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* NEWS: Updated.

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* event-loop.c (start_event_loop): Call
	after_char_processing_hook.
	* event-top.h (after_char_processing_hook): Declare.
	* event-top.c (rl_callback_read_char_wrapper): Call
	after_char_processing_hook.
	(after_char_processing_hook): New global.
	* top.c (operate_saved_history): New global.
	(gdb_rl_operate_and_get_next): New function.
	(init_main): Add the operate-and-get-next defun.
	(gdb_rl_operate_and_get_next_completion): New function.
This commit is contained in:
Tom Tromey
2001-11-27 04:15:09 +00:00
parent 88118b3abf
commit 467d85198f
6 changed files with 83 additions and 0 deletions
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50
gdb/top.c
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@ -1035,6 +1035,52 @@ init_signals (void)
#endif
}
/* The current saved history number from operate-and-get-next.
This is -1 if not valid. */
static int operate_saved_history = -1;
/* This is put on the appropriate hook and helps operate-and-get-next
do its work. */
void
gdb_rl_operate_and_get_next_completion ()
{
int delta = where_history () - operate_saved_history;
/* The `key' argument to rl_get_previous_history is ignored. */
rl_get_previous_history (delta, 0);
operate_saved_history = -1;
/* readline doesn't automatically update the display for us. */
rl_redisplay ();
after_char_processing_hook = NULL;
rl_pre_input_hook = NULL;
}
/* This is a gdb-local readline command handler. It accepts the
current command line (like RET does) and, if this command was taken
from the history, arranges for the next command in the history to
appear on the command line when the prompt returns.
We ignore the arguments. */
static int
gdb_rl_operate_and_get_next (int count, int key)
{
if (event_loop_p)
{
/* Use the async hook. */
after_char_processing_hook = gdb_rl_operate_and_get_next_completion;
}
else
{
/* This hook only works correctly when we are using the
synchronous readline. */
rl_pre_input_hook = (Function *) gdb_rl_operate_and_get_next_completion;
}
/* Add 1 because we eventually want the next line. */
operate_saved_history = where_history () + 1;
return rl_newline (1, key);
}
/* Read one line from the command input stream `instream'
into the local static buffer `linebuffer' (whose current length
is `linelength').
@ -1880,6 +1926,10 @@ init_main (void)
rl_completer_quote_characters = get_gdb_completer_quote_characters ();
rl_readline_name = "gdb";
/* The name for this defun comes from Bash, where it originated.
15 is Control-o, the same binding this function has in Bash. */
rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15);
/* The set prompt command is different depending whether or not the
async version is run. NOTE: this difference is going to
disappear as we make the event loop be the default engine of