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= function strtotime (text, now) {\n // discuss at: http://locutus.io/php/strtotime/\n // original by: Caio Ariede (http://caioariede.com)\n // improved by: Kevin van Zonneveld (http://kvz.io)\n // improved by: Caio Ariede (http://caioariede.com)\n // improved by: A. Matías Quezada (http://amatiasq.com)\n // improved by: preuter\n // improved by: Brett Zamir (http://brett-zamir.me)\n // improved by: Mirko Faber\n // input by: David\n // bugfixed by: Wagner B. Soares\n // bugfixed by: Artur Tchernychev\n // bugfixed by: Stephan Bösch-Plepelits (http://github.com/plepe)\n // note 1: Examples all have a fixed timestamp to prevent\n // note 1: tests to fail because of variable time(zones)\n // example 1: strtotime('+1 day', 1129633200)\n // returns 1: 1129719600\n // example 2: strtotime('+1 week 2 days 4 hours 2 seconds', 1129633200)\n // returns 2: 1130425202\n // example 3: strtotime('last month', 1129633200)\n // returns 3: 1127041200\n // example 4: strtotime('2009-05-04 08:30:00 GMT')\n // returns 4: 1241425800\n // example 5: strtotime('2009-05-04 08:30:00+00')\n // returns 5: 1241425800\n // example 6: strtotime('2009-05-04 08:30:00+02:00')\n // returns 6: 1241418600\n // example 7: strtotime('2009-05-04T08:30:00Z')\n // returns 7: 1241425800\n\n var parsed\n var match\n var today\n var year\n var date\n var days\n var ranges\n var len\n var times\n var regex\n var i\n var fail = false\n\n if (!text) {\n return fail\n }\n\n // Unecessary spaces\n text = text.replace(/^\\s+|\\s+$/g, '')\n .replace(/\\s{2,}/g, ' ')\n .replace(/[\\t\\r\\n]/g, '')\n .toLowerCase()\n\n // in contrast to php, js Date.parse function interprets:\n // dates given as yyyy-mm-dd as in timezone: UTC,\n // dates with \".\" or \"-\" as MDY instead of DMY\n // dates with two-digit years differently\n // etc...etc...\n // ...therefore we manually parse lots of common date formats\n var pattern = new RegExp([\n '^(\\\\d{1,4})',\n '([\\\\-\\\\.\\\\/:])',\n '(\\\\d{1,2})',\n '([\\\\-\\\\.\\\\/:])',\n '(\\\\d{1,4})',\n '(?:\\\\s(\\\\d{1,2}):(\\\\d{2})?:?(\\\\d{2})?)?',\n '(?:\\\\s([A-Z]+)?)?$'\n ].join(''))\n match = text.match(pattern)\n\n if (match && match[2] === match[4]) {\n if (match[1] > 1901) {\n switch (match[2]) {\n case '-':\n // YYYY-M-D\n if (match[3] > 12 || match[5] > 31) {\n return fail\n }\n\n return new Date(match[1], parseInt(match[3], 10) - 1, match[5],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n case '.':\n // YYYY.M.D is not parsed by strtotime()\n return fail\n case '/':\n // YYYY/M/D\n if (match[3] > 12 || match[5] > 31) {\n return fail\n }\n\n return new Date(match[1], parseInt(match[3], 10) - 1, match[5],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n }\n } else if (match[5] > 1901) {\n switch (match[2]) {\n case '-':\n // D-M-YYYY\n if (match[3] > 12 || match[1] > 31) {\n return fail\n }\n\n return new Date(match[5], parseInt(match[3], 10) - 1, match[1],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n case '.':\n // D.M.YYYY\n if (match[3] > 12 || match[1] > 31) {\n return fail\n }\n\n return new Date(match[5], parseInt(match[3], 10) - 1, match[1],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n case '/':\n // M/D/YYYY\n if (match[1] > 12 || match[3] > 31) {\n return fail\n }\n\n return new Date(match[5], parseInt(match[1], 10) - 1, match[3],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n }\n } else {\n switch (match[2]) {\n case '-':\n // YY-M-D\n if (match[3] > 12 || match[5] > 31 || (match[1] < 70 && match[1] > 38)) {\n return fail\n }\n\n year = match[1] >= 0 && match[1] <= 38 ? +match[1] + 2000 : match[1]\n return new Date(year, parseInt(match[3], 10) - 1, match[5],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n case '.':\n // D.M.YY or H.MM.SS\n if (match[5] >= 70) {\n // D.M.YY\n if (match[3] > 12 || match[1] > 31) {\n return fail\n }\n\n return new Date(match[5], parseInt(match[3], 10) - 1, match[1],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n }\n if (match[5] < 60 && !match[6]) {\n // H.MM.SS\n if (match[1] > 23 || match[3] > 59) {\n return fail\n }\n\n today = new Date()\n return new Date(today.getFullYear(), today.getMonth(), today.getDate(),\n match[1] || 0, match[3] || 0, match[5] || 0, match[9] || 0) / 1000\n }\n\n // invalid format, cannot be parsed\n return fail\n case '/':\n // M/D/YY\n if (match[1] > 12 || match[3] > 31 || (match[5] < 70 && match[5] > 38)) {\n return fail\n }\n\n year = match[5] >= 0 && match[5] <= 38 ? +match[5] + 2000 : match[5]\n return new Date(year, parseInt(match[1], 10) - 1, match[3],\n match[6] || 0, match[7] || 0, match[8] || 0, match[9] || 0) / 1000\n case ':':\n // HH:MM:SS\n if (match[1] > 23 || match[3] > 59 || match[5] > 59) {\n return fail\n }\n\n today = new Date()\n return new Date(today.getFullYear(), today.getMonth(), today.getDate(),\n match[1] || 0, match[3] || 0, match[5] || 0) / 1000\n }\n }\n }\n\n // other formats and \"now\" should be parsed by Date.parse()\n if (text === 'now') {\n return now === null || isNaN(now)\n ? new Date().getTime() / 1000 | 0\n : now | 0\n }\n if (!isNaN(parsed = Date.parse(text))) {\n return parsed / 1000 | 0\n }\n // Browsers !== Chrome have problems parsing ISO 8601 date strings, as they do\n // not accept lower case characters, space, or shortened time zones.\n // Therefore, fix these problems and try again.\n // Examples:\n // 2015-04-15 20:33:59+02\n // 2015-04-15 20:33:59z\n // 2015-04-15t20:33:59+02:00\n pattern = new RegExp([\n '^([0-9]{4}-[0-9]{2}-[0-9]{2})',\n '[ t]',\n '([0-9]{2}:[0-9]{2}:[0-9]{2}(\\\\.[0-9]+)?)',\n '([\\\\+-][0-9]{2}(:[0-9]{2})?|z)'\n ].join(''))\n match = text.match(pattern)\n if (match) {\n // @todo: time zone information\n if (match[4] === 'z') {\n match[4] = 'Z'\n } else if (match[4].match(/^([+-][0-9]{2})$/)) {\n match[4] = match[4] + ':00'\n }\n\n if (!isNaN(parsed = Date.parse(match[1] + 'T' + match[2] + match[4]))) {\n return parsed / 1000 | 0\n }\n }\n\n date = now ? new Date(now * 1000) : new Date()\n days = {\n 'sun': 0,\n 'mon': 1,\n 'tue': 2,\n 'wed': 3,\n 'thu': 4,\n 'fri': 5,\n 'sat': 6\n }\n ranges = {\n 'yea': 'FullYear',\n 'mon': 'Month',\n 'day': 'Date',\n 'hou': 'Hours',\n 'min': 'Minutes',\n 'sec': 'Seconds'\n }\n\n function lastNext (type, range, modifier) {\n var diff\n var day = days[range]\n\n if (typeof day !== 'undefined') {\n diff = day - date.getDay()\n\n if (diff === 0) {\n diff = 7 * modifier\n } else if (diff > 0 && type === 'last') {\n diff -= 7\n } else if (diff < 0 && type === 'next') {\n diff += 7\n }\n\n date.setDate(date.getDate() + diff)\n }\n }\n\n function process (val) {\n // @todo: Reconcile this with regex using \\s, taking into account\n // browser issues with split and regexes\n var splt = val.split(' ')\n var type = splt[0]\n var range = splt[1].substring(0, 3)\n var typeIsNumber = /\\d+/.test(type)\n var ago = splt[2] === 'ago'\n var num = (type === 'last' ? -1 : 1) * (ago ? -1 : 1)\n\n if (typeIsNumber) {\n num *= parseInt(type, 10)\n }\n\n if (ranges.hasOwnProperty(range) && !splt[1].match(/^mon(day|\\.)?$/i)) {\n return date['set' + ranges[range]](date['get' + ranges[range]]() + num)\n }\n\n if (range === 'wee') {\n return date.setDate(date.getDate() + (num * 7))\n }\n\n if (type === 'next' || type === 'last') {\n lastNext(type, range, num)\n } else if (!typeIsNumber) {\n return false\n }\n\n return true\n }\n\n times = '(years?|months?|weeks?|days?|hours?|minutes?|min|seconds?|sec' +\n '|sunday|sun\\\\.?|monday|mon\\\\.?|tuesday|tue\\\\.?|wednesday|wed\\\\.?' +\n '|thursday|thu\\\\.?|friday|fri\\\\.?|saturday|sat\\\\.?)'\n regex = '([+-]?\\\\d+\\\\s' + times + '|' + '(last|next)\\\\s' + times + ')(\\\\sago)?'\n\n match = text.match(new RegExp(regex, 'gi'))\n if (!match) {\n return fail\n }\n\n for (i = 0, len = match.length; i < len; i++) {\n if (!process(match[i])) {\n return fail\n }\n }\n\n return (date.getTime() / 1000)\n}\n"]}
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