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/*
*/
var moment = require('moment');
var Parser = require('../parser').Parser;
var ParsedResult = require('../../result').ParsedResult;
var updateParsedComponent = require('../en/ENWeekdayParser').updateParsedComponent;
var util = require('../../utils/ZH-Hant.js');
var PATTERN = new RegExp(
'(上|今|下|這|呢)?' +
'(?:個)?' +
'(?:星期|禮拜)' +
'(' + Object.keys(util.WEEKDAY_OFFSET).join('|') + ')'
);
var PREFIX_GROUP = 1;
var WEEKDAY_GROUP = 2;
exports.Parser = function ZHHantWeekdayParser() {
Parser.apply(this, arguments);
this.pattern = function() {
return PATTERN;
};
this.extract = function(text, ref, match, opt) {
var index = match.index;
text = match[0];
var result = new ParsedResult({
index: index,
text: text,
ref: ref
});
var dayOfWeek = match[WEEKDAY_GROUP];
var offset = util.WEEKDAY_OFFSET[dayOfWeek];
if(offset === undefined) return null;
var modifier = null;
var prefix = match[PREFIX_GROUP];
if(prefix == '上') {
modifier = 'last';
} else if(prefix == '下') {
modifier = 'next';
} else if(prefix == '今' || prefix == '這' || prefix == '呢') {
modifier = 'this';
}
updateParsedComponent(result, ref, offset, modifier);
result.tags['ZHHantWeekdayParser'] = true;
return result;
};
};
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