chrono-node
Version:
A natural language date parser in Javascript
34 lines • 1.63 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 duration_1 = require("../../../calculation/duration");
const PATTERN = new RegExp(`(denna|den här|förra|passerade|nästa|kommande|efter|\\+|-)\\s*(${constants_1.TIME_UNITS_PATTERN})(?=\\W|$)`, "i");
const PATTERN_NO_ABBR = new RegExp(`(denna|den här|förra|passerade|nästa|kommande|efter|\\+|-)\\s*(${constants_1.TIME_UNITS_NO_ABBR_PATTERN})(?=\\W|$)`, "i");
class SVTimeUnitCasualRelativeFormatParser extends AbstractParserWithWordBoundary_1.AbstractParserWithWordBoundaryChecking {
constructor(allowAbbreviations = true) {
super();
this.allowAbbreviations = allowAbbreviations;
}
innerPattern() {
return this.allowAbbreviations ? PATTERN : PATTERN_NO_ABBR;
}
innerExtract(context, match) {
const prefix = match[1].toLowerCase();
let duration = (0, constants_1.parseDuration)(match[2]);
if (!duration) {
return null;
}
switch (prefix) {
case "förra":
case "passerade":
case "-":
duration = (0, duration_1.reverseDuration)(duration);
break;
}
return results_1.ParsingComponents.createRelativeFromReference(context.reference, duration);
}
}
exports.default = SVTimeUnitCasualRelativeFormatParser;
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