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Annotation of src/usr.bin/tmux/cmd-capture-pane.c, Revision 1.13

1.13    ! nicm        1: /* $OpenBSD: cmd-capture-pane.c,v 1.12 2012/07/11 07:10:15 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:
1.12      nicm       30: enum cmd_retval         cmd_capture_pane_exec(struct cmd *, struct cmd_ctx *);
1.1       nicm       31:
                     32: const struct cmd_entry cmd_capture_pane_entry = {
                     33:        "capture-pane", "capturep",
1.7       nicm       34:        "b:E:S:t:", 0, 0,
1.13    ! nicm       35:        "[-b buffer-index] [-E end-line] [-S start-line] "
        !            36:        CMD_TARGET_PANE_USAGE,
1.6       nicm       37:        0,
                     38:        NULL,
                     39:        NULL,
                     40:        cmd_capture_pane_exec
1.1       nicm       41: };
                     42:
1.12      nicm       43: enum cmd_retval
1.1       nicm       44: cmd_capture_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
                     45: {
1.6       nicm       46:        struct args             *args = self->args;
                     47:        struct window_pane      *wp;
                     48:        char                    *buf, *line, *cause;
                     49:        struct screen           *s;
1.7       nicm       50:        struct grid             *gd;
                     51:        int                      buffer, n;
                     52:        u_int                    i, limit, top, bottom, tmp;
1.6       nicm       53:        size_t                   len, linelen;
1.1       nicm       54:
1.6       nicm       55:        if (cmd_find_pane(ctx, args_get(args, 't'), NULL, &wp) == NULL)
1.12      nicm       56:                return (CMD_RETURN_ERROR);
1.1       nicm       57:        s = &wp->base;
1.7       nicm       58:        gd = s->grid;
1.1       nicm       59:
                     60:        buf = NULL;
                     61:        len = 0;
                     62:
1.10      nicm       63:        n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
1.8       nicm       64:        if (cause != NULL) {
1.7       nicm       65:                top = gd->hsize;
1.11      nicm       66:                free(cause);
1.8       nicm       67:        } else if (n < 0 && (u_int) -n > gd->hsize)
1.7       nicm       68:                top = 0;
                     69:        else
                     70:                top = gd->hsize + n;
                     71:        if (top > gd->hsize + gd->sy - 1)
                     72:                top = gd->hsize + gd->sy - 1;
                     73:
1.10      nicm       74:        n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
1.8       nicm       75:        if (cause != NULL) {
1.7       nicm       76:                bottom = gd->hsize + gd->sy - 1;
1.11      nicm       77:                free(cause);
1.8       nicm       78:        } else if (n < 0 && (u_int) -n > gd->hsize)
1.7       nicm       79:                bottom = 0;
                     80:        else
                     81:                bottom = gd->hsize + n;
                     82:        if (bottom > gd->hsize + gd->sy - 1)
                     83:                bottom = gd->hsize + gd->sy - 1;
                     84:
                     85:        if (bottom < top) {
                     86:                tmp = bottom;
                     87:                bottom = top;
                     88:                top = tmp;
                     89:        }
                     90:
                     91:        for (i = top; i <= bottom; i++) {
                     92:               line = grid_string_cells(s->grid, 0, i, screen_size_x(s));
1.1       nicm       93:               linelen = strlen(line);
                     94:
                     95:               buf = xrealloc(buf, 1, len + linelen + 1);
                     96:               memcpy(buf + len, line, linelen);
                     97:               len += linelen;
                     98:               buf[len++] = '\n';
1.3       nicm       99:
1.11      nicm      100:               free(line);
1.1       nicm      101:        }
                    102:
1.4       nicm      103:        limit = options_get_number(&global_options, "buffer-limit");
1.6       nicm      104:
                    105:        if (!args_has(args, 'b')) {
1.4       nicm      106:                paste_add(&global_buffers, buf, len, limit);
1.12      nicm      107:                return (CMD_RETURN_NORMAL);
1.1       nicm      108:        }
1.6       nicm      109:
                    110:        buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
                    111:        if (cause != NULL) {
                    112:                ctx->error(ctx, "buffer %s", cause);
1.11      nicm      113:                free(buf);
                    114:                free(cause);
1.12      nicm      115:                return (CMD_RETURN_ERROR);
1.6       nicm      116:        }
                    117:
                    118:        if (paste_replace(&global_buffers, buffer, buf, len) != 0) {
                    119:                ctx->error(ctx, "no buffer %d", buffer);
1.11      nicm      120:                free(buf);
1.12      nicm      121:                return (CMD_RETURN_ERROR);
1.1       nicm      122:        }
1.6       nicm      123:
1.12      nicm      124:        return (CMD_RETURN_NORMAL);
1.1       nicm      125: }