use xlst to count intermediary elements - xslt

Question

How can I count intermediary elements? I think the solution to this is related to this question. Supposing I had something like this:
<?xml version="1.0" encoding="UTF-8"?>
<root>
<row>
<cell>Title</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
<cell>example additional cell</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
</row>
<row>
<cell>Title</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
</row>
<row>
<cell>Title</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
</row>
<row>
<cell>Title</cell>
</row>
<row>
<cell padding='true'>Chapter</cell>
</row>
</root>
And, applying a transformation like this:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="2.0">
<xsl:template match="/root">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="row">
<xsl:choose>
<!--these are the indented ones-->
<xsl:when test="cell/#padding">
<xsl:number
value="count(preceding-sibling::row[child::cell[1][#padding]]) + 1"
format="a. "/>
</xsl:when>
<xsl:otherwise>
<xsl:number
value="count(preceding-sibling::row[child::cell[1][not(#padding)]]) + 1"
format="1. "/>
</xsl:otherwise>
</xsl:choose>
<xsl:value-of select="cell/text()"/>
</xsl:template>
</xsl:stylesheet>
I'm getting this result:
1. Title
a. Chapter
b. Chapter
c. Chapter
2. Title
d. Chapter
3. Title
e. Chapter
f. Chapter
4. Title
g. Chapter
What I would like is to have the "sub" items restart their numbering. I just can't figure how change the axis to stop looking back at earlier elements.
I was looking to have the "chapters" counted. So:
1. Title
a. Chapter
b. Chapter
c. Chapter
2. Title
a. Chapter
3. Title
a. Chapter
b. Chapter
4. Title
a. Chapter

Answer 1

I would suggest you try it this way:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" encoding="UTF-8" />
<xsl:strip-space elements="*"/>
<xsl:template match="/root">
<xsl:apply-templates select="row[not(cell/#padding)] | row/cell[#padding]"/>
</xsl:template>
<xsl:template match="row">
<xsl:number count="row[not(cell/#padding)]" format="1. "/>
<xsl:value-of select="cell"/>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="cell">
<xsl:number count="cell[#padding]" level="any" from="row[not(cell/#padding)]" format=" a. "/>
<xsl:value-of select="."/>
<xsl:text>
</xsl:text>
</xsl:template>
</xsl:stylesheet>