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Reset terminal styles

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This adds a function that can be used to reset terminal styles,
regardless of what style the low-level output routines currently think
is applied.

This is used to make "echo" and "printf" work properly when emitting
ANSI terminal escapes -- now gdb will reset the style at the end of
the command.

gdb/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* utils.h (reset_terminal_style): Declare.
	* utils.c (can_emit_style_escape): New function.
	(set_output_style): Use it.
	(reset_terminal_style): New function.
	* printcmd.c (printf_command): Call reset_terminal_style.
	* cli/cli-cmds.c (echo_command): Call reset_terminal_style.
This commit is contained in:
Tom Tromey 2018-11-17 11:49:25 -07:00
parent cbe5657196
commit ef1dfa3644
5 changed files with 49 additions and 7 deletions
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2
gdb/cli/cli-cmds.c
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@ -689,6 +689,8 @@ echo_command (const char *text, int from_tty)
printf_filtered ("%c", c);
}
reset_terminal_style (gdb_stdout);
/* Force this output to appear now. */
wrap_here ("");
gdb_flush (gdb_stdout);