xC: revise configuration options

This commit constitutes a breaking change to old configurations.

All behaviour.* options have now become general.*, with the following
few renames as exceptions:

 - editor_command -> editor
 - backlog_helper -> pager
 - backlog_helper_strip_formatting -> pager_strip_formatting

4 files changed, 107 insertions, 101 deletions

diff --git a/NEWS b/NEWS
index 859fa93..90182f9 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,10 @@
 Unreleased
 
- * xC: improved backlog helper integration capabilities
+ * xC: all behaviour.* configuration options have been renamed to general.*,
+   with the exception of editor_command/editor, backlog_helper/pager,
+   and backlog_helper_strip_formatting/pager_strip_formatting
+
+ * xC: improved pager integration capabilities
 
  * xC: made it show WALLOPS messages, as PRIVMSG for the server buffer
 
diff --git a/README.adoc b/README.adoc
index 2c1df33..7112a41 100644
--- a/README.adoc
+++ b/README.adoc
@@ -161,9 +161,9 @@ black-on-white and white-on-black terminals, or anything wild in between.
 Assuming that your build supports Lua plugins, and that you have a decent,
 properly set-up terminal emulator, it suffices to run:
 
- /set behaviour.backlog_helper = Press Tab here and change +Gb to +Gb1d
- /set behaviour.date_change_line = "%a %e %b %Y"
- /set behaviour.plugin_autoload += "fancy-prompt.lua"
+ /set general.pager = Press Tab here and change +Gb to +Gb1d
+ /set general.date_change_line = "%a %e %b %Y"
+ /set general.plugin_autoload += "fancy-prompt.lua"
  /set attributes.userhost = "\x1b[38;5;109m"
  /set attributes.join = "\x1b[38;5;108m"
  /set attributes.part = "\x1b[38;5;138m"
diff --git a/xC.adoc b/xC.adoc
index 2d791cd..ba5c4c4 100644
--- a/xC.adoc
+++ b/xC.adoc
@@ -105,7 +105,7 @@ _~/.config/xC/xC.conf_::
 	as the */set* command, to make changes in it.
 
 _~/.local/share/xC/logs/_::
-	When enabled by *behaviour.logging*, log files are stored here.
+	When enabled by *general.logging*, log files are stored here.
 
 _~/.local/share/xC/plugins/_::
 _/usr/local/share/xC/plugins/_::
diff --git a/xC.c b/xC.c
index f978628..d4efc2a 100644
--- a/xC.c
+++ b/xC.c
@@ -2085,7 +2085,7 @@ struct app_context
 	bool in_bracketed_paste;            ///< User is pasting some content
 	struct str input_buffer;            ///< Buffered pasted content
 
-	bool running_backlog_helper;        ///< Running a backlog helper
+	bool running_pager;                 ///< Running a pager for buffer history
 	bool running_editor;                ///< Running editor for the input
 	char *editor_filename;              ///< The file being edited by user
 	int terminal_suspended;             ///< Terminal suspension level
@@ -2420,18 +2420,65 @@ static struct config_schema g_config_server[] =
 	{}
 };
 
