/src/core/wee-config.c

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/*
 * Copyright (C) 2003-2012 Sebastien Helleu <flashcode@flashtux.org>
 * Copyright (C) 2005-2006 Emmanuel Bouthenot <kolter@openics.org>
 *
 * This file is part of WeeChat, the extensible chat client.
 *
 * WeeChat 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.
 *
 * WeeChat 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 WeeChat.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * wee-config.c: WeeChat configuration options (file weechat.conf)
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <regex.h>

#include "weechat.h"
#include "wee-config.h"
#include "wee-hook.h"
#include "wee-log.h"
#include "wee-network.h"
#include "wee-utf8.h"
#include "wee-util.h"
#include "wee-list.h"
#include "wee-proxy.h"
#include "wee-string.h"
#include "../gui/gui-bar.h"
#include "../gui/gui-buffer.h"
#include "../gui/gui-chat.h"
#include "../gui/gui-color.h"
#include "../gui/gui-filter.h"
#include "../gui/gui-hotlist.h"
#include "../gui/gui-key.h"
#include "../gui/gui-layout.h"
#include "../gui/gui-line.h"
#include "../gui/gui-main.h"
#include "../gui/gui-mouse.h"
#include "../gui/gui-nicklist.h"
#include "../gui/gui-window.h"
#include "../plugins/plugin.h"


struct t_config_file *weechat_config_file = NULL;
struct t_config_section *weechat_config_section_debug = NULL;
struct t_config_section *weechat_config_section_color = NULL;
struct t_config_section *weechat_config_section_proxy = NULL;
struct t_config_section *weechat_config_section_bar = NULL;
struct t_config_section *weechat_config_section_notify = NULL;

/* config, startup section */

struct t_config_option *config_startup_command_after_plugins;
struct t_config_option *config_startup_command_before_plugins;
struct t_config_option *config_startup_display_logo;
struct t_config_option *config_startup_display_version;

/* config, look & feel section */

struct t_config_option *config_look_align_end_of_lines;
struct t_config_option *config_look_bar_more_left;
struct t_config_option *config_look_bar_more_right;
struct t_config_option *config_look_bar_more_up;
struct t_config_option *config_look_bar_more_down;
struct t_config_option *config_look_buffer_notify_default;
struct t_config_option *config_look_buffer_time_format;
struct t_config_option *config_look_color_basic_force_bold;
struct t_config_option *config_look_color_inactive_window;
struct t_config_option *config_look_color_inactive_buffer;
struct t_config_option *config_look_color_inactive_time;
struct t_config_option *config_look_color_inactive_prefix_buffer;
struct t_config_option *config_look_color_inactive_prefix;
struct t_config_option *config_look_color_inactive_message;
struct t_config_option *config_look_color_pairs_auto_reset;
struct t_config_option *config_look_color_real_white;
struct t_config_option *config_look_command_chars;
struct t_config_option *config_look_confirm_quit;
struct t_config_option *config_look_day_change;
struct t_config_option *config_look_day_change_time_format;
struct t_config_option *config_look_eat_newline_glitch;
struct t_config_option *config_look_highlight;
struct t_config_option *config_look_highlight_regex;
struct t_config_option *config_look_highlight_tags;
struct t_config_option *config_look_hotlist_add_buffer_if_away;
struct t_config_option *config_look_hotlist_buffer_separator;
struct t_config_option *config_look_hotlist_count_max;
struct t_config_option *config_look_hotlist_count_min_msg;
struct t_config_option *config_look_hotlist_names_count;
struct t_config_option *config_look_hotlist_names_length;
struct t_config_option *config_look_hotlist_names_level;
struct t_config_option *config_look_hotlist_names_merged_buffers;
struct t_config_option *config_look_hotlist_short_names;
struct t_config_option *config_look_hotlist_sort;
struct t_config_option *config_look_hotlist_unique_numbers;
struct t_config_option *config_look_input_cursor_scroll;
struct t_config_option *config_look_input_share;
struct t_config_option *config_look_input_share_overwrite;
struct t_config_option *config_look_input_undo_max;
struct t_config_option *config_look_item_time_format;
struct t_config_option *config_look_item_buffer_filter;
struct t_config_option *config_look_jump_current_to_previous_buffer;
struct t_config_option *config_look_jump_previous_buffer_when_closing;
struct t_config_option *config_look_mouse;
struct t_config_option *config_look_mouse_timer_delay;
struct t_config_option *config_look_nickmode;
struct t_config_option *config_look_nickmode_empty;
struct t_config_option *config_look_paste_bracketed;
struct t_config_option *config_look_paste_bracketed_timer_delay;
struct t_config_option *config_look_paste_max_lines;
struct t_config_option *config_look_prefix[GUI_CHAT_NUM_PREFIXES];
struct t_config_option *config_look_prefix_align;
struct t_config_option *config_look_prefix_align_max;
struct t_config_option *config_look_prefix_align_min;
struct t_config_option *config_look_prefix_align_more;
struct t_config_option *config_look_prefix_buffer_align;
struct t_config_option *config_look_prefix_buffer_align_max;
struct t_config_option *config_look_prefix_buffer_align_more;
struct t_config_option *config_look_prefix_same_nick;
struct t_config_option *config_look_prefix_suffix;
struct t_config_option *config_look_read_marker;
struct t_config_option *config_look_read_marker_always_show;
struct t_config_option *config_look_read_marker_string;
struct t_config_option *config_look_save_config_on_exit;
struct t_config_option *config_look_save_layout_on_exit;
struct t_config_option *config_look_scroll_amount;
struct t_config_option *config_look_scroll_bottom_after_switch;
struct t_config_option *config_look_scroll_page_percent;
struct t_config_option *config_look_search_text_not_found_alert;
struct t_config_option *config_look_separator_horizontal;
struct t_config_option *config_look_separator_vertical;
struct t_config_option *config_look_set_title;
struct t_config_option *config_look_time_format;

