42 lines
1.6 KiB
Plaintext
42 lines
1.6 KiB
Plaintext
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 is the current maintainer.
|