6 macro_rules! check {  macro
26     check!('a');  in alphanumeric()
27     check!('b');  in alphanumeric()
28     check!('y');  in alphanumeric()
29     check!('z');  in alphanumeric()
30     check!('A');  in alphanumeric()
31     check!('B');  in alphanumeric()
32     check!('Y');  in alphanumeric()
33     check!('Z');  in alphanumeric()
35     check!('0');  in alphanumeric()
36     check!('1');  in alphanumeric()
37     check!('8');  in alphanumeric()
38     check!('9');  in alphanumeric()
43     check!(' ');  in special_chars()
44     check!('!');  in special_chars()
45     check!('"');  in special_chars()
46     check!('#');  in special_chars()
47     check!('$');  in special_chars()
48     check!('%');  in special_chars()
49     check!('&');  in special_chars()
50     check!('(');  in special_chars()
51     check!(')');  in special_chars()
52     check!('*');  in special_chars()
53     check!('+');  in special_chars()
54     check!(',');  in special_chars()
55     check!('-');  in special_chars()
56     check!('.');  in special_chars()
57     check!('/');  in special_chars()
58     check!(':');  in special_chars()
59     check!(';');  in special_chars()
60     check!('<');  in special_chars()
61     check!('=');  in special_chars()
62     check!('>');  in special_chars()
63     check!('?');  in special_chars()
64     check!('@');  in special_chars()
65     check!('[');  in special_chars()
66     check!(']');  in special_chars()
67     check!('^');  in special_chars()
68     check!('_');  in special_chars()
69     check!('`');  in special_chars()
70     check!('{');  in special_chars()
71     check!('|');  in special_chars()
72     check!('}');  in special_chars()
73     check!('~');  in special_chars()
78     check!('న');  in unicode()
79     check!('犬');  in unicode()
80     check!('��');  in unicode()
85     check!('\'');  in quote_escapes()
86     check!('\"');  in quote_escapes()
91     check!('\n');  in ascii_escapes()
92     check!('\r');  in ascii_escapes()
93     check!('\t');  in ascii_escapes()
94     check!('\\');  in ascii_escapes()
95     check!('\0');  in ascii_escapes()
97     check!('\x00');  in ascii_escapes()
98     check!('\x01');  in ascii_escapes()
99     check!('\x0c');  in ascii_escapes()
100     check!('\x0D');  in ascii_escapes()
101     check!('\x13');  in ascii_escapes()
102     check!('\x30');  in ascii_escapes()
103     check!('\x30');  in ascii_escapes()
104     check!('\x4B');  in ascii_escapes()
105     check!('\x6b');  in ascii_escapes()
106     check!('\x7F');  in ascii_escapes()
107     check!('\x7f');  in ascii_escapes()
112     check!('\u{0}');  in unicode_escapes()
113     check!('\u{00}');  in unicode_escapes()
114     check!('\u{b}');  in unicode_escapes()
115     check!('\u{B}');  in unicode_escapes()
116     check!('\u{7e}');  in unicode_escapes()
117     check!('\u{E4}');  in unicode_escapes()
118     check!('\u{e4}');  in unicode_escapes()
119     check!('\u{fc}');  in unicode_escapes()
120     check!('\u{Fc}');  in unicode_escapes()
121     check!('\u{fC}');  in unicode_escapes()
122     check!('\u{FC}');  in unicode_escapes()
123     check!('\u{b10}');  in unicode_escapes()
124     check!('\u{B10}');  in unicode_escapes()
125     check!('\u{0b10}');  in unicode_escapes()
126     check!('\u{2764}');  in unicode_escapes()
127     check!('\u{1f602}');  in unicode_escapes()
128     check!('\u{1F602}');  in unicode_escapes()
130     check!('\u{0}');  in unicode_escapes()
131     check!('\u{0__}');  in unicode_escapes()
132     check!('\u{3_b}');  in unicode_escapes()
133     check!('\u{1_F_6_0_2}');  in unicode_escapes()
134     check!('\u{1_F6_02_____}');  in unicode_escapes()