General Category - Close Punctuation
Close Punctuation is a classification for characters that serve as the terminating counterpart to an opening punctuation mark, such as a closing parenthesis, bracket, or brace. These marks are used to enclose or group text, mathematical expressions, or quoted material, and they always appear after the content they delimit, often paired with an opening symbol. In text processing and rendering, close punctuation characters are treated as having specific spacing and line breaking behaviors, typically preventing a line from starting with them when used in the middle of a paragraph. They are distinct from other punctuation types because they explicitly signal the end of a syntactic or structural unit, and they are essential for proper parsing, nesting, and visual clarity in written language and code.