Implement scansion:any in attr

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

src/element.rs

@@ -227,6 +227,10 @@ impl<'a> PartialEq<&Element> for ScanElement<'a> {
 			};
 
             for (attr, val) in self.elem.attrs() {
+                if val == "{scansion:any}" {
+                    continue;
+                }
+
                 match (attr, other.attr(attr)) {
                     (attr, _) if attr == "scansion:strict" => continue,
                     (_, None) => return false,
@@ -479,4 +483,14 @@ mod tests {
 
 		assert_ne!(scan1, &elem2);
     }
+
+    #[test]
+    fn ignore_attr_val_success() {
+        let elem1: Element = "<message scansion:strict='true' xmlns='jabber:client' id='{scansion:any}' />"
+            .parse().unwrap();
+        let elem2: Element = "<message xmlns='jabber:client' id='some-id' />".parse().unwrap();
+        let scan1 = ScanElement::new(&elem1);
+
+        assert_eq!(scan1, &elem2);
+    }
 }