Fix escaped macro identifier #28

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## [Unreleased](https://github.com/dalance/sv-parser/compare/v0.9.0...Unreleased) - ReleaseDate
 
+* [Fixed] escaped_ideitifier at macro name [#28](https://github.com/dalance/sv-parser/issues/28)
 * [Fixed] begin_keywords "1364-2001-noconfig" failure [#28](https://github.com/dalance/sv-parser/issues/28)
 * [Changed] update nom to 6.0.0
 

sv-parser-pp/src/preprocess.rs

@@ -561,7 +561,9 @@ fn identifier(node: RefNode, s: &str) -> Option<String> {
             }
             RefNode::EscapedIdentifier(x) => {
                 let x: Locate = x.nodes.0.try_into().unwrap();
-                return Some(String::from(x.str(s)));
+                let x = x.str(s);
+                let x = &x[1..]; // remove \
+                return Some(String::from(x));
             }
             _ => (),
         }
@@ -1132,6 +1134,32 @@ endmodule
 module mymod;
 mysubmod u_mysubmod() ;
 endmodule
+"##
+        );
+    }
+
+    #[test]
+    fn test16() {
+        let (ret, _) = preprocess(
+            get_testcase("test16.sv"),
+            &HashMap::new(),
+            &[] as &[String],
+            false,
+            false,
+        )
+        .unwrap();
+        assert_eq!(
+            ret.text(),
+            r##"module a;
+`define HELLO0 "HELLO"
+`define \HELLO1 "HELLO"
+initial begin
+$display("HELLO"  );
+$display("HELLO"  );
+$display("HELLO"  );
+$display("HELLO"  );
+end
+endmodule
 "##
         );
     }

sv-parser-pp/testcases/test16.sv

@@ -0,0 +1,10 @@
+module a;
+`define HELLO0 "HELLO"
+`define \HELLO1 "HELLO"
+initial begin
+$display(`HELLO0);
+$display(`\HELLO0 );
+$display(`HELLO1);
+$display(`\HELLO1 );
+end
+endmodule