/* config, colors section */

struct t_config_option *config_color_separator;
struct t_config_option *config_color_bar_more;
struct t_config_option *config_color_chat;
struct t_config_option *config_color_chat_bg;
struct t_config_option *config_color_chat_inactive_window;
struct t_config_option *config_color_chat_inactive_buffer;
struct t_config_option *config_color_chat_time;
struct t_config_option *config_color_chat_time_delimiters;
struct t_config_option *config_color_chat_prefix_buffer;
struct t_config_option *config_color_chat_prefix_buffer_inactive_buffer;
struct t_config_option *config_color_chat_prefix[GUI_CHAT_NUM_PREFIXES];
struct t_config_option *config_color_chat_prefix_more;
struct t_config_option *config_color_chat_prefix_suffix;
struct t_config_option *config_color_chat_buffer;
struct t_config_option *config_color_chat_server;
struct t_config_option *config_color_chat_channel;
struct t_config_option *config_color_chat_nick;
struct t_config_option *config_color_chat_nick_colors;
struct t_config_option *config_color_chat_nick_self;
struct t_config_option *config_color_chat_nick_other;
struct t_config_option *config_color_chat_host;
struct t_config_option *config_color_chat_delimiters;
struct t_config_option *config_color_chat_highlight;
struct t_config_option *config_color_chat_highlight_bg;
struct t_config_option *config_color_chat_read_marker;
struct t_config_option *config_color_chat_read_marker_bg;
struct t_config_option *config_color_chat_tags;
struct t_config_option *config_color_chat_text_found;
struct t_config_option *config_color_chat_text_found_bg;
struct t_config_option *config_color_chat_value;
struct t_config_option *config_color_status_number;
struct t_config_option *config_color_status_name;
struct t_config_option *config_color_status_name_ssl;
struct t_config_option *config_color_status_filter;
struct t_config_option *config_color_status_data_msg;
struct t_config_option *config_color_status_data_private;
struct t_config_option *config_color_status_data_highlight;
struct t_config_option *config_color_status_data_other;
struct t_config_option *config_color_status_count_msg;
struct t_config_option *config_color_status_count_private;
struct t_config_option *config_color_status_count_highlight;
struct t_config_option *config_color_status_count_other;
struct t_config_option *config_color_status_more;
struct t_config_option *config_color_status_time;
struct t_config_option *config_color_input_text_not_found;
struct t_config_option *config_color_input_actions;
struct t_config_option *config_color_nicklist_group;
struct t_config_option *config_color_nicklist_away;
struct t_config_option *config_color_nicklist_offline;

/* config, completion section */

struct t_config_option *config_completion_base_word_until_cursor;
struct t_config_option *config_completion_default_template;
struct t_config_option *config_completion_nick_add_space;
struct t_config_option *config_completion_nick_completer;
struct t_config_option *config_completion_nick_first_only;
struct t_config_option *config_completion_nick_ignore_chars;
struct t_config_option *config_completion_partial_completion_alert;
struct t_config_option *config_completion_partial_completion_command;
struct t_config_option *config_completion_partial_completion_command_arg;
struct t_config_option *config_completion_partial_completion_other;
struct t_config_option *config_completion_partial_completion_count;

/* config, history section */

struct t_config_option *config_history_max_buffer_lines_number;
struct t_config_option *config_history_max_buffer_lines_minutes;
struct t_config_option *config_history_max_commands;
struct t_config_option *config_history_max_visited_buffers;
struct t_config_option *config_history_display_default;

/* config, network section */

struct t_config_option *config_network_connection_timeout;
struct t_config_option *config_network_gnutls_ca_file;
struct t_config_option *config_network_gnutls_handshake_timeout;

/* config, plugin section */

struct t_config_option *config_plugin_autoload;
struct t_config_option *config_plugin_debug;
struct t_config_option *config_plugin_extension;
struct t_config_option *config_plugin_path;
struct t_config_option *config_plugin_save_config_on_unload;

/* other */

int config_length_prefix_same_nick = 0;
struct t_hook *config_day_change_timer = NULL;
int config_day_change_old_day = -1;
regex_t *config_highlight_regex = NULL;
char **config_highlight_tags = NULL;
int config_num_highlight_tags = 0;
char **config_plugin_extensions = NULL;
int config_num_plugin_extensions = 0;


/*
 * config_change_save_config_on_exit: called when "save_config_on_exit" flag is changed
 */

void
config_change_save_config_on_exit (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (gui_init_ok && !CONFIG_BOOLEAN(config_look_save_config_on_exit))
    {
        gui_chat_printf (NULL,
                         _("Warning: you should now issue /save to write "
                           "\"save_config_on_exit\" option in configuration "
                           "file"));
    }
}

