| 1 | <?PHP |
| 2 | |
| 3 | /** |
| 4 | * gettext.php |
| 5 | * |
| 6 | * Copyright (c) 1999-2002 The SquirrelMail Project Team |
| 7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
| 8 | * |
| 9 | * Alternate to the system's built-in gettext. |
| 10 | * relies on .po files (can't read .mo easily). |
| 11 | * Uses the session for caching (speed increase) |
| 12 | * Possible use in other PHP scripts? The only SM-specific thing is |
| 13 | * $sm_language, I think |
| 14 | * |
| 15 | * $Id$ |
| 16 | */ |
| 17 | |
| 18 | /*****************************************************************/ |
| 19 | /*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!! ***/ |
| 20 | /*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION. ***/ |
| 21 | /*** + Base level indent should begin at left margin, as ***/ |
| 22 | /*** the global definition below. ***/ |
| 23 | /*** + All identation should consist of four space blocks ***/ |
| 24 | /*** + Tab characters are evil. ***/ |
| 25 | /*** + all comments should use "slash-star ... star-slash" ***/ |
| 26 | /*** style -- no pound characters, no slash-slash style ***/ |
| 27 | /*** + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD ***/ |
| 28 | /*** ALWAYS USE { AND } CHARACTERS!!! ***/ |
| 29 | /*** + Please use ' instead of ", when possible. Note " ***/ |
| 30 | /*** should always be used in _( ) function calls. ***/ |
| 31 | /*** Thank you for your help making the SM code more readable. ***/ |
| 32 | /*****************************************************************/ |
| 33 | |
| 34 | global $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded, |
| 35 | $gettext_php_translateStrings, $gettext_php_loaded_language, |
| 36 | $gettext_php_short_circuit; |
| 37 | |
| 38 | if (! isset($gettext_php_loaded)) { |
| 39 | $gettext_php_loaded = false; |
| 40 | session_register('gettext_php_loaded'); |
| 41 | } |
| 42 | if (! isset($gettext_php_domain)) { |
| 43 | $gettext_php_domain = ''; |
| 44 | session_register('gettext_php_domain'); |
| 45 | } |
| 46 | if (! isset($gettext_php_dir)) { |
| 47 | $gettext_php_dir = ''; |
| 48 | session_register('gettext_php_dir'); |
| 49 | } |
| 50 | if (! isset($gettext_php_translateStrings)) { |
| 51 | $gettext_php_translateStrings = array(); |
| 52 | session_register('gettext_php_translateStrings'); |
| 53 | } |
| 54 | if (! isset($gettext_php_loaded_language)) { |
| 55 | $gettext_php_loaded_language = ''; |
| 56 | session_register('gettext_php_loaded_language'); |
| 57 | } |
| 58 | if (! isset($gettext_php_short_circuit)) { |
| 59 | $gettext_php_short_circuit = false; |
| 60 | session_register('gettext_php_short_circuit'); |
| 61 | } |
| 62 | |
| 63 | function gettext_php_load_strings() { |
| 64 | global $squirrelmail_language, $gettext_php_translateStrings, |
| 65 | $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded, |
| 66 | $gettext_php_loaded_language, $gettext_php_short_circuit; |
| 67 | |
| 68 | // $squirrelmail_language gives 'en' for English, 'de' for German, |
| 69 | // etc. I didn't wanna use getenv or similar, but you easily could |
| 70 | // change my code to do that. |
| 71 | |
| 72 | $gettext_php_translateStrings = array(); |
| 73 | |
| 74 | $gettext_php_short_circuit = false; // initialization |
| 75 | |
| 76 | $filename = $gettext_php_dir; |
| 77 | if (substr($filename, -1) != '/') |
| 78 | $filename .= '/'; |
| 79 | $filename .= $squirrelmail_language . '/LC_MESSAGES/' . |
| 80 | $gettext_php_domain . '.po'; |
| 81 | |
| 82 | $file = @fopen($filename, 'r'); |
| 83 | if ($file == false) { |
| 84 | // Uh-ho -- we can't load the file. Just fake it. :-) |
| 85 | // This is also for English, which doesn't use translations |
| 86 | $gettext_php_loaded = true; |
| 87 | $gettext_php_loaded_language = $squirrelmail_language; |
| 88 | $gettext_php_short_circuit = true; // Avoid fuzzy matching when we |
| 89 | // didn't load strings |
| 90 | return; |
| 91 | } |
| 92 | |
| 93 | $key = ''; |
| 94 | $SkipRead = false; |
| 95 | while (! feof($file)) { |
| 96 | if (! $SkipRead) |
| 97 | $line = trim(fgets($file, 4096)); |
