Command prompt for interactive commands.

CHANGES

@@ -1,5 +1,7 @@
 19 June 2008
 
+* Allow commands to be entered at a prompt. This is triggered with the
+  command-prompt command, bound to : by default.
 * Show status messages properly, without blocking the server.
 
 18 June 2008
@@ -507,4 +509,4 @@
   (including mutt, emacs). No status bar yet and no key remapping or other
   customisation.
 
-$Id: CHANGES,v 1.126 2008-06-19 19:37:39 nicm Exp $
+$Id: CHANGES,v 1.127 2008-06-19 20:45:15 nicm Exp $

GNUmakefile

@@ -1,4 +1,4 @@
-# $Id: GNUmakefile,v 1.27 2008-06-18 20:58:03 nicm Exp $
+# $Id: GNUmakefile,v 1.28 2008-06-19 20:45:20 nicm Exp $
 
 .PHONY: clean
 
@@ -14,7 +14,8 @@ META?= \002
 SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
       xmalloc.c xmalloc-debug.c input.c input-keys.c screen.c screen-display.c \
       window.c session.c log.c client.c client-msg.c client-fn.c cfg.c \
-      key-string.c key-bindings.c resize.c arg.c cmd.c cmd-generic.c \
+      key-string.c key-bindings.c resize.c arg.c \
+      cmd.c cmd-generic.c cmd-string.c \
       cmd-detach-client.c cmd-list-sessions.c cmd-new-window.c cmd-bind-key.c \
       cmd-unbind-key.c cmd-previous-window.c cmd-last-window.c cmd-list-keys.c \
       cmd-set-option.c cmd-rename-window.c cmd-select-window.c \
@@ -25,7 +26,7 @@ SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
       cmd-switch-client.c cmd-has-session.c cmd-scroll-mode.c cmd-copy-mode.c \
       cmd-paste-buffer.c cmd-new-session.c cmd-start-server.c \
       cmd-kill-server.c cmd-set-window-option.c cmd-show-options.c \
-      cmd-show-window-options.c \
+      cmd-show-window-options.c cmd-command-prompt.c \
       window-scroll.c window-more.c window-copy.c options.c \
       tty.c tty-keys.c tty-write.c screen-write.c screen-redraw.c
 

Makefile

@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.62 2008-06-18 16:34:48 nicm Exp $
+# $Id: Makefile,v 1.63 2008-06-19 20:45:20 nicm Exp $
 
 .SUFFIXES: .c .o .y .h
 .PHONY: clean update-index.html upload-index.html
@@ -18,7 +18,8 @@ META?= \002 # C-b
 SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
       xmalloc.c xmalloc-debug.c input.c input-keys.c screen.c screen-display.c \
       window.c session.c log.c client.c client-msg.c client-fn.c cfg.c \
-      key-string.c key-bindings.c resize.c arg.c cmd.c cmd-generic.c \
+      key-string.c key-bindings.c resize.c arg.c \
+      cmd.c cmd-generic.c cmd-string.c \
       cmd-detach-client.c cmd-list-sessions.c cmd-new-window.c cmd-bind-key.c \
       cmd-unbind-key.c cmd-previous-window.c cmd-last-window.c cmd-list-keys.c \
       cmd-set-option.c cmd-rename-window.c cmd-select-window.c \
@@ -29,7 +30,7 @@ SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
       cmd-switch-client.c cmd-has-session.c cmd-scroll-mode.c cmd-copy-mode.c \
       cmd-paste-buffer.c cmd-new-session.c cmd-start-server.c \
       cmd-kill-server.c cmd-set-window-option.c cmd-show-options.c \
-      cmd-show-window-options.c \
+      cmd-show-window-options.c cmd-command-prompt.c \
       window-scroll.c window-more.c window-copy.c options.c \
       tty.c tty-keys.c tty-write.c screen-write.c screen-redraw.c
 

