Annotation of src/usr.bin/tmux/cmd-capture-pane.c, Revision 1.28
1.28 ! nicm 1: /* $OpenBSD: cmd-capture-pane.c,v 1.27 2014/05/13 07:34:35 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,
1.27 nicm 41: "[-aCeJpPq] " CMD_BUFFER_USAGE " [-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;
1.28 ! nicm 97: const char *Sflag, *Eflag;
1.23 nicm 98: size_t linelen;
1.14 nicm 99:
1.23 nicm 100: sx = screen_size_x(&wp->base);
1.20 nicm 101: if (args_has(args, 'a')) {
102: gd = wp->saved_grid;
1.23 nicm 103: if (gd == NULL) {
104: if (!args_has(args, 'q')) {
105: cmdq_error(cmdq, "no alternate screen");
106: return (NULL);
107: }
108: return (xstrdup(""));
1.20 nicm 109: }
1.23 nicm 110: } else
111: gd = wp->base.grid;
112:
1.28 ! nicm 113: Sflag = args_get(args, 'S');
! 114: if (Sflag != NULL && strcmp(Sflag, "-") == 0)
1.23 nicm 115: top = 0;
1.28 ! nicm 116: else {
! 117: n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
! 118: if (cause != NULL) {
! 119: top = gd->hsize;
! 120: free(cause);
! 121: } else if (n < 0 && (u_int) -n > gd->hsize)
! 122: top = 0;
! 123: else
! 124: top = gd->hsize + n;
! 125: if (top > gd->hsize + gd->sy - 1)
! 126: top = gd->hsize + gd->sy - 1;
! 127: }
1.23 nicm 128:
1.28 ! nicm 129: Eflag = args_get(args, 'E');
! 130: if (Eflag != NULL && strcmp(Eflag, "-") == 0)
1.23 nicm 131: bottom = gd->hsize + gd->sy - 1;
1.28 ! nicm 132: else {
! 133: n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
! 134: if (cause != NULL) {
! 135: bottom = gd->hsize + gd->sy - 1;
! 136: free(cause);
! 137: } else if (n < 0 && (u_int) -n > gd->hsize)
! 138: bottom = 0;
! 139: else
! 140: bottom = gd->hsize + n;
! 141: if (bottom > gd->hsize + gd->sy - 1)
! 142: bottom = gd->hsize + gd->sy - 1;
! 143: }
1.23 nicm 144:
145: if (bottom < top) {
146: tmp = bottom;
147: bottom = top;
148: top = tmp;
1.20 nicm 149: }
1.1 nicm 150:
1.23 nicm 151: with_codes = args_has(args, 'e');
152: escape_c0 = args_has(args, 'C');
153: join_lines = args_has(args, 'J');
154:
1.1 nicm 155: buf = NULL;
1.23 nicm 156: for (i = top; i <= bottom; i++) {
157: line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
158: escape_c0, !join_lines);
159: linelen = strlen(line);
160:
161: buf = cmd_capture_pane_append(buf, len, line, linelen);
162:
163: gl = grid_peek_line(gd, i);
164: if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
165: buf[(*len)++] = '\n';
166:
167: free(line);
168: }
169: return (buf);
170: }
1.1 nicm 171:
1.23 nicm 172: enum cmd_retval
173: cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
174: {
175: struct args *args = self->args;
176: struct client *c;
177: struct window_pane *wp;
178: char *buf, *cause;
1.27 nicm 179: const char *bufname;
1.23 nicm 180: size_t len;
1.7 nicm 181:
1.23 nicm 182: if (cmd_find_pane(cmdq, args_get(args, 't'), NULL, &wp) == NULL)
183: return (CMD_RETURN_ERROR);
1.1 nicm 184:
1.23 nicm 185: len = 0;
186: if (args_has(args, 'P'))
187: buf = cmd_capture_pane_pending(args, wp, &len);
188: else
189: buf = cmd_capture_pane_history(args, cmdq, wp, &len);
190: if (buf == NULL)
191: return (CMD_RETURN_ERROR);
1.1 nicm 192:
1.14 nicm 193: if (args_has(args, 'p')) {
1.19 nicm 194: c = cmdq->client;
195: if (c == NULL ||
196: (c->session != NULL && !(c->flags & CLIENT_CONTROL))) {
197: cmdq_error(cmdq, "can't write to stdout");
1.14 nicm 198: return (CMD_RETURN_ERROR);
199: }
200: evbuffer_add(c->stdout_data, buf, len);
1.24 nicm 201: if (args_has(args, 'P') && len > 0)
202: evbuffer_add(c->stdout_data, "\n", 1);
1.14 nicm 203: server_push_stdout(c);
204: } else {
205:
1.27 nicm 206: bufname = NULL;
207: if (args_has(args, 'b'))
208: bufname = args_get(args, 'b');
209:
210: if (paste_set(buf, len, bufname, &cause) != 0) {
211: cmdq_error(cmdq, "%s", cause);
1.14 nicm 212: free(buf);
213: free(cause);
214: return (CMD_RETURN_ERROR);
215: }
1.1 nicm 216: }
1.6 nicm 217:
1.12 nicm 218: return (CMD_RETURN_NORMAL);
1.1 nicm 219: }
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