One way to do this is to write your analyze-string to process all the
matches, put the result in a sequence-valued variable, and select the first
item in that resulting sequence.
<xsl:variable name="s" as="xs:string*">
<xsl:analyze-string select="$d-path"
regex="((\-?(\.|\d)+)(,| )+(\-?(\.|\d)+)){{1}}">
<xsl:matching-substring>
<xsl:sequence select="."/>
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:variable>
<xsl:analyze-string select="$s[1]">
regex="((\-?(\.|\d)+)(,| )+(\-?(\.|\d)+)){{1}}">
<xsl:matching-substring>
currentX=<xsl:value-of select="regex-group(2)"/>f;
currentY=<xsl:value-of select="regex-group(5)"/>f;
</xsl:matching-substring>
</xsl:analyze-string>
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Roger I Martin PhD [mailto:hypernexdev(_at_)hypernexinc(_dot_)com]
Sent: 23 January 2006 20:52
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] how to ask analyze-string for only one match?
I'm transforming svg. In particular path data noted by the d
attribute.
-----
<path d="M 100 100 L 300 100 L 200 300 z"
fill="red" stroke="blue" stroke-width="3" />
----
In this example there are 3 matches 100 100, 300 100 and 200
300. The
following gives me all 3 but I want it to stop after the
first match.
Added a {1} for group 1 but that doesn't stop the rematch
from occuring.
-----
<xsl:template name="apply-absolute-point">
<xsl:param name="d-path" select="''"/>
<xsl:analyze-string select="$d-path"
regex="((\-?(\.|\d)+)(,| )+(\-?(\.|\d)+)){{1}}">
<xsl:matching-substring>
currentX=<xsl:value-of select="regex-group(2)"/>f;
currentY=<xsl:value-of select="regex-group(5)"/>f;
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:template>
----
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