chrono-node
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A natural language date parser in Javascript
53 lines • 2.61 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("../constants");
const results_1 = require("../../../results");
const AbstractParserWithWordBoundary_1 = require("../../../common/parsers/AbstractParserWithWordBoundary");
const pattern_1 = require("../../../utils/pattern");
const PATTERN = new RegExp(`(questo|ultimo|scorso|prossimo|dopo\\s*questo|questa|ultima|scorsa|prossima\\s*questa)\\s*(${(0, pattern_1.matchAnyPattern)(constants_1.TIME_UNIT_DICTIONARY)})(?=\\s*)` + "(?=\\W|$)", "i");
const MODIFIER_WORD_GROUP = 1;
const RELATIVE_WORD_GROUP = 2;
class ITRelativeDateFormatParser extends AbstractParserWithWordBoundary_1.AbstractParserWithWordBoundaryChecking {
innerPattern() {
return PATTERN;
}
innerExtract(context, match) {
const modifier = match[MODIFIER_WORD_GROUP].toLowerCase();
const unitWord = match[RELATIVE_WORD_GROUP].toLowerCase();
const timeunit = constants_1.TIME_UNIT_DICTIONARY[unitWord];
if (modifier == "prossimo" || modifier.startsWith("dopo")) {
const timeUnits = {};
timeUnits[timeunit] = 1;
return results_1.ParsingComponents.createRelativeFromReference(context.reference, timeUnits);
}
if (modifier == "prima" || modifier == "precedente") {
const timeUnits = {};
timeUnits[timeunit] = -1;
return results_1.ParsingComponents.createRelativeFromReference(context.reference, timeUnits);
}
const components = context.createParsingComponents();
let date = new Date(context.reference.instant.getTime());
if (unitWord.match(/settimana/i)) {
date.setDate(date.getDate() - date.getDay());
components.imply("day", date.getDate());
components.imply("month", date.getMonth() + 1);
components.imply("year", date.getFullYear());
}
else if (unitWord.match(/mese/i)) {
date.setDate(1);
components.imply("day", date.getDate());
components.assign("year", date.getFullYear());
components.assign("month", date.getMonth() + 1);
}
else if (unitWord.match(/anno/i)) {
date.setDate(1);
date.setMonth(0);
components.imply("day", date.getDate());
components.imply("month", date.getMonth() + 1);
components.assign("year", date.getFullYear());
}
return components;
}
}
exports.default = ITRelativeDateFormatParser;
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