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annotate trunk/src/Token.d @ 38:640c45aaaaee

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- Added code for parsing GreaterEqual, Greater, RShiftAssign, RShift, URShiftAssign and URShift tokens. - Renamed TOK.LessThan to TOK.Less.
author aziz
date Tue, 26 Jun 2007 08:58:02 +0000
parents 3c7210a722f7
children 69b940398d7b
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1 /++
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2 Author: Aziz Köksal
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3 License: GPL2
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4 +/
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5 module Token;
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6
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7 struct Position
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8 {
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9 size_t loc;
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10 size_t col;
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11 }
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12
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13 enum TOK
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14 {
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15 Identifier,
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16 Comment,
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17 String,
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18 Character,
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19 Number,
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20
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21 // Brackets
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22 LParen,
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23 RParen,
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24 LBracket,
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25 RBracket,
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26 LBrace,
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27 RBrace,
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28
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29 Dot, Slice, Ellipses,
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30
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31 // Floating point operators
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32 Unordered,
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33 UorE,
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34 UorG,
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35 UorGorE,
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36 UorL,
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37 UorLorE,
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38 LorEorG,
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39 LorG,
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40
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41 // Normal operators
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42 Assign, Equal, NotEqual, Not,
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43 LessEqual, Less,
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44 GreaterEqual, Greater,
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45 LShiftAssign, LShift,
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46 RShiftAssign,RShift,
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47 URShiftAssign, URShift,
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48 OrAssign, OrLogical, OrBinary,
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49 AndAssign, AndLogical, AndBinary,
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50 PlusAssign, PlusPlus, Plus,
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51 MinusAssign, MinusMinus, Minus,
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52 DivAssign, Div,
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53 MulAssign, Mul,
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54 ModAssign, Mod,
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55 XorAssign, Xor,
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56 CatAssign, Catenate,
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57
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58 Tilde,
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59 Colon,
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60 Semicolon,
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61 Question,
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62 Comma,
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63 Dollar,
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64
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65 /* Keywords:
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66 NB.: Token.isKeyword() depends on this list being contiguous.
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67 */
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68 Abstract,Alias,Align,Asm,Assert,Auto,Body,
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69 Bool,Break,Byte,Case,Cast,Catch,Cdouble,
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70 Cent,Cfloat,Char,Class,Const,Continue,Creal,
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71 Dchar,Debug,Default,Delegate,Delete,Deprecated,Do,
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72 Double,Else,Enum,Export,Extern,False,Final,
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73 Finally,Float,For,Foreach,Foreach_reverse,Function,Goto,
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74 Idouble,If,Ifloat,Import,In,Inout,Int,
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75 Interface,Invariant,Ireal,Is,Lazy,Long,Macro,
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76 Mixin,Module,New,Null,Out,Override,Package,
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77 Pragma,Private,Protected,Public,Real,Ref,Return,
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78 Scope,Short,Static,Struct,Super,Switch,Synchronized,
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79 Template,This,Throw,True,Try,Typedef,Typeid,
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80 Typeof,Ubyte,Ucent,Uint,Ulong,Union,Unittest,
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81 Ushort,Version,Void,Volatile,Wchar,While,With,
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82
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83 EOF
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84 }
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85
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86 alias TOK.Abstract KeywordsBegin;
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87 alias TOK.With KeywordsEnd;
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88
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89 struct Token
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90 {
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91 TOK type;
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92 Position pos;
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93
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94 char* start;
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95 char* end;
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96
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97 union
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98 {
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99 struct
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100 {
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101 string str;
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102 char pf;
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103 }
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104 dchar chr;
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105 uint _uint;
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106 float f;
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107 double d;
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108 }
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109
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110 string span()
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111 {
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112 assert(start && end);
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113 return start[0 .. end - start];
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114 }
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115
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116 bool isKeyword()
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117 {
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118 if (KeywordsBegin <= type && type <= KeywordsEnd)
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119 return true;
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120 return false;
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121 }
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122 }