mirror of
https://we.phorge.it/source/phorge.git
synced 2024-11-18 12:52:42 +01:00
dd796a44b6
Summary: It seems that there was a [[17cbfacae6 | recent-ish commit]] to the `JsShrink` external library. I'm not sure what this commit actually achieves, but we may as well bring it upstream.
Test Plan: Eyeball it.
Reviewers: vrana, epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9414
49 lines
1.5 KiB
PHP
49 lines
1.5 KiB
PHP
<?php
|
|
/** Remove spaces and comments from JavaScript code
|
|
* @param string code with commands terminated by semicolon
|
|
* @return string shrinked code
|
|
* @link http://vrana.github.com/JsShrink/
|
|
* @author Jakub Vrana, http://www.vrana.cz/
|
|
* @copyright 2007 Jakub Vrana
|
|
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
|
|
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 (one or other)
|
|
*/
|
|
function jsShrink($input) {
|
|
return preg_replace_callback('(
|
|
(?:
|
|
(^|[-+\([{}=,:;!%^&*|?~]|/(?![/*])|return|throw) # context before regexp
|
|
(?:\s|//[^\n]*+\n|/\*(?:[^*]|\*(?!/))*+\*/)* # optional space
|
|
(/(?![/*])(?:
|
|
\\\\[^\n]
|
|
|[^[\n/\\\\]++
|
|
|\[(?:\\\\[^\n]|[^]])++
|
|
)+/) # regexp
|
|
|(^
|
|
|\'(?:\\\\.|[^\n\'\\\\])*\'
|
|
|"(?:\\\\.|[^\n"\\\\])*"
|
|
|([0-9A-Za-z_$]+)
|
|
|([-+]+)
|
|
|.
|
|
)
|
|
)(?:\s|//[^\n]*+\n|/\*(?:[^*]|\*(?!/))*+\*/)* # optional space
|
|
)sx', 'jsShrinkCallback', "$input\n");
|
|
}
|
|
|
|
function jsShrinkCallback($match) {
|
|
static $last = '';
|
|
$match += array_fill(1, 5, null); // avoid E_NOTICE
|
|
list(, $context, $regexp, $result, $word, $operator) = $match;
|
|
if ($word != '') {
|
|
$result = ($last == 'word' ? "\n" : ($last == 'return' ? " " : "")) . $result;
|
|
$last = ($word == 'return' || $word == 'throw' || $word == 'break' ? 'return' : 'word');
|
|
} elseif ($operator) {
|
|
$result = ($last == $operator[0] ? "\n" : "") . $result;
|
|
$last = $operator[0];
|
|
} else {
|
|
if ($regexp) {
|
|
$result = $context . ($context == '/' ? "\n" : "") . $regexp;
|
|
}
|
|
$last = '';
|
|
}
|
|
return $result;
|
|
}
|