%% based on letter_digit_token name_token: name_token('a', letter_digit_token([ small_letter_char(a) ])) <=> "a". name_token: name_token('ab', letter_digit_token([ small_letter_char(a), alphanumeric_char( alpha_char( letter_char( small_letter_char(b) )))])) <=> "ab". name_token: "abc". name_token: "a_". name_token: "a0". name_token! "Abc". % beginning with capital letter name_token! "0ab". % beginning with number %% based on graphic_token name_token: name_token('<=>', graphic_token([ graphic_token_char(graphic_char('<')), graphic_token_char(graphic_char('=')), graphic_token_char(graphic_char('>')) ])) <=> "<=>". %% based on quoted_token name_token: name_token('\'a\'', quoted_token([ single_quote_char('\''), single_quoted_item( single_quoted_character( non_quote_char( alphanumeric_char( alpha_char( letter_char(small_letter_char(a))))))), single_quote_char('\'') ])) <=> "'a'". %% based on semicolon_token name_token: name_token(';', semicolon_token( semicolon_char(';') )) <=> ";". %% based on cut_token name_token: name_token('!', cut_token(cut_char(!))) <=> "!".