Quick fix - schematron - schematron

Question

I wrote a quickfix to insert a space between digit and string for example: 15MHz,20Hz
Schematron
<sch:pattern>
<sch:title>quick-fix</sch:title>
<sch:rule context="//text()">
<sch:report
test="matches(.,'(\d+)MHz') or matches(.,'(\d+)Hz')"
sqf:fix="groupfix" role="warning">Insert a space</sch:report>
<sqf:group id="groupfix">
<sqf:fix id="MHz-fix" use-when="contains(current(), 'MHz')">
<sqf:description>
<sqf:title>Insert space before MHz
</sqf:title>
</sqf:description>
<sqf:replace>
<xsl:analyze-string select="." regex="(\d+)MHz">
<xsl:matching-substring><xsl:value-of select="regex-group(1)"
/><xsl:value-of select="' MHz'"
/></xsl:matching-substring>
<xsl:non-matching-substring><xsl:value-of select="."
/></xsl:non-matching-substring>
</xsl:analyze-string>
</sqf:replace>
</sqf:fix>
<sqf:fix id="Hz-fix" use-when="contains(current(), 'Hz')">
<sqf:description>
<sqf:title>Insert space before Hz
</sqf:title>
</sqf:description>
<sqf:replace>
<xsl:analyze-string select="." regex="(\d+)Hz">
<xsl:matching-substring><xsl:value-of select="regex-group(1)"
/><xsl:value-of select="' Hz'"
/></xsl:matching-substring>
<xsl:non-matching-substring><xsl:value-of select="."
/></xsl:non-matching-substring>
</xsl:analyze-string>
</sqf:replace>
</sqf:fix>
</sqf:group>
</sch:rule>
</sch:pattern>
xml
<topic>
<p>15MHz</p>
</topic>
I am able to insert the space before MHz but the quick fix displays two options "Insert space before MHz" and "Insert space before Hz". I want only "Insert space before MHz" to be displayed.
Please help. Thanks

Answer 1

In stead of this:
<sqf:fix id="Hz-fix" use-when="contains(current(), 'Hz')">
do this:
<sqf:fix id="Hz-fix" use-when="matches(current(), '(\d+)Hz')">
Use in use-when also the matches function which checks for the given pattern.
Optional:
you can replace current() with . to save code.
In Oxygen you can use <sqf:stringReplace regex="(\d+)Hz" select="'$1 Hz'"/> instead of the complex <xsl:analyze-string>.