Subversion Repositories SmartDukaan

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
16591 anikendra 1
<?php
2
/**
3
 * Language string extractor
4
 *
5
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
6
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
7
 *
8
 * Licensed under The MIT License
9
 * For full copyright and license information, please see the LICENSE.txt
10
 * Redistributions of files must retain the above copyright notice.
11
 *
12
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
13
 * @link          http://cakephp.org CakePHP(tm) Project
14
 * @since         CakePHP(tm) v 1.2.0.5012
15
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
16
 */
17
 
18
App::uses('AppShell', 'Console/Command');
19
App::uses('File', 'Utility');
20
App::uses('Folder', 'Utility');
21
App::uses('Hash', 'Utility');
22
 
23
/**
24
 * Language string extractor
25
 *
26
 * @package       Cake.Console.Command.Task
27
 */
28
class ExtractTask extends AppShell {
29
 
30
/**
31
 * Paths to use when looking for strings
32
 *
33
 * @var string
34
 */
35
	protected $_paths = array();
36
 
37
/**
38
 * Files from where to extract
39
 *
40
 * @var array
41
 */
42
	protected $_files = array();
43
 
44
/**
45
 * Merge all domain and category strings into the default.pot file
46
 *
47
 * @var bool
48
 */
49
	protected $_merge = false;
50
 
51
/**
52
 * Current file being processed
53
 *
54
 * @var string
55
 */
56
	protected $_file = null;
57
 
58
/**
59
 * Contains all content waiting to be write
60
 *
61
 * @var string
62
 */
63
	protected $_storage = array();
64
 
65
/**
66
 * Extracted tokens
67
 *
68
 * @var array
69
 */
70
	protected $_tokens = array();
71
 
72
/**
73
 * Extracted strings indexed by category, domain, msgid and context.
74
 *
75
 * @var array
76
 */
77
	protected $_translations = array();
78
 
79
/**
80
 * Destination path
81
 *
82
 * @var string
83
 */
84
	protected $_output = null;
85
 
86
/**
87
 * An array of directories to exclude.
88
 *
89
 * @var array
90
 */
91
	protected $_exclude = array();
92
 
93
/**
94
 * Holds whether this call should extract model validation messages
95
 *
96
 * @var bool
97
 */
98
	protected $_extractValidation = true;
99
 
100
/**
101
 * Holds the validation string domain to use for validation messages when extracting
102
 *
103
 * @var bool
104
 */
105
	protected $_validationDomain = 'default';
106
 
107
/**
108
 * Holds whether this call should extract the CakePHP Lib messages
109
 *
110
 * @var bool
111
 */
112
	protected $_extractCore = false;
113
 
114
/**
115
 * Method to interact with the User and get path selections.
116
 *
117
 * @return void
118
 */
119
	protected function _getPaths() {
120
		$defaultPath = APP;
121
		while (true) {
122
			$currentPaths = count($this->_paths) > 0 ? $this->_paths : array('None');
123
			$message = __d(
124
				'cake_console',
125
				"Current paths: %s\nWhat is the path you would like to extract?\n[Q]uit [D]one",
126
				implode(', ', $currentPaths)
127
			);
128
			$response = $this->in($message, null, $defaultPath);
129
			if (strtoupper($response) === 'Q') {
130
				$this->err(__d('cake_console', 'Extract Aborted'));
131
				return $this->_stop();
132
			} elseif (strtoupper($response) === 'D' && count($this->_paths)) {
133
				$this->out();
134
				return;
135
			} elseif (strtoupper($response) === 'D') {
136
				$this->err(__d('cake_console', '<warning>No directories selected.</warning> Please choose a directory.'));
137
			} elseif (is_dir($response)) {
138
				$this->_paths[] = $response;
139
				$defaultPath = 'D';
140
			} else {
141
				$this->err(__d('cake_console', 'The directory path you supplied was not found. Please try again.'));
142
			}
143
			$this->out();
144
		}
145
	}
146
 
