[Mapserver-users] Regular expression.

[krung]

Hi all,

I have a problem about using regexp. My dbf shapefile has one column with number context. I would like to classify into range of number, e.g.

1000-1999, 10000-19999

How do I write this expression in map file?

CLASSITEM 'num_col'
CLASS
  EXPRESSION /.../  <- 1,000 to 1,999
  ......
END
CLASS
  EXPRESSION /.../ <- 10,000 to 19,999
  ....
END

I wouldn't like to use as:

  EXPRESSION ([num_col] >=1000 and [num_col] <=1999)
  ......
because it is very slow in rendering the image.

Thanks in advance.

Krung