/*
 * config_change_title: called when title is changed
 */

void
config_change_title (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (CONFIG_BOOLEAN(config_look_set_title))
        gui_window_set_title (PACKAGE_NAME " " PACKAGE_VERSION);
}

/*
 * config_change_buffers: called when buffers change (for example nicklist)
 */

void
config_change_buffers (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_window_ask_refresh (1);
}

/*
 * config_change_buffer_content: called when content of a buffer changes
 */

void
config_change_buffer_content (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (gui_init_ok)
        gui_current_window->refresh_needed = 1;
}

/*
 * config_change_mouse: called when mouse state is changed
 */

void
config_change_mouse (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (gui_init_ok)
    {
        if (CONFIG_BOOLEAN(config_look_mouse))
            gui_mouse_enable ();
        else
            gui_mouse_disable ();
    }
}

/*
 * config_change_buffer_notify_default: called when buffer default notify changes
 */

void
config_change_buffer_notify_default (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_buffer_notify_set_all ();
}

/*
 * config_change_buffer_time_format: called when buffer time format changes
 */

void
config_change_buffer_time_format (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_chat_time_length = gui_chat_get_time_length ();
    gui_chat_change_time_format ();
    if (gui_init_ok)
        gui_window_ask_refresh (1);
}

/*
 * config_compute_prefix_max_length_all_buffers: compute the "prefix_max_length"
 *                                               on all buffers
 */

void
config_compute_prefix_max_length_all_buffers ()
{
    struct t_gui_buffer *ptr_buffer;

    for (ptr_buffer = gui_buffers; ptr_buffer;
         ptr_buffer = ptr_buffer->next_buffer)
    {
        if (ptr_buffer->own_lines)
            gui_line_compute_prefix_max_length (ptr_buffer->own_lines);
        if (ptr_buffer->mixed_lines)
            gui_line_compute_prefix_max_length (ptr_buffer->mixed_lines);
    }
}

/*
 * config_change_prefix_same_nick: called when "prefix for same nick" changes
 */

void
config_change_prefix_same_nick (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    config_length_prefix_same_nick =
        gui_chat_strlen_screen (CONFIG_STRING(config_look_prefix_same_nick));

    config_compute_prefix_max_length_all_buffers ();
    gui_window_ask_refresh (1);
}

/*
 * config_change_eat_newline_glitch: called when eat_newline_glitch changes
 */

void
config_change_eat_newline_glitch (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (gui_init_ok)
    {
        if (CONFIG_BOOLEAN(config_look_eat_newline_glitch))
        {
            gui_chat_printf (NULL,
                             _("WARNING: this option can cause serious display "
                               "bugs, if you have such problems, you must "
                               "turn off this option."));
            gui_term_set_eat_newline_glitch (0);
        }
        else
            gui_term_set_eat_newline_glitch (1);
    }
}

/*
 * config_change_highlight_regex: called when highlight_regex changes
 */

void
config_change_highlight_regex (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (config_highlight_regex)
    {
        regfree (config_highlight_regex);
        free (config_highlight_regex);
        config_highlight_regex = NULL;
    }

    if (CONFIG_STRING(config_look_highlight_regex)
        && CONFIG_STRING(config_look_highlight_regex)[0])
    {
        config_highlight_regex = malloc (sizeof (*config_highlight_regex));
        if (config_highlight_regex)
        {
            if (string_regcomp (config_highlight_regex,
                                CONFIG_STRING(config_look_highlight_regex),
                                REG_EXTENDED | REG_ICASE) != 0)
            {
                free (config_highlight_regex);
                config_highlight_regex = NULL;
            }
        }
    }
}

/*
 * config_change_highlight_tags: called when highlight_tags changes
 */

void
config_change_highlight_tags (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (config_highlight_tags)
    {
        string_free_split (config_highlight_tags);
        config_highlight_tags = NULL;
    }
    config_num_highlight_tags = 0;

    if (CONFIG_STRING(config_look_highlight_tags)
        && CONFIG_STRING(config_look_highlight_tags)[0])
    {
        config_highlight_tags = string_split (CONFIG_STRING(config_look_highlight_tags),
                                              ",", 0, 0, &config_num_highlight_tags);
    }
}

/*
 * config_change_hotlist: called when hotlist changes
 */

void
config_change_hotlist (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_hotlist_resort ();
}

/*
 * config_change_paste_bracketed: called when bracketed paste mode is changed
 */

void
config_change_paste_bracketed (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (gui_init_ok)
        gui_window_set_bracketed_paste_mode (CONFIG_BOOLEAN(config_look_paste_bracketed));
}

/*
 * config_change_read_marker: called when read marker is changed
 */

void
config_change_read_marker (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_window_ask_refresh (1);
}

/*
 * config_change_prefix: called when a prefix is changed
 */

void
config_change_prefix (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_chat_prefix_build ();
}

/*
 * config_change_prefix_align_min: called when prefix_align_min is changed
 */

void
config_change_prefix_align_min (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    config_compute_prefix_max_length_all_buffers ();
    gui_window_ask_refresh (1);
}

