Re: How to use an expression as the pattern

On Monday 04 January 2010 04:44:17 pm Karl Cai wrote:

> Can somebody tell me how to use an expression (e.g., the
> output of a command) as the search pattern? I am using vim
> 7.0.94
>
> For example:
> :let x = system("hostname") # say x is "mycomputer" now. This
> : should work %s/$x/yourcomputer/g # trying to change
> : all "mycomputer" to
>
> "yourcomputer". This doesn't work
> Or
>
> :%s/\=x/yourcomputer/g # same purpose, but doesn't work
> : either.
>
i think you're looking for the execute command -- something along
the lines of

exe "%s/" . x . "/yourcomputer/g"

should work -- see

:help execute

for a more detailed explanation

sc

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