ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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UNICODE_SET : DOT_SET_UNICODE; }; const getUnicodePropertyValueSet = (property, value) => { const path = value ? `${ property }/${ value }` : `Binary_Property/${ property }`; try { return require(`regenerate-unicode-properties/${ path }.js`); } catch (exception) { throw new Error( `Failed to recognize value \`${ value }\` for property ` + `\`${ property }\`.` ); } }; const handleLoneUnicodePropertyNameOrValue = (value) => { // It could be a `General_Category` value or a binary property. // Note: `unicodeMatchPropertyValue` throws on invalid values. try { const property = 'General_Category'; const category = unicodeMatchPropertyValue(property, value); return getUnicodePropertyValueSet(property, category); } catch (exception) {} // It’s not a `General_Category` value, so check if it’s a binary // property. Note: `unicodeMatchProperty` throws on invalid properties. const property = unicodeMatchProperty(value); return getUnicodePropertyValueSet(property); }; const getUnicodePropertyEscapeSet = (value, isNegative) => { const parts = value.split('='); const firstPart = parts[0]; let set; if (parts.length == 1) { set = handleLoneUnicodePropertyNameOrValue(firstPart); } else { // The pattern consists of two parts, i.e. `Property=Value`. const property = unicodeMatchProperty(firstPart); const value = unicodeMatchPropertyValue(property, parts[1]); set = getUnicodePropertyValueSet(property, value); } if (isNegative) { return UNICODE_SET.clone().remove(set); } return set.clone(); }; // Given a range of code points, add any case-folded code points in that range // to a set. regenerate.prototype.iuAddRange = function(min, max) { const $this = this; do { const folded = caseFold(min); if (folded) { $this.add(folded); } } while (++min <= max); return $this; }; const update = (item, pattern) => { let tree = parse(pattern, config.useUnicodeFlag ? 'u' : ''); switch (tree.type) { case 'characterClass': case 'group': case 'value': // No wrapping needed. break; default: // Wrap the pattern in a non-capturing group. tree = wrap(tree, pattern); } Object.assign(item, tree); }; const wrap = (tree, pattern) => { // Wrap the pattern in a non-capturing group. return { 'type': 'group', 'behavior': 'ignore', 'body': [tree], 'raw': `(?:${ pattern })` }; }; const caseFold = (codePoint) => { return iuMappings.get(codePoint) || false; }; const processCharacterClass = (characterClassItem, regenerateOptions) => { let set = regenerate(); for (const item of characterClassItem.body) { switch (item.type) { case 'value': set.add(item.codePoint); if (config.ignoreCase && config.unicode && !config.useUnicodeFlag) { const folded = caseFold(item.codePoint); if (folded) { set.add(folded); } } break; case 'characterClassRange': const min = item.min.codePoint; const max = item.max.codePoint; set.addRange(min, max); if (config.ignoreCase && config.unicode && !config.useUnicodeFlag) { set.iuAddRange(min, max); } break; case 'characterClassEscape': set.add(getCharacterClassEscapeSet( item.value, config.unicode, config.ignoreCase )); break; case 'unicodePropertyEscape': set.add(getUnicodePropertyEscapeSet(item.value, item.negative)); break; // The `default` clause is only here as a safeguard; it should never be // reached. Code coverage tools should ignore it. /* istanbul ignore next */ default: throw new Error(`Unknown term type: ${ item.type }`); } } if (characterClassItem.negative) { set = (config.unicode ? UNICODE_SET : BMP_SET).clone().remove(set); } update(characterClassItem, set.toString(regenerateOptions)); return characterClassItem; }; const updateNamedReference = (item, index) => { delete item.name; item.matchIndex = index; }; const assertNoUnmatchedReferences = (groups) => { const unmatchedReferencesNames = Object.keys(groups.unmatchedReferences); if (unmatchedReferencesNames.length > 0) { throw new Error(`Unknown group names: ${unmatchedReferencesNames}`); } }; const processTerm = (item, regenerateOptions, groups) => { switch (item.type) { case 'dot': if (config.unicode) { update( item, getUnicodeDotSet(config.dotAll).toString(regenerateOptions) ); } else if (config.dotAll) { // TODO: consider changing this at the regenerate level. update(item, '[\\s\\S]'); } break; case 'characterClass': item = processCharacterClass(item, regenerateOptions); break; case 'unicodePropertyEscape': if (config.unicodePropertyEscape) { update( item, getUnicodePropertyEscapeSet(item.value, item.negative) .toString(regenerateOptions) ); } break; case 'characterClassEscape': update( item, getCharacterClassEscapeSet( item.value, config.unicode, config.ignoreCase ).toString(regenerateOptions) ); break; case 'group': if (item.behavior == 'normal') { groups.lastIndex++; } if (item.name && config.namedGroup) { const name = item.name.value; if (groups.names[name]) { throw new Error( `Multiple groups with the same name (${ name }) are not allowed.` ); } const index = groups.lastIndex; delete item.name; groups.names[name] = index; if (groups.onNamedGroup) { groups.onNamedGroup.call(null, name, index); } if (groups.unmatchedReferences[name]) { groups.unmatchedReferences[name].forEach(reference => { updateNamedReference(reference, index); }); delete groups.unmatchedReferences[name]; } } /* falls through */ case 'alternative': case 'disjunction': case 'quantifier': item.body = item.body.map(term => { return processTerm(term, regenerateOptions, groups); }); break; case 'value': const codePoint = item.codePoint; const set = regenerate(codePoint); if (config.ignoreCase && config.unicode && !config.useUnicodeFlag) { const folded = caseFold(codePoint); if (folded) { set.add(folded); } } update(item, set.toString(regenerateOptions)); break; case 'reference': if (item.name) { const name = item.name.value; const index = groups.names[name]; if (index) { updateNamedReference(item, index); break; } if (!groups.unmatchedReferences[name]) { groups.unmatchedReferences[name] = []; } // Keep track of references used before the corresponding group. groups.unmatchedReferences[name].push(item); } break; case 'anchor': case 'empty': case 'group': // Nothing to do here. break; // The `default` clause is only here as a safeguard; it should never be // reached. Code coverage tools should ignore it. /* istanbul ignore next */ default: throw new Error(`Unknown term type: ${ item.type }`); } return item; }; const config = { 'ignoreCase': false, 'unicode': false, 'dotAll': false, 'useUnicodeFlag': false, 'unicodePropertyEscape': false, 'namedGroup': false }; const rewritePattern = (pattern, flags, options) => { config.unicode = flags && flags.includes('u'); const regjsparserFeatures = { 'unicodePropertyEscape': config.unicode, 'namedGroups': true, 'lookbehind': options && options.lookbehind }; config.ignoreCase = flags && flags.includes('i'); const supportDotAllFlag = options && options.dotAllFlag; config.dotAll = supportDotAllFlag && flags && flags.includes('s'); config.namedGroup = options && options.namedGroup; config.useUnicodeFlag = options && options.useUnicodeFlag; config.unicodePropertyEscape = options && options.unicodePropertyEscape; const regenerateOptions = { 'hasUnicodeFlag': config.useUnicodeFlag, 'bmpOnly': !config.unicode }; const groups = { 'onNamedGroup': options && options.onNamedGroup, 'lastIndex': 0, 'names': Object.create(null), // { [name]: index } 'unmatchedReferences': Object.create(null) // { [name]: Array } }; const tree = parse(pattern, flags, regjsparserFeatures); // Note: `processTerm` mutates `tree` and `groups`. processTerm(tree, regenerateOptions, groups); assertNoUnmatchedReferences(groups); return generate(tree); }; module.exports = rewritePattern;