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    41 

    42 /*

    43   text.h

    44 */

    45 

    46 #ifndef TEXT_H

    47 #define TEXT_H

    48 

    49 #include "atom.h"

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 class Text

    54 {

    55  public:

    56     Text();

    57     explicit Text(const QString &str);

    58     Text(const Text& text);

    59     ~Text();

    60 

    61     Text& operator=(const Text& text);

    62 

    63     Atom *firstAtom() { return first; }

    64     Atom *lastAtom() { return last; }

    65     Text& operator<<(Atom::Type atomType);

    66     Text& operator<<(const QString& string);

    67     Text& operator<<(const Atom& atom);

    68     Text& operator<<(const Text& text);

    69     void stripFirstAtom();

    70     void stripLastAtom();

    71 

    72     bool isEmpty() const { return first == 0; }

    73     QString toString() const;

    74     const Atom *firstAtom() const { return first; }

    75     const Atom *lastAtom() const { return last; }

    76     Text subText(Atom::Type left, Atom::Type right, const Atom *from = 0) const;

    77     void dump() const;

    78 

    79     static Text subText(const Atom *begin, const Atom *end = 0);

    80     static Text sectionHeading(const Atom *sectionBegin);

    81     static const Atom *sectionHeadingAtom(const Atom *sectionLeft);

    82     static int compare(const Text &text1, const Text &text2);

    83 

    84  private:

    85     void clear();

    86 

    87     Atom *first;

    88     Atom *last;

    89 };

    90 

    91 inline bool operator==(const Text &text1, const Text &text2)

    92 { return Text::compare(text1, text2) == 0; }

    93 inline bool operator!=(const Text &text1, const Text &text2)

    94 { return Text::compare(text1, text2) != 0; }

    95 inline bool operator<(const Text &text1, const Text &text2)

    96 { return Text::compare(text1, text2) < 0; }

    97 inline bool operator<=(const Text &text1, const Text &text2)

    98 { return Text::compare(text1, text2) <= 0; }

    99 inline bool operator>(const Text &text1, const Text &text2)

   100 { return Text::compare(text1, text2) > 0; }

   101 inline bool operator>=(const Text &text1, const Text &text2)

   102 { return Text::compare(text1, text2) >= 0; }

   103 

   104 QT_END_NAMESPACE

   105 

   106 #endif