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Bruce's Parsing Expression Grammar tool.
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README.md

BPEG

BPEG is a parsing expression grammar tool for the command line. It's written in pure C with no dependencies.

Usage

bpeg [flags] <pattern> [<input files>...]

Flags

  • -h --help print the usage and quit
  • -v --verbose print verbose debugging info
  • -i --ignore-case perform a case-insensitive match
  • -d --define <name>:<def> define a grammar rule
  • -D --define-string <name>:<def> define a grammar rule (string-pattern)
  • -p --pattern <pat> provide a pattern (equivalent to bpeg '
  • -P --pattern-string <pat> provide a string pattern (equivalent to bpeg '', but may be useful if '' begins with a '-')
  • -r --replace <replacement> replace the input pattern with the given replacement
  • -m --mode <mode> set the behavior mode (defult: find-all)
  • -g --grammar <grammar file> use the specified file as a grammar

See man ./bpeg.1 for more details.

BPEG Patterns

BPEG patterns are a mixture of Parsing Expression Grammar and Regular Expression syntax, with a preference for prefix operators instead of suffix operators.

See man ./bpeg.1 for more details.

License

BPEG is provided under the MIT license with the Commons Clause (see LICENSE for details).