[mapserver-dev] Bug(s) with REGEX on 5.6.8?

[Lime, Steve D (DNR)]

The [] limitation is for regex within logical expressions only. There is no attribute binding
if you do pure regex:

  EXPRESSION /some regex/

Steve

________________________________________
From: Stephen Woodbridge [woodbri at swoodbridge.com]
Sent: Thursday, March 01, 2012 12:15 PM
To: Lime, Steve D (DNR)
Cc: mapserver-dev
Subject: Re: [mapserver-dev] Bug(s) with REGEX on 5.6.8?

On 3/1/2012 11:54 AM, Lime, Steve D (DNR) wrote:
> I don't believe ~* is a valid operator in 5.6.8. Use of square
> brackets is a known limitation and was fixed in 6.0 I believe.

I can work around the [] limitation, is there a binding for a regex in
the EXPRESSION (...) expression? or is this new for 6.0 also?

-Steve

> Steve
>
> ________________________________________ From:
> mapserver-dev-bounces at lists.osgeo.org
> [mapserver-dev-bounces at lists.osgeo.org] on behalf of Stephen
> Woodbridge [woodbri at swoodbridge.com] Sent: Thursday, March 01, 2012
> 10:30 AM To: mapserver-dev Subject: [mapserver-dev] Bug(s) with REGEX
> on 5.6.8?
>
> Hi All,
>
> This is beginning to look like a bug in expression handling on 5.6.8
> and/or the documentation.
>
> /u/www/cgi-bin/mapserv -v MapServer version 5.6.8 OUTPUT=GIF
> OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP OUTPUT=SVG SUPPORTS=PROJ
> SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV SUPPORTS=FRIBIDI
> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
> SUPPORTS=RGBA_PNG INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR INPUT=GDAL
> INPUT=SHAPEFILE
>
> I have tried all the following EXPRESSIONs and they all report an
> error int logfile.
>
> EXPRESSION ("[RTTYP]" ~* /U|S|C/) EXPRESSION ("[RTTYP]" ~*
> /(U|S|C)/) EXPRESSION ("[RTTYP]" ~* /^(U|S|C)/) EXPRESSION ("[RTTYP]"
> ~* /^[USC]/)
>
> EXPRESSION ("[RTTYP]" ~* "/U|S|C/") EXPRESSION ("[RTTYP]" ~*
> "/(U|S|C)/") EXPRESSION ("[RTTYP]" ~* "/^(U|S|C)/") EXPRESSION
> ("[RTTYP]" ~* "/^[USC]/")
>
> EXPRESSION ("[RTTYP]" ~* "U|S|C") EXPRESSION ("[RTTYP]" ~*
> "(U|S|C)") EXPRESSION ("[RTTYP]" ~* "^(U|S|C)") EXPRESSION ("[RTTYP]"
> ~* "^[USC]")
>
> So for example: EXPRESSION ("[RTTYP]" ~* /U|S|C/) generates:
> msEvalExpression: Expression parser error. Failed to parse
> expression: "M" ~* /U|S|C/
>
> EXPRESSION ("[RTTYP]" ~ "/U|S|C/") msEvalExpression: Expression
> parser error. Failed to parse expression: "M" ~ "/U|S|C/"
>
> EXPRESSION ("[RTTYP]" ~ "U|S|C") msEvalExpression: Expression parser
> error. Failed to parse expression: "M" ~ "U|S|C"
>
> And /[USC]/ and "/[USC]/" and variants reports: Failed to draw layer
> named 'roads'.; msDBFGetItemIndex(): DBASE file error. Item 'USC' not
> found.
>
> The documentation at:
> http://mapserver.org/mapfile/expressions.html#regular-expression-comparison
>
>  is very ambiguous with some examples of regex like 'by$' without
> the slashes and others with slashes.
>
> So I will write a bug on the doc, but I would like to include the
> correct syntax and since I can not find anything that works :(
>
> I'm probably missing something stupid, but if not this seems like a
> serious issue.
>
> -Steve W _______________________________________________
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>
>