| 98 | else |
| 99 | $SkipRead = false; |
| 100 | |
| 101 | if (ereg('^msgid "(.*)"$', $line, $match)) { |
| 102 | if ($match[1] == '') { |
| 103 | // Potential multi-line |
| 104 | // msgid "" |
| 105 | // "string string " |
| 106 | // "string string" |
| 107 | $key = ''; |
| 108 | $line = trim(fgets($file, 4096)); |
| 109 | while (ereg('^[ ]*"(.*)"[ ]*$', $line, $match)) { |
| 110 | $key .= $match[1]; |
| 111 | $line = trim(fgets($file, 4096)); |
| 112 | } |
| 113 | $SkipRead = true; |
| 114 | } else { |
| 115 | // msgid "string string" |
| 116 | $key = $match[1]; |
| 117 | } |
| 118 | } elseif (ereg('^msgstr "(.*)"$', $line, $match)) { |
| 119 | if ($match[1] == '') { |
| 120 | // Potential multi-line |
| 121 | // msgstr "" |
| 122 | // "string string " |
| 123 | // "string string" |
| 124 | $gettext_php_translateStrings[$key] = ''; |
| 125 | $line = trim(fgets($file, 4096)); |
| 126 | while (ereg('^[ ]*"(.*)"[ ]*$', $line, $match)) { |
| 127 | $gettext_php_translateStrings[$key] .= $match[1]; |
| 128 | $line = trim(fgets($file, 4096)); |
| 129 | } |
| 130 | $SkipRead = true; |
| 131 | } else { |
| 132 | // msgstr "string string" |
| 133 | $gettext_php_translateStrings[$key] = $match[1]; |
| 134 | } |
| 135 | $gettext_php_translateStrings[$key] = |
| 136 | stripslashes($gettext_php_translateStrings[$key]); |
| 137 | // If there is no translation, just use the untranslated string |
| 138 | if ($gettext_php_translateStrings[$key] == '') |
| 139 | $gettext_php_translateStrings[$key] = $key; |
| 140 | $key = ''; |
| 141 | } |
| 142 | } |
| 143 | fclose($file); |
| 144 | |
| 145 | $gettext_php_loaded = true; |
| 146 | $gettext_php_loaded_language = $squirrelmail_language; |
| 147 | } |
| 148 | |
| 149 | function _($str) { |
| 150 | global $gettext_php_loaded, $gettext_php_translateStrings, |
| 151 | $squirrelmail_language, $gettext_php_loaded_language, |
| 152 | $gettext_php_short_circuit; |
| 153 | |
| 154 | if (! $gettext_php_loaded || |
| 155 | $gettext_php_loaded_language != $squirrelmail_language) |
| 156 | gettext_php_load_strings(); |
| 157 | |
| 158 | // Try finding the exact string |
| 159 | if (isset($gettext_php_translateStrings[$str])) |
| 160 | return $gettext_php_translateStrings[$str]; |
| 161 | |
| 162 | // See if we should short-circuit |
| 163 | if ($gettext_php_short_circuit) { |
| 164 | $gettext_php_translateStrings[$str] = $str; |
| 165 | return $str; |
| 166 | } |
| 167 | |
| 168 | // Look for a string that is very close to the one we want |
| 169 | // Very computationally expensive |
| 170 | $oldPercent = 0; |
| 171 | $oldStr = ''; |
| 172 | $newPercent = 0; |
| 173 | foreach ($gettext_php_translateStrings as $k => $v) { |
| 174 | similar_text($str, $k, $newPercent); |
| 175 | if ($newPercent > $oldPercent) { |
| 176 | $oldStr = $v; |
| 177 | $oldPercent = $newPercent; |
| 178 | } |
| 179 | } |
| 180 | // Require 80% match or better |
| 181 | // Adjust to suit your needs |
| 182 | if ($oldPercent > 80) { |
| 183 | // Remember this so we don't need to search again |
| 184 | $gettext_php_translateStrings[$str] = $oldStr; |
| 185 | return $oldStr; |
| 186 | } |
| 187 | |
| 188 | // Remember this so we don't need to search again |
| 189 | $gettext_php_translateStrings[$str] = $str; |
| 190 | return $str; |
| 191 | } |
| 192 | |
| 193 | function bindtextdomain($name, $dir) { |
| 194 | global $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded; |
| 195 | |
| 196 | if ($gettext_php_domain != $name) { |
| 197 | $gettext_php_domain = $name; |
| 198 | $gettext_php_loaded = false; |
| 199 | } |
| 200 | if ($gettext_php_dir != $dir) { |
| 201 | $gettext_php_dir = $dir; |
| 202 | $gettext_php_loaded = false; |
| 203 | } |
| 204 | |
| 205 | return $dir; |
| 206 | } |
| 207 | |
| 208 | function textdomain($name = false) { |
| 209 | global $gettext_php_domain, $gettext_php_loaded; |
| 210 | |
| 211 | if ($name != false && $gettext_php_domain != $name) { |
| 212 | $gettext_php_domain = $name; |
| 213 | $gettext_php_loaded = false; |
| 214 | } |
| 215 | return $gettext_php_domain; |
| 216 | } |
| 217 | |