chrono-node
Version:
A natural language date parser in Javascript
168 lines • 4.67 kB
JavaScript
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseTimeUnits = exports.TIME_UNITS_PATTERN = exports.parseYear = exports.YEAR_PATTERN = exports.parseOrdinalNumberPattern = exports.ORDINAL_NUMBER_PATTERN = exports.parseNumberPattern = exports.NUMBER_PATTERN = exports.TIME_UNIT_DICTIONARY = exports.INTEGER_WORD_DICTIONARY = exports.MONTH_DICTIONARY = exports.WEEKDAY_DICTIONARY = void 0;
const pattern_1 = require("../../utils/pattern");
exports.WEEKDAY_DICTIONARY = {
"dimanche": 0,
"dim": 0,
"lundi": 1,
"lun": 1,
"mardi": 2,
"mar": 2,
"mercredi": 3,
"mer": 3,
"jeudi": 4,
"jeu": 4,
"vendredi": 5,
"ven": 5,
"samedi": 6,
"sam": 6,
};
exports.MONTH_DICTIONARY = {
"janvier": 1,
"jan": 1,
"jan.": 1,
"février": 2,
"fév": 2,
"fév.": 2,
"fevrier": 2,
"fev": 2,
"fev.": 2,
"mars": 3,
"mar": 3,
"mar.": 3,
"avril": 4,
"avr": 4,
"avr.": 4,
"mai": 5,
"juin": 6,
"jun": 6,
"juillet": 7,
"juil": 7,
"jul": 7,
"jul.": 7,
"août": 8,
"aout": 8,
"septembre": 9,
"sep": 9,
"sep.": 9,
"sept": 9,
"sept.": 9,
"octobre": 10,
"oct": 10,
"oct.": 10,
"novembre": 11,
"nov": 11,
"nov.": 11,
"décembre": 12,
"decembre": 12,
"dec": 12,
"dec.": 12,
};
exports.INTEGER_WORD_DICTIONARY = {
"un": 1,
"deux": 2,
"trois": 3,
"quatre": 4,
"cinq": 5,
"six": 6,
"sept": 7,
"huit": 8,
"neuf": 9,
"dix": 10,
"onze": 11,
"douze": 12,
"treize": 13,
};
exports.TIME_UNIT_DICTIONARY = {
"sec": "second",
"seconde": "second",
"secondes": "second",
"min": "minute",
"mins": "minute",
"minute": "minute",
"minutes": "minute",
"h": "hour",
"hr": "hour",
"hrs": "hour",
"heure": "hour",
"heures": "hour",
"jour": "d",
"jours": "d",
"semaine": "week",
"semaines": "week",
"mois": "month",
"trimestre": "quarter",
"trimestres": "quarter",
"ans": "year",
"année": "year",
"années": "year",
};
exports.NUMBER_PATTERN = `(?:${pattern_1.matchAnyPattern(exports.INTEGER_WORD_DICTIONARY)}|[0-9]+|[0-9]+\\.[0-9]+|une?\\b|quelques?|demi-?)`;
function parseNumberPattern(match) {
const num = match.toLowerCase();
if (exports.INTEGER_WORD_DICTIONARY[num] !== undefined) {
return exports.INTEGER_WORD_DICTIONARY[num];
}
else if (num === "une" || num === "un") {
return 1;
}
else if (num.match(/quelques?/)) {
return 3;
}
else if (num.match(/demi-?/)) {
return 0.5;
}
return parseFloat(num);
}
exports.parseNumberPattern = parseNumberPattern;
exports.ORDINAL_NUMBER_PATTERN = `(?:[0-9]{1,2}(?:er)?)`;
function parseOrdinalNumberPattern(match) {
let num = match.toLowerCase();
num = num.replace(/(?:er)$/i, "");
return parseInt(num);
}
exports.parseOrdinalNumberPattern = parseOrdinalNumberPattern;
exports.YEAR_PATTERN = `(?:[1-9][0-9]{0,3}\\s*(?:AC|AD|p\\.\\s*C(?:hr?)?\\.\\s*n\\.)|[1-2][0-9]{3}|[5-9][0-9])`;
function parseYear(match) {
if (/AC/i.test(match)) {
match = match.replace(/BC/i, "");
return -parseInt(match);
}
if (/AD/i.test(match) || /C/i.test(match)) {
match = match.replace(/[^\d]+/i, "");
return parseInt(match);
}
let yearNumber = parseInt(match);
if (yearNumber < 100) {
if (yearNumber > 50) {
yearNumber = yearNumber + 1900;
}
else {
yearNumber = yearNumber + 2000;
}
}
return yearNumber;
}
exports.parseYear = parseYear;
const SINGLE_TIME_UNIT_PATTERN = `(${exports.NUMBER_PATTERN})\\s{0,5}(${pattern_1.matchAnyPattern(exports.TIME_UNIT_DICTIONARY)})\\s{0,5}`;
const SINGLE_TIME_UNIT_REGEX = new RegExp(SINGLE_TIME_UNIT_PATTERN, "i");
exports.TIME_UNITS_PATTERN = pattern_1.repeatedTimeunitPattern("", SINGLE_TIME_UNIT_PATTERN);
function parseTimeUnits(timeunitText) {
const fragments = {};
let remainingText = timeunitText;
let match = SINGLE_TIME_UNIT_REGEX.exec(remainingText);
while (match) {
collectDateTimeFragment(fragments, match);
remainingText = remainingText.substring(match[0].length);
match = SINGLE_TIME_UNIT_REGEX.exec(remainingText);
}
return fragments;
}
exports.parseTimeUnits = parseTimeUnits;
function collectDateTimeFragment(fragments, match) {
const num = parseNumberPattern(match[1]);
const unit = exports.TIME_UNIT_DICTIONARY[match[2].toLowerCase()];
fragments[unit] = num;
}
//# sourceMappingURL=constants.js.map
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