147
/**
148
 * Execution method always used for tasks
149
 *
150
 * @return void
151
 */
152
	public function execute() {
153
		if (!empty($this->params['exclude'])) {
154
			$this->_exclude = explode(',', $this->params['exclude']);
155
		}
156
		if (isset($this->params['files']) && !is_array($this->params['files'])) {
157
			$this->_files = explode(',', $this->params['files']);
158
		}
159
		if (isset($this->params['paths'])) {
160
			$this->_paths = explode(',', $this->params['paths']);
161
		} elseif (isset($this->params['plugin'])) {
162
			$plugin = Inflector::camelize($this->params['plugin']);
163
			if (!CakePlugin::loaded($plugin)) {
164
				CakePlugin::load($plugin);
165
			}
166
			$this->_paths = array(CakePlugin::path($plugin));
167
			$this->params['plugin'] = $plugin;
168
		} else {
169
			$this->_getPaths();
170
		}
171
 
172
		if (isset($this->params['extract-core'])) {
173
			$this->_extractCore = !(strtolower($this->params['extract-core']) === 'no');
174
		} else {
175
			$response = $this->in(__d('cake_console', 'Would you like to extract the messages from the CakePHP core?'), array('y', 'n'), 'n');
176
			$this->_extractCore = strtolower($response) === 'y';
177
		}
178
 
179
		if (!empty($this->params['exclude-plugins']) && $this->_isExtractingApp()) {
180
			$this->_exclude = array_merge($this->_exclude, App::path('plugins'));
181
		}
182
 
183
		if (!empty($this->params['ignore-model-validation']) || (!$this->_isExtractingApp() && empty($plugin))) {
184
			$this->_extractValidation = false;
185
		}
186
		if (!empty($this->params['validation-domain'])) {
187
			$this->_validationDomain = $this->params['validation-domain'];
188
		}
189
 
190
		if ($this->_extractCore) {
191
			$this->_paths[] = CAKE;
192
			$this->_exclude = array_merge($this->_exclude, array(
193
				CAKE . 'Test',
194
				CAKE . 'Console' . DS . 'Templates'
195
			));
196
		}
197
 
198
		if (isset($this->params['output'])) {
199
			$this->_output = $this->params['output'];
200
		} elseif (isset($this->params['plugin'])) {
201
			$this->_output = $this->_paths[0] . DS . 'Locale';
202
		} else {
203
			$message = __d('cake_console', "What is the path you would like to output?\n[Q]uit", $this->_paths[0] . DS . 'Locale');
204
			while (true) {
205
				$response = $this->in($message, null, rtrim($this->_paths[0], DS) . DS . 'Locale');
206
				if (strtoupper($response) === 'Q') {
207
					$this->err(__d('cake_console', 'Extract Aborted'));
208
					return $this->_stop();
209
				} elseif ($this->_isPathUsable($response)) {
210
					$this->_output = $response . DS;
211
					break;
212
				} else {
213
					$this->err(__d('cake_console', 'The directory path you supplied was not found. Please try again.'));
214
				}
215
				$this->out();
216
			}
217
		}
218
 
219
		if (isset($this->params['merge'])) {
220
			$this->_merge = !(strtolower($this->params['merge']) === 'no');
221
		} else {
222
			$this->out();
223
			$response = $this->in(__d('cake_console', 'Would you like to merge all domain and category strings into the default.pot file?'), array('y', 'n'), 'n');
224
			$this->_merge = strtolower($response) === 'y';
225
		}
226
 
227
		if (empty($this->_files)) {
228
			$this->_searchFiles();
229
		}
230
 
231
		$this->_output = rtrim($this->_output, DS) . DS;
232
		if (!$this->_isPathUsable($this->_output)) {
233
			$this->err(__d('cake_console', 'The output directory %s was not found or writable.', $this->_output));
234
			return $this->_stop();
235
		}
236
 
