broaden the definition of alpha_char! (#1749, #1515, #1591)

2023-03-26 11:10:46 -06:00
parent d85fc7c9f8
commit adc77985d7
1 changed files with 7 additions and 1 deletions
@@ -7,7 +7,13 @@ macro_rules! char_class {
 #[macro_export]
 macro_rules! alpha_char {
    ($c: expr) => {
-        $c.is_alphabetic() || $c == '_'
+        (!$c.is_numeric() &&
+         !$c.is_whitespace() &&
+         !$c.is_control() &&
+         !$crate::graphic_token_char!($c) &&
+         !$crate::layout_char!($c) &&
+         !$crate::meta_char!($c) &&
+         !$crate::solo_char!($c)) || $c == '_'
    };
 }