mirror of https://github.com/danog/PHP-Parser.git synced 2025-01-22 13:51:12 +01:00

History

Nikita Popov 537b59d4d1 PHP 7.1: Support multi-catch

Catch::$type is now an array Catch::$types.

2016-07-22 15:40:00 +02:00

analyze.php

Move parser to Parser\Php5

2015-05-02 22:50:11 +02:00

parser.template

Move token constants into separate class

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

php5.y

PHP 7.1: Support multi-catch

2016-07-22 15:40:00 +02:00

php7.y

PHP 7.1: Support multi-catch

2016-07-22 15:40:00 +02:00

README.md

Various docs fixes

2015-07-14 21:11:54 +02:00

rebuildParsers.php

Add string kinds and doc string labels

2016-04-07 12:09:00 +09:00

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
analyze.php: Analyzes the grammer and outputs some info about it
rebuildParser.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 rebuildParser.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 rebuildParser.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.