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Handle empty pending output (not a failure) and add \n. From George

Browse Source 
Nachman.
This commit is contained in:
Nicholas Marriott 2013-03-25 11:42:19 +00:00
parent 0c969a7dfd
commit 270d90ce1e
1 changed files with 133 additions and 77 deletions
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128
cmd-capture-pane.c
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@ -29,10 +29,16 @@
enum cmd_retval cmd_capture_pane_exec(struct cmd *, struct cmd_q *);
char *cmd_capture_pane_append(char *, size_t *, char *, size_t);
char *cmd_capture_pane_pending(struct args *, struct window_pane *,
size_t *);
char *cmd_capture_pane_history(struct args *, struct cmd_q *,
struct window_pane *, size_t *);
const struct cmd_entry cmd_capture_pane_entry = {
"capture-pane", "capturep",
"ab:CeE:JpqS:t:", 0, 0,
"[-aCeJpq] [-b buffer-index] [-E end-line] [-S start-line]"
"ab:CeE:JpPqS:t:", 0, 0,
"[-aCeJpPq] [-b buffer-index] [-E end-line] [-S start-line]"
CMD_TARGET_PANE_USAGE,
0,
NULL,
@ -40,42 +46,70 @@ const struct cmd_entry cmd_capture_pane_entry = {
cmd_capture_pane_exec
};
enum cmd_retval
cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
char *
cmd_capture_pane_append(char *buf, size_t *len, char *line, size_t linelen)
{
buf = xrealloc(buf, 1, *len + linelen + 1);
memcpy(buf + *len, line, linelen);
*len += linelen;
return (buf);
}
char *
cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
size_t *len)
{
char *buf, *line, tmp[5];
size_t linelen;
u_int i;
if (wp->ictx.since_ground == NULL)
return (xstrdup(""));
line = EVBUFFER_DATA(wp->ictx.since_ground);
linelen = EVBUFFER_LENGTH(wp->ictx.since_ground);
buf = xstrdup("");
if (args_has(args, 'C')) {
for (i = 0; i < linelen; i++) {
if (line[i] >= ' ') {
tmp[0] = line[i];
tmp[1] = '\0';
} else
xsnprintf(tmp, sizeof tmp, "\\%03o", line[i]);
buf = cmd_capture_pane_append(buf, len, tmp,
strlen(tmp));
}
} else
buf = cmd_capture_pane_append(buf, len, line, linelen);
return (buf);
}
char *
cmd_capture_pane_history(struct args *args, struct cmd_q *cmdq,
struct window_pane *wp, size_t *len)
{
struct args *args = self->args;
struct client *c;
struct window_pane *wp;
char *buf, *line, *cause;
struct screen *s;
struct grid *gd;
int buffer, n, with_codes, escape_c0, join_lines;
u_int i, limit, top, bottom, tmp, sx;
size_t len, linelen;
struct grid_cell *gc;
const struct grid_line *gl;
struct grid_cell *gc = NULL;
int n, with_codes, escape_c0, join_lines;
u_int i, sx, top, bottom, tmp;
char *cause, *buf, *line;
size_t linelen;
if (cmd_find_pane(cmdq, args_get(args, 't'), NULL, &wp) == NULL)
return (CMD_RETURN_ERROR);
if (args_has(args, 'a')) {
s = NULL;
gd = wp->saved_grid;
sx = screen_size_x(&wp->base);
if (gd == NULL && !args_has(args, 'q')) {
if (args_has(args, 'a')) {
gd = wp->saved_grid;
if (gd == NULL) {
if (!args_has(args, 'q')) {
cmdq_error(cmdq, "no alternate screen");
return (CMD_RETURN_ERROR);
return (NULL);
}
} else {
s = &wp->base;
sx = screen_size_x(s);
gd = s->grid;
return (xstrdup(""));
}
} else
gd = wp->base.grid;
buf = NULL;
len = 0;
if (gd != NULL) {
n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
if (cause != NULL) {
top = gd->hsize;
@ -108,24 +142,44 @@ cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
escape_c0 = args_has(args, 'C');
join_lines = args_has(args, 'J');
gc = NULL;
buf = NULL;
for (i = top; i <= bottom; i++) {
line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
escape_c0, !join_lines);
linelen = strlen(line);
buf = xrealloc(buf, 1, len + linelen + 1);
memcpy(buf + len, line, linelen);
len += linelen;
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';
buf[(*len)++] = '\n';
free(line);
}
} else
buf = xstrdup("");
return (buf);
}
enum cmd_retval
cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct client *c;
struct window_pane *wp;
char *buf, *cause;
int buffer;
u_int limit;
size_t len;
if (cmd_find_pane(cmdq, args_get(args, 't'), NULL, &wp) == NULL)
return (CMD_RETURN_ERROR);
len = 0;
if (args_has(args, 'P'))
buf = cmd_capture_pane_pending(args, wp, &len);
else
buf = cmd_capture_pane_history(args, cmdq, wp, &len);
if (buf == NULL)
return (CMD_RETURN_ERROR);
if (args_has(args, 'p')) {
c = cmdq->client;
@ -135,6 +189,8 @@ cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
return (CMD_RETURN_ERROR);
}
evbuffer_add(c->stdout_data, buf, len);
if (args_has(args, 'P') && len > 0)
evbuffer_add(c->stdout_data, "\n", 1);
server_push_stdout(c);
} else {
limit = options_get_number(&global_options, "buffer-limit");