[xquery-talk] Problems with string testing in if

[Sjur Nørstebø Moshagen]

Hello,

I'm new to this list, my apologies if this posting is outside the 
intended scope.

I need to query a set of localised documents identified with ISO 639-2 
3-letter codes, and I have written the function cited below to convert 
incoming locale strings to the equivalent 3-letter codes for the 
languages in question.

The problem is it does not work as expected. So far I have tried the 
following:

input output
----- ------
no    nor
se    nor
sme   nor

The function is:

(: Convert incoming locale strings to 3-letter language codes (ISO 639) 
:)
declare function fn:locale2lang($locale as xs:string) as xs:string
{
	let $lang := substring-before($locale,'_')
	return
		if ($lang = "no" or "nn" or "nb") then "nor"
		else if ($lang = "se") then "sme"
		else if ($lang = "sv") then "swe"
		else if ($lang = "fi") then "fin"
		else if ($lang = "en") then "eng"
		else if ($lang = "smi") then "sme"
		else if ($lang =	 "sme" or "sma" or "smn" or
						 "smj" or "sms" or "sme" or
						 "nor" or "swe" or "fin" or "eng") then $lang
		else "test" (: the default lang here later, now 'test' for debugging 
purposes :)
};

I'm running the query/function against/in eXist, but I believe it is 
more my understanding of XQuery than anything else that's missing, thus 
posting on this list. I would appreciate any help.

Regards,
Sjur N. Moshagen