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/* CLI colorizing
Copyright (C) 2018-2019 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "cli/cli-cmds.h"
#include "cli/cli-style.h"
#include "source-cache.h"
#include "observable.h"
/* True if styling is enabled. */
#if defined (__MSDOS__) || defined (__CYGWIN__)
int cli_styling = 0;
#else
int cli_styling = 1;
#endif
/* True if source styling is enabled. Note that this is only
consulted when cli_styling is true. */
int source_styling = 1;
/* Name of colors; must correspond to ui_file_style::basic_color. */
static const char * const cli_colors[] = {
"none",
"black",
"red",
"green",
"yellow",
"blue",
"magenta",
"cyan",
"white",
nullptr
};
/* Names of intensities; must correspond to
ui_file_style::intensity. */
static const char * const cli_intensities[] = {
"normal",
"bold",
"dim",
nullptr
};
/* See cli-style.h. */
cli_style_option file_name_style (ui_file_style::GREEN);
/* See cli-style.h. */
cli_style_option function_name_style (ui_file_style::YELLOW);
/* See cli-style.h. */
cli_style_option variable_name_style (ui_file_style::CYAN);
/* See cli-style.h. */
cli_style_option address_style (ui_file_style::BLUE);
/* See cli-style.h. */
cli_style_option::cli_style_option (ui_file_style::basic_color fg)
: m_foreground (cli_colors[fg - ui_file_style::NONE]),
m_background (cli_colors[0]),
m_intensity (cli_intensities[ui_file_style::NORMAL])
{
}
/* Return the color number corresponding to COLOR. */
static int
color_number (const char *color)
{
for (int i = 0; i < ARRAY_SIZE (cli_colors); ++i)
{
if (color == cli_colors[i])
return i - 1;
}
gdb_assert_not_reached ("color not found");
}
/* See cli-style.h. */
ui_file_style
cli_style_option::style () const
{
int fg = color_number (m_foreground);
int bg = color_number (m_background);
ui_file_style::intensity intensity = ui_file_style::NORMAL;
for (int i = 0; i < ARRAY_SIZE (cli_intensities); ++i)
{
if (m_intensity == cli_intensities[i])
{
intensity = (ui_file_style::intensity) i;
break;
}
}
return ui_file_style (fg, bg, intensity);
}
/* See cli-style.h. */
void
cli_style_option::do_show_foreground (struct ui_file *file, int from_tty,
struct cmd_list_element *cmd,
const char *value)
{
const char *name = (const char *) get_cmd_context (cmd);
fprintf_filtered (file, _("The \"%s\" foreground color is: %s\n"),
name, value);
}
/* See cli-style.h. */
void
cli_style_option::do_show_background (struct ui_file *file, int from_tty,
struct cmd_list_element *cmd,
const char *value)
{
const char *name = (const char *) get_cmd_context (cmd);
fprintf_filtered (file, _("The \"%s\" background color is: %s\n"),
name, value);
}
/* See cli-style.h. */
void
cli_style_option::do_show_intensity (struct ui_file *file, int from_tty,
struct cmd_list_element *cmd,
const char *value)
{
const char *name = (const char *) get_cmd_context (cmd);
fprintf_filtered (file, _("The \"%s\" display intensity is: %s\n"),
name, value);
}
/* See cli-style.h. */
void
cli_style_option::add_setshow_commands (const char *name,
enum command_class theclass,
const char *prefix_doc,
struct cmd_list_element **set_list,
void (*do_set) (const char *args,
int from_tty),
struct cmd_list_element **show_list,
void (*do_show) (const char *args,
int from_tty))
{
m_set_prefix = std::string ("set style ") + name + " ";
m_show_prefix = std::string ("show style ") + name + " ";
add_prefix_cmd (name, no_class, do_set, prefix_doc, &m_set_list,
m_set_prefix.c_str (), 0, set_list);
add_prefix_cmd (name, no_class, do_show, prefix_doc, &m_show_list,
m_show_prefix.c_str (), 0, show_list);
add_setshow_enum_cmd ("foreground", theclass, cli_colors,
&m_foreground,
_("Set the foreground color for this property"),
_("Show the foreground color for this property"),
nullptr,
nullptr,
do_show_foreground,
&m_set_list, &m_show_list, (void *) name);
