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authorGabor Kovesdan <gabor@FreeBSD.org>2010-07-22 19:11:57 +0000
committerGabor Kovesdan <gabor@FreeBSD.org>2010-07-22 19:11:57 +0000
commit4dc88ebedf943d69252e1bb441d756cf85540592 (patch)
tree318bb6f174fac904c08b62b93207c79c56437b11 /gnu
parent582a734e13770204c7ffac8f60c089d5a47b6bd1 (diff)
downloadsrc-4dc88ebedf943d69252e1bb441d756cf85540592.tar.gz
src-4dc88ebedf943d69252e1bb441d756cf85540592.zip
Add BSD grep to the base system and make it our default grep.
Deliverables: Small and clean code (1,4 KSLOC vs GNU's 8,5 KSLOC), lower memory usage than GNU grep, GNU compatibility, BSD license. TODO: Performance is somewhat behind GNU grep but it is only significant for bigger searches. The reason is complex, the most important factor is that GNU grep uses lots of optimizations to improve the speed of the regex library. First, we need a modern regex library (practically by adopting TRE), add support for GNU-style non-standard regexes and then reevalute the performance issues and look for bottlenecks. In the meantime, for those, who need better performance, it is possible to build GNU grep by setting WITH_GNU_GREP. Approved by: delphij (mentor) Obtained from: OpenBSD (http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/grep/), freegrep (http://github.com/howardjp/freegrep) Sponsored by: Google SoC 2008 Portbuild tests run by: kris, pav, erwin Acknowledgements to: fjoe (as SoC 2008 mentor), everyone who helped in reviewing and testing
Notes
Notes: svn path=/head/; revision=210389
Diffstat (limited to 'gnu')
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