[ms4w-users] msEvalRegex(): Regular expression error. String ()
failed expression test.
Jagdesh Singh
jagdesh_singh at hotmail.com
Thu Oct 11 13:13:57 EDT 2007
Dear All,
This is my first
question to the mailing list and I am afraid is a familiar one. I believe Mr. Tony
Gangemi last posted the same question in October 2006, but I am not sure if he
has made any progress since.
I am currently
doing the exercises from Bill Kropla’s book “Beginning MapServer: Open Source
GIS Development”. Like Mr. Gangemi, despite the book having a slant towards the
UNIX environment, I made the necessary adjustments to the map and html files to
suit my windows configuration.
However, I am
stuck at chapter 4 example. When I execute the source code in IE 6, I received
the familiar message “msEvalRegex(): Regular expression error. String () failed
expression test.” I am not sure what this mean, since the problem layer is not
specified in the error message returned to IE.
However, without
any luck, I attempted to debug the mapfile by removing one layer at a time to
try to isolate the problem layer, as suggested by Mr. Jeff McKenna. This did not solve my problem. What I
observed though is that even if the map file has one layer, the same error
message is returned to the browser. I am not sure if it is a problem with the
mapfile or the html file. Hopefully someone else has experienced this problem
and can provide some guidance. I have pasted below, for your reference, the
codes from the mapfile and the html files and the map layers I am using in the
example.
Look forward
to hearing from you.
Best regards,
Jag
MapLayer Source: http://nationalatlas.gov/atlasftp.html_
citiesx020.tar.gz
http://nationalatlas.gov/atlasftp.html#citiesx/citiesx020.tar.gz_
roadtrl020.tar.gz
http://nationalatlas.gov/atlasftp.html#citiesx/roadtrl020.tar.gz_
statesp020.tar.gz
http://nationalatlas.gov/atlasftp.html#citiesx/statesp020.tar.gz_
hydrogm020.tar.gz
http://nationalatlas.gov/atlasftp.html#citiesx/hydrogm020.tar.gz
urbanap020.tar.gz
http://nationalatlas.gov/atlasftp.html#citiesx/urbanap020.tar.gz_
MapFile
third.map
# This is our third map file
NAME "third"
UNITS DD
EXTENT -180.00 0.00 -60.00 90.00
SIZE 640 480
IMAGECOLOR 189 202 222
IMAGETYPE PNG
SHAPEPATH
"/ms4w/apps/firstmap/mapdata/"
FONTSET
"/ms4w/apps/firstmap/fonts/fonts.txt"
#####################################
# Symbol for drawing fat lines
#
SYMBOL
NAME "BigLine"
TYPE ELLIPSE
POINTS 1 1 END
END
#####################################
# Symbol for drawing dashed lines
#
SYMBOL
NAME "DashedLine"
TYPE ELLIPSE
POINTS 1 1 END
STYLE 10 10 END
END
#####################################
# Symbol for drawing spots
#
SYMBOL
NAME "Circle"
FILLED true
TYPE ellipse
POINTS 1 1 END
END
#####################################
# Web object
#
WEB
TEMPLATE
"c:/ms4w/apps/firstmap/htdocs/third.html"
IMAGEPATH "c:/ms4w/apps/firstmap/tmp"
IMAGEURL "c:/ms4w/tmp/"
END
#####################################
# Reference map
#
REFERENCE
IMAGE "c:/ms4w/apps/firstmap/htdocs/third_usaref.gif"
SIZE 300 225
EXTENT -180.00 0.00 -60.00 90.00
STATUS ON
COLOR -1 -1 -1
OUTLINECOLOR 255 0 0
END
#####################################
# Scalebar
#
SCALEBAR
LABEL
COLOR 0 0 0
ANTIALIAS true
SIZE small
END
POSITION lr
INTERVALS 5
STATUS embed
SIZE 144 5
STYLE 0
UNITS miles
BACKGROUNDCOLOR 255 0 0
IMAGECOLOR 255 255 255
COLOR 128 128 128
OUTLINECOLOR 0 0 255
TRANSPARENT off
END
#####################################
# Legend
#
LEGEND
STATUS on
IMAGECOLOR 230 230 230
LABEL
TYPE truetype
FONT "arial"
COLOR 0 0 0
SIZE 10
ANTIALIAS true
END
END
#####################################
# State boundaries layer - polygon (for
shading)
#
LAYER
NAME "states"
DATA "statesp020"
STATUS on
TYPE polygon
LABELCACHE on
LABELITEM "STATE"
CLASS
STYLE
COLOR 255 246 189
END
END
END
#####################################
# State boundaries layer - line (for fat
boundary)
#
LAYER
NAME "states"
DATA "statesp020"
STATUS on
TYPE line
LABELCACHE on
LABELITEM "STATE"
CLASS
NAME "State Line"
STYLE
SYMBOL "BigLine"
SIZE 2
COLOR 0 0 0
END
END
END
#####################################
# Urban areas layer
#
LAYER
NAME "urbanareas"
DATA "urbanap020"
STATUS on
TYPE polygon
LABELCACHE on
LABELITEM "NAME"
MAXSCALE 1999999
CLASS
STYLE
COLOR 212 192 100
OUTLINECOLOR 0 0 0
END
LABEL
TYPE truetype
FONT "arialbd"
SIZE 10
OUTLINECOLOR 255 255 255
COLOR 0 0 0
POSITION auto
END
END
END
#####################################
# hydrographic layer - lakes
#
LAYER
NAME "lakes"
DATA "hydrogp020"
STATUS on
TYPE polygon
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "FEATURE"
CLASS
EXPRESSION ('[FEATURE]' eq 'Lake')
STYLE
SIZE 1
COLOR 189 202 222
OUTLINECOLOR 0 0 0
END
LABEL
TYPE truetype
FONT "arial"
SIZE 8
OUTLINECOLOR 255 255 255
COLOR 0 0 0
MINDISTANCE 100
POSITION lr
MINFEATURESIZE auto
WRAP ' '
END
END
END
#####################################
# Road layer - interstates only at large
scale
#
LAYER
NAME "interstate1"
GROUP "roads"
DATA "roadtrl020"
STATUS on
TYPE line
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "FEATURE"
MINSCALE 7500001
CLASS
NAME "Interstate
Hwy"
EXPRESSION /Limited Access*/
STYLE
SYMBOL "BigLine"
SIZE 1
COLOR 0 0 0
END
LABEL
TYPE truetype
FONT "arial"
SIZE 8
OUTLINECOLOR 255 255 255
COLOR 0 0 0
MINDISTANCE 200
POSITION auto
ANGLE auto
MINFEATURESIZE 50
END
END
END
#####################################
# Road layer - interstates only
#
LAYER
NAME "interstate2"
GROUP "roads"
DATA "roadtrl020"
STATUS on
TYPE line
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "Feature"
MAXSCALE 7500000
CLASS
NAME "Interstate
Hwy"
EXPRESSION /Limited Access*/
STYLE
SYMBOL "BigLine"
SIZE 3
COLOR 0 0 0
END
OVERLAYSYMBOL "DashedLine"
OVERLAYSIZE 1
OVERLAYCOLOR 255 255 255
#
TEXT ([FEATURE],[NAME])
LABEL
TYPE truetype
FONT "arial"
SIZE 8
OUTLINECOLOR 255 255 255
COLOR 0 0 0
MINDISTANCE 200
POSITION auto
ANGLE auto
MINFEATURESIZE 50
WRAP ' '
END
END
END
#####################################
# Road layer - principal highways
#
LAYER
NAME "principal"
GROUP "roads"
DATA "roadtrl020"
STATUS on
TYPE line
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "Feature"
MAXSCALE 4000000
CLASS
NAME "Principal
Hwy"
EXPRESSION /Principal
Highway*/
STYLE
SYMBOL "BigLine"
SIZE 3
COLOR 197 129 65
END
OVERLAYSYMBOL "DashedLine"
OVERLAYSIZE 1
OVERLAYCOLOR 255 255 255
#
TEXT ([FEATURE],[NAME])
LABEL
TYPE truetype
FONT "arial"
