$width-in-terminal = $text.chars; ^- very likely wrong. wcswidth computes the cell-width (or column-count) of a Unicode string, which is unrelated to the coun

$width-in-terminal = $text.chars; ^- very likely wrong. wcswidth computes the cell-width (or column-count) of a Unicode string, which is unrelated to the count of graphemes, EGCs or code points. For example, Latin characters are one cell/column wide, while for example many CJK characters occupy two cells/columns, while they are still one EGC. A typical application is printing CJK things to a terminal mask, progress display or similar.