openaire-library/utils/string-utils.class.ts

130 lines
3.5 KiB
TypeScript

export class Dates {
public static isValidYear(yearString){
// First check for the pattern
if(!/^\d{4}$/.test(yearString))
return false;
var year = parseInt(yearString, 10);
// Check the ranges of month and year
if(year < 1000 || year > 3000 )
return false;
return true;
}
//format YYYY-MM-DD
public static isValidDate(dateString:string)
{
// First check for the pattern
if(!/^\d{4}\-\d{1,2}\-\d{1,2}$/.test(dateString))
return false;
// Parse the date parts to integers
var parts = dateString.split("-");
var day = parseInt(parts[2], 10);
var month = parseInt(parts[1], 10);
var year = parseInt(parts[0], 10);
if(!this.isValidYear(parts[0])){
return false;
}
// Check the ranges of month and year
if( month == 0 || month > 12)
return false;
var monthLength = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
// Adjust for leap years
if(year % 400 == 0 || (year % 100 != 0 && year % 4 == 0))
monthLength[1] = 29;
// Check the range of the day
return day > 0 && day <= monthLength[month - 1];
}
public static getDateToday():Date{
var myDate = new Date();
return myDate;
}
public static getDateToString(myDate:Date):string{
var date:string = myDate.getFullYear()+ "-" ;
date+=((myDate.getMonth() + 1)<10)?"0"+(myDate.getMonth() + 1):(myDate.getMonth() + 1) ;
date+="-";
date+= (myDate.getDate() <10 )? "0"+myDate.getDate():myDate.getDate() ;
return date;
}
public static getDateXMonthsAgo(x:number):Date{
var myDate = new Date();
myDate.setMonth(myDate.getMonth() - x);
return myDate;
}
public static getDateXYearsAgo(x:number):Date{
var myDate = new Date();
myDate.setFullYear(myDate.getFullYear() - x);
return myDate;
}
public static getDateFromString(date:string):Date{
var myDate = new Date();
myDate.setFullYear(+date.substring(0,4));
myDate.setMonth(+date.substring(5,7)-1);
myDate.setDate(+date.substring(8,11))
return myDate;
}
}
export class DOI{
public static getDOIsFromString(str:string):string[]{
var DOIs:string[] = [];
var words:string[] = str.split(" ");
for(var i=0; i< words.length; i++){
if(DOI.isValidDOI(words[i]) && DOIs.indexOf(words[i]) == -1){
DOIs.push(words[i]);
}
}
return DOIs;
}
public static isValidDOI(str:string):boolean{
var exp1 = /\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&\'<>])\S)+)\b/g
var exp2 = /\b(10[.][0-9]{4,}(?:[.][0-9]+)*\/(?:(?!["&\'<>])[[:graph:]])+)\b/g
if(str.match(exp1)!=null || str.match(exp2)!=null){
// console.log("It's a DOI");
return true;
}
return false;
}
}
export class StringUtils{
public static quote(params: string):string {
return '"'+params+'"';
}
public static unquote(params: string):string {
if(params.length > 2 && (params[0]=='"' && params[params.length-1]=='"') || (params[0]=="'" && params[params.length-1]=="'")){
params= params.substring(1, params.length-1);
}
return params;
}
public static URIEncode(params: string):string {
return encodeURIComponent(params);
}
public static URIDecode(params: string):string {
return decodeURIComponent(params);
}
public static b64DecodeUnicode(str) {
return decodeURIComponent(Array.prototype.map.call(atob(str), function(c) {
return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
}).join(''));
}
}