| | 1 | /* basename.c -- return the last element in a path |
| | 2 | Copyright (C) 1990, 1998, 1999, 2000, 2001 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| | 17 | |
| | 18 | #if HAVE_CONFIG_H |
| | 19 | # include <config.h> |
| | 20 | #endif |
| | 21 | |
| | 22 | #include <stdio.h> |
| | 23 | #include <assert.h> |
| | 24 | |
| | 25 | #ifndef FILESYSTEM_PREFIX_LEN |
| | 26 | # define FILESYSTEM_PREFIX_LEN(Filename) 0 |
| | 27 | #endif |
| | 28 | |
| | 29 | #ifndef PARAMS |
| | 30 | # if defined PROTOTYPES || (defined __STDC__ && __STDC__) |
| | 31 | # define PARAMS(Args) Args |
| | 32 | # else |
| | 33 | # define PARAMS(Args) () |
| | 34 | # endif |
| | 35 | #endif |
| | 36 | |
| | 37 | #ifndef ISSLASH |
| | 38 | # define ISSLASH(C) ((C) == '/') |
| | 39 | #endif |
| | 40 | |
| | 41 | char *base_name PARAMS ((char const *name)); |
| | 42 | |
| | 43 | /* In general, we can't use the builtin `basename' function if available, |
| | 44 | since it has different meanings in different environments. |
| | 45 | In some environments the builtin `basename' modifies its argument. |
| | 46 | If NAME is all slashes, be sure to return `/'. */ |
| | 47 | |
| | 48 | char * |
| | 49 | base_name (char const *name) |
| | 50 | { |
| | 51 | char const *base = name += FILESYSTEM_PREFIX_LEN (name); |
| | 52 | int all_slashes = 1; |
| | 53 | char const *p; |
| | 54 | |
| | 55 | for (p = name; *p; p++) |
| | 56 | { |
| | 57 | if (ISSLASH (*p)) |
| | 58 | base = p + 1; |
| | 59 | else |
| | 60 | all_slashes = 0; |
| | 61 | } |
| | 62 | |
| | 63 | /* If NAME is all slashes, arrange to return `/'. */ |
| | 64 | if (*base == '\0' && ISSLASH (*name) && all_slashes) |
| | 65 | --base; |
| | 66 | |
| | 67 | /* Make sure the last byte is not a slash. */ |
| | 68 | assert (all_slashes || !ISSLASH (*(p - 1))); |
| | 69 | |
| | 70 | return (char *) base; |
| | 71 | } |
projects / bison.git / blame_incremental