237
		$this->_extract();
238
	}
239
 
240
/**
241
 * Add a translation to the internal translations property
242
 *
243
 * Takes care of duplicate translations
244
 *
245
 * @param string $category The category
246
 * @param string $domain The domain
247
 * @param string $msgid The message string
248
 * @param array $details The file and line references
249
 * @return void
250
 */
251
	protected function _addTranslation($category, $domain, $msgid, $details = array()) {
252
		$context = '';
253
		if (isset($details['msgctxt'])) {
254
			$context = $details['msgctxt'];
255
		}
256
 
257
		if (empty($this->_translations[$category][$domain][$msgid][$context])) {
258
			$this->_translations[$category][$domain][$msgid][$context] = array(
259
				'msgid_plural' => false,
260
			);
261
		}
262
 
263
		if (isset($details['msgid_plural'])) {
264
			$this->_translations[$category][$domain][$msgid][$context]['msgid_plural'] = $details['msgid_plural'];
265
		}
266
		if (isset($details['file'])) {
267
			$line = 0;
268
			if (isset($details['line'])) {
269
				$line = $details['line'];
270
			}
271
			$this->_translations[$category][$domain][$msgid][$context]['references'][$details['file']][] = $line;
272
		}
273
	}
274
 
275
/**
276
 * Extract text
277
 *
278
 * @return void
279
 */
280
	protected function _extract() {
281
		$this->out();
282
		$this->out();
283
		$this->out(__d('cake_console', 'Extracting...'));
284
		$this->hr();
285
		$this->out(__d('cake_console', 'Paths:'));
286
		foreach ($this->_paths as $path) {
287
			$this->out('   ' . $path);
288
		}
289
		$this->out(__d('cake_console', 'Output Directory: ') . $this->_output);
290
		$this->hr();
291
		$this->_extractTokens();
292
		$this->_extractValidationMessages();
293
		$this->_buildFiles();
294
		$this->_writeFiles();
295
		$this->_paths = $this->_files = $this->_storage = array();
296
		$this->_translations = $this->_tokens = array();
297
		$this->_extractValidation = true;
298
		$this->out();
299
		$this->out(__d('cake_console', 'Done.'));
300
	}
301
 
302
/**
303
 * Gets the option parser instance and configures it.
304
 *
305
 * @return ConsoleOptionParser
306
 */
307
	public function getOptionParser() {
308
		$parser = parent::getOptionParser();
309
 
310
		$parser->description(
311
			__d('cake_console', 'CakePHP Language String Extraction:')
312
		)->addOption('app', array(
313
			'help' => __d('cake_console', 'Directory where your application is located.')
314
		))->addOption('paths', array(
315
			'help' => __d('cake_console', 'Comma separated list of paths.')
316
		))->addOption('merge', array(
317
			'help' => __d('cake_console', 'Merge all domain and category strings into the default.po file.'),
318
			'choices' => array('yes', 'no')
319
		))->addOption('output', array(
320
			'help' => __d('cake_console', 'Full path to output directory.')
321
		))->addOption('files', array(
322
			'help' => __d('cake_console', 'Comma separated list of files.')
323
		))->addOption('exclude-plugins', array(
324
			'boolean' => true,
325
			'default' => true,
326
			'help' => __d('cake_console', 'Ignores all files in plugins if this command is run inside from the same app directory.')
327
		))->addOption('plugin', array(
328
			'help' => __d('cake_console', 'Extracts tokens only from the plugin specified and puts the result in the plugin\'s Locale directory.')
329
		))->addOption('ignore-model-validation', array(
330
			'boolean' => true,
331
			'default' => false,
332
			'help' => __d('cake_console', 'Ignores validation messages in the $validate property.' .
333
				' If this flag is not set and the command is run from the same app directory,' .
334
				' all messages in model validation rules will be extracted as tokens.'
335
			)
336
		))->addOption('validation-domain', array(
337
			'help' => __d('cake_console', 'If set to a value, the localization domain to be used for model validation messages.')
338
		))->addOption('exclude', array(
339
			'help' => __d('cake_console', 'Comma separated list of directories to exclude.' .
340
				' Any path containing a path segment with the provided values will be skipped. E.g. test,vendors'
341
			)
342
		))->addOption('overwrite', array(
343
			'boolean' => true,
344
			'default' => false,
345
			'help' => __d('cake_console', 'Always overwrite existing .pot files.')
346
		))->addOption('extract-core', array(
347
			'help' => __d('cake_console', 'Extract messages from the CakePHP core libs.'),
348
			'choices' => array('yes', 'no')
349
		));
350
 
