@@ 12,7 12,7 @@ class InvalidResultFile(Exception):
 def read(f, filesize):
     """Reads from file and parses RST data"""
     result = {}
-    pointers = get_sections(f, filesize)
+    pointers = _get_sections(f, filesize)
     # Read standard sections (should always exist, even if 0 items in section)
     f.seek(pointers['ships'])
     result['ships'] = Ship.read(f, has_count=True)

          
@@ 22,7 22,7 @@ def read(f, filesize):
     result['bases'] = Base.read(f, has_count=True)
     return result
     
-def valid_pointer(pointer, filesize, datasize):
+def _valid_pointer(pointer, filesize, datasize):
     """Checks if pointer seek location is valid (smaller than filesize)"""
     if not filesize:
         raise InvalidResultFile('RST file size zero or not defined')

          
@@ 32,7 32,7 @@ def valid_pointer(pointer, filesize, dat
         return True
     return False
     
-def get_sections(f, filesize):
+def _get_sections(f, filesize):
     """Get pointers for various sections of the RST file"""
     result = {}
     f.seek(0) # Reset position

          
@@ 48,14 48,14 @@ def get_sections(f, filesize):
     for key, pointer in result.items():
         result[key] = int(pointer) - 1
     # Check RST version: is WinPlan data present?
-    (result['winplan'], result['extratargets'],) = get_version(f, filesize)
+    (result['winplan'], result['extratargets'],) = _get_version(f, filesize)
     # Check if pointers are valid
     for pointer in result.values():
-        if pointer is not None and not valid_pointer(pointer, filesize, 2):
+        if pointer is not None and not _valid_pointer(pointer, filesize, 2):
             raise InvalidResultFile('One or more pointers is invalid')
     return result
 
-def get_version(f, filesize):
+def _get_version(f, filesize):
     """Analyses RST file to determine if it is DOS-style or WinPlan-style"""
     SIGNATURE = 'VER3.5'
     VERSIONS = ('00', '01',)

          
@@ 68,7 68,7 @@ def get_version(f, filesize):
     # Fix BASIC style pointer
     pointer = int(pointer) - 1
     # Check if location of WinPlan data (and TARGETSIG) exists in file
-    if not valid_pointer(pointer, filesize, 13282+4):
+    if not _valid_pointer(pointer, filesize, 13282+4):
         return None, None
     # Check second signature (TARGETSIG) at location +13282 of WinPlan data
     f.seek(pointer + 13282)