MINFEATURESIZE 50
MINDISTANCE 100
ANGLE auto
COLOR 0 0 0
SIZE 8
END
END
END
#####################################
# Road layer - other through highways
#
LAYER
NAME "thru"
GROUP "roads"
DATA "roadtrl020"
STATUS on
TYPE line
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "Feature"
MAXSCALE 1000000
CLASS
NAME "Through Hwy"
EXPRESSION /Other Through*/
STYLE
SYMBOL "BigLine"
SIZE 3
COLOR 197 129 65
END
OVERLAYSYMBOL "DashedLine"
OVERLAYSIZE 1
OVERLAYCOLOR 0 255 0
LABEL
TYPE truetype
FONT "arial"
MINFEATURESIZE 100
MINDISTANCE 100
ANGLE auto
COLOR 0 0 0
SIZE 8
END
END
END
#####################################
# Road layer - other highways
#
LAYER
NAME "other"
GROUP "roads"
DATA "roadtrl020"
STATUS on
TYPE line
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "FEATURE"
MAXSCALE 500000
CLASS
NAME "Other Hwy"
EXPRESSION /Other Highway*/
STYLE
SYMBOL "BigLine"
SIZE 2
COLOR 197 129 65
END
LABEL
TYPE truetype
FONT "arial"
ANGLE auto # requires ttfonts
MINFEATURESIZE 100
MINDISTANCE 100
ANGLE auto
COLOR 0 0 0
SIZE 6
END
END
END
#####################################
# Hydrographic layer - streams & rivers
#
LAYER
NAME "rivers"
DATA "hydrogl020"
STATUS DEFAULT
TYPE line
LABELCACHE on
LABELITEM "NAME"
CLASSITEM "FEATURE"
MAXSCALE 1000000
CLASS
EXPRESSION ('[FEATURE]' eq 'Stream')
STYLE
SYMBOL "BigLine"
SIZE 1
COLOR 156 182 205
END
LABEL
TYPE truetype
FONT "arial"
COLOR 0 0 0
ANGLE auto
SIZE 7
ANTIALIAS true
END
END
END
#####################################
# Cities layer - State capitals and cities
pop. > 1000000
#
LAYER
NAME "majorcities"
DATA "citiesx020"
STATUS default
TYPE point
LABELITEM "NAME"
LABELCACHE on
LABELMAXSCALE 15000000
CLASSITEM "FEATURE"
MINSCALE 2000000
CLASS
NAME "State Capitals"
EXPRESSION /State*/
STYLE
SYMBOL "Circle"
SIZE 6
COLOR 0 255 0
END
LABEL
TYPE truetype
FONT "arialbd"
SIZE 9
POSITION auto
OUTLINECOLOR 255 255 255
COLOR 0 0 0
END
END
CLASS
EXPRESSION ([Pop_2000] > 1000000)
NAME "Major Cities"
STYLE
SYMBOL "Circle"
SIZE 10
COLOR 255 0 0
END
LABEL
TYPE truetype
FONT "arialbd"
SIZE 10
OUTLINECOLOR 255 255 255
COLOR 0 0 0
POSITION auto
END
END
END
#####################################
# Cities layer - Large cities, pop. < 1000000
#
LAYER
NAME "largecities"
DATA "citiesx020"
STATUS default
TYPE point
LABELCACHE on
LABELITEM "NAME"
MINSCALE 2000000
CLASS
EXPRESSION(([Pop_2000]>100000)and([Pop_2000]<=1000000))
NAME "Cities"
STYLE
SYMBOL "Circle"
SIZE 4
COLOR 255 0 0
BACKGROUNDCOLOR 255 0 0
END
LABEL
TYPE truetype
FONT "arialbd"
SIZE 8
POSITION auto
OUTLINECOLOR 255 255 255
COLOR 0 0 0
END
END
END
#####################################
# City layer - Cities
LAYER
NAME "cities"
DATA "citiesx020"
STATUS default
TYPE point
LABELCACHE on
LABELITEM "NAME"
LABELMAXSCALE 500000
MAXSCALE 2000000
CLASS
NAME "Small Cities"
EXPRESSION ([Pop_2000] < 100000)
STYLE
SYMBOL "Circle"
SIZE 3
COLOR 255 0 0
END
LABEL
TYPE truetype
FONT "arialbd"
SIZE 7
POSITION auto
OUTLINECOLOR 255 255 255
COLOR 0 0 0
END
END
END
#####################################
# State boundaries layer - annotation (for
labels)
#
LAYER
NAME "states"
DATA "statesp020"
STATUS on
TYPE annotation
LABELCACHE on
LABELITEM "STATE"
LABELMINSCALE 2000000
CLASS
