A fairly major refactor / simplification.

src/syntax/tokens.rs

@@ -23,7 +23,7 @@ pub enum Token {
     #[regex(r"0d[0-9]+", |v| parse_number(Some(10), v))]
     #[regex(r"0x[0-9a-fA-F]+", |v| parse_number(Some(16), v))]
     #[regex(r"[0-9]+", |v| parse_number(None, v))]
-    Number((Option<u8>, i128)),
+    Number((Option<u8>, i64)),
 
     #[regex(r"[a-z][a-zA-Z0-9_]*", |v| ArcIntern::new(v.slice().to_string()))]
     Variable(ArcIntern<String>),
@@ -71,13 +71,13 @@ impl Token {
 fn parse_number(
     base: Option<u8>,
     value: &Lexer<Token>,
-) -> Result<(Option<u8>, i128), ParseIntError> {
+) -> Result<(Option<u8>, i64), ParseIntError> {
     let (radix, strval) = match base {
         None => (10, value.slice()),
         Some(radix) => (radix, &value.slice()[2..]),
     };
 
-    let intval = i128::from_str_radix(strval, radix as u32)?;
+    let intval = i64::from_str_radix(strval, radix as u32)?;
     Ok((base, intval))
 }