-static struct config_schema g_config_behaviour[] =
+static struct config_schema g_config_general[] =
 {
-	{ .name      = "isolate_buffers",
-	  .comment   = "Don't leak messages from the server and global buffers",
+	{ .name      = "save_on_quit",
+	  .comment   = "Save configuration before quitting",
+	  .type      = CONFIG_ITEM_BOOLEAN,
+	  .default_  = "on" },
+	{ .name      = "debug_mode",
+	  .comment   = "Produce some debugging output",
 	  .type      = CONFIG_ITEM_BOOLEAN,
 	  .default_  = "off",
-	  .on_change = on_config_isolate_buffers_change },
+	  .on_change = on_config_debug_mode_change },
+	{ .name      = "logging",
+	  .comment   = "Log buffer contents to file",
+	  .type      = CONFIG_ITEM_BOOLEAN,
+	  .default_  = "off",
+	  .on_change = on_config_logging_change },
+	{ .name      = "plugin_autoload",
+	  .comment   = "Plugins to automatically load on start",
+	  .type      = CONFIG_ITEM_STRING_ARRAY,
+	  .validate  = config_validate_nonjunk_string },
+
+	// Buffer history:
+	{ .name      = "backlog_limit",
+	  .comment   = "Maximum number of lines stored in the backlog",
+	  .type      = CONFIG_ITEM_INTEGER,
+	  .validate  = config_validate_nonnegative,
+	  .default_  = "1000",
+	  .on_change = on_config_backlog_limit_change },
+	{ .name      = "pager",
+	  .comment   = "Shell command to page buffer history (args: name [path])",
+	  .type      = CONFIG_ITEM_STRING,
+	  .default_  = "`name=$(echo \"$1\" | sed 's/[%?:.]/\\\\&/g'); "
+		"prompt='?f%F:'$name'. ?db- page %db?L of %D. .(?eEND:?PB%PB\\%..)'; "
+		"LESSSECURE=1 less +Gb -Ps\"$prompt\" \"${2:--R}\"`" },
+	{ .name      = "pager_strip_formatting",
+	  .comment   = "Strip terminal formatting from pager input",
+	  .type      = CONFIG_ITEM_BOOLEAN,
+	  .default_  = "off" },
+
+	// Output adjustments:
 	{ .name      = "beep_on_highlight",
-	  .comment   = "Beep when highlighted or on a new invisible PM",
+	  .comment   = "Ring the bell when highlighted or on a new invisible PM",
 	  .type      = CONFIG_ITEM_BOOLEAN,
 	  .default_  = "on",
 	  .on_change = on_config_beep_on_highlight_change },
+	{ .name      = "date_change_line",
+	  .comment   = "Input to strftime(3) for the date change line",
+	  .type      = CONFIG_ITEM_STRING,
+	  .default_  = "\"%F\"" },
+	{ .name      = "isolate_buffers",
+	  .comment   = "Don't leak messages from the server and global buffers",
+	  .type      = CONFIG_ITEM_BOOLEAN,
+	  .default_  = "off",
+	  .on_change = on_config_isolate_buffers_change },
+	{ .name      = "read_marker_char",
+	  .comment   = "The character to use for the read marker line",
+	  .type      = CONFIG_ITEM_STRING,
+	  .default_  = "\"-\"",
+	  .validate  = config_validate_nonjunk_string },
 	{ .name      = "show_all_prefixes",
 	  .comment   = "Show all prefixes in front of nicknames",
 	  .type      = CONFIG_ITEM_BOOLEAN,
@@ -2442,7 +2489,9 @@ static struct config_schema g_config_behaviour[] =
 	  .type      = CONFIG_ITEM_BOOLEAN,
 	  .default_  = "on",
 	  .on_change = on_config_word_wrapping_change },
-	{ .name      = "editor_command",
+
+	// User input:
+	{ .name      = "editor",
 	  .comment   = "VIM: \"vim +%Bgo %F\", Emacs: \"emacs -nw +%L:%C %F\", "
 		"nano/micro/kakoune: \"nano/micro/kak +%L:%C %F\"",
 	  .type      = CONFIG_ITEM_STRING },
@@ -2450,49 +2499,19 @@ static struct config_schema g_config_behaviour[] =
 	  .comment   = "Normalize newlines and quote the command prefix in pastes",
 	  .type      = CONFIG_ITEM_BOOLEAN,
 	  .default_  = "on" },
-	{ .name      = "date_change_line",
-	  .comment   = "Input to strftime(3) for the date change line",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"%F\"" },
-	{ .name      = "read_marker_char",
-	  .comment   = "The character to use for the read marker line",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"-\"",
-	  .validate  = config_validate_nonjunk_string },
-	{ .name      = "logging",
-	  .comment   = "Log buffer contents to file",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off",
-	  .on_change = on_config_logging_change },
-	{ .name      = "save_on_quit",
-	  .comment   = "Save configuration before quitting",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "on" },
-	{ .name      = "debug_mode",
-	  .comment   = "Produce some debugging output",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off",
-	  .on_change = on_config_debug_mode_change },
 
