Annotation of src/usr.bin/tmux/cmd-capture-pane.c, Revision 1.26
1.26 ! nicm 1: /* $OpenBSD: cmd-capture-pane.c,v 1.25 2013/10/10 12:00:18 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:
1.19 nicm 30: enum cmd_retval cmd_capture_pane_exec(struct cmd *, struct cmd_q *);
1.1 nicm 31:
1.23 nicm 32: char *cmd_capture_pane_append(char *, size_t *, char *, size_t);
33: char *cmd_capture_pane_pending(struct args *, struct window_pane *,
34: size_t *);
35: char *cmd_capture_pane_history(struct args *, struct cmd_q *,
36: struct window_pane *, size_t *);
37:
1.1 nicm 38: const struct cmd_entry cmd_capture_pane_entry = {
39: "capture-pane", "capturep",
1.23 nicm 40: "ab:CeE:JpPqS:t:", 0, 0,
41: "[-aCeJpPq] [-b buffer-index] [-E end-line] [-S start-line]"
1.13 nicm 42: CMD_TARGET_PANE_USAGE,
1.6 nicm 43: 0,
44: NULL,
45: cmd_capture_pane_exec
1.1 nicm 46: };
47:
1.23 nicm 48: char *
49: cmd_capture_pane_append(char *buf, size_t *len, char *line, size_t linelen)
50: {
51: buf = xrealloc(buf, 1, *len + linelen + 1);
52: memcpy(buf + *len, line, linelen);
53: *len += linelen;
54: return (buf);
55: }
56:
57: char *
58: cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
59: size_t *len)
60: {
61: char *buf, *line, tmp[5];
62: size_t linelen;
63: u_int i;
64:
65: if (wp->ictx.since_ground == NULL)
66: return (xstrdup(""));
67:
68: line = EVBUFFER_DATA(wp->ictx.since_ground);
69: linelen = EVBUFFER_LENGTH(wp->ictx.since_ground);
70:
1.24 nicm 71: buf = xstrdup("");
1.23 nicm 72: if (args_has(args, 'C')) {
73: for (i = 0; i < linelen; i++) {
74: if (line[i] >= ' ') {
75: tmp[0] = line[i];
76: tmp[1] = '\0';
77: } else
78: xsnprintf(tmp, sizeof tmp, "\\%03o", line[i]);
79: buf = cmd_capture_pane_append(buf, len, tmp,
80: strlen(tmp));
81: }
82: } else
83: buf = cmd_capture_pane_append(buf, len, line, linelen);
84: return (buf);
85: }
86:
87: char *
88: cmd_capture_pane_history(struct args *args, struct cmd_q *cmdq,
89: struct window_pane *wp, size_t *len)
1.1 nicm 90: {
1.7 nicm 91: struct grid *gd;
1.18 nicm 92: const struct grid_line *gl;
1.23 nicm 93: struct grid_cell *gc = NULL;
94: int n, with_codes, escape_c0, join_lines;
95: u_int i, sx, top, bottom, tmp;
96: char *cause, *buf, *line;
97: size_t linelen;
1.14 nicm 98:
1.23 nicm 99: sx = screen_size_x(&wp->base);
1.20 nicm 100: if (args_has(args, 'a')) {
101: gd = wp->saved_grid;
1.23 nicm 102: if (gd == NULL) {
103: if (!args_has(args, 'q')) {
104: cmdq_error(cmdq, "no alternate screen");
105: return (NULL);
106: }
107: return (xstrdup(""));
1.20 nicm 108: }
1.23 nicm 109: } else
110: gd = wp->base.grid;
111:
112: n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
113: if (cause != NULL) {
114: top = gd->hsize;
115: free(cause);
116: } else if (n < 0 && (u_int) -n > gd->hsize)
117: top = 0;
118: else
119: top = gd->hsize + n;
120: if (top > gd->hsize + gd->sy - 1)
121: top = gd->hsize + gd->sy - 1;
122:
123: n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
124: if (cause != NULL) {
125: bottom = gd->hsize + gd->sy - 1;
126: free(cause);
127: } else if (n < 0 && (u_int) -n > gd->hsize)
128: bottom = 0;
129: else
130: bottom = gd->hsize + n;
131: if (bottom > gd->hsize + gd->sy - 1)
132: bottom = gd->hsize + gd->sy - 1;
133:
134: if (bottom < top) {
135: tmp = bottom;
136: bottom = top;
137: top = tmp;
1.20 nicm 138: }
1.1 nicm 139:
1.23 nicm 140: with_codes = args_has(args, 'e');
141: escape_c0 = args_has(args, 'C');
142: join_lines = args_has(args, 'J');
143:
1.1 nicm 144: buf = NULL;
1.23 nicm 145: for (i = top; i <= bottom; i++) {
146: line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
147: escape_c0, !join_lines);
148: linelen = strlen(line);
149:
150: buf = cmd_capture_pane_append(buf, len, line, linelen);
151:
152: gl = grid_peek_line(gd, i);
153: if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
154: buf[(*len)++] = '\n';
155:
156: free(line);
157: }
158: return (buf);
159: }
1.1 nicm 160:
1.23 nicm 161: enum cmd_retval
162: cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
163: {
164: struct args *args = self->args;
165: struct client *c;
166: struct window_pane *wp;
167: char *buf, *cause;
168: int buffer;
169: u_int limit;
170: size_t len;
1.7 nicm 171:
1.23 nicm 172: if (cmd_find_pane(cmdq, args_get(args, 't'), NULL, &wp) == NULL)
173: return (CMD_RETURN_ERROR);
1.1 nicm 174:
1.23 nicm 175: len = 0;
176: if (args_has(args, 'P'))
177: buf = cmd_capture_pane_pending(args, wp, &len);
178: else
179: buf = cmd_capture_pane_history(args, cmdq, wp, &len);
180: if (buf == NULL)
181: return (CMD_RETURN_ERROR);
1.1 nicm 182:
1.14 nicm 183: if (args_has(args, 'p')) {
1.19 nicm 184: c = cmdq->client;
185: if (c == NULL ||
186: (c->session != NULL && !(c->flags & CLIENT_CONTROL))) {
187: cmdq_error(cmdq, "can't write to stdout");
1.14 nicm 188: return (CMD_RETURN_ERROR);
189: }
190: evbuffer_add(c->stdout_data, buf, len);
1.24 nicm 191: if (args_has(args, 'P') && len > 0)
192: evbuffer_add(c->stdout_data, "\n", 1);
1.14 nicm 193: server_push_stdout(c);
194: } else {
195: limit = options_get_number(&global_options, "buffer-limit");
196: if (!args_has(args, 'b')) {
1.26 ! nicm 197: paste_add(buf, len, limit);
1.14 nicm 198: return (CMD_RETURN_NORMAL);
199: }
200:
201: buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
202: if (cause != NULL) {
1.19 nicm 203: cmdq_error(cmdq, "buffer %s", cause);
1.14 nicm 204: free(buf);
205: free(cause);
206: return (CMD_RETURN_ERROR);
207: }
208:
1.26 ! nicm 209: if (paste_replace(buffer, buf, len) != 0) {
1.19 nicm 210: cmdq_error(cmdq, "no buffer %d", buffer);
1.14 nicm 211: free(buf);
212: return (CMD_RETURN_ERROR);
213: }
1.1 nicm 214: }
1.6 nicm 215:
1.12 nicm 216: return (CMD_RETURN_NORMAL);
1.1 nicm 217: }
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