425 lines
12 KiB
C
425 lines
12 KiB
C
/* CLI colorizing
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Copyright (C) 2018-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "cli/cli-cmds.h"
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#include "cli/cli-style.h"
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#include "source-cache.h"
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#include "observable.h"
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/* True if styling is enabled. */
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#if defined (__MSDOS__)
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bool cli_styling = false;
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#else
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bool cli_styling = true;
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#endif
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/* True if source styling is enabled. Note that this is only
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consulted when cli_styling is true. */
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bool source_styling = true;
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/* Name of colors; must correspond to ui_file_style::basic_color. */
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static const char * const cli_colors[] = {
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"none",
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"black",
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"red",
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"green",
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"yellow",
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"blue",
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"magenta",
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"cyan",
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"white",
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nullptr
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};
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/* Names of intensities; must correspond to
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ui_file_style::intensity. */
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static const char * const cli_intensities[] = {
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"normal",
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"bold",
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"dim",
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nullptr
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};
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/* See cli-style.h. */
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cli_style_option file_name_style ("filename", ui_file_style::GREEN);
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/* See cli-style.h. */
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cli_style_option function_name_style ("function", ui_file_style::YELLOW);
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/* See cli-style.h. */
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cli_style_option variable_name_style ("variable", ui_file_style::CYAN);
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/* See cli-style.h. */
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cli_style_option address_style ("address", ui_file_style::BLUE);
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/* See cli-style.h. */
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cli_style_option highlight_style ("highlight", ui_file_style::RED);
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/* See cli-style.h. */
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cli_style_option title_style ("title", ui_file_style::BOLD);
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/* See cli-style.h. */
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cli_style_option tui_border_style ("tui-border", ui_file_style::CYAN);
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/* See cli-style.h. */
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cli_style_option tui_active_border_style ("tui-active-border",
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ui_file_style::CYAN);
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/* See cli-style.h. */
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cli_style_option metadata_style ("metadata", ui_file_style::DIM);
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/* See cli-style.h. */
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cli_style_option::cli_style_option (const char *name,
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ui_file_style::basic_color fg)
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: changed (name),
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m_name (name),
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m_foreground (cli_colors[fg - ui_file_style::NONE]),
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m_background (cli_colors[0]),
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m_intensity (cli_intensities[ui_file_style::NORMAL])
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{
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}
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/* See cli-style.h. */
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cli_style_option::cli_style_option (const char *name,
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ui_file_style::intensity i)
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: changed (name),
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m_name (name),
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m_foreground (cli_colors[0]),
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m_background (cli_colors[0]),
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m_intensity (cli_intensities[i])
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{
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}
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/* Return the color number corresponding to COLOR. */
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static int
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color_number (const char *color)
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{
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for (int i = 0; i < ARRAY_SIZE (cli_colors); ++i)
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{
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if (color == cli_colors[i])
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return i - 1;
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}
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gdb_assert_not_reached ("color not found");
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}
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/* See cli-style.h. */
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ui_file_style
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cli_style_option::style () const
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{
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int fg = color_number (m_foreground);
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int bg = color_number (m_background);
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ui_file_style::intensity intensity = ui_file_style::NORMAL;
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for (int i = 0; i < ARRAY_SIZE (cli_intensities); ++i)
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{
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if (m_intensity == cli_intensities[i])
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{
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intensity = (ui_file_style::intensity) i;
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break;
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}
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}
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return ui_file_style (fg, bg, intensity);
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}
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/* See cli-style.h. */
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void
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cli_style_option::do_set_value (const char *ignore, int from_tty,
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struct cmd_list_element *cmd)
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{
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cli_style_option *cso = (cli_style_option *) get_cmd_context (cmd);
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cso->changed.notify ();
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}
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/* Implements the cli_style_option::do_show_* functions.
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WHAT and VALUE are the property and value to show.
