Add files via upload

Added project files

src/Directory.cpp

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+#include "Directory.h"
+
+Directory::Directory(std::string pathname)
+	: pathname_m(pathname)
+{
+	dir = opendir(pathname_m.c_str());
+}
+Directory::~Directory()
+{
+	closedir(dir);
+}
+dirent* Directory::read()
+{
+	ent = readdir(dir); return ent;
+}
+std::string Directory::name() 
+{	
+	return ent->d_name;
+}
+Types Directory::type() 
+{
+	return ((ent->d_type == 4) ? Types::DIR : Types::FILE);
+}
+
+

src/Directory.h

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+#ifndef DIRECTORY_H
+#define DIRECTORY_H
+
+#include <string>
+#include <dirent.h>
+
+enum class Types
+{
+	DIR,
+	FILE,
+};
+
+class Directory
+{
+private:
+	DIR *dir;
+	const std::string pathname_m;
+	dirent *ent;
+public:
+	Directory(std::string pathname);
+	~Directory();
+	
+	/* Class functions */
+	dirent* read();
+	std::string name();
+	Types type();
+};
+
+#endif
+

src/Main.cpp

@@ -0,0 +1,105 @@
+/* Program to navigate directories */
+#include <iostream>
+#include <fstream> //file I/O
+#include <string>
+#include <map>
+#include <unistd.h> //for get_current_dir() and chdir()
+#include "Directory.h"
+
+typedef std::string str_t;
+typedef std::pair<int, str_t> pair_t;
+typedef std::map<int, str_t> pairmap_t;
+
+/* Clearing the tty */
+#define CLEAR (std::cout << "\033[2J\033[;H") // \033[2J\033[;H is an ANSI escape sequence to clear the screen, ANSI is supported on most OS's
+
+
+pairmap_t /* Returns a std::map, constructed like the following: <index, file_name>*/
+display_directory_content()
+{
+	//chdir(path.c_str());
+	Directory dir(get_current_dir_name());
+	int count=1;
+	
+	pairmap_t content_map;
+	std::cout << "* Viewing contents of " << get_current_dir_name() << " *\n\n";
+	
+	while ((dir.read()) != NULL)
+	{
+		if (dir.type() == Types::DIR) 
+		{
+			str_t dir_name = "/" + dir.name() + "/";
+			std::cout << "* " << count << ": " << dir_name << '\n'; /* Prepend directories with slash */
+			content_map.insert(pair_t( count, dir_name ));
+		} 									
+		else if (dir.type() == Types::FILE) 
+		{
+			std::cout << "* " << count << ": " << dir.name() << '\n';
+			content_map.insert(pair_t( count, dir.name() ));
+		}
+		count++;
+	}
+	
+	return content_map;
+}
+
+void 
+display_file_content(const str_t file_name) /* Displays the content of a file */
+{
+	std::cout << "* Viewing contents of " << file_name << " *\n\n";
+	std::ifstream file(file_name);
+	
+	if (file)
+	{
+		str_t line;
+		while (getline(file, line))
+			std::cout << line << "\n";
+	}
+	else std::cerr << "* Error viewing contents of " << file_name << " *\n";
+}
+
+int
+main(int argc, char *argv[])
+{
+	if (!argv[1])
+		chdir( get_current_dir_name() ) ; /* If argv is not specified we will then view the contents of current working directory */
+	else chdir(argv[1]);
+	
+	CLEAR;
+	pairmap_t map = display_directory_content();
+	
+	/* Program loop */
+	while (true)
+	{
+		std::cout << "\nNavigate directory (0 to quit): ";
+		unsigned option;
+		std::cin >> option;
+		
+		if ( option == 0 ) break;
+		if ( option > map.size() ) {std::cerr << "Invalid input"; continue;}
+		
+		if ( map[option][0] != '/' ) { /* If it doesn't start with a '/', we know it's a file */
+			CLEAR;
+			display_file_content(map[option]);
+			
+			{
+				str_t temp;
+				std::cout << "Return (\\n)";
+				std::cin.ignore(); //Flush newline char
+				getline(std::cin, temp);
+			}
+			
+			CLEAR;
+			display_directory_content();
+			continue;
+		}
+		else 
+		{
+			str_t path = get_current_dir_name() + map [option]; chdir( path.c_str() ); //Change current directory
+			CLEAR;
+			map = display_directory_content();
+		}
+	}
+	
+	return 0;
+}

src/compile.sh

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+#!/bin/bash
+g++ -c Directory.cpp -o Directory.o
+g++ Main.cpp Directory.o -o File-viewer
+