Subject: Re: [xsl] How to split an RegEx into several lines for readability? From: David Carlisle <davidc@xxxxxxxxx> Date: Sun, 29 Apr 2007 21:42:27 +0100 |
Colin has mentioned the x flag (which allows you to add ignored white space, also, since you are using xsl:analyze-string, the regex is an attribute value template so you can define the regexp parts separately and drop them in using {}. For example this monster regex that matches tags in hmlparse regex="<(/?){$d:elem}\s*(({$d:attr})*)(/?)>|{$d:comment}|{$d:pi}|{$d:doctype}|{$d:cdata}|({$d:msif})"> the regex that match each type of markup are in separate variables for readability, they are only used once, in this expression. <xsl:variable name="d:attr" select="'(\i\c*)\s*(=\s*("[^"]*"|''[^'']*''|\c+))?\s*'"/> <xsl:variable name="d:elem" select="'(\i\c*)'"/> <xsl:variable name="d:comment" select="'<!\-\-[^\-]*(\-[^\-]+)*\-\->'"/> <xsl:variable name="d:pi" select="'<\?\i\c*[^>]*>'"/> <xsl:variable name="d:doctype" select="'<!D[^\[<>]*(\[[^\]]*\])?>'"/> <xsl:variable name="d:msif" select="'<!\[(end)?if.*?\]>'"/> <xsl:variable name="d:cdata" select="'<!\[CDATA(.|\s)*\]\]>'"/> David ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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