351
		return $parser;
352
	}
353
 
354
/**
355
 * Extract tokens out of all files to be processed
356
 *
357
 * @return void
358
 */
359
	protected function _extractTokens() {
360
		foreach ($this->_files as $file) {
361
			$this->_file = $file;
362
			$this->out(__d('cake_console', 'Processing %s...', $file), 1, Shell::VERBOSE);
363
 
364
			$code = file_get_contents($file);
365
			$allTokens = token_get_all($code);
366
 
367
			$this->_tokens = array();
368
			foreach ($allTokens as $token) {
369
				if (!is_array($token) || ($token[0] !== T_WHITESPACE && $token[0] !== T_INLINE_HTML)) {
370
					$this->_tokens[] = $token;
371
				}
372
			}
373
			unset($allTokens);
374
			$this->_parse('__', array('singular'));
375
			$this->_parse('__n', array('singular', 'plural'));
376
			$this->_parse('__d', array('domain', 'singular'));
377
			$this->_parse('__c', array('singular', 'category'));
378
			$this->_parse('__dc', array('domain', 'singular', 'category'));
379
			$this->_parse('__dn', array('domain', 'singular', 'plural'));
380
			$this->_parse('__dcn', array('domain', 'singular', 'plural', 'count', 'category'));
381
 
382
			$this->_parse('__x', array('context', 'singular'));
383
			$this->_parse('__xn', array('context', 'singular', 'plural'));
384
			$this->_parse('__dx', array('domain', 'context', 'singular'));
385
			$this->_parse('__dxc', array('domain', 'context', 'singular', 'category'));
386
			$this->_parse('__dxn', array('domain', 'context', 'singular', 'plural'));
387
			$this->_parse('__dxcn', array('domain', 'context', 'singular', 'plural', 'count', 'category'));
388
			$this->_parse('__xc', array('context', 'singular', 'category'));
389
 
390
		}
391
	}
392
 
393
/**
394
 * Parse tokens
395
 *
396
 * @param string $functionName Function name that indicates translatable string (e.g: '__')
397
 * @param array $map Array containing what variables it will find (e.g: category, domain, singular, plural)
398
 * @return void
399
 */
400
	protected function _parse($functionName, $map) {
401
		$count = 0;
402
		$categories = array('LC_ALL', 'LC_COLLATE', 'LC_CTYPE', 'LC_MONETARY', 'LC_NUMERIC', 'LC_TIME', 'LC_MESSAGES');
403
		$tokenCount = count($this->_tokens);
404
 
405
		while (($tokenCount - $count) > 1) {
406
			$countToken = $this->_tokens[$count];
407
			$firstParenthesis = $this->_tokens[$count + 1];
408
			if (!is_array($countToken)) {
409
				$count++;
410
				continue;
411
			}
412
 
413
			list($type, $string, $line) = $countToken;
414
			if (($type == T_STRING) && ($string === $functionName) && ($firstParenthesis === '(')) {
415
				$position = $count;
416
				$depth = 0;
417
 