-	{ .name      = "backlog_limit",
-	  .comment   = "Maximum number of lines stored in the backlog",
+	// Pan-server configuration:
+	{ .name      = "autoaway_message",
+	  .comment   = "Automated away message",
+	  .type      = CONFIG_ITEM_STRING,
+	  .default_  = "\"I'm not here right now\"" },
+	{ .name      = "autoaway_delay",
+	  .comment   = "Delay from the last keypress in seconds",
 	  .type      = CONFIG_ITEM_INTEGER,
 	  .validate  = config_validate_nonnegative,
-	  .default_  = "1000",
-	  .on_change = on_config_backlog_limit_change },
-	{ .name      = "backlog_helper",
-	  .comment   = "Shell command to page buffer history (args: name [path])",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "`name=$(echo \"$1\" | sed 's/[%?:.]/\\\\&/g'); "
-		"prompt='?f%F:'$name'. ?db- page %db?L of %D. .(?eEND:?PB%PB\\%..)'; "
-		"LESSSECURE=1 less +Gb -Ps\"$prompt\" \"${2:--R}\"`" },
-	{ .name      = "backlog_helper_strip_formatting",
-	  .comment   = "Strip formatting from backlog helper input",
-	  .type      = CONFIG_ITEM_BOOLEAN,
-	  .default_  = "off" },
-
+	  .default_  = "1800" },
 	{ .name      = "reconnect_delay_growing",
-	  .comment   = "Growing factor for reconnect delay",
+	  .comment   = "Growth factor for the reconnect delay",
 	  .type      = CONFIG_ITEM_INTEGER,
 	  .validate  = config_validate_nonnegative,
 	  .default_  = "2" },
@@ -2501,21 +2520,6 @@ static struct config_schema g_config_behaviour[] =
 	  .type      = CONFIG_ITEM_INTEGER,
 	  .validate  = config_validate_nonnegative,
 	  .default_  = "600" },
-
-	{ .name      = "autoaway_message",
-	  .comment   = "Automated away message",
-	  .type      = CONFIG_ITEM_STRING,
-	  .default_  = "\"I'm not here right now\"" },
-	{ .name      = "autoaway_delay",
-	  .comment   = "Delay from the last keypress in seconds",
-	  .type      = CONFIG_ITEM_INTEGER,
-	  .validate  = config_validate_nonnegative,
-	  .default_  = "1800" },
-
-	{ .name      = "plugin_autoload",
-	  .comment   = "Plugins to automatically load on start",
-	  .type      = CONFIG_ITEM_STRING_ARRAY,
-	  .validate  = config_validate_nonjunk_string },
 	{}
 };
 
@@ -2531,9 +2535,9 @@ static struct config_schema g_config_attributes[] =
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
 static void
-load_config_behaviour (struct config_item *subtree, void *user_data)
+load_config_general (struct config_item *subtree, void *user_data)
 {
-	config_schema_apply_to_object (g_config_behaviour,  subtree, user_data);
+	config_schema_apply_to_object (g_config_general, subtree, user_data);
 }
 
 static void
@@ -2550,7 +2554,7 @@ register_config_modules (struct app_context *ctx)
 	config_register_module (config, "servers",    NULL, NULL);
 	config_register_module (config, "aliases",    NULL, NULL);
 	config_register_module (config, "plugins",    NULL, NULL);
-	config_register_module (config, "behaviour",  load_config_behaviour,  ctx);
+	config_register_module (config, "general",    load_config_general,    ctx);
 	config_register_module (config, "attributes", load_config_attributes, ctx);
 }
 
@@ -3923,7 +3927,7 @@ buffer_update_time (struct app_context *ctx, time_t now, FILE *stream,
 
 	char buf[64] = "";
 	const char *format =
-		get_config_string (ctx->config.root, "behaviour.date_change_line");
+		get_config_string (ctx->config.root, "general.date_change_line");
 	if (!strftime (buf, sizeof buf, format, &current))
 	{
 		print_error ("%s: %s", "strftime", strerror (errno));
@@ -4300,8 +4304,8 @@ buffer_print_read_marker (struct app_context *ctx, FILE *stream, int flush_opts)
 {
 	struct formatter f = formatter_make (ctx, NULL);
 	const int timestamp_width = 8;  // hardcoded to %T right now, simple
-	const char *marker_char = get_config_string (ctx->config.root,
-		"behaviour.read_marker_char");
+	const char *marker_char =
+		get_config_string (ctx->config.root, "general.read_marker_char");
 
