Upgrade regex + italic parser (#42)

* improved phone pattern: https://regexr.com/3aevr

* Url pattern: https://uibakery.io/regex-library/url

* italic pattern :D

* added Italics parser

* Undo changes

lib/src/models.dart

@@ -162,3 +162,17 @@ class BoldParser extends ParserType {
     };
   }
 }
+
+class ItalicParser extends ParserType {
+  ItalicParser(
+      {Function(Matched)? onTap,
+      TextStyle? style,
+      String pattern = RTUtils.italicPattern})
+      : super(style: style, onTap: onTap, pattern: pattern) {
+    renderText = ({String? str}) {
+      return Matched(
+          display: str?.substring(1, str.length - 1),
+          value: str?.substring(1, str.length - 1));
+    };
+  }
+}

lib/src/util.dart

@@ -5,13 +5,14 @@ class RTUtils {
 
   /// URL Regex - A predefined type for handling URL matching
   static const urlPattern =
-      r'[(http(s)?):\/\/(www\.)?a-zA-Z0-9@:._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:_\+.~#?&//=]*)';
+      r'''[(http(s)?):\/\/(www\.)?a-zA-Z0-9!@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9!@:%_\+.~#?&//=]*)''';
 
   /// Phone Regex - A predefined type for handling phone matching
   static const phonePattern =
       r'(\+?( |-|\.)?\d{1,2}( |-|\.)?)?(\(?\d{3}\)?|\d{3})( |-|\.)?(\d{3}( |-|\.)?\d{4})';
 
   static const boldPattern = r'\*.*?\*';
+  static const italicPattern = r'\_.*?\_';
   static const hashPattern = r'\B#+([^\x00-\x7F]|\w)+';
   static const mentionPattern = r'\B@+([\w]+)\b';
 }