lab2

src/main.rs

@@ -1,3 +1,43 @@
-fn main() {
-    println!("Hello, world!");
+use std::io;
+use std::io::Write;
+
+use parse::token::Token;
+use symbols::SymbolsTable;
+
+mod cli;
+mod parse;
+mod symbols;
+
+fn main() -> anyhow::Result<()> {
+    let args = cli::Args::parse();
+
+    let input = std::fs::read_to_string(&args.input).unwrap();
+    let tokens = parse::lexer::make_tokenizer(&input).collect::<Result<Vec<_>, _>>();
+    match tokens {
+        Ok(tokens) => {
+            let symbols = SymbolsTable::from(tokens.iter().map(|(_, token, _)| token));
+            let mut writer_tokens = io::BufWriter::new(std::fs::File::create(&args.output_tokens)?);
+
+            for (_, token, _) in tokens {
+                match token {
+                    Token::Name(ref name) => match symbols.get(name) {
+                        Some(id) => writeln!(writer_tokens, "{token} ({id})")?,
+                        None => writeln!(writer_tokens, "{token} (undefined)")?,
+                    },
+                    _ => writeln!(writer_tokens, "{token}")?,
+                }
+            }
+
+            let mut writer_symbols =
+                io::BufWriter::new(std::fs::File::create(&args.output_symbols)?);
+            for (name, id) in &symbols {
+                writeln!(writer_symbols, "{name} -> {id}")?;
+            }
+        }
+        Err(err) => {
+            eprintln!("error: {err}");
+        }
+    }
+
+    Ok(())
 }