--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/gis/geometry/regex.py	Tue May 25 02:43:45 2010 +0200
@@ -0,0 +1,12 @@
+import re
+
+# Regular expression for recognizing HEXEWKB and WKT.  A prophylactic measure
+# to prevent potentially malicious input from reaching the underlying C
+# library.  Not a substitute for good web security programming practices.
+hex_regex = re.compile(r'^[0-9A-F]+$', re.I)
+wkt_regex = re.compile(r'^(SRID=(?P<srid>\d+);)?'
+                       r'(?P<wkt>'
+                       r'(?P<type>POINT|LINESTRING|LINEARRING|POLYGON|MULTIPOINT|MULTILINESTRING|MULTIPOLYGON|GEOMETRYCOLLECTION)'
+                       r'[ACEGIMLONPSRUTYZ\d,\.\-\(\) ]+)$',
+                       re.I)
+json_regex = re.compile(r'^(\s+)?\{[\s\w,\[\]\{\}\-\."\':]+\}(\s+)?$')