added more states

Exercise 2/C/TestLexer.c

@@ -2,15 +2,37 @@
 #include "Lexer.h"
 
 int start(char* sourcecode) {
-    if (sourcecode != NULL) {
-        return _GET_NEXT_CHARACTER_;
-    } else {
-        return _STOP_;
+    // if (sourcecode != NULL) {
+    //     return _GET_NEXT_CHARACTER_;
+    // } else {
+    //     return _STOP_;
+    // }
+
+    return _STOP_; // placeholder
 }
+
+int getNextCharacter() {
+    return _STOP_; // placeholder
+}
+
+int readIdentifier() {
+    return _STOP_; // placeholder
+}
+
+int readNumLit() {
+    return _STOP_; // placeholder
+}
+
+int readOperator() {
+    return _STOP_; // placeholder
+}
+
+int readPunctuation() {
+    return _STOP_; // placeholder
 }
 
 int main() {
-    char* sourcecode = "Hello World the second - I coded this before. So yeah, FOXES ARE SUPERIOR.\nBut the professor wants us to write the following: \"index = 2 * count + 42;\"";
+    char* sourcecode = "Hello World the second - I coded this before. So yeah, FOXES ARE SUPERIOR.\nBut the professor wants us to write the following: \"index = 2 * count + 42;\"\n\n";
     printf(sourcecode);
 
     int lexer_state = _START_;
@@ -19,9 +41,27 @@ int main() {
             case _START_:
                 lexer_state = start(sourcecode);
                 break;
+            case _GET_NEXT_CHARACTER_:
+                lexer_state = getNextCharacter();
+                break;
+            case _READ_IDENTIFIER_:
+                lexer_state = readIdentifier();
+                break;
+            case _READ_NUM_LIT_:
+                lexer_state = readNumLit();
+                break;
+            case _READ_OPERATOR_:
+                lexer_state = readOperator();
+                break;
+            case _READ_PUNCTUATION_:
+                lexer_state = readPunctuation();
+                break;
             default: lexer_state = _ERROR_;
         }
     } while (lexer_state != _STOP_);
 
+    printf("Lexer exited with code ");
+    // printf(lexer_state);
+
     return 0;
 }