From 0b17d6cef7bc2caec318815f191ce2a5fdfed5fe Mon Sep 17 00:00:00 2001
From: Maxim Svistunov <makssvistunov@gmail.com>
Date: Mon, 5 Feb 2024 13:36:36 +0100
Subject: [PATCH] Improve identifier parsing checks

---
 parser/src/parsing/common.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/parser/src/parsing/common.rs b/parser/src/parsing/common.rs
index 3c9a585..9d9aef6 100644
--- a/parser/src/parsing/common.rs
+++ b/parser/src/parsing/common.rs
@@ -17,7 +17,10 @@ pub fn parse_identifier(input: &str) -> IResult<&str, &str> {
     let (_, first) = peek(anychar)(input)?;
     if first.is_alphabetic() || first == '_' {
         take_while(|c: char| {
-            is_alphanumeric(c as u8) || c == '_'
+            match c {
+                'a'..='z' | 'A'..='Z' | '_' | '0'..='9' => true,
+                _ => false
+            }
         })(input)
     } else {
         Err(nom::Err::Error(make_error(