129 lines
5 KiB
PHP
129 lines
5 KiB
PHP
|
<?php
|
||
|
|
/*
|
||
|
|
+--------------------------------------------------------------------+
|
||
|
|
| CiviCRM version 4.7 |
|
||
|
|
+--------------------------------------------------------------------+
|
||
|
|
| Copyright CiviCRM LLC (c) 2004-2017 |
|
||
|
|
+--------------------------------------------------------------------+
|
||
|
|
| This file is a part of CiviCRM. |
|
||
|
|
| |
|
||
|
|
| CiviCRM is free software; you can copy, modify, and distribute it |
|
||
|
|
| under the terms of the GNU Affero General Public License |
|
||
|
|
| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
|
||
|
|
| |
|
||
|
|
| CiviCRM is distributed in the hope that it will be useful, but |
|
||
|
|
| WITHOUT ANY WARRANTY; without even the implied warranty of |
|
||
|
|
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
|
||
|
|
| See the GNU Affero General Public License for more details. |
|
||
|
|
| |
|
||
|
|
| You should have received a copy of the GNU Affero General Public |
|
||
|
|
| License and the CiviCRM Licensing Exception along |
|
||
|
|
| with this program; if not, contact CiviCRM LLC |
|
||
|
|
| at info[AT]civicrm[DOT]org. If you have questions about the |
|
||
|
|
| GNU Affero General Public License or the licensing of CiviCRM, |
|
||
|
|
| see the CiviCRM license FAQ at http://civicrm.org/licensing |
|
||
|
|
+--------------------------------------------------------------------+
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse Javascript content and extract translatable strings.
|
||
|
|
*
|
||
|
|
* @package CRM
|
||
|
|
* @copyright CiviCRM LLC (c) 2004-2017
|
||
|
|
*/
|
||
|
|
class CRM_Utils_JS {
|
||
|
|
/**
|
||
|
|
* Parse a javascript file for translatable strings.
|
||
|
|
*
|
||
|
|
* @param string $jsCode
|
||
|
|
* Raw Javascript code.
|
||
|
|
* @return array
|
||
|
|
* Array of translatable strings
|
||
|
|
*/
|
||
|
|
public static function parseStrings($jsCode) {
|
||
|
|
$strings = array();
|
||
|
|
// Match all calls to ts() in an array.
|
||
|
|
// Note: \s also matches newlines with the 's' modifier.
|
||
|
|
preg_match_all('~
|
||
|
|
[^\w]ts\s* # match "ts" with whitespace
|
||
|
|
\(\s* # match "(" argument list start
|
||
|
|
((?:(?:\'(?:\\\\\'|[^\'])*\'|"(?:\\\\"|[^"])*")(?:\s*\+\s*)?)+)\s*
|
||
|
|
[,\)] # match ")" or "," to finish
|
||
|
|
~sx', $jsCode, $matches);
|
||
|
|
foreach ($matches[1] as $text) {
|
||
|
|
$quote = $text[0];
|
||
|
|
// Remove newlines
|
||
|
|
$text = str_replace("\\\n", '', $text);
|
||
|
|
// Unescape escaped quotes
|
||
|
|
$text = str_replace('\\' . $quote, $quote, $text);
|
||
|
|
// Remove end quotes
|
||
|
|
$text = substr(ltrim($text, $quote), 0, -1);
|
||
|
|
$strings[$text] = $text;
|
||
|
|
}
|
||
|
|
return array_values($strings);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Identify duplicate, adjacent, identical closures and consolidate them.
|
||
|
|
*
|
||
|
|
* Note that you can only dedupe closures if they are directly adjacent and
|
||
|
|
* have exactly the same parameters.
|
||
|
|
*
|
||
|
|
* @param array $scripts
|
||
|
|
* Javascript source.
|
||
|
|
* @param array $localVars
|
||
|
|
* Ordered list of JS vars to identify the start of a closure.
|
||
|
|
* @param array $inputVals
|
||
|
|
* Ordered list of input values passed into the closure.
|
||
|
|
* @return string
|
||
|
|
* Javascript source.
|
||
|
|
*/
|
||
|
|
public static function dedupeClosures($scripts, $localVars, $inputVals) {
|
||
|
|
// Example opening: (function (angular, $, _) {
|
||
|
|
$opening = '\s*\(\s*function\s*\(\s*';
|
||
|
|
$opening .= implode(',\s*', array_map(function ($v) {
|
||
|
|
return preg_quote($v, '/');
|
||
|
|
}, $localVars));
|
||
|
|
$opening .= '\)\s*\{';
|
||
|
|
$opening = '/^' . $opening . '/';
|
||
|
|
|
||
|
|
// Example closing: })(angular, CRM.$, CRM._);
|
||
|
|
$closing = '\}\s*\)\s*\(\s*';
|
||
|
|
$closing .= implode(',\s*', array_map(function ($v) {
|
||
|
|
return preg_quote($v, '/');
|
||
|
|
}, $inputVals));
|
||
|
|
$closing .= '\);\s*';
|
||
|
|
$closing = "/$closing\$/";
|
||
|
|
|
||
|
|
$scripts = array_values($scripts);
|
||
|
|
for ($i = count($scripts) - 1; $i > 0; $i--) {
|
||
|
|
if (preg_match($closing, $scripts[$i - 1]) && preg_match($opening, $scripts[$i])) {
|
||
|
|
$scripts[$i - 1] = preg_replace($closing, '', $scripts[$i - 1]);
|
||
|
|
$scripts[$i] = preg_replace($opening, '', $scripts[$i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $scripts;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This is a primitive comment stripper. It doesn't catch all comments
|
||
|
|
* and falls short of minification, but it doesn't munge Angular injections
|
||
|
|
* and is fast enough to run synchronously (without caching).
|
||
|
|
*
|
||
|
|
* At time of writing, running this against the Angular modules, this impl
|
||
|
|
* of stripComments currently adds 10-20ms and cuts ~7%.
|
||
|
|
*
|
||
|
|
* Please be extremely cautious about extending this. If you want better
|
||
|
|
* minification, you should probably remove this implementation,
|
||
|
|
* import a proper JSMin implementation, and cache its output.
|
||
|
|
*
|
||
|
|
* @param string $script
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public static function stripComments($script) {
|
||
|
|
return preg_replace(":^\\s*//[^\n]+$:m", "", $script);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|