Generalized raw string literals

Terminal symbols in the grammar: GENERALIZED_STR_LIT, GENERALIZED_TRIPLESTR_LIT.

The construct identifier”string literal” (without whitespace between the identifier and the opening quotation mark) is a generalized raw string literal. It is a shortcut for the construct identifier(r”string literal”), so it denotes a routine call with a raw string literal as its only argument. Generalized raw string literals are especially convenient for embedding mini languages directly into Nim (for example regular expressions).

The construct identifier”””string literal””” exists too. It is a shortcut for identifier(“””string literal”””).