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annotate trunk/src/Token.d @ 35:c470b9356e35

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- Added code for parsing Unordered, UorE, UorG, UorGorE, UorL, UorLorE, NotEqual and Not tokens.
author aziz
date Tue, 26 Jun 2007 07:57:00 +0000
parents d7011daa4740
children 3c7210a722f7
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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 /* Braces */
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21 LParen,
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22 RParen,
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23 LBracket,
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24 RBracket,
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25 LBrace,
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26 RBrace,
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27
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28 Dot, Slice, Ellipses,
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29
35
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30 Unordered,
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31 UorE,
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32 UorG,
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33 UorGorE,
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34 UorL,
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35 UorLorE,
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36
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37 Assign, Equal, NotEqual, Not,
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38 OrAssign, OrLogical, OrBinary,
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39 AndAssign, AndLogical, AndBinary,
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40 PlusAssign, PlusPlus, Plus,
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41 MinusAssign, MinusMinus, Minus,
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42 DivAssign, Div,
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43 MulAssign, Mul,
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44 ModAssign, Mod,
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45 XorAssign, Xor,
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46 CatAssign, Catenate,
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47
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48 Tilde,
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49 Colon,
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50 Semicolon,
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51 Question,
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52 Comma,
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53 Dollar,
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54
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55 /* Keywords:
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56 NB.: Token.isKeyword() depends on this list being contiguous.
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57 */
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58 Abstract,Alias,Align,Asm,Assert,Auto,Body,
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59 Bool,Break,Byte,Case,Cast,Catch,Cdouble,
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60 Cent,Cfloat,Char,Class,Const,Continue,Creal,
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61 Dchar,Debug,Default,Delegate,Delete,Deprecated,Do,
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62 Double,Else,Enum,Export,Extern,False,Final,
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63 Finally,Float,For,Foreach,Foreach_reverse,Function,Goto,
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64 Idouble,If,Ifloat,Import,In,Inout,Int,
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65 Interface,Invariant,Ireal,Is,Lazy,Long,Macro,
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66 Mixin,Module,New,Null,Out,Override,Package,
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67 Pragma,Private,Protected,Public,Real,Ref,Return,
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68 Scope,Short,Static,Struct,Super,Switch,Synchronized,
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69 Template,This,Throw,True,Try,Typedef,Typeid,
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70 Typeof,Ubyte,Ucent,Uint,Ulong,Union,Unittest,
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71 Ushort,Version,Void,Volatile,Wchar,While,With,
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72
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73 EOF
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74 }
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75
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76 alias TOK.Abstract KeywordsBegin;
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77 alias TOK.With KeywordsEnd;
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78
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79 struct Token
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80 {
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81 TOK type;
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82 Position pos;
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83
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84 char* start;
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85 char* end;
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86
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87 union
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88 {
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89 struct
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90 {
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91 string str;
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92 char pf;
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93 }
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94 dchar chr;
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95 uint _uint;
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96 float f;
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97 double d;
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98 }
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99
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100 string span()
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101 {
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102 assert(start && end);
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103 return start[0 .. end - start];
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104 }
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105
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106 bool isKeyword()
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107 {
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108 if (KeywordsBegin <= type && type <= KeywordsEnd)
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109 return true;
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110 return false;
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111 }
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112 }