cmd-paste-buffer.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
   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 int     cmd_paste_buffer_exec(struct cmd *, struct cmd_ctx *);
  32
  33 void    cmd_paste_buffer_filter(struct window_pane *,
  34             const char *, size_t, const char *, int bracket);
  35
  36 const struct cmd_entry cmd_paste_buffer_entry = {
  37         "paste-buffer", "pasteb",
  38         "db:prs:t:", 0, 0,
  39         "[-dpr] [-s separator] [-b buffer-index] [-t target-pane]",
  40         0,
  41         NULL,
  42         NULL,
  43         cmd_paste_buffer_exec
  44 };
  45
  46 int
  47 cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
  48 {
  49         struct args             *args = self->args;
  50         struct window_pane      *wp;
  51         struct session          *s;
  52         struct paste_buffer     *pb;
  53         const char              *sepstr;
  54         char                    *cause;
  55         int                      buffer;
  56         int                      pflag;
  57
  58         if (cmd_find_pane(ctx, args_get(args, 't'), &s, &wp) == NULL)
  59                 return (-1);
  60
  61         if (!args_has(args, 'b'))
  62                 buffer = -1;
  63         else {
  64                 buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
  65                 if (cause != NULL) {
  66                         ctx->error(ctx, "buffer %s", cause);
  67                         xfree(cause);
  68                         return (-1);
  69                 }
  70         }
  71
  72         if (buffer == -1)
  73                 pb = paste_get_top(&global_buffers);
  74         else {
  75                 pb = paste_get_index(&global_buffers, buffer);
  76                 if (pb == NULL) {
  77                         ctx->error(ctx, "no buffer %d", buffer);
  78                         return (-1);
  79                 }
  80         }
  81
  82         if (pb != NULL) {
  83                 sepstr = args_get(args, 's');
  84                 if (sepstr == NULL) {
  85                         if (args_has(args, 'r'))
  86                                 sepstr = "\n";
  87                         else
  88                                 sepstr = "\r";
  89                 }
  90                 pflag = args_has(args, 'p') &&
  91                     (wp->screen->mode & MODE_BRACKETPASTE);
  92                 cmd_paste_buffer_filter(wp, pb->data, pb->size, sepstr, pflag);
  93         }
  94
  95         /* Delete the buffer if -d. */
  96         if (args_has(args, 'd')) {
  97                 if (buffer == -1)
  98                         paste_free_top(&global_buffers);
  99                 else
 100                         paste_free_index(&global_buffers, buffer);
 101         }
 102
 103         return (0);
 104 }
 105
 106 /* Add bytes to a buffer and filter '\n' according to separator. */
 107 void
 108 cmd_paste_buffer_filter(struct window_pane *wp,
 109     const char *data, size_t size, const char *sep, int bracket)
 110 {
 111         const char      *end = data + size;
 112         const char      *lf;
 113         size_t           seplen;
 114
 115         if (bracket)
 116                 bufferevent_write(wp->event, "\033[200~", 6);
 117
 118         seplen = strlen(sep);
 119         while ((lf = memchr(data, '\n', end - data)) != NULL) {
 120                 if (lf != data)
 121                         bufferevent_write(wp->event, data, lf - data);
 122                 bufferevent_write(wp->event, sep, seplen);
 123                 data = lf + 1;
 124         }
 125
 126         if (end != data)
 127                 bufferevent_write(wp->event, data, end - data);
 128
 129         if (bracket)
 130                 bufferevent_write(wp->event, "\033[201~", 6);
 131 }