On Dec 15, 2013 12:38 AM, "Erik Christiansen" <dvalin@internode.on.net> wrote:
>
> On 14.12.13 18:55, Jerry Rocteur wrote:
> > This is probably the best article that I've found and used to get my
> > reg exps working within Vim.
> >
> > http://vimregex.com/
>
> The first example under "4.5 Grouping and Backreferences" at
> that site:
>
> :s:\(\w\+\)\(\s\+\)\(\w\+\):\3\2\1:
>
> is neat in its effect¹, but it's all b\ac\ks\la\sh\es!
>
> Why oh why oh why would anyone not use its human readable form:
>
> :s:\v(\w+)(\s+)(\w+):\3\2\1:
>
> where we can easily read the meaning at a single glance, now that the
> redundant backslash snowstorm is removed.
>
> ¹ Both forms swap the first two words on a line:
>
> one two three # becomes
>
> two one three
>
> Could it be a disservice to new converts to teach them an obsolete regex
> dialect when it is such an obfuscated way to do things, and Vim offers a
> so much more legible alternative, which is a modern posix standard form?In my opinion, yes. \v is not used habitually in the Vim forums I frequent, and it has always puzzled me that Vim regulars persist in offering the 'magic' form instead of 'very magic'. For non-plugin contexts it makes no sense. Personally I use \v liberally when editing unless I explicitly want \V or default magic behavior.
Justin M. Keyes
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Thanks & Regards
Vickyb
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