ENH: better fix for dos return in lines, use the regular expression and don't edit the input line

Source/cmSystemTools.cxx

@@ -484,18 +484,6 @@ const char *cmSystemTools::ConvertToWindowsSlashesAndCleanUp(std::string& path)
   return path.c_str();
 }
 
-inline void CleanText(char* s)
-{
-  while(*s != 0)
-    {
-      if(*s == '\r')
-	{
-	  *s = ' ';
-	}
-      s++;
-    }
-}
-
 bool cmSystemTools::ParseFunction(std::ifstream& fin,
                                   std::string& name,
                                   std::vector<std::string>& arguments,
@@ -511,12 +499,11 @@ bool cmSystemTools::ParseFunction(std::ifstream& fin,
     }
   if(fin.getline(inbuffer, BUFFER_SIZE ) )
     {
-    CleanText(&inbuffer[0]);
-    cmRegularExpression blankLine("^[ \t]*$");
+    cmRegularExpression blankLine("^[ \t\r]*$");
     cmRegularExpression comment("^[ \t]*#.*$");
-    cmRegularExpression oneLiner("^[ \t]*([A-Za-z_0-9]*)[ \t]*\\((.*)\\)[ \t]*$");
+    cmRegularExpression oneLiner("^[ \t]*([A-Za-z_0-9]*)[ \t]*\\((.*)\\)[ \t\r]*$");
     cmRegularExpression multiLine("^[ \t]*([A-Za-z_0-9]*)[ \t]*\\((.*)$");
-    cmRegularExpression lastLine("^(.*)\\)[ \t]*$");
+    cmRegularExpression lastLine("^(.*)\\)[ \t\r]*$");
 
     // check for black line or comment
     if(blankLine.find(inbuffer) || comment.find(inbuffer))
@@ -546,7 +533,6 @@ bool cmSystemTools::ParseFunction(std::ifstream& fin,
         // read lines until the end paren is found
         if(fin.getline(inbuffer, BUFFER_SIZE ) )
           {
-          CleanText(&inbuffer[0]);
           // Check for comment lines and ignore them.
           if(blankLine.find(inbuffer) || comment.find(inbuffer))
             { continue; }