Re: [xsl] xslt 2.0 regex

On Sat, March 17, 2012 4:43 pm, davep wrote:

On 17/03/12 16:29, Tony Graham wrote:

On Sat, March 17, 2012 4:14 pm, davep wrote:
...

It's still not working

<xsl:variable name="NameStartChar.re" as="xs:string">
   &#x024;[A-Z]|_|[a-z] |
   [&#xC0;-&#xD6;] | [&#xD8;-&#xF6;] |
   [&#xF8;-&#x2FF;] | [&#x370;-&#x37D;] |
   [&#x37F;-&#x1FFF;] | [&#x200C;-&#x200D;] |
   [&#x2070;-&#x218F;] | [&#x2C00;-&#x2FEF;] |
   [&#x3001;-&#xD7FF;] | [&#xF900;-&#xFDCF;] |
   [&#xFDF0;-&#xFFFD;] | [&#x10000;-&#xEFFFF;]
</xsl:variable>

<xsl:variable name="NameChar.re"  as="xs:string"
          select="concat($NameStartChar.re,' |
- | \. | [0-9] |&#xB7; | [&#x0300;-&#x036F;] |
[&#x203F;-&#x2040;]')"/>


<xsl:variable name='Name.re'
          select='concat($NameStartChar.re,
"(", $NameChar.re,")*")'/>


Why not use '\i' and '\c' from
http://www.w3.org/TR/xmlschema-2/#charcter-classes?


For which range please Tony? Err....

\i includes : which is wrong?
\c looks good though! Ah no. Again it's NameChar from
http://www.w3.org/TR/2000/WD-xml-2e-20000814#NT-NameChar
which is more than allowed for xsl:variable @name?

From the definition of NCName later in the same document:


[\i-[:]][\c-[:]]*

Otherwise, you may want '(' and ')' around $NameStartChar.re in
$Name.re,
otherwise (to mix variable expansions) it looks like
'...|[&#x203F;-&#x2040;]($NameChar.re)*" and you'll only match
multi-character names when they begin with a character in the range
[&#x203F;-&#x2040;].


As I read it (or more accurately fail to read it correctly)
It's NameChar less :
followed by (Name less :)+

Simpler version [A-Za-z0-9]+ and the i18N additions,
but I can't get the simpler one working.

It's only matching on the first letter of a variable currently....


Because without extra parentheses around $NameStartChar.re, the
'($NameChar.re)*' part looks like it's part of the last alternative in
$NameStartChar.re, not something to come after $NameStartChar.re.

Regards,


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