xref: /openbsd-src/usr.bin/tmux/cmd-paste-buffer.c (revision 0b7734b3d77bb9b21afec6f4621cae6c805dbd45)
1 /* $OpenBSD: cmd-paste-buffer.c,v 1.34 2016/01/19 15:59:12 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/types.h>
20 
21 #include <stdlib.h>
22 #include <string.h>
23 #include <vis.h>
24 
25 #include "tmux.h"
26 
27 /*
28  * Paste paste buffer if present.
29  */
30 
31 enum cmd_retval	 cmd_paste_buffer_exec(struct cmd *, struct cmd_q *);
32 
33 void	cmd_paste_buffer_filter(struct window_pane *,
34 	    const char *, size_t, const char *, int);
35 
36 const struct cmd_entry cmd_paste_buffer_entry = {
37 	.name = "paste-buffer",
38 	.alias = "pasteb",
39 
40 	.args = { "db:prs:t:", 0, 0 },
41 	.usage = "[-dpr] [-s separator] " CMD_BUFFER_USAGE " "
42 		 CMD_TARGET_PANE_USAGE,
43 
44 	.tflag = CMD_PANE,
45 
46 	.flags = 0,
47 	.exec = cmd_paste_buffer_exec
48 };
49 
50 enum cmd_retval
51 cmd_paste_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
52 {
53 	struct args		*args = self->args;
54 	struct window_pane	*wp = cmdq->state.tflag.wp;
55 	struct paste_buffer	*pb;
56 	const char		*sepstr, *bufname, *bufdata, *bufend, *line;
57 	size_t			 seplen, bufsize;
58 	int			 bracket = args_has(args, 'p');
59 
60 	bufname = NULL;
61 	if (args_has(args, 'b'))
62 		bufname = args_get(args, 'b');
63 
64 	if (bufname == NULL)
65 		pb = paste_get_top(NULL);
66 	else {
67 		pb = paste_get_name(bufname);
68 		if (pb == NULL) {
69 			cmdq_error(cmdq, "no buffer %s", bufname);
70 			return (CMD_RETURN_ERROR);
71 		}
72 	}
73 
74 	if (pb != NULL && ~wp->flags & PANE_INPUTOFF) {
75 		sepstr = args_get(args, 's');
76 		if (sepstr == NULL) {
77 			if (args_has(args, 'r'))
78 				sepstr = "\n";
79 			else
80 				sepstr = "\r";
81 		}
82 		seplen = strlen(sepstr);
83 
84 		if (bracket && (wp->screen->mode & MODE_BRACKETPASTE))
85 			bufferevent_write(wp->event, "\033[200~", 6);
86 
87 		bufdata = paste_buffer_data(pb, &bufsize);
88 		bufend = bufdata + bufsize;
89 
90 		for (;;) {
91 			line = memchr(bufdata, '\n', bufend - bufdata);
92 			if (line == NULL)
93 				break;
94 
95 			bufferevent_write(wp->event, bufdata, line - bufdata);
96 			bufferevent_write(wp->event, sepstr, seplen);
97 
98 			bufdata = line + 1;
99 		}
100 		if (bufdata != bufend)
101 			bufferevent_write(wp->event, bufdata, bufend - bufdata);
102 
103 		if (bracket && (wp->screen->mode & MODE_BRACKETPASTE))
104 			bufferevent_write(wp->event, "\033[201~", 6);
105 	}
106 
107 	if (pb != NULL && args_has(args, 'd'))
108 		paste_free(pb);
109 
110 	return (CMD_RETURN_NORMAL);
111 }
112