94 lines
1.5 KiB
C++
94 lines
1.5 KiB
C++
#ifndef ANSIDOCUMENTITERATOR_H_12481491281240
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#define ANSIDOCUMENTITERATOR_H_12481491281240
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class AnsiDocumentIterator : public std::iterator<std::bidirectional_iterator_tag, char>
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{
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public:
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AnsiDocumentIterator() :
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m_doc(0),
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m_pos(0),
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m_end(0)
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{
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}
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AnsiDocumentIterator(Document* doc, int pos, int end) :
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m_doc(doc),
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m_pos(pos),
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m_end(end)
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{
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// Check for debug builds
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PLATFORM_ASSERT(m_pos <= m_end);
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// Ensure for release.
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if (m_pos > m_end)
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{
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m_pos = m_end;
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}
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}
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AnsiDocumentIterator(const AnsiDocumentIterator& copy) :
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m_doc(copy.m_doc),
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m_pos(copy.m_pos),
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m_end(copy.m_end)
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{
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// Check for debug builds
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PLATFORM_ASSERT(m_pos <= m_end);
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// Ensure for release.
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if (m_pos > m_end)
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{
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m_pos = m_end;
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}
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}
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bool operator == (const AnsiDocumentIterator& other) const
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{
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return (ended() == other.ended()) && (m_doc == other.m_doc) && (m_pos == other.m_pos);
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}
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bool operator != (const AnsiDocumentIterator& other) const
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{
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return !(*this == other);
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}
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char operator * () const
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{
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return charAt(m_pos);
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}
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AnsiDocumentIterator& operator ++ ()
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{
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PLATFORM_ASSERT(m_pos < m_end);
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m_pos++;
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return *this;
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}
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AnsiDocumentIterator& operator -- ()
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{
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m_pos--;
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return *this;
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}
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int pos() const
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{
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return m_pos;
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}
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private:
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char charAt(int position) const
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{
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return m_doc->CharAt(position);
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}
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bool ended() const
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{
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return m_pos == m_end;
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}
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int m_pos;
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int m_end;
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Document* m_doc;
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};
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#endif |