/*
 * config_check_prefix_align_more: check string "prefix align more" (must be
 *                                 max one char wide on screen)
 */

int
config_check_prefix_align_more (void *data, struct t_config_option *option,
                                const char *value)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    return (utf8_strlen_screen (value) == 1) ? 1 : 0;
}

/*
 * config_check_prefix_buffer_align_more: check string "prefix buffer align more"
 *                                        (must be max one char wide on screen)
 */

int
config_check_prefix_buffer_align_more (void *data,
                                       struct t_config_option *option,
                                       const char *value)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    return (utf8_strlen_screen (value) == 1) ? 1 : 0;
}

/*
 * config_change_color: called when a color is changed by /set command
 */

void
config_change_color (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (gui_init_ok)
    {
        gui_color_init_weechat ();
        gui_window_ask_refresh (1);
    }
}

/*
 * config_change_nick_colors: called when nick colors are changed
 */

void
config_change_nick_colors (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_color_buffer_display ();
}

/*
 * config_change_network_gnutls_ca_file: called when gnutls_ca_file is changed
 */

void
config_change_network_gnutls_ca_file (void *data,
                                      struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (network_init_ok)
        network_set_gnutls_ca_file ();
}

/*
 * config_change_plugin_extension: called when plugin extension is changed
 */

void
config_change_plugin_extension (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    if (config_plugin_extensions)
    {
        string_free_split (config_plugin_extensions);
        config_plugin_extensions = NULL;
    }
    config_num_plugin_extensions = 0;

    if (CONFIG_STRING(config_plugin_extension)
        && CONFIG_STRING(config_plugin_extension)[0])
    {
        config_plugin_extensions = string_split (CONFIG_STRING(config_plugin_extension),
                                                 ",", 0, 0, &config_num_plugin_extensions);
    }
}

/*
 * config_day_change_timer_cb: timer callback for displaying
 *                             "Day changed to xxx" message
 */

int
config_day_change_timer_cb (void *data, int remaining_calls)
{
    struct timeval tv_time;
    struct tm *local_time;
    int new_mday;
    char text_time[256], *text_time2;
    struct t_gui_buffer *ptr_buffer;

    /* make C compiler happy */
    (void) data;
    (void) remaining_calls;

    gettimeofday (&tv_time, NULL);
    local_time = localtime (&tv_time.tv_sec);
    new_mday = local_time->tm_mday;

    if ((config_day_change_old_day >= 0)
        && (new_mday != config_day_change_old_day))
    {
        if (CONFIG_BOOLEAN(config_look_day_change))
        {
            strftime (text_time, sizeof (text_time),
                      CONFIG_STRING(config_look_day_change_time_format),
                      local_time);
            text_time2 = string_iconv_to_internal (NULL, text_time);
            gui_add_hotlist = 0;
            for (ptr_buffer = gui_buffers; ptr_buffer;
                 ptr_buffer = ptr_buffer->next_buffer)
            {
                if (ptr_buffer->type == GUI_BUFFER_TYPE_FORMATTED)
                {
                    gui_chat_printf (ptr_buffer,
                                     _("\t\tDay changed to %s"),
                                     (text_time2) ?
                                     text_time2 : text_time);
                }
            }
            if (text_time2)
                free (text_time2);
            gui_add_hotlist = 1;
        }

        /* send signal "day_changed" */
        strftime (text_time, sizeof (text_time), "%Y-%m-%d", local_time);
        hook_signal_send ("day_changed", WEECHAT_HOOK_SIGNAL_STRING, text_time);
    }

    config_day_change_old_day = new_mday;

    return WEECHAT_RC_OK;
}

/*
 * config_weechat_init_after_read: initialize some things after reading (or
 *                                 reloading) configuration file
 */

void
config_weechat_init_after_read ()
{
    int i;

    gui_buffer_notify_set_all ();

    proxy_use_temp_proxies ();

    gui_bar_use_temp_bars ();
    if (gui_bars)
    {
        /*
         * at least one bar defined => just ensure that at least one bar is
         * using item "input_text"
         */
        gui_bar_create_default_input ();
    }
    else
    {
        /* no bar defined => create default bars */
        gui_bar_create_default ();
    }

    /* if no key was found config file, then we use default bindings */
    for (i = 0; i < GUI_KEY_NUM_CONTEXTS; i++)
    {
        if (!gui_keys[i])
            gui_key_default_bindings (i);
    }

    /* apply filters on all buffers */
    gui_filter_all_buffers ();
}

/*
 * config_weechat_reload_cb: reload WeeChat configuration file
 *                           return one of these values:
 *                             WEECHAT_CONFIG_READ_OK
 *                             WEECHAT_CONFIG_READ_MEMORY_ERROR
 *                             WEECHAT_CONFIG_READ_FILE_NOT_FOUND
 */

int
config_weechat_reload_cb (void *data, struct t_config_file *config_file)
{
    int i, rc;

    /* make C compiler happy */
    (void) data;

    /* remove all keys */
    for (i = 0; i < GUI_KEY_NUM_CONTEXTS; i++)
    {
        gui_key_free_all (&gui_keys[i], &last_gui_key[i],
                          &gui_keys_count[i]);
    }

    /* remove all proxies */
    proxy_free_all ();

    /* remove all bars */
    gui_bar_free_all ();

