X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fbasename.c;h=67d9420a6d9d1a5e1e18f589cc9dba152b66ca4c;hb=1276a2c5f24c0c932426aca9c899fa524d2443f2;hp=fbe17ff910c8e8ee93eec92dbb7274739f8e821e;hpb=0632e115747ff96e93330c88f536d7354a7ce507;p=gnulib.git diff --git a/lib/basename.c b/lib/basename.c index fbe17ff91..67d9420a6 100644 --- a/lib/basename.c +++ b/lib/basename.c @@ -1,12 +1,12 @@ /* basename.c -- return the last element in a file name - Copyright (C) 1990, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006 Free - Software Foundation, Inc. + Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2014 Free Software + Foundation, Inc. - This program is free software; you can redistribute it and/or modify + 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 2, or (at your option) - any later version. + 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 @@ -14,8 +14,7 @@ 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, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + along with this program. If not, see . */ #include @@ -25,52 +24,6 @@ #include "xalloc.h" #include "xstrndup.h" -/* Return the address of the last file name component of NAME. If - NAME has no relative file name components because it is a file - system root, return the empty string. */ - -char * -last_component (char const *name) -{ - char const *base = name + FILE_SYSTEM_PREFIX_LEN (name); - char const *p; - bool saw_slash = false; - - while (ISSLASH (*base)) - base++; - - for (p = base; *p; p++) - { - if (ISSLASH (*p)) - saw_slash = true; - else if (saw_slash) - { - base = p; - saw_slash = false; - } - } - - return (char *) base; -} - - -/* In general, we can't use the builtin `basename' function if available, - since it has different meanings in different environments. - In some environments the builtin `basename' modifies its argument. - - Return the last file name component of NAME, allocated with - xmalloc. On systems with drive letters, a leading "./" - distinguishes relative names that would otherwise look like a drive - letter. Unlike POSIX basename(), NAME cannot be NULL, - base_name("") returns "", and the first trailing slash is not - stripped. - - If lstat (NAME) would succeed, then { chdir (dir_name (NAME)); - lstat (base_name (NAME)); } will access the same file. Likewise, - if the sequence { chdir (dir_name (NAME)); - rename (base_name (NAME), "foo"); } succeeds, you have renamed NAME - to "foo" in the same directory NAME was in. */ - char * base_name (char const *name) { @@ -87,8 +40,8 @@ base_name (char const *name) if (ISSLASH (base[length])) length++; - /* On systems with drive letters, `a/b:c' must return `./b:c' rather - than `b:c' to avoid confusion with a drive letter. On systems + /* On systems with drive letters, "a/b:c" must return "./b:c" rather + than "b:c" to avoid confusion with a drive letter. On systems with pure POSIX semantics, this is not an issue. */ if (FILE_SYSTEM_PREFIX_LEN (base)) { @@ -103,27 +56,3 @@ base_name (char const *name) /* Finally, copy the basename. */ return xstrndup (base, length); } - -/* Return the length of the basename NAME. Typically NAME is the - value returned by base_name or last_component. Act like strlen - (NAME), except omit all trailing slashes. */ - -size_t -base_len (char const *name) -{ - size_t len; - size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name); - - for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--) - continue; - - if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1 - && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2]) - return 2; - - if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len - && len == prefix_len && ISSLASH (name[prefix_len])) - return prefix_len + 1; - - return len; -}