Subject: [xsl] regex grouping precedence. From: "Pawson, David" <David.Pawson@xxxxxxxxxxx> Date: Wed, 29 Sep 2004 08:22:34 +0100 |
http://www.w3.org/TR/xslt20/#element-matching-substring seems to say little about how nested grouping is numbered. (...) (....) ( ....) gives regex-group (1,2,3) OK. (...) (....)| ( ....) Is the third group counted as two due to the alternates? or still 3? (...) ( (..)(.).) ( ....) 1 2 3 4 5 is how I would expect to number them, but I'm totally unsure. Using xslt 2 to parse a plain text file; Input string 500748,500748 ,Set My People Free regex <xsl:for-each select='tokenize($f, "[\r]?\n")'> <r> <xsl:analyze-string flags="ix" regex="([0-9]{{6}}) (,,)|(,([0-9]{{6}})\p{{Zs}}+,(.*))$" select="."> <xsl:matching-substring> <bibno><xsl:value-of select="regex-group(1)"/></bibno> <ck><xsl:value-of select="normalize-space(regex-group(4))"/></ck> <ttl><xsl:value-of select="normalize-space(regex-group(5))"/></ttl> </xsl:matching-substring> <xsl:non-matching-substring> <n><xsl:value-of select="."/></n> </xsl:non-matching-substring> </xsl:analyze-string> </r> </xsl:for-each> output is <n>500748</n> <bibno/> <ck>500748</ck> <ttl>Set My People Free</ttl> Regards DaveP. **** snip here ***** -- DISCLAIMER: NOTICE: The information contained in this email and any attachments is confidential and may be privileged. If you are not the intended recipient you should not use, disclose, distribute or copy any of the content of it or of any attachment; you are requested to notify the sender immediately of your receipt of the email and then to delete it and any attachments from your system. RNIB endeavours to ensure that emails and any attachments generated by its staff are free from viruses or other contaminants. However, it cannot accept any responsibility for any such which are transmitted. We therefore recommend you scan all attachments. Please note that the statements and views expressed in this email and any attachments are those of the author and do not necessarily represent those of RNIB. RNIB Registered Charity Number: 226227 Website: http://www.rnib.org.uk
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