Is it possible to have a for-each in which the counter is an attribute value (not a node list)?
Here is what I am trying to do, handling colspan in tables (doesn't work):
<xsl:for-each select=".//tr[1]//td">
<xsl:choose>
<xsl:when test="#colspan">
<xsl:for-each select="#colspan">
<fo:table-column/>
</xsl:for-each>
</xsl:when>
<xsl:otherwise><fo:table-column/></xsl:otherwise>
</xsl:choose>
</xsl:for-each>
Thanks!
In XSLT 2.0:
<xsl:for-each select="1 to xs:integer(#colspan)">
<fo:table-column/>
</xsl:for-each>
In XSLT 1.0:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="table[#colspan]">
<fo:table>
<xsl:call-template name="generate"/>
</fo:table>
</xsl:template>
<xsl:template name="generate">
<xsl:param name="pTimes" select="#colspan"/>
<xsl:if test="$pTimes > 0">
<fo:table-column/>
<xsl:call-template name="generate">
<xsl:with-param name="pTimes" select="$pTimes -1"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied on the following XML document:
<table colspan="3"/>
the wanted, correct result is produced:
<fo:table xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:table-column/>
<fo:table-column/>
<fo:table-column/>
</fo:table>
Related
This is my template (a simplification of a real situation):
<xsl:template name="i">
<xsl:param name="args"/>
<xsl:for-each select="$args/*">
<xsl:value-of select="."/>
</xsl:for-each>
</xsl:template>
I call it like this:
<xsl:template match="f">
<xsl:call-template name="i">
<xsl:with-param name="args"/>
<a><xsl:value-of select="./#one"/></a>
<a><xsl:value-of select="./#two"/></a>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
Basically, I create artificial nodes <a/>, which looks ugly to me. Is there a better way?
My example would use functions but I have done both:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:mf="http://example.com/mf"
exclude-result-prefixes="#all"
version="3.0">
<xsl:function name="mf:f1" as="text()">
<xsl:param name="items" as="item()*"/>
<xsl:value-of select="$items"/>
</xsl:function>
<xsl:output method="xml" indent="yes"/>
<xsl:template match="foo">
<function-example>
<xsl:sequence select="mf:f1((#one, #two))"/>
</function-example>
<template-example1>
<xsl:call-template name="h">
<xsl:with-param name="args" select="#one, #two"/>
</xsl:call-template>
</template-example1>
<template-example2>
<xsl:call-template name="i">
<xsl:with-param name="args" select="#one, #two"/>
</xsl:call-template>
</template-example2>
</xsl:template>
<xsl:template name="h">
<xsl:param name="args"/>
<xsl:value-of select="$args"/>
</xsl:template>
<xsl:template name="i">
<xsl:param name="args"/>
<xsl:for-each select="$args">
<xsl:value-of select="."/>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
transforms
<foo one="1" two="2"/>
into
<function-example>1 2</function-example>
<template-example1>1 2</template-example1>
<template-example2>12</template-example2>
https://xsltfiddle.liberty-development.net/jyfAiD9
Of course, for the sole xsl:value-of use, if you don't want to have the default space separator between the args values, use xsl:value-of separator="".
Consider the following simple example:
XML
<f one="alpha" two="bravo"/>
template call
<xsl:template match="f">
<xsl:call-template name="i">
<xsl:with-param name="args" select="#one, #two"/>
</xsl:call-template>
</xsl:template>
template execution
<xsl:template name="i">
<xsl:param name="args"/>
<xsl:for-each select="$args">
<xsl:value-of select="."/>
</xsl:for-each>
</xsl:template>
Demo: https://xsltfiddle.liberty-development.net/93PXKr2
I'm trying to create an XSL 2.0 template, which I would be able to call with a few <xsl:with-param/> values, all of them bound to the same <xsl:param>. In other words, I'm looking for a variadic template or its best alternative. Can you suggest some?
