[xsl] how to ask analyze-string for only one match?

Subject: [xsl] how to ask analyze-string for only one match?
From: Roger I Martin PhD <hypernexdev@xxxxxxxxxxxxxxx>
Date: Mon, 23 Jan 2006 15:51:46 -0500
I'm transforming svg. In particular path data noted by the d attribute.
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<path d="M 100 100 L 300 100 L 200 300 z"
fill="red" stroke="blue" stroke-width="3" />
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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.
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<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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