 	// We could turn this off on FLUSH_OPT_NOWRAP, however our default pager
 	// wraps lines for us even if we don't do it ourselves, and thus there's
@@ -4911,8 +4915,8 @@ static int64_t
 irc_get_reconnect_delay (struct server *s)
 {
 	int64_t delay = get_config_integer (s->config, "reconnect_delay");
-	int64_t delay_factor = get_config_integer (s->ctx->config.root,
-		"behaviour.reconnect_delay_growing");
+	int64_t delay_factor = get_config_integer
+		(s->ctx->config.root, "general.reconnect_delay_growing");
 	for (unsigned i = 0; i < s->reconnect_attempt; i++)
 	{
 		if (delay_factor && delay > INT64_MAX / delay_factor)
@@ -4920,8 +4924,8 @@ irc_get_reconnect_delay (struct server *s)
 		delay *= delay_factor;
 	}
 
-	int64_t delay_max = get_config_integer (s->ctx->config.root,
-		"behaviour.reconnect_delay_max");
+	int64_t delay_max =
+		get_config_integer (s->ctx->config.root, "general.reconnect_delay_max");
 	return MIN (delay, delay_max);
 }
 
@@ -10992,8 +10996,8 @@ plugin_unload (struct app_context *ctx, const char *name)
 static void
 load_plugins (struct app_context *ctx)
 {
-	const char *plugins = get_config_string
-		(ctx->config.root, "behaviour.plugin_autoload");
+	const char *plugins =
+		get_config_string (ctx->config.root, "general.plugin_autoload");
 	if (plugins)
 	{
 		struct strv v = strv_make ();
@@ -13233,8 +13237,7 @@ static struct strv
 build_editor_command (struct app_context *ctx, const char *filename)
 {
 	struct strv argv = strv_make ();
-	const char *editor = get_config_string
-		(ctx->config.root, "behaviour.editor_command");
+	const char *editor = get_config_string (ctx->config.root, "general.editor");
 	if (!editor)
 	{
 		const char *command;
@@ -13242,8 +13245,8 @@ build_editor_command (struct app_context *ctx, const char *filename)
 		 && !(command = getenv ("EDITOR")))
 			command = "vi";
 
-		// Although most visual editors support a "+LINE" argument (every
-		// editor mentioned in the default value of behaviour.editor_command,
+		// Although most visual editors support a "+LINE" argument
+		// (every editor mentioned in the default value of general.editor,
 		// plus vi, mcedit, vis, ...), it isn't particularly useful by itself.
 		// We need to be able to specify the column number.
 		//
@@ -13403,28 +13406,27 @@ input_editor_cleanup (struct app_context *ctx)
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
 static void
-launch_backlog_helper (struct app_context *ctx, int backlog_fd,
-	const char *name, const char *path)
+launch_pager (struct app_context *ctx,
+	int fd, const char *name, const char *path)
 {
-	hard_assert (!ctx->running_backlog_helper);
+	hard_assert (!ctx->running_pager);
 	switch (spawn_helper_child (ctx))
 	{
 	case 0:
-		dup2 (backlog_fd, STDIN_FILENO);
+		dup2 (fd, STDIN_FILENO);
 		char *localized_name =
 			iconv_xstrdup (ctx->term_from_utf8, (char *) name, -1, NULL);
 		execl ("/bin/sh", "/bin/sh", "-c",
-			get_config_string (ctx->config.root, "behaviour.backlog_helper"),
+			get_config_string (ctx->config.root, "general.pager"),
 			PROGRAM_NAME, localized_name, path, NULL);
-		print_error ("%s: %s",
-			"Failed to launch backlog helper", strerror (errno));
+		print_error ("%s: %s", "Failed to launch pager", strerror (errno));
 		_exit (EXIT_FAILURE);
 	case -1:
 		log_global_error (ctx, "#s: #l",
-			"Failed to launch backlog helper", strerror (errno));
+			"Failed to launch pager", strerror (errno));
 		break;
 	default:
-		ctx->running_backlog_helper = true;
+		ctx->running_pager = true;
 	}
 }
 