ps. This is what I came up with:
<xsl:template name="i">
<xsl:param name="args"/>
<xsl:for-each select="$args/*">
<xsl:value-of select="."/>
</xsl:for-each>
</xsl:template>
Then, I'm calling it like this:
<xsl:template match="f">
<xsl:call-template name="i">
<xsl:with-param name="args"/>
<a><xsl:value-of select="./#one"/></a>
<a><xsl:value-of select="./#two"/></a>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
There are many ways to do this, below are just three of them:
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:param name="pParams" select="3,5,15,22,7"/>
<xsl:param name="pParams2" select="'3,5,15,22,7'"/>
<xsl:param name="pParams3" select="/*/*[1], /*/*[2], /*/*[3] "/>
<xsl:template match="/*">
<xsl:for-each select="$pParams">
<xsl:sequence select=". * 2"/>
</xsl:for-each>
<xsl:value-of select="'
'"/>
<xsl:for-each select="tokenize($pParams2, ',')">
<xsl:sequence select="number(.) * 2"/>
</xsl:for-each>
<xsl:value-of select="'
'"/>
<xsl:for-each select="$pParams3">
<xsl:sequence select="name(.)"/>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied on this XML document:
<t>
<a/>
<b/>
<c/>
</t>
the wanted result is produced:
6 10 30 44 14
6 10 30 44 14
a b c
i have a xml like,
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>xxx</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">ABC/DEF/123</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>yyy</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">LMN/OPQ/123</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>mmm</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">XYZ/GHY/456</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>nnn</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">AJK/UTL/456</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
My xslt,
<xsl:template name="substring-after-last">
<xsl:param name="string" />
<xsl:param name="delimiter" />
<xsl:choose>
<xsl:when test="contains($string, $delimiter)">
<xsl:call-template name="substring-after-last">
<xsl:with-param name="string"
select="substring-after($string, $delimiter)" />
<xsl:with-param name="delimiter" select="$delimiter" />
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:for-each select="select="//DESIGN-FUNCTION-PROTOTYPE/ea:TYPE-TREF[#TYPE='DESIGN-FUNCTION-TYPE']">
<xsl:variable name="myVar" select="current()"/>
<xsl:variable name="taskName" select="../ea:SHORT-NAME"/>
<xsl:variable name="Var7">
<xsl:call-template name="substring-after-last">
<xsl:with-param name="string" select="$myVar" />
<xsl:with-param name="delimiter" select="'/'" />
</xsl:call-template>
</xsl:variable>
<varoutput>
<xsl:value-of select="$Var7"/>
</varoutput>
</xsl:for-each>
My intention here is to iterate all the 'DESIGN-FUNCTION-PROTOTYPE' elements and display the sub-string of 'TYPE-TREF' value, but if a sub-string of 'TYPE-TREF' value has already been read..i must skip that element.
Expected output,
123
456
And Not,
123
123
456
456
In general I should consider only the first occurrence and skip the rest.
