X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=flower%2Ffile-name.cc;h=bb07ebccd0f03576bedd90f0e206158d9bcf4955;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=e5736e06b0834ed6c26e15e01f32d25d91682067;hpb=a276a19dc6bd57832db3107f2f2cbb04cb4677b6;p=lilypond.git

diff --git a/flower/file-name.cc b/flower/file-name.cc
index e5736e06b0..bb07ebccd0 100644
--- a/flower/file-name.cc
+++ b/flower/file-name.cc
@@ -3,7 +3,7 @@
 
   source file of the Flower Library
 
-  (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
@@ -12,6 +12,7 @@
 #include <cstdio>
 #include <cerrno>
 #include <unistd.h>
+#include <limits.h>
 
 using namespace std;
 
@@ -60,8 +61,8 @@ static /* avoid warning */
 string
 slashify (string file_name)
 {
-  replace_all (file_name, '\\', '/');
-  replace_all (file_name, string ("//"), "/");
+  replace_all (&file_name, '\\', '/');
+  replace_all (&file_name, string ("//"), "/");
   return file_name;
 }
 
@@ -177,3 +178,26 @@ File_name::is_absolute () const
   return (dir_.length () && dir_[0] == DIRSEP) || root_.length ();
 }
 
+
+
+File_name
+File_name::canonicalized () const
+{
+  File_name c = *this;
+
+  replace_all (&c.dir_, string ("//"), string ("/"));
+
+  vector<string> components =  string_split (c.dir_, '/');
+  vector<string> new_components;
+
+  for (vsize i = 0; i < components.size (); i++)
+    {
+      if (components[i] == "..")
+	new_components.pop_back ();
+      else
+	new_components.push_back (components[i]);
+    }
+
+  c.dir_ = string_join (new_components,  "/");
+  return c;  
+}