Michael Fabian 'Xaymar' Dirks
114 lines
1.1 KiB
C++
114 lines
1.1 KiB
C++
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/*
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The Toker converts an inout stream into tokens for use by the parser.
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*/
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#ifndef TOKER_H
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#define TOKER_H
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enum {
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DIM = 0x8000,
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GOTO,
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GOSUB,
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EXIT,
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RETURN,
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IF,
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THEN,
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ELSE,
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ENDIF,
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ELSEIF,
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WHILE,
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WEND,
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FOR,
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TO,
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STEP,
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NEXT,
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FUNCTION,
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ENDFUNCTION,
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TYPE,
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ENDTYPE,
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EACH,
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GLOBAL,
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LOCAL,
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FIELD,
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BBCONST,
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SELECT,
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CASE,
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DEFAULT,
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ENDSELECT,
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REPEAT,
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UNTIL,
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FOREVER,
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DATA,
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READ,
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RESTORE,
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ABS,
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SGN,
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MOD,
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PI,
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BBTRUE,
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BBFALSE,
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BBINT,
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BBFLOAT,
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BBSTR,
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INCLUDE,
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BBNEW,
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BBDELETE,
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FIRST,
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LAST,
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INSERT,
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BEFORE,
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AFTER,
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BBNULL,
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OBJECT,
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BBHANDLE,
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AND,
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OR,
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XOR,
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NOT,
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SHL,
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SHR,
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SAR,
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LE,
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GE,
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NE,
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IDENT,
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INTCONST,
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BINCONST,
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HEXCONST,
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FLOATCONST,
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STRINGCONST
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};
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class Toker {
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public:
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Toker(istream& in);
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int pos();
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int curr();
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int next();
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string text();
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int lookAhead(int n);
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static int chars_toked;
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static map<string, int>& getKeywords();
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private:
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struct Toke {
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int n, from, to;
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Toke(int n, int f, int t) : n(n), from(f), to(t) {}
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};
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istream& in;
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string line;
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vector<Toke> tokes;
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void nextline();
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int curr_row, curr_toke;
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};
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#endif
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