Add support for #![feature(non_ascii_idents)]

1 files changed, 7 insertions, 2 deletions

diff --git a/askama_derive/src/parser.rs b/askama_derive/src/parser.rs
index c5e610e..27a9ed0 100644
--- a/askama_derive/src/parser.rs
+++ b/askama_derive/src/parser.rs
@@ -178,14 +178,14 @@ fn take_content<'a>(
 }
 
 fn identifier(input: Input) -> Result<(Input, &str), nom::Err<Input>> {
-    if !nom::is_alphabetic(input[0]) && input[0] != b'_' {
+    if !nom::is_alphabetic(input[0]) && input[0] != b'_' && !non_ascii(input[0]) {
         return Err(nom::Err::Error(error_position!(
             input,
             nom::ErrorKind::Custom(0)
         )));
     }
     for (i, ch) in input.iter().enumerate() {
-        if i == 0 || nom::is_alphanumeric(*ch) || *ch == b'_' {
+        if i == 0 || nom::is_alphanumeric(*ch) || *ch == b'_' || non_ascii(*ch) {
             continue;
         }
         return Ok((Input(&input[i..]), str::from_utf8(&input[..i]).unwrap()));
@@ -193,6 +193,11 @@ fn identifier(input: Input) -> Result<(Input, &str), nom::Err<Input>> {
     Ok((Input(&input[1..]), str::from_utf8(&input[..1]).unwrap()))
 }
 
+#[inline]
+fn non_ascii(chr: u8) -> bool {
+    chr >= 0x80 && chr <= 0xFD
+}
+
 named!(num_lit<Input, &str>, map!(nom::digit,
     |s| str::from_utf8(s.0).unwrap()
 ));