migrate pkg to null safety

lib/src/linkify.dart

@@ -1,3 +1,44 @@
+import 'package:flutter/gestures.dart';
+import 'package:flutter/widgets.dart';
+
 enum LinkOptions { url, email, hashTag }
 
+TextSpan formatText(
+    {required String text, TextStyle? textStyle, TextStyle? linkStyle}) {
+  RegExp re = RegExp(
+      r"(((ht|f)tp(s?)://)|www.)[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*(:(0-9)*)*/?([a-zA-Z0-9\-.\?,'/\\\+&%\$#_=]*)?");
 
+  //  return the full text if there's no match
+  if (!re.hasMatch(text)) {
+    return TextSpan(text: text, style: textStyle);
+  }
+
+  List<String> texts = text.split(re);
+  List<TextSpan> spans = [];
+  List<RegExpMatch> links = re.allMatches(text).toList();
+
+  for (String text in texts) {
+    spans.add(TextSpan(text: text, style: textStyle));
+    if (links.length > 0) {
+      RegExpMatch match = links.removeAt(0);
+      String link = match.input.substring(match.start, match.end);
+
+      // add the link
+      spans.add(
+        TextSpan(
+          text: link,
+          style: linkStyle,
+          recognizer: TapGestureRecognizer()
+            ..onTap = () {
+              String l = link.startsWith('www') ? 'http://$link' : link;
+              if (l.endsWith('.') || l.endsWith(',') || l.endsWith(';')) {
+                l = l.substring(0, l.length - 1);
+              }
+            },
+        ),
+      );
+    }
+  }
+
+  return TextSpan(children: spans);
+}

lib/src/utils/regex.dart

@@ -0,0 +1,7 @@
+RegExp urlRegex = RegExp(r'(?:(?:https?|ftp):\/\/)?[\w/\-?=%.]+\.[\w/\-?=%.]+');
+
+RegExp hashtagRegex =
+    RegExp(r'(?:(?:https?|ftp):\/\/)?[\w/\-?=%.]+\.[\w/\-?=%.]+');
+
+RegExp emailRegex = RegExp(
+    r"^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$");

lib/src/utils/utils.dart

@@ -0,0 +1 @@
+ nullify(dynamic value) {}

pubspec.yaml

@@ -5,7 +5,7 @@ author:
 homepage:
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
   flutter: ">=1.17.0"
 
 dependencies:
@@ -15,7 +15,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  test:
+  test: ^1.16.5
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec

test/linkify_text_test.dart

@@ -1,5 +1,3 @@
 import 'package:flutter_test/flutter_test.dart';
 
-void main() {
+void main() {}
-  test('adds one to input values', () {});
-}

test/regex_test.dart

@@ -0,0 +1,49 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:linkify_text/src/utils/regex.dart';
+
+//   final text =
+//       "My website url: https://blasanka.github.io/Google search using: www.google.com, social media is facebook.com, http://example.com/method?param=flutterstackoverflow.com is my greatest website. DartPad share: https://github.com/dart-lang/dart-pad/wiki/Sharing-Guide, see this example and edit it here";
+
+void main() {
+  group('Regular Expression', () {
+    test("Should match all emails", () {
+      List<String> _emails = ["hello@world.com", "foo.bar@js.com"];
+      _emails.forEach((e) {
+        bool hasMatch = emailRegex.hasMatch(e);
+        expect(hasMatch, true);
+      });
+    });
+    test("Should match all urls", () {
+      List<String> _urls = [
+        "http://domain.com",
+        "http://domain.com/",
+        "https://domain.com",
+        "https://domain.com/",
+        "https://www.domain.com",
+        "www.domain.com",
+        "https://domain.com/Google?",
+        "https://domain.com/Google/search",
+        "https://domain.com/Google?param=",
+        "https://domain.com/Google?param=helloworld",
+        "https://sub.domain.com/Google?param=helloworld#hash",
+      ];
+      _urls.forEach((u) {
+        bool hasMatch = emailRegex.hasMatch(u);
+        expect(hasMatch, true);
+      });
+    });
+    test("Should match all hashtags", () {
+      List<String> _hashtags = [
+        "#1",
+        "#trending",
+        "#_trending",
+        "#TRENDING",
+        "#trending_topic",
+      ];
+      _hashtags.forEach((h) {
+        bool hasMatch = emailRegex.hasMatch(h);
+        expect(hasMatch, true);
+      });
+    });
+  });
+}