*dies of die*

.gitignore

@@ -1,3 +1,5 @@
 .ccls-cache/
 .vscode/
 build/
+test.x
+out.asm

documentation/Basics.md

@@ -5,7 +5,7 @@ A short and relatively detailed list of all the basics of XILANG. Also yes, the
 ## Extremly Basic Functions
 
 * `ret` then a value (can be a numeral or a string) will return that value
-* `func` then a name (ex: `func main() {}`) allows you to define a new function
+* `func` then a name (ex: `func main() {};`) allows you to define a new function
 * `import` and a filename (either in `""` or `<>` depending on if it is a local file in the dir or a file from the include path, similar to C) allows you to import the functions from another file (ex: `import Example.xh`)
 * `print` then a value will allow to print a character or string to the screen (you can also print any other type of varible)
 
@@ -21,7 +21,8 @@ you define something by doing the type of var you want to define then a name the
 
 ## Ifs and Loops
 
-* `if` is pretty simple its just `if x = y {do this}`
+* `if` is pretty simple its just `if x = y {do this};`
+* `else` if's best friend! simple as `if x = y {}; else {};`
 * `loop` is a bit more... dangerous. you can loop... well... basically forever if you were to... forget the value... `loop 100 {print "This"}` or `loop {print "This"}` are both valid ways to use loop, one does the same thing 100 times the other does it until your CPU stops CPUing.
 * `while` does something while something is true, for example `while x = 1 {print "This"}` or `while x > 1 {print "This"}`
 

examples/return.s

@@ -1,7 +1,7 @@
 ;This is a comment
 
 global _start
-_start:
+start:
     mov rax, 60
     mov rsi, 0
     syscall

examples/return.x

@@ -2,4 +2,4 @@
 
 func main() {
     ret 0;
-}
+};

src/main.cxx

@@ -1,22 +1,108 @@
 #include <iostream>
 #include <fstream>
 #include <sstream>
+#include <optional>
+#include <vector>
 
 #define version "RD-00002"
 
 #define EXIT_FAILURE 1
 #define EXIT_SUCCESS 0
 
+const char *output_filename = "out.asm";
+
+enum class TokenType {
+    ret,
+    int_lit,
+    semicolon,
+    comment
+};
+
+struct Token {
+    TokenType type;
+    std::optional<std::string> value {};
+};
+
+std::vector<Token> Tokenize(const std::string& str) {
+    std::vector<Token> Tokens;
+
+    std::string buffer {};
+    for (int i = 0; i < str.length(); i++) {
+        char c = str.at(i);
+        if (std::isalpha(c)) {
+            buffer.push_back(c);
+            i++;
+            while (std::isalnum(str.at(i))) {
+                buffer.push_back(str.at(i));
+                i++;
+            }
+            i--;
+
+            if (buffer == "ret") { // return func checkor
+                Tokens.push_back({.type = TokenType::ret});
+                buffer.clear();
+                continue;
+            }
+        } else if (std::isdigit(c)) {
+            buffer.push_back(c);
+            i++;
+            while (std::isdigit(str.at(i))) {
+                buffer.push_back(str.at(i));
+                i++;
+            }
+            i--;
+            Tokens.push_back({.type = TokenType::int_lit, .value = buffer});
+            buffer.clear();
+        }
+        else if (c == ';') { // legit only checks for a semicolon
+            Tokens.push_back({.type = TokenType::semicolon});
+        }
+        else if (std::isspace(c)) {
+            continue;
+        }
+    }
+
+    return Tokens;
+}
+
+std::string Tokens_To_Asm(const std::vector<Token>& Tokens) {
+    std::stringstream output;
+    output << "global _start\nstart:\n";
+    for (int i = 0; i < Tokens.size(); i++) {
+        const Token& Token = Tokens.at(i);
+        if (Token.type == TokenType::ret) {
+            if (i + 1 < Tokens.size() && Tokens.at(i+1).type == TokenType::int_lit) {
+                if (i + 2 < Tokens.size() && Tokens.at(i+2).type == TokenType::semicolon) {
+                    output << "    mov rax, 60\n";
+                    output << "    mov rdi, " << Tokens.at(i+1).value.value() << "\n";
+                    output << "    syscall";
+                }
+            }
+        }
+    }
+    return output.str();
+}
+
 int main(int argC, char *argV[]) {
     if(argC > 2) {
         std::cerr << "Usage: xic [OPTIONS] [INPUT FILE]\n" << std::endl;
         return EXIT_FAILURE;
     }
 
-    std::fstream input(argV[1], std::ios::in);
+    std::string contents;
+    {
         std::stringstream contents_stream;
+        std::fstream input(argV[1], std::ios::in);
         contents_stream << input.rdbuf();
-    input.close();
-
-    return 0;
+        contents = contents_stream.str();
+    }
+
+    std::vector<Token> Tokens = Tokenize(contents);
+
+    {
+        std::fstream file(output_filename, std::ios::out);
+        file << Tokens_To_Asm(Tokens);
+    }
+
+    return EXIT_SUCCESS;
 }