3.3.0

What's Changed

• Updated Antlr4 grammar to use latest one (https://github.com/antlr/grammars-v4/tree/master/lua)
• Add support for Lua 5.4 attributes, new Node Attribute
• Build AST using antlr visitor instead of re-reading all tokens, should improve performance

Fixes

• Some comments were discarded #39
• Wrong operator precedence #38, #41, #33
• luaparser no longer works with python 3.13 #58
• Failure to parse chained comparisons #56
• Some parser failures #49, #50

3.2.1

What's Changed

• Statement node is now a descendant of Expression node

Fixes

• Missing brackets on table #26
• Nested unary expressions #27
• Comments in the end of Node will be skipped #28
• Fail to reject unassigned global variable declaration #29
• Fail to reject an invalid escape sequence #30

3.1.1

What's Changed

• Fix lua ouput indenter by @penguinol in #25
• Feature/support pickling nodes by @ypaliy-vdoo in #20

Full Changelog: 3.1.0...3.1.1

3.1.0

New feature

• each node now contains line infomation and start/stop token

class Node:
    """Base class for AST node."""
    comments: Comments
    first_token: Optional[Token]
    last_token: Optional[Token]
    start_char: Optional[int]
    stop_char: Optional[int]
    line: Optional[int]

3.0.1

Bug fixes

• fix #11: no visitor found for class StringDelimiter
• fix xml printer

3.0.0

Breaking changes

Index node

Index.idx use now a Name node instead of a String node:
Before: Index(idx=String('a'), value=Name('x'))
Now: Index(idx=Name('a'), value=Name('x'))

New features

• Index node: add notation property:

index_node.notation

class IndexNotation(Enum):
    DOT = 0  # obj.foo
    SQUARE = 1  # obj[foo]

• String node: add delimiter information

string_node.delimiter

class StringDelimiter(Enum):
    SINGLE_QUOTE = 0  # 'foo'
    DOUBLE_QUOTE = 1  # "foo"
    DOUBLE_SQUARE = 2  # [[foo]]

• add a lua source printer

Fixes

• cant walk the ast tree in some cases.
• Merge pull request #7 from NanakiPL/master
• named an unnamed exception
• tests: add lua printer tests.