153 lines
3.3 KiB
C++
153 lines
3.3 KiB
C++
/*
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* Copyright (c) 2015 Andrew Kelley
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*
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* This file is part of zig, which is MIT licensed.
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* See http://opensource.org/licenses/MIT
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*/
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#ifndef ZIG_TOKENIZER_HPP
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#define ZIG_TOKENIZER_HPP
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#include "buffer.hpp"
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enum TokenId {
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TokenIdEof,
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TokenIdSymbol,
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TokenIdKeywordFn,
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TokenIdKeywordReturn,
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TokenIdKeywordVar,
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TokenIdKeywordConst,
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TokenIdKeywordExtern,
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TokenIdKeywordPub,
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TokenIdKeywordUse,
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TokenIdKeywordExport,
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TokenIdKeywordTrue,
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TokenIdKeywordFalse,
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TokenIdKeywordIf,
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TokenIdKeywordElse,
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TokenIdKeywordGoto,
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TokenIdKeywordAsm,
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TokenIdKeywordVolatile,
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TokenIdKeywordStruct,
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TokenIdKeywordEnum,
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TokenIdKeywordUnion,
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TokenIdKeywordWhile,
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TokenIdKeywordFor,
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TokenIdKeywordContinue,
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TokenIdKeywordBreak,
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TokenIdKeywordNull,
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TokenIdKeywordNoAlias,
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TokenIdKeywordSwitch,
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TokenIdKeywordUndefined,
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TokenIdKeywordError,
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TokenIdKeywordType,
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TokenIdKeywordInline,
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TokenIdKeywordDefer,
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TokenIdLParen,
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TokenIdRParen,
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TokenIdComma,
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TokenIdStar,
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TokenIdStarStar,
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TokenIdLBrace,
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TokenIdRBrace,
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TokenIdLBracket,
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TokenIdRBracket,
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TokenIdStringLiteral,
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TokenIdCharLiteral,
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TokenIdSemicolon,
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TokenIdNumberLiteral,
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TokenIdPlus,
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TokenIdPlusPlus,
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TokenIdColon,
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TokenIdArrow,
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TokenIdFatArrow,
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TokenIdDash,
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TokenIdNumberSign,
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TokenIdBoolOr,
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TokenIdBoolAnd,
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TokenIdBinOr,
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TokenIdAmpersand,
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TokenIdBinXor,
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TokenIdEq,
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TokenIdTimesEq,
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TokenIdTimesPercent,
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TokenIdTimesPercentEq,
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TokenIdDivEq,
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TokenIdModEq,
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TokenIdPlusEq,
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TokenIdPlusPercent,
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TokenIdPlusPercentEq,
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TokenIdMinusEq,
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TokenIdMinusPercent,
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TokenIdMinusPercentEq,
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TokenIdBitShiftLeftEq,
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TokenIdBitShiftLeftPercent,
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TokenIdBitShiftLeftPercentEq,
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TokenIdBitShiftRightEq,
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TokenIdBitAndEq,
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TokenIdBitXorEq,
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TokenIdBitOrEq,
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TokenIdBoolAndEq,
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TokenIdBoolOrEq,
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TokenIdCmpEq,
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TokenIdBang,
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TokenIdTilde,
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TokenIdCmpNotEq,
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TokenIdCmpLessThan,
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TokenIdCmpGreaterThan,
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TokenIdCmpLessOrEq,
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TokenIdCmpGreaterOrEq,
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TokenIdBitShiftLeft,
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TokenIdBitShiftRight,
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TokenIdSlash,
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TokenIdPercent,
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TokenIdPercentPercent,
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TokenIdDot,
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TokenIdEllipsis,
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TokenIdMaybe,
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TokenIdDoubleQuestion,
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TokenIdMaybeAssign,
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TokenIdAtSign,
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TokenIdPercentDot,
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};
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struct Token {
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TokenId id;
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int start_pos;
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int end_pos;
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int start_line;
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int start_column;
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// for id == TokenIdNumberLiteral
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int radix; // if != 10, then skip the first 2 characters
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int decimal_point_pos; // either exponent_marker_pos or the position of the '.'
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int exponent_marker_pos; // either end_pos or the position of the 'e'/'p'
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// for id == TokenIdStringLiteral
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int raw_string_start;
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int raw_string_end;
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};
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struct Tokenization {
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ZigList<Token> *tokens;
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ZigList<int> *line_offsets;
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// if an error occurred
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Buf *err;
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int err_line;
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int err_column;
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};
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void tokenize(Buf *buf, Tokenization *out_tokenization);
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void print_tokens(Buf *buf, ZigList<Token> *tokens);
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int get_digit_value(uint8_t c);
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const char * token_name(TokenId id);
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bool valid_symbol_starter(uint8_t c);
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bool is_zig_keyword(Buf *buf);
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#endif
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