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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmFilename.h"
#include <limits.h>
#include <stdlib.h> // realpath
#include <assert.h>
#include <string.h>
namespace gdcm
{
/**
* Return path of a full filename (no trailing slashes).
* Warning: returned path is converted to Unix slashes format.
*/
const char *Filename::GetPath()
{
std::string fn = ToUnixSlashes();
std::string::size_type slash_pos = fn.rfind("/");
if(slash_pos != std::string::npos)
{
Path = fn.substr(0, slash_pos);
}
else
{
Path = "";
}
return Path.c_str();
}
/**
* Return file name of a full filename (i.e. file name without path).
*/
const char *Filename::GetName()
{
std::string filename = FileName;
assert( !filename.empty() );
#if defined(_WIN32)
std::string::size_type slash_pos = filename.find_last_of("/\\");
#else
std::string::size_type slash_pos = filename.find_last_of("/");
#endif
if(slash_pos != std::string::npos)
{
return &FileName[0] + slash_pos + 1;
}
return &FileName[0];
}
const char *Filename::ToWindowsSlashes()
{
Conversion = FileName;
//assert( !Conversion.empty() );
for (std::string::iterator it = Conversion.begin(); it != Conversion.end(); ++it )
{
if( *it == '/' )
{
*it = '\\';
}
}
return Conversion.c_str();
}
// convert windows slashes to unix slashes
const char *Filename::ToUnixSlashes()
{
Conversion = FileName;
//std::string::size_type s = Conversion.find("\\");
//assert( s == std::string::npos );
assert( !Conversion.empty() );
for (std::string::iterator it = Conversion.begin(); it != Conversion.end(); ++it )
{
if( *it == '\\' )
{
assert( it+1 == Conversion.end() || *(it+1) != ' ' ); // is it an escaped space ?
*it = '/';
}
}
return Conversion.c_str();
}
#if defined(_WIN32) && (defined(_MSC_VER) || defined(__WATCOMC__) || defined(__BORLANDC__) || defined(__MINGW32__))
#include <windows.h>
inline void Realpath(const char *path, std::string & resolved_path)
{
char *ptemp;
char fullpath[MAX_PATH];
if( GetFullPathName(path, sizeof(fullpath), fullpath, &ptemp) )
{
Filename fn( fullpath );
resolved_path = fn.ToUnixSlashes();
}
else
{
resolved_path = "";
}
}
#else
/* The maximum length of a file name. */
#if defined(PATH_MAX)
# define GDCM_FILENAME_MAXPATH PATH_MAX
#elif defined(MAXPATHLEN)
# define GDCM_FILENAME_MAXPATH MAXPATHLEN
#else
# define GDCM_FILENAME_MAXPATH 16384
#endif
inline void Realpath(const char *path, std::string & resolved_path)
{
char resolved_name[GDCM_FILENAME_MAXPATH];
char *ret = realpath(path, resolved_name);
if( ret )
{
resolved_path = resolved_name;
}
else
{
resolved_path = "";
}
}
#endif
const char *Filename::GetExtension()
{
std::string name = GetName();
std::string::size_type dot_pos = name.rfind(".");
if(dot_pos != std::string::npos)
{
return GetName() + dot_pos;
}
return 0;
}
bool Filename::IsIdentical(Filename const &fn) const
{
std::string realpath1;
std::string realpath2;
Realpath(FileName.c_str(), realpath1);
Realpath(fn.GetFileName(), realpath2);
gdcmDebugMacro( "IsIdentical: " << realpath1 << " vs " << realpath2 );
return realpath1 == realpath2;
}
const char *Filename::Join(const char *path, const char *filename)
{
static std::string s; // warning C4640: 's' : construction of local static object is not thread-safe
s = path;
s += '/';
s += filename;
return s.c_str();
}
bool Filename::EndWith(const char ending[]) const
{
if( !ending ) return false;
const char *str = FileName.c_str();
size_t str_len = FileName.size();
size_t ending_len = strlen(ending);
if(ending_len > str_len)
return false;
return 0 == strncmp( str + str_len - ending_len, ending, ending_len );
}
} // end namespace gdcm
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