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Re: Calling occur from within isearch

From: Johan Bockgård
Subject: Re: Calling occur from within isearch
Date: Tue, 04 Dec 2007 02:24:39 +0100
User-agent: Gnus/5.110007 (No Gnus v0.7) Emacs/23.0.50 (gnu/linux)

Juri Linkov <address@hidden> writes:

> What is ugly is that the distinction between `yes' and `t' is
> mentioned only in the comments of `isearch-case-fold-search' as if
> they were "unofficial" values:

I think they are.  isearch-case-fold-search is an internal detail of

> If these values are valid, then perhaps they should be documented in
> the docstrings of `isearch-case-fold-search'

...it doesn't even *have* a doc string.

> saying that the distinction between `yes' and `t' is valid for some
> searching interactive commands.

I can't see how this distinction is at all useful for the user.
`search-uppercase' already provides a (the) way to decide whether "mixed
case in the search string [should be] ignored":

    (if (and case-fold-search search-upper-case)
        (isearch-no-upper-case-p regexp t)

In the case of occur from within isearch, the current value of
isearch-case-fold-search will make searching find the right matches--if
occur does *not* look at the case of the input again

    (let ((case-fold-search isearch-case-fold-search)
          (search-upper-case nil))
      (occur regexp nlines))

Johan Bockgård

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