remove namespace errors

src/error.hpp

@@ -2,8 +2,6 @@
 
 #include <exception>
 
-using namespace std;
-
 enum class ErrType {
     Success,
     BracketMismatch,
@@ -11,7 +9,7 @@ enum class ErrType {
     Something
 };
 
-class ParseExcept: public exception {
+class ParseExcept: public std::exception {
 public:
     ErrType err;
 

src/lex.cpp

@@ -7,14 +7,12 @@
 #include "error.hpp"
 #include "lex.hpp"
 
-using namespace std;
-
 void Lexer::printCode() {
-    cout << bf << endl;
+    std::cout << bf << std::endl;
 }
 
-vector<OpCode> Lexer::lexCode() {
-    vector<OpCode> v;
+std::vector<OpCode> Lexer::lexCode() {
+    std::vector<OpCode> v;
 
     for (auto c : bf) {
         switch(c) {

src/lex.hpp

@@ -8,9 +8,7 @@
 #include "brainfuck.hpp"
 #include "error.hpp"
 
-using namespace std;
-
-typedef string BFProgram;
+typedef std::string BFProgram;
 
 class Lexer {
 public:
@@ -23,7 +21,7 @@ public:
     }
 
     void printCode();
-    vector<OpCode> lexCode();
+    std::vector<OpCode> lexCode();
 private:
     BFProgram bf;
 };

src/main.cpp

@@ -1,27 +1,29 @@
+#include <fstream>
 #include <iostream>
+#include <sstream>
+#include <string>
 #include <vector>
 
 #include "brainfuck.hpp"
 #include "error.hpp"
 #include "lex.hpp"
-#include "read.hpp"
 
-using namespace std;
+std::string getFile(std::string filename) {
+    std::ifstream file{filename.c_str()};
+    std::stringstream ss;
+    ss << file.rdbuf();
+    return ss.str();
+}
 
 int main(int argc, char* argv[]) {
-    std::vector<string> argList;
-    for (int i = 0; i < argc; i++) {
-        argList.push_back(argv[i]);
+    std::vector<std::string> args{argv + 1, argv + argc};
+    if (args.size() == 0) {
+        return 1;
     }
 
-    if (argc == 2) { // must have only 1 arg: file
-        Reader r(argList[1]);
-        Lexer lex(r.getFile());
+    Lexer lex{getFile(args[0])};
 
-        vector<OpCode> v = lex.lexCode();
+    std::vector<OpCode> v = lex.lexCode(); // this works, yay
 
-        return 0;
-    } else {
-        return 1;
-    }
+    return 0;
 }

src/read.cpp

@@ -1,16 +0,0 @@
-#include <iostream>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include "read.hpp"
-
-using namespace std;
-
-void Reader::printFile() {
-    cout << contents << endl;
-}
-
-string Reader::getFile() {
-    return contents;
-}

src/read.hpp

@@ -1,47 +0,0 @@
-#pragma once
-
-#include <fstream>
-#include <iostream>
-#include <sstream>
-#include <streambuf>
-#include <string>
-
-#include "error.hpp"
-
-using namespace std;
-
-class Reader {
-public:
-    Reader(void) {
-        throw ParseExcept(ErrType::NoInput);
-    }
-
-    Reader(string filename) {
-        if (filename == "-") { // stdin
-            for (string line; std::getline(cin, line);) {
-                if (line != "done.") {
-                    contents.append(line);
-                } else {
-                    break;
-                }
-            }
-        } else { 
-            ifstream code(filename);
-
-            if (!code) {
-                throw ParseExcept(ErrType::NoInput);
-            } else {
-                std::string str((std::istreambuf_iterator<char>(code)),
-                                 std::istreambuf_iterator<char>());
-                contents = str;
-            }
-
-            code.close();
-        }
-    }
-
-    void printFile(); 
-    string getFile();
-private:
-    string contents = "";
-};