    /* remove layout */
    gui_layout_buffer_reset (&gui_layout_buffers, &last_gui_layout_buffer);
    gui_layout_window_reset (&gui_layout_windows);

    /* remove all notify levels */
    config_file_section_free_options (weechat_config_section_notify);

    /* remove all filters */
    gui_filter_free_all ();

    rc = config_file_reload (config_file);

    config_weechat_init_after_read ();

    return rc;
}

/*
 * config_weechat_debug_get: get debug level for a plugin (or "core")
 */

struct t_config_option *
config_weechat_debug_get (const char *plugin_name)
{
    return config_file_search_option (weechat_config_file,
                                      weechat_config_section_debug,
                                      plugin_name);
}

/*
 * config_weechat_debug_set_all: set debug for "core" and all plugins, using
 *                               values from [debug] section
 */

void
config_weechat_debug_set_all ()
{
    struct t_config_option *ptr_option;
    struct t_weechat_plugin *ptr_plugin;

    /* set debug for core */
    ptr_option = config_weechat_debug_get (PLUGIN_CORE);
    weechat_debug_core = (ptr_option) ? CONFIG_INTEGER(ptr_option) : 0;

    /* set debug for plugins */
    for (ptr_plugin = weechat_plugins; ptr_plugin;
         ptr_plugin = ptr_plugin->next_plugin)
    {
        ptr_option = config_weechat_debug_get (ptr_plugin->name);
        ptr_plugin->debug = (ptr_option) ? CONFIG_INTEGER(ptr_option) : 0;
    }
}

/*
 * config_weechat_debug_change_cb: called when a debug option is changed
 */

void
config_weechat_debug_change_cb (void *data,
                                struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    config_weechat_debug_set_all ();
}

/*
 * config_weechat_debug_create_option_cb: create option in "debug" section
 */

int
config_weechat_debug_create_option_cb (void *data,
                                       struct t_config_file *config_file,
                                       struct t_config_section *section,
                                       const char *option_name,
                                       const char *value)
{
    struct t_config_option *ptr_option;
    int rc;

    /* make C compiler happy */
    (void) data;

    rc = WEECHAT_CONFIG_OPTION_SET_ERROR;

    if (option_name)
    {
        ptr_option = config_file_search_option (config_file, section,
                                                option_name);
        if (ptr_option)
        {
            if (value && value[0])
                rc = config_file_option_set (ptr_option, value, 1);
            else
            {
                config_file_option_free (ptr_option);
                rc = WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
            }
        }
        else
        {
            if (value && value[0])
            {
                ptr_option = config_file_new_option (
                    config_file, section,
                    option_name, "integer",
                    _("debug level for plugin (\"core\" for WeeChat core)"),
                    NULL, 0, 32, "0", value, 0, NULL, NULL,
                    &config_weechat_debug_change_cb, NULL,
                    NULL, NULL);
                rc = (ptr_option) ?
                    WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE : WEECHAT_CONFIG_OPTION_SET_ERROR;
            }
            else
                rc = WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
        }
    }

    /* set debug level for "core" and all plugins */
    config_weechat_debug_set_all ();

    return rc;
}

/*
 * config_weechat_debug_delete_option_cb: delete option in "debug" section
 */

int
config_weechat_debug_delete_option_cb (void *data,
                                       struct t_config_file *config_file,
                                       struct t_config_section *section,
                                       struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    config_file_option_free (option);

    config_weechat_debug_set_all ();

    return WEECHAT_CONFIG_OPTION_UNSET_OK_REMOVED;
}

/*
 * config_weechat_debug_set: set debug level for a plugin (or "core")
 */

int
config_weechat_debug_set (const char *plugin_name, const char *value)
{
    return config_weechat_debug_create_option_cb (NULL,
                                                  weechat_config_file,
                                                  weechat_config_section_debug,
                                                  plugin_name,
                                                  value);
}

/*
 * config_weechat_palette_change_cb: called when a palette option is changed
 */

void
config_weechat_palette_change_cb (void *data,
                                  struct t_config_option *option)
{
    char *error;
    int number;

    /* make C compiler happy */
    (void) data;
    (void) option;

    error = NULL;
    number = (int)strtol (option->name, &error, 10);
    if (error && !error[0])
    {
        gui_color_palette_add (number, CONFIG_STRING(option));
    }
}

/*
 * config_weechat_palette_create_option_cb: create option in "palette" section
 */

int
config_weechat_palette_create_option_cb (void *data,
                                         struct t_config_file *config_file,
                                         struct t_config_section *section,
                                         const char *option_name,
                                         const char *value)
{
    struct t_config_option *ptr_option;
    char *error;
    int rc, number;

