home *** CD-ROM | disk | FTP | other *** search
- Copyright (C) 1992, 1997-2002, 2004-2010 Free Software Foundation, Inc.
-
- Copying and distribution of this file, with or without modification,
- are permitted in any medium without royalty provided the copyright
- notice and this notice are preserved.
-
- Mike Haertel wrote the main program and the dfa and kwset matchers.
-
- Arthur David Olson contributed the heuristics for finding fixed substrings
- at the end of dfa.c.
-
- Richard Stallman and Karl Berry wrote the regex backtracking matcher.
-
- Henry Spencer wrote the original test suite from which grep's was derived.
-
- Scott Anderson invented the Khadafy test.
-
- David MacKenzie wrote the automatic configuration software use to
- produce the configure script.
-
- Authors of the replacements for standard library routines are identified
- in the corresponding source files.
-
- The idea of using Boyer-Moore type algorithms to quickly filter out
- non-matching text before calling the regexp matcher was originally due
- to James Woods. He also contributed some code to early versions of
- GNU grep.
-
- Mike Haertel would like to thank Andrew Hume for many fascinating discussions
- of string searching issues over the years. Hume & Sunday's excellent
- paper on fast string searching (AT&T Bell Laboratories CSTR #156)
- describes some of the history of the subject, as well as providing
- exhaustive performance analysis of various implementation alternatives.
- The inner loop of GNU grep is similar to Hume & Sunday's recommended
- "Tuned Boyer Moore" inner loop.
-
- More work was done on regex.[ch] by Ulrich Drepper and Arnold
- Robbins. Regex is now part of GNU C library, see this package
- for complete details and credits.
-
- Arnold Robbins contributed to improve dfa.[ch]. In fact
- it came straight from gawk-3.0.3 with small editing and fixes.
-
- Many folks contributed see THANKS, if I omited someone please
- send me email.
-
- Alain Magloire maintained GNU grep until version 2.5e.
-
- Bernhard "Bero" Rosenkränzer <bero@arklinux.org> maintained GNU grep until
- version 2.5.1, ie. from Sep 2001 till 2003.
-
- Stepan Kasal <kasal@ucw.cz> maintained GNU grep since Feb 2004.
-
- Tony Abou-Assaleh <taa@acm.org> maintains GNU grep since Oct 2007.
-
- Jim Meyering <jim@meyering.net> and Paolo Bonzini <bonzini@gnu.org> maintain GNU grep since Nov 2009.
-
- ;; Local Variables:
- ;; coding: utf-8
- ;; End:
-