Mercurial > hg > isophonics-drupal-site
comparison vendor/nikic/php-parser/doc/0_Introduction.markdown @ 17:129ea1e6d783
Update, including to Drupal core 8.6.10
author | Chris Cannam |
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date | Thu, 28 Feb 2019 13:21:36 +0000 |
parents | 5fb285c0d0e3 |
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1 Introduction | 1 Introduction |
2 ============ | 2 ============ |
3 | 3 |
4 This project is a PHP 5.2 to PHP 7.2 parser **written in PHP itself**. | 4 This project is a PHP 5.2 to PHP 7.3 parser **written in PHP itself**. |
5 | 5 |
6 What is this for? | 6 What is this for? |
7 ----------------- | 7 ----------------- |
8 | 8 |
9 A parser is useful for [static analysis][0], manipulation of code and basically any other | 9 A parser is useful for [static analysis][0], manipulation of code and basically any other |
24 programmatic PHP code analysis are incidentally PHP developers, not C developers. | 24 programmatic PHP code analysis are incidentally PHP developers, not C developers. |
25 | 25 |
26 What can it parse? | 26 What can it parse? |
27 ------------------ | 27 ------------------ |
28 | 28 |
29 The parser supports parsing PHP 5.2-7.2. | 29 The parser supports parsing PHP 5.2-7.3. |
30 | 30 |
31 As the parser is based on the tokens returned by `token_get_all` (which is only able to lex the PHP | 31 As the parser is based on the tokens returned by `token_get_all` (which is only able to lex the PHP |
32 version it runs on), additionally a wrapper for emulating tokens from newer versions is provided. | 32 version it runs on), additionally a wrapper for emulating tokens from newer versions is provided. |
33 This allows to parse PHP 7.2 source code running on PHP 5.5, for example. This emulation is somewhat | 33 This allows to parse PHP 7.3 source code running on PHP 7.0, for example. This emulation is somewhat |
34 hacky and not perfect, but it should work well on any sane code. | 34 hacky and not perfect, but it should work well on any sane code. |
35 | 35 |
36 What output does it produce? | 36 What output does it produce? |
37 ---------------------------- | 37 ---------------------------- |
38 | 38 |