Added api sketch

src/regex.cpp

@@ -0,0 +1,60 @@
+#include "regex.h"
+
+namespace YAML
+{
+	// constructors
+	RegEx::RegEx(): m_op(REGEX_EMPTY)
+	{
+	}
+	
+	RegEx::RegEx(REGEX_OP op): m_op(op)
+	{
+	}
+	
+	RegEx::RegEx(char ch): m_op(REGEX_MATCH), m_a(ch)
+	{
+	}
+	
+	RegEx::RegEx(char a, char z): m_op(REGEX_RANGE), m_a(a), m_z(z)
+	{
+	}
+	
+	RegEx::RegEx(const std::string& str, REGEX_OP op): m_op(op)
+	{
+		for(std::size_t i=0;i<str.size();i++)
+			m_params.push_back(RegEx(str[i]));
+	}
+	
+	// combination constructors
+	RegEx operator ! (const RegEx& ex)
+	{
+		RegEx ret(REGEX_NOT);
+		ret.m_params.push_back(ex);
+		return ret;
+	}
+	
+	RegEx operator || (const RegEx& ex1, const RegEx& ex2)
+	{
+		RegEx ret(REGEX_OR);
+		ret.m_params.push_back(ex1);
+		ret.m_params.push_back(ex2);
+		return ret;
+	}
+	
+	RegEx operator && (const RegEx& ex1, const RegEx& ex2)
+	{
+		RegEx ret(REGEX_AND);
+		ret.m_params.push_back(ex1);
+		ret.m_params.push_back(ex2);
+		return ret;
+	}
+	
+	RegEx operator + (const RegEx& ex1, const RegEx& ex2)
+	{
+		RegEx ret(REGEX_SEQ);
+		ret.m_params.push_back(ex1);
+		ret.m_params.push_back(ex2);
+		return ret;
+	}	
+}
+