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| |
| /* |
| tokenizer.h |
| */ |
| |
| #ifndef TOKENIZER_H |
| #define TOKENIZER_H |
| |
| #include <qfile.h> |
| #include <qstack.h> |
| #include <qstring.h> |
| |
| #include "location.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| /* |
| Here come the C++ tokens we support. The first part contains |
| all-purpose tokens; then come keywords. |
| |
| If you add a keyword, make sure to modify the keyword array in |
| tokenizer.cpp as well, and possibly adjust Tok_FirstKeyword and |
| Tok_LastKeyword. |
| */ |
| enum { Tok_Eoi, Tok_Ampersand, Tok_Aster, Tok_Caret, Tok_LeftParen, |
| Tok_RightParen, Tok_LeftParenAster, Tok_Equal, Tok_LeftBrace, |
| Tok_RightBrace, Tok_Semicolon, Tok_Colon, Tok_LeftAngle, |
| Tok_RightAngle, Tok_Comma, Tok_Ellipsis, Tok_Gulbrandsen, |
| Tok_LeftBracket, Tok_RightBracket, Tok_Tilde, Tok_SomeOperator, |
| Tok_Number, Tok_String, Tok_Doc, Tok_Comment, Tok_Ident, Tok_At, |
| Tok_char, Tok_class, Tok_const, Tok_double, Tok_enum, |
| Tok_explicit, Tok_friend, Tok_inline, Tok_int, Tok_long, |
| Tok_namespace, Tok_operator, Tok_private, Tok_protected, |
| Tok_public, Tok_short, Tok_signals, Tok_signed, Tok_slots, |
| Tok_static, Tok_struct, Tok_template, Tok_typedef, |
| Tok_typename, Tok_union, Tok_unsigned, Tok_using, Tok_virtual, |
| Tok_void, Tok_volatile, Tok_int64, Tok_Q_OBJECT, Tok_Q_OVERRIDE, |
| Tok_Q_PROPERTY, Tok_Q_PRIVATE_PROPERTY, Tok_Q_DECLARE_SEQUENTIAL_ITERATOR, |
| Tok_Q_DECLARE_MUTABLE_SEQUENTIAL_ITERATOR, |
| Tok_Q_DECLARE_ASSOCIATIVE_ITERATOR, |
| Tok_Q_DECLARE_MUTABLE_ASSOCIATIVE_ITERATOR, |
| Tok_Q_DECLARE_FLAGS, Tok_Q_SIGNALS, Tok_Q_SLOTS, Tok_QT_COMPAT, |
| Tok_QT_COMPAT_CONSTRUCTOR, Tok_QT_DEPRECATED, Tok_QT_MOC_COMPAT, |
| Tok_QT_MODULE, Tok_QT3_SUPPORT, Tok_QT3_SUPPORT_CONSTRUCTOR, |
| Tok_QT3_MOC_SUPPORT, Tok_QDOC_PROPERTY, |
| Tok_FirstKeyword = Tok_char, Tok_LastKeyword = Tok_QDOC_PROPERTY }; |
| |
| /* |
| The Tokenizer class implements lexical analysis of C++ source |
| files. |
| |
| Not every operator or keyword of C++ is recognized; only those |
| that are interesting to us. Some Qt keywords or macros are also |
| recognized. |
| */ |
| |
| class Tokenizer |
| { |
| public: |
| Tokenizer(const Location& loc, const QByteArray &in); |
| Tokenizer(const Location& loc, QFile &file); |
| |
| ~Tokenizer(); |
| |
| int getToken(); |
| void setParsingFnOrMacro(bool macro) { parsingMacro = macro; } |
| bool parsingFnOrMacro() const { return parsingMacro; } |
| |
| const Location &location() const { return yyTokLoc; } |
| QString previousLexeme() const; |
| QString lexeme() const; |
| QString version() const { return yyVersion; } |
| int braceDepth() const { return yyBraceDepth; } |
| int parenDepth() const { return yyParenDepth; } |
| int bracketDepth() const { return yyBracketDepth; } |
| |
| static void initialize(const Config &config); |
| static void terminate(); |
| static bool isTrue(const QString &condition); |
| |
| private: |
| void init(); |
| void start(const Location& loc); |
| /* |
| This limit on the length of a lexeme seems fairly high, but a |
| doc comment can be arbitrarily long. The previous 65,536 limit |
| was reached by Mark Summerfield. |
| */ |
| enum { yyLexBufSize = 524288 }; |
| |
| int getch() |
| { |
| return yyPos == yyIn.size() ? EOF : yyIn[yyPos++]; |
| } |
| |
| inline int getChar() |
| { |
| if (yyCh == EOF) |
| return EOF; |
| if (yyLexLen < yyLexBufSize - 1) { |
| yyLex[yyLexLen++] = (char) yyCh; |
| yyLex[yyLexLen] = '\0'; |
| } |
| yyCurLoc.advance(yyCh); |
| int ch = getch(); |
| if (ch == EOF) |
| return EOF; |
| // cast explicitly to make sure the value of ch |
| // is in range [0..255] to avoid assert messages |
| // when using debug CRT that checks its input. |
| return int(uint(uchar(ch))); |
| } |
| |
| int getTokenAfterPreprocessor(); |
| void pushSkipping(bool skip); |
| bool popSkipping(); |
| |
| Location yyTokLoc; |
| Location yyCurLoc; |
| char *yyLexBuf1; |
| char *yyLexBuf2; |
| char *yyPrevLex; |
| char *yyLex; |
| size_t yyLexLen; |
| QStack<bool> yyPreprocessorSkipping; |
| int yyNumPreprocessorSkipping; |
| int yyBraceDepth; |
| int yyParenDepth; |
| int yyBracketDepth; |
| int yyCh; |
| |
| QString yyVersion; |
| bool parsingMacro; |
| |
| protected: |
| QByteArray yyIn; |
| int yyPos; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |