headers/lexer.h

@@ -4,33 +4,35 @@
 #include <string>
 
 //list of keywords 
+
+//types denoted by the index within the enum class
+//this is so its easy to pass this info to the parser
 enum class Keywords {
-    identifier,
-    integer,
-    floatpnt,
-    string,
-    character,
-    boolean,
-    plus,
-    minus,
-    multiply,
-    divide,
-    l_Paren,
-    r_Paren,
-    l_Brace,
-    r_Brace,
-    l_Brack,
-    r_Brack,
-    semicolon,
-    end_of_file,
-    unknown
+    identifier,     //type 0
+    integer,        //type 1
+    floatpnt,       //type 2
+    string,         //type 3 
+    character,      //type 4
+    boolean,        //type 5
+    plus,           //type 6
+    minus,          //type 7 
+    multiply,       //type 8
+    divide,         //type 9
+    l_Paren,        //type 10
+    r_Paren,        //type 11
+    l_Brace,        //type 12
+    r_Brace,        //type 13
+    l_Brack,        //type 14
+    r_Brack,        //type 15
+    semicolon,      //type 16
+    end_of_file,    //type 17
+    unknown         //type 18
 };
 
 struct Token {
     Keywords type;
     std::string value;
     
-
     Token(Keywords type, std::string value) : type(type), value(value) {}
 };
 

lexerOutput.txt

@@ -0,0 +1,9 @@
+Type: 0, Value: int
+Type: 0, Value: main
+Type: 10, Value: (
+Type: 11, Value: )
+Type: 12, Value: {
+Type: 0, Value: return
+Type: 1, Value: 0
+Type: 16, Value: ;
+Type: 13, Value: }

src/lexer.cpp

@@ -49,7 +49,7 @@ Lexer::Lexer(const std::string &input) {
 
 Token Lexer::getNextToken() {
     while (currentChar != '\0') {
-        std::cout << currentChar << std::endl;
+        //std::cout << currentChar << std::endl;
 
         if (std::isspace(currentChar)) {
             skipWhiteSpace();

src/profaneCompiler.cpp

@@ -5,6 +5,10 @@
 
 #include "/home/mason/code-shit/ProfaneC/headers/lexer.h"
 
+//overloads the << operator to output token type as an integer
+//followed by the token value
+//the integers corrispond to the order defined in the Keywords enum class
+//reference lexer.h for map of token types to indecies
 std::ostream& operator<<(std::ostream& os, const Token& token) {
     os << "Type: " << static_cast<int>(token.type) << ", Value: " << token.value;
     return os;
@@ -44,5 +48,15 @@ int main() {
         std::cout << tokenVec.at(i) << std::endl;
     }
 
+    std::ofstream file_out("/home/mason/code-shit/ProfaneC/lexerOutput.txt");
+
+    if (file_out.is_open()) {
+        for (int i = 0; i < tokenVec.size(); i++) {
+            file_out << tokenVec.at(i) << std::endl;
+        }
+    }
+
+    file_out.close();
+
     return 0;
 }