From 479beca9f471a22dc80df3bbd5cb15622462b4f7 Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Sun, 10 Oct 2004 12:14:58 -0400
Subject: [PATCH] ENH: Add method to retrieve parent directory and for checking
if directory is a subdirectory of another directory
---
SystemTools.cxx | 40 ++++++++++++++++++++++++++++++++++++++++
SystemTools.hxx.in | 6 ++++++
2 files changed, 46 insertions(+)
diff --git a/SystemTools.cxx b/SystemTools.cxx
index 937c4ee7..591e4960 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -2010,6 +2010,46 @@ bool SystemTools::SetPermissions(const char* file, mode_t mode)
return true;
}
+std::string SystemTools::GetParentDirectory(const char* fileOrDir)
+{
+ if ( !fileOrDir || !*fileOrDir )
+ {
+ return "";
+ }
+ std::string res = fileOrDir;
+ SystemTools::ConvertToUnixSlashes(res);
+ std::string::size_type cc = res.size()-1;
+ if ( res[cc] == '/' )
+ {
+ cc --;
+ }
+ for ( ; cc > 0; cc -- )
+ {
+ if ( res[cc] == '/' )
+ {
+ break;
+ }
+ }
+ return res.substr(0, cc);
+}
+
+bool SystemTools::IsSubDirectory(const char* cSubdir, const char* cDir)
+{
+ std::string subdir = cSubdir;
+ std::string dir = cDir;
+ SystemTools::ConvertToUnixSlashes(dir);
+ std::string path = subdir;
+ do
+ {
+ path = SystemTools::GetParentDirectory(path.c_str());
+ if ( dir == path )
+ {
+ return true;
+ }
+ }
+ while ( path.size() > dir.size() );
+ return false;
+}
// These must NOT be initialized. Default initialization to zero is
// necessary.
diff --git a/SystemTools.hxx.in b/SystemTools.hxx.in
index e5881b05..33e7904c 100644
--- a/SystemTools.hxx.in
+++ b/SystemTools.hxx.in
@@ -316,6 +316,12 @@ public:
static bool GetPermissions(const char* file, mode_t& mode);
static bool SetPermissions(const char* file, mode_t mode);
+ /** Get the parent directory of the directory or file */
+ static std::string GetParentDirectory(const char* fileOrDir);
+
+ /** Check if the given file or directory is in subdirectory of dir */
+ static bool IsSubDirectory(const char* fileOrDir, const char* dir);
+
protected:
// these two functions can be called from ConvertToOutputPath
/**
--
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