Subject: Re: [xsl] java Regex call From: Jeni Tennison <jeni@xxxxxxxxxxxxxxxx> Date: Thu, 10 Jul 2003 12:05:54 +0100 |
Hi Dave, > Why are there two lots of output please? The <xsl:analyze-string> element works through the string that you select (in this case 'ABC_PARA__PARA') and splits it into matching and non-matching substrings based on the regular expression that you use (in this case '(([^_]*)_PARA)'). Starting with the string: ABC_PARA__PARA the first substring that matches (([^_]*)_PARA) is: ABC_PARA__PARA ^^^^^^^^ This starts at the first character of the string, so there's no non-matching substring before it. The group [^_]* matches the substring 'ABC', and the remainder of the regular expression matches '_PARA'. The substring that's left after this first match is: __PARA The first substring of this that matches (([^_]*)_PARA) is: __PARA ^^^^^ This doesn't start at the first character, so there's a non-matching substring of '_' first. In the matching substring, the group [^_]* doesn't match anything (which is OK, the * means that that it doesn't have to), and the remainder of the regular expression matches '_PARA'. So the string is broken into two matching substrings ('ABC_PARA' and '_PARA') with a non-matching substring of '_' in between. And you get two lots of output because you're generating one for each of the matching substrings. Cheers, Jeni --- Jeni Tennison http://www.jenitennison.com/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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