Re: replace-regexp from A to B?

[Rodolfo Medina <rodolfo.medina@gmail.com>]

Emanuel Berg <moasen@zoho.com> writes:

> Rodolfo Medina wrote:
>
>> Is it possible, and how?, to perform
>> a replace-regexp from a certain point, e.g.
>> the current one, or from a certain
>> word/expression, up to the next occurrence of
>> a certain other word/expression...? In my
>> case, with MusiXTeX documents, the starting
>> point should be the TeX command `\startpiece'
>> and the final one `\Endpiece'. So I could
>> replace strings/expressions within a single
>> musical piece without going out of it.
>
> You can set the region manually and then use
> a function with
>
>     (goto-char START)
>     (while (re-search-forward REGEXP STOP t)
>       (replace-match TO-STRING nil nil))
>
> where START is (region-beginning) and STOP is
> (region-end). First check if there is a region
> with (use-region-p) !
>
> Or if you want it fully automated make a search
> for "\startpiece" and set START, then make
> a search for "\Endpiece" and set STOP. Do this
> in Elisp as well.
>
> But then you'd have to supply them (the
> delimitators) as arguments so it won't
> necessarily be faster because you'd have to
> type them each time rather than to set
> the region.
>
> If they (the delimitators) are always the same
> you could hard-code them, of course. Then it'll
> be very fast to invoke :)


Thanks, Yuri and Emanuel...  I've seen that a single MusiXTeX piece can be
considered as a tex paragraph, because no blank line should be inserted into
it...  So I can perform my replace-regexp with the `M-h' prefix so applying it
only to the current paragraph/piece...

Rodolfo