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<div class="moz-cite-prefix">Hi Samuel,<br>
<br>
On 01/03/2015 19:56, Samuel Gougeon wrote:<br>
</div>
<blockquote cite="mid:54F360FA.9000404@free.fr" type="cite">
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charset=windows-1252">
<font face="Arial">Hello,<br>
<br>
Despite many trials, i am failing extracting the value of an
attribute with xmlXPath(). <br>
Here is an example:<br>
</font><tt><br>
text = ["<</tt><tt>main>"</tt><tt><br>
" <itag target=""valueA"" url=""valueB"" />"<br>
</tt><tt><tt> " <itag target=""valueA2""
url=""valueB2"" />"<br>
</tt></tt><tt><tt><tt> " <itag target=""valueA3""
url=""valueB3"" />"<br>
"</main>"<br>
];<br>
doc = xmlReadStr(text)<br>
<br>
</tt></tt></tt><font face="Arial">Now, we want to select all </font><tt><itag</tt><font
face="Arial"> entries for which the </font><tt>target</tt><font
face="Arial"> attribute has a given value (say </font><tt>valueA2</tt><font
face="Arial">), and for them, get the related </font><tt>url</tt><font
face="Arial"> value:<br>
<br>
</font><tt>-->e = xmlXPath(doc,
"//itag[@target=""valueA2""]") </tt><tt>// works:<br>
</tt><tt> e =</tt><tt><br>
</tt><tt>XML List</tt><tt><br>
</tt><tt>size: </tt><tt>1</tt><tt><br>
</tt><tt><br>
</tt></blockquote>
<br>
you got a list with one element<br>
<br>
<blockquote cite="mid:54F360FA.9000404@free.fr" type="cite"><tt> </tt><font
face="Arial">but </font><tt>e</tt><font face="Arial"> has no
attributes fields. So i cannot get its </font><tt>url </tt><font
face="Arial">contents:<br>
</font><tt>-->e.</tt><tt>name</tt><tt><br>
</tt><tt> ans = </tt><tt><br>
</tt><tt> itag </tt><tt><br>
</tt></blockquote>
<br>
e(1).name<br>
<br>
fyi e.name is a shortcut to get all the nodes name in the list.<br>
<br>
<blockquote cite="mid:54F360FA.9000404@free.fr" type="cite"><tt> </tt><tt><br>
</tt><tt>-->e.attributes</tt><tt><br>
</tt><tt> !--error 999 </tt><tt><br>
</tt><tt>%XMLSet_e: Unknown field: attributes</tt><tt><br>
</tt><tt><br>
</tt></blockquote>
<br>
e(1).attributes<br>
<br>
<blockquote cite="mid:54F360FA.9000404@free.fr" type="cite"><tt> </tt><font
face="Arial">How is it possible to do what we expect, whether it
is?<br>
Reading examples on the official xmlXPath webpage did not
help...<br>
<br>
Thanks for any hints<br>
Samuel<br>
<br>
</font></blockquote>
<br>
Best regards<br>
<br>
Calixte<br>
<br>
<blockquote cite="mid:54F360FA.9000404@free.fr" type="cite"><font
face="Arial"> </font> <br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Calixte Denizet
Software Development Engineer
-----------------------------------------------------------
Scilab Enterprises
143bis rue Yves Le Coz - 78000 Versailles, France
<a class="moz-txt-link-freetext" href="http://www.scilab-enterprises.com">http://www.scilab-enterprises.com</a></pre>
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