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Re: [xsl] xsl:analyze-string and multiple matching groups

2012-02-01 09:07:30
Florent Georges wrote:

   Let's say I have a string of the form "a:b;c:d;" where there
can be any number of sub-parts of the form "x:y;", that I'd like
to parse using xsl:analyze-string.  With the following regex:

     ^(([a-z]):([a-z]);)+$

which matches indeed, I cannot use the regex-groups to retrieve
all values.  For instance the following:

     <xsl:analyze-string select="'a:b;c:d;'"
                         regex="^(([a-z]):([a-z]);)+$">
        <xsl:matching-substring>
           <group num="0" value="{ regex-group(0) }"/>
           <group num="1" value="{ regex-group(1) }"/>
           <group num="2" value="{ regex-group(2) }"/>

   Are my expectations wrong?  If yes why?  And if yes, is there
any general solution to this problem? (by "general", I mean not
recursing on the string and using substring on ';' because here
this is a simple delimiter)

Shouldn't it suffice to do

    <xsl:analyze-string select="'a:b;c:d;'"
                        regex="([a-z]):([a-z]);">
      <xsl:matching-substring>
        <!-- now access groups here -->
      </xsl:matching-substring>
    </xsl:analyze-string>

then matching-substring is "called" for every part of the form "x:y;".


--

        Martin Honnen --- MVP Data Platform Development
        http://msmvps.com/blogs/martin_honnen/

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