search: properly handle and escape backslashes

src/search_expr.rs

@@ -249,10 +249,10 @@ fn quoted_string_char(input: &str) -> nom::IResult<&str, char> {
     alt((none_of("\\\""), escaped_char))(input)
 }
 
-// meant for \" mostly for now
+// meant for \" and \\ mostly for now
 fn escaped_char(input: &str) -> nom::IResult<&str, char> {
     let (input, _) = char('\\')(input)?;
-    none_of("\\")(input)
+    anychar(input)
 }
 
 fn parse_word(input: &str) -> nom::IResult<&str, String> {
@@ -279,6 +279,14 @@ mod tests {
         );
     }
 
+    #[test]
+    fn parse_quoted_string_quoted_backslash() {
+        assert_eq!(
+            "my \"str\\ing",
+            parse_quoted_string("\"my \\\"str\\\\ing\"").unwrap().1
+        );
+    }
+
     #[test]
     fn should_reject_unknown_filter_key() {
         assert_eq!(

src/widgets/headerbar_search.rs

@@ -291,7 +291,7 @@ impl Widget for HeaderbarSearch {
                 }
                 if val.contains(' ') || val.contains('"') {
                     t.push('"');
-                    t.push_str(&val.replace('"', "\\\""));
+                    t.push_str(&val.replace('\\', "\\\\").replace('"', "\\\""));
                     t.push('"');
                 } else {
                     t.push_str(&val);