You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
336 lines
14 KiB
336 lines
14 KiB
// ===================================================================
|
|
// Original Author: Matt Kruse <matt@mattkruse.com>
|
|
// WWW: http://www.mattkruse.com/
|
|
//
|
|
// NOTICE: You may use this code for any purpose, commercial or
|
|
// private, without any further permission from the author. You may
|
|
// remove this notice from your final code if you wish, however it is
|
|
// appreciated by the author if at least my web site address is kept.
|
|
//
|
|
// You may *NOT* re-distribute this code in any way except through its
|
|
// use. That means, you can include it in your product, or your web
|
|
// site, or any other form where the code is actually being used. You
|
|
// may not put the plain javascript up on your site for download or
|
|
// include it in your javascript libraries for download.
|
|
// If you wish to share this code with others, please just point them
|
|
// to the URL instead.
|
|
// Please DO NOT link directly to my .js files from your site. Copy
|
|
// the files to your server and use them there. Thank you.
|
|
// ===================================================================
|
|
|
|
// HISTORY
|
|
// ------------------------------------------------------------------
|
|
// Jul 23, 2007: Add capital Y and D for Year and Date formats
|
|
// Dec 19, 2006: Replaced calls to getYear() with getFullYear()
|
|
// Dec 19, 2006: Removed parseDate() function
|
|
// Dec 19, 2006: Modified getDateFromFormat() to return Date or null. Also made
|
|
// pass null to Date constructor for values it doesn't know.
|
|
// Dec 18, 2006: Packaged for use in crystal reports viewer
|
|
// May 17, 2003: Fixed bug in parseDate() for dates <1970
|
|
// March 11, 2003: Added parseDate() function
|
|
// March 11, 2003: Added "NNN" formatting option. Doesn't match up
|
|
// perfectly with SimpleDateFormat formats, but
|
|
// backwards-compatability was required.
|
|
|
|
// ------------------------------------------------------------------
|
|
// These functions use the same 'format' strings as the
|
|
// java.text.SimpleDateFormat class, with minor exceptions.
|
|
// The format string consists of the following abbreviations:
|
|
//
|
|
// Field | Full Form | Short Form
|
|
// -------------+--------------------+-----------------------
|
|
// Year | yyyy (4 digits) | yy (2 digits), y (2 or 4 digits)
|
|
// | YYYY (4 digits) | YY (2 digits), Y (2 or 4 digits)
|
|
// Month | MMM (name or abbr.)| MM (2 digits), M (1 or 2 digits)
|
|
// | NNN (abbr.) |
|
|
// Day of Month | dd (2 digits) | d (1 or 2 digits)
|
|
// | DD (2 digits) | D (1 or 2 digits)
|
|
// Day of Week | EE (name) | E (abbr)
|
|
// Hour (1-12) | hh (2 digits) | h (1 or 2 digits)
|
|
// Hour (0-23) | HH (2 digits) | H (1 or 2 digits)
|
|
// Hour (0-11) | KK (2 digits) | K (1 or 2 digits)
|
|
// Hour (1-24) | kk (2 digits) | k (1 or 2 digits)
|
|
// Minute | mm (2 digits) | m (1 or 2 digits)
|
|
// Second | ss (2 digits) | s (1 or 2 digits)
|
|
// AM/PM | a |
|
|
//
|
|
// NOTE THE DIFFERENCE BETWEEN MM and mm! Month=MM, not mm!
|
|
// Examples:
|
|
// "MMM d, y" matches: January 01, 2000
|
|
// Dec 1, 1900
|
|
// Nov 20, 00
|
|
// "M/d/yy" matches: 01/20/00
|
|
// 9/2/00
|
|
// "MMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
|
|
// ------------------------------------------------------------------
|
|
|
|
if (typeof bobj == 'undefined') {
|
|
bobj = {};
|
|
}
|
|
|
|
if (typeof bobj.external == 'undefined') {
|
|
bobj.external = {};
|
|
}
|
|
|
|
if (typeof bobj.external.date == 'undefined') {
|
|
bobj.external.date = {};
|
|
}
|
|
|
|
bobj.external.date.MONTH_NAMES=new Array('January','February','March','April','May','June','July','August','September','October','November','December','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
|
|
bobj.external.date.DAY_NAMES=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sun','Mon','Tue','Wed','Thu','Fri','Sat');
|
|
bobj.external.date.LZ = function(x) {return(x<0||x>9?"":"0")+x}
|
|
|
|
// ------------------------------------------------------------------
|
|
// isDate ( date_string, format_string )
|
|
// Returns true if date string matches format of format string and
|
|
// is a valid date. Else returns false.
|
|
// It is recommended that you trim whitespace around the value before
|
|
// passing it to this function, as whitespace is NOT ignored!
|
|
// ------------------------------------------------------------------
|
|
bobj.external.date.isDate = function(val,format) {
|
|
var date=bobj.external.date.getDateFromFormat(val,format);
|
|
if (!date) { return false; }
|
|
return true;
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// compareDates(date1,date1format,date2,date2format)
|
|
// Compare two date strings to see which is greater.
