danog/PHP-Parser
1
0
Fork 0
mirror of https://github.com/danog/PHP-Parser.git synced 2024-11-30 04:19:30 +01:00
Code Issues Projects Releases Wiki Activity
3ad0d4b310
PHP-Parser/grammar
History
Nikita Popov 3ad0d4b310 Add support for return type declarations [PHP 7] 
This adds an additional "returnType" subnode to Stmt\Function_,
Stmt\ClassMethod and Expr\Closure, as well as the corresponding
support in the name resolver and pretty printer.
2015-03-12 22:16:12 +01:00
..
analyze.php Remove node analysis from analyze.php and fix some other things about it 2011-08-14 15:52:57 +02:00
kmyacc.php.parser Make names in the parser more descriptive 2014-04-20 23:05:51 +02:00
README.md Port library to use namespaces, with BC for old names 2014-02-06 20:29:35 +01:00
rebuildParser.php Separate parser code from generated data 2014-04-20 00:19:35 +02:00
zend_language_parser.phpy Add support for return type declarations [PHP 7] 2015-03-12 22:16:12 +01:00

README.md

What do all those files mean?

  • zend_language_parser.phpy: PHP grammer written in a pseudo language
  • analyze.php: Analyzes the .phpy-grammer and outputs some info about it
  • rebuildParser.php: Preprocesses the .phpy-grammar and builds the parser using kmyacc
  • kmyacc.php.parser: A kmyacc parser prototype file for PHP

.phpy pseudo language

The .phpy 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 Node\Name(..., ..., $attributes)
  • Name::abc is transformed to Node\Name::abc
  • Some function-like constructs are resolved (see rebuildParser.php for a list)
  • Associative arrays are written as [key: value, ...], which is transformed to array('key' => value, ...)

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 build Parser/Debug.php and y.output run the script with --debug. If you want to retain the preprocessed grammar pass --keep-tmp-grammar.