Moved all code to src/ and include/ directories.

src/regex.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include <vector>
+#include <string>
+#include <ios>
+
+namespace YAML
+{
+	enum REGEX_OP { REGEX_EMPTY, REGEX_MATCH, REGEX_RANGE, REGEX_OR, REGEX_AND, REGEX_NOT, REGEX_SEQ };
+
+	// simplified regular expressions
+	// . Only straightforward matches (no repeated characters)
+	// . Only matches from start of string
+	class RegEx
+	{
+	private:
+		struct Operator {
+			virtual ~Operator() {}
+			virtual int Match(const std::string& str, const RegEx& regex) const = 0;
+			virtual int Match(std::istream& in, const RegEx& regex) const = 0;
+		};
+
+		struct MatchOperator: public Operator {
+			virtual int Match(const std::string& str, const RegEx& regex) const;
+			virtual int Match(std::istream& in, const RegEx& regex) const;
+		};
+
+		struct RangeOperator: public Operator {
+			virtual int Match(const std::string& str, const RegEx& regex) const;
+			virtual int Match(std::istream& in, const RegEx& regex) const;
+		};
+
+		struct OrOperator: public Operator {
+			virtual int Match(const std::string& str, const RegEx& regex) const;
+			virtual int Match(std::istream& in, const RegEx& regex) const;
+		};
+
+		struct AndOperator: public Operator {
+			virtual int Match(const std::string& str, const RegEx& regex) const;
+			virtual int Match(std::istream& in, const RegEx& regex) const;
+		};
+
+		struct NotOperator: public Operator {
+			virtual int Match(const std::string& str, const RegEx& regex) const;
+			virtual int Match(std::istream& in, const RegEx& regex) const;
+		};
+
+		struct SeqOperator: public Operator {
+			virtual int Match(const std::string& str, const RegEx& regex) const;
+			virtual int Match(std::istream& in, const RegEx& regex) const;
+		};
+
+	public:
+		friend struct Operator;
+
+		RegEx();
+		RegEx(char ch);
+		RegEx(char a, char z);
+		RegEx(const std::string& str, REGEX_OP op = REGEX_SEQ);
+		RegEx(const RegEx& rhs);
+		~RegEx();
+
+		RegEx& operator = (const RegEx& rhs);
+
+		bool Matches(char ch) const;
+		bool Matches(const std::string& str) const;
+		bool Matches(std::istream& in) const;
+		int Match(const std::string& str) const;
+		int Match(std::istream& in) const;
+
+		friend RegEx operator ! (const RegEx& ex);
+		friend RegEx operator || (const RegEx& ex1, const RegEx& ex2);
+		friend RegEx operator && (const RegEx& ex1, const RegEx& ex2);
+		friend RegEx operator + (const RegEx& ex1, const RegEx& ex2);
+
+	private:
+		RegEx(REGEX_OP op);
+		void SetOp();
+
+	private:
+		REGEX_OP m_op;
+		Operator *m_pOp;
+		char m_a, m_z;
+		std::vector <RegEx> m_params;
+	};
+}