110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
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#ifndef buffer_hh_INCLUDED
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#define buffer_hh_INCLUDED
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#include <string>
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#include <vector>
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namespace Kakoune
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{
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class Buffer;
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typedef int BufferPos;
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typedef int BufferSize;
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typedef char BufferChar;
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typedef std::basic_string<BufferChar> BufferString;
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struct LineAndColumn
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{
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BufferPos line;
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BufferPos column;
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LineAndColumn(BufferPos line = 0, BufferPos column = 0)
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: line(line), column(column) {}
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};
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class BufferIterator
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{
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public:
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typedef BufferChar value_type;
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typedef BufferSize difference_type;
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typedef const value_type* pointer;
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typedef const value_type& reference;
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typedef std::bidirectional_iterator_tag iterator_category;
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BufferIterator() : m_buffer(NULL), m_position(0) {}
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BufferIterator(const Buffer& buffer, BufferPos position);
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BufferIterator& operator=(const BufferIterator& iterator);
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bool operator== (const BufferIterator& iterator) const;
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bool operator!= (const BufferIterator& iterator) const;
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bool operator< (const BufferIterator& iterator) const;
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bool operator<= (const BufferIterator& iterator) const;
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BufferChar operator* () const;
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BufferSize operator- (const BufferIterator& iterator) const;
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BufferIterator operator+ (BufferSize size) const;
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BufferIterator operator- (BufferSize size) const;
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BufferIterator& operator+= (BufferSize size);
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BufferIterator& operator-= (BufferSize size);
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BufferIterator& operator++ ();
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BufferIterator& operator-- ();
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bool is_begin() const;
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bool is_end() const;
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private:
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const Buffer* m_buffer;
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BufferPos m_position;
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friend class Buffer;
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};
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class Buffer
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{
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public:
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Buffer(const std::string& name);
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void erase(const BufferIterator& begin,
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const BufferIterator& end);
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void insert(const BufferIterator& position,
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const BufferString& string);
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BufferString string(const BufferIterator& begin,
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const BufferIterator& end) const;
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BufferIterator begin() const;
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BufferIterator end() const;
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BufferSize length() const;
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BufferIterator iterator_at(const LineAndColumn& line_and_column) const;
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LineAndColumn line_and_column_at(const BufferIterator& iterator) const;
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LineAndColumn clamp(const LineAndColumn& line_and_column) const;
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const std::string& name() const { return m_name; }
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const BufferString& content() const { return m_content; }
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private:
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BufferChar at(BufferPos position) const;
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friend class BufferIterator;
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std::vector<BufferPos> m_lines;
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void compute_lines();
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BufferPos line_at(const BufferIterator& iterator) const;
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BufferSize line_length(BufferPos line) const;
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BufferString m_content;
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std::string m_name;
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};
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}
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#endif // buffer_hh_INCLUDED
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