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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Hi Steve, and thanks for the reply.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>I was under the impression that the CLASS expression did not
support SQL-type syntax, that only the FILTER expression did?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>I had originally tried using<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>EXPRESSION “orgid NOT LIKE ‘LADE%’”<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>and although no errors are indicated, no records are returned either.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>I just tried <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>EXPRESSION /^[^LADE]/<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>which does draw the other points, but I haven’t yet
counted the records to verify if the numbers add up or if that syntax excludes
some records. As I warned, regex neophyte! I am getting the impression it’s
even more complicated than it looks.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>However, the response from Steve Lime appears to have provided a
solution that works in this instance.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Thanks for the help!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>/Johan.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> mapserver-users-bounces@lists.osgeo.org
[mailto:mapserver-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Steve Grey<br>
<b>Sent:</b> Friday, July 23, 2010 9:47 AM<br>
<b>To:</b> mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> Re: [mapserver-users] CLASS EXPRESSION regex help?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Johan,<br>
<br>
You are having success looking for records that match a pattern starting with
'LADE' - similar to using 'LIKE' - but are getting stuck looking for records
matching a pattern that doesn't start with 'LADE'.<br>
<br>
Try an approach along the lines of NOT LIKE.<br>
<br>
Steve<br>
<br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal>On 23 July 2010 15:20, Johan Forsman <<a
href="mailto:Johan.Forsman@la.gov">Johan.Forsman@la.gov</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal>All:<br>
<br>
Regex neophyte, using MS 5.4.2 in FGS on Ubuntu Server 9.10, I wish to render
two classes based on content in a PostGIS field.<br>
<br>
For the first CLASS I want all records that start with "LADE", and
using<br>
<br>
NAME "LADE"<br>
EXPRESSION /^LADE.*/<br>
<br>
appears to return the expected records.<br>
<br>
However, for the second CLASS I want all records that DO NOT start with
"LADE", but using<br>
<br>
NAME "Other"<br>
EXPRESSION /^(?!LADE).*/<br>
<br>
does not return any records and the log contains<br>
<br>
msEvalExpression() error: Regular expression error. Invalid regular expression.<br>
<br>
Examples out in the ether all indicate that this "negative lookahead"
is supposed to do exactly what I want.<br>
<br>
What am I doing wrong in this instance?<br>
<br>
Thanks!<br>
/Johan.<br>
<br>
----------------------<br>
Johan Forsman<br>
Geologist<br>
Safe Drinking Water Program<br>
Louisiana Department of Health and Hospitals<br>
Office of Public Health<br>
Telephone: 225.342.7309<br>
Telefax: 225.342.7303<br>
<br>
<br>
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target="_blank">http://lists.osgeo.org/mailman/listinfo/mapserver-users</a><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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