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#include <visit-config.h>
#include "stringutil.h"
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#elif defined(WIN32)
# include <direct.h>
# define WINDOWS_LEAN_AND_MEAN
# include <windows.h>
# ifndef PATH_MAX
# define PATH_MAX MAX_PATH
# endif
#endif
#include <limits.h>
//===============================================================
/*!
Returns the full path to the directory containing the given file or directory, without the trailing "/", unless the result is "/" itself.
Examples:
Dirname("/usr/local") == "/usr"
Dirname("/usr/local/") == "/usr"
Dirname("relative/path") == "/full/path/to/relative"
Dirname("my/directory/") == "/full/path/to/my"
Dirname("/") == "/"
*/
inline string Dirname(string filename) {
string dirname = StripBack(filename, "/");
if (!dirname.length()) return string("/");
if (dirname[0] != '/') {
// need to switch to absolute path
char wd[PATH_MAX]; // this is why I hate C programming -- there is no way to be sure about buffer overflows with this kind of crap lingering around
getcwd(wd, PATH_MAX);
string::size_type loc = dirname.find("/");
if (loc == string::npos) {
return string(wd);
}
// prepend current working directory to mDirname
dirname = string(wd) + "/" + dirname;
}
string::size_type loc = dirname.rfind("/");
if (loc == string::npos) { // reality check
throw string("Error in Dirname(): Logic error: there are no '/' chars in supposedly absolute path: ") + dirname;
}
return StripBack(dirname.substr(0,loc),"/");
}
//===============================================================
/*!
Returns the last link of the filename, ala the "basename" shell command.
*/
inline string Basename(string filename) {
filename = StripBack(filename, "/");
string::size_type loc = filename.rfind("/");
if (loc == string::npos) {
return filename;
}
return filename.substr(loc);
}
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