trsplit 0.23.2

This package has no dependencies.

# trsplit
## Summary
Split a combined Antlr4 grammar
## Description
The split command splits one grammar into two. The input grammar
must be a combined lexer/parser grammar implemented in one file.
The transformation creates a lexer grammar and a parser grammar,
outputed as parse tree data with the two grammars.
[trsponge](https://github.com/kaby76/Trash/tree/main/trsponge)
is used to instantiate the two files in the file system.
## Usage
trsplit
## Details
The `trsplit` application splits a combined grammar into two files.
It does this as follows:
* Partition the rules in the grammar into parser and lexer rules. This
is done by examining the LHS symbol: parser rules start with a lowercase
LHS symbol name; lexer rules start with an uppercase LHS symbol name.
* In the parser grammar, insert an `optionsSpec` declaration that
contains a `tokenVocab` specification for the name of the vocabulary
generated for the lexer grammar.
* Add `grammarDecl` statements to the top of the new files to declare
the parser and lexer grammars.
After splitting, use `trsponge` to output the files. The resulting files
may require hand-tweaking due to various constraints that split grammars
must follow, including:
* String literals that do not have a corresponding lexer rule must be
modified.
* Parser options do not apply to lexer grammars. Remove or replace.
## Example
trparse Arithmetic.g4 | trsplit | trsponge
## 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,
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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,
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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