418
				while (!$depth) {
419
					if ($this->_tokens[$position] === '(') {
420
						$depth++;
421
					} elseif ($this->_tokens[$position] === ')') {
422
						$depth--;
423
					}
424
					$position++;
425
				}
426
 
427
				$mapCount = count($map);
428
				$strings = $this->_getStrings($position, $mapCount);
429
 
430
				if ($mapCount === count($strings)) {
431
					extract(array_combine($map, $strings));
432
					$category = isset($category) ? $category : 6;
433
					$category = (int)$category;
434
					$categoryName = $categories[$category];
435
 
436
					$domain = isset($domain) ? $domain : 'default';
437
					$details = array(
438
						'file' => $this->_file,
439
						'line' => $line,
440
					);
441
					if (isset($plural)) {
442
						$details['msgid_plural'] = $plural;
443
					}
444
					if (isset($context)) {
445
						$details['msgctxt'] = $context;
446
					}
447
					// Skip LC_TIME files as we use a special file format for them.
448
					if ($categoryName !== 'LC_TIME') {
449
						$this->_addTranslation($categoryName, $domain, $singular, $details);
450
					}
451
				} elseif (!is_array($this->_tokens[$count - 1]) || $this->_tokens[$count - 1][0] != T_FUNCTION) {
452
					$this->_markerError($this->_file, $line, $functionName, $count);
453
				}
454
			}
455
			$count++;
456
		}
457
	}
458
 
459
/**
460
 * Looks for models in the application and extracts the validation messages
461
 * to be added to the translation map
462
 *
463
 * @return void
464
 */
465
	protected function _extractValidationMessages() {
466
		if (!$this->_extractValidation) {
467
			return;
468
		}
469
 
470
		$plugins = array(null);
471
		if (empty($this->params['exclude-plugins'])) {
472
			$plugins = array_merge($plugins, App::objects('plugin', null, false));
473
		}
474
		foreach ($plugins as $plugin) {
475
			$this->_extractPluginValidationMessages($plugin);
476
		}
477
	}
478
 
479
/**
480
 * Extract validation messages from application or plugin models
481
 *
482
 * @param string $plugin Plugin name or `null` to process application models
483
 * @return void
484
 */
485
	protected function _extractPluginValidationMessages($plugin = null) {
486
		App::uses('AppModel', 'Model');
487
		if (!empty($plugin)) {
488
			if (!CakePlugin::loaded($plugin)) {
489
				return;
490
			}
491
			App::uses($plugin . 'AppModel', $plugin . '.Model');
492
			$plugin = $plugin . '.';
493
		}
494
		$models = App::objects($plugin . 'Model', null, false);
495
 
496
		foreach ($models as $model) {
497
			App::uses($model, $plugin . 'Model');
498
			$reflection = new ReflectionClass($model);
499
			if (!$reflection->isSubClassOf('Model')) {
500
				continue;
501
			}
502
			$properties = $reflection->getDefaultProperties();
503
			$validate = $properties['validate'];
504
			if (empty($validate)) {
505
				continue;
506
			}
507
 
508
			$file = $reflection->getFileName();
509
			$domain = $this->_validationDomain;
510
			if (!empty($properties['validationDomain'])) {
511
				$domain = $properties['validationDomain'];
512
			}
513
			foreach ($validate as $field => $rules) {
514
				$this->_processValidationRules($field, $rules, $file, $domain);
515
			}
516
		}
517
	}
518
 
519
/**
520
 * Process a validation rule for a field and looks for a message to be added
521
 * to the translation map
522
 *
523
 * @param string $field the name of the field that is being processed
524
 * @param array $rules the set of validation rules for the field
525
 * @param string $file the file name where this validation rule was found
526
 * @param string $domain default domain to bind the validations to
527
 * @param string $category the translation category
528
 * @return void
529
 */
530
	protected function _processValidationRules($field, $rules, $file, $domain, $category = 'LC_MESSAGES') {
531
		if (!is_array($rules)) {
532
			return;
533
		}
534
 
