Annotation of src/usr.bin/tmux/cmd-capture-pane.c, Revision 1.43
1.43 ! nicm 1: /* $OpenBSD: cmd-capture-pane.c,v 1.42 2017/01/02 22:42:19 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: /*
1.14 nicm 27: * Write the entire contents of a pane to a buffer or stdout.
1.1 nicm 28: */
29:
1.41 nicm 30: static enum cmd_retval cmd_capture_pane_exec(struct cmd *, struct cmdq_item *);
1.1 nicm 31:
1.41 nicm 32: static char *cmd_capture_pane_append(char *, size_t *, char *, size_t);
33: static char *cmd_capture_pane_pending(struct args *, struct window_pane *,
34: size_t *);
35: static char *cmd_capture_pane_history(struct args *, struct cmdq_item *,
36: struct window_pane *, size_t *);
1.23 nicm 37:
1.1 nicm 38: const struct cmd_entry cmd_capture_pane_entry = {
1.37 nicm 39: .name = "capture-pane",
40: .alias = "capturep",
41:
42: .args = { "ab:CeE:JpPqS:t:", 0, 0 },
43: .usage = "[-aCeJpPq] " CMD_BUFFER_USAGE " [-E end-line] "
44: "[-S start-line]" CMD_TARGET_PANE_USAGE,
45:
1.38 nicm 46: .tflag = CMD_PANE,
47:
1.40 nicm 48: .flags = CMD_AFTERHOOK,
1.37 nicm 49: .exec = cmd_capture_pane_exec
1.1 nicm 50: };
51:
1.43 ! nicm 52: const struct cmd_entry cmd_clear_history_entry = {
! 53: .name = "clear-history",
! 54: .alias = "clearhist",
! 55:
! 56: .args = { "t:", 0, 0 },
! 57: .usage = CMD_TARGET_PANE_USAGE,
! 58:
! 59: .tflag = CMD_PANE,
! 60:
! 61: .flags = CMD_AFTERHOOK,
! 62: .exec = cmd_capture_pane_exec
! 63: };
! 64:
1.39 nicm 65: static char *
1.23 nicm 66: cmd_capture_pane_append(char *buf, size_t *len, char *line, size_t linelen)
67: {
1.29 nicm 68: buf = xrealloc(buf, *len + linelen + 1);
1.23 nicm 69: memcpy(buf + *len, line, linelen);
70: *len += linelen;
71: return (buf);
72: }
73:
1.39 nicm 74: static char *
1.23 nicm 75: cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
76: size_t *len)
77: {
1.32 nicm 78: struct evbuffer *pending;
79: char *buf, *line, tmp[5];
80: size_t linelen;
81: u_int i;
1.23 nicm 82:
1.32 nicm 83: pending = input_pending(wp);
84: if (pending == NULL)
1.23 nicm 85: return (xstrdup(""));
86:
1.32 nicm 87: line = EVBUFFER_DATA(pending);
88: linelen = EVBUFFER_LENGTH(pending);
1.23 nicm 89:
1.24 nicm 90: buf = xstrdup("");
1.23 nicm 91: if (args_has(args, 'C')) {
92: for (i = 0; i < linelen; i++) {
1.42 nicm 93: if (line[i] >= ' ' && line[i] != '\\') {
1.23 nicm 94: tmp[0] = line[i];
95: tmp[1] = '\0';
96: } else
1.31 nicm 97: xsnprintf(tmp, sizeof tmp, "\\%03hho", line[i]);
1.23 nicm 98: buf = cmd_capture_pane_append(buf, len, tmp,
99: strlen(tmp));
100: }
101: } else
102: buf = cmd_capture_pane_append(buf, len, line, linelen);
103: return (buf);
104: }
105:
1.39 nicm 106: static char *
1.41 nicm 107: cmd_capture_pane_history(struct args *args, struct cmdq_item *item,
1.23 nicm 108: struct window_pane *wp, size_t *len)
1.1 nicm 109: {
1.7 nicm 110: struct grid *gd;
1.18 nicm 111: const struct grid_line *gl;
1.23 nicm 112: struct grid_cell *gc = NULL;
113: int n, with_codes, escape_c0, join_lines;
114: u_int i, sx, top, bottom, tmp;
115: char *cause, *buf, *line;
1.28 nicm 116: const char *Sflag, *Eflag;
1.23 nicm 117: size_t linelen;
1.14 nicm 118:
1.23 nicm 119: sx = screen_size_x(&wp->base);
1.20 nicm 120: if (args_has(args, 'a')) {
121: gd = wp->saved_grid;
1.23 nicm 122: if (gd == NULL) {
123: if (!args_has(args, 'q')) {
1.41 nicm 124: cmdq_error(item, "no alternate screen");
1.23 nicm 125: return (NULL);
126: }
127: return (xstrdup(""));
1.20 nicm 128: }
1.23 nicm 129: } else
130: gd = wp->base.grid;
