mirror of
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223 lines
5.4 KiB
C
223 lines
5.4 KiB
C
/* $Id: cmd-paste-buffer.c,v 1.28 2010-06-06 00:03:02 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Paste paste buffer if present.
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*/
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struct cmd_paste_buffer_data {
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char *target;
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int buffer;
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int flag_delete;
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char *sepstr;
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};
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void cmd_paste_buffer_init(struct cmd *, int);
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int cmd_paste_buffer_parse(struct cmd *, int, char **, char **);
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int cmd_paste_buffer_exec(struct cmd *, struct cmd_ctx *);
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void cmd_paste_buffer_filter(
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struct window_pane *, const char *, size_t, char *);
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void cmd_paste_buffer_free(struct cmd *);
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size_t cmd_paste_buffer_print(struct cmd *, char *, size_t);
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const struct cmd_entry cmd_paste_buffer_entry = {
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"paste-buffer", "pasteb",
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"[-dr] [-s separator] [-b buffer-index] [-t target-window]",
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0, "",
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cmd_paste_buffer_init,
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cmd_paste_buffer_parse,
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cmd_paste_buffer_exec,
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cmd_paste_buffer_free,
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cmd_paste_buffer_print
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};
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/* ARGSUSED */
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void
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cmd_paste_buffer_init(struct cmd *self, unused int arg)
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{
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struct cmd_paste_buffer_data *data;
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self->data = data = xmalloc(sizeof *data);
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data->target = NULL;
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data->buffer = -1;
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data->flag_delete = 0;
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data->sepstr = xstrdup("\r");
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}
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int
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cmd_paste_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
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{
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struct cmd_paste_buffer_data *data;
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int opt, n;
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const char *errstr;
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cmd_paste_buffer_init(self, 0);
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data = self->data;
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while ((opt = getopt(argc, argv, "b:ds:t:r")) != -1) {
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switch (opt) {
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case 'b':
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if (data->buffer == -1) {
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n = strtonum(optarg, 0, INT_MAX, &errstr);
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if (errstr != NULL) {
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xasprintf(cause, "buffer %s", errstr);
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goto error;
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}
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data->buffer = n;
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}
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break;
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case 'd':
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data->flag_delete = 1;
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break;
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case 's':
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if (data->sepstr != NULL)
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xfree(data->sepstr);
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data->sepstr = xstrdup(optarg);
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break;
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case 't':
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if (data->target == NULL)
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data->target = xstrdup(optarg);
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break;
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case 'r':
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if (data->sepstr != NULL)
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xfree(data->sepstr);
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data->sepstr = xstrdup("\n");
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break;
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default:
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goto usage;
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}
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}
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argc -= optind;
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argv += optind;
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return (0);
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usage:
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xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
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error:
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self->entry->free(self);
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return (-1);
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}
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int
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cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_paste_buffer_data *data = self->data;
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struct window_pane *wp;
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struct session *s;
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struct paste_buffer *pb;
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if (cmd_find_pane(ctx, data->target, &s, &wp) == NULL)
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return (-1);
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if (data->buffer == -1)
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pb = paste_get_top(&s->buffers);
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else {
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if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) {
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ctx->error(ctx, "no buffer %d", data->buffer);
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return (-1);
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}
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}
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if (pb != NULL)
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cmd_paste_buffer_filter(wp, pb->data, pb->size, data->sepstr);
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/* Delete the buffer if -d. */
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if (data->flag_delete) {
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if (data->buffer == -1)
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paste_free_top(&s->buffers);
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else
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paste_free_index(&s->buffers, data->buffer);
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}
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return (0);
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}
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/* Add bytes to a buffer and filter '\n' according to separator. */
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void
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cmd_paste_buffer_filter(
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struct window_pane *wp, const char *data, size_t size, char *sep)
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{
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const char *end = data + size;
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const char *lf;
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size_t seplen;
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seplen = strlen(sep);
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while ((lf = memchr(data, '\n', end - data)) != NULL) {
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if (lf != data)
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bufferevent_write(wp->event, data, lf - data);
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bufferevent_write(wp->event, sep, seplen);
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data = lf + 1;
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}
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if (end != data)
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bufferevent_write(wp->event, data, end - data);
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}
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void
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cmd_paste_buffer_free(struct cmd *self)
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{
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struct cmd_paste_buffer_data *data = self->data;
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if (data->target != NULL)
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xfree(data->target);
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if (data->sepstr != NULL)
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xfree(data->sepstr);
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xfree(data);
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}
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size_t
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cmd_paste_buffer_print(struct cmd *self, char *buf, size_t len)
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{
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struct cmd_paste_buffer_data *data = self->data;
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size_t off = 0;
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char tmp[BUFSIZ];
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int r_flag;
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r_flag = 0;
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if (data->sepstr != NULL)
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r_flag = (data->sepstr[0] == '\n' && data->sepstr[1] == '\0');
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off += xsnprintf(buf, len, "%s", self->entry->name);
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if (data == NULL)
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return (off);
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if (off < len && data->flag_delete)
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off += xsnprintf(buf + off, len - off, " -d");
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if (off < len && r_flag)
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off += xsnprintf(buf + off, len - off, " -r");
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if (off < len && data->buffer != -1)
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off += xsnprintf(buf + off, len - off, " -b %d", data->buffer);
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if (off < len && data->sepstr != NULL && !r_flag) {
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strnvis(
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tmp, data->sepstr, sizeof tmp, VIS_OCTAL|VIS_TAB|VIS_NL);
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off += cmd_prarg(buf + off, len - off, " -s ", tmp);
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}
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if (off < len && data->target != NULL)
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off += cmd_prarg(buf + off, len - off, " -t ", data->target);
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return (off);
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}
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