bug#14726: 24.3.50; (emacs) `Search Case'

[Lars Ingebrigtsen <larsi@gnus.org>]

Drew Adams <drew.adams@oracle.com> writes:

> The text does not make clear that `M-c' can be used to toggle case
> sensitivity even when `case-fold-search' is nil.
>
> This is the current order, and all that is said:
>
> 1. Explanation of default behavior (i.e., when `case-fold-search' is
> non-nil).
>
> 2. Mention that `M-c' toggles case-sensitivity.
>
> 3. Statement that setting `case-fold-search' to nil makes all letters
> match exactly.
>
> #3 is emphatic: all lettes must match exactly.  I.e., the impression can
> be given that #3 is independent of `M-c'.

Just rearranging the paragraphs seems to fix that impression, so I've
done that on the trunk.

> 4. And there is no explanation that #1 is the default case, which
> *corresponds to non-nil `case-fold-search'*.

It seems self-evident that when the manual says

  If you set the variable @code{case-fold-search} to @code{nil}, then
all letters must match exactly, including case.  

you're changing things from the default.

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