1<?php 2namespace Fisharebest\Webtrees; 3 4/** 5 * webtrees: online genealogy 6 * Copyright (C) 2015 webtrees development team 7 * This program is free software: you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation, either version 3 of the License, or 10 * (at your option) any later version. 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19use Fisharebest\Localization\Locale; 20use Fisharebest\Localization\Locale\LocaleEnUs; 21use Fisharebest\Localization\Translation; 22use Fisharebest\Localization\Translator; 23use Patchwork\TurkishUtf8; 24 25/** 26 * Class I18N - Functions to support internationalization (i18n) functionality. 27 */ 28class I18N { 29 /** @var Locale The current locale (e.g. LocaleEnGb) */ 30 private static $locale; 31 32 /** @var Translator */ 33 private static $translator; 34 35 // Digits are always rendered LTR, even in RTL text. 36 const DIGITS = '0123456789٠١٢٣٤٥٦٧٨٩۰۱۲۳۴۵۶۷۸۹'; 37 38 // Reversable character conversions from the UNICODE 5.1 database. 39 // It excludes ambiguous (turkish dotless i) and mixed-case (Dz) characters. 40 // The characters should be arranged in default unicode-collation order. 41 const ALPHABET_LOWER = 'aàáâãäåāăąǎǟǡǻȁȃȧḁạảấầẩẫậắằẳẵặⓐａæǣǽbḃḅḇⓑｂƀɓƃcçćĉċčḉⅽⓒｃƈdďḋḍḏḑḓⅾⓓｄdždzđɖɗƌðeèéêëēĕėęěȅȇȩḕḗḙḛḝẹẻẽếềểễệⓔｅǝəɛfḟⓕｆƒgĝğġģǧǵḡⓖｇǥɠɣƣhĥȟḣḥḧḩḫⓗｈƕħiìíîïĩīĭįǐȉȋḭḯỉịⅰⓘｉⅱⅲijⅳⅸɨɩjĵⓙｊkķǩḱḳḵⓚｋƙlĺļľḷḹḻḽⅼⓛｌŀljłƚmḿṁṃⅿⓜｍnñńņňǹṅṇṉṋⓝｎnjɲƞŋoòóôõöōŏőơǒǫǭȍȏȫȭȯȱṍṏṑṓọỏốồổỗộớờởỡợⓞｏœøǿɔɵȣpṕṗⓟｐƥqⓠｑrŕŗřȑȓṙṛṝṟⓡｒʀsśŝşšșṡṣṥṧṩⓢｓʃtţťțṫṭṯṱⓣｔŧƭʈuùúûüũūŭůűųưǔǖǘǚǜȕȗṳṵṷṹṻụủứừửữựⓤｕʉɯʊvṽṿⅴⓥｖⅵⅶⅷʋʌwŵẁẃẅẇẉⓦｗxẋẍⅹⓧｘⅺⅻyýÿŷȳẏỳỵỷỹⓨｙƴzźżžẑẓẕⓩｚƶȥǯʒƹȝþƿƨƽƅάαἀἁἂἃἄἅἆἇὰάᾀᾁᾂᾃᾄᾅᾆᾇᾰᾱᾳβγδέεἐἑἒἓἔἕὲέϝϛζήηἠἡἢἣἤἥἦἧὴήᾐᾑᾒᾓᾔᾕᾖᾗῃθϊἰἱἲἳἴἵἶἷὶίῐῑκϗλμνξοόὀὁὂὃὄὅὸόπϟϙρῥσϲτυϋύὑὓὕὗὺύῠῡφχψωώὠὡὢὣὤὥὦὧὼώᾠᾡᾢᾣᾤᾥᾦᾧῳϡϸϻϣϥϧϩϫϭϯаӑӓәӛӕбвгґғҕдԁђԃѓҙеѐёӗєжӂӝҗзԅӟѕӡԇиѝӣҋӥіїйјкқӄҡҟҝлӆљԉмӎнӊңӈҥњԋоӧөӫпҧҁрҏсԍҫтԏҭћќуӯўӱӳүұѹфхҳһѡѿѽѻцҵчӵҷӌҹҽҿџшщъыӹьҍѣэӭюяѥѧѫѩѭѯѱѳѵѷҩաբգդեզէըթժիլխծկհձղճմյնշոչպջռսվտրցւփքօֆȼɂɇɉɋɍɏͱͳͷͻͼͽӏӷӻӽӿԑԓԕԗԙԛԝԟԡԣԥᵹᵽỻỽỿⅎↄⰰⰱⰲⰳⰴⰵⰶⰷⰸⰹⰺⰻⰼⰽⰾⰿⱀⱁⱂⱃⱄⱅⱆⱇⱈⱉⱊⱋⱌⱍⱎⱏⱐⱑⱒⱓⱔⱕⱖⱗⱘⱙⱚⱛⱜⱝⱞⱡⱨⱪⱬⱳⱶⲁⲃⲅⲇⲉⲋⲍⲏⲑⲓⲕⲗⲙⲛⲝⲟⲡⲣⲥⲧⲩⲫⲭⲯⲱⲳⲵⲷⲹⲻⲽⲿⳁⳃⳅⳇⳉⳋⳍⳏⳑⳓⳕⳗⳙⳛⳝⳟⳡⳣⳬⳮⴀⴁⴂⴃⴄⴅⴆⴇⴈⴉⴊⴋⴌⴍⴎⴏⴐⴑⴒⴓⴔⴕⴖⴗⴘⴙⴚⴛⴜⴝⴞⴟⴠⴡⴢⴣⴤⴥꙁꙃꙅꙇꙉꙋꙍꙏꙑꙓꙕꙗꙙꙛꙝꙟꙣꙥꙧꙩꙫꙭꚁꚃꚅꚇꚉꚋꚍꚏꚑꚓꚕꚗꜣꜥꜧꜩꜫꜭꜯꜳꜵꜷꜹꜻꜽꜿꝁꝃꝅꝇꝉꝋꝍꝏꝑꝓꝕꝗꝙꝛꝝꝟꝡꝣꝥꝧꝩꝫꝭꝯꝺꝼꝿꞁꞃꞅꞇꞌ'; 42 const ALPHABET_UPPER = 'AÀÁÂÃÄÅĀĂĄǍǞǠǺȀȂȦḀẠẢẤẦẨẪẬẮẰẲẴẶⒶＡÆǢǼBḂḄḆⒷＢɃƁƂCÇĆĈĊČḈⅭⒸＣƇDĎḊḌḎḐḒⅮⒹＤDŽDZĐƉƊƋÐEÈÉÊËĒĔĖĘĚȄȆȨḔḖḘḚḜẸẺẼẾỀỂỄỆⒺＥƎƏƐFḞⒻＦƑGĜĞĠĢǦǴḠⒼＧǤƓƔƢHĤȞḢḤḦḨḪⒽＨǶĦIÌÍÎÏĨĪĬĮǏȈȊḬḮỈỊⅠⒾＩⅡⅢIJⅣⅨƗƖJĴⒿＪKĶǨḰḲḴⓀＫƘLĹĻĽḶḸḺḼⅬⓁＬĿLJŁȽMḾṀṂⅯⓂＭNÑŃŅŇǸṄṆṈṊⓃＮNJƝȠŊOÒÓÔÕÖŌŎŐƠǑǪǬȌȎȪȬȮȰṌṎṐṒỌỎỐỒỔỖỘỚỜỞỠỢⓄＯŒØǾƆƟȢPṔṖⓅＰƤQⓆＱRŔŖŘȐȒṘṚṜṞⓇＲƦSŚŜŞŠȘṠṢṤṦṨⓈＳƩTŢŤȚṪṬṮṰⓉＴŦƬƮUÙÚÛÜŨŪŬŮŰŲƯǓǕǗǙǛȔȖṲṴṶṸṺỤỦỨỪỬỮỰⓊＵɄƜƱVṼṾⅤⓋＶⅥⅦⅧƲɅWŴẀẂẄẆẈⓌＷXẊẌⅩⓍＸⅪⅫYÝŸŶȲẎỲỴỶỸⓎＹƳZŹŻŽẐẒẔⓏＺƵȤǮƷƸȜÞǷƧƼƄΆΑἈἉἊἋἌἍἎἏᾺΆᾈᾉᾊᾋᾌᾍᾎᾏᾸᾹᾼΒΓΔΈΕἘἙἚἛἜἝῈΈϜϚΖΉΗἨἩἪἫἬἭἮἯῊΉᾘᾙᾚᾛᾜᾝᾞᾟῌΘΪἸἹἺἻἼἽἾἿῚΊῘῙΚϏΛΜΝΞΟΌὈὉὊὋὌὍῸΌΠϞϘΡῬΣϹΤΥΫΎὙὛὝὟῪΎῨῩΦΧΨΩΏὨὩὪὫὬὭὮὯῺΏᾨᾩᾪᾫᾬᾭᾮᾯῼϠϷϺϢϤϦϨϪϬϮАӐӒӘӚӔБВГҐҒҔДԀЂԂЃҘЕЀЁӖЄЖӁӜҖЗԄӞЅӠԆИЍӢҊӤІЇЙЈКҚӃҠҞҜЛӅЉԈМӍНӉҢӇҤЊԊОӦӨӪПҦҀРҎСԌҪТԎҬЋЌУӮЎӰӲҮҰѸФХҲҺѠѾѼѺЦҴЧӴҶӋҸҼҾЏШЩЪЫӸЬҌѢЭӬЮЯѤѦѪѨѬѮѰѲѴѶҨԱԲԳԴԵԶԷԸԹԺԻԼԽԾԿՀՁՂՃՄՅՆՇՈՉՊՋՌՍՎՏՐՑՒՓՔՕՖȻɁɆɈɊɌɎͰͲͶϽϾϿӀӶӺӼӾԐԒԔԖԘԚԜԞԠԢԤꝽⱣỺỼỾℲↃⰀⰁⰂⰃⰄⰅⰆⰇⰈⰉⰊⰋⰌⰍⰎⰏⰐⰑⰒⰓⰔⰕⰖⰗⰘⰙⰚⰛⰜⰝⰞⰟⰠⰡⰢⰣⰤⰥⰦⰧⰨⰩⰪⰫⰬⰭⰮⱠⱧⱩⱫⱲⱵⲀⲂⲄⲆⲈⲊⲌⲎⲐⲒⲔⲖⲘⲚⲜⲞⲠⲢⲤⲦⲨⲪⲬⲮⲰⲲⲴⲶⲸⲺⲼⲾⳀⳂⳄⳆⳈⳊⳌⳎⳐⳒⳔⳖⳘⳚⳜⳞⳠⳢⳫⳭႠႡႢႣႤႥႦႧႨႩႪႫႬႭႮႯႰႱႲႳႴႵႶႷႸႹႺႻႼႽႾႿჀჁჂჃჄჅꙀꙂꙄꙆꙈꙊꙌꙎꙐꙒꙔꙖꙘꙚꙜꙞꙢꙤꙦꙨꙪꙬꚀꚂꚄꚆꚈꚊꚌꚎꚐꚒꚔꚖꜢꜤꜦꜨꜪꜬꜮꜲꜴꜶꜸꜺꜼꜾꝀꝂꝄꝆꝈꝊꝌꝎꝐꝒꝔꝖꝘꝚꝜꝞꝠꝢꝤꝦꝨꝪꝬꝮꝹꝻꝾꞀꞂꞄꞆꞋ'; 43 44 // Alphabet for the currently selected locale 45 private static $alphabet_lower = 'abcdefghijklmnopqrstuvwxyz'; 46 private static $alphabet_upper = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; 47 48 // Lookup table to convert unicode code-points into scripts. 49 // See https://en.wikipedia.org/wiki/Unicode_block 50 // Note: we only need details for scripts of languages into which webtrees is translated. 