[mapserver-users] v5.0.0 - CLASSITEM has double quote in fieldvalue

Daniel Morissette dmorissette at mapgears.com
Mon Jul 21 11:36:06 PDT 2008


Steve is right, I had only guessed that there might be a bug based on 
the problem description, but we've been unable to reproduce the issue 
that you report. I meant to reply on Friday asking for a testcase to 
reproduce but I forgot.

Daniel


Steve Lime wrote:
> While I'm glad it works (the regex should execute faster too) the other
> expression should
> have worked as well. Can you share the data you were using for some
> testing?
> 
> Steve
> 
>>>> On 7/18/2008 at 8:16 AM, in message
> <5a9686e80807180616n492ec21cma0170d2dfc9633b9 at mail.gmail.com>, "Mike
> Saunt"
> <mikesaunt at gmail.com> wrote:
>> Alexandre
>>
>> Excellent - that works!
>>
>> FYI - This is why I believe that Open Source can easily prevail even
> when
>> people put down the 'many eyes see more bugs' notion.  In another
> life I
>> worked with / as a partner for a proprietary company (now you can
> buy
>> franking machines from the same parent company wink wink nudge nudge)
> and
>> you'd never get this response so quickly and also having 'had it from
> the
>> horses mouth a.k.a. Developers' that there is an issue and this is
> the best
>> way around it.
>>
>> Thanks so much Alexandre
>>
>> Kind regards
>> Mike
>>
>>
>>
>>
>>
>> 2008/7/18 Alexandre Dube <adube at mapgears.com>:
>>
>>> I've been told by developers that there seems to be a bug when using
> " " in
>>> the expression parser...
>>>
>>> You should use a regular expression instead like the following :
>>>
>>> EXPRESSION /^Lane Closure$|^Multi-Way Signals$|^Road
> Closure$|^Stop\/Go
>>> Boards$|^Two-Way Signals$/
>>>
>>> See at : http://mapserver.gis.umn.edu/docs/howto/msexpressions 
>>>
>>> Mike Saunt wrote:
>>>
>>>> thanks Alexandre but unfortunately it didn't work
>>>>
>>>> Do you know if there is a way of forcing MapServer to read out the
> literal
>>>> string i.e. sort of like escaping it?  in .NET you can say
> @stringvariable
>>>> and it will ignore quotes inside etc?
>>>>
>>>> Cheers
>>>> Mike
>>>>
>>>> 2008/7/18 Alexandre Dube <adube at mapgears.com
> <mailto:adube at mapgears.com 
>>>>>> :
>>>>
>>>>    Hi Mike,
>>>>
>>>>     I'm not sure about that, but try eq instead of =
>>>>
>>>>     EXPRESSION ('[TRAFFIC_TYPE]' eq 'Lane Closure' OR ...
>>>>
>>>>    Best Regards,
>>>>    Alexandre
>>>>
>>>>    Mike Saunt wrote:
>>>>
>>>>        Hi All
>>>>
>>>>        I've got a MapFile that used to work fine in v4.10 but now
>>>>        fails in v5.0
>>>>
>>>>        Basically the CLASSITEM field has double quote in field
> value
>>>>        and this is then returning an error - msEvalExpression:
>>>>        Expression parser error. Failed to parse expression
>>>>
>>>>        The CLASS EXPRESSION looks like this
>>>>               CLASSITEM 'TRAFFIC_TYPE'          CLASS
>>>>                   EXPRESSION ('[TRAFFIC_TYPE]' = 'Lane Closure' OR
>>>>        '[TRAFFIC_TYPE]' = 'Multi-Way Signals' OR '[TRAFFIC_TYPE]'
> =
>>>>        'Road Closure' OR '[TRAFFIC_TYPE]' = 'Stop/Go Boards' OR
>>>>        '[TRAFFIC_TYPE]' = 'Two-Way Signals')
>>>>                   STYLE # Severe (RED)
>>>>                       SYMBOL 'triangle'
>>>>                       SIZE 9
>>>>                       COLOR 255 0 0
>>>>                       OUTLINECOLOR 0 0 0
>>>>                   END
>>>>               END
>>>>
>>>>        I've tried double quote vs. single quotes in the map file
> but
>>>>        to no avail
>>>>
>>>>        Anyone any thoughts?
>>>>
>>>>        Kind regards
>>>>        Mike
>>>>
>>>>
> ------------------------------------------------------------------------
>>>>        _______________________________________________
>>>>        mapserver-users mailing list
>>>>        mapserver-users at lists.osgeo.org 
>>>>        <mailto:mapserver-users at lists.osgeo.org>
>>>>        http://lists.osgeo.org/mailman/listinfo/mapserver-users 
>>>>
>>>>
>>>>
>>>>    --    Alexandre Dubé
>>>>    Mapgears
>>>>    www.mapgears.com <http://www.mapgears.com>
>>>>
>>>>
>>>>
> ------------------------------------------------------------------------
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>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org 
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users 
>>>>
>>>>
>>>
>>> --
>>> Alexandre Dubé
>>> Mapgears
>>> www.mapgears.com 
>>>
>>>
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-- 
Daniel Morissette
http://www.mapgears.com/



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