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Vendor edin Package lexicon-syntax Short Description BNF-style grammar parser, validator, and code generator for Lexicon-powered syntax tools. License
MIT
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Lexicon Syntax is a companion grammar parser and validator for the
edin/lexicon package. It parses compact token and rule declarations
into an AST, validates common grammar mistakes, and can pretty-print the
grammar back into a normalized BNF-like format.
See docs/README.md for the language, CLI, generation,
validation, and roadmap notes.
CLI
Install the command globally with Composer:
Make sure Composer's global vendor/bin directory is on PATH. On
Windows this is commonly:
Create a C-like demo project in an empty directory:
Those commands read lexicon-syntax.json from the current project folder.
Useful inspection commands:
lsyn print pretty-prints the grammar, lsyn ast prints the grammar AST
nodes, and lsyn parse generates the demo parser and prints the parsed C-like
sample AST.
During development from source, run the binary directly:
Requiresphp Version
^8.2 edin/lexicon Version
^0.4
Composer command for our command line client (download client)This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free.Standard composer command
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