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A comment on \d less efficient than [0-9]. Parent comment

Re:\d less efficient than [0-9] by nknighthb on Sunday May 19, 2013 @06:46PM (#5734726)
I would be reluctant to rely on this until the Go documentation is clearer on the intended behavior. Right now it's very poorly specified. The regex doc[1] talks about "same general syntax" as Perl, but points to [2], which doesn't seem to understand what it's saying, describing '\d' in terms of its "Perl" meaning, but then saying that it's [0-9].

[1] http://golang.org/pkg/regexp/

[2] https://code.google.com/p/re2/wiki/Syntax

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Re:\d less efficient than [0-9] by laumars on Sunday May 19, 2013 @07:57PM (#5734995)
As a Perl developer that's been making the switch to Go, I've been caught out a few times with Go's no-so-Perl-like regular expression syntax. In fact I wish I knew about your 2nd link before now, because that could have saved me a few hours over recent months.
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