535
		$dims = Hash::dimensions($rules);
536
		if ($dims === 1 || ($dims === 2 && isset($rules['message']))) {
537
			$rules = array($rules);
538
		}
539
 
540
		foreach ($rules as $rule => $validateProp) {
541
			$msgid = null;
542
			if (isset($validateProp['message'])) {
543
				if (is_array($validateProp['message'])) {
544
					$msgid = $validateProp['message'][0];
545
				} else {
546
					$msgid = $validateProp['message'];
547
				}
548
			} elseif (is_string($rule)) {
549
				$msgid = $rule;
550
			}
551
			if ($msgid) {
552
				$msgid = $this->_formatString(sprintf("'%s'", $msgid));
553
				$details = array(
554
					'file' => $file,
555
					'line' => 'validation for field ' . $field
556
				);
557
				$this->_addTranslation($category, $domain, $msgid, $details);
558
			}
559
		}
560
	}
561
 
562
/**
563
 * Build the translate template file contents out of obtained strings
564
 *
565
 * @return void
566
 */
567
	protected function _buildFiles() {
568
		$paths = $this->_paths;
569
		$paths[] = realpath(APP) . DS;
570
		foreach ($this->_translations as $category => $domains) {
571
			foreach ($domains as $domain => $translations) {
572
				foreach ($translations as $msgid => $contexts) {
573
					foreach ($contexts as $context => $details) {
574
						$plural = $details['msgid_plural'];
575
						$files = $details['references'];
576
						$occurrences = array();
577
						foreach ($files as $file => $lines) {
578
							$lines = array_unique($lines);
579
							$occurrences[] = $file . ':' . implode(';', $lines);
580
						}
581
						$occurrences = implode("\n#: ", $occurrences);
582
						$header = '#: ' . str_replace(DS, '/', str_replace($paths, '', $occurrences)) . "\n";
583
 
584
						$sentence = '';
585
						if ($context) {
586
							$sentence .= "msgctxt \"{$context}\"\n";
587
						}
588
						if ($plural === false) {
589
							$sentence .= "msgid \"{$msgid}\"\n";
590
							$sentence .= "msgstr \"\"\n\n";
591
						} else {
592
							$sentence .= "msgid \"{$msgid}\"\n";
593
							$sentence .= "msgid_plural \"{$plural}\"\n";
594
							$sentence .= "msgstr[0] \"\"\n";
595
							$sentence .= "msgstr[1] \"\"\n\n";
596
						}
597
 
598
						$this->_store($category, $domain, $header, $sentence);
599
						if (($category !== 'LC_MESSAGES' || $domain !== 'default') && $this->_merge) {
600
							$this->_store('LC_MESSAGES', 'default', $header, $sentence);
601
						}
602
					}
603
				}
604
			}
605
		}
606
	}
607
 
608
/**
609
 * Prepare a file to be stored
610
 *
611
 * @param string $category The category
612
 * @param string $domain The domain
613
 * @param string $header The header content.
614
 * @param string $sentence The sentence to store.
615
 * @return void
616
 */
617
	protected function _store($category, $domain, $header, $sentence) {
618
		if (!isset($this->_storage[$category])) {
619
			$this->_storage[$category] = array();
620
		}
621
		if (!isset($this->_storage[$category][$domain])) {
622
			$this->_storage[$category][$domain] = array();
623
		}
624
		if (!isset($this->_storage[$category][$domain][$sentence])) {
625
			$this->_storage[$category][$domain][$sentence] = $header;
626
		} else {
627
			$this->_storage[$category][$domain][$sentence] .= $header;
628
		}
629
	}
630
 
