1 /* Pathname support. 2 Copyright (C) 2001-2004 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 17 18 #ifndef _PATHNAME_H 19 #define _PATHNAME_H 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 26 /* Pathname support. 27 ISSLASH(C) tests whether C is a directory separator character. 28 IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not, 29 it may be concatenated to a directory pathname. 30 IS_PATH_WITH_DIR(P) tests whether P contains a directory specification. 31 */ 32 #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__ 33 /* Win32, Cygwin, OS/2, DOS */ 34 # define ISSLASH(C) ((C) == '/' || (C) == '\\') 35 # define HAS_DEVICE(P) \ 36 ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \ 37 && (P)[1] == ':') 38 # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P)) 39 # define IS_PATH_WITH_DIR(P) \ 40 (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P)) 41 # define FILE_SYSTEM_PREFIX_LEN(P) (HAS_DEVICE (P) ? 2 : 0) 42 #else 43 /* Unix */ 44 # define ISSLASH(C) ((C) == '/') 45 # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0]) 46 # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL) 47 # define FILE_SYSTEM_PREFIX_LEN(P) 0 48 #endif 49 50 /* Concatenate a directory pathname, a relative pathname and an optional 51 suffix. Return a freshly allocated pathname. */ 52 extern char *concatenated_pathname (const char *directory, 53 const char *filename, const char *suffix); 54 55 #ifdef __cplusplus 56 } 57 #endif 58 59 #endif /* _PATHNAME_H */ 60