Re: Calling occur from within isearch

[Juri Linkov <juri@jurta.org>]

>> !  (if (and (eq case-fold-search t) search-upper-case)
>> !      (isearch-no-upper-case-p regexp t)
>> !    case-fold-search)
>
> This seems kind of ugly.  The documentation for case-fold-search doesn't
> talk about any special meaning of a non-nil, non-t value.

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:

    ; case-fold-search while searching.
    ;   either nil, t, or 'yes.  'yes means the same as t except that mixed
    ;   case in the search string is ignored.
    (defvar isearch-case-fold-search nil)

If these values are valid, then perhaps they should be documented in the
docstrings of `isearch-case-fold-search' and `case-fold-search' saying
that the distinction between `yes' and `t' is valid for some searching
interactive commands.

-- 
Juri Linkov
http://www.jurta.org/emacs/