/* File names on MS-DOS/Windows systems. Copyright (C) 2000-2001, 2004-2006, 2009-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. From Paul Eggert and Jim Meyering. */ #ifndef _DOSNAME_H #define _DOSNAME_H #if (defined _WIN32 || defined __WIN32__ || \ defined __MSDOS__ || defined __CYGWIN__ || \ defined __EMX__ || defined __DJGPP__) /* This internal macro assumes ASCII, but all hosts that support drive letters use ASCII. */ # define _IS_DRIVE_LETTER(C) (((unsigned int) (C) | ('a' - 'A')) - 'a' \ <= 'z' - 'a') # define FILE_SYSTEM_PREFIX_LEN(Filename) \ (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0) # ifndef __CYGWIN__ # define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 1 # endif # define ISSLASH(C) ((C) == '/' || (C) == '\\') #else # define FILE_SYSTEM_PREFIX_LEN(Filename) 0 # define ISSLASH(C) ((C) == '/') #endif #ifndef FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE # define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0 #endif #if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE # define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)]) # else # define IS_ABSOLUTE_FILE_NAME(F) \ (ISSLASH ((F)[0]) || FILE_SYSTEM_PREFIX_LEN (F) != 0) #endif #define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F)) #endif /* DOSNAME_H_ */