current revision

ipin/Config.h

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+#ifndef EVALCONFIG_H
+#define EVALCONFIG_H
+
+#include <iostream>
+#include <string>
+#include <fstream>
+#include <unordered_map>
+#include "IPINHelper.h"
+
+class EvalConfig {
+
+private:
+
+	std::unordered_map<std::string, std::string> keyVal;
+
+public:
+
+	EvalConfig() {
+		;
+	}
+
+	/** get the value for the given key */
+	const std::string& get(const std::string& key) {
+		static std::string empty = "";
+		auto it = keyVal.find(key);
+		return (it == keyVal.end()) ? (empty) : (it->second);
+	}
+
+public:
+
+	/** load the given configuration file */
+	void load(const std::string& file) {
+
+		std::ifstream inp(file);
+
+		if (!inp.good()) {throw "error while opening config file " + file;}
+
+
+		std::string line;
+		std::string tmp;
+		while (!inp.eof()) {
+
+			// read the next line (might be empty)
+			std::getline(inp, tmp);
+			if (tmp.empty()) {continue;}
+
+			// in case of \r\n linebreaks, remove the remaining \r (might hereafter be empty)
+			if (tmp.back() == '\r') {tmp.erase(tmp.end()-1);}
+			if (tmp.empty()) {continue;}
+
+			// multiline?
+			bool multiline = false;
+			if (tmp.back() == '\\') {multiline = true; tmp.erase(tmp.end()-1);}
+
+			// attach
+			line += tmp;
+
+			// complete line? -> parse it
+			if (!multiline) {parse(line); line = "";}
+
+		}
+
+		// trailing data
+		parse(line);
+
+		inp.close();
+
+	}
+
+private:
+
+	/** parse one line */
+	void parse(const std::string& line) {
+
+		// check
+		if (line.empty())			{return;}
+		if (line.front() == '[')	{return;}
+
+		// split key and value
+		const size_t pos = line.find(" = ");
+		if (pos == std::string::npos) {throw "something wrong";}
+
+		const std::string key = line.substr(0, pos);
+		const std::string val = line.substr(pos+3);
+
+		// add
+		keyVal[key] = val;
+
+	}
+
+	/** get the eval config.ini filename */
+	std::string getConfigFile() const {
+
+		const std::string folder = IPINHelper::getDataFolder();
+		const std::string file = folder + "it.cnr.isti.steplogger.config.ini";
+		return file;
+
+	}
+
+
+
+};
+
+#endif // EVALCONFIG_H