1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
//! Character Tables
use unicode_bidi::{bidi_class, BidiClass};

/// B.1 Commonly mapped to nothing
pub fn commonly_mapped_to_nothing(c: char) -> bool {
    match c {
        '\u{00AD}' | '\u{034F}' | '\u{1806}' | '\u{180B}' | '\u{180C}' | '\u{180D}' |
        '\u{200B}' | '\u{200C}' | '\u{200D}' | '\u{2060}' | '\u{FE00}' | '\u{FE01}' |
        '\u{FE02}' | '\u{FE03}' | '\u{FE04}' | '\u{FE05}' | '\u{FE06}' | '\u{FE07}' |
        '\u{FE08}' | '\u{FE09}' | '\u{FE0A}' | '\u{FE0B}' | '\u{FE0C}' | '\u{FE0D}' |
        '\u{FE0E}' | '\u{FE0F}' | '\u{FEFF}' => true,
        _ => false,
    }
}

/// C.1.2 Non-ASCII space characters
pub fn non_ascii_space_character(c: char) -> bool {
    match c {
        '\u{00A0}' | '\u{1680}' | '\u{2000}' | '\u{2001}' | '\u{2002}' | '\u{2003}' |
        '\u{2004}' | '\u{2005}' | '\u{2006}' | '\u{2007}' | '\u{2008}' | '\u{2009}' |
        '\u{200A}' | '\u{200B}' | '\u{202F}' | '\u{205F}' | '\u{3000}' => true,
        _ => false,
    }
}

/// C.2.1 ASCII control characters
pub fn ascii_control_character(c: char) -> bool {
    match c {
        '\u{0000}'...'\u{001F}' |
        '\u{007F}' => true,
        _ => false,
    }
}

/// C.2.2 Non-ASCII control characters
pub fn non_ascii_control_character(c: char) -> bool {
    match c {
        '\u{0080}'...'\u{009F}' |
        '\u{06DD}' |
        '\u{070F}' |
        '\u{180E}' |
        '\u{200C}' |
        '\u{200D}' |
        '\u{2028}' |
        '\u{2029}' |
        '\u{2060}' |
        '\u{2061}' |
        '\u{2062}' |
        '\u{2063}' |
        '\u{206A}'...'\u{206F}' |
        '\u{FEFF}' |
        '\u{FFF9}'...'\u{FFFC}' |
        '\u{1D173}'...'\u{1D17A}' => true,
        _ => false,
    }
}

/// C.3 Private use
pub fn private_use(c: char) -> bool {
    match c {
        '\u{E000}'...'\u{F8FF}' |
        '\u{F0000}'...'\u{FFFFD}' |
        '\u{100000}'...'\u{10FFFD}' => true,
        _ => false,
    }
}

/// C.4 Non-character code points
pub fn non_character_code_point(c: char) -> bool {
    match c {
        '\u{FDD0}'...'\u{FDEF}' |
        '\u{FFFE}'...'\u{FFFF}' |
        '\u{1FFFE}'...'\u{1FFFF}' |
        '\u{2FFFE}'...'\u{2FFFF}' |
        '\u{3FFFE}'...'\u{3FFFF}' |
        '\u{4FFFE}'...'\u{4FFFF}' |
        '\u{5FFFE}'...'\u{5FFFF}' |
        '\u{6FFFE}'...'\u{6FFFF}' |
        '\u{7FFFE}'...'\u{7FFFF}' |
        '\u{8FFFE}'...'\u{8FFFF}' |
        '\u{9FFFE}'...'\u{9FFFF}' |
        '\u{AFFFE}'...'\u{AFFFF}' |
        '\u{BFFFE}'...'\u{BFFFF}' |
        '\u{CFFFE}'...'\u{CFFFF}' |
        '\u{DFFFE}'...'\u{DFFFF}' |
        '\u{EFFFE}'...'\u{EFFFF}' |
        '\u{FFFFE}'...'\u{FFFFF}' |
        '\u{10FFFE}'...'\u{10FFFF}' => true,
        _ => false,
    }
}

/// C.5 Surrogate codes
pub fn surrogate_code(c: char) -> bool {
    match c {
        // forbidden by rust
        /*'\u{D800}'...'\u{DFFF}' => true,*/
        _ => false,
    }
}

/// C.6 Inappropriate for plain text
pub fn inappropriate_for_plain_text(c: char) -> bool {
    match c {
        '\u{FFF9}' | '\u{FFFA}' | '\u{FFFB}' | '\u{FFFC}' | '\u{FFFD}' => true,
        _ => false,
    }
}

/// C.7 Inappropriate for canonical representation
pub fn inappropriate_for_canonical_representation(c: char) -> bool {
    match c {
        '\u{2FF0}'...'\u{2FFB}' => true,
        _ => false,
    }
}

/// C.8 Change display properties or are deprecated
pub fn change_display_properties_or_deprecated(c: char) -> bool {
    match c {
        '\u{0340}' | '\u{0341}' | '\u{200E}' | '\u{200F}' | '\u{202A}' | '\u{202B}' |
        '\u{202C}' | '\u{202D}' | '\u{202E}' | '\u{206A}' | '\u{206B}' | '\u{206C}' |
        '\u{206D}' | '\u{206E}' | '\u{206F}' => true,
        _ => false,
    }
}

/// C.9 Tagging characters
pub fn tagging_character(c: char) -> bool {
    match c {
        '\u{E0001}' |
        '\u{E0020}'...'\u{E007F}' => true,
        _ => false,
    }
}

/// D.1 Characters with bidirectional property "R" or "AL"
pub fn bidi_r_or_al(c: char) -> bool {
    match bidi_class(c) {
        BidiClass::R | BidiClass::AL => true,
        _ => false,
    }
}

/// D.2 Characters with bidirectional property "L"
pub fn bidi_l(c: char) -> bool {
    match bidi_class(c) {
        BidiClass::L => true,
        _ => false,
    }
}