51 private static $scripts = array( 52 array('Latn', 0x0041, 0x005A), // a-z 53 array('Latn', 0x0061, 0x007A), // A-Z 54 array('Latn', 0x0100, 0x02AF), 55 array('Grek', 0x0370, 0x03FF), 56 array('Cyrl', 0x0400, 0x052F), 57 array('Hebr', 0x0590, 0x05FF), 58 array('Arab', 0x0600, 0x06FF), 59 array('Arab', 0x0750, 0x077F), 60 array('Arab', 0x08A0, 0x08FF), 61 array('Deva', 0x0900, 0x097F), 62 array('Taml', 0x0B80, 0x0BFF), 63 array('Sinh', 0x0D80, 0x0DFF), 64 array('Thai', 0x0E00, 0x0E7F), 65 array('Geor', 0x10A0, 0x10FF), 66 array('Grek', 0x1F00, 0x1FFF), 67 array('Deva', 0xA8E0, 0xA8FF), 68 array('Hans', 0x3000, 0x303F), // Mixed CJK, not just Hans 69 array('Hans', 0x3400, 0xFAFF), // Mixed CJK, not just Hans 70 array('Hans', 0x20000, 0x2FA1F), // Mixed CJK, not just Hans 71 ); 72 73 // Characters that are displayed in mirror form in RTL text. 74 private static $mirror_characters = array( 75 '(' => ')', 76 ')' => '(', 77 '[' => ']', 78 ']' => '[', 79 '{' => '}', 80 '}' => '{', 81 '<' => '>', 82 '>' => '<', 83 '‹' => '›', 84 '›' => '‹', 85 '«' => '»', 86 '»' => '«', 87 '﴾' => '﴿', 88 '﴿' => '﴾', 89 '“' => '”', 90 '”' => '“', 91 '‘' => '’', 92 '’' => '‘', 93 ); 94 95 /** @var string Punctuation used to separate list items, typically a comma */ 96 public static $list_separator; 97 98 /** 99 * Initialise the translation adapter with a locale setting. 100 * 101 * @param string|null $code Use this locale/language code, or choose one automatically 102 * 103 * @return string $string 104 */ 105 public static function init($code = null) { 106 global $WT_SESSION, $WT_TREE; 107 108 if ($code !== null) { 109 // Create the specified locale 110 self::$locale = Locale::create($code); 111 } else { 112 // Negotiate a locale, but if we can't then use a failsafe 113 self::$locale = new LocaleEnUs; 114 if (Filter::get('lang')) { 115 // A request in the URL 116 try { 117 $locale = Locale::create(Filter::get('lang')); 118 if (file_exists(WT_ROOT . 'language/' . $locale->languageTag() . '.mo')) { 119 self::$locale = $locale; 120 } 121 } catch (\Exception $ex) { 122 } 123 } elseif ($WT_SESSION->locale) { 124 // Previously used 125 self::$locale = Locale::create($WT_SESSION->locale); 126 } else { 127 // Browser negotiation 128 $default_locale = new LocaleEnUs; 129 try { 130 if ($WT_TREE) { 131 $default_locale = Locale::create($WT_TREE->getPreference('LANGUAGE')); 132 } 133 } catch (\Exception $ex) { 134 } 135 self::$locale = Locale::httpAcceptLanguage($_SESSION, self::installedLocales(), $default_locale); 136 } 137 } 138 139 File::mkdir(WT_DATA_DIR . 'cache'); 140 $cache_file = WT_DATA_DIR . 'cache/language-' . self::$locale->languageTag() . '-cache.php'; 141 if (file_exists($cache_file)) { 142 $filemtime = filemtime($cache_file); 143 } else { 144 $filemtime = 0; 145 } 146 147 // Load the translation file(s) 148 // Note that glob() returns false instead of an empty array when open_basedir_restriction 149 // is in force and no files are found. See PHP bug #47358. 150 $translation_files = array_merge( 151 array(WT_ROOT . 'language/' . self::$locale->languageTag() . '.mo'), 152 glob(WT_MODULES_DIR . '*/language/' . self::$locale->languageTag() . '.{csv,php,mo}', GLOB_BRACE) ?: array(), 153 glob(WT_DATA_DIR . 'language/' . self::$locale->languageTag() . '.