To do this in pure XSLT 1.0, without relying on processor-specific extensions, you could do:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="k1" match="DESIGN-FUNCTION-PROTOTYPE" use="substring-after(substring-after(TYPE-TREF, '/'), '/')"/>
<xsl:template match="/Root">
<root>
<xsl:for-each select="DESIGN-FUNCTION-PROTOTYPE[count(. | key('k1', substring-after(substring-after(TYPE-TREF, '/'), '/'))[1]) = 1]">
<varoutput>
<xsl:value-of select="substring-after(substring-after(TYPE-TREF, '/'), '/')" />
</varoutput>
</xsl:for-each>
</root>
</xsl:template>
</xsl:stylesheet>
Demo: https://xsltfiddle.liberty-development.net/bFN1y9s
This is of course assuming that the value you're after is always the third "token" in TYPE-TREF. Otherwise you would have to do something similar to your attempt:
XSLT 1.0 + EXSLT node-set() function
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
exclude-result-prefixes="exsl" >
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:key name="k1" match="value" use="."/>
<xsl:template match="/Root">
<!-- EXTRACT VALUES -->
<xsl:variable name="values">
<xsl:for-each select="DESIGN-FUNCTION-PROTOTYPE">
<value>
<xsl:call-template name="last-token">
<xsl:with-param name="text" select="TYPE-TREF"/>
</xsl:call-template>
</value>
</xsl:for-each>
</xsl:variable>
<!-- OUTPUT -->
<root>
<xsl:for-each select="exsl:node-set($values)/value[count(. | key('k1', .)[1]) = 1]">
<varoutput>
<xsl:value-of select="." />
</varoutput>
</xsl:for-each>
</root>
</xsl:template>
<xsl:template name="last-token">
<xsl:param name="text"/>
<xsl:param name="delimiter" select="'/'"/>
<xsl:choose>
<xsl:when test="contains($text, $delimiter)">
<!-- recursive call -->
<xsl:call-template name="last-token">
<xsl:with-param name="text" select="substring-after($text, $delimiter)"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$text"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
Demo: https://xsltfiddle.liberty-development.net/bFN1y9s/1
Assuming you use Xalan you should have access to the EXSLT str:split function (http://xalan.apache.org/xalan-j/apidocs/org/apache/xalan/lib/ExsltStrings.html#split(java.lang.String,%20java.lang.String):
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:str="http://exslt.org/strings" exclude-result-prefixes="str" version="1.0">
<xsl:key name="group" match="DESIGN-FUNCTION-PROTOTYPE/TYPE-TREF"
use="str:split(., '/')[last()]"/>
<xsl:template match="Root">
<xsl:for-each select="DESIGN-FUNCTION-PROTOTYPE/TYPE-TREF[generate-id() = generate-id(key('group', str:split(., '/')[last()])[1])]">
<varoutput>
<xsl:value-of select="str:split(., '/')[last()]"/>
</varoutput>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
Transforms
<?xml version="1.0" encoding="UTF-8"?>
<Root>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>xxx</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">ABC/DEF/123</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>yyy</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">LMN/OPQ/123</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>mmm</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">XYZ/GHY/456</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
<DESIGN-FUNCTION-PROTOTYPE>
<SHORT-NAME>nnn</SHORT-NAME>
<TYPE-TREF TYPE="DESIGN-FUNCTION-PROTOTYPE">AJK/UTL/456</TYPE-TREF>
</DESIGN-FUNCTION-PROTOTYPE>
</Root>
into
<?xml version="1.0" encoding="UTF-8"?><varoutput>123</varoutput><varoutput>456</varoutput>
with Xalan Java and Xalan Java XSLTC.
Or, as suggested in a comment, if you simply want to find the distinct values you can use set:distinct e.g.
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
xmlns:str="http://exslt.org/strings"
xmlns:set="http://exslt.org/sets"
exclude-result-prefixes="exsl str set"
version="1.0">
<xsl:template match="Root">
<xsl:variable name="split-values">
<xsl:for-each select="DESIGN-FUNCTION-PROTOTYPE/TYPE-TREF">
<xsl:copy-of select="str:split(., '/')[last()]"/>
</xsl:for-each>
</xsl:variable>
<xsl:copy-of select="set:distinct(exsl:node-set($split-values)/node())"/>
</xsl:template>
</xsl:stylesheet>
The transform I'm working on mergers two templates that has attributes that are space-separated.
An example would be:
<document template_id="1">
<header class="class1 class2" />
</document>
<document template_id="2">
<header class="class3 class4" />
</document>
And after the transform I want it to be like this:
<document>
<header class="class1 class2 class3 class4" />
</document>
How to achieve this?
I have tried (writing from memory):
<xsl:template match="/">
<header>
<xsl:attribute name="class">
<xsl:for-each select=".//header">
<xsl:value-of select="#class"/>
</xsl:for-each>
</xsl:attribute>
</header>
</xsl:template>
But that appends them all together, but I need them separated... and would be awesome if uniqued as well.
