Add Phone Number Linking

README.md

@@ -1,6 +1,6 @@
 # `linkify` [![pub package](https://img.shields.io/pub/v/linkify.svg)](https://pub.dartlang.org/packages/linkify)
 
-Low-level link (text, URLs, emails) parsing library in Dart.
+Low-level link (text, URLs, emails, phone numbers) parsing library in Dart.
 
 [Flutter library](https://github.com/Cretezy/flutter_linkify).
 

lib/src/phone_number.dart

@@ -0,0 +1,61 @@
+import 'package:linkify/linkify.dart';
+
+// matches "any amount of text with a phone number"
+final _phoneNumberRegex = RegExp(r'(.*?)((\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4})', caseSensitive: false, dotAll: true);
+
+class PhoneNumberLinkifier extends Linkifier {
+  const PhoneNumberLinkifier();
+
+  @override
+  List<LinkifyElement> parse(elements, options) {
+    final list = <LinkifyElement>[];
+
+    elements.forEach((element) {
+      if (element is TextElement) {
+        var match = _phoneNumberRegex.firstMatch(element.text);
+
+        if (match == null) {
+          list.add(element);
+        } else {
+          // create the preceding TextElement
+          if (match.group(1).isNotEmpty) {
+            list.add(TextElement(match.group(1)));
+          }
+
+          // create the PhoneNumberElement
+          if (match.group(2).isNotEmpty) {
+            var phoneNumberText = match.group(2);
+            var phoneNumberURL = "tel:" + phoneNumberText;
+
+            list.add(PhoneNumberElement(phoneNumberText, phoneNumberURL));
+          }
+
+          // create the following TextElement
+          final text = element.text.replaceFirst(match.group(0), '');
+          if (text.isNotEmpty) {
+            list.addAll(parse([TextElement(text)], options));
+          }
+        }
+      } else {
+        list.add(element);
+      }
+    });
+
+    return list;
+  }
+}
+
+class PhoneNumberElement extends LinkableElement {
+  PhoneNumberElement(String text, String url) : super(text, url);
+
+  @override
+  String toString() {
+    return "LinkElement: '$url' ($text)";
+  }
+
+  @override
+  bool operator ==(other) => equals(other);
+
+  @override
+  bool equals(other) => other is UrlElement && super.equals(other);
+}