* libardour uses ARDOUR::nframes_t and ARDOUR::nframes64_t explicitly in headers

[ardour.git] / libs / pbd / whitespace.cc

diff --git a/libs/pbd/whitespace.cc b/libs/pbd/whitespace.cc
index e35a8a8c0ea872ec7696cc51e459ca31ebaeacea..d73fced321a00f73f83522cc2d0e7e561824632d 100644 (file)
--- a/libs/pbd/whitespace.cc
+++ b/libs/pbd/whitespace.cc
@@ -1,16 +1,41 @@
-#include <pbd/whitespace.h>
+/*
+    Copyright (C) 2000-2007 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "pbd/whitespace.h"
 
 using namespace std;
 
+namespace PBD {
+       
 void
 strip_whitespace_edges (string& str)
 {   
     string::size_type i; 
     string::size_type len;    
-    string::size_type s;
+    string::size_type s = 0;
                                    
     len = str.length();
 
+    if (len == 1) {
+           return;
+    }
+
     /* strip front */
                                        
     for (i = 0; i < len; ++i) {
@@ -19,12 +44,22 @@ strip_whitespace_edges (string& str)
         }
     }
 
+    if (i == len) {
+           /* it's all whitespace, not much we can do */
+               str = "";
+           return;
+    }
+
     /* strip back */
     
     if (len > 1) {
     
            s = i;
            i = len - 1;
+
+           if (s == i) {
+                   return;
+           }
            
            do {
                    if (isgraph (str[i]) || i == 0) {
@@ -42,3 +77,4 @@ strip_whitespace_edges (string& str)
     }
 }
 
+} // namespace PBD