Re: String replace with lisp code

["Andreas Röhler" <andreas.roehler@easy-emacs.de>]

Am 18.07.2011 07:36, schrieb C K Kashyap:
> Hi,
> During search/replace, how can I use  the evaluation of a lisp expression as
> the substitution string?
>
> An example could be ... say I want to replace the occurrence of a certain
> word with the word prefixed with its occurrence count -
>
> For example -  If I'd like to replace the occurrence of sea in  -
> She sells sea shells on the sea shore
> with
> She sells (1)sea shells on the (2)sea shore.
>
> Or perhaps a more frequent use case of adding line number to each line
>
> (while I was typing this, I got the idea of using the keyboard macro to
> achieve this .... is there a better way though?)
>
> Regards,
> Kashyap
>

M-x query-replace-regexp,
\(sea\)
RET
\,(progn (or count (setq count 1))(setq count (1+ count))(concat "(" 
(number-to-string count) ")" \1))
RET

;;;;;;;;;;;;

\,EXPR

evaluates the expression and the takes the result for replacement.


Andreas

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