{csv,php,mo}', GLOB_BRACE) ?: array() 154 ); 155 156 // Rebuild files after 2 hours 157 $rebuild_cache = time() > $filemtime + 7200; 158 // Rebuild files if any translation file has been updated 159 foreach ($translation_files as $translation_file) { 160 if (filemtime($translation_file) > $filemtime) { 161 $rebuild_cache = true; 162 break; 163 } 164 } 165 166 if ($rebuild_cache) { 167 $translations = array(); 168 foreach ($translation_files as $translation_file) { 169 $translation = new Translation($translation_file); 170 $translations = array_merge($translations, $translation->asArray()); 171 } 172 file_put_contents($cache_file, '<' . '?php return ' . var_export($translations, true) . ';'); 173 } else { 174 $translations = include $cache_file; 175 } 176 177 // Create a translator 178 self::$translator = new Translator($translations, self::$locale->pluralRule()); 179 180 // Extract language settings from the translation file 181 global $DATE_FORMAT; // I18N: This is the format string for full dates. See http://php.net/date for codes 182 $DATE_FORMAT = self::$translator->translate('%j %F %Y'); 183 184 global $TIME_FORMAT; // I18N: This is the format string for the time-of-day. See http://php.net/date for codes 185 $TIME_FORMAT = self::$translator->translate('%H:%i:%s'); 186 187 // Alphabetic sorting sequence (upper-case letters), used by webtrees to sort strings 188 list(, self::$alphabet_upper) = explode('=', self::$translator->translate('ALPHABET_upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ')); 189 // Alphabetic sorting sequence (lower-case letters), used by webtrees to sort strings 190 list(, self::$alphabet_lower) = explode('=', self::$translator->translate('ALPHABET_lower=abcdefghijklmnopqrstuvwxyz')); 191 192 global $WEEK_START; 193 $WEEK_START = self::$locale->territory()->firstDay(); 194 195 self::$list_separator = /* I18N: This punctuation is used to separate lists of items */ self::translate(', '); 196 197 return self::$locale->languageTag(); 198 } 199 200 /** 201 * The prefered locales for this site, or a default list if no preference. 202 * 203 * @return Locale[] 204 */ 205 public static function activeLocales() { 206 $code_list = Site::getPreference('LANGUAGES'); 207 208 if ($code_list) { 209 $codes = explode(',', $code_list); 210 } else { 211 $codes = array( 212 'ar', 'bg', 'bs', 'ca', 'cs', 'da', 'de', 'el', 'en-GB', 'en-US', 'es', 213 'et', 'fi', 'fr', 'he', 'hr', 'hu', 'is', 'it', 'ka', 'lt', 'mr', 'nb', 214 'nl', 'nn', 'pl', 'pt', 'ru', 'sk', 'sv', 'tr', 'uk', 'vi', 'zh-Hans', 215 ); 216 } 217 218 $locales = array(); 219 foreach ($codes as $code) { 220 if (file_exists(WT_ROOT . 'language/' . $code . '.mo')) { 221 try { 222 $locales[] = Locale::create($code); 223 } catch (\Exception $ex) { 224 // No such locale exists? 225 } 226 } 227 } 228 usort($locales, '\Fisharebest\Localization\Locale::compare'); 229 230 return $locales; 231 } 232 233 /** 234 * Which MySQL collation should be used for this locale? 235 * 236 * @return string 237 */ 238 public static function collation() { 239 $collation = self::$locale->collation(); 240 switch ($collation) { 241 case 'croatian_ci': 242 case 'german2_ci': 243 case 'vietnamese_ci': 244 // Only available in MySQL 5.6 245 return 'utf8_unicode_ci'; 246 default: 247 return 'utf8_' . $collation; 248 } 249 } 250 251 /** 252 * All locales for which a translation file exists. 253 * 254 * @return Locale[] 255 */ 256 public static function installedLocales() { 257 $locales = array(); 258 foreach (glob(WT_ROOT . 