631
/**
632
 * Write the files that need to be stored
633
 *
634
 * @return void
635
 */
636
	protected function _writeFiles() {
637
		$overwriteAll = false;
638
		if (!empty($this->params['overwrite'])) {
639
			$overwriteAll = true;
640
		}
641
		foreach ($this->_storage as $category => $domains) {
642
			foreach ($domains as $domain => $sentences) {
643
				$output = $this->_writeHeader();
644
				foreach ($sentences as $sentence => $header) {
645
					$output .= $header . $sentence;
646
				}
647
 
648
				$filename = $domain . '.pot';
649
				if ($category === 'LC_MESSAGES') {
650
					$File = new File($this->_output . $filename);
651
				} else {
652
					new Folder($this->_output . $category, true);
653
					$File = new File($this->_output . $category . DS . $filename);
654
				}
655
				$response = '';
656
				while ($overwriteAll === false && $File->exists() && strtoupper($response) !== 'Y') {
657
					$this->out();
658
					$response = $this->in(
659
						__d('cake_console', 'Error: %s already exists in this location. Overwrite? [Y]es, [N]o, [A]ll', $filename),
660
						array('y', 'n', 'a'),
661
						'y'
662
					);
663
					if (strtoupper($response) === 'N') {
664
						$response = '';
665
						while (!$response) {
666
							$response = $this->in(__d('cake_console', "What would you like to name this file?"), null, 'new_' . $filename);
667
							$File = new File($this->_output . $response);
668
							$filename = $response;
669
						}
670
					} elseif (strtoupper($response) === 'A') {
671
						$overwriteAll = true;
672
					}
673
				}
674
				$File->write($output);
675
				$File->close();
676
			}
677
		}
678
	}
679
 
680
/**
681
 * Build the translation template header
682
 *
683
 * @return string Translation template header
684
 */
685
	protected function _writeHeader() {
686
		$output = "# LANGUAGE translation of CakePHP Application\n";
687
		$output .= "# Copyright YEAR NAME <EMAIL@ADDRESS>\n";
688
		$output .= "#\n";
689
		$output .= "#, fuzzy\n";
690
		$output .= "msgid \"\"\n";
691
		$output .= "msgstr \"\"\n";
692
		$output .= "\"Project-Id-Version: PROJECT VERSION\\n\"\n";
693
		$output .= "\"PO-Revision-Date: YYYY-mm-DD HH:MM+ZZZZ\\n\"\n";
694
		$output .= "\"Last-Translator: NAME <EMAIL@ADDRESS>\\n\"\n";
695
		$output .= "\"Language-Team: LANGUAGE <EMAIL@ADDRESS>\\n\"\n";
696
		$output .= "\"MIME-Version: 1.0\\n\"\n";
697
		$output .= "\"Content-Type: text/plain; charset=utf-8\\n\"\n";
698
		$output .= "\"Content-Transfer-Encoding: 8bit\\n\"\n";
699
		$output .= "\"Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\\n\"\n\n";
700
		return $output;
701
	}
702
 
703
/**
704
 * Get the strings from the position forward
705
 *
706
 * @param int &$position Actual position on tokens array
707
 * @param int $target Number of strings to extract
708
 * @return array Strings extracted
709
 */
710
	protected function _getStrings(&$position, $target) {
711
		$strings = array();
712
		$count = count($strings);
713
		while ($count < $target && ($this->_tokens[$position] === ',' || $this->_tokens[$position][0] == T_CONSTANT_ENCAPSED_STRING || $this->_tokens[$position][0] == T_LNUMBER)) {
714
			$count = count($strings);
715
			if ($this->_tokens[$position][0] == T_CONSTANT_ENCAPSED_STRING && $this->_tokens[$position + 1] === '.') {
716
				$string = '';
717
				while ($this->_tokens[$position][0] == T_CONSTANT_ENCAPSED_STRING || $this->_tokens[$position] === '.') {
718
					if ($this->_tokens[$position][0] == T_CONSTANT_ENCAPSED_STRING) {
719
						$string .= $this->_formatString($this->_tokens[$position][1]);
720
					}
721
					$position++;
722
				}
723
				$strings[] = $string;
724
			} elseif ($this->_tokens[$position][0] == T_CONSTANT_ENCAPSED_STRING) {
725
				$strings[] = $this->_formatString($this->_tokens[$position][1]);
726
			} elseif ($this->_tokens[$position][0] == T_LNUMBER) {
727
				$strings[] = $this->_tokens[$position][1];
728
			}
729
			$position++;
730
		}
731
		return $strings;
732
	}
733
 
