self.cnx_retries, str(err)))
-        self.sleep_interval = 1
+            else:
+                test = cnx.is_connected()
+            if not test:
+                if retries < cnx_retries:
+                    warning(f"Connection failed - retrying in {self.sleep_interval} seconds")
+                    self.pool._return_connection(cnx)
+                    test = False
+                    TIME.sleep(sleep_interval)
+                    sleep_interval *= 2
+                else:
+                    #import pdb; pdb.set_trace()
+                    raise DBConnectorException(f"Failed to connect to the DB after {cnx_retries} "
+                                               f"retries.")
         return cnx
 
     def _safe_query(self, query_type, **kwargs):
@@ -344,6 +379,7 @@ 
Source code for dbconnector.dbconnector
         `query_type` : DBConnector class method
             One of *DBConnector._select_query*, *DBConnector._proc_query*,
             *DBConnector._iud_query*.
+
         Returns
         -------
         list of lists
@@ -352,81 +388,47 @@ 
Source code for dbconnector.dbconnector
         Notes
         -----
         Any additional arguments required by the query methods must be supplied as *kwargs*.
-        This method retries failed queries due to *excusable errors* an indefinitely with
-        exponential back-off. Queries that fail due to failure to retrieve a connection also retry
+        This method retries failed queries due to *retry_errors* with exponential back-off.
+        Queries that fail due to failure to retrieve a connection also retry
         with exponential back-off, but only up to *self.cnx_retries* times.
         """
         success = False
+        sleep_interval = self.sleep_interval
         while not success:
-            cnx = self._safe_connect()
+            cnx = self._connect_retry(cnx_retries=self.cnx_retries)
             start = datetime.utcnow()
             try:
                 result = query_type(cnx, **kwargs)
                 success = True
                 if self.query_log is not None:
                     time_taken = (datetime.utcnow() - start).total_seconds()
-                    sql = kwargs.get('sqlquery', None)
+                    sql = kwargs.get("sqlquery", None)
                     self.query_log.log_query(sql, start, time_taken)
             except mysql.connector.Error as err:
-                if err.errno in self.excusable_errors:
+                if err.errno in self.retry_errors:
                     if self.query_log is not None:
                         time_taken = (datetime.utcnow() - start).total_seconds()
-                        sql = kwargs.get('sqlquery', None)
+                        sql = kwargs.get("sqlquery", None)
                         self.query_log.log_query(sql, start, time_taken, 1, err)
-                    self.pool.return_connection(cnx)
-                    print("MySQL Error... %s" % str(err))
-                    TIME.sleep(self.sleep_interval)
-                    self.sleep_interval *= 2
+                    self.pool._return_connection(cnx)
+                    warning(f"MySQL Error: {err}")
+                    TIME.sleep(sleep_interval)
+                    sleep_interval *= 2
                 else:
-                    self.pool.return_connection(cnx)
+                    self.pool._return_connection(cnx)
                     raise
+            except KeyboardInterrupt:
+                raise KeyboardInterrupt
             except:
-                self.pool.return_connection(cnx)
+                self.pool._return_connection(cnx)
                 err = sys.exc_info()[0]
-                raise DBConnectorException(self.logfile, "Encountered an error during mysql query "
-                                                         "(%s)." % str(err))
-        self.pool.return_connection(cnx)
-        self.sleep_interval = 1
+                raise DBConnectorException(f"Encountered an error during MySQL query ({err}).")
+        self.pool._return_connection(cnx)
         return result
 
-
[docs]    def query(self, sqlquery, df=False):
-        """
-        Query the database using select (with resilience).
-
-        Parameters
-        ----------
-        `sqlquery` : string
-            SQL `select` statement to be executed.
-        `df` : boolean
-            Set to True to return query results as Pandas DataFrame. Column names will be extracted
-            from the *sqlquery* and converted to lowercase (do not use "select * from").
-        Returns
-        -------
-        list
-            List of tuples, [(R1C1, R1C2, ...), (R2C1, R2C2, ...), ...].
-            Length of list corresponds to N rows returned, length of tuples corresponds to columns
-            selected.
-        See Also
-        --------
-        MySQL Connector Python Docs: https://dev.mysql.com/doc/connector-python/en/index.html.
-        Notes
-        -----
-        MySQL Connector Python is prone to dropped connections - this wrapper adds resilience by
-        retrying.
-        """
-        return self._safe_query(self._select_query, sqlquery=sqlquery, df=df)

-
-
[docs]    def proc(self, proc, args):
-        """Execute a MySQL procedure with resilience."""
-        return self._safe_query(self._proc_query, proc=proc, args=args)

-
-
[docs]    def iud_query(self, sqlquery, data=None, size=1000):
-        """Execute an insert/update/delete SQL statement with resilience."""
-        return self._safe_query(self._iud_query, sqlquery=sqlquery, data=data, size=size)

-
-
[docs]    def close_connections(self):
+    def _close_connections(self):
         """Close all connections when done for optimal DB efficiency."""
-        self.pool.close_all()

+        self.pool.close_all()
 