@@ -13440,7 +13442,7 @@ display_backlog (struct app_context *ctx, int flush_opts)
 	}
 
 	if (!get_config_boolean (ctx->config.root,
-		"behaviour.backlog_helper_strip_formatting"))
+		"general.pager_strip_formatting"))
 		flush_opts |= FLUSH_OPT_RAW;
 
 	struct buffer *buffer = ctx->current_buffer;
@@ -13460,7 +13462,7 @@ display_backlog (struct app_context *ctx, int flush_opts)
 
 	rewind (backlog);
 	set_cloexec (fileno (backlog));
-	launch_backlog_helper (ctx, fileno (backlog), buffer->name, NULL);
+	launch_pager (ctx, fileno (backlog), buffer->name, NULL);
 	fclose (backlog);
 	return true;
 }
@@ -13504,7 +13506,7 @@ on_display_full_log (int count, int key, void *user_data)
 		(void) fflush (buffer->log_file);
 
 	set_cloexec (fileno (full_log));
-	launch_backlog_helper (ctx, fileno (full_log), buffer->name, path);
+	launch_pager (ctx, fileno (full_log), buffer->name, path);
 	fclose (full_log);
 	free (path);
 	return true;
@@ -13967,7 +13969,7 @@ static const char *g_first_time_help[] =
 	"",
 	"To get a list of all commands, type \x02/help\x02.  To obtain",
 	"more information on a command or option, simply add it as",
-	"a parameter, e.g. \x02/help set\x02 or \x02/help behaviour.logging\x02.",
+	"a parameter, e.g. \x02/help set\x02 or \x02/help general.logging\x02.",
 	"",
 	"To switch between buffers, press \x02"
 		"F5/Ctrl-P\x02 or \x02" "F6/Ctrl-N\x02.",
@@ -14174,8 +14176,8 @@ try_reap_child (struct app_context *ctx)
 		return true;
 	}
 
-	if (ctx->running_backlog_helper)
-		ctx->running_backlog_helper = false;
+	if (ctx->running_pager)
+		ctx->running_pager = false;
 	else if (!ctx->running_editor)
 	{
 		log_global_debug (ctx, "An unknown child has died");
@@ -14292,7 +14294,7 @@ done:
 static bool
 insert_paste (struct app_context *ctx, char *paste, size_t len)
 {
-	if (!get_config_boolean (ctx->config.root, "behaviour.process_pasted_text"))
+	if (!get_config_boolean (ctx->config.root, "general.process_pasted_text"))
 		return CALL_ (ctx->input, insert, paste);
 
 	// Without ICRNL, which Editline keeps but Readline doesn't,
@@ -14379,7 +14381,7 @@ reset_autoaway (struct app_context *ctx)
 
 	// And potentially start a new auto-away timer
 	int64_t delay = get_config_integer
-		(ctx->config.root, "behaviour.autoaway_delay");
+		(ctx->config.root, "general.autoaway_delay");
 	if (delay)
 		poller_timer_set (&ctx->autoaway_tmr, delay * 1000);
 }
@@ -14389,7 +14391,7 @@ on_autoaway_timer (struct app_context *ctx)
 {
 	// An empty message would unset any away status, so let's ignore that
 	const char *message = get_config_string
-		(ctx->config.root, "behaviour.autoaway_message");
+		(ctx->config.root, "general.autoaway_message");
 	if (!message || !*message)
 		return;
 
@@ -14746,7 +14748,7 @@ main (int argc, char *argv[])
 
 	CALL (ctx.input, stop);
 
-	if (get_config_boolean (ctx.config.root, "behaviour.save_on_quit"))
+	if (get_config_boolean (ctx.config.root, "general.save_on_quit"))
 		save_configuration (&ctx);
 
 	app_context_free (&ctx);