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trperf

Summary

Perform performance analysis of an Antlr grammar parse

Description

Parse files and output to stdout parse tree data using performance analysis turned on. The tool requires a pre-built parser via trgen for a grammar for anything other than the standard parser grammars that are supported. To specify the grammar, you can either be in a trgen-generated parser directory, or use the -p option.

Usage

trperf (<string> | <options>)*
-c. -column      String of characters denoting columnns.
                 F = File name
                 d = Decision number
                 r = Rule name
                 i = Invocations
                 T = Time
                 k = Total k
                 m = Max k
                 f = Fallbacks
                 a = Ambiguities
                 e = Errors
                 t = Transitions
                 c = Input string at max-k
       Default is "FdriTkmfaetc".
-i, --input      String to parse.
-s, --start-rule Start rule name.
-p, --parser     Location of pre-built parser (aka the trgen Generated/ directory)

Examples

# print out performance data for a parse, ignore the header line, sort on "Max k", and output in a formatted table.
trperf aggregate01.sql | tail -n +2 | sort -k6 -n -r | column -t

Current version

0.23.2 Code clean up. Rename Domemtech.Trash to just Trash. Add match-required to trquery.

License

The MIT License

Copyright (c) 2024 Ken Domino

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.