From 1d3e2b0146d01cb57bb80e55bb033f47fa63daf1 Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal@nekernel.org>
Date: Sat, 5 Jul 2025 20:51:26 +0200
Subject: feat: `fix/` directory category.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>
---
 examples/cgi/cgi.cc     |   2 +-
 examples/equiv/equiv.cc |   1 -
 examples/fix/fix.cc     |   2 +-
 lib/fix.hpp             | 100 ---------------------------------------------
 lib/fix/parser.hpp      | 106 ++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 108 insertions(+), 103 deletions(-)
 delete mode 100644 lib/fix.hpp
 create mode 100644 lib/fix/parser.hpp
diff --git a/examples/cgi/cgi.cc b/examples/cgi/cgi.cc
index a0294ab..5586410 100644
--- a/examples/cgi/cgi.cc
+++ b/examples/cgi/cgi.cc
@@ -14,7 +14,7 @@ const std::string g_not_found = R"(
 <html>
 <head>
   <meta charset="UTF-8">
-  <title>Uh Oh!</title>
+  <title>error | snu-lib</title>
   <style>
     body {
       font-family: monospace;
diff --git a/examples/equiv/equiv.cc b/examples/equiv/equiv.cc
index 1b7b042..664602e 100644
--- a/examples/equiv/equiv.cc
+++ b/examples/equiv/equiv.cc
@@ -5,7 +5,6 @@
  */
 
 #include <lib/equiv.hpp>
-#include <lib/fix.hpp>
 #include <iostream>
 
 /* finally test it */
diff --git a/examples/fix/fix.cc b/examples/fix/fix.cc
index 1ab258e..9b983de 100644
--- a/examples/fix/fix.cc
+++ b/examples/fix/fix.cc
@@ -4,7 +4,7 @@
   licensed under the MIT license
  */
 
-#include <lib/fix.hpp>
+#include <lib/fix/parser.hpp>
 #include <iostream>
 
 /* finally test it */
diff --git a/lib/fix.hpp b/lib/fix.hpp
deleted file mode 100644
index 4620ad0..0000000
--- a/lib/fix.hpp
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * File: fix.hpp
- * Purpose: Financial Information Protocol implementation in C++.
- * Author: Amlal El Mahrouss (founder@snu.systems)
- * Copyright 2025, Amlal El Mahrouss and SNU Systems Corp all rights reserved.
- */
-
-#ifndef _SNU_FIX_HPP
-#define _SNU_FIX_HPP
-
-#include <cstdint>
-#include <cstddef>
-#include <cassert>
-#include <utility>
-#include <vector>
-#include <string>
-#include <arpa/inet.h>
-#include <sys/socket.h>
-
-namespace snu::fix
-{
-	struct fix_visitor;
-	struct fix_range;
-	struct fix_range_data;
-
-	/// @brief Buffer+Length structure
-	typedef fix_range* fix_range_ptr_t;
-
-	struct fix_range final
-	{
-		char*	 ascii_bytes_;
-		uint16_t length_;
-	};
-
-	/// @brief Convert range to usable string.
-	inline std::string to_string(fix_range& range) noexcept
-	{
-		if (range.length_ < 0)
-			return "";
-
-		return std::string(range.ascii_bytes_, range.length_);
-	}
-
-	class fix_range_data final
-	{
-	public:
-		std::string										 msg_magic_;
-		std::size_t										 msg_body_len_;
-		std::vector<std::pair<std::string, std::string>> msg_body_;
-	};
-
-	class fix_visitor final
-	{
-	public:
-		static constexpr auto soh  = '|';
-		static constexpr auto base = 10U;
-
-		fix_range_data visit(const std::string& in)
-		{
-			fix_range_data ret{};
-
-			std::string in_tmp;
-
-			try
-			{
-				for (auto& ch : in)
-				{
-					if (ch != soh)
-					{
-						in_tmp += ch;
-						continue;
-					}
-
-					auto key = in_tmp.substr(0, in_tmp.find("="));
-					auto val = in_tmp.substr(in_tmp.find("=") + 1);
-
-					if (ret.msg_magic_.empty())
-					{
-						ret.msg_magic_ = val;
-					}
-					else
-					{
-						ret.msg_body_.emplace_back(std::make_pair(key, val));
-						ret.msg_body_len_ += in_tmp.size();
-					}
-
-					in_tmp.clear();
-				}
-			}
-			catch (...)
-			{
-				return {};
-			}
-
-			return ret;
-		}
-	};
-} // namespace snu::fix
-
-#endif // ifndef _SNU_FIX_HPP
diff --git a/lib/fix/parser.hpp b/lib/fix/parser.hpp
new file mode 100644
index 0000000..83bbd1a
--- /dev/null
+++ b/lib/fix/parser.hpp
@@ -0,0 +1,106 @@
+/*
+ * File: fix.hpp
+ * Purpose: Financial Information Protocol implementation in C++.
+ * Author: Amlal El Mahrouss (founder@snu.systems)
+ * Copyright 2025, Amlal El Mahrouss and SNU Systems Corp all rights reserved.
+ */
+
+#ifndef _SNU_FIX_HPP
+#define _SNU_FIX_HPP
+
+#include <cstdint>
+#include <cstddef>
+#include <cassert>
+#include <utility>
+#include <vector>
+#include <string>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+
+namespace snu::fix
+{
+	struct fix_visitor;
+	struct fix_range;
+	struct fix_range_data;
+
+	/// @brief Buffer+Length structure
+	typedef fix_range* fix_range_ptr_t;
+
+	struct fix_range final
+	{
+		char*	 ascii_bytes_;
+		uint16_t length_;
+	};
+
+	/// @brief Convert range to usable string.
+	inline std::string to_string(fix_range& range) noexcept
+	{
+		if (range.length_ < 0)
+			return "";
+
+		return std::string(range.ascii_bytes_, range.length_);
+	}
+
+	class fix_range_data final
+	{
+	public:
+		std::string										 msg_magic_;
+		std::size_t										 msg_body_len_;
+		std::vector<std::pair<std::string, std::string>> msg_body_;
+	};
+
+	class fix_visitor final
+	{
+	public:
+		static constexpr auto soh  = '|';
+		static constexpr auto base = 10U;
+
+		explicit fix_visitor() = default;
+		~fix_visitor()		  = default;
+
+		fix_visitor& operator=(const fix_visitor&) = default;
+		fix_visitor(const fix_visitor&)			 = default;
+
+		fix_range_data visit(const std::string& in)
+		{
+			fix_range_data ret{};
+
+			std::string in_tmp;
+
+			try
+			{
+				for (auto& ch : in)
+				{
+					if (ch != soh)
+					{
+						in_tmp += ch;
+						continue;
+					}
+
+					auto key = in_tmp.substr(0, in_tmp.find("="));
+					auto val = in_tmp.substr(in_tmp.find("=") + 1);
+
+					if (ret.msg_magic_.empty())
+					{
+						ret.msg_magic_ = val;
+					}
+					else
+					{
+						ret.msg_body_.emplace_back(std::make_pair(key, val));
+						ret.msg_body_len_ += in_tmp.size();
+					}
+
+					in_tmp.clear();
+				}
+			}
+			catch (...)
+			{
+				return {};
+			}
+
+			return ret;
+		}
+	};
+} // namespace snu::fix
+
+#endif // ifndef _SNU_FIX_HPP
-- 
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