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bug#25302: 25.1; `isearch-allow-prefix' does not allow `C-u C-u'
From: |
Drew Adams |
Subject: |
bug#25302: 25.1; `isearch-allow-prefix' does not allow `C-u C-u' |
Date: |
Fri, 30 Dec 2016 14:08:32 -0800 (PST) |
1. emacs -Q
2. Ensure that `isearch-allow-prefix' is non-nil, which it is by default.
3. Search for anything, such as character `e', then hit `C-u C-u':
C-s e C-u C-u
The second `C-u' terminates Isearch. It should not. The raw prefix arg
`(16)' should be passed through to whatever command is invoked by the
next key sequence.
The second `C-u' acts as if `isearch-allow-prefix' were nil.
Note that in Emacs 23, if `isearch-allow-scroll' is non-nil then `C-u
C-u' is passed through OK. (In Emacs 23, `isearch-allow-prefix' does
not exist.)
But in Emacs 24.4 and later even the workaround of setting
`isearch-allow-scroll' to `t' does not work, to correct the
prefix-arg problem. The second `C-u' always exits Isearch.
So this is a regression wrt that workaround. The regression was introduced in
Emacs 24.4, which is also when `isearch-allow-prefix'
was introduced.
In GNU Emacs 25.1.1 (x86_64-w64-mingw32)
of 2016-09-17 built on LAPHROAIG
Windowing system distributor 'Microsoft Corp.', version 6.1.7601
Configured using:
'configure --without-dbus --without-compress-install CFLAGS=-static'
- bug#25302: 25.1; `isearch-allow-prefix' does not allow `C-u C-u',
Drew Adams <=