| | 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 | #if STDC_HEADERS || HAVE_STRING_H |
| | 23 | # include <string.h> |
| | 24 | #endif |
| | 25 | #include "dirname.h" |
| | 26 | |
| | 27 | /* In general, we can't use the builtin `basename' function if available, |
| | 28 | since it has different meanings in different environments. |
| | 29 | In some environments the builtin `basename' modifies its argument. |
| | 30 | |
| | 31 | Return the address of the last file name component of NAME. If |
| | 32 | NAME has no file name components because it is all slashes, return |
| | 33 | NAME if it is empty, the address of its last slash otherwise. */ |
| | 34 | |
| | 35 | char * |
| | 36 | base_name (char const *name) |
| | 37 | { |
| | 38 | char const *base = name + FILESYSTEM_PREFIX_LEN (name); |
| | 39 | char const *p; |
| | 40 | |
| | 41 | for (p = base; *p; p++) |
| | 42 | { |
| | 43 | if (ISSLASH (*p)) |
| | 44 | { |
| | 45 | /* Treat multiple adjacent slashes like a single slash. */ |
| | 46 | do p++; |
| | 47 | while (ISSLASH (*p)); |
| | 48 | |
| | 49 | /* If the file name ends in slash, use the trailing slash as |
| | 50 | the basename if no non-slashes have been found. */ |
| | 51 | if (! *p) |
| | 52 | { |
| | 53 | if (ISSLASH (*base)) |
| | 54 | base = p - 1; |
| | 55 | break; |
| | 56 | } |
| | 57 | |
| | 58 | /* *P is a non-slash preceded by a slash. */ |
| | 59 | base = p; |
| | 60 | } |
| | 61 | } |
| | 62 | |
| | 63 | return (char *) base; |
| | 64 | } |
| | 65 | |
| | 66 | /* Return the length of of the basename NAME. Typically NAME is the |
| | 67 | value returned by base_name. Act like strlen (NAME), except omit |
| | 68 | redundant trailing slashes. */ |
| | 69 | |
| | 70 | size_t |
| | 71 | base_len (char const *name) |
| | 72 | { |
| | 73 | size_t len; |
| | 74 | |
| | 75 | for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--) |
| | 76 | continue; |
| | 77 | |
| | 78 | return len; |
| | 79 | } |
projects / bison.git / blame_incremental