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POAdding up numbers depending on textual entries in XML using XSL
 

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  1. POAdding up numbers depending on textual entries in XML using XSL
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    <p>I have a XML like this:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?&gt; &lt;variablelist&gt; &lt;varinfo id="id-5"&gt; &lt;vardef&gt; &lt;name&gt;A&lt;/name&gt; &lt;init&gt; &lt;compoundinit type="composite"&gt; &lt;singleinit&gt;(unsigned char)6&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)0&lt;/singleinit&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(short)400&lt;/singleinit&gt; &lt;singleinit&gt;(short)600&lt;/singleinit&gt; &lt;singleinit&gt;(short)800&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(short)32767&lt;/singleinit&gt; &lt;singleinit&gt;(short)32767&lt;/singleinit&gt; &lt;singleinit&gt;(short)32767&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;/compoundinit&gt; &lt;/init&gt; &lt;/vardef&gt; &lt;/varinfo&gt; &lt;varinfo id="id-10"&gt; &lt;vardef&gt; &lt;name&gt;B&lt;/name&gt; &lt;init&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(uint32 const volatile)0U&lt;/singleinit&gt; &lt;singleinit&gt;(uint32 const volatile)0U&lt;/singleinit&gt; &lt;singleinit&gt;(uint32 const volatile)0U&lt;/singleinit&gt; &lt;singleinit&gt;(uint32 const volatile)0U&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;/init&gt; &lt;/vardef&gt; &lt;/varinfo&gt; &lt;varinfo id="id-200"&gt; &lt;vardef&gt; &lt;name&gt;C&lt;/name&gt; &lt;init&gt; &lt;compoundinit type="composite"&gt; &lt;singleinit&gt;(unsigned char)12&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)12&lt;/singleinit&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(short)900&lt;/singleinit&gt; &lt;singleinit&gt;(short)1000&lt;/singleinit&gt; &lt;singleinit&gt;(short)1240&lt;/singleinit&gt; &lt;singleinit&gt;(short)1750&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(short)512&lt;/singleinit&gt; &lt;singleinit&gt;(short)640&lt;/singleinit&gt; &lt;singleinit&gt;(short)853&lt;/singleinit&gt; &lt;singleinit&gt;(short)1067&lt;/singleinit&gt; &lt;singleinit&gt;(short)1280&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;compoundinit type="array"&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;compoundinit type="array"&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;singleinit&gt;(unsigned char)153&lt;/singleinit&gt; &lt;/compoundinit&gt; &lt;/compoundinit&gt; &lt;/compoundinit&gt; &lt;/init&gt; &lt;/vardef&gt; &lt;/varinfo&gt; &lt;/variablelist&gt; </code></pre> <p>What I want to do is to add up used bits of the variables. So variable A for example consists of 2 "unsigned char" and 6 "short" datatypes. Lets assume "short" equals 16 bit and "char" 8 bit. Thus variable A has 112 bit (6*16 + 2*8).</p> <p>How would a XSLT file look like if I wanted the following output:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;variablelist&gt; &lt;varinfo&gt; &lt;name&gt;A&lt;/name&gt; &lt;size&gt;112&lt;/size&gt; &lt;/varinfo&gt; &lt;varinfo&gt; &lt;name&gt;B&lt;/name&gt; &lt;size&gt;128&lt;/size&gt; &lt;/varinfo&gt; &lt;varinfo&gt; &lt;name&gt;C&lt;/name&gt; &lt;size&gt;224&lt;/size&gt; &lt;/varinfo&gt; &lt;/variablelist&gt; </code></pre> <p>At the moment I at least managed to achieve the following output:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;variablelist&gt; &lt;varinfo&gt; &lt;name&gt;A&lt;/name&gt; &lt;size&gt;(unsigned char)6(unsigned char)0(short)400(short)600(short)800(short)32767(short)32767(short)32767&lt;/size&gt; &lt;/varinfo&gt; &lt;varinfo&gt; &lt;name&gt;B&lt;/name&gt; &lt;size&gt;(uint32 const volatile)0U(uint32 const volatile)0U(uint32 const volatile)0U(uint32 const volatile)0U&lt;/size&gt; &lt;/varinfo&gt; &lt;varinfo&gt; &lt;name&gt;C&lt;/name&gt; &lt;size&gt;(unsigned char)12(unsigned char)12(short)900(short)1000(short)1240(short)1750(short)512(short)640(short)853(short)1067(short)1280(unsigned char)153(unsigned char)153(unsigned char)153(unsigned char)153(unsigned char)153(unsigned char)153(unsigned char)153(unsigned char)153&lt;/size&gt; &lt;/varinfo&gt; &lt;/variablelist&gt; </code></pre> <p>With this transform code:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"&gt; &lt;xsl:output method="xml" indent="yes" /&gt; &lt;xsl:template match="/"&gt; &lt;variablelist&gt; &lt;xsl:apply-templates select="/variablelist"/&gt; &lt;/variablelist&gt; &lt;/xsl:template&gt; &lt;xsl:template match="variablelist"&gt; &lt;xsl:for-each select="varinfo"&gt; &lt;varinfo&gt; &lt;xsl:choose&gt; &lt;xsl:when test="not(current()/vardef/init)"&gt; &lt;!-- ... --&gt; &lt;/xsl:when&gt; &lt;xsl:when test="current()/vardef/init"&gt; &lt;xsl:choose&gt; &lt;xsl:when test="current()/vardef/init/singleinit"&gt; &lt;!-- ... --&gt; &lt;/xsl:when&gt; &lt;xsl:otherwise&gt; &lt;name&gt; &lt;xsl:value-of select="current()/vardef/name/."/&gt; &lt;/name&gt; &lt;size&gt; &lt;xsl:for-each select="current()/vardef/init//node()"&gt; &lt;xsl:if test="name() = 'singleinit'"&gt; &lt;xsl:value-of select="."/&gt; &lt;/xsl:if&gt; &lt;/xsl:for-each&gt; &lt;/size&gt; &lt;/xsl:otherwise&gt; &lt;/xsl:choose&gt; &lt;/xsl:when&gt; &lt;xsl:otherwise&gt; &lt;!-- ... --&gt; &lt;/xsl:otherwise&gt; &lt;/xsl:choose&gt; &lt;/varinfo&gt; &lt;/xsl:for-each&gt; &lt;/xsl:template&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p>For transformation of the strings to my numbers I would use something like this:</p> <pre><code>&lt;xsl:when test="contains((substring-before((current()/vardef/init/singleinit/.),')')),'char')"&gt; &lt;xsl:value-of select="'8'"/&gt; &lt;/xsl:when&gt; </code></pre> <p>Has anybody got an idea of how to solve my problem? I tried different ways via variables or parameters, but I was not successful so far.</p> <p>Thanks!</p> <p>PS.: First question asked here, hope I followed your netiquette correctly. And has somebody an idea of a better title?</p>
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