bug#28008: 25.2; Resume kmacro definition errors C-u C-u <F3>

[Tino Calancha]

Tino Calancha <tino.calancha@gmail.com> writes:

> On Fri, 11 Aug 2017, Eli Zaretskii wrote:
>
>>>  ** Patch 1 always save the macro in `last-kbd-macro' after an error or 
>>> 'C-g'.
>>>     Then, A. B. and D.2 behaves similarly.
> Actually, the patch#1 is quite short: i included a docstring fix from
> the patch#2 by mistake.
The commit message of patch#1 got too verbose.  It shouldn't mention
about 'last-aborted-kbd-macro' (that variable belongs to patch#2):
Following is a revisede commit message for patch#1:
--8<-----------------------------cut here---------------start------------->8---
Save aborted kbd macro definitions

While a defining a kbd macro, if we get an error or if the user inputs C-g,
then save the aborted kbd macro record (Bug#28008).

* lisp/kmacro.el (kmacro-start-macro): Signal an error if APPEND is non-nil
and last-kbd-macro is nil.

* src/keyboard.c (cmd_error): Increase buffer size for macroerror
to accommodate new error message.
If we are defining a kbd macro and we got an error, then save the
current progress in last-kbd-macro.

* src/macros.c (save_aborted_kbd_macro): New function.
(store_kbd_macro_char): Call save_aborted_kbd_macro when user inputs C-g.
--8<-----------------------------cut here---------------end--------------->8---