    /* make C compiler happy */
    (void) data;

    rc = WEECHAT_CONFIG_OPTION_SET_ERROR;

    error = NULL;
    number = (int)strtol (option_name, &error, 10);
    if (error && !error[0])
    {
        if (option_name)
        {
            ptr_option = config_file_search_option (config_file, section,
                                                    option_name);
            if (ptr_option)
            {
                if (value)
                    rc = config_file_option_set (ptr_option, value, 1);
                else
                {
                    config_file_option_free (ptr_option);
                    rc = WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
                }
            }
            else
            {
                if (value)
                {
                    ptr_option = config_file_new_option (
                        config_file, section,
                        option_name, "string",
                        _("alias for color"),
                        NULL, 0, 0, "", value, 0, NULL, NULL,
                        &config_weechat_palette_change_cb, NULL,
                        NULL, NULL);
                    rc = (ptr_option) ?
                        WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE : WEECHAT_CONFIG_OPTION_SET_ERROR;
                    if (ptr_option)
                        gui_color_palette_add (number, value);
                }
                else
                    rc = WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
            }
        }
    }
    else
    {
        gui_chat_printf (NULL,
                         _("%sError: palette option must be numeric"),
                         gui_chat_prefix[GUI_CHAT_PREFIX_ERROR]);
    }

    return rc;
}

/*
 * config_weechat_palette_delete_option_cb: delete option in "palette" section
 */

int
config_weechat_palette_delete_option_cb (void *data,
                                         struct t_config_file *config_file,
                                         struct t_config_section *section,
                                         struct t_config_option *option)
{
    char *error;
    int number;

    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    error = NULL;
    number = (int)strtol (option->name, &error, 10);
    if (error && !error[0])
        gui_color_palette_remove (number);

    config_file_option_free (option);

    return WEECHAT_CONFIG_OPTION_UNSET_OK_REMOVED;
}

/*
 * config_weechat_proxy_read_cb: read proxy option in config file
 */

int
config_weechat_proxy_read_cb (void *data, struct t_config_file *config_file,
                              struct t_config_section *section,
                              const char *option_name, const char *value)
{
    char *pos_option, *proxy_name;
    struct t_proxy *ptr_temp_proxy;
    int index_option;

    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    if (option_name)
    {
        pos_option = strchr (option_name, '.');
        if (pos_option)
        {
            proxy_name = string_strndup (option_name, pos_option - option_name);
            if (proxy_name)
            {
                pos_option++;
                for (ptr_temp_proxy = weechat_temp_proxies; ptr_temp_proxy;
                     ptr_temp_proxy = ptr_temp_proxy->next_proxy)
                {
                    if (strcmp (ptr_temp_proxy->name, proxy_name) == 0)
                        break;
                }
                if (!ptr_temp_proxy)
                {
                    /* create new temp proxy */
                    ptr_temp_proxy = proxy_alloc (proxy_name);
                    if (ptr_temp_proxy)
                    {
                        /* add new temp proxy at end of queue */
                        ptr_temp_proxy->prev_proxy = last_weechat_temp_proxy;
                        ptr_temp_proxy->next_proxy = NULL;

                        if (!weechat_temp_proxies)
                            weechat_temp_proxies = ptr_temp_proxy;
                        else
                            last_weechat_temp_proxy->next_proxy = ptr_temp_proxy;
                        last_weechat_temp_proxy = ptr_temp_proxy;
                    }
                }

                if (ptr_temp_proxy)
                {
                    index_option = proxy_search_option (pos_option);
                    if (index_option >= 0)
                    {
                        proxy_create_option_temp (ptr_temp_proxy, index_option,
                                                  value);
                    }
                }

                free (proxy_name);
            }
        }
    }

    return WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
}

/*
 * config_weechat_bar_read_cb: read bar option in config file
 */

int
config_weechat_bar_read_cb (void *data, struct t_config_file *config_file,
                            struct t_config_section *section,
                            const char *option_name, const char *value)
{
    char *pos_option, *bar_name;
    struct t_gui_bar *ptr_temp_bar;
    int index_option;

    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    if (option_name)
    {
        pos_option = strchr (option_name, '.');
        if (pos_option)
        {
            bar_name = string_strndup (option_name, pos_option - option_name);
            if (bar_name)
            {
                pos_option++;
                for (ptr_temp_bar = gui_temp_bars; ptr_temp_bar;
                     ptr_temp_bar = ptr_temp_bar->next_bar)
                {
                    if (strcmp (ptr_temp_bar->name, bar_name) == 0)
                        break;
                }
                if (!ptr_temp_bar)
                {
                    /* create new temp bar */
                    ptr_temp_bar = gui_bar_alloc (bar_name);
                    if (ptr_temp_bar)
                    {
                        /* add new temp bar at end of queue */
                        ptr_temp_bar->prev_bar = last_gui_temp_bar;
                        ptr_temp_bar->next_bar = NULL;

                        if (!gui_temp_bars)
                            gui_temp_bars = ptr_temp_bar;
                        else
                            last_gui_temp_bar->next_bar = ptr_temp_bar;
                        last_gui_temp_bar = ptr_temp_bar;
                    }
                }

                if (ptr_temp_bar)
                {
                    index_option = gui_bar_search_option (pos_option);
                    if (index_option >= 0)
                    {
                        gui_bar_create_option_temp (ptr_temp_bar, index_option,
                                                    value);
                    }
                }

                free (bar_name);
            }
        }
    }

    return WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
}

/*
 * config_weechat_layout_read_cb: read layout option in config file
 */

int
config_weechat_layout_read_cb (void *data, struct t_config_file *config_file,
                               struct t_config_section *section,
                               const char *option_name, const char *value)
{
    int argc;
    char **argv, *error1, *error2, *error3, *error4;
    long number1, number2, number3, number4;
    struct t_gui_layout_window *parent;