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The style for which WHAT is shown is retrieved from CMD context. */
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static void
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do_show (const char *what, struct ui_file *file,
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struct cmd_list_element *cmd,
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const char *value)
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{
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cli_style_option *cso = (cli_style_option *) get_cmd_context (cmd);
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fputs_filtered (_("The "), file);
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fprintf_styled (file, cso->style (), _("\"%s\" style"), cso->name ());
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fprintf_filtered (file, _(" %s is: %s\n"), what, value);
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}
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/* See cli-style.h. */
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void
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cli_style_option::do_show_foreground (struct ui_file *file, int from_tty,
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struct cmd_list_element *cmd,
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const char *value)
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{
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do_show (_("foreground color"), file, cmd, value);
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}
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/* See cli-style.h. */
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void
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cli_style_option::do_show_background (struct ui_file *file, int from_tty,
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struct cmd_list_element *cmd,
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const char *value)
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{
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do_show (_("background color"), file, cmd, value);
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}
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/* See cli-style.h. */
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void
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cli_style_option::do_show_intensity (struct ui_file *file, int from_tty,
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struct cmd_list_element *cmd,
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const char *value)
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{
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do_show (_("display intensity"), file, cmd, value);
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}
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/* See cli-style.h. */
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void
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cli_style_option::add_setshow_commands (enum command_class theclass,
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const char *prefix_doc,
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struct cmd_list_element **set_list,
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void (*do_set) (const char *args,
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int from_tty),
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struct cmd_list_element **show_list,
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void (*do_show) (const char *args,
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int from_tty),
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bool skip_intensity)
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{
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m_set_prefix = std::string ("set style ") + m_name + " ";
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m_show_prefix = std::string ("show style ") + m_name + " ";
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add_prefix_cmd (m_name, no_class, do_set, prefix_doc, &m_set_list,
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m_set_prefix.c_str (), 0, set_list);
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add_prefix_cmd (m_name, no_class, do_show, prefix_doc, &m_show_list,
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m_show_prefix.c_str (), 0, show_list);
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add_setshow_enum_cmd ("foreground", theclass, cli_colors,
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&m_foreground,
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_("Set the foreground color for this property."),
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_("Show the foreground color for this property."),
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nullptr,
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do_set_value,
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do_show_foreground,
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&m_set_list, &m_show_list, (void *) this);
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add_setshow_enum_cmd ("background", theclass, cli_colors,
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&m_background,
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_("Set the background color for this property."),
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_("Show the background color for this property."),
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nullptr,
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do_set_value,
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do_show_background,
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&m_set_list, &m_show_list, (void *) this);
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if (!skip_intensity)
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add_setshow_enum_cmd ("intensity", theclass, cli_intensities,
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&m_intensity,
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_("Set the display intensity for this property."),
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_("Show the display intensity for this property."),
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nullptr,
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do_set_value,
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do_show_intensity,
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&m_set_list, &m_show_list, (void *) this);
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}
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static cmd_list_element *style_set_list;
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static cmd_list_element *style_show_list;
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static void
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set_style (const char *arg, int from_tty)
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{
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printf_unfiltered (_("\"set style\" must be followed "
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"by an appropriate subcommand.\n"));
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help_list (style_set_list, "set style ", all_commands, gdb_stdout);
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}
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static void
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show_style (const char *arg, int from_tty)
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{
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cmd_show_list (style_show_list, from_tty, "");
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}
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static void
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set_style_enabled (const char *args, int from_tty, struct cmd_list_element *c)
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{
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g_source_cache.clear ();
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gdb::observers::source_styling_changed.notify ();
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}
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static void
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show_style_enabled (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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{
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if (cli_styling)
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fprintf_filtered (file, _("CLI output styling is enabled.\n"));
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else
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fprintf_filtered (file, _("CLI output styling is disabled.\n"));
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}
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static void
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show_style_sources (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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{
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if (source_styling)
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fprintf_filtered (file, _("Source code styling is enabled.\n"));
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else
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fprintf_filtered (file, _("Source code styling is disabled.\n"));
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}
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/* Builds the "set style NAME " prefix. */
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static std::string
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set_style_name (const char *name)
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{
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std::string result ("set style ");
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result += name;
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result += " ";
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return result;
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}
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void _initialize_cli_style ();
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void
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_initialize_cli_style ()
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{
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add_prefix_cmd ("style", no_class, set_style, _("\
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Style-specific settings.\n\
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Configure various style-related variables, such as colors"),
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&style_set_list, "set style ", 0, &setlist);
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add_prefix_cmd ("style", no_class, show_style, _("\
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Style-specific settings.\n\
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Configure various style-related variables, such as colors"),
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&style_show_list, "show style ", 0, &showlist);
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add_setshow_boolean_cmd ("enabled", no_class, &cli_styling, _("\
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Set whether CLI styling is enabled."), _("\
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Show whether CLI is enabled."), _("\
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If enabled, output to the terminal is styled."),
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set_style_enabled, show_style_enabled,
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&style_set_list, &style_show_list);
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add_setshow_boolean_cmd ("sources", no_class, &source_styling, _("\
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Set whether source code styling is enabled."), _("\
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Show whether source code styling is enabled."), _("\
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If enabled, source code is styled.\n"
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#ifdef HAVE_SOURCE_HIGHLIGHT
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"Note that source styling only works if styling in general is enabled,\n\
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see \"show style enabled\"."
