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XSLT: Convert Character entity to hex

Posted on 2006-11-02
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Last Modified: 2013-11-18
Hello,
I am trying to use  XSLT to convert character entities to hex. I am using Xalan/Xerces.

Example:-  ’ -> ’

Please suggest.

Thanks,
Kanishk.
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Question by:kanishkpanwar
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Expert Comment

by:kmartin7
ID: 17858953
Hmm, I don't think it can be done with pure XSLT, but I am interested to hear what others have to say.
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Expert Comment

by:CraigHarris
ID: 17862027
I'm pretty certain you can't do that in XSLT ... though Xerces does allow for callback functions which you might be able to use.

If you treat the XML as a string you could iterate over every character and easily replace those which need replacing though.
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Author Comment

by:kanishkpanwar
ID: 17862075
ohk.
I can use java's replaceAll method to get the job done. but I wanted a bit more scalable approach so that we don't have to rebuild the code incase a new special character is needed.
Any other suggestions? :)
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Accepted Solution

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CraigHarris earned 250 total points
ID: 17862165
Use a generic replacement method that will replace any char over #159 with &#ord(char);
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Expert Comment

by:Geert Bormans
ID: 17862202
Stream through your text nodes using a java function is about the best option you have
you can implement the entire character map in your java function,
then it would be scalable

If XSLT2.0 and Saxon instead of Xalan were an option,
it might be worthwhile looking at xsl:character-map

don't go recursing through your data using XSLT1 named templates.
You could do that... but here is the time that you should step outside with an extension function
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Author Comment

by:kanishkpanwar
ID: 17908482
I can use XSLT 2.0 and Saxon, if needed. Can I get some directions on that?
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Assisted Solution

by:Geert Bormans
Geert Bormans earned 250 total points
ID: 17908563
first you need to create a character map

<xsl:output use-character-maps="my_map"/>

<xsl:character-map name="my_map">
     <xsl:output-character char="’" string="&amp;#8217;"/>
     <xsl:output-character char="......
</character-map>

you can add as many output characters as you please

character maps apply to the whole document

That is all there is to it

cheers

Geert
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