     @staticmethod
     def _safe_close(cnx):
@@ -438,6 +440,8 @@ 
Source code for dbconnector.dbconnector
                     cnx.close()
         except (AttributeError, mysql.connector.errors.OperationalError):
             pass
+        except KeyboardInterrupt:
+            raise KeyboardInterrupt
         except:
             raise
         return
@@ -445,32 +449,30 @@ 
Source code for dbconnector.dbconnector
     @staticmethod
     def _select_query(cnx, **kwargs):
         """Execute a select query."""
-        sqlquery = kwargs.get('sqlquery', None)
-        df = kwargs.get('df', False)
+        sqlquery = kwargs.get("sqlquery", None)
+        debug(f"select query: {sqlquery}")
+        df = kwargs.get("df", False)
         cursor = cnx.cursor()
         cursor.execute(sqlquery)
         result = cursor.fetchall()
         cursor.close()
         if df:
-            from pandas import DataFrame
-            import re
+            debug("converting query result to dataframe")
             col_regex = "(?<=^select)[a-zA-Z0-9_\s*(),`]+(?=from)"
             cols = [c.strip().split(" as ")[-1].strip().strip("`") for c in
                     re.findall(col_regex, sqlquery.lower())[0].strip().split(",")]
-            if result[0]:
-                return DataFrame(result, columns=cols)
-            else:
-                return DataFrame({c: [] for c in cols})
+            return DataFrame(result, columns=cols)
         return result
 
     @staticmethod
     def _proc_query(cnx, **kwargs):
         """Execute a MySQL procedure."""
-        proc = kwargs.get('proc', None)
-        args = kwargs.get('args', None)
+        proc = kwargs.get("proc", None)
+        proc_args = kwargs.get("proc_args", None)
+        debug(f"procedure call: call {proc}({', '.join(map(str, proc_args))})")
         cursor = cnx.cursor()
         result = []
-        cursor.callproc(proc, args)
+        cursor.callproc(proc, proc_args)
         for res in cursor.stored_results():
             result.append(res.fetchall())
         cursor.close()
@@ -479,54 +481,113 @@ 
Source code for dbconnector.dbconnector
     @staticmethod
     def _iud_query(cnx, **kwargs):
         """Execute an insert/update/delete SQL statement."""
-        size = kwargs.get('size', 1000)
-        data = kwargs.get('data', None)
-        sqlquery = kwargs.get('sqlquery', None)
+        chunk_size = kwargs.get("chunk_size", 1000)
+        data = kwargs.get("data", None)
+        sqlquery = kwargs.get("sqlquery", None)
+        debug(f"insert/update/delete query: {sqlquery}")
         cursor = cnx.cursor()
         if data is None:
             cursor.execute(sqlquery)
         else:
-            for i in range(0, len(data), size):
-                cursor.executemany(sqlquery, data[i:(i+size)])
+            for i in range(0, len(data), chunk_size):
+                cursor.executemany(sqlquery, data[i:(i+chunk_size)])
         cnx.commit()
+        affected = cursor.rowcount
         cursor.close()
-        return True

+        return affected
+
+
[docs]    def query(self, sqlquery: str, df: bool = False):
+        """
+        Query the database using a select statement.
+
+        Parameters
+        ----------
+        sqlquery : string
+            SQL statement to be executed.
+        df : boolean, optional
+            Set to True to return query results as Pandas DataFrame. Column names will be extracted
+            from the *sqlquery* and converted to lowercase (do not use "select * from").
+
+        Returns
+        -------
+        list *OR* Pandas DataFrame
+            If `df=False`, returns a list of tuples, [(R1C1, R1C2, ...), (R2C1, R2C2, ...), ...].
+            Length of list corresponds to N rows returned, length of tuples corresponds to columns
+            selected.
+
+            If `df=True`, returns a Pandas DataFrame containing the columns from the `sqlquery` and
+            any rows returned.
+        """
+        return self._safe_query(self._select_query, sqlquery=sqlquery, df=df)

+
+
[docs]    def proc(self, proc: str, proc_args: list):
+        """
+        Execute a MySQL procedure.
+        
+        Parameters
+        ----------
+        proc : string
+            The name of the MySQL procedure.
+        proc_args : list
+            A list of arguments to pass to the procedure.
+
+        Returns
+        -------
+        list
+            A list of stored results, see `here <https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlcursor-stored-results.html>`_.
+        """
+        return self._safe_query(self._proc_query, proc=proc, proc_args=proc_args)

+
+
[docs]    def iud_query(self, sqlquery: str, data: Optional[list[list]] = None, chunk_size: int = 1000):
+        """
+        Execute an insert/update/delete SQL statement.
+        
+        Parameters
+        ----------
+        sqlquery : string
+            SQL statement to be executed. Optionally use '%s' placeholders for values in conjunction
+            with the `data` arg.
+        data : list of lists, optional
+            A list of lists containing any values that should be used to populate '%s' placeholders
+            in the VALUES section of `sqlquery`.
+        chunk_size : int, optional
+            Optionally break the insert up into chunks of this size when using `data` to pass
+            values. This can be useful if inserts to the DB are slow as shorter lived SQL queries
+            are generally preferred.
+
+        Returns
+        -------
+        int
+            The number of rows affected.
+        """
+        return self._safe_query(self._iud_query, sqlquery=sqlquery, data=data, chunk_size=chunk_size)

 

 
+           

           

+          
         

       

-      
-      

-    

-    
-    
-  
+
+
+ + + \ No newline at end of file diff --git a/docs/build/html/_modules/index.html b/docs/build/html/_modules/index.html index 67261a5..3da8a1e 100644 --- a/docs/build/html/_modules/index.html +++ b/docs/build/html/_modules/index.html @@ -1,76 +1,100 @@ - - - - - - - - Overview: module code — MySQL-DBConnector 1.1.2 documentation - - - - - - - - - + + + + + + Overview: module code — MySQL-DBConnector 1.3.1 documentation + + + + + + + + + - - + -
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All modules for which code is available

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  • dbconnector.dbconnector
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