1
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export class Dates {
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public static isValidYear(yearString){
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// First check for the pattern
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if(!/^\d{4}$/.test(yearString))
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return false;
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var year = parseInt(yearString, 10);
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// Check the ranges of month and year
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if(year < 1000 || year > 3000 )
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return false;
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return true;
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}
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//format YYYY-MM-DD
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public static isValidDate(dateString:string)
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{
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// First check for the pattern
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if(!/^\d{4}\-\d{1,2}\-\d{1,2}$/.test(dateString))
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return false;
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19
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// Parse the date parts to integers
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var parts = dateString.split("-");
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var day = parseInt(parts[2], 10);
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var month = parseInt(parts[1], 10);
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var year = parseInt(parts[0], 10);
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if(!this.isValidYear(parts[0])){
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return false;
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}
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29
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// Check the ranges of month and year
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if( month == 0 || month > 12)
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return false;
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32
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var monthLength = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
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34
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// Adjust for leap years
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if(year % 400 == 0 || (year % 100 != 0 && year % 4 == 0))
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monthLength[1] = 29;
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38
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// Check the range of the day
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return day > 0 && day <= monthLength[month - 1];
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41
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}
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43
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public static getDateToday():Date{
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44
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var myDate = new Date();
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return myDate;
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46
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|
47
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}
|
48
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public static getDateToString(myDate:Date):string{
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49
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var date:string = myDate.getFullYear()+ "-" ;
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50
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date+=((myDate.getMonth() + 1)<10)?"0"+(myDate.getMonth() + 1):(myDate.getMonth() + 1) ;
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51
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date+="-";
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52
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date+= (myDate.getDate() <10 )? "0"+myDate.getDate():myDate.getDate() ;
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53
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return date;
|
54
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|
55
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}
|
56
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public static getDateXMonthsAgo(x:number):Date{
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57
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var myDate = new Date();
|
58
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myDate.setMonth(myDate.getMonth() - x);
|
59
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return myDate;
|
60
|
|
61
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}
|
62
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public static getDateXYearsAgo(x:number):Date{
|
63
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var myDate = new Date();
|
64
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myDate.setFullYear(myDate.getFullYear() - x);
|
65
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return myDate;
|
66
|
|
67
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}
|
68
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public static getDateFromString(date:string):Date{
|
69
|
|
70
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var myDate = new Date();
|
71
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myDate.setFullYear(+date.substring(0,4));
|
72
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myDate.setMonth(((date.length>5 )?(+date.substring(5,7)-1):(0)));
|
73
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myDate.setDate(((date.length>8 )?(+date.substring(8,11)):(1)));
|
74
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return myDate;
|
75
|
|
76
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}
|
77
|
|
78
|
}
|
79
|
|
80
|
export class DOI{
|
81
|
|
82
|
public static getDOIsFromString(str:string):string[]{
|
83
|
var DOIs:string[] = [];
|
84
|
var words:string[] = str.split(" ");
|
85
|
|
86
|
for(var i=0; i< words.length; i++){
|
87
|
if(DOI.isValidDOI(words[i]) && DOIs.indexOf(words[i]) == -1){
|
88
|
DOIs.push(words[i]);
|
89
|
}
|
90
|
}
|
91
|
return DOIs;
|
92
|
}
|
93
|
public static isValidDOI(str:string):boolean{
|
94
|
|
95
|
var exp1 = /\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&\'<>])\S)+)\b/g
|
96
|
var exp2 = /\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&\'<>])[[:graph:]])+)\b/g
|
97
|
if(str.match(exp1)!=null || str.match(exp2)!=null){
|
98
|
// console.log("It's a DOI");
|
99
|
return true;
|
100
|
}
|
101
|
return false;
|
102
|
|
103
|
}
|
104
|
}
|
105
|
export class StringUtils{
|
106
|
public static quote(params: string):string {
|
107
|
return '"'+params+'"';
|
108
|
}
|
109
|
|
110
|
public static unquote(params: string):string {
|
111
|
if(params.length > 2 && (params[0]=='"' && params[params.length-1]=='"') || (params[0]=="'" && params[params.length-1]=="'")){
|
112
|
params= params.substring(1, params.length-1);
|
113
|
}
|
114
|
return params;
|
115
|
}
|
116
|
public static URIEncode(params: string):string {
|
117
|
return encodeURIComponent(params);
|
118
|
}
|
119
|
public static URIDecode(params: string):string {
|
120
|
return decodeURIComponent(params);
|
121
|
}
|
122
|
public static b64DecodeUnicode(str) {
|
123
|
return decodeURIComponent(Array.prototype.map.call(atob(str), function(c) {
|
124
|
return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
|
125
|
}).join(''));
|
126
|
}
|
127
|
private emailValidator(email : any): boolean {
|
128
|
if (email.match("^[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$"))
|
129
|
return true;
|
130
|
else
|
131
|
return false;
|
132
|
}
|
133
|
public static sliceString(mystr, size: number): string {
|
134
|
const sliced = String(mystr).substr(0, size);
|
135
|
return sliced + (String(mystr).length > size ? '...' : '');
|
136
|
}
|
137
|
|
138
|
}
|