annotate trunk/src/dil/Token.d @ 326:4a7359b88c11

- Added package 'dil' to module declarations.
author aziz
date Tue, 21 Aug 2007 16:35:04 +0000
parents 540ec3753263
children 95f1b6e43214
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 /++
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2 Author: Aziz Köksal
249
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3 License: GPL3
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4 +/
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5 module dil.Token;
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6 import std.c.stdlib : malloc, free;
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7 import std.outofmemory;
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8
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9 struct Position
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10 {
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11 size_t loc;
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12 size_t col;
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13 }
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14
314
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15 enum TOK : ushort
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16 {
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17 Invalid,
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18
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19 /// Flag for whitespace tokens that must be ignored in the parsing phase.
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20 Whitespace = 0x8000,
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21 Comment = 1 | Whitespace,
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22 Shebang = 2 | Whitespace,
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23 HashLine = 3 | Whitespace,
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24 Filespec = 4 | Whitespace,
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25
323
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26 Identifier = 5,
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27 String,
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28 Special,
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29 CharLiteral, WCharLiteral, DCharLiteral,
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30
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31 // Numbers
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32 Int32, Int64, Uint32, Uint64,
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33 // Floating point number scanner relies on this order. (FloatXY + 3 == ImaginaryXY)
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34 Float32, Float64, Float80,
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35 Imaginary32, Imaginary64, Imaginary80,
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36
36
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37
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38 // Brackets
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39 LParen,
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40 RParen,
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41 LBracket,
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42 RBracket,
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43 LBrace,
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44 RBrace,
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45
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46 Dot, Slice, Ellipses,
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47
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48 // Floating point number operators
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49 Unordered,
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50 UorE,
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51 UorG,
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52 UorGorE,
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53 UorL,
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54 UorLorE,
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55 LorEorG,
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56 LorG,
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57
36
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58 // Normal operators
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59 Assign, Equal, NotEqual, Not,
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60 LessEqual, Less,
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61 GreaterEqual, Greater,
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62 LShiftAssign, LShift,
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63 RShiftAssign,RShift,
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64 URShiftAssign, URShift,
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65 OrAssign, OrLogical, OrBinary,
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66 AndAssign, AndLogical, AndBinary,
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67 PlusAssign, PlusPlus, Plus,
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68 MinusAssign, MinusMinus, Minus,
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69 DivAssign, Div,
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70 MulAssign, Mul,
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71 ModAssign, Mod,
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72 XorAssign, Xor,
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73 CatAssign, Catenate,
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74 Tilde,
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75 Identity, NotIdentity,
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76
21
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77 Colon,
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78 Semicolon,
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79 Question,
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80 Comma,
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81 Dollar,
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82
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83 /* Keywords:
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84 NB.: Token.isKeyword() depends on this list being contiguous.
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85 */
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86 Abstract,Alias,Align,Asm,Assert,Auto,Body,
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87 Bool,Break,Byte,Case,Cast,Catch,Cdouble,
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88 Cent,Cfloat,Char,Class,Const,Continue,Creal,
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89 Dchar,Debug,Default,Delegate,Delete,Deprecated,Do,
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90 Double,Else,Enum,Export,Extern,False,Final,
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91 Finally,Float,For,Foreach,Foreach_reverse,Function,Goto,
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92 Idouble,If,Ifloat,Import,In,Inout,Int,
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93 Interface,Invariant,Ireal,Is,Lazy,Long,Macro/+D2.0+/,
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94 Mixin,Module,New,Null,Out,Override,Package,
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95 Pragma,Private,Protected,Public,Real,Ref/+D2.0+/,Return,
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96 Scope,Short,Static,Struct,Super,Switch,Synchronized,
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97 Template,This,Throw,Traits/+D2.0+/,True,Try,Typedef,Typeid,
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98 Typeof,Ubyte,Ucent,Uint,Ulong,Union,Unittest,
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99 Ushort,Version,Void,Volatile,Wchar,While,With,
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100
239
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101 HEAD, // start of linked list
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102 EOF
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103 }
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104
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105 alias TOK.Abstract KeywordsBegin;
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106 alias TOK.With KeywordsEnd;
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107
0
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108 struct Token
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109 {
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110 TOK type;
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111 // Position pos;
0
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112
239
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113 Token* next, prev;
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114
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115 char* start;
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116 char* end;
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117
0
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118 union
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119 {
31
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120 struct
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121 {
323
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122 Token* line_num; // #line number
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123 Token* line_filespec; // #line number filespec
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124 }
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125 struct
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126 {
31
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127 string str;
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128 char pf;
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129 }
62
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130 dchar dchar_;
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131 long long_;
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132 ulong ulong_;
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133 int int_;
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134 uint uint_;
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135 float float_;
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136 double double_;
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137 real real_;
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138 }
28
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139
107
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140 alias srcText identifier;
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141
65
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142 string srcText()
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143 {
30
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144 assert(start && end);
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145 return start[0 .. end - start];
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146 }
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147
210
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148 static string toString(TOK tok)
208
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149 {
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150 return tokToString[tok];
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151 }
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152
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153 bool isKeyword()
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154 {
163
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155 return KeywordsBegin <= type && type <= KeywordsEnd;
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156 }
208
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157
314
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158 bool isWhitespace()
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159 {
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160 return !!(type & TOK.Whitespace);
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161 }
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162
163
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163 int opEquals(TOK type2)
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164 {
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165 return type == type2;
f27a98bb17c7 - Fix: when parsing Declarator fails, type and ident is set to null.