'language/*.mo') as $file) { 259 try { 260 $locales[] = Locale::create(basename($file, '.mo')); 261 } catch (\Exception $ex) { 262 // Not a recognised locale 263 } 264 } 265 usort($locales, '\Fisharebest\Localization\Locale::compare'); 266 267 return $locales; 268 } 269 270 /** 271 * Generate i18n markup for the <html> tag, e.g. lang="ar" dir="rtl" 272 * 273 * @return string 274 */ 275 public static function htmlAttributes() { 276 return self::$locale->htmlAttributes(); 277 } 278 279 /** 280 * Translate a number into the local representation. 281 * 282 * e.g. 12345.67 becomes 283 * en: 12,345.67 284 * fr: 12 345,67 285 * de: 12.345,67 286 * 287 * @param float $n 288 * @param integer $precision 289 * 290 * @return string 291 */ 292 public static function number($n, $precision = 0) { 293 return self::$locale->number(round($n, $precision)); 294 } 295 296 /** 297 * Convert the digits 0-9 into the local script 298 * 299 * Used for years, etc., where we do not want thousands-separators, decimals, etc. 300 * 301 * @param integer $n 302 * 303 * @return string 304 */ 305 public static function digits($n) { 306 return self::$locale->digits($n); 307 } 308 309 /** 310 * Translate a fraction into a percentage. 311 * 312 * e.g. 0.123 becomes 313 * en: 12.3% 314 * fr: 12,3 % 315 * de: 12,3% 316 * 317 * @param float $n 318 * @param integer $precision 319 * 320 * @return string 321 */ 322 public static function percentage($n, $precision = 0) { 323 return self::$locale->percent(round($n, $precision + 2)); 324 } 325 326 /** 327 * What is the direction of the current locale 328 * 329 * @return string "ltr" or "rtl" 330 */ 331 public static function direction() { 332 return self::$locale->direction(); 333 } 334 335 /** 336 * Translate a string, and then substitute placeholders 337 * 338 * echo I18N::translate('Hello World!'); 339 * echo I18N::translate('The %s sat on the mat', 'cat'); 340 * 341 * @return string 342 */ 343 public static function translate(/* var_args */) { 344 $args = func_get_args(); 345 $args[0] = self::$translator->translate($args[0]); 346 347 return call_user_func_array('sprintf', $args); 348 } 349 350 /** 351 * Context sensitive version of translate. 352 * 353 * echo I18N::translate_c('NOMINATIVE', 'January'); 354 * echo I18N::translate_c('GENITIVE', 'January'); 355 * 356 * @return string 357 */ 358 public static function translateContext(/* var_args */) { 359 $args = func_get_args(); 360 $args[0] = self::$translator->translateContext($args[0], $args[1]); 361 unset($args[1]); 362 363 return call_user_func_array('sprintf', $args); 364 } 365 366 /** 367 * Similar to translate, but do perform "no operation" on it. 368 * 369 * This is necessary to fetch a format string (containing % characters) without 370 * performing sustitution of arguments. 371 * 372 * @param string $string 373 * 374 * @return string 375 */ 376 public static function noop($string) { 377 return self::$translator->translate($string); 378 } 379 380 /** 381 * Translate a plural string 382 * 383 * echo self::plural('There is an error', 'There are errors', $num_errors); 384 * echo self::plural('There is one error', 'There are %s errors', $num_errors); 385 * echo self::plural('There is %1$s %2$s cat', 'There are %1$s %2$s cats', $num, $num, $colour); 386 * 387 * @return string 388 */ 389 public static function plural(/* var_args */) { 390 $args = func_get_args(); 391 $args[0] = self::$translator->translatePlural($args[0], $args[1], $args[2]); 392 unset($args[1], $args[2]); 393 394 return call_user_func_array('sprintf', $args); 395 } 396 397 /** 398 * Convert a GEDCOM age string into translated_text 399 * 400 * NB: The import function will have normalised this, so we don't need 401 * to worry about badly formatted strings 402 * NOTE: this function is not yet complete - eventually