On 05/06/2011 05:27 AM, Erik Christiansen wrote:
I've been slow to realise that Vim users don't necessarily use a variety of posix compliant applications, and so haven't experienced the great productivity benefit of being able to move between them _without_ trial and error, or resort to documentation.
Well, there are Posix regexps, Perl (which mostly overlaps with Python) regexps and Vim regexps as well as a variety of other flavors (MS Visual Studio's come to mind). By the time I throw in shell-escaping rules for things like sed/grep invocations, I choose one to use by default (vim, as it's my primary use of regexps), and just assume that I have to test (and/or read the documentation) and verify the results in any other environment.
Some of my "sed" and "grep" tools have a flag to throw them into Posix-compliance, and another flag to throw them into a PCRE mode. So even as someone who *does* use a variety of Posix-compliant tools, it's still a RE-portability headache.
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