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Add a function to convert a screen to a string, from Michael Grant.

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This commit is contained in:
nicm
2026-01-20 16:32:05 +00:00
parent 9c0aeaff40
commit ab1f2ef71c
2 changed files with 72 additions and 0 deletions
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71
screen.c
View File

@@ -744,3 +744,74 @@ screen_mode_to_string(int mode)
tmp[strlen(tmp) - 1] = '\0';
return (tmp);
}
const char *
screen_print(struct screen *s)
{
static char *buf;
static size_t len = 16384;
const char *acs;
u_int x, y;
int n;
size_t last = 0;
struct utf8_data ud;
struct grid_line *gl;
struct grid_cell_entry *gce;
if (buf == NULL)
buf = xmalloc(len);
for (y = 0; y < screen_hsize(s) + s->grid->sy; y++) {
n = snprintf(buf + last, len - last, "%.4d \"", y);
if (n <= 0 || (u_int)n >= len - last)
goto out;
last += n;
gl = &s->grid->linedata[y];
for (x = 0; x < gl->cellused; x++) {
gce = &gl->celldata[x];
if (gce->flags & GRID_FLAG_PADDING)
continue;
if (~gce->flags & GRID_FLAG_EXTENDED) {
if (last + 2 >= len)
goto out;
buf[last++] = gce->data.data;
} else if (gce->flags & GRID_FLAG_TAB) {
if (last + 2 >= len)
goto out;
buf[last++] = '\t';
} else if (gce->flags & GRID_ATTR_CHARSET) {
acs = tty_acs_get(NULL, gce->data.data);
if (acs != NULL)
n = strlen(acs);
else {
acs = &gce->data.data;
n = 1;
}
if (last + n + 1 >= len)
goto out;
memcpy(buf + last, acs, n);
last += n;
} else {
utf8_to_data(gl->extddata[gce->offset].data,
&ud);
if (ud.size > 0) {
if (last + ud.size + 1 >= len)
goto out;
memcpy(buf + last, ud.data, ud.size);
last += ud.size;
}
}
}
if (last + 3 >= len)
goto out;
buf[last++] = '"';
buf[last++] = '\n';
}
out:
buf[last] = '\0';
return (buf);
}

1
tmux.h
View File

@@ -3176,6 +3176,7 @@ void screen_select_cell(struct screen *, struct grid_cell *,
void screen_alternate_on(struct screen *, struct grid_cell *, int);
void screen_alternate_off(struct screen *, struct grid_cell *, int);
const char *screen_mode_to_string(int);
const char *screen_print(struct screen *);
/* window.c */
extern struct windows windows;