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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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4
gdb/utils.h
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@ -439,6 +439,10 @@ extern void fputs_styled (const char *linebuffer,
const ui_file_style &style,
struct ui_file *stream);
/* Reset the terminal style to the default, if needed. */
extern void reset_terminal_style (struct ui_file *stream);
/* Display the host ADDR on STREAM formatted as ``0x%x''. */
extern void gdb_print_host_address_1 (const void *addr, struct ui_file *stream);