it will replace get_age_at_event() 403 * 404 * @param $string 405 * 406 * @return string 407 */ 408 public static function gedcomAge($string) { 409 switch ($string) { 410 case 'STILLBORN': 411 // I18N: Description of an individual’s age at an event. For example, Died 14 Jan 1900 (stillborn) 412 return self::translate('(stillborn)'); 413 case 'INFANT': 414 // I18N: Description of an individual’s age at an event. For example, Died 14 Jan 1900 (in infancy) 415 return self::translate('(in infancy)'); 416 case 'CHILD': 417 // I18N: Description of an individual’s age at an event. For example, Died 14 Jan 1900 (in childhood) 418 return self::translate('(in childhood)'); 419 } 420 $age = array(); 421 if (preg_match('/(\d+)y/', $string, $match)) { 422 // I18N: Part of an age string. e.g. 5 years, 4 months and 3 days 423 $years = $match[1]; 424 $age[] = self::plural('%s year', '%s years', $years, self::number($years)); 425 } else { 426 $years = -1; 427 } 428 if (preg_match('/(\d+)m/', $string, $match)) { 429 // I18N: Part of an age string. e.g. 5 years, 4 months and 3 days 430 $age[] = self::plural('%s month', '%s months', $match[1], self::number($match[1])); 431 } 432 if (preg_match('/(\d+)w/', $string, $match)) { 433 // I18N: Part of an age string. e.g. 7 weeks and 3 days 434 $age[] = self::plural('%s week', '%s weeks', $match[1], self::number($match[1])); 435 } 436 if (preg_match('/(\d+)d/', $string, $match)) { 437 // I18N: Part of an age string. e.g. 5 years, 4 months and 3 days 438 $age[] = self::plural('%s day', '%s days', $match[1], self::number($match[1])); 439 } 440 // If an age is just a number of years, only show the number 441 if (count($age) === 1 && $years >= 0) { 442 $age = $years; 443 } 444 if ($age) { 445 if (!substr_compare($string, '<', 0, 1)) { 446 // I18N: Description of an individual’s age at an event. For example, Died 14 Jan 1900 (aged less than 21 years) 447 return self::translate('(aged less than %s)', $age); 448 } elseif (!substr_compare($string, '>', 0, 1)) { 449 // I18N: Description of an individual’s age at an event. For example, Died 14 Jan 1900 (aged more than 21 years) 450 return self::translate('(aged more than %s)', $age); 451 } else { 452 // I18N: Description of an individual’s age at an event. For example, Died 14 Jan 1900 (aged 43 years) 453 return self::translate('(aged %s)', $age); 454 } 455 } else { 456 // Not a valid string? 457 return self::translate('(aged %s)', $string); 458 } 459 } 460 461 /** 462 * Convert a number of seconds into a relative time. For example, 630 => "10 hours, 30 minutes ago" 463 * 464 * @param integer $seconds 465 * 466 * @return string 467 */ 468 public static function timeAgo($seconds) { 469 $minute = 60; 470 $hour = 60 * $minute; 471 $day = 24 * $hour; 472 $month = 30 * $day; 473 $year = 365 * $day; 474 475 if ($seconds > $year) { 476 $years = (int) ($seconds / $year); 477 return self::plural('%s year ago', '%s years ago', $years, self::number($years)); 478 } elseif ($seconds > $month) { 479 $months = (int) ($seconds / $month); 480 return self::plural('%s month ago', '%s months ago', $months, self::number($months)); 481 } elseif ($seconds > $day) { 482 $days = (int) ($seconds / $day); 483 return self::plural('%s day ago', '%s days ago', $days, self::number($days)); 484 } elseif ($seconds > $hour) { 485 $hours = (int) ($seconds / $hour); 486 return self::plural('%s hour ago', '%s hours ago', $hours, self::number($hours)); 487 } elseif ($seconds > $minute) { 488 $minutes = (int) ($seconds / $minute); 489 return self::plural('%s