aboutsummaryrefslogtreecommitdiffstats
path: root/php-mo.php
blob: 6c1b901caf3fe6581b6f5c201c099e217b375136 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
<?php
/**
* Changes from php.mo:
* supress the error if there's no file
* fixed "fuzzy flag first line" bug which didn't saved previous proper string at all
* fix the warning if list finds no $data
* added case for commented unused string
* proper handling of msgctxt
* better storing of same msgid
* corrected data structure for correct counting of plural msgstr
* don't add last translation if it's fuzzy
* removed unedeed phpmo_convert and phpmo_write_mo_file
* more info on https://bugs.mageia.org/show_bug.cgi?id=14899
* added option for passing translation directly as an array
* changed structure of resulting array
* 
* it returns array of translations:
* $dictionary = phpmo_parse_po_file('input.po');
*
* $dictionary = array (
*	'' => array (
*		0 => array (
*			0 => 'Project-Id-Version: ...',
*		),
*	),
*	'msgid string for translation 1' => array ( // msgid
*		0 => array (
*			0 => 'translated string 1', // msgstr
*		),
*	),
*	'msgid string for translation 2' => array ( // msgid
*		0 => array (
*			0 => 'translated string 2', // msgstr
*		),
*		'context explanation for msgstr[1]' => array (   // msgctxt
*			0 => 'translated string 2 but different context', // msgstr
*		),
*		'context explanation for msgstr[2]' => array ( // msgctxt
*			0 => 'another translated string 2 with different context', // msgstr
*		),
*	),
*	'msgid string for translation 3' => array ( // msgid
*		0 => array (
*			'msgid_plural' => 'plural string for translation 3', // msgid_plural
*			0 => 'translated string 3 for nplurals 0', // msgstr[0]
*			1 => 'translated string 3 for nplurals 1', // msgstr[1]
*			2 => 'translated string 3 for nplurals 2', // msgstr[2]
*		),
*	),
*	'msgid string for translation 4' => array ( 			 // msgid
*		'context explanation for msgstr[0]' => array ( 		 // msgctxt
*			'msgid_plural' => 'plural string for translation 4', // msgid_plural
*			0 => 'translated string 4 for nplurals 0',		 // msgstr[0]
*			1 => 'translated string 4 for nplurals 1',		 // msgstr[1]
*			2 => 'translated string 4 for nplurals 2',		 // msgstr[2]
*		),
*	),
* );
*
****************************************************************************************
*
* based on php.mo 0.1 by Joss Crowcroft (http://www.josscrowcroft.com)
* which is
* Based on php-msgfmt by Matthias Bauer (Copyright © 2007), a command-line PHP tool
* for converting .po files to .mo.
* (http://wordpress-soc-2007.googlecode.com/svn/trunk/moeffju/php-msgfmt/msgfmt.php)
*
* License: GPL v3 http://www.opensource.org/licenses/gpl-3.0.html
*/

function phpmo_clean_helper($x) {
	if (is_array($x)) {
		foreach ($x as $k => $v) {
			$x[$k] = phpmo_clean_helper($v);
		}
	} else {
		if ($x[0] == '"')
			$x = substr($x, 1, -1);
		$x = str_replace("\"\n\"", '', $x);
		$x = str_replace('$', '\\$', $x);
	}
	return $x;
}

/* Parse gettext .po files. */
/* @link http://www.gnu.org/software/gettext/manual/gettext.html#PO-Files */
function phpmo_parse_po_file($in, $translation_in_file = true) {
	if ($translation_in_file === true) {
		// read .po file
		$fh = @fopen($in, 'r');
		if ($fh === false) {
			// Could not open file resource
			return false;
		}
	} else {
		if (!is_array($in) || empty($in)) {
			// given translation not valid
			return false;
		}
		$translation_in_file = false;
	}

