Mercurial > projects > dil
view trunk/src/Token.d @ 323:6259fb93e3dd
- Rewrote scanSpecialToken().
- Added Filespec to enum TOK.
- Added another nested struct to union in Token.
- Deleted ExpectedNormalStringLiteral from enum MID and added ExpectedFilespec and UnterminatedFilespec. Adapted lang_de.d and lang_en.d accordingly.
- Fixed some code in scanNumber(). Added some assert statements.
author | aziz |
---|---|
date | Tue, 21 Aug 2007 15:26:00 +0000 |
parents | ebd21bbf296e |
children |
line wrap: on
line source
/++ Author: Aziz Köksal License: GPL3 +/ module Token; import std.c.stdlib : malloc, free; import std.outofmemory; struct Position { size_t loc; size_t col; } enum TOK : ushort { Invalid, /// Flag for whitespace tokens that must be ignored in the parsing phase. Whitespace = 0x8000, Comment = 1 | Whitespace, Shebang = 2 | Whitespace, HashLine = 3 | Whitespace, Filespec = 4 | Whitespace, Identifier = 5, String, Special, CharLiteral, WCharLiteral, DCharLiteral, // Numbers Int32, Int64, Uint32, Uint64, // Floating point number scanner relies on this order. (FloatXY + 3 == ImaginaryXY) Float32, Float64, Float80, Imaginary32, Imaginary64, Imaginary80, // Brackets LParen, RParen, LBracket, RBracket, LBrace, RBrace, Dot, Slice, Ellipses, // Floating point number operators Unordered, UorE, UorG, UorGorE, UorL, UorLorE, LorEorG, LorG, // Normal operators Assign, Equal, NotEqual, Not, LessEqual, Less, GreaterEqual, Greater, LShiftAssign, LShift, RShiftAssign,RShift, URShiftAssign, URShift, OrAssign, OrLogical, OrBinary, AndAssign, AndLogical, AndBinary, PlusAssign, PlusPlus, Plus, MinusAssign, MinusMinus, Minus, DivAssign, Div, MulAssign, Mul, ModAssign, Mod, XorAssign, Xor, CatAssign, Catenate, Tilde, Identity, NotIdentity, Colon, Semicolon, Question, Comma, Dollar, /* Keywords: NB.: Token.isKeyword() depends on this list being contiguous. */ Abstract,Alias,Align,Asm,Assert,Auto,Body, Bool,Break,Byte,Case,Cast,Catch,Cdouble, Cent,Cfloat,Char,Class,Const,Continue,Creal, Dchar,Debug,Default,Delegate,Delete,Deprecated,Do, Double,Else,Enum,Export,Extern,False,Final, Finally,Float,For,Foreach,Foreach_reverse,Function,Goto, Idouble,If,Ifloat,Import,In,Inout,Int, Interface,Invariant,Ireal,Is,Lazy,Long,Macro/+D2.0+/, Mixin,Module,New,Null,Out,Override,Package, Pragma,Private,Protected,Public,Real,Ref/+D2.0+/,Return, Scope,Short,Static,Struct,Super,Switch,Synchronized, Template,This,Throw,Traits/+D2.0+/,True,Try,Typedef,Typeid, Typeof,Ubyte,Ucent,Uint,Ulong,Union,Unittest, Ushort,Version,Void,Volatile,Wchar,While,With, HEAD, // start of linked list EOF } alias TOK.Abstract KeywordsBegin; alias TOK.With KeywordsEnd; struct Token { TOK type; // Position pos; Token* next, prev; char* start; char* end; union { struct { Token* line_num; // #line number Token* line_filespec; // #line number filespec } struct { string str; char pf; } dchar dchar_; long long_; ulong ulong_; int int_; uint uint_; float float_; double double_; real real_; } alias srcText identifier; string srcText() { assert(start && end); return start[0 .. end - start]; } static string toString(TOK tok) { return tokToString[tok]; } bool isKeyword() { return KeywordsBegin <= type && type <= KeywordsEnd; } bool isWhitespace() { return !!(type & TOK.Whitespace); } int opEquals(TOK type2) { return type == type2; } new(size_t size) { void* p = malloc(size); if (p is null) throw new OutOfMemoryException(); *cast(Token*)p = Token.init; return p; } delete(void* p) { free(p); } } string[] tokToString = [ "Invalid", "Comment", "#! /shebang/", "#line", "Identifier", "String", "Special", "CharLiteral", "WCharLiteral", "DCharLiteral", "Int32", "Int64", "Uint32", "Uint64", "Float32", "Float64", "Float80", "Imaginary32", "Imaginary64", "Imaginary80", "(", ")", "[", "]", "{", "}", ".", "..", "...", "Unordered", "UorE", "UorG", "UorGorE", "UorL", "UorLorE", "LorEorG", "LorG", "=", "==", "!=", "!", "<=", "<", ">=", ">", "<<=", "<<", ">>=",">>", ">>>=", ">>>", "|=", "||", "|", "&=", "&&", "&", "+=", "++", "+", "-=", "--", "-", "/=", "/", "*=", "*", "%=", "%", "^=", "^", "~=", "~", "~", "is", "!is", ":", ";", "?", ",", "$", "abstract","alias","align","asm","assert","auto","body", "bool","break","byte","case","cast","catch","cdouble", "cent","cfloat","char","class","const","continue","creal", "dchar","debug","default","delegate","delete","deprecated","do", "double","else","enum","export","extern","false","final", "finally","float","for","foreach","foreach_reverse","function","goto", "idouble","if","ifloat","import","in","inout","int", "interface","invariant","ireal","is","lazy","long","macro", "mixin","module","new","null","out","override","package", "pragma","private","protected","public","real","ref","return", "scope","short","static","struct","super","switch","synchronized", "template","this","throw","true","try","typedef","typeid", "typeof","ubyte","ucent","uint","ulong","union","unittest", "ushort","version","void","volatile","wchar","while","with", "EOF" ];