|
|
// Returns:
|
|
// 1 if date1 is greater than date2
|
|
// 0 if date2 is greater than date1 of if they are the same
|
|
// -1 if either of the dates is in an invalid format
|
|
// -------------------------------------------------------------------
|
|
bobj.external.date.compareDates = function(date1,dateformat1,date2,dateformat2) {
|
|
var d1=bobj.external.date.getDateFromFormat(date1,dateformat1);
|
|
var d2=bobj.external.date.getDateFromFormat(date2,dateformat2);
|
|
if (!d1 || !d2) {
|
|
return -1;
|
|
}
|
|
else if (d1.getTime() > d2.getTime()) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// formatDate (date_object, format)
|
|
// Returns a date in the output format specified.
|
|
// The format string uses the same abbreviations as in getDateFromFormat()
|
|
// ------------------------------------------------------------------
|
|
bobj.external.date.formatDate = function(date,format) {
|
|
format=format+"";
|
|
var result="";
|
|
var i_format=0;
|
|
var c="";
|
|
var token="";
|
|
var y=date.getFullYear()+"";
|
|
var M=date.getMonth()+1;
|
|
var d=date.getDate();
|
|
var E=date.getDay();
|
|
var H=date.getHours();
|
|
var m=date.getMinutes();
|
|
var s=date.getSeconds();
|
|
var yyyy,yy,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
|
|
// Convert real date parts into formatted versions
|
|
var value=new Object();
|
|
while (y.length < 4) {y="0" + y}
|
|
value["y"]=""+y;
|
|
value["yyyy"]=y;
|
|
value["yy"]=y.substring(2,4);
|
|
value["Y"]=value["y"];
|
|
value["YY"]=value["yy"];
|
|
value["YYYY"]=value["yyyy"];
|
|
value["M"]=M;
|
|
value["MM"]=bobj.external.date.LZ(M);
|
|
value["MMM"]=bobj.external.date.MONTH_NAMES[M-1];
|
|
value["NNN"]=bobj.external.date.MONTH_NAMES[M+11];
|
|
value["d"]=d;
|
|
value["dd"]=bobj.external.date.LZ(d);
|
|
value["D"]=value["d"];
|
|
value["DD"]=value["dd"];
|
|
value["E"]=bobj.external.date.DAY_NAMES[E+7];
|
|
value["EE"]=bobj.external.date.DAY_NAMES[E];
|
|
value["H"]=H;
|
|
value["HH"]=bobj.external.date.LZ(H);
|
|
if (H==0){value["h"]=12;}
|
|
else if (H>12){value["h"]=H-12;}
|
|
else {value["h"]=H;}
|
|
value["hh"]=bobj.external.date.LZ(value["h"]);
|
|
if (H>11){value["K"]=H-12;} else {value["K"]=H;}
|
|
value["k"]=H+1;
|
|
value["KK"]=bobj.external.date.LZ(value["K"]);
|
|
value["kk"]=bobj.external.date.LZ(value["k"]);
|
|
if (H > 11) { value["a"]="PM"; }
|
|
else { value["a"]="AM"; }
|
|
value["m"]=m;
|
|
value["mm"]=bobj.external.date.LZ(m);
|
|
value["s"]=s;
|
|
value["ss"]=bobj.external.date.LZ(s);
|
|
while (i_format < format.length) {
|
|
c=format.charAt(i_format);
|
|
token="";
|
|
while ((format.charAt(i_format)==c) && (i_format < format.length)) {
|
|
token += format.charAt(i_format++);
|
|
}
|
|
if (value[token] != null) { result=result + value[token]; }
|
|
else { result=result + token; }
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// Utility functions for parsing in getDateFromFormat()
|
|
// ------------------------------------------------------------------
|
|
bobj.external.date._isInteger = function(val) {
|
|
var digits="1234567890";
|
|
for (var i=0; i < val.length; i++) {
|
|
if (digits.indexOf(val.charAt(i))==-1) { return false; }
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bobj.external.date._getInt = function(str,i,minlength,maxlength) {
|
|
for (var x=maxlength; x>=minlength; x--) {
|
|
var token=str.substring(i,i+x);
|
|
if (token.length < minlength) { return null; }
|
|
if (bobj.external.date._isInteger(token)) { return token; }
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// getDateFromFormat( date_string , format_string )
|
|
//
|
|
// This function takes a date string and a format string. It matches
|
|
// If the date string matches the format string, it returns the date.
|
|
// If it does not match, it returns null.
