summaryrefslogtreecommitdiff
path: root/javascript/kruse/date.js
diff options
context:
space:
mode:
Diffstat (limited to 'javascript/kruse/date.js')
-rw-r--r--javascript/kruse/date.js335
1 files changed, 0 insertions, 335 deletions
diff --git a/javascript/kruse/date.js b/javascript/kruse/date.js
deleted file mode 100644
index 9a92340..0000000
--- a/javascript/kruse/date.js
+++ /dev/null
@@ -1,335 +0,0 @@
-// ===================================================================
-// 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
-// ------------------------------------------------------------------
-// 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)
-// 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)
-// 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"
-// ------------------------------------------------------------------
-
-var 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');
-var DAY_NAMES=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sun','Mon','Tue','Wed','Thu','Fri','Sat');
-function LZ(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!
-// ------------------------------------------------------------------
-function isDate(val,format) {
- var date=getDateFromFormat(val,format);
- if (date==0) { 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
-// -------------------------------------------------------------------
-function compareDates(date1,dateformat1,date2,dateformat2) {
- var d1=getDateFromFormat(date1,dateformat1);
- var d2=getDateFromFormat(date2,dateformat2);
- if (d1==0 || d2==0) {
- return -1;
- }
- else if (d1 > d2) {
- 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()
-// ------------------------------------------------------------------
-function formatDate(date,format) {
- format=format+"";
- var result="";
- var i_format=0;
- var c="";
- var token="";
- var y=date.getYear()+"";
- 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();
- if (y.length < 4) {y=""+(y-0+1900);}
- value["y"]=""+y;
- value["yyyy"]=y;
- value["yy"]=y.substring(2,4);
- value["M"]=M;
- value["MM"]=LZ(M);
- value["MMM"]=MONTH_NAMES[M-1];
- value["NNN"]=MONTH_NAMES[M+11];
- value["d"]=d;
- value["dd"]=LZ(d);
- value["E"]=DAY_NAMES[E+7];
- value["EE"]=DAY_NAMES[E];
- value["H"]=H;
- value["HH"]=LZ(H);
- if (H==0){value["h"]=12;}
- else if (H>12){value["h"]=H-12;}
- else {value["h"]=H;}
- value["hh"]=LZ(value["h"]);
- if (H>11){value["K"]=H-12;} else {value["K"]=H;}
- value["k"]=H+1;
- value["KK"]=LZ(value["K"]);
- value["kk"]=LZ(value["k"]);
- if (H > 11) { value["a"]="PM"; }
- else { value["a"]="AM"; }
- value["m"]=m;
- value["mm"]=LZ(m);
- value["s"]=s;
- value["ss"]=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()
-// ------------------------------------------------------------------
-function _isInteger(val) {
- var digits="1234567890";
- for (var i=0; i < val.length; i++) {
- if (digits.indexOf(val.charAt(i))==-1) { return false; }
- }
- return true;
- }
-function _getInt(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 (_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
-// getTime() of the date. If it does not match, it returns 0.
-// ------------------------------------------------------------------
-function getDateFromFormat(val,format) {
- val=val+"";
- format=format+"";
- var i_val=0;
- var i_format=0;
- var c="";
- var token="";
- var token2="";
- var x,y;
- var now=new Date();
- var year=now.getYear();
- var month=now.getMonth()+1;
- var date=1;
- var hh=now.getHours();
- var mm=now.getMinutes();
- var ss=now.getSeconds();
- 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=="yy" || token=="y") {
- if (token=="yyyy") { x=4;y=4; }
- if (token=="yy") { x=2;y=2; }
- if (token=="y") { x=2;y=4; }
- year=_getInt(val,i_val,x,y);
- if (year==null) { return 0; }
- 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<MONTH_NAMES.length; i++) {
- var month_name=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 0;}
- }
- else if (token=="EE"||token=="E"){
- for (var i=0; i<DAY_NAMES.length; i++) {
- var day_name=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=_getInt(val,i_val,token.length,2);
- if(month==null||(month<1)||(month>12)){return 0;}
- i_val+=month.length;}
- else if (token=="dd"||token=="d") {
- date=_getInt(val,i_val,token.length,2);
- if(date==null||(date<1)||(date>31)){return 0;}
- i_val+=date.length;}
- else if (token=="hh"||token=="h") {
- hh=_getInt(val,i_val,token.length,2);
- if(hh==null||(hh<1)||(hh>12)){return 0;}
- i_val+=hh.length;}
- else if (token=="HH"||token=="H") {
- hh=_getInt(val,i_val,token.length,2);
- if(hh==null||(hh<0)||(hh>23)){return 0;}
- i_val+=hh.length;}
- else if (token=="KK"||token=="K") {
- hh=_getInt(val,i_val,token.length,2);
- if(hh==null||(hh<0)||(hh>11)){return 0;}
- i_val+=hh.length;}
- else if (token=="kk"||token=="k") {
- hh=_getInt(val,i_val,token.length,2);
- if(hh==null||(hh<1)||(hh>24)){return 0;}
- i_val+=hh.length;hh--;}
- else if (token=="mm"||token=="m") {
- mm=_getInt(val,i_val,token.length,2);
- if(mm==null||(mm<0)||(mm>59)){return 0;}
- i_val+=mm.length;}
- else if (token=="ss"||token=="s") {
- ss=_getInt(val,i_val,token.length,2);
- if(ss==null||(ss<0)||(ss>59)){return 0;}
- 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 0;}
- i_val+=2;}
- else {
- if (val.substring(i_val,i_val+token.length)!=token) {return 0;}
- 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 0; }
- // 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 0; }
- }
- else { if (date > 28) { return 0; } }
- }
- if ((month==4)||(month==6)||(month==9)||(month==11)) {
- if (date > 30) { return 0; }
- }
- // Correct hours value
- 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);
- return newdate.getTime();
- }
-
-// ------------------------------------------------------------------
-// parseDate( date_string [, prefer_euro_format] )
-//
-// This function takes a date string and tries to match it to a
-// number of possible date formats to get the value. It will try to
-// match against the following international formats, in this order:
-// y-M-d MMM d, y MMM d,y y-MMM-d d-MMM-y MMM d
-// M/d/y M-d-y M.d.y MMM-d M/d M-d
-// d/M/y d-M-y d.M.y d-MMM d/M d-M
-// A second argument may be passed to instruct the method to search
-// for formats like d/M/y (european format) before M/d/y (American).
-// Returns a Date object or null if no patterns match.
-// ------------------------------------------------------------------
-function parseDate(val) {
- var preferEuro=(arguments.length==2)?arguments[1]:false;
- generalFormats=new Array('y-M-d','MMM d, y','MMM d,y','y-MMM-d','d-MMM-y','MMM d');
- monthFirst=new Array('M/d/y','M-d-y','M.d.y','MMM-d','M/d','M-d');
- dateFirst =new Array('d/M/y','d-M-y','d.M.y','d-MMM','d/M','d-M');
- var checkList=new Array('generalFormats',preferEuro?'dateFirst':'monthFirst',preferEuro?'monthFirst':'dateFirst');
- var d=null;
- for (var i=0; i<checkList.length; i++) {
- var l=window[checkList[i]];
- for (var j=0; j<l.length; j++) {
- d=getDateFromFormat(val,l[j]);
- if (d!=0) { return new Date(d); }
- }
- }
- return null;
- }
generated by cgit v1.3 (git 2.53.0) at 2026-06-29 21:25:30 +0000