Standard Library

[Peter Haworth]

Good point, that would be a nice enhancement.

Pete
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On Tue, Aug 12, 2014 at 11:51 AM, Charles E Buchwald <charles at buchwald.ca>
wrote:

> Yes, but just having a more complete implementation of PCRE regex would
> make a big difference.
> For example, LC's regex does not include back references.
> Having the ability to use (PCRE compliant) back references would, I
> believe, in many case, eliminate the need for that array of matches.
> For example....
>
> From http://quality.runrev.com/show_bug.cgi?id=12439
>
> > The dictionary says "LiveCode implements regular expressions compatible
> with the PCRE library." Without back references the LC implementation is a
> rather limited subset of that library.
> >
> > Example:
> > I would expect to be able to do this in the message box:
> > put replaceText("abcd","(ab)(cd)","$2$1")
> > and get this:
> > "cdab"
> >
> > Instead I have to do this:
> > if matchText("abcd","(ab)(cd)",var1,var2) then put var2 & var1
> >
> > But this is a trivial example. If either my string to search or my
> pattern is slightly more complex, then what would be a trivial task with
> full PCRE compliant regex becomes comparatively complicated in LC.
>
> On 12 Aug 2014, at 3:56 AM, John Craig <john at splash21.com> wrote:
>
> > Agree - matchText and matchChunk would both benefit from the ability to
> specify an array to fill with matches - we don't always know exactly how
> many will appear ..
> >
> > http://quality.runrev.com/show_bug.cgi?id=11391
> >
> >
> > On 12/08/2014 02:12, Peter Haworth wrote:
> >> I've always kinda thought the return variable parm to matchText was a
> little strange as it relies on you knowing how many matches will be found
> in advance. It would be great if the returned variable could be an array
> keyed by the numeric match number, alike the variables you can supply to
> the some of the database functions.
> >
> >
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> --
> Charles E. Buchwald
> CEO/Director General
> Museografica Digital
> http://digital.museografica.com
>
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