fix: allow numbers in the modifiers

crates/tailwind-parse/src/expression.rs

@@ -2,7 +2,7 @@ use nom::{
     bytes::complete::take_while1,
     character::{
         complete::{char, space0},
-        is_alphabetic,
+        is_alphabetic, is_alphanumeric,
     },
     combinator::{opt, verify},
     multi::many0,
@@ -37,12 +37,7 @@ pub enum ExpressionConversionError<'a> {
 
 impl<'a> Expression<'a> {
     pub fn parse(s: NomSpan<'a>) -> IResult<NomSpan<'a>, Self, nom::error::Error<NomSpan<'a>>> {
-        let single_mod = {
-            let single_mod = take_while1(|c| is_alphabetic(c as u8) || c == '-');
-            let start_letter =
-                |s: &NomSpan<'a>| is_alphabetic(s.chars().next().expect("not empty") as u8);
-            verify(single_mod, start_letter)
-        };
+        let single_mod = take_while1(|c| is_alphanumeric(c as u8) || c == '-');
 
         let mods = many0(terminated(single_mod, char(':')));
         let negative = opt(char('-')).map(|o| o.is_some());

crates/tailwind-parse/src/lib.rs

@@ -98,6 +98,7 @@ mod test {
     }
 
     #[test_case("text-lg p-4" ; "basic")]
+    #[test_case("2xl:text-right" ; "2xl modifier")]
     #[test_case("border-b-4 p-4" ; "with subcommand")]
     #[test_case("   p-4    border-4" ; "when a statement has irregular gaps")]
     #[test_case("dash-modifier:p-4" ; "when a modifier has a dash in it")]
@@ -150,7 +151,6 @@ mod test {
 
     #[should_panic]
     #[test_case("-mod:sub" ; "when the minus is in the wrong place")]
-    #[test_case("m0d:p-4" ; "when modifier has a number")]
     #[test_case("()" ; "rejects empty group")]
     fn parse_failure_tests(s: &str) {
         let (rest, d) = Directive::parse(LocatedSpan::new_extra(s, DUMMY_SP)).unwrap();