/**
* br_extract_prefix:
* path: The full path of an executable or library.
* Returns: The prefix, or NULL on error. This string should be freed when no longer needed.
*
* Extracts the prefix from path. This function assumes that your executable
* or library is installed in an LSB-compatible directory structure.
*
* Example:
* br_extract_prefix ("/usr/bin/gnome-panel"); --> Returns "/usr"
* br_extract_prefix ("/usr/local/lib/libfoo.so"); --> Returns "/usr/local"
* br_extract_prefix ("/usr/local/libfoo.so"); --> Returns "/usr"
*/
char *
br_extract_prefix (const char *path)
{
const char *end;
char *tmp, *result;
br_return_val_if_fail (path != (char *) NULL, (char *) NULL);
if (!*path) return strdup ("/");
end = strrchr (path, '/');
if (!end) return strdup (path);
tmp = br_strndup ((char *) path, end - path);
if (!*tmp)
{
free (tmp);
return strdup ("/");
}
end = strrchr (tmp, '/');
if (!end) return tmp;
result = br_strndup (tmp, end - tmp);
free (tmp);
if (!*result)
{
free (result);
result = strdup ("/");
}
return result;
}
/**
* br_extract_dir:
* path: A path.
* Returns: A directory name. This string should be freed when no longer needed.
*
* Extracts the directory component of path. Similar to g_dirname() or the dirname
* commandline application.
*
* Example:
* br_extract_dir ("/usr/local/foobar"); --> Returns: "/usr/local"
*/
char *
br_extract_dir (const char *path)
{
char *end, *result;
br_return_val_if_fail (path != (char *) NULL, (char *) NULL);
end = strrchr (path, '/');
if (!end) return strdup (".");
while (end > path && *end == '/')
end--;
result = br_strndup ((char *) path, end - path + 1);
if (!*result)
{
free (result);
return strdup ("/");
} else
return result;
}
/** Extracts the directory component of a path.
*
* Similar to g_dirname() or the dirname commandline application.
*
* Example:
* \code
* br_dirname ("/usr/local/foobar"); --> Returns: "/usr/local"
* \endcode
*
* @param path A path.
* @returns A directory name. This string should be freed when no longer needed.
*/
char *
br_dirname (const char *path)
{
char *end, *result;
if (path == (const char *) NULL)
return (char *) NULL;
end = strrchr (path, '/');
if (end == (const char *) NULL)
return strdup (".");
while (end > path && *end == '/')
end--;
result = br_strndup (path, end - path + 1);
if (result[0] == 0) {
free (result);
return strdup ("/");
} else
return result;
}