cmd-command-prompt.c

@@ -0,0 +1,94 @@
+/* $Id: cmd-command-prompt.c,v 1.1 2008-06-19 20:45:20 nicm Exp $ */
+
+/*
+ * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <ctype.h>
+
+#include "tmux.h"
+
+/*
+ * Prompt for command in client.
+ */
+
+void	cmd_command_prompt_exec(struct cmd *, struct cmd_ctx *);
+
+void	cmd_command_prompt_callback(void *, char *);
+
+const struct cmd_entry cmd_command_prompt_entry = {
+	"command-prompt", NULL,
+	CMD_TARGET_CLIENT_USAGE,
+	0,
+	cmd_target_init,
+	cmd_target_parse,
+	cmd_command_prompt_exec,
+	cmd_target_send,
+	cmd_target_recv,
+	cmd_target_free,
+	cmd_target_print
+};
+
+void
+cmd_command_prompt_exec(struct cmd *self, struct cmd_ctx *ctx)
+{
+	struct cmd_target_data	*data = self->data;
+	struct client		*c;
+
+	if ((c = cmd_find_client(ctx, data->target)) == NULL)
+		return;
+
+	if (c->prompt_string != NULL)
+		return;
+
+	server_set_client_prompt(c, ":", cmd_command_prompt_callback, c);
+
+	if (ctx->cmdclient != NULL)
+		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
+}
+
+void
+cmd_command_prompt_callback(void *data, char *s)
+{
+	struct client	*c = data;
+	struct cmd	*cmd;
+	struct cmd_ctx	 ctx;
+	char		*cause;
+
+	if (s == NULL)
+		return;
+
+	if ((cmd = cmd_string_parse(s, &cause)) == NULL) {
+		*cause = toupper((u_char) *cause);
+		server_set_client_message(c, cause);
+		xfree(cause);
+		return;
+	}
+	
+	ctx.msgdata = NULL;
+	ctx.cursession = c->session;
+	ctx.curclient = c;
+
+	ctx.error = key_bindings_error;
+	ctx.print = key_bindings_print;
+	ctx.info = key_bindings_info;
+
+	ctx.cmdclient = NULL;
+	ctx.flags = CMD_KEY;
+
+	cmd_exec(cmd, &ctx);
+}

cmd-string.c

@@ -0,0 +1,171 @@
+/* $Id: cmd-string.c,v 1.1 2008-06-19 20:45:20 nicm Exp $ */
+
+/*
+ * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Parse a command from a string.
+ */
+
+int	cmd_string_getc(const char *, size_t *);
+char   *cmd_string_string(const char *, size_t *, char, int);
+
+int
+cmd_string_getc(const char *s, size_t *p)
+{
+	if (s[*p] == '\0')
+		return (EOF);
+	return (s[(*p)++]);
+}
+
+struct cmd *
+cmd_string_parse(const char *s, char **cause)
+{
+	size_t	p;
+	int		ch, argc;
+	char	      **argv, *buf, *t;
+	size_t		len;
+	struct cmd     *cmd;
+
+	argv = NULL;
+	argc = 0;
+
+	buf = NULL;
+	len = 0;
+
+	cmd = NULL;
+
+	p = 0;
+	for (;;) {
+		ch = cmd_string_getc(s, &p);
+		switch (ch) {
+		case '\'':
+			if ((t = cmd_string_string(s, &p, '\'', 0)) == NULL)
+				goto error;
+			argv = xrealloc(argv, argc + 1, sizeof *argv);
+			argv[argc++] = t;
+			break;
+		case '"':
+			if ((t = cmd_string_string(s, &p, '"', 1)) == NULL)
+				goto error;
+			argv = xrealloc(argv, argc + 1, sizeof *argv);
+			argv[argc++] = t;
+			break;
+		case '#':
+			/* Comment: discard rest of line. */
+			while ((ch = cmd_string_getc(s, &p)) != EOF)
+				;
+			/* FALLTHROUGH */
+		case EOF:
+		case ' ':
+		case '\t':
+ 			if (len != 0) {
+				buf = xrealloc(buf, 1, len + 1);
+				buf[len] = '\0';
+
+				argv = xrealloc(argv, argc + 1, sizeof *argv);
+				argv[argc++] = buf;
+
+				buf = NULL;
+				len = 0;
+			}
+
+			if (ch != EOF)
+				break;
+
+			cmd = cmd_parse(argc, argv, cause);
+			goto out;
+		default:
+			if (len >= SIZE_MAX - 2)
+				goto error;
+
+			buf = xrealloc(buf, 1, len + 1);
+			buf[len++] = ch;
+			break;
+		}
+	}
+	
+error:
+	xasprintf(cause, "bad command: %s", s);
+	
+out:
+	if (buf != NULL)
+		xfree(buf);
+
+	while (--argc >= 0)
+		xfree(argv[argc]);
+	if (argv != NULL)
+		xfree(argv);
+
+	return (cmd);
+}
+
+char *
+cmd_string_string(const char *s, size_t *p, char endch, int esc)
+{
+	int	ch;
+	char   *buf;
+	size_t	len;
+
+        buf = NULL;
+	len = 0;
+
+        while ((ch = cmd_string_getc(s, p)) != endch) {
+                switch (ch) {
+		case EOF:
+			goto error;
+                case '\\':
+			if (!esc)
+				break;
+                        switch (ch = cmd_string_getc(s, p)) {
+			case EOF:
+				goto error;
+                        case 'r':
+                                ch = '\r';
+                                break;
+                        case 'n':
+                                ch = '\n';
+                                break;
+                        case 't':
+                                ch = '\t';
+                                break;
+                        }
+                        break;
+                }
+
+		if (len >= SIZE_MAX - 2)
+			goto error;
+		buf = xrealloc(buf, 1, len + 1);
+                buf[len++] = ch;
+        }
+
+	buf = xrealloc(buf, 1, len + 1);
+	buf[len] = '\0';
+	return (buf);
+
+error:
+	if (buf != NULL)
+		xfree(buf);
+	return (NULL);
+}

