StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POchange variable value in xsl
text
Body
copied!<p>I'm having a problem with XSL variables. I know that once declared, the value of the variable cant be changed.</p> <p>But I'm facing a rather strange problem and I cant possibly change the XML output, instead figure out if its possible with XSL itself.</p> <p>I'm using xsl:for-each to loop over some data in the XML.</p> <p>The data being looped can be of three types, say Type1, Type2 and Type3</p> <p>If it is of Type1, I'm calling a template to process that data. Inside the template I'm displaying a header. I need to print this header for the very first time I'm encountering this Type1 data only. After that I dont need to display this. </p> <p>I could've passed a parameter along with the call-template and set/unset it to determine if I need to print the header text. But as I understand, being a formatting language, the variable state is not preserved.</p> <p>Can you please provide your valuable suggestions on how to implement this(possibly without xml changes)?</p> <p>Edit:</p> <p>The test will work for the XML output mentioned by Patrice. But my XML is different. </p> <pre><code><doc> <item>foobar</item> <item>foo</item> <item>bar</item> <item>baz</item> <item>foo</item> <item>bar</item> </doc> </code></pre> <p>From this XML, I need to display a header for the very first time it encounters 'foo'. The order of items could be anything too. I cannot exactly predict when 'foo' will appear in the XML. </p> <p>Can you please bring up any suggestions?</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload