Class SelectionRange

scintilla/src/Selection.h:85–131

};

struct SelectionRange {
	SelectionPosition caret;
	SelectionPosition anchor;

	SelectionRange() : caret(), anchor() {
	}
	SelectionRange(SelectionPosition single) : caret(single), anchor(single) {
	}
	SelectionRange(int single) : caret(single), anchor(single) {
	}
	SelectionRange(SelectionPosition caret_, SelectionPosition anchor_) : caret(caret_), anchor(anchor_) {
	}
	SelectionRange(int caret_, int anchor_) : caret(caret_), anchor(anchor_) {
	}
	bool Empty() const {
		return anchor == caret;
	}
	int Length() const;
	// int Width() const;	// Like Length but takes virtual space into account
	bool operator ==(const SelectionRange &other) const {
		return caret == other.caret && anchor == other.anchor;
	}
	bool operator <(const SelectionRange &other) const {
		return caret < other.caret || ((caret == other.caret) && (anchor < other.anchor));
	}
	void Reset() {
		anchor.Reset();
		caret.Reset();
	}
	void ClearVirtualSpace() {
		anchor.SetVirtualSpace(0);
		caret.SetVirtualSpace(0);
	}
	bool Contains(int pos) const;
	bool Contains(SelectionPosition sp) const;
	bool ContainsCharacter(int posCharacter) const;
	SelectionSegment Intersect(SelectionSegment check) const;
	SelectionPosition Start() const {
		return (anchor < caret) ? anchor : caret;
	}
	SelectionPosition End() const {
		return (anchor < caret) ? caret : anchor;
	}
	bool Trim(SelectionRange range);
	// If range is all virtual collapse to start of virtual space
	void MinimizeVirtualSpace();
};

class Selection {
	std::vector<SelectionRange> ranges;