From bfb9d87c95f622c6a21fb3e1f86e2b42fd90675f Mon Sep 17 00:00:00 2001
From: jakcron <jkrcarr@gmail.com>
Date: Sun, 15 Apr 2018 10:38:58 +0800
Subject: [PATCH] [fnd] Add ResourceFileReader. This reads simple <key>=<value>
 files.

---
 lib/libfnd/include/fnd/ResourceFileReader.h | 22 +++++++
 lib/libfnd/source/ResourceFileReader.cpp    | 64 +++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 lib/libfnd/include/fnd/ResourceFileReader.h
 create mode 100644 lib/libfnd/source/ResourceFileReader.cpp

diff --git a/lib/libfnd/include/fnd/ResourceFileReader.h b/lib/libfnd/include/fnd/ResourceFileReader.h
new file mode 100644
index 0000000..ed9eb05
--- /dev/null
+++ b/lib/libfnd/include/fnd/ResourceFileReader.h
@@ -0,0 +1,22 @@
+#pragma once
+#include <string>
+#include <map>
+
+namespace fnd
+{
+	class ResourceFileReader
+	{
+	public:
+		ResourceFileReader();
+
+		void processFile(const std::string& path);
+
+		bool doesExist(const std::string& key) const;
+		const std::string& operator[](const std::string& key);
+		
+	private:
+		const std::string kModuleName = "ResourceFileReader";
+
+		std::map<std::string,std::string> mResources;
+	};
+}
diff --git a/lib/libfnd/source/ResourceFileReader.cpp b/lib/libfnd/source/ResourceFileReader.cpp
new file mode 100644
index 0000000..956dde6
--- /dev/null
+++ b/lib/libfnd/source/ResourceFileReader.cpp
@@ -0,0 +1,64 @@
+#include <fnd/types.h>
+#include <fnd/ResourceFileReader.h>
+#include <fstream>
+#include <algorithm>
+#include <iostream>
+
+fnd::ResourceFileReader::ResourceFileReader()
+{
+}
+
+inline bool isNotPrintable(char chr) { return isprint(chr) == false; }
+
+void fnd::ResourceFileReader::processFile(const std::string& path)
+{
+	std::ifstream file;
+	file.open(path, std::ios::in);
+	if (file.is_open() == false)
+	{
+		throw fnd::Exception(kModuleName, "Failed to open file");
+	}
+
+	std::string line, key, value;
+	while (std::getline(file, line))
+	{
+		// read up to comment line
+		if (line.find(";") != std::string::npos)
+			line = line.substr(0, line.find(";"));
+
+		// change chars to lower string
+		std::transform(line.begin(), line.end(), line.begin(), ::tolower);
+
+		// strip whitespace
+		line.erase(std::remove(line.begin(), line.end(), ' '), line.end());
+
+		// strip nonprintable
+		line.erase(std::remove_if(line.begin(), line.end(), isNotPrintable), line.end());
+
+		// skip lines that don't have '='
+		if (line.find("=") == std::string::npos)
+			continue;
+
+		key = line.substr(0,line.find("="));
+		value = line.substr(line.find("=")+1);
+
+		// skip if key or value is empty
+		if (key.empty() || value.empty())
+			continue;
+
+		//std::cout << "[" + key + "]=(" + value + ")" << std::endl;
+
+		mResources[key] = value;
+	}
+	file.close();
+}
+
+bool fnd::ResourceFileReader::doesExist(const std::string& key) const
+{
+	return (mResources.find(key) != mResources.end());
+}
+
+const std::string& fnd::ResourceFileReader::operator[](const std::string& key)
+{
+	return mResources[key];
+}
\ No newline at end of file