    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    if (option_name && value && value[0])
    {
        if (string_strcasecmp (option_name, "buffer") == 0)
        {
            argv = string_split (value, ";", 0, 0, &argc);
            if (argv)
            {
                if (argc >= 3)
                {
                    error1 = NULL;
                    number1 = strtol (argv[2], &error1, 10);
                    if (error1 && !error1[0])
                    {
                        gui_layout_buffer_add (&gui_layout_buffers,
                                               &last_gui_layout_buffer,
                                               argv[0], argv[1], number1);
                    }
                }
                string_free_split (argv);
            }
        }
        else if (string_strcasecmp (option_name, "window") == 0)
        {
            argv = string_split (value, ";", 0, 0, &argc);
            if (argv)
            {
                if (argc >= 6)
                {
                    error1 = NULL;
                    number1 = strtol (argv[0], &error1, 10);
                    error2 = NULL;
                    number2 = strtol (argv[1], &error2, 10);
                    error3 = NULL;
                    number3 = strtol (argv[2], &error3, 10);
                    error4 = NULL;
                    number4 = strtol (argv[3], &error4, 10);
                    if (error1 && !error1[0] && error2 && !error2[0]
                        && error3 && !error3[0] && error4 && !error4[0])
                    {
                        parent = gui_layout_window_search_by_id (gui_layout_windows,
                                                                 number2);
                        gui_layout_window_add (&gui_layout_windows,
                                               number1,
                                               parent,
                                               number3,
                                               number4,
                                               (strcmp (argv[4], "-") != 0) ?
                                               argv[4] : NULL,
                                               (strcmp (argv[4], "-") != 0) ?
                                               argv[5] : NULL);
                    }
                }
                string_free_split (argv);
            }
        }
    }

    return WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
}

/*
 * config_weechat_layout_write: write windows layout in configuration file
 */

int
config_weechat_layout_write_tree (struct t_config_file *config_file,
                                  struct t_gui_layout_window *layout_window)
{
    if (!config_file_write_line (config_file, "window", "\"%d;%d;%d;%d;%s;%s\"",
                                 layout_window->internal_id,
                                 (layout_window->parent_node) ?
                                 layout_window->parent_node->internal_id : 0,
                                 layout_window->split_pct,
                                 layout_window->split_horiz,
                                 (layout_window->plugin_name) ?
                                 layout_window->plugin_name : "-",
                                 (layout_window->buffer_name) ?
                                 layout_window->buffer_name : "-"))
        return WEECHAT_CONFIG_WRITE_ERROR;

    if (layout_window->child1)
    {
        if (config_weechat_layout_write_tree (config_file,
                                              layout_window->child1) != WEECHAT_CONFIG_WRITE_OK)
            return WEECHAT_CONFIG_WRITE_ERROR;
    }

    if (layout_window->child2)
    {
        if (config_weechat_layout_write_tree (config_file,
                                              layout_window->child2) != WEECHAT_CONFIG_WRITE_OK)
            return WEECHAT_CONFIG_WRITE_ERROR;
    }

    return WEECHAT_CONFIG_WRITE_OK;
}

/*
 * config_weechat_layout_write_cb: write layout section in configuration file
 */

int
config_weechat_layout_write_cb (void *data, struct t_config_file *config_file,
                                const char *section_name)
{
    struct t_gui_layout_buffer *ptr_layout_buffer;

    /* make C compiler happy */
    (void) data;

    if (!config_file_write_line (config_file, section_name, NULL))
        return WEECHAT_CONFIG_WRITE_ERROR;

    for (ptr_layout_buffer = gui_layout_buffers; ptr_layout_buffer;
         ptr_layout_buffer = ptr_layout_buffer->next_layout)
    {
        if (!config_file_write_line (config_file, "buffer", "\"%s;%s;%d\"",
                                     ptr_layout_buffer->plugin_name,
                                     ptr_layout_buffer->buffer_name,
                                     ptr_layout_buffer->number))
            return WEECHAT_CONFIG_WRITE_ERROR;
    }

    if (gui_layout_windows)
    {
        if (config_weechat_layout_write_tree (config_file,
                                              gui_layout_windows) != WEECHAT_CONFIG_WRITE_OK)
            return WEECHAT_CONFIG_WRITE_ERROR;
    }

    return WEECHAT_CONFIG_WRITE_OK;
}

/*
 * config_weechat_notify_change_cb: callback when notify option is changed
 */

void
config_weechat_notify_change_cb (void *data, struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) option;

    gui_buffer_notify_set_all ();
}

/*
 * config_weechat_notify_create_option_cb: callback to create option in "notify"
 *                                         section
 */

int
config_weechat_notify_create_option_cb (void *data,
                                        struct t_config_file *config_file,
                                        struct t_config_section *section,
                                        const char *option_name,
                                        const char *value)
{
    struct t_config_option *ptr_option;
    int rc;

