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/*
*/
var moment = require('moment');
var Parser = require('../parser').Parser;
var ParsedResult = require('../../result').ParsedResult;
var util = require('../../utils/ZH-Hant.js');
var PATTERN = new RegExp(
'(\\d+|[' + Object.keys(util.NUMBER).join('') + ']+|半|幾)(?:\\s*)' +
'(?:個)?' +
'(秒(?:鐘)?|分鐘|小時|鐘|日|天|星期|禮拜|月|年)' +
'(?:(?:之|過)?後|(?:之)?內)', 'i'
);
var NUMBER_GROUP = 1;
var UNIT_GROUP = 2;
exports.Parser = function ZHHantCasualDateParser() {
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 number = parseInt(match[NUMBER_GROUP]);
if (isNaN(number)){
number = util.zhStringToNumber(match[NUMBER_GROUP]);
}
if (isNaN(number)){
var string = match[NUMBER_GROUP];
if (string === '幾'){
number = 3;
}else if(string === '半'){
number = 0.5;
}else{
//just in case
return null;
}
}
var date = moment(ref);
var unit = match[UNIT_GROUP];
var unitAbbr = unit[0];
if (unitAbbr.match(/[日天星禮月年]/)){
if(unitAbbr == '日' || unitAbbr == '天'){
date.add(number, 'd');
}else if(unitAbbr == '星' || unitAbbr == '禮'){
date.add(number * 7, 'd');
}else if(unitAbbr == '月'){
date.add(number, 'month');
}else if(unitAbbr == '年'){
date.add(number, 'year');
}
result.start.assign('year', date.year());
result.start.assign('month', date.month() + 1);
result.start.assign('day', date.date());
return result;
}
if(unitAbbr == '秒'){
date.add(number, 'second');
}else if(unitAbbr == '分'){
date.add(number, 'minute');
}else if(unitAbbr == '小' || unitAbbr == '鐘'){
date.add(number, 'hour');
}
result.start.imply('year', date.year());
result.start.imply('month', date.month() + 1);
result.start.imply('day', date.date());
result.start.assign('hour', date.hour());
result.start.assign('minute', date.minute());
result.start.assign('second', date.second());
result.tags.ZHHantDeadlineFormatParser = true;
return result;
};
};
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