minute ago', '%s minutes ago', $minutes, self::number($minutes)); 490 } else { 491 return self::plural('%s second ago', '%s seconds ago', $seconds, self::number($seconds)); 492 } 493 } 494 495 /** 496 * Return the endonym for a given language - as per http://cldr.unicode.org/ 497 * 498 * @param string $locale 499 * 500 * @return string 501 */ 502 public static function languageName($locale) { 503 return Locale::create($locale)->endonym(); 504 } 505 506 /** 507 * Return the script used by a given language 508 * 509 * @param string $locale 510 * 511 * @return string 512 */ 513 public static function languageScript($locale) { 514 return Locale::create($locale)->script()->code(); 515 } 516 517 /** 518 * Identify the script used for a piece of text 519 * 520 * @param $string 521 * 522 * @return string 523 */ 524 public static function textScript($string) { 525 $string = strip_tags($string); // otherwise HTML tags show up as latin 526 $string = html_entity_decode($string, ENT_QUOTES, 'UTF-8'); // otherwise HTML entities show up as latin 527 $string = str_replace(array('@N.N.', '@P.N.'), '', $string); // otherwise unknown names show up as latin 528 $pos = 0; 529 $strlen = strlen($string); 530 while ($pos < $strlen) { 531 // get the Unicode Code Point for the character at position $pos 532 $byte1 = ord($string[$pos]); 533 if ($byte1 < 0x80) { 534 $code_point = $byte1; 535 $chrlen = 1; 536 } elseif ($byte1 < 0xC0) { 537 // Invalid continuation character 538 return 'Latn'; 539 } elseif ($byte1 < 0xE0) { 540 $code_point = (($byte1 & 0x1F) << 6) + (ord($string[$pos + 1]) & 0x3F); 541 $chrlen = 2; 542 } elseif ($byte1 < 0xF0) { 543 $code_point = (($byte1 & 0x0F) << 12) + ((ord($string[$pos + 1]) & 0x3F) << 6) + (ord($string[$pos + 2]) & 0x3F); 544 $chrlen = 3; 545 } elseif ($byte1 < 0xF8) { 546 $code_point = (($byte1 & 0x07) << 24) + ((ord($string[$pos + 1]) & 0x3F) << 12) + ((ord($string[$pos + 2]) & 0x3F) << 6) + (ord($string[$pos + 3]) & 0x3F); 547 $chrlen = 3; 548 } else { 549 // Invalid UTF 550 return 'Latn'; 551 } 552 553 foreach (self::$scripts as $range) { 554 if ($code_point >= $range[1] && $code_point <= $range[2]) { 555 return $range[0]; 556 } 557 } 558 // Not a recognised script. Maybe punctuation, spacing, etc. Keep looking. 559 $pos += $chrlen; 560 } 561 562 return 'Latn'; 563 } 564 565 /** 566 * Return the direction (ltr or rtl) for a given script 567 * 568 * The PHP/intl library does not provde this information, so we need 569 * our own lookup table. 570 * 571 * @param string $script 572 * 573 * @return string 574 */ 575 public static function scriptDirection($script) { 576 switch ($script) { 577 case 'Arab': 578 case 'Hebr': 579 case 'Mong': 580 case 'Thaa': 581 return 'rtl'; 582 default: 583 return 'ltr'; 584 } 585 } 586 587 /** 588 * UTF8 version of PHP::strtoupper() 589 * 590 * Convert a string to upper case, using the rules from the current locale 591 * 592 * @param string $string 593 * 594 * @return string 595 */ 596 public static function strtoupper($string) { 597 if (self::$locale->language()->code() === 'tr' || self::$locale->language()->code() === 'az') { 598 return TurkishUtf8::strtoupper($string); 599 } else { 600 return mb_strtoupper($string); 601 } 602 } 603 604 /** 605 * UTF8 version of PHP::strtolower() 606 * 607 * Convert a string to lower case, using the rules from the current locale 608 * 609 * @param string $string 610 * 611 * @return string 612 */ 613 public static function strtolower($string) { 614 if (self::$locale->language()->code() === 