734
/**
735
 * Format a string to be added as a translatable string
736
 *
737
 * @param string $string String to format
738
 * @return string Formatted string
739
 */
740
	protected function _formatString($string) {
741
		$quote = substr($string, 0, 1);
742
		$string = substr($string, 1, -1);
743
		if ($quote === '"') {
744
			$string = stripcslashes($string);
745
		} else {
746
			$string = strtr($string, array("\\'" => "'", "\\\\" => "\\"));
747
		}
748
		$string = str_replace("\r\n", "\n", $string);
749
		return addcslashes($string, "\0..\37\\\"");
750
	}
751
 
752
/**
753
 * Indicate an invalid marker on a processed file
754
 *
755
 * @param string $file File where invalid marker resides
756
 * @param int $line Line number
757
 * @param string $marker Marker found
758
 * @param int $count Count
759
 * @return void
760
 */
761
	protected function _markerError($file, $line, $marker, $count) {
762
		$this->err(__d('cake_console', "Invalid marker content in %s:%s\n* %s(", $file, $line, $marker));
763
		$count += 2;
764
		$tokenCount = count($this->_tokens);
765
		$parenthesis = 1;
766
 
767
		while ((($tokenCount - $count) > 0) && $parenthesis) {
768
			if (is_array($this->_tokens[$count])) {
769
				$this->err($this->_tokens[$count][1], false);
770
			} else {
771
				$this->err($this->_tokens[$count], false);
772
				if ($this->_tokens[$count] === '(') {
773
					$parenthesis++;
774
				}
775
 
776
				if ($this->_tokens[$count] === ')') {
777
					$parenthesis--;
778
				}
779
			}
780
			$count++;
781
		}
782
		$this->err("\n", true);
783
	}
784
 
785
/**
786
 * Search files that may contain translatable strings
787
 *
788
 * @return void
789
 */
790
	protected function _searchFiles() {
791
		$pattern = false;
792
		if (!empty($this->_exclude)) {
793
			$exclude = array();
794
			foreach ($this->_exclude as $e) {
795
				if (DS !== '\\' && $e[0] !== DS) {
796
					$e = DS . $e;
797
				}
798
				$exclude[] = preg_quote($e, '/');
799
			}
800
			$pattern = '/' . implode('|', $exclude) . '/';
801
		}
802
		foreach ($this->_paths as $path) {
803
			$Folder = new Folder($path);
804
			$files = $Folder->findRecursive('.*\.(php|ctp|thtml|inc|tpl)', true);
805
			if (!empty($pattern)) {
806
				foreach ($files as $i => $file) {
807
					if (preg_match($pattern, $file)) {
808
						unset($files[$i]);
809
					}
810
				}
811
				$files = array_values($files);
812
			}
813
			$this->_files = array_merge($this->_files, $files);
814
		}
815
	}
816
 
817
/**
818
 * Returns whether this execution is meant to extract string only from directories in folder represented by the
819
 * APP constant, i.e. this task is extracting strings from same application.
820
 *
821
 * @return bool
822
 */
823
	protected function _isExtractingApp() {
824
		return $this->_paths === array(APP);
825
	}
826
 
827
/**
828
 * Checks whether or not a given path is usable for writing.
829
 *
830
 * @param string $path Path to folder
831
 * @return bool true if it exists and is writable, false otherwise
832
 */
833
	protected function _isPathUsable($path) {
834
		return is_dir($path) && is_writable($path);
835
	}
836
}