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/* $Id: cmd-paste-buffer.c,v 1.29 2010/08/11 22:17:32 tcunha 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Paste paste buffer if present.
*/
struct cmd_paste_buffer_data {
char *target;
int buffer;
int flag_delete;
char *sepstr;
};
void cmd_paste_buffer_init(struct cmd *, int);
int cmd_paste_buffer_parse(struct cmd *, int, char **, char **);
int cmd_paste_buffer_exec(struct cmd *, struct cmd_ctx *);
void cmd_paste_buffer_filter(
struct window_pane *, const char *, size_t, char *);
void cmd_paste_buffer_free(struct cmd *);
size_t cmd_paste_buffer_print(struct cmd *, char *, size_t);
const struct cmd_entry cmd_paste_buffer_entry = {
"paste-buffer", "pasteb",
"[-dr] [-s separator] [-b buffer-index] [-t target-pane]",
0, "",
cmd_paste_buffer_init,
cmd_paste_buffer_parse,
cmd_paste_buffer_exec,
cmd_paste_buffer_free,
cmd_paste_buffer_print
};
/* ARGSUSED */
void
cmd_paste_buffer_init(struct cmd *self, unused int arg)
{
struct cmd_paste_buffer_data *data;
self->data = data = xmalloc(sizeof *data);
data->target = NULL;
data->buffer = -1;
data->flag_delete = 0;
data->sepstr = xstrdup("\r");
}
int
cmd_paste_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_paste_buffer_data *data;
int opt, n;
const char *errstr;
cmd_paste_buffer_init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, "b:ds:t:r")) != -1) {
switch (opt) {
case 'b':
if (data->buffer == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "buffer %s", errstr);
goto error;
}
data->buffer = n;
}
break;
case 'd':
data->flag_delete = 1;
break;
case 's':
if (data->sepstr != NULL)
xfree(data->sepstr);
data->sepstr = xstrdup(optarg);
break;
case 't':
if (data->target == NULL)
data->target = xstrdup(optarg);
break;
case 'r':
if (data->sepstr != NULL)
xfree(data->sepstr);
data->sepstr = xstrdup("\n");
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
error:
self->entry->free(self);
return (-1);
}
int
cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_paste_buffer_data *data = self->data;
struct window_pane *wp;
struct session *s;
struct paste_buffer *pb;
if (cmd_find_pane(ctx, data->target, &s, &wp) == NULL)
return (-1);
if (data->buffer == -1)
pb = paste_get_top(&s->buffers);
else {
if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) {
ctx->error(ctx, "no buffer %d", data->buffer);
return (-1);
}
}
if (pb != NULL)
cmd_paste_buffer_filter(wp, pb->data, pb->size, data->sepstr);
/* Delete the buffer if -d. */
if (data->flag_delete) {
if (data->buffer == -1)
paste_free_top(&s->buffers);
else
paste_free_index(&s->buffers, data->buffer);
}
return (0);
}
/* Add bytes to a buffer and filter '\n' according to separator. */
void
cmd_paste_buffer_filter(
struct window_pane *wp, const char *data, size_t size, char *sep)
{
const char *end = data + size;
const char *lf;
size_t seplen;
seplen = strlen(sep);
while ((lf = memchr(data, '\n', end - data)) != NULL) {
if (lf != data)
bufferevent_write(wp->event, data, lf - data);
bufferevent_write(wp->event, sep, seplen);
data = lf + 1;
}
if (end != data)
bufferevent_write(wp->event, data, end - data);
}
void
cmd_paste_buffer_free(struct cmd *self)
{
struct cmd_paste_buffer_data *data = self->data;
if (data->target != NULL)
xfree(data->target);
if (data->sepstr != NULL)
xfree(data->sepstr);
xfree(data);
}
size_t
cmd_paste_buffer_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_paste_buffer_data *data = self->data;
size_t off = 0;
char tmp[BUFSIZ];
int r_flag;
r_flag = 0;
if (data->sepstr != NULL)
r_flag = (data->sepstr[0] == '\n' && data->sepstr[1] == '\0');
off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
if (off < len && data->flag_delete)
off += xsnprintf(buf + off, len - off, " -d");
if (off < len && r_flag)
off += xsnprintf(buf + off, len - off, " -r");
if (off < len && data->buffer != -1)
off += xsnprintf(buf + off, len - off, " -b %d", data->buffer);
if (off < len && data->sepstr != NULL && !r_flag) {
strnvis(
tmp, data->sepstr, sizeof tmp, VIS_OCTAL|VIS_TAB|VIS_NL);
off += cmd_prarg(buf + off, len - off, " -s ", tmp);
}
if (off < len && data->target != NULL)
off += cmd_prarg(buf + off, len - off, " -t ", data->target);
return (off);
}