Re: [XPath20] Decoding URIs

Colin Paul Adams wrote:

>    Christian> I see there is fn:encode-for-uri, but I cannot find its
>    Christian> counterpart.
>
>There's no need for one, I would have said.

Here's my real use case at hand:

Scenario: I get an XML document that links relatively to images besides
it using xlink:href. The images' names may contain diacritics.

Task 1: I must generate a plain text list of the names of the contained
images.

Task 2: Converting to HTML, I must fill the "title" and "name"
attributes of the <img> element with the name of the image file - user-
readable.

>You could write an xsl:function to do it.

If that is possible without having to resort to a custom extension
function as Michael Kay suggested earlier, I'd really love to see that.

I guess it probably is possible to decode a "%XX" character sequence
into the respective integer using the "Functions on Numeric Values" and
some <xsl:choose>. Then, I'd have to implement an UTF-8 decoder (might
also be possible, I guess) and then use fn:codepoints-to-string(). Hmm,
in case I'm bored this weekend...

>N.B. the result will not be a valid URI.

I know, as that is the whole point of my question: I want to *decode*
URI encoded (parts of) strings. :-)

Regards, Christian.