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#else
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"Source highlighting is disabled in this installation of gdb, because\n\
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it was not linked against GNU Source Highlight."
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#endif
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), set_style_enabled, show_style_sources,
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&style_set_list, &style_show_list);
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#define STYLE_ADD_SETSHOW_COMMANDS(STYLE, PREFIX_DOC, SKIP) \
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STYLE.add_setshow_commands (no_class, PREFIX_DOC, \
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&style_set_list, \
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[] (const char *args, int from_tty) \
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{ \
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help_list \
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(STYLE.set_list (), \
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set_style_name (STYLE.name ()).c_str (), \
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all_commands, \
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gdb_stdout); \
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}, \
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&style_show_list, \
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[] (const char *args, int from_tty) \
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{ \
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cmd_show_list \
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(STYLE.show_list (), \
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from_tty, \
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""); \
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}, SKIP)
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STYLE_ADD_SETSHOW_COMMANDS (file_name_style,
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_("\
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Filename display styling.\n\
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Configure filename colors and display intensity."), false);
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STYLE_ADD_SETSHOW_COMMANDS (function_name_style,
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_("\
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Function name display styling.\n\
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Configure function name colors and display intensity"), false);
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STYLE_ADD_SETSHOW_COMMANDS (variable_name_style,
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_("\
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Variable name display styling.\n\
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Configure variable name colors and display intensity"), false);
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STYLE_ADD_SETSHOW_COMMANDS (address_style,
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_("\
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Address display styling.\n\
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Configure address colors and display intensity"), false);
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STYLE_ADD_SETSHOW_COMMANDS (title_style,
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_("\
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Title display styling.\n\
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Configure title colors and display intensity\n\
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Some commands (such as \"apropos -v REGEXP\") use the title style to improve\n\
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readability."), false);
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STYLE_ADD_SETSHOW_COMMANDS (highlight_style,
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_("\
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Highlight display styling.\n\
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Configure highlight colors and display intensity\n\
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Some commands use the highlight style to draw the attention to a part\n\
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of their output."), false);
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STYLE_ADD_SETSHOW_COMMANDS (metadata_style,
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_("\
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Metadata display styling.\n\
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Configure metadata colors and display intensity\n\
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The \"metadata\" style is used when GDB displays information about\n\
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your data, for example \"<unavailable>\""), false);
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STYLE_ADD_SETSHOW_COMMANDS (tui_border_style,
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_("\
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TUI border display styling.\n\
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Configure TUI border colors\n\
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The \"tui-border\" style is used when GDB displays the border of a\n\
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TUI window that does not have the focus."), true);
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STYLE_ADD_SETSHOW_COMMANDS (tui_active_border_style,
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_("\
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TUI active border display styling.\n\
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Configure TUI active border colors\n\
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The \"tui-active-border\" style is used when GDB displays the border of a\n\
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TUI window that does have the focus."), true);
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}
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