Undoes the last step. Returns whether anything was undone and the offset where the cursor belongs.
buffer: Text_Buffer;
defer free_buffer(*buffer);
set_text(*buffer, "hello");
erase(*buffer, 0, 5);
ok, cursor := undo(*buffer);
assert(ok && cursor == 5);
assert(buffer_to_string(*buffer, temp) == "hello");undo :: (buffer: *Text_Buffer) -> (ok: bool, cursor: int)Parameters
- buffer: *Text_Buffer
Returns
- ok: bool
- cursor: int