Re: [xsl] Ungready Flag on Regex

Subject: Re: [xsl] Ungready Flag on Regex
From: "Christophe Marchand cmarchand@xxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 22 Oct 2020 21:14:02 -0000
For sure, regex are strange to me, even if I think they are really usefull.

So, when a regex king give me the right regex to do exactly what I want, 
I take this regex, and I adapt it to other similar use-cases.

My first problem was with comments, and I've adapted it to other kind of 
markers :

**bold**
$$code$$
@@link@@

The first two are Ok, but I can not make it run for the third case.

I join the XSL, a XSpec file, I have one scenario that fails. If someone 
could :

 1. give me the solution
 2. explain me why it was failing
 3. explain me why the solution works

it would be really a good thing.

In France, we now have a curfew at 9pm. There a lot of beer that can not 
be sold ; i may have a barrel for the guy who help me !

Best regards,
Christophe

Le 08/10/2020 C  16:54, Imsieke, Gerrit, le-tex gerrit.imsieke@xxxxxxxxx 
a C)critB :
>
>
> On 08.10.2020 16:26, Liam R. E. Quin liam@xxxxxxxxxxxxxxxx wrote:
>> You want [^*]*?
>
> Thinking of the brilliant potential for misunderstanding that this 
> answer entails.
>
> Christophe: I don't understand why you are asking me whether I want 
> [^*]*.
>
> Jokes aside, I think you need the non-greedy question mark modifier, 
> but not on [^*]*. You use it to make .* non-greedy. Otherwise it will 
> stop at the first '*' that it encounters.
>
> This works:
>
> <xsl:template name="xsl:initial-template">
> B  <doc>
> B B B  <xsl:analyze-string
> B B B B B  select="'Comments are delimited by **/* */** or prefixed by 
> **//**'"
> B B B B B  regex="\*\*(.*?)\*\*">
> B B B B B  <xsl:matching-substring>
> B B B B B B B  <b>
> B B B B B B B B B  <xsl:value-of select="regex-group(1)"/>
> B B B B B B B  </b>
> B B B B B  </xsl:matching-substring>
> B B B B B  <xsl:non-matching-substring>
> B B B B B B B  <xsl:value-of select="."/>
> B B B B B  </xsl:non-matching-substring>
> B B B  </xsl:analyze-string>
> B  </doc>
> </xsl:template>

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[demime 1.01d removed an attachment of type text/xml which had a name of format-text.xspec]

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