Thank you
Try this template, which simply adds a space before all the headers, apart from the first
<xsl:template match="/">
<header>
<xsl:attribute name="class">
<xsl:for-each select=".//header">
<xsl:if test="position() > 1">
<xsl:text> </xsl:text>
</xsl:if>
<xsl:value-of select="#class"/>
</xsl:for-each>
</xsl:attribute>
</header>
</xsl:template>
If you want your classes without repetitions, then use the following XSLT:
<?xml version="1.0" encoding="UTF-8" ?>
<xsl:transform version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">
<xsl:output method="xml" encoding="UTF-8" indent="yes" />
<xsl:template match="/">
<document>
<xsl:variable name="cls1">
<xsl:for-each select=".//header/#class">
<xsl:call-template name="tokenize">
<xsl:with-param name="txt" select="."/>
</xsl:call-template>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="cls" select="exsl:node-set($cls1)"/>
<header>
<xsl:attribute name="class">
<xsl:for-each select="$cls/*[not(preceding-sibling::* = .)]">
<xsl:value-of select="."/>
<xsl:if test="position() < last()">
<xsl:text> </xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:attribute>
</header>
</document>
</xsl:template>
<xsl:template name="tokenize">
<xsl:param name="txt"/>
<xsl:if test="$txt">
<xsl:if test="contains($txt, ' ')">
<cls>
<xsl:value-of select="substring-before($txt, ' ')"/>
</cls>
<xsl:call-template name="tokenize">
<xsl:with-param name="txt" select="substring-after($txt, ' ')"/>
</xsl:call-template>
</xsl:if>
<xsl:if test="not(contains($txt, ' '))">
<cls>
<xsl:value-of select="$txt"/>
</cls>
</xsl:if>
</xsl:if>
</xsl:template>
</xsl:transform>
In XSLT 1.0 it is much more difficult than in XSLT 2.0, but as you see,
it is possible.
Edit
A revised version using Muenchian grouping (inspired by comment from Michael):
<?xml version="1.0" encoding="UTF-8" ?>
<xsl:transform version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">
<xsl:output method="xml" encoding="UTF-8" indent="yes" />
<xsl:variable name="cls1">
<xsl:for-each select=".//header/#class">
<xsl:call-template name="tokenize">
<xsl:with-param name="txt" select="."/>
</xsl:call-template>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="cls2" select="exsl:node-set($cls1)"/>
<xsl:key name="classKey" match="cls" use="."/>
<xsl:template match="/">
<document>
<header>
<xsl:attribute name="class">
<xsl:for-each select="$cls2/*[generate-id() = generate-id(key('classKey', .)[1])]">
<xsl:value-of select="."/>
<xsl:if test="position() < last()">
<xsl:text> </xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:attribute>
</header>
</document>
</xsl:template>
<xsl:template name="tokenize">
<xsl:param name="txt"/>
<xsl:if test="$txt">
<xsl:if test="contains($txt, ' ')">
<cls>
<xsl:value-of select="substring-before($txt, ' ')"/>
</cls>
<xsl:call-template name="tokenize">
<xsl:with-param name="txt" select="substring-after($txt, ' ')"/>
</xsl:call-template>
</xsl:if>
<xsl:if test="not(contains($txt, ' '))">
<cls>
<xsl:value-of select="$txt"/>
</cls>
</xsl:if>
</xsl:if>
</xsl:template>
</xsl:transform>
I've a challenging problem and so far I wasn't able to solve.
Within my xlst I have variable which contains a string.
I need to add the following sequence [eol] to this string.
On a fix position namely every 65 characters
I thought to use a function or template to recursive add this charackter.
The reason is that the string length can variate in length.
