[Qgis-developer] BUG? strpos("area",'.') doesn't work

[Mathieu Pellerin]

Or we could upgrade regex_match() to return an offset instead of a binary
false / true.

On Nov 7, 2016 7:17 PM, "Matthias Kuhn" <matthias at opengis.ch> wrote:

I haven't found any existing functionality. regexp_pos?

On 11/07/2016 01:12 PM, Mathieu Pellerin wrote:
> I ll take care of this over the weekend. What should the regexp function
> be called?
>
>
> On Nov 7, 2016 7:10 PM, "Mathieu Pellerin" <nirvn.asia at gmail.com
> <mailto:nirvn.asia at gmail.com>> wrote:
>
>     You read my mind. Big +1 from me.
>
>
>     On Nov 7, 2016 6:40 PM, "Matthias Kuhn" <matthias at opengis.ch
>     <mailto:matthias at opengis.ch>> wrote:
>
>         I wonder if we should change this for QGIS 3.0 and use
>         QString::indexOf
>         instead, while providing dedicated regexp functions.
>
>         What do you think, Mathieu?
>
>         Matthias
>
>         On 11/07/2016 12:26 PM, Mathieu Pellerin wrote:
>         > We should indicate in the function help that strpos is regexp
>         based.
>         >
>         >
>         > On Nov 7, 2016 6:23 PM, "Matthias Kuhn" <matthias at opengis.ch
>         <mailto:matthias at opengis.ch>
>         > <mailto:matthias at opengis.ch <mailto:matthias at opengis.ch>>>
wrote:
>         >
>         >     Hi,
>         >
>         >     strpos is based on regexp, a '.' matches any character.
>         >     To let the engine treat a . as such you need to prefix it
>         with a
>         >     double-backslash.
>         >
>         >     strpos(to_string("area"), '\\.')
>         >
>         >     Regards
>         >     Matthias
>         >
>         >
>         >     On 11/07/2016 12:07 PM, Elstermann, Mike wrote:
>         >     > Hi,
>         >     >
>         >     >
>         >     >
>         >     > “area” is a double-field with values e. g. 213.1234,
>         43215.3456, …
>         >     >
>         >     >
>         >     >
>         >     > strpos("area",'.') gives only value 1 return :-(
>         >     >
>         >     > strpos(to_string("area"),'.') gives only value 1 return
:-(
>         >     >
>         >     >
>         >     >
>         >     > This error exits only by ‘.’, other search-strings e. g.
>         ‘12’, ‘1’, …
>         >     > work fine
>         >     >
>         >     >
>         >     >
>         >     > Our workarround works fine.
>         >     >
>         >     >
>         >     >
>         >     > strpos( replace( to_string( "area" ), '.', ',' ), ',' )
>         >     >
>         >     >
>         >     >
>         >     > Is this a bug with ‘.’?
>         >     >
>         >     >
>         >     >
>         >     > best regards, mikeE.
>         >     >
>         >     >
>         >     >
>         >     >
>         >     >
>         >     >
>         >     >
>         >     > _______________________________________________
>         >     > Qgis-developer mailing list
>         >     > Qgis-developer at lists.osgeo.org
>         <mailto:Qgis-developer at lists.osgeo.org>
>         <mailto:Qgis-developer at lists.osgeo.org
>         <mailto:Qgis-developer at lists.osgeo.org>>
>         >     > List info:
>         http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>
>         >     <http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>>
>         >     > Unsubscribe:
>         >     http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>
>         >     <http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>>
>         >     >
>         >     _______________________________________________
>         >     Qgis-developer mailing list
>         >     Qgis-developer at lists.osgeo.org
>         <mailto:Qgis-developer at lists.osgeo.org>
>         <mailto:Qgis-developer at lists.osgeo.org
>         <mailto:Qgis-developer at lists.osgeo.org>>
>         >     List info:
>         http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>
>         >     <http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>>
>         >     Unsubscribe:
>         http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>
>         >     <http://lists.osgeo.org/mailman/listinfo/qgis-developer
>         <http://lists.osgeo.org/mailman/listinfo/qgis-developer>>
>         >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20161107/ccbc1130/attachment-0001.html>