Re: [xsl] Use the xml:lang attribute to set the collation?

[David Carlisle <davidc@xxxxxxxxx>]

On 07/01/2013 15:28, Costello, Roger L. wrote:
> Hi Folks,
>
> Michael Kay wrote this response to a StackOverflow question [1]:
>
> Saxon's default collation is Unicode codepoint, which is fast but not
> smart. Setting lang="en" will immediately give you a smarter
> natural-language collation. There are then many options to refine it
> further.
>
> QUESTIONS 1. Does Michael's response mean that, to set the collation,
> I can use the xml:lang attribute instead of the default-collation
> attribute?

No, lang not xml:lang as an attribute of xsl:sort
> 2. Would you please give an example of a comparison where the result
> of the comparison is true when xml:lang="A" but false when
> xml:lang="B"? That is, what values would you place in here:

in the default unicode code point order A-Z come before a-z so
Zebra comes before apple

If lang="en" then a and A are before z and Z (in the collation that 
saxon uses in that case)

so Zebra comes after apple

> <Test xml:lang="__"> <xsl:value-of select=" '__' lt '__' " />
> </Test>

If you are using lt rather than xsl:sort I think you need to set the 
collation URI explicitly rather than use lang.
> /Roger
>
> [1]
> http://stackoverflow.com/questions/13052896/xslt-sort-edge-case-for-ascending-sort-by-element-name