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-rw-r--r--cmd-capture-pane.c245
1 files changed, 245 insertions, 0 deletions
diff --git a/cmd-capture-pane.c b/cmd-capture-pane.c
new file mode 100644
index 0000000..964f831
--- /dev/null
+++ b/cmd-capture-pane.c
@@ -0,0 +1,245 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2009 Jonathan Alvarado <radobobo@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Write the entire contents of a pane to a buffer or stdout.
+ */
+
+static enum cmd_retval cmd_capture_pane_exec(struct cmd *, struct cmdq_item *);
+
+static char *cmd_capture_pane_append(char *, size_t *, char *, size_t);
+static char *cmd_capture_pane_pending(struct args *, struct window_pane *,
+ size_t *);
+static char *cmd_capture_pane_history(struct args *, struct cmdq_item *,
+ struct window_pane *, size_t *);
+
+const struct cmd_entry cmd_capture_pane_entry = {
+ .name = "capture-pane",
+ .alias = "capturep",
+
+ .args = { "ab:CeE:JNpPqS:t:", 0, 0, NULL },
+ .usage = "[-aCeJNpPq] " CMD_BUFFER_USAGE " [-E end-line] "
+ "[-S start-line] " CMD_TARGET_PANE_USAGE,
+
+ .target = { 't', CMD_FIND_PANE, 0 },
+
+ .flags = CMD_AFTERHOOK,
+ .exec = cmd_capture_pane_exec
+};
+
+const struct cmd_entry cmd_clear_history_entry = {
+ .name = "clear-history",
+ .alias = "clearhist",
+
+ .args = { "t:", 0, 0, NULL },
+ .usage = CMD_TARGET_PANE_USAGE,
+
+ .target = { 't', CMD_FIND_PANE, 0 },
+
+ .flags = CMD_AFTERHOOK,
+ .exec = cmd_capture_pane_exec
+};
+
+static char *
+cmd_capture_pane_append(char *buf, size_t *len, char *line, size_t linelen)
+{
+ buf = xrealloc(buf, *len + linelen + 1);
+ memcpy(buf + *len, line, linelen);
+ *len += linelen;
+ return (buf);
+}
+
+static char *
+cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
+ size_t *len)
+{
+ struct evbuffer *pending;
+ char *buf, *line, tmp[5];
+ size_t linelen;
+ u_int i;
+
+ pending = input_pending(wp->ictx);
+ if (pending == NULL)
+ return (xstrdup(""));
+
+ line = EVBUFFER_DATA(pending);
+ linelen = EVBUFFER_LENGTH(pending);
+
+ buf = xstrdup("");
+ if (args_has(args, 'C')) {
+ for (i = 0; i < linelen; i++) {
+ if (line[i] >= ' ' && line[i] != '\\') {
+ tmp[0] = line[i];
+ tmp[1] = '\0';
+ } else
+ xsnprintf(tmp, sizeof tmp, "\\%03hho", line[i]);
+ buf = cmd_capture_pane_append(buf, len, tmp,
+ strlen(tmp));
+ }
+ } else
+ buf = cmd_capture_pane_append(buf, len, line, linelen);
+ return (buf);
+}
+
+static char *
+cmd_capture_pane_history(struct args *args, struct cmdq_item *item,
+ struct window_pane *wp, size_t *len)
+{
+ struct grid *gd;
+ const struct grid_line *gl;
+ struct grid_cell *gc = NULL;
+ int n, with_codes, escape_c0, join_lines, no_trim;
+ u_int i, sx, top, bottom, tmp;
+ char *cause, *buf, *line;
+ const char *Sflag, *Eflag;
+ size_t linelen;
+
+ sx = screen_size_x(&wp->base);
+ if (args_has(args, 'a')) {
+ gd = wp->base.saved_grid;
+ if (gd == NULL) {
+ if (!args_has(args, 'q')) {
+ cmdq_error(item, "no alternate screen");
+ return (NULL);
+ }
+ return (xstrdup(""));
+ }
+ } else
+ gd = wp->base.grid;
+
+ Sflag = args_get(args, 'S');
+ if (Sflag != NULL && strcmp(Sflag, "-") == 0)
+ top = 0;
+ else {
+ n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
+ if (cause != NULL) {
+ top = gd->hsize;
+ free(cause);
+ } else if (n < 0 && (u_int) -n > gd->hsize)
+ top = 0;
+ else
+ top = gd->hsize + n;
+ if (top > gd->hsize + gd->sy - 1)
+ top = gd->hsize + gd->sy - 1;
+ }
+
+ Eflag = args_get(args, 'E');
+ if (Eflag != NULL && strcmp(Eflag, "-") == 0)
+ bottom = gd->hsize + gd->sy - 1;
+ else {
+ n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
+ if (cause != NULL) {
+ bottom = gd->hsize + gd->sy - 1;
+ free(cause);
+ } else if (n < 0 && (u_int) -n > gd->hsize)
+ bottom = 0;
+ else
+ bottom = gd->hsize + n;
+ if (bottom > gd->hsize + gd->sy - 1)
+ bottom = gd->hsize + gd->sy - 1;
+ }
+
+ if (bottom < top) {
+ tmp = bottom;
+ bottom = top;
+ top = tmp;
+ }
+
+ with_codes = args_has(args, 'e');
+ escape_c0 = args_has(args, 'C');
+ join_lines = args_has(args, 'J');
+ no_trim = args_has(args, 'N');
+
+ buf = NULL;
+ for (i = top; i <= bottom; i++) {
+ line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
+ escape_c0, !join_lines && !no_trim);
+ linelen = strlen(line);
+
+ buf = cmd_capture_pane_append(buf, len, line, linelen);
+
+ gl = grid_peek_line(gd, i);
+ if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
+ buf[(*len)++] = '\n';
+
+ free(line);
+ }
+ return (buf);
+}
+
+static enum cmd_retval
+cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
+{
+ struct args *args = cmd_get_args(self);
+ struct client *c = cmdq_get_client(item);
+ struct window_pane *wp = cmdq_get_target(item)->wp;
+ char *buf, *cause;
+ const char *bufname;
+ size_t len;
+
+ if (cmd_get_entry(self) == &cmd_clear_history_entry) {
+ window_pane_reset_mode_all(wp);
+ grid_clear_history(wp->base.grid);
+ return (CMD_RETURN_NORMAL);
+ }
+
+ len = 0;
+ if (args_has(args, 'P'))
+ buf = cmd_capture_pane_pending(args, wp, &len);
+ else
+ buf = cmd_capture_pane_history(args, item, wp, &len);
+ if (buf == NULL)
+ return (CMD_RETURN_ERROR);
+
+ if (args_has(args, 'p')) {
+ if (len > 0 && buf[len - 1] == '\n')
+ len--;
+ if (c->flags & CLIENT_CONTROL)
+ control_write(c, "%.*s", (int)len, buf);
+ else {
+ if (!file_can_print(c)) {
+ cmdq_error(item, "can't write to client");
+ free(buf);
+ return (CMD_RETURN_ERROR);
+ }
+ file_print_buffer(c, buf, len);
+ file_print(c, "\n");
+ free(buf);
+ }
+ } else {
+ bufname = NULL;
+ if (args_has(args, 'b'))
+ bufname = args_get(args, 'b');
+
+ if (paste_set(buf, len, bufname, &cause) != 0) {
+ cmdq_error(item, "%s", cause);
+ free(cause);
+ free(buf);
+ return (CMD_RETURN_ERROR);
+ }
+ }
+
+ return (CMD_RETURN_NORMAL);
+}
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