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| author | Igor Pashev <pashev.igor@gmail.com> | 2012-06-24 22:28:35 +0000 |
|---|---|---|
| committer | Igor Pashev <pashev.igor@gmail.com> | 2012-06-24 22:28:35 +0000 |
| commit | 3950ffe2a485479f6561c27364d3d7df5a21d124 (patch) | |
| tree | 468c6e14449d1b1e279222ec32f676b0311917d2 /src/lib/libast/comp/basename.c | |
| download | ksh-upstream.tar.gz | |
Imported Upstream version 93u+upstream
Diffstat (limited to 'src/lib/libast/comp/basename.c')
| -rw-r--r-- | src/lib/libast/comp/basename.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/lib/libast/comp/basename.c b/src/lib/libast/comp/basename.c new file mode 100644 index 0000000..912f8d6 --- /dev/null +++ b/src/lib/libast/comp/basename.c @@ -0,0 +1,55 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2011 AT&T Intellectual Property * +* and is licensed under the * +* Eclipse Public License, Version 1.0 * +* by AT&T Intellectual Property * +* * +* A copy of the License is available at * +* http://www.eclipse.org/org/documents/epl-v10.html * +* (with md5 checksum b35adb5213ca9657e911e9befb180842) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* Phong Vo <kpv@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped +/* + * basename(3) implementation + */ + +#include <ast_std.h> + +#if defined(__EXPORT__) +#define extern __EXPORT__ +#endif + +extern char *basename(register char *pathname) +{ + register char *first, *last; + for(first=last=pathname; *last; last++); + /* back over trailing '/' */ + if(last>first) + while(*--last=='/' && last > first); + if(last==first && *last=='/') + { + /* all '/' or "" */ + if(*first=='/') + if(*++last=='/') /* keep leading // */ + last++; + } + else + { + for(first=last++;first>pathname && *first!='/';first--); + if(*first=='/') + first++; + } + *last = 0; + return(first); +} |