cmd.c

@@ -1,4 +1,4 @@
-/* $Id: cmd.c,v 1.49 2008-06-18 22:21:51 nicm Exp $ */
+/* $Id: cmd.c,v 1.50 2008-06-19 20:45:20 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -29,6 +29,7 @@
 const struct cmd_entry *cmd_table[] = {
 	&cmd_attach_session_entry,
 	&cmd_bind_key_entry,
+	&cmd_command_prompt_entry,
 	&cmd_copy_mode_entry,
 	&cmd_detach_client_entry,
 	&cmd_has_session_entry,

key-bindings.c

@@ -1,4 +1,4 @@
-/* $Id: key-bindings.c,v 1.31 2008-06-16 17:35:40 nicm Exp $ */
+/* $Id: key-bindings.c,v 1.32 2008-06-19 20:45:20 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -26,10 +26,6 @@
 
 struct bindings	key_bindings;
 
-void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
-void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
-void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
-
 void
 key_bindings_add(int key, struct cmd *cmd)
 {
@@ -112,6 +108,7 @@ key_bindings_init(void)
 		{ '=', &cmd_scroll_mode_entry },
 		{ '[', &cmd_copy_mode_entry },
 		{ ']', &cmd_paste_buffer_entry },
+		{ ':', &cmd_command_prompt_entry },
 		{ META, &cmd_send_prefix_entry },
 	};
 	u_int		 i;
@@ -156,7 +153,7 @@ key_bindings_error(struct cmd_ctx *ctx, const char *fmt, ...)
 	va_end(ap);
 
 	*msg = toupper((u_char) *msg);
-	server_write_message(ctx->curclient, "%s", msg);
+ 	server_set_client_message(ctx->curclient, msg);
 	xfree(msg);
 }
 
@@ -187,7 +184,7 @@ key_bindings_info(struct cmd_ctx *ctx, const char *fmt, ...)
 	va_end(ap);
 
 	*msg = toupper((u_char) *msg);
-	server_write_message(ctx->curclient, "%s", msg);
+ 	server_set_client_message(ctx->curclient, msg);
 	xfree(msg);
 }
 

server-fn.c

@@ -1,4 +1,4 @@
-/* $Id: server-fn.c,v 1.44 2008-06-19 19:40:34 nicm Exp $ */
+/* $Id: server-fn.c,v 1.45 2008-06-19 20:45:20 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -200,18 +200,3 @@ server_status_window(struct window *w)
 			server_status_session(s);
 	}
 }
-
-void printflike2
-server_write_message(struct client *c, const char *fmt, ...)
-{
-	va_list	ap;
-	char   *msg;
-
-	va_start(ap, fmt);
-	xvasprintf(&msg, fmt, ap);
-	va_end(ap);
-
-	server_set_client_message(c, msg);
-
-	xfree(msg);
-}

tmux.h

@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.153 2008-06-19 19:40:35 nicm Exp $ */
+/* $Id: tmux.h,v 1.154 2008-06-19 20:45:21 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -867,6 +867,7 @@ struct winlink	*cmd_find_window(
     		     struct cmd_ctx *, const char *, struct session **);
 extern const struct cmd_entry cmd_attach_session_entry;
 extern const struct cmd_entry cmd_bind_key_entry;
+extern const struct cmd_entry cmd_command_prompt_entry;
 extern const struct cmd_entry cmd_copy_mode_entry;
 extern const struct cmd_entry cmd_detach_client_entry;
 extern const struct cmd_entry cmd_has_session_entry;
@@ -901,6 +902,9 @@ extern const struct cmd_entry cmd_switch_client_entry;
 extern const struct cmd_entry cmd_unbind_key_entry;
 extern const struct cmd_entry cmd_unlink_window_entry;
 
+/* cmd-string.c */
+struct cmd *cmd_string_parse(const char *, char **);
+
 /* cmd-generic.c */
 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
@@ -944,6 +948,9 @@ void	 key_bindings_remove(int);
 void	 key_bindings_init(void);
 void	 key_bindings_free(void);
 void	 key_bindings_dispatch(int, struct client *);
+void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
+void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
+void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
 
 /* key-string.c */
 int	 key_string_lookup_string(const char *);
@@ -976,7 +983,6 @@ void	 server_redraw_session(struct session *);
 void	 server_status_session(struct session *);
 void	 server_redraw_window(struct window *);
 void	 server_status_window(struct window *);
-void printflike2 server_write_message(struct client *, const char *, ...);
 
 /* status.c */
 void	 status_redraw(struct client *);