Prepended Concatenation Mark - No
No is the value indicating that a character does not function as a prepended concatenation mark, meaning it will not join with a following number to form a single numeric symbol, such as in Arabic-Indic currency signs. For most code points, this is the default and only relevant status, since the special joining behavior applies only to a tiny set of characters like the riyal sign or some ancient script signs. When “No” is assigned, the character behaves as a regular standalone grapheme, with no effect on adjacent digits or punctuation, and it does not trigger any special shaping or reordering in text rendering. This value is essential for database lookups or text processing that must distinguish between those rare joining marks and the vast majority of ordinary characters.