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Annotation of src/usr.bin/tmux/cmd-capture-pane.c, Revision 1.9

1.9     ! nicm        1: /* $OpenBSD: cmd-capture-pane.c,v 1.8 2011/05/08 20:37:04 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2009 Jonathan Alvarado <radobobo@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:
1.4       nicm       21: #include <stdlib.h>
1.1       nicm       22: #include <string.h>
                     23:
                     24: #include "tmux.h"
                     25:
                     26: /*
                     27:  * Write the entire contents of a pane to a buffer.
                     28:  */
                     29:
                     30: int    cmd_capture_pane_exec(struct cmd *, struct cmd_ctx *);
                     31:
                     32: const struct cmd_entry cmd_capture_pane_entry = {
                     33:        "capture-pane", "capturep",
1.7       nicm       34:        "b:E:S:t:", 0, 0,
                     35:        "[-b buffer-index] [-E end-line] [-S start-line] [-t target-pane]",
1.6       nicm       36:        0,
                     37:        NULL,
                     38:        NULL,
                     39:        cmd_capture_pane_exec
1.1       nicm       40: };
                     41:
                     42: int
                     43: cmd_capture_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
                     44: {
1.6       nicm       45:        struct args             *args = self->args;
                     46:        struct window_pane      *wp;
                     47:        char                    *buf, *line, *cause;
                     48:        struct screen           *s;
1.7       nicm       49:        struct grid             *gd;
                     50:        int                      buffer, n;
                     51:        u_int                    i, limit, top, bottom, tmp;
1.6       nicm       52:        size_t                   len, linelen;
1.1       nicm       53:
1.6       nicm       54:        if (cmd_find_pane(ctx, args_get(args, 't'), NULL, &wp) == NULL)
1.1       nicm       55:                return (-1);
                     56:        s = &wp->base;
1.7       nicm       57:        gd = s->grid;
1.1       nicm       58:
                     59:        buf = NULL;
                     60:        len = 0;
                     61:
1.7       nicm       62:        n = args_strtonum(args, 'S', SHRT_MIN, SHRT_MAX, &cause);
1.8       nicm       63:        if (cause != NULL) {
1.7       nicm       64:                top = gd->hsize;
1.8       nicm       65:                xfree(cause);
                     66:        } else if (n < 0 && (u_int) -n > gd->hsize)
1.7       nicm       67:                top = 0;
                     68:        else
                     69:                top = gd->hsize + n;
                     70:        if (top > gd->hsize + gd->sy - 1)
                     71:                top = gd->hsize + gd->sy - 1;
                     72:
                     73:        n = args_strtonum(args, 'E', SHRT_MIN, SHRT_MAX, &cause);
1.8       nicm       74:        if (cause != NULL) {
1.7       nicm       75:                bottom = gd->hsize + gd->sy - 1;
1.8       nicm       76:                xfree(cause);
                     77:        } else if (n < 0 && (u_int) -n > gd->hsize)
1.7       nicm       78:                bottom = 0;
                     79:        else
                     80:                bottom = gd->hsize + n;
                     81:        if (bottom > gd->hsize + gd->sy - 1)
                     82:                bottom = gd->hsize + gd->sy - 1;
                     83:
                     84:        if (bottom < top) {
                     85:                tmp = bottom;
                     86:                bottom = top;
                     87:                top = tmp;
                     88:        }
                     89:
                     90:        for (i = top; i <= bottom; i++) {
                     91:               line = grid_string_cells(s->grid, 0, i, screen_size_x(s));
1.1       nicm       92:               linelen = strlen(line);
                     93:
                     94:               buf = xrealloc(buf, 1, len + linelen + 1);
                     95:               memcpy(buf + len, line, linelen);
                     96:               len += linelen;
                     97:               buf[len++] = '\n';
1.3       nicm       98:
                     99:               xfree(line);
1.1       nicm      100:        }
                    101:
1.4       nicm      102:        limit = options_get_number(&global_options, "buffer-limit");
1.6       nicm      103:
                    104:        if (!args_has(args, 'b')) {
1.4       nicm      105:                paste_add(&global_buffers, buf, len, limit);
1.1       nicm      106:                return (0);
                    107:        }
1.6       nicm      108:
                    109:        buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
                    110:        if (cause != NULL) {
                    111:                ctx->error(ctx, "buffer %s", cause);
1.9     ! nicm      112:                xfree(buf);
1.6       nicm      113:                xfree(cause);
                    114:                return (-1);
                    115:        }
                    116:
                    117:        if (paste_replace(&global_buffers, buffer, buf, len) != 0) {
                    118:                ctx->error(ctx, "no buffer %d", buffer);
1.1       nicm      119:                xfree(buf);
                    120:                return (-1);
                    121:        }
1.6       nicm      122:
1.1       nicm      123:        return (0);
                    124: }