Re: vim: want control character in substitution string

On Mar 11, 4:48 pm, Gary Johnson wrote:
>On 2013-03-11, Paul wrote:
>> After much reading, I found that I can match ^@ with \%x00 in the
>> search string, but I haven't found a way to specify control
>> characters in the substitution string. Is there a way?
>
> You can use the nr2char() function as a replacement expression,
> e.g.,
>
> :%s/\^D/\=nr2char(4)/g
>
> See
>
> :help sub-replace-expression
> :help nr2char()

This is great! I learn about nr2char as well as \= at the same time!

As Ben said, however, ^@ seems special and nr2char(0) doesn't seem to
stick a ^@ in the substitution. However, his trick of using \n in the
substitution string gets around that.

Thanks!

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