[GRASS-SVN] r55277 - grass/branches/releasebranch_6_4/lib/python

[svn_grass at osgeo.org]

Author: annakrat
Date: 2013-03-03 00:41:38 -0800 (Sun, 03 Mar 2013)
New Revision: 55277

Modified:
   grass/branches/releasebranch_6_4/lib/python/core.py
Log:
backport r55229

Modified: grass/branches/releasebranch_6_4/lib/python/core.py
===================================================================
--- grass/branches/releasebranch_6_4/lib/python/core.py	2013-03-01 21:01:50 UTC (rev 55276)
+++ grass/branches/releasebranch_6_4/lib/python/core.py	2013-03-03 08:41:38 UTC (rev 55277)
@@ -1199,3 +1199,25 @@
 # get debug_level
 if find_program('g.gisenv', ['--help']):
     debug_level = int(gisenv().get('DEBUG', 0))
+
+
+def legal_name(s):
+    """!Checks if the string contains only allowed characters.
+
+    This is the Python implementation of G_legal_filename() function.
+
+    @note It is not clear when to use this function.
+    """
+    if not s or s[0] == '.':
+        warning(_("Illegal filename <%s>. Cannot be empty or start with '.'.") % s)
+        return False
+
+    illegal = [c
+               for c in s
+               if c in '/"\'@,=*~' or c <= ' ' or c >= '\177']
+    if illegal:
+        illegal = ''.join(sorted(set(illegal)))
+        warning(_("Illegal filename <%s>. <%s> not allowed.\n") % (s, illegal))
+        return False
+
+    return True