1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
*/
var moment = require('moment');
var Parser = require('../parser').Parser;
var ParsedResult = require('../../result').ParsedResult;
var util = require('../../utils/EN');
var PATTERN = new RegExp('(\\W|^)' +
'(?:on\\s*?)?' +
'(?:(Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sun|Mon|Tue|Wed|Thu|Fri|Sat)\\s*,?\\s*)?' +
'(([0-9]{1,2})(?:st|nd|rd|th)?|' + util.ORDINAL_WORDS_PATTERN + ')' +
'(?:\\s*' +
'(?:to|\\-|\\–|until|through|till|\\s)\\s*' +
'(([0-9]{1,2})(?:st|nd|rd|th)?|' + util.ORDINAL_WORDS_PATTERN + ')' +
')?' +
'(?:-|\/|\\s*(?:of)?\\s*)' +
'(' + util.MONTH_PATTERN + ')' +
'(?:' +
'(?:-|\/|,?\\s*)' +
'((?:' +
'[1-9][0-9]{0,3}\\s*(?:BE|AD|BC)|' +
'[1-2][0-9]{3}' +
')(?![^\\s]\\d))' +
')?' +
'(?=\\W|$)', 'i'
);
var WEEKDAY_GROUP = 2;
var DATE_GROUP = 3;
var DATE_NUM_GROUP = 4;
var DATE_TO_GROUP = 5;
var DATE_TO_NUM_GROUP = 6;
var MONTH_NAME_GROUP = 7;
var YEAR_GROUP = 8;
exports.Parser = function ENMonthNameLittleEndianParser(){
Parser.apply(this, arguments);
this.pattern = function() { return PATTERN; }
this.extract = function(text, ref, match, opt){
var result = new ParsedResult({
text: match[0].substr(match[1].length, match[0].length - match[1].length),
index: match.index + match[1].length,
ref: ref
});
var month = match[MONTH_NAME_GROUP];
month = util.MONTH_OFFSET[month.toLowerCase()];
var day = match[DATE_NUM_GROUP] ?
parseInt(match[DATE_NUM_GROUP]):
util.ORDINAL_WORDS[match[DATE_GROUP].trim().replace('-', ' ').toLowerCase()];
var year = null;
if (match[YEAR_GROUP]) {
year = match[YEAR_GROUP];
if (/BE/i.test(year)) {
// Buddhist Era
year = year.replace(/BE/i, '');
year = parseInt(year) - 543;
} else if (/BC/i.test(year)){
// Before Christ
year = year.replace(/BC/i, '');
year = -parseInt(year);
} else if (/AD/i.test(year)){
year = year.replace(/AD/i, '');
year = parseInt(year);
} else {
year = parseInt(year);
if (year < 100){
year = year + 2000;
}
}
}
if(year){
result.start.assign('day', day);
result.start.assign('month', month);
result.start.assign('year', year);
} else {
//Find the most appropriated year
var refMoment = moment(ref);
refMoment.month(month - 1);
refMoment.date(day);
refMoment.year(moment(ref).year());
var nextYear = refMoment.clone().add(1, 'y');
var lastYear = refMoment.clone().add(-1, 'y');
if( Math.abs(nextYear.diff(moment(ref))) < Math.abs(refMoment.diff(moment(ref))) ){
refMoment = nextYear;
}
else if( Math.abs(lastYear.diff(moment(ref))) < Math.abs(refMoment.diff(moment(ref))) ){
refMoment = lastYear;
}
result.start.assign('day', day);
result.start.assign('month', month);
result.start.imply('year', refMoment.year());
}
// Weekday component
if (match[WEEKDAY_GROUP]) {
var weekday = match[WEEKDAY_GROUP];
weekday = util.WEEKDAY_OFFSET[weekday.toLowerCase()]
result.start.assign('weekday', weekday);
}
// Text can be 'range' value. Such as '12 - 13 January 2012'
if (match[DATE_TO_GROUP]) {
var endDate = match[DATE_TO_NUM_GROUP] ?
parseInt(match[DATE_TO_NUM_GROUP]):
util.ORDINAL_WORDS[match[DATE_TO_GROUP].trim().replace('-', ' ').toLowerCase()];
result.end = result.start.clone();
result.end.assign('day', endDate);
}
result.tags['ENMonthNameLittleEndianParser'] = true;
return result;
};
};
|
