mirror of
https://github.com/koalyptus/TableFilter.git
synced 2024-06-16 12:45:49 +02:00
172 lines
5.6 KiB
JavaScript
172 lines
5.6 KiB
JavaScript
/**
|
|
* Date utilities
|
|
*/
|
|
|
|
export default {
|
|
isValid(dateStr, format){
|
|
if(!format) {
|
|
format = 'DMY';
|
|
}
|
|
format = format.toUpperCase();
|
|
if(format.length != 3) {
|
|
if(format==='DDMMMYYYY'){
|
|
let d = this.format(dateStr, format);
|
|
dateStr = d.getDate() +'/'+ (d.getMonth()+1) +'/'+
|
|
d.getFullYear();
|
|
format = 'DMY';
|
|
}
|
|
}
|
|
if((format.indexOf('M') === -1) || (format.indexOf('D') === -1) ||
|
|
(format.indexOf('Y') === -1)){
|
|
format = 'DMY';
|
|
}
|
|
let reg1, reg2;
|
|
// If the year is first
|
|
if(format.substring(0, 1) == 'Y') {
|
|
reg1 = /^\d{2}(\-|\/|\.)\d{1,2}\1\d{1,2}$/;
|
|
reg2 = /^\d{4}(\-|\/|\.)\d{1,2}\1\d{1,2}$/;
|
|
} else if(format.substring(1, 2) == 'Y') { // If the year is second
|
|
reg1 = /^\d{1,2}(\-|\/|\.)\d{2}\1\d{1,2}$/;
|
|
reg2 = /^\d{1,2}(\-|\/|\.)\d{4}\1\d{1,2}$/;
|
|
} else { // The year must be third
|
|
reg1 = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{2}$/;
|
|
reg2 = /^\d{1,2}(\-|\/|\.)\d{1,2}\1\d{4}$/;
|
|
}
|
|
// If it doesn't conform to the right format (with either a 2 digit year
|
|
// or 4 digit year), fail
|
|
if(reg1.test(dateStr) === false && reg2.test(dateStr) === false) {
|
|
return false;
|
|
}
|
|
// Split into 3 parts based on what the divider was
|
|
let parts = dateStr.split(RegExp.$1);
|
|
let mm, dd, yy;
|
|
// Check to see if the 3 parts end up making a valid date
|
|
if(format.substring(0, 1) === 'M'){
|
|
mm = parts[0];
|
|
} else if(format.substring(1, 2) === 'M'){
|
|
mm = parts[1];
|
|
} else {
|
|
mm = parts[2];
|
|
}
|
|
if(format.substring(0, 1) === 'D'){
|
|
dd = parts[0];
|
|
} else if(format.substring(1, 2) === 'D'){
|
|
dd = parts[1];
|
|
} else {
|
|
dd = parts[2];
|
|
}
|
|
if(format.substring(0, 1) === 'Y'){
|
|
yy = parts[0];
|
|
} else if(format.substring(1, 2) === 'Y'){
|
|
yy = parts[1];
|
|
} else {
|
|
yy = parts[2];
|
|
}
|
|
if(parseInt(yy, 10) <= 50){
|
|
yy = (parseInt(yy, 10) + 2000).toString();
|
|
}
|
|
if(parseInt(yy, 10) <= 99){
|
|
yy = (parseInt(yy, 10) + 1900).toString();
|
|
}
|
|
let dt = new Date(
|
|
parseInt(yy, 10), parseInt(mm, 10)-1, parseInt(dd, 10),
|
|
0, 0, 0, 0);
|
|
if(parseInt(dd, 10) != dt.getDate()){
|
|
return false;
|
|
}
|
|
if(parseInt(mm, 10)-1 != dt.getMonth()){
|
|
return false;
|
|
}
|
|
return true;
|
|
},
|
|
format(dateStr, formatStr) {
