added linkify filter and linkify tests

src/_filter/string/linkify.js

@@ -0,0 +1,24 @@
+/**
+ * @ngdoc filter
+ * @name linkify
+ * @kind function
+ *
+ * @description
+ * takes string/html and scans for any links and convert them to links.
+ * Supports converting to ftp, mails and normal url links.
+ */
+
+angular.module('a8m.linkify', [])
+
+    .filter('linkify',[ function () {
+        return function (input) {
+
+            var stringToBeReturn = '';
+
+            // replace for url links and ftp links
+            stringToBeReturn = input.replace(/((?:ht|f)tps?:\/?\/?([^\s|^\<]+))/g, "<a target='_blank' href='$1'>$2</a>");
+
+            // replace for email links
+            return stringToBeReturn.replace(/(?:([^\s|^\>]+\@[0-9a-zA-Z\_]+\.[^\s|^\<]+))/g, "<a href='mailto:$1'>$1</a>");
+        }
+    }]);

src/filters.js

@@ -21,6 +21,7 @@ angular.module('angular.filter', [
   'a8m.ltrim',
   'a8m.rtrim',
   'a8m.repeat',
+  'a8m.linkify',
 
   'a8m.to-array',
   'a8m.concat',

test/spec/filter/string/linkify.js

@@ -0,0 +1,47 @@
+'use strict';
+
+describe('linkifyFilter', function () {
+
+    var filter;
+
+    beforeEach(module('a8m.linkify'));
+
+    beforeEach(inject(function ($filter) {
+        filter = $filter('linkify');
+    }));
+
+    it('should return proper format for domain url either https or not, and either with tags or space before/after', function() {
+
+        expect(filter('http://domain.com')).toEqual("<a target='_blank' href='http://domain.com'>domain.com</a>");
+        expect(filter('http://www.domain.com')).toEqual("<a target='_blank' href='http://www.domain.com'>www.domain.com</a>");
+        expect(filter('https://www.domain.com')).toEqual("<a target='_blank' href='https://www.domain.com'>www.domain.com</a>");
+        expect(filter('<p>some tags before</p>http://www.domain.com some txt')).toEqual("<p>some tags before</p><a target='_blank' href='http://www.domain.com'>www.domain.com</a> some txt");
+        expect(filter('some text http://www.domain.com<p>some tags after</p>')).toEqual("some text <a target='_blank' href='http://www.domain.com'>www.domain.com</a><p>some tags after</p>");
+
+    });
+
+    it('should return proper format for ftp url either https or not, and either with tags or space before/after', function() {
+
+        expect(filter('ftp://domain.com')).toEqual("<a target='_blank' href='ftp://domain.com'>domain.com</a>");
+        expect(filter('ftp://www.domain.com')).toEqual("<a target='_blank' href='ftp://www.domain.com'>www.domain.com</a>");
+        expect(filter('ftps://www.domain.com')).toEqual("<a target='_blank' href='ftps://www.domain.com'>www.domain.com</a>");
+        expect(filter('<p>some tags before</p>ftps://www.domain.com some txt')).toEqual("<p>some tags before</p><a target='_blank' href='ftps://www.domain.com'>www.domain.com</a> some txt");
+        expect(filter('some text ftps://www.domain.com<p>some tags after</p>')).toEqual("some text <a target='_blank' href='ftps://www.domain.com'>www.domain.com</a><p>some tags after</p>");
+
+    });
+
+    it('should return proper format for mail url', function() {
+
+        expect(filter('[email protected]')).toEqual("<a href='mailto:[email protected]'>[email protected]</a>");
+
+    });
+
+    it('should return proper format for mail url even for space or with tags', function() {
+
+        var textToBeScan = "someText here [email protected]<p>someTag</p>",
+            textToBeReturned = "someText here <a href='mailto:[email protected]'>[email protected]</a><p>someTag</p>";
+
+        expect(filter(textToBeScan)).toEqual(textToBeReturned);
+
+    });
+});