sent 22:33:21 27 April 2011, Wednesday
by googler:
> Thanks for the reply. But it may not always be simple like you showed
> above. For example, if I wanted to only search for those numbers that
> are divisible by 7. If such a feature is currently not available in
> vim, it maybe a good idea to add it? Just a suggestion..
Normally you do the following: create a regular expression that is able to find
all numbers and then write additional code which will filter the results of the
first search so that only numbers divisible by 7 are left. I do not think this
should be added to regex engine: most of time such advanced features are not
needed and when they are needed they may lead to highly inefficient solution. I
saw only one language where you can embed such condition in a regular expression
(by embedding a code), but I have never seen any examples of code that uses this
feature. (Of course, this language is perl.)
Original message:
> On Apr 27, 3:36 am, "John Beckett" <johnb.beck...@gmail.com> wrote:
> > googler wrote:
> > > I have a file where I have words like X1, X2, ..., X16, X17, X18, ....
> > > I want to find out occurences of words containing a number
> > > greater than, say, 17. So basically, I want to find X18, X19,
> > > X20, etc. How can I do this in vim? In other words, can we
> > > use arithmetic expressions in search? If yes, how?
> >
> > I believe there is no way to search for a number depending on an
> > expression. You would have to do it manually, something like
> > this simple effort:
> >
> > /X1[89]\|X[2-9][0-9]
> >
> > John
>
> Thanks for the reply. But it may not always be simple like you showed
> above. For example, if I wanted to only search for those numbers that
> are divisible by 7. If such a feature is currently not available in
> vim, it maybe a good idea to add it? Just a suggestion..
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