'tr' || self::$locale->language()->code() === 'az') { 615 return TurkishUtf8::strtolower($string); 616 } else { 617 return mb_strtolower($string); 618 } 619 } 620 621 /** 622 * UTF8 version of PHP::strcasecmp() 623 * 624 * Perform a case-insensitive comparison of two strings, using rules from the current locale 625 * 626 * @param string $string1 627 * @param string $string2 628 * 629 * @return integer 630 */ 631 public static function strcasecmp($string1, $string2) { 632 $strpos1 = 0; 633 $strpos2 = 0; 634 $strlen1 = strlen($string1); 635 $strlen2 = strlen($string2); 636 while ($strpos1 < $strlen1 && $strpos2 < $strlen2) { 637 $byte1 = ord($string1[$strpos1]); 638 $byte2 = ord($string2[$strpos2]); 639 if (($byte1 & 0xE0) === 0xC0) { 640 $chr1 = $string1[$strpos1++] . $string1[$strpos1++]; 641 } elseif (($byte1 & 0xF0) === 0xE0) { 642 $chr1 = $string1[$strpos1++] . $string1[$strpos1++] . $string1[$strpos1++]; 643 } else { 644 $chr1 = $string1[$strpos1++]; 645 } 646 if (($byte2 & 0xE0) === 0xC0) { 647 $chr2 = $string2[$strpos2++] . $string2[$strpos2++]; 648 } elseif (($byte2 & 0xF0) === 0xE0) { 649 $chr2 = $string2[$strpos2++] . $string2[$strpos2++] . $string2[$strpos2++]; 650 } else { 651 $chr2 = $string2[$strpos2++]; 652 } 653 if ($chr1 === $chr2) { 654 continue; 655 } 656 // Try the local alphabet first 657 $offset1 = strpos(self::$alphabet_lower, $chr1); 658 if ($offset1 === false) { 659 $offset1 = strpos(self::$alphabet_upper, $chr1); 660 } 661 $offset2 = strpos(self::$alphabet_lower, $chr2); 662 if ($offset2 === false) { 663 $offset2 = strpos(self::$alphabet_upper, $chr2); 664 } 665 if ($offset1 !== false && $offset2 !== false) { 666 if ($offset1 === $offset2) { 667 continue; 668 } else { 669 return $offset1 - $offset2; 670 } 671 } 672 // Try the global alphabet next 673 $offset1 = strpos(self::ALPHABET_LOWER, $chr1); 674 if ($offset1 === false) { 675 $offset1 = strpos(self::ALPHABET_UPPER, $chr1); 676 } 677 $offset2 = strpos(self::ALPHABET_LOWER, $chr2); 678 if ($offset2 === false) { 679 $offset2 = strpos(self::ALPHABET_UPPER, $chr2); 680 } 681 if ($offset1 !== false && $offset2 !== false) { 682 if ($offset1 === $offset2) { 683 continue; 684 } else { 685 return $offset1 - $offset2; 686 } 687 } 688 // Just compare by unicode order 689 return strcmp($chr1, $chr2); 690 } 691 // Shortest string comes first. 692 return ($strlen1 - $strpos1) - ($strlen2 - $strpos2); 693 } 694 695 /** 696 * UTF8 version of PHP::strrev() 697 * 698 * Reverse RTL text for third-party libraries such as GD2 and googlechart. 699 * 700 * These do not support UTF8 text direction, so we must mimic it for them. 701 * 702 * Numbers are always rendered LTR, even in RTL text. 703 * The visual direction of characters such as parentheses should be reversed. 704 * 705 * @param string $text Text to be reversed 706 * 707 * @return string 708 */ 709 public static function reverseText($text) { 710 // Remove HTML markup - we can't display it and it is LTR. 711 $text = Filter::unescapeHtml($text); 712 713 // LTR text doesn't need reversing 714 if (self::scriptDirection(self::textScript($text)) === 'ltr') { 715 return $text; 716 } 717 718 // Mirrored characters 719 $text = strtr($text, self::$mirror_characters); 720 721 $reversed = ''; 722 $digits = ''; 723 while ($text != '') { 724 $letter = mb_substr($text, 0, 1); 725 $text = mb_substr($text, 1); 726 if (strpos(self::DIGITS, $letter) !== false) { 727 $digits .