chrono-node
Version:
A natural language date parser in Javascript
26 lines • 1.06 kB
JavaScript
import { YEAR_PATTERN, parseYear } from "../constants.js";
import { AbstractParserWithWordBoundaryChecking } from "../../../common/parsers/AbstractParserWithWordBoundary.js";
const PATTERN = new RegExp("(?:\\bnăm\\s*(" + YEAR_PATTERN + ")|\\b([0-9]{1,4})\\s*(TCN))(?=\\W|$)", "i");
const YEAR_WITH_NAM_GROUP = 1;
const BARE_BC_YEAR_GROUP = 2;
const BARE_BC_SUFFIX_GROUP = 3;
export default class VIYearParser extends AbstractParserWithWordBoundaryChecking {
innerPattern() {
return PATTERN;
}
innerExtract(context, match) {
let yearText;
if (match[YEAR_WITH_NAM_GROUP]) {
yearText = match[YEAR_WITH_NAM_GROUP];
}
else {
yearText = match[BARE_BC_YEAR_GROUP] + " " + match[BARE_BC_SUFFIX_GROUP];
}
const result = context.createParsingResult(match.index, match[0]);
result.start.assign("year", parseYear(yearText));
result.start.imply("month", 1);
result.start.imply("day", 1);
return result;
}
}
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