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Annotation of src/usr.bin/tmux/cmd-paste-buffer.c, Revision 1.42

1.42    ! nicm        1: /* $OpenBSD: cmd-paste-buffer.c,v 1.41 2021/08/21 10:22:39 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.34      nicm        4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        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:
1.13      nicm       21: #include <stdlib.h>
1.1       nicm       22: #include <string.h>
1.13      nicm       23: #include <vis.h>
1.1       nicm       24:
                     25: #include "tmux.h"
                     26:
                     27: /*
                     28:  * Paste paste buffer if present.
                     29:  */
                     30:
1.37      nicm       31: static enum cmd_retval cmd_paste_buffer_exec(struct cmd *, struct cmdq_item *);
1.1       nicm       32:
                     33: const struct cmd_entry cmd_paste_buffer_entry = {
1.32      nicm       34:        .name = "paste-buffer",
                     35:        .alias = "pasteb",
                     36:
1.41      nicm       37:        .args = { "db:prs:t:", 0, 0, NULL },
1.32      nicm       38:        .usage = "[-dpr] [-s separator] " CMD_BUFFER_USAGE " "
                     39:                 CMD_TARGET_PANE_USAGE,
                     40:
1.38      nicm       41:        .target = { 't', CMD_FIND_PANE, 0 },
1.33      nicm       42:
1.36      nicm       43:        .flags = CMD_AFTERHOOK,
1.32      nicm       44:        .exec = cmd_paste_buffer_exec
1.1       nicm       45: };
                     46:
1.35      nicm       47: static enum cmd_retval
1.37      nicm       48: cmd_paste_buffer_exec(struct cmd *self, struct cmdq_item *item)
1.13      nicm       49: {
1.39      nicm       50:        struct args             *args = cmd_get_args(self);
1.40      nicm       51:        struct cmd_find_state   *target = cmdq_get_target(item);
                     52:        struct window_pane      *wp = target->wp;
1.16      nicm       53:        struct paste_buffer     *pb;
1.29      nicm       54:        const char              *sepstr, *bufname, *bufdata, *bufend, *line;
                     55:        size_t                   seplen, bufsize;
                     56:        int                      bracket = args_has(args, 'p');
1.42    ! nicm       57:
        !            58:        if (window_pane_exited(wp)) {
        !            59:                cmdq_error(item, "target pane has exited");
        !            60:                return (CMD_RETURN_ERROR);
        !            61:        }
1.13      nicm       62:
1.25      nicm       63:        bufname = NULL;
                     64:        if (args_has(args, 'b'))
                     65:                bufname = args_get(args, 'b');
1.13      nicm       66:
1.25      nicm       67:        if (bufname == NULL)
1.28      nicm       68:                pb = paste_get_top(NULL);
1.1       nicm       69:        else {
1.25      nicm       70:                pb = paste_get_name(bufname);
1.15      nicm       71:                if (pb == NULL) {
1.37      nicm       72:                        cmdq_error(item, "no buffer %s", bufname);
1.19      nicm       73:                        return (CMD_RETURN_ERROR);
1.1       nicm       74:                }
                     75:        }
                     76:
1.29      nicm       77:        if (pb != NULL && ~wp->flags & PANE_INPUTOFF) {
1.16      nicm       78:                sepstr = args_get(args, 's');
                     79:                if (sepstr == NULL) {
                     80:                        if (args_has(args, 'r'))
                     81:                                sepstr = "\n";
                     82:                        else
                     83:                                sepstr = "\r";
                     84:                }
1.29      nicm       85:                seplen = strlen(sepstr);
                     86:
                     87:                if (bracket && (wp->screen->mode & MODE_BRACKETPASTE))
                     88:                        bufferevent_write(wp->event, "\033[200~", 6);
                     89:
                     90:                bufdata = paste_buffer_data(pb, &bufsize);
                     91:                bufend = bufdata + bufsize;
                     92:
                     93:                for (;;) {
                     94:                        line = memchr(bufdata, '\n', bufend - bufdata);
                     95:                        if (line == NULL)
                     96:                                break;
                     97:
                     98:                        bufferevent_write(wp->event, bufdata, line - bufdata);
                     99:                        bufferevent_write(wp->event, sepstr, seplen);
                    100:
                    101:                        bufdata = line + 1;
                    102:                }
                    103:                if (bufdata != bufend)
                    104:                        bufferevent_write(wp->event, bufdata, bufend - bufdata);
                    105:
                    106:                if (bracket && (wp->screen->mode & MODE_BRACKETPASTE))
                    107:                        bufferevent_write(wp->event, "\033[201~", 6);
1.16      nicm      108:        }
1.1       nicm      109:
1.30      nicm      110:        if (pb != NULL && args_has(args, 'd'))
                    111:                paste_free(pb);
1.1       nicm      112:
1.19      nicm      113:        return (CMD_RETURN_NORMAL);
1.1       nicm      114: }