New version

include/Parse.hpp

@@ -0,0 +1,67 @@
+// https://github.com/mfichman/http
+
+#pragma once
+
+#include <string>
+
+namespace std::net
+{
+	template <typename T>
+	class ParseResult 
+	{
+	public:
+		T value;
+		char const* ch;
+	};
+
+	template <typename F>
+	static ParseResult<std::string> ParseUntil(char const* str, F func)
+	{
+		ParseResult<std::string> result{};
+		char const* ch = str;
+		for (; *ch && !func(*ch); ++ch)
+		{
+		}
+
+		result.value = std::string(str, ch - str);
+		result.ch = ch;
+		return result;
+	}
+
+	template <typename F>
+	static inline ParseResult<std::string> ParseWhile(char const* str, F func) 
+	{
+		ParseResult<std::string> result{};
+		char const* ch = str;
+		for (; *ch && func(*ch); ++ch) 
+		{
+		}
+
+		result.value = std::string(str, ch - str);
+		result.ch = ch;
+		return result;
+	}
+
+	static inline ParseResult<std::string> ParseToken(char const* str) 
+	{
+		auto token = ParseUntil(str, isspace);
+		token.ch = ParseWhile(token.ch, isspace).ch;
+		return token;
+	}
+
+	static inline ParseResult<std::string> parseCrLf(char const* str) 
+	{
+		auto cr = ParseUntil(str, [](char ch) { return ch == '\r'; });
+		if (*cr.ch == '\r')
+			cr.ch++;
+		return ParseWhile(cr.ch, [](char ch) 
+		{ 
+			return isspace(ch) && ch != '\r'; 
+		});
+	}
+
+	static inline ParseResult<std::string> ParseWhitespace(char const* str) 
+	{
+		return ParseWhile(str, isspace);
+	}
+}