<xsl:function name="funct:insert-eol" as="xs:string" >
<xsl:param name="originalString" as="xs:string?"/>
<xsl:variable name="length">
<xsl:value-of select="string-length($originalString)"/>
</xsl:variable>
<xsl:variable name="start" as="xs:integer">
<xsl:value-of select="1"/>
</xsl:variable>
<xsl:variable name="eol" as="xs:integer">
<xsl:value-of select="65"/>
</xsl:variable>
<xsl:variable name="newLines">
<xsl:value-of select="$length idiv number('65')"/>
</xsl:variable>
<xsl:for-each select="1 to $newLines">
<xsl:value-of select="substring($originalString, $start, $eol)" />
</xsl:for-each>
</xsl:function>
The more I write code the more variables I need to introduce. This is still my lack on understanding.
For example we want every 5 chars an [eol]
aaaaaaabbbbbbccccccccc
aaaaa[eol]aabbb[eol]bbbcc[eol]ccccc[eol]cc
Hope someone has a starting point for me..
Regards Dirk
Rather straight-forward and short -- no recursion is necessary (and can even be specified as a single XPath expression):
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text"/>
<xsl:param name="pLLength" select="5"/>
<xsl:template match="/*">
<xsl:variable name="vText" select="string()"/>
<xsl:for-each select="1 to string-length($vText) idiv $pLLength +1">
<xsl:value-of select="substring($vText, $pLLength*(position()-1)+1, $pLLength)"/>
<xsl:if test=
"not(position() eq last()
or position() eq last() and string-length($vText) mod $pLLength)">[eol]</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied on this XML document:
<t>aaaaaaabbbbbbccccccccc</t>
the wanted, correct result is produced:
aaaaa[eol]aabbb[eol]bbbcc[eol]ccccc[eol]cc
When this XML document is processed:
<t>aaaaaaabbbbbbcccccccccddd</t>
again the wanted, correct result is produced:
aaaaa[eol]aabbb[eol]bbbcc[eol]ccccc[eol]ccddd[eol]
You can treat it as a grouping problem, using for-each-group:
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:mf="http://example.com/mf"
exclude-result-prefixes="xs mf">
<xsl:function name="mf:insert-eol" as="xs:string">
<xsl:param name="input" as="xs:string"/>
<xsl:param name="chunk-size" as="xs:integer"/>
<xsl:value-of>
<xsl:for-each-group select="string-to-codepoints($input)" group-by="(position() - 1) idiv $chunk-size">
<xsl:if test="position() gt 1"><xsl:sequence select="'eol'"/></xsl:if>
<xsl:sequence select="codepoints-to-string(current-group())"/>
</xsl:for-each-group>
</xsl:value-of>
</xsl:function>
<xsl:template match="#* | node()">
<xsl:copy>
<xsl:apply-templates select="#* , node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="text">
<xsl:copy>
<xsl:sequence select="mf:insert-eol(., 5)"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
That stylesheet transforms
<root>
<text>aaaaaaabbbbbbccccccccc</text>
</root>
into
<root>
<text>aaaaaeolaabbbeolbbbcceolccccceolcc</text>
</root>
Try this one:
<?xml version='1.0' ?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xsl:param name="TextToChange" select="'aaaaaaabbbbbbccccccccc'"/>
<xsl:param name="RequiredLength" select="xs:integer(5)"/>
<xsl:template match="/">
<xsl:call-template name="AddText"/>
</xsl:template>
<xsl:template name="AddText">
<xsl:param name="Text" select="$TextToChange"/>
<xsl:param name="TextLength" select="string-length($TextToChange)"/>
<xsl:param name="start" select="xs:integer(1)"/>
<xsl:param name="end" select="$RequiredLength"/>
<xsl:choose>
<xsl:when test="$TextLength gt $RequiredLength">
<xsl:value-of select="substring($Text,$start,$end)"/>
<xsl:text>[eol]</xsl:text>
<xsl:call-template name="AddText">
<xsl:with-param name="Text" select="substring-after($Text, substring($Text,$start,$end))"/>
<xsl:with-param name="TextLength"
select="string-length(substring-after($Text, substring($Text,$start,$end)))"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$Text"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>