trfoldlit 0.20.24

This package has no dependencies.

# trfoldlit
## Summary
Perform fold transform on grammar with literals
## Description
Reads a parse tree from stdin, replaces a string literals on
the RHS of a rule with the lexer rule LHS symbol, and writes
the modified parsing result set to stdout. The input and
output are Parse Tree Data.
## Usage
trfoldlit
## Examples
Before:
grammar Expression;
e : e ('*' | '/') e
| e ('+' | '-') e
| '(' e ')'
| ('-' | '+')* a
;
a : INT ;
INT : ('0' .. '9')+ ;
MUL : '*' ;
DIV : '/' ;
ADD : '+' ;
SUB : '-' ;
LP : '(' ;
RP : ')' ;
WS : [ \r\n\t] + -> skip ;
Command:
trparse Expression.g4 | trfoldlit | trsponge -c
After:
grammar Expression;
e : e (MUL | DIV) e
| e (ADD | SUB) e
| LP e RP
| (SUB | ADD)* a
;
a : INT ;
INT : ('0' .. '9')+ ;
MUL : '*' ;
DIV : '/' ;
ADD : '+' ;
SUB : '-' ;
LP : '(' ;
RP : ')' ;
WS : [ \r\n\t] + -> skip ;
## Notes
If you are running MSYS2 on Windows, you may notice that XPaths are not being
processed by this command correctly. To avoid the Bash shell from altering
XPaths, type _export MSYS2_ARG_CONV_EXCL="*"_, then execute your command.
## Current version
0.20.24 Updates to XPath engine. NB: not all Trash tools supported yet.