Lexical and syntactic conventions ********************************* As `m4' reads its input, it separates it into "tokens". A token is either a name, a quoted string, or any single character, that is not a part of either a name or a string. Input to `m4' can also contain comments. * Menu: * Names Macro names. * Quoted strings Quoting input to m4. * Other tokens Other kinds of input tokens. * Comments Comments in m4 input.