diff options
| -rw-r--r-- | lib/xixanta/src/parser.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/xixanta/src/parser.rs b/lib/xixanta/src/parser.rs index d508003..8672923 100644 --- a/lib/xixanta/src/parser.rs +++ b/lib/xixanta/src/parser.rs @@ -1332,7 +1332,10 @@ impl Parser { }, '=' => match second { '=' => Ok((Some(NodeType::Operation(OperationType::Equal)), 2)), - _ => Err(self.parser_error(format!("unknown operator '={}'", second).as_str())), + // 'ca65' allows a single '=' for comparison as well. This is in + // my humble opinion bad, but existing code uses this, so let's + // add support for it. + _ => Ok((Some(NodeType::Operation(OperationType::Equal)), 1)), }, '!' => match second { '=' => Ok((Some(NodeType::Operation(OperationType::NotEqual)), 2)), |