|
|
// ------------------------------------------------------------------
|
|
bobj.external.date.getDateFromFormat = function(val,format) {
|
|
val=val+"";
|
|
format=format+"";
|
|
var i_val=0;
|
|
var i_format=0;
|
|
var c="";
|
|
var token="";
|
|
var token2="";
|
|
var x,y;
|
|
var year=null;
|
|
var month=null;
|
|
var date=null;
|
|
var hh=null;
|
|
var mm=null;
|
|
var ss=null;
|
|
var ampm="";
|
|
|
|
while (i_format < format.length) {
|
|
// Get next token from format string
|
|
c=format.charAt(i_format);
|
|
token="";
|
|
while ((format.charAt(i_format)==c) && (i_format < format.length)) {
|
|
token += format.charAt(i_format++);
|
|
}
|
|
// Extract contents of value based on format token
|
|
if (token=="yyyy" || token=="YYYY" || token=="yy" || token=="YY" || token=="y" || token=="Y") {
|
|
if (token=="yyyy" || token=="YYYY") { x=4;y=4; }
|
|
if (token=="yy" || token=="YY") { x=2;y=2; }
|
|
if (token=="y" || token=="Y") { x=2;y=4; }
|
|
year=bobj.external.date._getInt(val,i_val,x,y);
|
|
if (year==null) { return null; }
|
|
i_val += year.length;
|
|
if (year.length==2) {
|
|
if (year > 70) { year=1900+(year-0); }
|
|
else { year=2000+(year-0); }
|
|
}
|
|
}
|
|
else if (token=="MMM"||token=="NNN"){
|
|
month=0;
|
|
for (var i=0; i<bobj.external.date.MONTH_NAMES.length; i++) {
|
|
var month_name=bobj.external.date.MONTH_NAMES[i];
|
|
if (val.substring(i_val,i_val+month_name.length).toLowerCase()==month_name.toLowerCase()) {
|
|
if (token=="MMM"||(token=="NNN"&&i>11)) {
|
|
month=i+1;
|
|
if (month>12) { month -= 12; }
|
|
i_val += month_name.length;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if ((month < 1)||(month>12)){return null;}
|
|
}
|
|
else if (token=="EE"||token=="E"){
|
|
for (var i=0; i<bobj.external.date.DAY_NAMES.length; i++) {
|
|
var day_name=bobj.external.date.DAY_NAMES[i];
|
|
if (val.substring(i_val,i_val+day_name.length).toLowerCase()==day_name.toLowerCase()) {
|
|
i_val += day_name.length;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (token=="MM"||token=="M") {
|
|
month=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(month==null||(month<1)||(month>12)){return null;}
|
|
i_val+=month.length;}
|
|
else if (token=="dd"||token=="DD"||token=="d"||token=="D") {
|
|
date=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(date==null||(date<1)||(date>31)){return null;}
|
|
i_val+=date.length;}
|
|
else if (token=="hh"||token=="h") {
|
|
hh=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(hh==null||(hh<1)||(hh>12)){return null;}
|
|
i_val+=hh.length;}
|
|
else if (token=="HH"||token=="H") {
|
|
hh=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(hh==null||(hh<0)||(hh>23)){return null;}
|
|
i_val+=hh.length;}
|
|
else if (token=="KK"||token=="K") {
|
|
hh=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(hh==null||(hh<0)||(hh>11)){return null;}
|
|
i_val+=hh.length;}
|
|
else if (token=="kk"||token=="k") {
|
|
hh=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(hh==null||(hh<1)||(hh>24)){return null;}
|
|
i_val+=hh.length;hh--;}
|
|
else if (token=="mm"||token=="m") {
|
|
mm=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(mm==null||(mm<0)||(mm>59)){return null;}
|
|
i_val+=mm.length;}
|
|
else if (token=="ss"||token=="s") {
|
|
ss=bobj.external.date._getInt(val,i_val,token.length,2);
|
|
if(ss==null||(ss<0)||(ss>59)){return null;}
|
|
i_val+=ss.length;}
|
|
else if (token=="a") {
|
|
if (val.substring(i_val,i_val+2).toLowerCase()=="am") {ampm="AM";}
|
|
else if (val.substring(i_val,i_val+2).toLowerCase()=="pm") {ampm="PM";}
|
|
else {return null;}
|
|
i_val+=2;}
|
|
else {
|
|
if (val.substring(i_val,i_val+token.length)!=token) {return null;}
|
|
else {i_val+=token.length;}
|
|
}
|
|
}
|
|
// If there are any trailing characters left in the value, it doesn't match
|
|
if (i_val != val.length) { return null; }
|
|
// Is date valid for month?
|
|
if (month==2) {
|
|
// Check for leap year
|
|
if ( ( (year%4==0)&&(year%100 != 0) ) || (year%400==0) ) { // leap year
|
|
if (date > 29){ return null; }
|
|
}
|
|
else { if (date > 28) { return null; } }
|
|
}
|
|
if ((month==4)||(month==6)||(month==9)||(month==11)) {
|
|
if (date > 30) { return null; }
|
|
}
|
|
// Correct hours value
|
|
if (hh !== null) {
|
|
if (hh<12 && ampm=="PM") { hh=hh-0+12; }
|
|
else if (hh>11 && ampm=="AM") { hh-=12; }
|
|
}
|
|
|
|
var newDate = new Date(year,month-1,date,hh,mm,ss);
|
|
newDate.setFullYear(year);
|
|
return newDate;
|
|
}
|
|
|