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<h1 class="title">reportGlobals.xq Example File</h1>
<span class="subtitle">xquery/globalVariables/reportGlobals.xq</span>
<!-- $$$xquery/globalVariables/reportGlobals.xq-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  (:
      This XQuery loads a GCC-XML file and reports the locations of all
      global variables in the original C++ source. To run the query,
      use the command line:

      xmlpatterns reportGlobals.xq -param fileToOpen=globals.gccxml -output globals.html

      &quot;fileToOpen=globals.gccxml&quot; binds the file name &quot;globals.gccxml&quot;
      to the variable &quot;fileToOpen&quot; declared and used below.
  :)

  declare variable $fileToOpen as xs:anyURI external;
  declare variable $inDoc as document-node() := doc($fileToOpen);

  (:
     This function determines whether the typeId is a complex type,
     e.g. QString. We only check whether it's a class. To be strictly
     correct, we should check whether the class has a non-synthesized
     constructor. We accept both mutable and const types.
  :)
  declare function local:isComplexType($typeID as xs:string) as xs:boolean
  {
      exists($inDoc/GCC_XML/Class[@id = $typeID])
      or
      exists($inDoc/GCC_XML/Class[@id = $inDoc/GCC_XML/CvQualifiedType[@id = $typeID]/@type])
  };

  (:
     This function determines whether the typeId is a primitive type.
  :)
  declare function local:isPrimitive($typeId as xs:string) as xs:boolean
  {
      exists($inDoc/GCC_XML/FundamentalType[@id = $typeId])
  };

  (:
     This function constructs a line for the report. The line contains
     a variable name, the source file, and the line number.
  :)
  declare function local:location($block as element()) as xs:string
  {
      concat($inDoc/GCC_XML/File[@id = $block/@file]/@name, &quot; at line &quot;, $block/@line)
  };

  (:
     This function generates the report. Note that it is called once
     in the &lt;body&gt; element of the &lt;html&gt; output.

     It ignores const variables of simple types but reports all others.
  :)
  declare function local:report() as element()+
  {
      let $complexVariables as element(Variable)* := $inDoc/GCC_XML/Variable[local:isComplexType(@type)]
      return if (exists($complexVariables))
             then (&lt;p xmlns=&quot;http://www.w3.org/1999/xhtml/&quot;&gt;Global variables with complex types:&lt;/p&gt;,
                   &lt;ol xmlns=&quot;http://www.w3.org/1999/xhtml/&quot;&gt;
                      {
                          (: For each Variable in $complexVariables... :)
                          $complexVariables/&lt;li&gt;&lt;span class=&quot;variableName&quot;&gt;{string(@name)}&lt;/span&gt; in {local:location(.)}&lt;/li&gt;
                      }
                   &lt;/ol&gt;)
             else &lt;p xmlns=&quot;http://www.w3.org/1999/xhtml/&quot;&gt;No complex global variables found.&lt;/p&gt;

      ,

      let $primitiveVariables as element(Variable)+ := $inDoc/GCC_XML/Variable[local:isPrimitive(@type)]
      return if (exists($primitiveVariables))
             then (&lt;p xmlns=&quot;http://www.w3.org/1999/xhtml/&quot;&gt;Mutable global variables with primitives types:&lt;/p&gt;,
                   &lt;ol xmlns=&quot;http://www.w3.org/1999/xhtml/&quot;&gt;
                      {
                          (: For each Variable in $complexVariables... :)
                          $primitiveVariables/&lt;li&gt;&lt;span class=&quot;variableName&quot;&gt;{string(@name)}&lt;/span&gt; in {local:location(.)}&lt;/li&gt;
                      }
                   &lt;/ol&gt;)
             else &lt;p xmlns=&quot;http://www.w3.org/1999/xhtml/&quot;&gt;No mutable primitive global variables found.&lt;/p&gt;
  };

  (:
      This is where the &lt;html&gt; report is output. First
      there is some style stuff, then the &lt;body&gt; element,
      which contains the call to the \c{local:report()}
      declared above.
  :)
  &lt;html xmlns=&quot;http://www.w3.org/1999/xhtml/&quot; xml:lang=&quot;en&quot; lang=&quot;en&quot;&gt;
      &lt;head&gt;
          &lt;title&gt;Global variables report for {$fileToOpen}&lt;/title&gt;
      &lt;/head&gt;
      &lt;style type=&quot;text/css&quot;&gt;
          .details
          {{
              text-align: left;
              font-size: 80%;
              color: blue
          }}
          .variableName
          {{
              font-family: courier;
              color: blue
          }}
      &lt;/style&gt;

      &lt;body&gt;
          &lt;p class=&quot;details&quot;&gt;Start report: {current-dateTime()}&lt;/p&gt;
          {
              local:report()
          }
          &lt;p class=&quot;details&quot;&gt;End report: {current-dateTime()}&lt;/p&gt;
      &lt;/body&gt;

  &lt;/html&gt;

</pre>
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<!-- @@@xquery/globalVariables/reportGlobals.xq -->
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