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A comment on Ripgrep – A new command line search tool.

Re:Ripgrep – A new command line search tool by petre on Friday September 23, 2016 @12:58PM (#12566086)
Does it use PCRE (not the lib, the regex style). If not, ack is just fine. My main concern with grep are Posix regular expressions.
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Re:Ripgrep – A new command line search tool by Occivink on Friday September 23, 2016 @02:03PM (#12566675)
It uses the re2 style, as provided by the rust regex library.
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Re:Ripgrep – A new command line search tool by steveklabnik on Friday September 23, 2016 @01:30PM (#12566378)
"regex style" is a bit too broad. The regexes feel more like PCRE syntactically than they do POSIX, but does not support the more exotic features of PCRE.
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