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33 #ifndef CPLUSPLUS_BACKWARDSSCANNER_H
34 #define CPLUSPLUS_BACKWARDSSCANNER_H
36 #include "SimpleLexer.h"
38 #include <QtGui/QTextCursor>
39 #include <QtGui/QTextBlock>
43 class CPLUSPLUS_EXPORT BackwardsScanner
45 enum { MAX_BLOCK_COUNT = 10 };
48 explicit BackwardsScanner(const QTextCursor &cursor,
49 int maxBlockCount = MAX_BLOCK_COUNT,
50 const QString &suffix = QString(),
51 bool skipComments = true);
53 int startToken() const;
55 int startPosition() const;
58 QString mid(int index) const;
60 QString text(int index) const;
61 QStringRef textRef(int index) const;
63 Token LA(int index) const;
65 // n-la token is [startToken - n]
66 Token operator[](int index) const; // ### deprecate
68 QString indentationString(int index) const;
70 int startOfLine(int index) const;
71 int startOfMatchingBrace(int index) const;
72 int startOfBlock(int index) const;
76 static int previousBlockState(const QTextBlock &block);
79 const Token &fetchToken(int tokenIndex);
86 SimpleLexer _tokenize;
92 } // end of namespace CPlusPlus
94 #endif // CPLUSPLUS_BACKWARDSSCANNER_H