U+009C "ST" STRING TERMINATOR Unicode Character

U+009C "ST" STRING TERMINATOR is a control character originally defined in the C0 and C1 control code standards, specifically within the C1 set, and it is intended to mark the end of a string of data in contexts like plain text or communication protocols. It belongs to a class of format effectors whose purpose is to structure or delimit textual information, though in modern usage it is rarely encountered in typical text processing due to limited adoption in operating systems and programming languages. Despite its theoretical function, this character often appears as a placeholder or legacy artifact rather than an actively used control code.