    /* make C compiler happy */
    (void) data;

    rc = WEECHAT_CONFIG_OPTION_SET_ERROR;

    if (option_name)
    {
        ptr_option = config_file_search_option (config_file, section,
                                                option_name);
        if (ptr_option)
        {
            if (value && value[0])
                rc = config_file_option_set (ptr_option, value, 1);
            else
            {
                config_file_option_free (ptr_option);
                rc = WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
            }
        }
        else
        {
            if (value && value[0])
            {
                ptr_option = config_file_new_option (
                    config_file, section,
                    option_name, "integer", _("Notify level for buffer"),
                    "none|highlight|message|all",
                    0, 0, "", value, 0, NULL, NULL,
                    &config_weechat_notify_change_cb, NULL,
                    NULL, NULL);
                rc = (ptr_option) ?
                    WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE : WEECHAT_CONFIG_OPTION_SET_ERROR;
            }
            else
                rc = WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
        }
    }

    if (rc != WEECHAT_CONFIG_OPTION_SET_ERROR)
        gui_buffer_notify_set_all ();

    return rc;
}

/*
 * config_weechat_notify_delete_option_cb: called when a notify option is
 *                                         deleted
 */

int
config_weechat_notify_delete_option_cb (void *data,
                                        struct t_config_file *config_file,
                                        struct t_config_section *section,
                                        struct t_config_option *option)
{
    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    config_file_option_free (option);

    gui_buffer_notify_set_all ();

    return WEECHAT_CONFIG_OPTION_UNSET_OK_REMOVED;
}

/*
 * config_weechat_notify_set: set a notify level for a buffer
 *                            negative value will reset notify for buffer to
 *                            default value (and remove buffer from config file)
 *                            return 1 if ok, 0 if error
 */

int
config_weechat_notify_set (struct t_gui_buffer *buffer, const char *notify)
{
    int i, value;

    if (!buffer || !notify)
        return 0;

    value = -1;
    for (i = 0; i < GUI_BUFFER_NUM_NOTIFY; i++)
    {
        if (strcmp (gui_buffer_notify_string[i], notify) == 0)
        {
            value = i;
            break;
        }
    }
    if ((value < 0) && (strcmp (notify, "reset") != 0))
        return 0;

    /* create/update option */
    config_weechat_notify_create_option_cb (NULL,
                                            weechat_config_file,
                                            weechat_config_section_notify,
                                            buffer->full_name,
                                            (value < 0) ?
                                            NULL : gui_buffer_notify_string[value]);
    return 1;
}

/*
 * config_weechat_filter_read_cb: read filter option from config file
 */

int
config_weechat_filter_read_cb (void *data,
                               struct t_config_file *config_file,
                               struct t_config_section *section,
                               const char *option_name, const char *value)
{
    char **argv, **argv_eol;
    int argc;

    /* make C compiler happy */
    (void) data;
    (void) config_file;
    (void) section;

    if (option_name && value && value[0])
    {
        argv = string_split (value, ";", 0, 0, &argc);
        argv_eol = string_split (value, ";", 1, 0, NULL);
        if (argv && argv_eol && (argc >= 4))
        {
            gui_filter_new ((string_strcasecmp (argv[0], "on") == 0) ? 1 : 0,
                            option_name, argv[1], argv[2], argv_eol[3]);
        }
        if (argv)
            string_free_split (argv);
        if (argv_eol)
            string_free_split (argv_eol);
    }

    return WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
}

/*
 * config_weechat_filter_write_cb: write filter section in configuration file
 */

int
config_weechat_filter_write_cb (void *data, struct t_config_file *config_file,
                                const char *section_name)
{
    struct t_gui_filter *ptr_filter;

    /* make C compiler happy */
    (void) data;

    if (!config_file_write_line (config_file, section_name, NULL))
        return WEECHAT_CONFIG_WRITE_ERROR;

    for (ptr_filter = gui_filters; ptr_filter;
         ptr_filter = ptr_filter->next_filter)
    {
        if (!config_file_write_line (config_file,
                                     ptr_filter->name,
                                     "%s;%s;%s;%s",
                                     (ptr_filter->enabled) ? "on" : "off",
                                     ptr_filter->buffer_name,
                                     ptr_filter->tags,
                                     ptr_filter->regex))
            return WEECHAT_CONFIG_WRITE_ERROR;
    }

    return WEECHAT_CONFIG_WRITE_OK;
}

/*
 * config_weechat_key_read_cb: read key option in config file
 */

int
config_weechat_key_read_cb (void *data, struct t_config_file *config_file,
                            struct t_config_section *section,
                            const char *option_name, const char *value)
{
    int context;
    char *pos;

    /* make C compiler happy */
    (void) data;
    (void) config_file;

    if (option_name)
    {
        context = GUI_KEY_CONTEXT_DEFAULT;
        pos = strchr (section->name, '_');
        if (pos)
        {
            context = gui_key_search_context (pos + 1);
            if (context < 0)
                context = GUI_KEY_CONTEXT_DEFAULT;
        }

        if (value && value[0])
        {
            /* bind key (overwrite any binding with same key) */
            gui_key_bind (NULL, context, option_name, value);
        }
        else
        {
            /* unbind key if no value given */
            gui_key_unbind (NULL, context, option_name);
        }
    }

    return WEECHAT_CONFIG_OPTION_SET_OK_SAME_VALUE;
}

/*
 * config_weechat_key_write_cb: write key section in configuration file
 */

int
config_weechat_key_write_cb (void *data, struct t_config_file *config_file,
                             const char *section_name)
{
    struct t_gui_key *ptr_key;
    char *pos, *expanded_name;
    int rc, context;

    /* make C compiler happy */
    …

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