Re: [xsl] XSLT Regex for Matching Curly Braces

["David Carlisle d.p.carlisle@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

> \{{([^}}]+)\}}

That will be Ok as you do not have nested instances, {aaa{bbb}ccc}
it would match from the first { to the first } so {aaa{bbb}  which is
probably not intended. It is not possible in general (for arbitrary
depth) to match nested brackets with a regular expression (that's
essentially what is implied by "regular")

David

On Mon, 10 Jun 2019 at 19:20, Don Smith dsmith_lockesmith@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Thank you all,
>
> I used Gerrit's suggestion <xsl:analyze-string select="."
regex="\{{([^}}]+)\}}"> and it appears to work exactly as desired. Further
testing TBA.
>
> Thanks again,
>
> Don
>
> On bMondayb, bJuneb b10b, b2019b b12b:b32b:b41b
bPMb bCDT, gerrit.imsieke@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
>
> Agree, if expand-text is available (if one uses XSLT 3.0, for which there is
almost no reason not to).
>
> Sent from MailDroid
>
> -----Original Message-----
> From: "Michael Kay mike@xxxxxxxxxxxx"
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
> To: xsl-list <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Sent: Mon, 10 Jun 2019 18:21
> Subject: Re: [xsl] XSLT Regex for Matching Curly Braces
>
>
>
> On 10 Jun 2019, at 17:56, Imsieke, Gerrit, le-tex gerrit.imsieke@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> If you want to use xsl:analyze-string with XSLT 2.0 (or 3.0), you can put
the regex in a variable, like so:
>
>
>  <xsl:variable name="regex" as="xs:string" select="'\{([^}]+)\}'"/>
>
>
> I think it's even clearer to use
>
> <xsl:variable name="regex" as="xs:string"
expand-text="no">{([^}]+)\}</xsl:variable>
>
>
>
> This way you avoid complications with single and double quotes as well as
curly braces: the only characters that now have an XML or XSLT-defined special
meaning are "&" and "<", and these fortunately don't have special meanings in
regular expressions.
>
> Michael Kay
> Saxonica
>
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