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parents: 131
diff changeset
166 }
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
167
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
168 new(size_t size)
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parents: 210
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169 {
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
170 void* p = malloc(size);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
171 if (p is null)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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diff changeset
172 throw new OutOfMemoryException();
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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diff changeset
173 *cast(Token*)p = Token.init;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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diff changeset
174 return p;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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diff changeset
175 }
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
176
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
177 delete(void* p)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
178 {
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
179 free(p);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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parents: 210
diff changeset
180 }
208
0a9bccf74046 - Added string table and toString() method to Token.
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diff changeset
181 }
0a9bccf74046 - Added string table and toString() method to Token.
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diff changeset
182
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diff changeset
183 string[] tokToString = [
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diff changeset
184 "Invalid",
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185
314
ebd21bbf296e - Added Whitespace, Sheband and Hashline to enum TOK. TOK.Whitespace is a flag and tokens that are considered whitespace are flagged as such.
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186 "Comment",
ebd21bbf296e - Added Whitespace, Sheband and Hashline to enum TOK. TOK.Whitespace is a flag and tokens that are considered whitespace are flagged as such.
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187 "#! /shebang/",
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diff changeset
188 "#line",
ebd21bbf296e - Added Whitespace, Sheband and Hashline to enum TOK. TOK.Whitespace is a flag and tokens that are considered whitespace are flagged as such.
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diff changeset
189
208
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diff changeset
190 "Identifier",
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diff changeset
191 "String",
312
fa0b6f32c1ae - Added Special to enum TOK.
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parents: 269
diff changeset
192 "Special",
208
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diff changeset
193 "CharLiteral", "WCharLiteral", "DCharLiteral",
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parents: 163
diff changeset
194
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diff changeset
195 "Int32", "Int64", "Uint32", "Uint64",
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parents: 163
diff changeset
196 "Float32", "Float64", "Float80",
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parents: 163
diff changeset
197 "Imaginary32", "Imaginary64", "Imaginary80",
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parents: 163
diff changeset
198
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parents: 163
diff changeset
199 "(",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
200 ")",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
201 "[",
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parents: 163
diff changeset
202 "]",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
203 "{",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
204 "}",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
205
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
206 ".", "..", "...",
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parents: 163
diff changeset
207
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
208 "Unordered",
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parents: 163
diff changeset
209 "UorE",
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parents: 163
diff changeset
210 "UorG",
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parents: 163
diff changeset
211 "UorGorE",
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parents: 163
diff changeset
212 "UorL",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
213 "UorLorE",
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parents: 163
diff changeset
214 "LorEorG",
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parents: 163
diff changeset
215 "LorG",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
216
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
217 "=", "==", "!=", "!",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
218 "<=", "<",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
219 ">=", ">",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
220 "<<=", "<<",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
221 ">>=",">>",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
222 ">>>=", ">>>",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
223 "|=", "||", "|",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
224 "&=", "&&", "&",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
225 "+=", "++", "+",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
226 "-=", "--", "-",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
227 "/=", "/",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
228 "*=", "*",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
229 "%=", "%",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
230 "^=", "^",
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
231 "~=", "~",
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parents: 163
diff changeset
232 "~",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
233 "is", "!is",
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parents: 163
diff changeset
234
0a9bccf74046 - Added string table and toString() method to Token.
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parents: 163
diff changeset
235 ":",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
236 ";",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
237 "?",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
238 ",",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
239 "$",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
240
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
241 "abstract","alias","align","asm","assert","auto","body",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
242 "bool","break","byte","case","cast","catch","cdouble",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
243 "cent","cfloat","char","class","const","continue","creal",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
244 "dchar","debug","default","delegate","delete","deprecated","do",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
245 "double","else","enum","export","extern","false","final",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
246 "finally","float","for","foreach","foreach_reverse","function","goto",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
247 "idouble","if","ifloat","import","in","inout","int",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
248 "interface","invariant","ireal","is","lazy","long","macro",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
249 "mixin","module","new","null","out","override","package",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
250 "pragma","private","protected","public","real","ref","return",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
251 "scope","short","static","struct","super","switch","synchronized",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
252 "template","this","throw","true","try","typedef","typeid",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
253 "typeof","ubyte","ucent","uint","ulong","union","unittest",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
254 "ushort","version","void","volatile","wchar","while","with",
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
255
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
256 "EOF"
0a9bccf74046 - Added string table and toString() method to Token.
aziz
parents: 163
diff changeset
257 ];