Make confirm-before prompt customizable with -p option like

command-prompt. Also move responsibility for calling status_replace into
status_prompt_{set,update} and add #W and #P to the default kill-window
and kill-pane prompts. By Tiago Cunha.

cmd-command-prompt.c

@@ -90,8 +90,7 @@ cmd_command_prompt_exec(struct cmd *self, struct cmd_ctx *ctx)
 	const char			*inputs, *prompts;
 	struct cmd_command_prompt_cdata	*cdata;
 	struct client			*c;
-	char				*input = NULL;
+	char				*prompt, *ptr, *input = NULL;
-	char				*prompt, *prompt_replaced, *ptr;
 	size_t				 n;
 
 	if ((c = cmd_find_client(ctx, args_get(args, 't'))) == NULL)
@@ -127,28 +126,18 @@ cmd_command_prompt_exec(struct cmd *self, struct cmd_ctx *ctx)
 	ptr = strsep(&cdata->next_prompt, ",");
 	if (prompts == NULL)
 		prompt = xstrdup(ptr);
-	else {
+	else
-		prompt_replaced = status_replace(c, NULL, NULL, NULL, ptr,
+		xasprintf(&prompt, "%s ", ptr);
-		    time(NULL), 0);
-		xasprintf(&prompt, "%s ", prompt_replaced);
-		xfree(prompt_replaced);
-	}
 
 	/* Get initial prompt input. */
 	if ((inputs = args_get(args, 'I')) != NULL) {
 		cdata->inputs = xstrdup(inputs);
 		cdata->next_input = cdata->inputs;
-		ptr = strsep(&cdata->next_input, ",");
+		input = strsep(&cdata->next_input, ",");
-
-		input = status_replace(c, NULL, NULL, NULL, ptr, time(NULL),
-		    0);
 	}
 
 	status_prompt_set(c, prompt, input, cmd_command_prompt_callback,
 	    cmd_command_prompt_free, cdata, 0);
-
-	if (input != NULL)
-		xfree(input);
 	xfree(prompt);
 
 	return (0);
@@ -161,8 +150,8 @@ cmd_command_prompt_callback(void *data, const char *s)
 	struct client			*c = cdata->c;
 	struct cmd_list			*cmdlist;
 	struct cmd_ctx			 ctx;
-	char				*cause, *new_template, *prompt;
+	char				*cause, *new_template, *prompt, *ptr;
-	char				*prompt_replaced, *ptr, *input = NULL;
+	char				*input = NULL;
 
 	if (s == NULL)
 		return (0);
@@ -176,23 +165,11 @@ cmd_command_prompt_callback(void *data, const char *s)
 	 * and update the prompt data.
 	 */
 	if ((ptr = strsep(&cdata->next_prompt, ",")) != NULL) {
-		prompt_replaced = status_replace(c, NULL, NULL, NULL, ptr,
+		xasprintf(&prompt, "%s ", ptr);
-		    time(NULL), 0);
+		input = strsep(&cdata->next_input, ",");
-		xasprintf(&prompt, "%s ", prompt_replaced);
-
-		/* Find next input and expand special sequences. */
-		if ((ptr = strsep(&cdata->next_input, ",")) != NULL) {
-			input = status_replace(c, NULL, NULL, NULL, ptr,
-			    time(NULL), 0);
-		}
-
 		status_prompt_update(c, prompt, input);
 
-		if (input != NULL)
-			xfree(input);
-		xfree(prompt_replaced);
 		xfree(prompt);
-
 		cdata->idx++;
 		return (1);
 	}

cmd-confirm-before.c

@@ -33,8 +33,8 @@ void	cmd_confirm_before_free(void *);
 
 const struct cmd_entry cmd_confirm_before_entry = {
 	"confirm-before", "confirm",
-	"t:", 1, 1,
+	"p:t:", 1, 1,
-	CMD_TARGET_CLIENT_USAGE " command",
+	"[-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
 	0,
 	cmd_confirm_before_key_binding,
 	NULL,
@@ -52,9 +52,11 @@ cmd_confirm_before_key_binding(struct cmd *self, int key)
 	switch (key) {
 	case '&':
 		self->args = args_create(1, "kill-window");
+		args_set(self->args, 'p', "kill-window #W? (y/n)");
 		break;
 	case 'x':
 		self->args = args_create(1, "kill-pane");
+		args_set(self->args, 'p', "kill-pane #P? (y/n)");
 		break;
 	default:
 		self->args = args_create(0);
@@ -68,7 +70,8 @@ cmd_confirm_before_exec(struct cmd *self, struct cmd_ctx *ctx)
 	struct args			*args = self->args;
 	struct cmd_confirm_before_data	*cdata;
 	struct client			*c;
-	char				*buf, *cmd, *ptr;
+	char				*cmd, *copy, *new_prompt, *ptr;
+	const char			*prompt;
 