	// results array
	$hash = array ();
	// temporary array
	$temp = array ();
	// state
	$state = null;
	$fuzzy = false;
	$parse_condition = true;

	// iterate over lines
	while($parse_condition) {
	// output and test line for translation in file
	if ($translation_in_file) {
		if (($line = fgets($fh, 65536)) === false) {
			$parse_condition = false;
			continue;
		}
	// output and test line for translation in array
	} else {
		$line = current($in);
		$end_array_test = next($in);
		if (false === $end_array_test) {
			$parse_condition = false;
			continue;
		}
	}
		$line = trim($line);
		if ($line === '')
			continue;

		$array_of_splited_string = preg_split('/\s/', $line, 2);
		$key = $array_of_splited_string[0];
		$data = (isset($array_of_splited_string[1]) ? $array_of_splited_string[1] : '');
		switch ($key) {
			case '#,' : // flag...
			case '#'  : // translator-comments
			case '#.' : // extracted-comments
			case '#:' : // reference...
			case '#|' : // msgid previous-untranslated-string
			case '#~' : // commented-unused-string
				// start a new entry
				if (sizeof($temp) && array_key_exists('msgid', $temp) && array_key_exists('msgstr', $temp)) {
					if (!$fuzzy)
						$hash[] = $temp;
					$temp = array ();
					$state = null;
					$fuzzy = false;
				}
				if ($key == '#,') 
					$fuzzy = in_array('fuzzy', preg_split('/,\s*/', $data));
				break;
			case 'msgctxt' :
				// context
			case 'msgid' :
				// untranslated-string
			case 'msgid_plural' :
				// untranslated-string-plural
				$state = $key;
				// store previous entry if it exists
				if (sizeof($temp) && array_key_exists('msgid', $temp) && array_key_exists('msgstr', $temp)) {
					if (!$fuzzy)
						$hash[] = $temp;
					$temp = array ();
					$fuzzy = false;
				}
				if ($key == 'msgctxt') {
						if (array_key_exists('msgstr', $temp)) {
							$msgctxt_index = count($temp['msgstr']);
						} else {
							$msgctxt_index = 0;
						}
						$temp['msgctxt'][$msgctxt_index] = $data;
				} else {
					$temp[$state] = $data;
				}
				break;
			case 'msgstr' :
				// translated-string
				$state = 'msgstr';
				$temp[$state][] = $data;
				break;
			default :
				if (strpos($key, 'msgstr[') !== FALSE) {
					// translated-string-case-n
					$state = 'msgstr';
					$temp[$state][] = $data;
				} else {
					// continued lines
					switch ($state) {
						case 'msgid' :
						case 'msgid_plural' :
							$temp[$state] .= "\n" . $line;
							break;
						case 'msgctxt' :
						case 'msgstr' :
							$temp[$state][sizeof($temp[$state]) - 1] .= "\n" . $line;
							break;
						default :
							// parse error
							if ($translation_in_file) {
								fclose($fh);
							}
							return FALSE;
					}
				}
				break;
		}
	}
	if ($translation_in_file) {
		fclose($fh);
	}

	// add final entry
	if ($state == 'msgstr')
		if (!$fuzzy)
			$hash[] = $temp;

	// Cleanup data, merge multiline entries, reindex hash for ksort
	$temp = $hash;
	$hash = array ();
	foreach ($temp as $entry) {
		foreach ($entry as & $v) {
			$v = phpmo_clean_helper($v);
			if ($v === FALSE) {
				// parse error
				return FALSE;
			}
		}

		// add msgctxt if present
		$msgctxt = (array_key_exists('msgctxt', $entry) ? $entry['msgctxt'][0] : 0);
		// and also msgid_plural
		if (array_key_exists('msgid_plural', $entry)) {
			$entry['msgstr']['msgid_plural'] = $entry['msgid_plural'];
		}
		$hash[$entry['msgid']][$msgctxt] = $entry['msgstr'];
	}
	return $hash;
}