added argument parsing

1 files changed, 86 insertions, 26 deletions

diff --git a/src/Compiler/Language.java b/src/Compiler/Language.java
index bb7e235..7326d10 100644
--- a/src/Compiler/Language.java
+++ b/src/Compiler/Language.java
@@ -3,38 +3,75 @@ package Compiler;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Paths;
+import java.nio.file.Path;
 import java.util.List;
+import java.util.Base64;
 import java.util.Scanner;
+import java.util.ArrayList;
+import java.io.File;
+import java.io.FileNotFoundException;
 
 //Base class for the interpreter
 public class Language {
+
+    static boolean leaveCFile = false;
     static boolean hadError = false;
-    public static void main(String[] args){
-        //Allow users to input a single line of code
-        //Still needs some work to re-ask for input after each line
-        if (args.length < 1){
-            Scanner input = new Scanner(System.in);
-            String sourceCode = "1";
-            while (sourceCode!=""){
-                System.out.print("Code: ");
-                sourceCode = input.nextLine();
-                runInterpreter(sourceCode, "out");
-                hadError=false;
-            }
-            input.close();
+    static boolean printC = false;
+    static boolean executeAfter = false;
+    static Path sourcefile;
 
-        //Allow users to provide a path to a file as an argument
-        } else if (args.length==1){
-            try {
-                String sourcecode = Files.readString(Paths.get(args[0]));  //Maybe should set charset here
-                runInterpreter(sourcecode, args[0].split("\\.(?=[^\\.]+$)")[0]);
-            } catch (IOException exception){
-                System.out.println("File not found");
+    public static void main(String[] args) {
+
+        try {
+            sourcefile = Paths.get(args[0]);
+        } catch (java.lang.ArrayIndexOutOfBoundsException e) {
+            interactiveMode();
+            return;
+        }
+
+        if (args[0].equals("-h") || args[0].equals("--help")) {
+            System.out.println(getHelpText());
+            return;
+        }
+    
+        if (!(Files.exists(sourcefile))) {
+            System.err.println("Could not find source code path.");
+            return;
+        }
+        
+        String outname = args[0].split("\\.(?=[^\\.]+$)")[0];
+        ArrayList<String> arrayArgs = new ArrayList<>();
+        for (int i = 0; i < args.length; i++) {
+            String arg = args[i];
+            arrayArgs.add(arg);
+            if (arg.equals("-o") || arg.equals("--out")) {
+                try {
+                    outname = args[i + 1];
+                } catch (java.lang.ArrayIndexOutOfBoundsException e) {
+                    System.err.println("Invalid output name provided");
+                    return;
+                }
+            }
+            if (arg.equals("-c") || arg.equals("--keep-c-file")) {
+                leaveCFile = true;
+            }
+            if (arg.equals("-pc") || arg.equals("--print-c")) {
+                printC = true;
+            }
+            if (arg.equals("-e") || arg.equals("--execute")) {
+                executeAfter = true;
             }
+        }
+
+        if (outname.startsWith("-")) {
+            System.err.println("Invalid output name provided");
+            return;
+        }
 
-        } else {
-            System.out.println("Error, argument should be file path");
-            System.exit(64);
+        try {
+            runInterpreter(Files.readString(sourcefile), outname);
+        } catch (IOException e) {
+            e.printStackTrace();
         }
     }
 
@@ -55,19 +92,42 @@ public class Language {
 
         //Translate AST into equivalent C code
         Translator translator = new Translator();
-        List<String> code = translator.compileToC(ast);
+        List<String> code = translator.compileToC(ast, printC);
         if (hadError) return;
 
         //Execute created C code
         ExecuteC cExecutor = new ExecuteC();
-        cExecutor.compileAndExecuteC(code, outName);
+        cExecutor.compileAndExecuteC(code, outName, executeAfter, leaveCFile);
     }
 
-
+    private static void interactiveMode() {
+        Scanner input = new Scanner(System.in);
+            String sourceCode = "1";
+            while (sourceCode!=""){
+                System.out.print("Code: ");
+                sourceCode = input.nextLine();
+                runInterpreter(sourceCode, "out");
+                hadError=false;
+            }
+            input.close();
+    }
+    
     //Basic error reporting
     static void displayError(String message){
         hadError=true;
         System.out.println("An error was encountered");
         System.out.println(message);
     }
+
+    static String getHelpText() {
+        try {
+            byte[] bytes = Base64.getDecoder().decode(helpb64); 
+            return new String(bytes);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return "fjakdfjsd";
+        }
+    }
+
+    static String helpb64 = "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";
 }