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?
Erik
--
Habit is habit, and not to be flung out of the window by any man, but
coaxed down-stairs a step at a time.
- Mark Twain, "Pudd'nhead Wilson's Calendar
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Sunday, December 15, 2013
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