sdk/lib/_internal/compiler/implementation/util/characters.dart - Issue 694353007: Move dart2js from sdk/lib/_internal/compiler to pkg/compiler

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Issue 694353007: Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 6 years, 1 month ago

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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file

2 // for details. All rights reserved. Use of this source code is governed by a

3 // BSD-style license that can be found in the LICENSE file.

4

5 library characters;

6

7 const int $EOF = 0;

8 const int $STX = 2;

9 const int $BS = 8;

10 const int $TAB = 9;

11 const int $LF = 10;

12 const int $VTAB = 11;

13 const int $FF = 12;

14 const int $CR = 13;

15 const int $SPACE = 32;

16 const int $BANG = 33;

17 const int $DQ = 34;

18 const int $HASH = 35;

19 const int $$ = 36;

20 const int $PERCENT = 37;

21 const int $AMPERSAND = 38;

22 const int $SQ = 39;

23 const int $OPEN_PAREN = 40;

24 const int $CLOSE_PAREN = 41;

25 const int $STAR = 42;

26 const int $PLUS = 43;

27 const int $COMMA = 44;

28 const int $MINUS = 45;

29 const int $PERIOD = 46;

30 const int $SLASH = 47;

31 const int $0 = 48;

32 const int $1 = 49;

33 const int $2 = 50;

34 const int $3 = 51;

35 const int $4 = 52;

36 const int $5 = 53;

37 const int $6 = 54;

38 const int $7 = 55;

39 const int $8 = 56;

40 const int $9 = 57;

41 const int $COLON = 58;

42 const int $SEMICOLON = 59;

43 const int $LT = 60;

44 const int $EQ = 61;

45 const int $GT = 62;

46 const int $QUESTION = 63;

47 const int $AT = 64;

48 const int $A = 65;

49 const int $B = 66;

50 const int $C = 67;

51 const int $D = 68;

52 const int $E = 69;

53 const int $F = 70;

54 const int $G = 71;

55 const int $H = 72;

56 const int $I = 73;

57 const int $J = 74;

58 const int $K = 75;

59 const int $L = 76;

60 const int $M = 77;

61 const int $N = 78;

62 const int $O = 79;

63 const int $P = 80;

64 const int $Q = 81;

65 const int $R = 82;

66 const int $S = 83;

67 const int $T = 84;

68 const int $U = 85;

69 const int $V = 86;

70 const int $W = 87;

71 const int $X = 88;

72 const int $Y = 89;

73 const int $Z = 90;

74 const int $OPEN_SQUARE_BRACKET = 91;

75 const int $BACKSLASH = 92;

76 const int $CLOSE_SQUARE_BRACKET = 93;

77 const int $CARET = 94;

78 const int $_ = 95;

79 const int $BACKPING = 96;

80 const int $a = 97;

81 const int $b = 98;

82 const int $c = 99;

83 const int $d = 100;

84 const int $e = 101;

85 const int $f = 102;

86 const int $g = 103;

87 const int $h = 104;

88 const int $i = 105;

89 const int $j = 106;

90 const int $k = 107;

91 const int $l = 108;

92 const int $m = 109;

93 const int $n = 110;

94 const int $o = 111;

95 const int $p = 112;

96 const int $q = 113;

97 const int $r = 114;

98 const int $s = 115;

99 const int $t = 116;

100 const int $u = 117;

101 const int $v = 118;

102 const int $w = 119;

103 const int $x = 120;

104 const int $y = 121;

105 const int $z = 122;

106 const int $OPEN_CURLY_BRACKET = 123;

107 const int $BAR = 124;

108 const int $CLOSE_CURLY_BRACKET = 125;

109 const int $TILDE = 126;

110 const int $DEL = 127;

111 const int $NBSP = 160;

112 const int $LS = 0x2028;

113 const int $PS = 0x2029;

114

115 const int $FIRST_SURROGATE = 0xd800;

116 const int $LAST_SURROGATE = 0xdfff;

117 const int $LAST_CODE_POINT = 0x10ffff;

118

119 bool isHexDigit(int characterCode) {

120 if (characterCode <= $9) return $0 <= characterCode;

121 characterCode \|= $a ^ $A;

122 return ($a <= characterCode && characterCode <= $f);

123 }

124

125 int hexDigitValue(int hexDigit) {

126 assert(isHexDigit(hexDigit));

127 // hexDigit is one of '0'..'9', 'A'..'F' and 'a'..'f'.

128 if (hexDigit <= $9) return hexDigit - $0;

129 return (hexDigit \| ($a ^ $A)) - ($a - 10);

130 }

131

132 bool isUnicodeScalarValue(int value) {

133 return value < $FIRST_SURROGATE \|\|

134 (value > $LAST_SURROGATE && value <= $LAST_CODE_POINT);

135 }

136

137 bool isUtf16LeadSurrogate(int value) {

138 return value >= 0xd800 && value <= 0xdbff;

139 }

140

141 bool isUtf16TrailSurrogate(int value) {

142 return value >= 0xdc00 && value <= 0xdfff;

143 }

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