Add title to annchor when a truncate is done

src/AnchorTagBuilder.js

@@ -97,6 +97,12 @@ Autolinker.AnchorTagBuilder = Autolinker.Util.extend( Object, {
 			attrs[ 'rel' ] = "noopener noreferrer";
 		}
 
+		if( this.truncate ) {
+			if( this.truncate.length && this.truncate.length < match.getAnchorText().length ) {
+				attrs[ 'title' ] = match.getAnchorHref();
+			}
+		}
+
 		return attrs;
 	},
 

src/truncate/TruncateMiddle.js

@@ -16,6 +16,7 @@ Autolinker.truncate.TruncateMiddle = function(url, truncateLen, ellipsisChars){
   }
 
   var ellipsisLengthBeforeParsing;
+  var ellipsisLength;
 
   if(ellipsisChars == null) {
     ellipsisChars = '…';

src/truncate/TruncateSmart.js

@@ -14,6 +14,7 @@
 Autolinker.truncate.TruncateSmart = function(url, truncateLen, ellipsisChars){
 
 	var ellipsisLengthBeforeParsing;
+	var ellipsisLength;
 
 	if(ellipsisChars == null) {
 		ellipsisChars = '…';

tests/AutolinkerSpec.js

@@ -7,7 +7,7 @@ describe( "Autolinker", function() {
 			var autolinker = new Autolinker( { newWindow: false, truncate: 25 } );
 
 			var result = autolinker.link( "Check out http://www.yahoo.com/some/long/path/to/a/file" );
-			expect( result ).toBe( 'Check out <a href="http://www.yahoo.com/some/long/path/to/a/file">yahoo.com/some/long/pa&hellip;</a>' );
+			expect( result ).toBe( 'Check out <a href="http://www.yahoo.com/some/long/path/to/a/file" title="http://www.yahoo.com/some/long/path/to/a/file">yahoo.com/some/long/pa&hellip;</a>' );
 		} );
 
 	} );
@@ -1886,7 +1886,7 @@ describe( "Autolinker", function() {
 				it( "should truncate long a url/email/twitter to the given number of characters with the 'truncate' option specified", function() {
 					var result = Autolinker.link( "Test http://url.com/with/path", { truncate: 12, newWindow: false } );
 
-					expect( result ).toBe( 'Test <a href="http://url.com/with/path">url.com/w&hellip;</a>' );
+					expect( result ).toBe( 'Test <a href="http://url.com/with/path" title="http://url.com/with/path">url.com/w&hellip;</a>' );
 				} );
 
 
@@ -1925,26 +1925,26 @@ describe( "Autolinker", function() {
 				it( 'should default the `location` to "end" if it is not provided', function() {
 					var result = Autolinker.link( "Test http://url.com/with/path", { truncate: { length: 12 }, newWindow: false } );
 
-					expect( result ).toBe( 'Test <a href="http://url.com/with/path">url.com/w&hellip;</a>' );
+					expect( result ).toBe( 'Test <a href="http://url.com/with/path" title="http://url.com/with/path">url.com/w&hellip;</a>' );
 				} );
 
 
 				it( 'should truncate at the end when `location: "end"` is specified', function() {
 					var result = Autolinker.link( "Test http://url.com/with/path", { truncate: { length: 12, location: 'end' }, newWindow: false } );
 
-					expect( result ).toBe( 'Test <a href="http://url.com/with/path">url.com/w&hellip;</a>' );
+					expect( result ).toBe( 'Test <a href="http://url.com/with/path" title="http://url.com/with/path">url.com/w&hellip;</a>' );
 				} );
 
 
 				it( 'should truncate in the middle when `location: "middle"` is specified', function() {
 					var result = Autolinker.link( "Test http://url.com/with/path", { truncate: { length: 12, location: 'middle' }, newWindow: false } );
-					expect( result ).toBe( 'Test <a href="http://url.com/with/path">url.c&hellip;path</a>' );
+					expect( result ).toBe( 'Test <a href="http://url.com/with/path" title="http://url.com/with/path">url.c&hellip;path</a>' );
 				} );
 
 
 				it( 'should truncate according to the "smart" truncation rules when `location: "smart"` is specified', function() {
 					var result = Autolinker.link( "Test http://url.com/with/path", { truncate: { length: 12, location: 'smart' }, newWindow: false } );
-					expect( result ).toBe( 'Test <a href="http://url.com/with/path">url.com/&hellip;h</a>' );
+					expect( result ).toBe( 'Test <a href="http://url.com/with/path" title="http://url.com/with/path">url.com/&hellip;h</a>' );
 				} );
 
 			} );