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Annotation of src/usr.bin/tmux/cmd-paste-buffer.c, Revision 1.16

1.16    ! nicm        1: /* $OpenBSD: cmd-paste-buffer.c,v 1.15 2010/12/30 23:16:18 nicm Exp $ */
1.1       nicm        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:
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:
1.16    ! nicm       31: int    cmd_paste_buffer_exec(struct cmd *, struct cmd_ctx *);
1.13      nicm       32:
                     33: void   cmd_paste_buffer_filter(
1.16    ! nicm       34:            struct window_pane *, const char *, size_t, const char *);
1.1       nicm       35:
                     36: const struct cmd_entry cmd_paste_buffer_entry = {
                     37:        "paste-buffer", "pasteb",
1.16    ! nicm       38:        "db:rs:t:", 0, 0,
1.14      nicm       39:        "[-dr] [-s separator] [-b buffer-index] [-t target-pane]",
1.16    ! nicm       40:        0,
        !            41:        NULL,
        !            42:        NULL,
        !            43:        cmd_paste_buffer_exec
1.1       nicm       44: };
                     45:
1.16    ! nicm       46: int
        !            47: cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
1.13      nicm       48: {
1.16    ! nicm       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;
1.13      nicm       56:
1.16    ! nicm       57:        if (cmd_find_pane(ctx, args_get(args, 't'), &s, &wp) == NULL)
        !            58:                return (-1);
1.13      nicm       59:
1.16    ! nicm       60:        if (!args_has(args, 'b'))
        !            61:                buffer = -1;
        !            62:        else {
        !            63:                buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
        !            64:                if (cause != NULL) {
        !            65:                        ctx->error(ctx, "buffer %s", cause);
        !            66:                        xfree(cause);
        !            67:                        return (-1);
1.13      nicm       68:                }
                     69:        }
                     70:
1.16    ! nicm       71:        if (buffer == -1)
1.15      nicm       72:                pb = paste_get_top(&global_buffers);
1.1       nicm       73:        else {
1.16    ! nicm       74:                pb = paste_get_index(&global_buffers, buffer);
1.15      nicm       75:                if (pb == NULL) {
1.16    ! nicm       76:                        ctx->error(ctx, "no buffer %d", buffer);
1.1       nicm       77:                        return (-1);
                     78:                }
                     79:        }
                     80:
1.16    ! nicm       81:        if (pb != NULL) {
        !            82:                sepstr = args_get(args, 's');
        !            83:                if (sepstr == NULL) {
        !            84:                        if (args_has(args, 'r'))
        !            85:                                sepstr = "\n";
        !            86:                        else
        !            87:                                sepstr = "\r";
        !            88:                }
        !            89:                cmd_paste_buffer_filter(wp, pb->data, pb->size, sepstr);
        !            90:        }
1.1       nicm       91:
                     92:        /* Delete the buffer if -d. */
1.16    ! nicm       93:        if (args_has(args, 'd')) {
        !            94:                if (buffer == -1)
1.15      nicm       95:                        paste_free_top(&global_buffers);
1.1       nicm       96:                else
1.16    ! nicm       97:                        paste_free_index(&global_buffers, buffer);
1.1       nicm       98:        }
                     99:
1.10      nicm      100:        return (0);
1.3       nicm      101: }
                    102:
1.13      nicm      103: /* Add bytes to a buffer and filter '\n' according to separator. */
1.3       nicm      104: void
1.13      nicm      105: cmd_paste_buffer_filter(
1.16    ! nicm      106:     struct window_pane *wp, const char *data, size_t size, const char *sep)
1.3       nicm      107: {
                    108:        const char      *end = data + size;
                    109:        const char      *lf;
1.13      nicm      110:        size_t           seplen;
1.3       nicm      111:
1.13      nicm      112:        seplen = strlen(sep);
1.3       nicm      113:        while ((lf = memchr(data, '\n', end - data)) != NULL) {
                    114:                if (lf != data)
1.7       nicm      115:                        bufferevent_write(wp->event, data, lf - data);
1.13      nicm      116:                bufferevent_write(wp->event, sep, seplen);
1.3       nicm      117:                data = lf + 1;
                    118:        }
                    119:
                    120:        if (end != data)
1.7       nicm      121:                bufferevent_write(wp->event, data, end - data);
1.1       nicm      122: }