add_setshow_enum_cmd ("background", theclass, cli_colors,
&m_background,
_("Set the background color for this property"),
_("Show the background color for this property"),
nullptr,
nullptr,
do_show_background,
&m_set_list, &m_show_list, (void *) name);
add_setshow_enum_cmd ("intensity", theclass, cli_intensities,
&m_intensity,
_("Set the display intensity for this property"),
_("Show the display intensity for this property"),
nullptr,
nullptr,
do_show_intensity,
&m_set_list, &m_show_list, (void *) name);
}
static cmd_list_element *style_set_list;
static cmd_list_element *style_show_list;
static void
set_style (const char *arg, int from_tty)
{
printf_unfiltered (_("\"set style\" must be followed "
"by an appropriate subcommand.\n"));
help_list (style_set_list, "set style ", all_commands, gdb_stdout);
}
static void
show_style (const char *arg, int from_tty)
{
cmd_show_list (style_show_list, from_tty, "");
}
static void
set_style_enabled (const char *args, int from_tty, struct cmd_list_element *c)
{
g_source_cache.clear ();
gdb::observers::source_styling_changed.notify ();
}
static void
show_style_enabled (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
if (cli_styling)
fprintf_filtered (file, _("CLI output styling is enabled.\n"));
else
fprintf_filtered (file, _("CLI output styling is disabled.\n"));
}
static void
show_style_sources (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
if (source_styling)
fprintf_filtered (file, _("Source code styling is enabled.\n"));
else
fprintf_filtered (file, _("Source code styling is disabled.\n"));
}
void
_initialize_cli_style ()
{
add_prefix_cmd ("style", no_class, set_style, _("\
Style-specific settings\n\
Configure various style-related variables, such as colors"),
&style_set_list, "set style ", 0, &setlist);
add_prefix_cmd ("style", no_class, show_style, _("\
Style-specific settings\n\
Configure various style-related variables, such as colors"),
&style_show_list, "show style ", 0, &showlist);
add_setshow_boolean_cmd ("enabled", no_class, &cli_styling, _("\
Set whether CLI styling is enabled."), _("\
Show whether CLI is enabled."), _("\
If enabled, output to the terminal is styled."),
set_style_enabled, show_style_enabled,
&style_set_list, &style_show_list);
add_setshow_boolean_cmd ("sources", no_class, &source_styling, _("\
Set whether source code styling is enabled."), _("\
Show whether source code styling is enabled."), _("\
If enabled, source code is styled.\n"
#ifdef HAVE_SOURCE_HIGHLIGHT
"Note that source styling only works if styling in general is enabled,\n\
see \"show style enabled\"."
#else
"Source highlighting is disabled in this installation of gdb, because\n\
it was not linked against GNU Source Highlight."
#endif
), set_style_enabled, show_style_sources,
&style_set_list, &style_show_list);
#define STYLE_ADD_SETSHOW_COMMANDS(STYLE, NAME, PREFIX_DOC) \
STYLE.add_setshow_commands (NAME, no_class, PREFIX_DOC, \
&style_set_list, \
[] (const char *args, int from_tty) \
{ \
help_list \
(STYLE.set_list (), \
"set style " NAME " ", \
all_commands, \
gdb_stdout); \
}, \
&style_show_list, \
[] (const char *args, int from_tty) \
{ \
cmd_show_list \
(STYLE.show_list (), \
from_tty, \
""); \
})
STYLE_ADD_SETSHOW_COMMANDS (file_name_style, "filename",
_("\
Filename display styling\n\
Configure filename colors and display intensity."));
STYLE_ADD_SETSHOW_COMMANDS (function_name_style, "function",
_("\
Function name display styling\n\
Configure function name colors and display intensity"));
STYLE_ADD_SETSHOW_COMMANDS (variable_name_style, "variable",
_("\
Variable name display styling\n\
Configure variable name colors and display intensity"));
STYLE_ADD_SETSHOW_COMMANDS (address_style, "address",
_("\
Address display styling\n\
Configure address colors and display intensity"));
}
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