Initial Commit

compile

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+#!/bin/bash
+
+g++ parser.cpp lexer.cpp main.cpp -o main

lexer.cpp

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+#include <stdio.h>
+#include <iostream>
+#include <fstream>
+#include "lexer.h"
+
+char c;
+FILE* input_file;
+
+Lexer::Lexer(std::string &file_name) {
+    input_file = fopen(file_name.c_str(),"r");
+    if(input_file == nullptr) {
+        std::cout << "[Error] Script " << input_file << " could not be read\n";
+        exit(1);
+    } 
+
+    c = getc(input_file);
+    if (c == EOF) {
+        //do something related to eof here?
+        fclose(input_file);
+    }
+}
+
+char nextChar() {
+    if (c != EOF) {
+        c = getc(input_file);
+    } else {
+        c = EOF;
+    }
+    return c;
+}

lexer.h

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+#include <iostream>
+
+#ifndef LEXER_H
+#define LEXER_H
+
+class Lexer
+{
+    private:
+        std::string extension = ".prog";
+    public:
+        Lexer(std::string &file_name);
+};
+
+#endif

main.cpp

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+#include <stdio.h>
+#include <iostream>
+#include <vector>
+
+#include "lexer.h"
+
+int main(int argc, char *argv[]) {
+    if (argc > 1) {
+        std::string file_name(argv[1]);
+        Lexer lex(file_name);
+    } else {
+        std::cout << "[Error] No input file provided\n";
+    }
+    return 0;
+}

parser.cpp

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+#include <stdio.h>
+#include <iostream>
+
+#include "parser.h"
+
+Parser::Parser(std::string input_file) {
+
+}

parser.h

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+#include <iostream>
+
+#ifndef PARSER_H
+#define PARSER_H
+
+class Parser
+{
+    private:
+
+    public:
+        Parser(std::string input_file);
+};
+
+#endif

script.prog

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+hello world, this is a lexer test
+hello world
+Kanye's new name is Ye