Reintroducing meta tokens

example.mlc

@@ -1,6 +1,3 @@
-#with mathlib.mlc
 variable:=-3; c := (a+b- 3) * 23 + variable; d := c - a;Natural : Number (n) := {n >= 0};faculty : Natural (n) -> Natural := if n = 0 then 1 else faculty (n-1) * n end;
 String Natural (n) := {Character * n};hello_word -> String := "Hello World!";
 first_letter -> Character := 'a';
-wrong -> Logic := false;date -> String := "#date_now";
-user -> String := "#user"

src/main.rs

@@ -6,8 +6,51 @@ mod tokenizer;
 use tokenizer::*;
 
 fn main() {
-    // Preprocessor
+    // CL-Wrapper
-    let sample_code: String = std::fs::read_to_string("example.mlc").unwrap();
+    let args: Vec<String> = std::env::args().collect();
+
+    // Adjust to following principle:
+    //  micro [-t <target>] [-l <language.toml>] [<list of source files>]
+    //  -t default: first found
+    //  -l default: language.toml
+    //
+    //  Either loads all source files or takes stdin input by piping code into the program
+    let mut raw_source_code: String = String::from("");
+    for i in 1..args.len() {
+        raw_source_code = raw_source_code
+            + std::fs::read_to_string(args[i].clone())
+                .expect("Source file not found!")
+                .as_str();
+    }
+
+    // Load language toml
+    let mut meta_rules: crate::preprocessor::MetaRules =
+        crate::preprocessor::MetaRules::new("./language.toml");
+    let mut tokenizer_configuration: Tokenizer = Tokenizer::new();
+    tokenizer_configuration.read_configuration_from_file("./language.toml");
+
+    // Run preprocessor
+    let preprocessed_source_code: String = meta_rules.process(raw_source_code);
+
+    // Tokenizing
+    tokenizer_configuration.eat(preprocessed_source_code.as_str());
+    tokenizer_configuration.identify_tokens();
+    //   Reintroducing meta_tokens
+    for meta_token in meta_rules.special_tokens.iter() {
+        // Go through all tokens
+        for i in 0..tokenizer_configuration.tokens.len() {
+            if meta_token.0 == tokenizer_configuration.tokens[i].token {
+                tokenizer_configuration.tokens[i] = meta_token.1.clone();
+                break;
+            }
+        }
+    }
+
+    // Syntax resolving
+
+    // Apply translation
+
+    /* let sample_code: String = std::fs::read_to_string("example.mlc").unwrap();
     let mut example_tokenizer: Tokenizer = Tokenizer::new();
     let mut meta_rules: crate::preprocessor::MetaRules =
         crate::preprocessor::MetaRules::new("./language.toml");
@@ -31,5 +74,5 @@ fn main() {
 
     for token in example_identifier.tokens.iter() {
         print!("{}", token.token);
-    }
+    } */
 }

src/preprocessor.rs

@@ -172,7 +172,6 @@ impl MetaRules {
             processed_code = value_regex
                 .replace(processed_code.as_str(), meta_id.as_str())
                 .to_string();
-            println!("Replace {} with {}.", meta_value, meta_id);
 
             // Safe id and token
             self.special_tokens.push((

src/tokenizer.rs

@@ -1,7 +1,7 @@
 use std::fs;
 use toml::{Table, Value};
 
-#[derive(PartialEq)]
+#[derive(PartialEq, Debug)]
 pub enum TokenType {
     OPERAND,
     TERMINATOR,
@@ -21,10 +21,27 @@ pub struct Tokenizer {
 
 // Token
 // This is a token with a token type.
+#[derive(Debug)]
 pub struct Token {
     pub token: String,
     pub token_type: TokenType,
 }
+
+impl Clone for Token {
+    fn clone(&self) -> Token {
+        let token_type: TokenType = match self.token_type {
+            TokenType::OPERAND => TokenType::OPERAND,
+            TokenType::KEYWORD => TokenType::KEYWORD,
+            TokenType::TERMINATOR => TokenType::TERMINATOR,
+            TokenType::IDENTIFIER => TokenType::IDENTIFIER,
+        };
+        Token {
+            token: self.token.clone(),
+            token_type: token_type,
+        }
+    }
+}
+
 // Implementation of Tokenizer
 // Functions associated with the tokenizer struct and module.
 impl Tokenizer {