GitHub - indeyets/lemon-php: A PHP parser generator, based on the lemon parser generator tool. lemon-php requires a C compiler to build, and this will generate pure-PHP parsers.

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A PHP parser generator, based on the lemon parser generator tool. lemon-php requires a C compiler to build, and this will generate pure-PHP parsers.

wezfurlong.org/blog/2006/nov/parser-and-lexer-generators-for-php

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Name		Name	Last commit message	Last commit date
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COPYING		COPYING
README		README
c.y		c.y
lemon.c		lemon.c
lempar.c		lempar.c
lempar.php		lempar.php
objc.y		objc.y

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(for licensing and copyright information, see COPYING)

This is an adaptation of lemon that optionally emits PHP code to implement a
parser for the grammar described in a .y file.

Usage:

 cc -o lemon lemon.c
 lemon -LPHP my.y

This will output my.php, which contains a PHP class that implements your parser.
Usage is along the lines of:

$P = new ParseParser();
$S = new Yylex(); // you can get one of these using the JLexPHP package

while ($t = $S->yylex()) {
	$P->Parse($t->type, $t);
}
$P->Parse(0);


You can find out more about the lemon syntax from:
http://www.hwaci.com/sw/lemon/lemon.html


Enjoy!

--Wez.