tmate/cmd-paste-buffer.c
Nicholas Marriott 3964309c67 Add a command queue to standardize and simplify commands that call other
commands and allow a command to block execution of subsequent commands. This
allows run-shell and if-shell to be synchronous which has been much requested.

Each client has a default command queue and commands are consumed one at a time
from it. A command may suspend execution from the queue by returning
CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example
run-shell does this from the callback that is fired after the job is freed.

When the command queue becomes empty, command clients are automatically exited
(unless attaching). A callback is also fired - this is used for nested commands
in, for example, if-shell which can block execution of the client's cmdq until
a new cmdq becomes empty.

Also merge all the old error/info/print functions together and lose the old
curclient/cmdclient distinction - a cmdq is bound to one client (or none if in
the configuration file), this is a command client if c->session is NULL
otherwise an attached client.
2013-02-23 22:25:58 +00:00

103 lines
2.5 KiB
C

/* $Id$ */
/*
* 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Paste paste buffer if present.
*/
enum cmd_retval cmd_paste_buffer_exec(struct cmd *, struct cmd_q *);
void cmd_paste_buffer_filter(struct window_pane *,
const char *, size_t, const char *, int);
const struct cmd_entry cmd_paste_buffer_entry = {
"paste-buffer", "pasteb",
"db:prs:t:", 0, 0,
"[-dpr] [-s separator] [-b buffer-index] " CMD_TARGET_PANE_USAGE,
0,
NULL,
NULL,
cmd_paste_buffer_exec
};
enum cmd_retval
cmd_paste_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct window_pane *wp;
struct session *s;
struct paste_buffer *pb;
const char *sepstr;
char *cause;
int buffer;
int pflag;
if (cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp) == NULL)
return (CMD_RETURN_ERROR);
if (!args_has(args, 'b'))
buffer = -1;
else {
buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
if (cause != NULL) {
cmdq_error(cmdq, "buffer %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
}
if (buffer == -1)
pb = paste_get_top(&global_buffers);
else {
pb = paste_get_index(&global_buffers, buffer);
if (pb == NULL) {
cmdq_error(cmdq, "no buffer %d", buffer);
return (CMD_RETURN_ERROR);
}
}
if (pb != NULL) {
sepstr = args_get(args, 's');
if (sepstr == NULL) {
if (args_has(args, 'r'))
sepstr = "\n";
else
sepstr = "\r";
}
pflag = (wp->screen->mode & MODE_BRACKETPASTE);
paste_send_pane(pb, wp, sepstr, args_has(args, 'p') && pflag);
}
/* Delete the buffer if -d. */
if (args_has(args, 'd')) {
if (buffer == -1)
paste_free_top(&global_buffers);
else
paste_free_index(&global_buffers, buffer);
}
return (CMD_RETURN_NORMAL);
}