Encode local name like XmlConvert.EncodeLocalName in pure XQuery
Hello I’d like handle Xml-Files which have encoded node names like for example:
<CST_x002F_SOMETHING> .... </CST_x002F_SOMETHING> This node name should be decoded to CST/SOMETHING.
These node names were encoded for example via EncodeName. Is there any built-in XQuery-function to decode these names? Or do you have an encoding / decoding function?
XML Files produced by Oracle-DB use the same escaping mechanism.
Use fn:analyze-string() to split the string and match the _XXXX_ parts. When you encounter one of these parts, use bin:hex() to convert hex to binary, then bin:unpack-unsigned-integer() to convert the binary to an integer, then fn:codepoints-to-string() to convert the integer codepoint to a string.
The binary functions are documented at https://www.saxonica.com/documentation/index.html#!functions/expath-binary
Requires Saxon-PE or higher.
You could also use the new saxon:replace-with() function:
declare namespace bin = 'http://expath.org/ns/binary'; saxon:replace-with('CST_x002F_SOMETHING', '_x[0-9A-F]{4}_', function($s) {$s => substring(3, 4) => bin:hex() => bin:unpack-unsigned-integer(0,2) => codepoints-to-string()} outputs CST/SOMETHING
You can try the following.
XQuery
for $x in doc('input.xml')//CST_x002F_SOMETHING return rename node $x as "whateveryouneed" 
