python/lib/django-1.2/django/contrib/gis/geometry/regex.py

   1 import re
   2
   3 # Regular expression for recognizing HEXEWKB and WKT.  A prophylactic measure
   4 # to prevent potentially malicious input from reaching the underlying C
   5 # library.  Not a substitute for good Web security programming practices.
   6 hex_regex = re.compile(r'^[0-9A-F]+$', re.I)
   7 wkt_regex = re.compile(r'^(SRID=(?P<srid>\d+);)?'
   8                        r'(?P<wkt>'
   9                        r'(?P<type>POINT|LINESTRING|LINEARRING|POLYGON|MULTIPOINT|MULTILINESTRING|MULTIPOLYGON|GEOMETRYCOLLECTION)'
  10                        r'[ACEGIMLONPSRUTYZ\d,\.\-\(\) ]+)$',
  11                        re.I)
  12 json_regex = re.compile(r'^(\s+)?\{[\s\w,\[\]\{\}\-\."\':]+\}(\s+)?$')