131:
1.28 nicm 132: Sflag = args_get(args, 'S');
133: if (Sflag != NULL && strcmp(Sflag, "-") == 0)
1.23 nicm 134: top = 0;
1.28 nicm 135: else {
136: n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
137: if (cause != NULL) {
138: top = gd->hsize;
139: free(cause);
140: } else if (n < 0 && (u_int) -n > gd->hsize)
141: top = 0;
142: else
143: top = gd->hsize + n;
144: if (top > gd->hsize + gd->sy - 1)
145: top = gd->hsize + gd->sy - 1;
146: }
1.23 nicm 147:
1.28 nicm 148: Eflag = args_get(args, 'E');
149: if (Eflag != NULL && strcmp(Eflag, "-") == 0)
1.23 nicm 150: bottom = gd->hsize + gd->sy - 1;
1.28 nicm 151: else {
152: n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
153: if (cause != NULL) {
154: bottom = gd->hsize + gd->sy - 1;
155: free(cause);
156: } else if (n < 0 && (u_int) -n > gd->hsize)
157: bottom = 0;
158: else
159: bottom = gd->hsize + n;
160: if (bottom > gd->hsize + gd->sy - 1)
161: bottom = gd->hsize + gd->sy - 1;
162: }
1.23 nicm 163:
164: if (bottom < top) {
165: tmp = bottom;
166: bottom = top;
167: top = tmp;
1.20 nicm 168: }
1.1 nicm 169:
1.23 nicm 170: with_codes = args_has(args, 'e');
171: escape_c0 = args_has(args, 'C');
172: join_lines = args_has(args, 'J');
173:
1.1 nicm 174: buf = NULL;
1.23 nicm 175: for (i = top; i <= bottom; i++) {
176: line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
177: escape_c0, !join_lines);
178: linelen = strlen(line);
179:
180: buf = cmd_capture_pane_append(buf, len, line, linelen);
181:
182: gl = grid_peek_line(gd, i);
183: if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
184: buf[(*len)++] = '\n';
185:
186: free(line);
187: }
188: return (buf);
189: }
1.1 nicm 190:
1.39 nicm 191: static enum cmd_retval
1.41 nicm 192: cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
1.23 nicm 193: {
194: struct args *args = self->args;
195: struct client *c;
1.41 nicm 196: struct window_pane *wp = item->state.tflag.wp;
1.23 nicm 197: char *buf, *cause;
1.27 nicm 198: const char *bufname;
1.23 nicm 199: size_t len;
1.43 ! nicm 200:
! 201: if (self->entry == &cmd_clear_history_entry) {
! 202: if (wp->mode == &window_copy_mode)
! 203: window_pane_reset_mode(wp);
! 204: grid_clear_history(wp->base.grid);
! 205: return (CMD_RETURN_NORMAL);
! 206: }
1.1 nicm 207:
1.23 nicm 208: len = 0;
209: if (args_has(args, 'P'))
210: buf = cmd_capture_pane_pending(args, wp, &len);
211: else
1.41 nicm 212: buf = cmd_capture_pane_history(args, item, wp, &len);
1.23 nicm 213: if (buf == NULL)
214: return (CMD_RETURN_ERROR);
1.1 nicm 215:
1.14 nicm 216: if (args_has(args, 'p')) {
1.41 nicm 217: c = item->client;
1.19 nicm 218: if (c == NULL ||
219: (c->session != NULL && !(c->flags & CLIENT_CONTROL))) {
1.41 nicm 220: cmdq_error(item, "can't write to stdout");
1.33 nicm 221: free(buf);
1.14 nicm 222: return (CMD_RETURN_ERROR);
223: }
224: evbuffer_add(c->stdout_data, buf, len);
1.34 nicm 225: free(buf);
1.24 nicm 226: if (args_has(args, 'P') && len > 0)
227: evbuffer_add(c->stdout_data, "\n", 1);
1.35 nicm 228: server_client_push_stdout(c);
1.14 nicm 229: } else {
1.27 nicm 230: bufname = NULL;
231: if (args_has(args, 'b'))
232: bufname = args_get(args, 'b');
233:
234: if (paste_set(buf, len, bufname, &cause) != 0) {
1.41 nicm 235: cmdq_error(item, "%s", cause);
1.33 nicm 236: free(cause);
1.14 nicm 237: free(buf);
238: return (CMD_RETURN_ERROR);
239: }
1.1 nicm 240: }
1.6 nicm 241:
1.12 nicm 242: return (CMD_RETURN_NORMAL);
1.1 nicm 243: }
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