Subject: convert-date: suggestion and implementation From: "Clark C. Evans" <clark.evans@xxxxxxxxxxxxxxxxxxxx> Date: Mon, 4 Oct 1999 14:45:04 -0400 (EDT) |
I've found myself needing to convert between various date formats on a regular basis. Ideally there would be a function available in xpath that would allow this: convert-date( date-in <!-- Date string to be converted --> format-in <!-- Representation of incoming date string --> format-out <!-- Representation of outgoing date string --> ) So that: convert-date('19991004','yyyyMMdd','EEEE dd MMM yyyy') Gives: Monday 04 Oct 1999 For now, I've implemented it as an external function, via Java. Any suggestions? What is the chance of something like this being put into xslt or even xpath? Clark Oh yes, here is an implementation for jclark's wonderful xt! .... package com.clarkevans.xtk; import java.text.*; import java.util.*; public class DateConverter { public static String convert( String dateIn, // string of date to convert String formatIn, // format of incoming string String formatOut // format of outgoing string ) { try { if( "now" == dateIn ) { return (new SimpleDateFormat(formatOut).format(new Date())); } else { return (new SimpleDateFormat(formatOut)).format( (new SimpleDateFormat(formatIn)).parse( dateIn, new ParsePosition(0))); } } catch( Exception e ) { return ""; } } } /******** Here is a test stylesheet ************************** <xsl:stylesheet xmlns:xsl="http://www.w3.org/XSL/Transform/1.0" xmlns="http://www.w3.org/TR/REC-html40" result-ns=""> <xsl:template match="/"> <xsl:call-template name="convert-date"> <xsl:with-param name="input-date">19991003</xsl:with-param> </xsl:call-template> </xsl:template> <xsl:template name="convert-date"> <xsl:param name="output-format"> EEEE, d MMM yyyy </xsl:param> <xsl:param name="input-date">now</xsl:param> <xsl:param name="input-format">yyyyMMdd</xsl:param> <xsl:value-of xmlns:ts = "http://www.jclark.com/xt/java/com.clarkevans.xtk.DateConverter" select = "ts:convert(string($input-date), string($input-format), string($output-format))" /> </xsl:template> </xsl:stylesheet> <!-- Copied from java.text.SimpleDateFormat (c) 1999 Sun Microsystems Symbol Meaning Presentation Example ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~ G era designator (Text) AD y year (Number) 1996 M month in year (Text and Number) July and 07 d day in month (Number) 10 h hour in am/pm (1~12) (Number) 12 H hour in day (0~23) (Number) 0 m minute in hour (Number) 30 s second in minute (Number) 55 S millisecond (Number) 978 E day in week (Text) Tuesday D day in year (Number) 189 F day of week in month (Number) 2 (2nd Wed in July) w week in year (Number) 27 W week in month (Number) 2 a am/pm marker (Text) PM k hour in day (1~24) (Number) 24 K hour in am/pm (0~11) (Number) 0 z time zone (Text) Pacific Standard Time ' escape for text (Delimiter) '' single quote (Literal) ' Format Pattern Result ~~~~~~~~~~~~~~ ~~~~~~~~ "yyyy.MM.dd G 'at' hh:mm:ss z" ->> 1996.07.10 AD at 15:08:56 PDT "EEE, MMM d, ''yy" ->> Wed, July 10, '96 "h:mm a" ->> 12:08 PM "hh 'o''clock' a, zzzz" ->> 12 o'clock PM, Pacific Daylight Time "K:mm a, z" ->> 0:00 PM, PST "yyyyy.MMMMM.dd GGG hh:mm aaa" ->> 1996.July.10 AD 12:08 PM --> ************************************************************/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
RE: select-distinct in for-each ?, Kay Michael | Thread | Re: select-distinct in for-each ?, Edd Dumbill |
RE: A problem with [embedded templa, John Dreystadt | Date | RE: A problem with [embedded templa, Mike Brown |
Month |