mirror of https://github.com/phabelio/PHP-Parser.git synced 2025-01-22 13:21:12 +01:00

History

Nikita Popov a947e731c3 Add useConsistentVariableNodes mode

The parameter case is a bit weird, because the subnode is called
"name" here, rather than "var". Nothing we can do about that in
this version though.

The two parser options might be merged. I've kept it separate,
because I think this variable representation should become the
default (or even only representation) in the future, while I'm
less sure about the Identifier thing.

2016-12-23 00:10:59 +01:00

parser.template

Move token constants into separate class

2015-06-13 18:39:55 +02:00

php5.y

Add useConsistentVariableNodes mode

2016-12-23 00:10:59 +01:00

php7.y

Add useConsistentVariableNodes mode

2016-12-23 00:10:59 +01:00

README.md

Fix typo in grammar/README.md

2016-08-11 16:17:08 +02:00

rebuildParsers.php

Add useConsistentVariableNodes mode

2016-12-23 00:10:59 +01:00

tokens.template

Move token constants into separate class

2015-06-13 18:39:55 +02:00

tokens.y

Implement generalized yield operator

2015-06-13 18:11:40 +02:00

README.md

What do all those files mean?

php5.y: PHP 5 grammar written in a pseudo language
php7.y: PHP 7 grammar written in a pseudo language
tokens.y: Tokens definition shared between PHP 5 and PHP 7 grammars
parser.template: A kmyacc parser prototype file for PHP
tokens.template: A kmyacc prototype file for the Tokens class
rebuildParsers.php: Preprocesses the grammar and builds the parser using kmyacc

.phpy pseudo language

The .y file is a normal grammer in kmyacc (yacc) style, with some transformations applied to it:

Nodes are created using the syntax Name[..., ...]. This is transformed into new Name(..., ..., attributes())
Some function-like constructs are resolved (see rebuildParsers.php for a list)

Building the parser

In order to rebuild the parser, you need moriyoshi's fork of kmyacc. After you compiled/installed it, run the rebuildParsers.php script.

By default only the Parser.php is built. If you want to additionally emit debug symbols and create y.output, run the script with --debug. If you want to retain the preprocessed grammar pass --keep-tmp-grammar.