VHDL There is a record constructor syntax in VHDL using attribute invocation syntax: RECORD_TYPE'(field1expr, ..., fieldNexpr). This means that if your record

VHDL There is a record constructor syntax in VHDL using attribute invocation syntax: RECORD_TYPE'(field1expr, ..., fieldNexpr). This means that if your record has a first field a subtype of a character type, you can get record construction expression like this one: REC'('0',1,"10101"). Good luck distinguishing between '(' as a character literal and "'", "(" and "'0'" at lexical level. Haskell. Haskell has context-free syntax for bracketed ("{-" ... "-}") comments. Lexer has to keep bracketed comment syntax balanced (for every "{-" there should be accompanying "-}" somewhere).