From efd42b5e8287ba16dcb60a09c86d6b236918dd7c Mon Sep 17 00:00:00 2001
From: Wesley Moore <wes@wezm.net>
Date: Sun, 16 Jul 2023 16:21:19 +1000
Subject: [PATCH] Handle constants like ONE_TWO_THREE

Fixes #129
---
 src/expression.rs | 2 +-
 src/template.rs   | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/expression.rs b/src/expression.rs
index 0e4f386..a8f6a49 100644
--- a/src/expression.rs
+++ b/src/expression.rs
@@ -55,7 +55,7 @@ pub fn rust_name(input: &[u8]) -> PResult<&str> {
     map_res(
         recognize(pair(
             alt((tag("_"), alpha1)),
-            opt(is_a("_0123456789abcdefghijklmnopqrstuvwxyz")),
+            opt(is_a("_0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")),
         )),
         input_to_str,
     )(input)
diff --git a/src/template.rs b/src/template.rs
index d9cef9f..a68a3fc 100644
--- a/src/template.rs
+++ b/src/template.rs
@@ -241,6 +241,11 @@ mod test {
         check_type_expr("SomeTypeWithRef<'_>");
     }
 
+    #[test]
+    fn multiword_constant() {
+        check_type_expr("ONE_TWO_THREE");
+    }
+
     fn check_type_expr(expr: &str) {
         assert_eq!(type_expression(expr.as_bytes()), Ok((&b""[..], ())));
     }