 	if (ctx->curclient == NULL) {
 		ctx->error(ctx, "must be run interactively");
@@ -78,19 +81,23 @@ cmd_confirm_before_exec(struct cmd *self, struct cmd_ctx *ctx)
 	if ((c = cmd_find_client(ctx, args_get(args, 't'))) == NULL)
 		return (-1);
 
-	ptr = xstrdup(args->argv[0]);
+	if ((prompt = args_get(args, 'p')) != NULL)
-	if ((cmd = strtok(ptr, " \t")) == NULL)
+		xasprintf(&new_prompt, "%s ", prompt);
-		cmd = ptr;
+	else {
-	xasprintf(&buf, "Confirm '%s'? (y/n) ", cmd);
+		ptr = copy = xstrdup(args->argv[0]);
-	xfree(ptr);
+		cmd = strsep(&ptr, " \t");
+		xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd);
+		xfree(copy);
+	}
 
 	cdata = xmalloc(sizeof *cdata);
 	cdata->cmd = xstrdup(args->argv[0]);
 	cdata->c = c;
-	status_prompt_set(cdata->c, buf, NULL, cmd_confirm_before_callback,
+	status_prompt_set(cdata->c, new_prompt, NULL,
-	    cmd_confirm_before_free, cdata, PROMPT_SINGLE);
+	    cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
+	    PROMPT_SINGLE);
 
-	xfree(buf);
+	xfree(new_prompt);
 	return (1);
 }
 

status.c

@@ -824,12 +824,13 @@ status_prompt_set(struct client *c, const char *msg, const char *input,
 	status_message_clear(c);
 	status_prompt_clear(c);
 
-	c->prompt_string = xstrdup(msg);
+	c->prompt_string = status_replace(c, NULL, NULL, NULL, msg,
+	    time(NULL), 0);
 
-	if (input != NULL)
+	if (input == NULL)
-		c->prompt_buffer = xstrdup(input);
+		input = "";
-	else
+	c->prompt_buffer = status_replace(c, NULL, NULL, NULL, input,
-		c->prompt_buffer = xstrdup("");
+	    time(NULL), 0);
 	c->prompt_index = strlen(c->prompt_buffer);
 
 	c->prompt_callbackfn = callbackfn;
@@ -877,13 +878,14 @@ void
 status_prompt_update(struct client *c, const char *msg, const char *input)
 {
 	xfree(c->prompt_string);
-	c->prompt_string = xstrdup(msg);
+	c->prompt_string = status_replace(c, NULL, NULL, NULL, msg,
+	    time(NULL), 0);
 
 	xfree(c->prompt_buffer);
-	if (input != NULL)
+	if (input == NULL)
-		c->prompt_buffer = xstrdup(input);
+		input = "";
-	else
+	c->prompt_buffer = status_replace(c, NULL, NULL, NULL, input,
-		c->prompt_buffer = xstrdup("");
+	    time(NULL), 0);
 	c->prompt_index = strlen(c->prompt_buffer);
 
 	c->prompt_hindex = 0;

tmux.1

@@ -2690,12 +2690,23 @@ to
 .Ql %9
 .Pc .
 .It Xo Ic confirm-before
+.Op Fl p Ar prompt
 .Op Fl t Ar target-client
 .Ar command
 .Xc
 .D1 (alias: Ic confirm )
 Ask for confirmation before executing
 .Ar command .
+If
+.Fl p
+is given,
+.Ar prompt
+is the prompt to display; otherwise a prompt is constructed from
+.Ar command .
+It may contain the special character sequences supported by the
+.Ic status-left
+option.
+.Pp
 This command works only from inside
 .Nm .
 .It Xo Ic display-message