Subject: Re: [xsl] unpacking percent-escaped URI components From: "Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Mon, 7 Nov 2022 21:29:09 -0000 |
codepoints-to-string(.)Unpacking RFC 4122 percent-escaped strings for code points less than 256 is straightforward --
tokenize($value,'%')[normalize-space()] ! local:H2D(.) !
I wonder whether with Saxon PE or EE you can use e.g.
where local:H2D is a hex-digits-to-decimal-integer function.
When the escaped value goes above 255, as with U+201C and U+201D, bb, the escapes start being multi-octet UTF-8, so %E2%80%9C and %E2%80%9D.
Is there a useful way to turn those multi-octet escapes back into single characters in XPath or XSLT?
(tokenize($value,'%')[normalize-space()] ! local:H2D(.)) => saxon:octets-to-hexBinary() => saxon:hexBinary-to-string('UTF8')
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