1Uchar(3) OCamldoc Uchar(3)
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6 Uchar - Unicode characters.
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9 Module Uchar
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12 Module Uchar
13 : sig end
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16 Unicode characters.
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19 Since 4.03
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25 type t
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28 The type for Unicode characters.
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30 A value of this type represents an Unicode scalar value which is an
31 integer in the ranges 0x0000 ... 0xD7FF or 0xE000 ... 0x10FFFF .
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35 val min : t
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38 min is U+0000.
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42 val max : t
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45 max is U+10FFFF.
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49 val succ : t -> t
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52 succ u is the scalar value after u in the set of Unicode scalar values.
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55 Raises Invalid_argument if u is Uchar.max .
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59 val pred : t -> t
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62 pred u is the scalar value before u in the set of Unicode scalar val‐
63 ues.
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66 Raises Invalid_argument if u is Uchar.min .
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70 val is_valid : int -> bool
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73 is_valid n is true iff n is an Unicode scalar value (i.e. in the ranges
74 0x0000 ... 0xD7FF or 0xE000 ... 0x10FFFF ).
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78 val of_int : int -> t
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81 of_int i is i as an Unicode character.
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84 Raises Invalid_argument if i does not satisfy Uchar.is_valid .
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88 val to_int : t -> int
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91 to_int u is u as an integer.
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95 val is_char : t -> bool
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98 is_char u is true iff u is a latin1 OCaml character.
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102 val of_char : char -> t
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105 of_char c is c as an Unicode character.
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109 val to_char : t -> char
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112 to_char u is u as an OCaml latin1 character.
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115 Raises Invalid_argument if u does not satisfy Uchar.is_char .
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119 val equal : t -> t -> bool
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122 equal u u' is u = u' .
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126 val compare : t -> t -> int
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129 compare u u' is Pervasives.compare u u' .
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133 val hash : t -> int
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136 hash u associates a non-negative integer to u .
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1422018-04-14 source: Uchar(3)