mirror of
https://github.com/tmux/tmux.git
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3f6bfbaf2b
and the previous restored when the top is exited. If a mode that is already on the stack is entered, the existing instance is moved to the top as the active mode rather than being opened new.
243 lines
6.0 KiB
C
243 lines
6.0 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2009 Jonathan Alvarado <radobobo@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Write the entire contents of a pane to a buffer or stdout.
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*/
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static enum cmd_retval cmd_capture_pane_exec(struct cmd *, struct cmdq_item *);
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static char *cmd_capture_pane_append(char *, size_t *, char *, size_t);
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static char *cmd_capture_pane_pending(struct args *, struct window_pane *,
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size_t *);
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static char *cmd_capture_pane_history(struct args *, struct cmdq_item *,
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struct window_pane *, size_t *);
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const struct cmd_entry cmd_capture_pane_entry = {
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.name = "capture-pane",
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.alias = "capturep",
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.args = { "ab:CeE:JpPqS:t:", 0, 0 },
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.usage = "[-aCeJpPq] " CMD_BUFFER_USAGE " [-E end-line] "
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"[-S start-line]" CMD_TARGET_PANE_USAGE,
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.target = { 't', CMD_FIND_PANE, 0 },
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.flags = CMD_AFTERHOOK,
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.exec = cmd_capture_pane_exec
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};
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const struct cmd_entry cmd_clear_history_entry = {
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.name = "clear-history",
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.alias = "clearhist",
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.args = { "t:", 0, 0 },
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.usage = CMD_TARGET_PANE_USAGE,
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.target = { 't', CMD_FIND_PANE, 0 },
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.flags = CMD_AFTERHOOK,
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.exec = cmd_capture_pane_exec
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};
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static char *
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cmd_capture_pane_append(char *buf, size_t *len, char *line, size_t linelen)
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{
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buf = xrealloc(buf, *len + linelen + 1);
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memcpy(buf + *len, line, linelen);
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*len += linelen;
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return (buf);
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}
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static char *
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cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
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size_t *len)
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{
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struct evbuffer *pending;
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char *buf, *line, tmp[5];
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size_t linelen;
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u_int i;
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pending = input_pending(wp);
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if (pending == NULL)
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return (xstrdup(""));
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line = EVBUFFER_DATA(pending);
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linelen = EVBUFFER_LENGTH(pending);
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buf = xstrdup("");
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if (args_has(args, 'C')) {
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for (i = 0; i < linelen; i++) {
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if (line[i] >= ' ' && line[i] != '\\') {
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tmp[0] = line[i];
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tmp[1] = '\0';
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} else
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xsnprintf(tmp, sizeof tmp, "\\%03hho", line[i]);
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buf = cmd_capture_pane_append(buf, len, tmp,
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strlen(tmp));
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}
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} else
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buf = cmd_capture_pane_append(buf, len, line, linelen);
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return (buf);
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}
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static char *
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cmd_capture_pane_history(struct args *args, struct cmdq_item *item,
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struct window_pane *wp, size_t *len)
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{
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struct grid *gd;
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const struct grid_line *gl;
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struct grid_cell *gc = NULL;
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int n, with_codes, escape_c0, join_lines;
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u_int i, sx, top, bottom, tmp;
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char *cause, *buf, *line;
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const char *Sflag, *Eflag;
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size_t linelen;
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sx = screen_size_x(&wp->base);
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if (args_has(args, 'a')) {
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gd = wp->saved_grid;
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if (gd == NULL) {
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if (!args_has(args, 'q')) {
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cmdq_error(item, "no alternate screen");
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return (NULL);
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}
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return (xstrdup(""));
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}
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} else
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gd = wp->base.grid;
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Sflag = args_get(args, 'S');
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if (Sflag != NULL && strcmp(Sflag, "-") == 0)
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top = 0;
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else {
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n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
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if (cause != NULL) {
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top = gd->hsize;
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free(cause);
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} else if (n < 0 && (u_int) -n > gd->hsize)
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top = 0;
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else
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top = gd->hsize + n;
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if (top > gd->hsize + gd->sy - 1)
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top = gd->hsize + gd->sy - 1;
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}
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Eflag = args_get(args, 'E');
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if (Eflag != NULL && strcmp(Eflag, "-") == 0)
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bottom = gd->hsize + gd->sy - 1;
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else {
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n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
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if (cause != NULL) {
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bottom = gd->hsize + gd->sy - 1;
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free(cause);
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} else if (n < 0 && (u_int) -n > gd->hsize)
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bottom = 0;
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else
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bottom = gd->hsize + n;
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if (bottom > gd->hsize + gd->sy - 1)
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bottom = gd->hsize + gd->sy - 1;
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}
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if (bottom < top) {
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tmp = bottom;
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bottom = top;
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top = tmp;
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}
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with_codes = args_has(args, 'e');
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escape_c0 = args_has(args, 'C');
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join_lines = args_has(args, 'J');
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buf = NULL;
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for (i = top; i <= bottom; i++) {
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line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
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escape_c0, !join_lines);
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linelen = strlen(line);
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buf = cmd_capture_pane_append(buf, len, line, linelen);
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gl = grid_peek_line(gd, i);
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if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
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buf[(*len)++] = '\n';
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free(line);
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}
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return (buf);
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}
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static enum cmd_retval
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cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
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{
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struct args *args = self->args;
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struct client *c;
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struct window_pane *wp = item->target.wp;
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char *buf, *cause;
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const char *bufname;
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size_t len;
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if (self->entry == &cmd_clear_history_entry) {
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window_pane_reset_mode_all(wp);
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grid_clear_history(wp->base.grid);
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return (CMD_RETURN_NORMAL);
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}
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len = 0;
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if (args_has(args, 'P'))
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buf = cmd_capture_pane_pending(args, wp, &len);
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else
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buf = cmd_capture_pane_history(args, item, wp, &len);
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if (buf == NULL)
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return (CMD_RETURN_ERROR);
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if (args_has(args, 'p')) {
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c = item->client;
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if (c == NULL ||
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(c->session != NULL && !(c->flags & CLIENT_CONTROL))) {
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cmdq_error(item, "can't write to stdout");
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free(buf);
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return (CMD_RETURN_ERROR);
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}
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evbuffer_add(c->stdout_data, buf, len);
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free(buf);
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if (args_has(args, 'P') && len > 0)
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evbuffer_add(c->stdout_data, "\n", 1);
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server_client_push_stdout(c);
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} else {
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bufname = NULL;
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if (args_has(args, 'b'))
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bufname = args_get(args, 'b');
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if (paste_set(buf, len, bufname, &cause) != 0) {
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cmdq_error(item, "%s", cause);
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free(cause);
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free(buf);
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return (CMD_RETURN_ERROR);
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}
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}
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return (CMD_RETURN_NORMAL);
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}
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