= $letter; 728 } else { 729 $reversed = $letter . $digits . $reversed; 730 $digits = ''; 731 } 732 } 733 734 return $digits . $reversed; 735 } 736 737 /** 738 * Generate consistent I18N for datatables.js 739 * 740 * @param array|null $lengths An optional array of page lengths 741 * 742 * @return string 743 */ 744 public static function datatablesI18N(array $lengths = null) { 745 if ($lengths === null) { 746 $lengths = array(10, 20, 30, 50, 100, -1); 747 } 748 749 $length_menu = ''; 750 foreach ($lengths as $length) { 751 $length_menu .= 752 '<option value="' . $length . '">' . 753 ($length === -1 ? /* I18N: listbox option, e.g. “10,25,50,100,all” */ self::translate('All') : self::number($length)) . 754 '</option>'; 755 } 756 $length_menu = '<select>' . $length_menu . '</select>'; 757 $length_menu = /* I18N: Display %s [records per page], %s is a placeholder for listbox containing numeric options */ self::translate('Display %s', $length_menu); 758 759 $digits = self::$locale->digits('0123456789'); 760 if ($digits === '0123456789') { 761 $callback = ''; 762 } else { 763 $callback = ', 764 "infoCallback": function(oSettings, iStart, iEnd, iMax, iTotal, sPre) { 765 return sPre 766 .replace(/0/g, "' . mb_substr($digits, 0, 1) . '") 767 .replace(/1/g, "' . mb_substr($digits, 1, 1) . '") 768 .replace(/2/g, "' . mb_substr($digits, 2, 1) . '") 769 .replace(/3/g, "' . mb_substr($digits, 3, 1) . '") 770 .replace(/4/g, "' . mb_substr($digits, 4, 1) . '") 771 .replace(/5/g, "' . mb_substr($digits, 5, 1) . '") 772 .replace(/6/g, "' . mb_substr($digits, 6, 1) . '") 773 .replace(/7/g, "' . mb_substr($digits, 7, 1) . '") 774 .replace(/8/g, "' . mb_substr($digits, 8, 1) . '") 775 .replace(/9/g, "' . mb_substr($digits, 9, 1) . '"); 776 }, 777 "formatNumber": function(iIn) { 778 return String(iIn) 779 .replace(/0/g, "' . mb_substr($digits, 0, 1) . '") 780 .replace(/1/g, "' . mb_substr($digits, 1, 1) . '") 781 .replace(/2/g, "' . mb_substr($digits, 2, 1) . '") 782 .replace(/3/g, "' . mb_substr($digits, 3, 1) . '") 783 .replace(/4/g, "' . mb_substr($digits, 4, 1) . '") 784 .replace(/5/g, "' . mb_substr($digits, 5, 1) . '") 785 .replace(/6/g, "' . mb_substr($digits, 6, 1) . '") 786 .replace(/7/g, "' . mb_substr($digits, 7, 1) . '") 787 .replace(/8/g, "' . mb_substr($digits, 8, 1) . '") 788 .replace(/9/g, "' . mb_substr($digits, 9, 1) . '"); 789 } 790 '; 791 } 792 793 return 794 '"language": {' . 795 ' "paginate": {' . 796 ' "first": "' . /* I18N: button label, first page */ self::translate('first') . '",' . 797 ' "last": "' . /* I18N: button label, last page */ self::translate('last') . '",' . 798 ' "next": "' . /* I18N: button label, next page */ self::translate('next') . '",' . 799 ' "previous": "' . /* I18N: button label, previous page */ self::translate('previous') . '"' . 800 ' },' . 801 ' "emptyTable": "' . self::translate('No records to display') . '",' . 802 ' "info": "' . /* I18N: %s are placeholders for numbers */ self::translate('Showing %1$s to %2$s of %3$s', '_START_', '_END_', '_TOTAL_') . '",' . 803 ' "infoEmpty": "' . self::translate('Showing %1$s to %2$s of %3$s', 0, 0, 0) . '",' . 804 ' "infoFiltered": "' . /* I18N: %s is a placeholder for a number */ self::translate('(filtered from %s total entries)', '_MAX_') . '",' . 805 ' "infoPostfix": "",' . 806 ' "lengthMenu": "' . Filter::escapeJs($length_menu) . '",' . 807 ' "loadingRecords": "' . self::translate('Loading…') . '",' . 808 ' "processing": "' . self::translate('Loading…') . '",' . 809 ' "search": "' . self::translate('Filter') . '",' . 810 ' "url": "",' . 811 ' "zeroRecords": "' . self::translate('No records to display') . '"' . 812 '}' . 813 $callback; 814 } 815} 816