LABEL
TYPE truetype
FONT "arialbd"
SIZE 14
OUTLINECOLOR 255 255 255
COLOR 0 0 0
MINDISTANCE 200
MINFEATURESIZE 10
END
END
END
END # mapfile
Html
Codes
Third.html
<html>
<head><title>Third
Map</title></head>
<body bgcolor="#E6E6E6">
<form name="the_form" method=GET
action="[program]">
<table width="100%" border="1">
<tr><td width="60%" rowspan="6">
<input name="img" type="image"
src="[img]"
width=640 height=480
border=2>
</td>
<td width="40%" align="center"
colspan="3">
<img SRC="[ref]" width=300 height=225 border=1>
</td>
</tr>
<tr><td align="left" colspan="3"><font
size="-1">
Map scale:     
1:[scale]</font></td></tr>
<tr><td align="left"
colspan="3"><font size="-1">
Click x,y:        [mapx],
[mapy]</font></td></tr>
<tr><td align="left"
colspan="3"><font size="-1">
Map Extent:  [mapext]</font></td></tr>
<tr><td><B><center>Legend</center></B></td>
<td><B><center>Navigation</center></B></td>
<td><B><center>Layers</center></B></td></tr>
<tr><td rowspan="2"><img
src="[legend]"></td>
<td align="left"><font
size="-1">
<input type=radio name=zoomdir value=0 [zoomdir_0_check]>
Pan<BR>
<input type=radio name=zoomdir value=1 [zoomdir_1_check]>
Zoom In<BR>
<input type=radio name=zoomdir value=-1 [zoomdir_-1_check]>
Zoom Out<BR>
<input type=text name=zoomsize size=1 value=[zoomsize]>
Size<BR>
<center><input type="submit"
value="Refresh"></center>
</td>
<td align="top">
<input type="checkbox" name="layer"
value="urbanareas"
[urbanareas_check]>
Urban Areas<BR>
<input type="checkbox" name="layer"
value="lakes" [lakes_check]>
Lakes<BR>
<input type="checkbox" name="layer"
value="states" [states_check]>
State Boundaries<BR>
<input type="checkbox" name="layer"
value="roads" [roads_check]>
Roads<BR></font>
</td>
</tr>
</table>
<input type="hidden" name="imgxy" value="320
240">
<input type="hidden" name="imgext" value="[mapext]">
<input type="hidden" name="map"
value="[map]">
<input type="hidden" name="program"
value="[program]">
<input type="hidden" name="map_web_imagepath"
value="[map_web_imagepath]">
</form>
</body>
</html>
third_i.html
<html>
<head> <title>MapServer Third
Map</title></head>
<body>
<form method=POST action="/cgi-bin/mapserv.exe">
<input type="submit" value="Click to
initialize">
<input type="hidden" name="program"
value="/cgi-bin/mapserv.exe">
<input type="hidden" name="map"
value=""c:/ms4w/apps/firstmap/htdocs/third.map">
<input type="hidden" name="map_web_imagepath"
value="/ms4w/tmp/">
<input type="hidden" name="mapext"
value="-180.00 0.00 -60.00 90.00">
<input type="hidden" name=zoomsize size=2 value=2>
<input type="hidden" name="layers"
value="urbanareas lakes states roads capitals">
</form>
</body>
</html>
Jagdesh Singh
Head - Forest Resources Information Unit
Guyana Forestry Commission
1 Water Street, Kingston, Georgetown,
Guyana, South America
Tel: + (592)
226-7271/4 (ext 232), Mobile: (592) 641-1451
Fax: + (592) 226-8956
Email: jagdesh_singh at hotmail.com
Website: www.forestry.gov.gy
_________________________________________________________________
Explore the seven wonders of the world
http://search.msn.com/results.aspx?q=7+wonders+world&mkt=en-US&form=QBRE
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