bang and search

app/lib/utils/uri_parser.dart

@@ -1,20 +1,28 @@
+final _domainRegex = RegExp(r'\.[a-zA-Z]{2,}$');
+const _supportedSchemes = {'https', 'http', 'ftp', 'file', 'about'};
+
 Uri? tryParseUrl(String? input, {bool eagerParsing = false}) {
   if (input != null) {
     var uri = Uri.tryParse(input);
     if (uri != null) {
       if (uri.authority.isEmpty && eagerParsing) {
-        //When there is no scheme, there will be no authority/host and all becomes a path
-        //so we make sure there are at least 2 segments where the first one looks like a domain
-        if (uri.pathSegments.length > 1 &&
-            RegExp(r'.[a-z]{2,}$').hasMatch(uri.pathSegments.first)) {
-          uri = Uri.tryParse('https://$input');
+        if (uri.pathSegments.isNotEmpty) {
+          if (_domainRegex.hasMatch(uri.pathSegments.first)) {
+            uri = Uri.tryParse('https://$input');
+          }
         }
       }
 
-      if (uri != null &&
-          uri.authority.isNotEmpty &&
-          (uri.isScheme('http') || uri.isScheme('https') || !uri.hasScheme)) {
-        return uri;
+      if (uri != null) {
+        if (uri.isScheme('about')) {
+          return uri;
+        }
+
+        if (uri.authority.isNotEmpty) {
+          if (_supportedSchemes.contains(uri.scheme) || !uri.hasScheme) {
+            return uri;
+          }
+        }
       }
     }
   }