|
|
if(!formatStr){
|
|
formatStr = 'DMY';
|
|
}
|
|
if(!dateStr || dateStr === ''){
|
|
return new Date(1001, 0, 1);
|
|
}
|
|
let oDate;
|
|
|
|
switch(formatStr.toUpperCase()){
|
|
case 'DDMMMYYYY':
|
|
parts = dateStr.replace(/[- \/.]/g,' ').split(' ');
|
|
oDate = new Date(y2kDate(parts[2]),mmm2mm(parts[1])-1,parts[0]);
|
|
break;
|
|
case 'DMY':
|
|
/* jshint ignore:start */
|
|
parts = dateStr.replace(
|
|
/^(0?[1-9]|[12][0-9]|3[01])([- \/.])(0?[1-9]|1[012])([- \/.])((\d\d)?\d\d)$/,'$1 $3 $5').split(' ');
|
|
oDate = new Date(y2kDate(parts[2]),parts[1]-1,parts[0]);
|
|
/* jshint ignore:end */
|
|
break;
|
|
case 'MDY':
|
|
/* jshint ignore:start */
|
|
parts = dateStr.replace(
|
|
/^(0?[1-9]|1[012])([- \/.])(0?[1-9]|[12][0-9]|3[01])([- \/.])((\d\d)?\d\d)$/,'$1 $3 $5').split(' ');
|
|
oDate = new Date(y2kDate(parts[2]),parts[0]-1,parts[1]);
|
|
/* jshint ignore:end */
|
|
break;
|
|
case 'YMD':
|
|
/* jshint ignore:start */
|
|
parts = dateStr.replace(/^((\d\d)?\d\d)([- \/.])(0?[1-9]|1[012])([- \/.])(0?[1-9]|[12][0-9]|3[01])$/,'$1 $4 $6').split(' ');
|
|
oDate = new Date(y2kDate(parts[0]),parts[1]-1,parts[2]);
|
|
/* jshint ignore:end */
|
|
break;
|
|
default: //in case format is not correct
|
|
/* jshint ignore:start */
|
|
parts = dateStr.replace(/^(0?[1-9]|[12][0-9]|3[01])([- \/.])(0?[1-9]|1[012])([- \/.])((\d\d)?\d\d)$/,'$1 $3 $5').split(' ');
|
|
oDate = new Date(y2kDate(parts[2]),parts[1]-1,parts[0]);
|
|
/* jshint ignore:end */
|
|
break;
|
|
}
|
|
return oDate;
|
|
}
|
|
};
|
|
|
|
function y2kDate(yr){
|
|
if(yr === undefined){
|
|
return 0;
|
|
}
|
|
if(yr.length>2){
|
|
return yr;
|
|
}
|
|
let y;
|
|
//>50 belong to 1900
|
|
if(yr <= 99 && yr>50){
|
|
y = '19' + yr;
|
|
}
|
|
//<50 belong to 2000
|
|
if(yr<50 || yr === '00'){
|
|
y = '20' + yr;
|
|
}
|
|
return y;
|
|
}
|
|
|
|
function mmm2mm(mmm){
|
|
if(mmm === undefined){
|
|
return 0;
|
|
}
|
|
let mondigit;
|
|
let MONTH_NAMES = [
|
|
'january','february','march','april','may','june','july',
|
|
'august','september','october','november','december',
|
|
'jan','feb','mar','apr','may','jun','jul','aug','sep','oct',
|
|
'nov','dec'
|
|
];
|
|
for(let m_i=0; m_i < MONTH_NAMES.length; m_i++){
|
|
let month_name = MONTH_NAMES[m_i];
|
|
if (mmm.toLowerCase() === month_name){
|
|
mondigit = m_i+1;
|
|
break;
|
|
}
|
|
}
|
|
if(mondigit > 11 || mondigit < 23){
|
|
mondigit = mondigit - 12;
|
|
}
|
|
if(mondigit < 1 || mondigit > 12){
|
|
return 0;
|
|
}
|
|
return mondigit;
|
|
}
|