fixed dateFormat method for special characters

dist/js/datepicker.js

@@ -302,6 +302,7 @@ var Datepicker;
         formatDate: function (string, date) {
             date = date || this.date;
             var result = string,
+                boundary = this._getWordBoundaryRegExp,
                 locale = this.loc,
                 decade = datepicker.getDecade(date),
                 d = datepicker.getParsedDate(date);
@@ -310,34 +311,38 @@ var Datepicker;
                 case /@/.test(result):
                     result = result.replace(/@/, date.getTime());
                 case /dd/.test(result):
-                    result = result.replace(/\bdd\b/, d.fullDate);
+                    result = result.replace(boundary('dd'), d.fullDate);
                 case /d/.test(result):
-                    result = result.replace(/\bd\b/, d.date);
+                    result = result.replace(boundary('d'), d.date);
                 case /DD/.test(result):
-                    result = result.replace(/\bDD\b/, locale.days[d.day]);
+                    result = result.replace(boundary('DD'), locale.days[d.day]);
                 case /D/.test(result):
-                    result = result.replace(/\bD\b/, locale.daysShort[d.day]);
+                    result = result.replace(boundary('D'), locale.daysShort[d.day]);
                 case /mm/.test(result):
-                    result = result.replace(/\bmm\b/, d.fullMonth);
+                    result = result.replace(boundary('mm'), d.fullMonth);
                 case /m/.test(result):
-                    result = result.replace(/\bm\b/, d.month + 1);
+                    result = result.replace(boundary('m'), d.month + 1);
                 case /MM/.test(result):
-                    result = result.replace(/\bMM\b/, this.loc.months[d.month]);
+                    result = result.replace(boundary('MM'), this.loc.months[d.month]);
                 case /M/.test(result):
-                    result = result.replace(/\bM\b/, locale.monthsShort[d.month]);
+                    result = result.replace(boundary('M'), locale.monthsShort[d.month]);
                 case /yyyy/.test(result):
-                    result = result.replace(/\byyyy\b/, d.year);
+                    result = result.replace(boundary('yyyy'), d.year);
                 case /yyyy1/.test(result):
-                    result = result.replace(/\byyyy1\b/, decade[0]);
+                    result = result.replace(boundary('yyyy1'), decade[0]);
                 case /yyyy2/.test(result):
-                    result = result.replace(/\byyyy2\b/, decade[1]);
+                    result = result.replace(boundary('yyyy2'), decade[1]);
                 case /yy/.test(result):
-                    result = result.replace(/\byy\b/, d.year.toString().slice(-2));
+                    result = result.replace(boundary('yy'), d.year.toString().slice(-2));
             }
 
             return result;
         },
 
+        _getWordBoundaryRegExp: function (sign) {
+            return new RegExp('\\b(?=[a-zA-Z0-9äöüßÄÖÜ<])' + sign + '(?![>a-zA-Z0-9äöüßÄÖÜ])');
+        },
+
         selectDate: function (date) {
             var _this = this,
                 opts = _this.opts,

src/js/datepicker.js

@@ -302,6 +302,7 @@ var Datepicker;
         formatDate: function (string, date) {
             date = date || this.date;
             var result = string,
+                boundary = this._getWordBoundaryRegExp,
                 locale = this.loc,
                 decade = datepicker.getDecade(date),
                 d = datepicker.getParsedDate(date);
@@ -310,34 +311,38 @@ var Datepicker;
                 case /@/.test(result):
                     result = result.replace(/@/, date.getTime());
                 case /dd/.test(result):
-                    result = result.replace(/\bdd\b/, d.fullDate);
+                    result = result.replace(boundary('dd'), d.fullDate);
                 case /d/.test(result):
-                    result = result.replace(/\bd\b/, d.date);
+                    result = result.replace(boundary('d'), d.date);
                 case /DD/.test(result):
-                    result = result.replace(/\bDD\b/, locale.days[d.day]);
+                    result = result.replace(boundary('DD'), locale.days[d.day]);
                 case /D/.test(result):
-                    result = result.replace(/\bD\b/, locale.daysShort[d.day]);
+                    result = result.replace(boundary('D'), locale.daysShort[d.day]);
                 case /mm/.test(result):
-                    result = result.replace(/\bmm\b/, d.fullMonth);
+                    result = result.replace(boundary('mm'), d.fullMonth);
                 case /m/.test(result):
-                    result = result.replace(/\bm\b/, d.month + 1);
+                    result = result.replace(boundary('m'), d.month + 1);
                 case /MM/.test(result):
-                    result = result.replace(/\bMM\b/, this.loc.months[d.month]);
+                    result = result.replace(boundary('MM'), this.loc.months[d.month]);
                 case /M/.test(result):
-                    result = result.replace(/\bM\b/, locale.monthsShort[d.month]);
+                    result = result.replace(boundary('M'), locale.monthsShort[d.month]);
                 case /yyyy/.test(result):
-                    result = result.replace(/\byyyy\b/, d.year);
+                    result = result.replace(boundary('yyyy'), d.year);
                 case /yyyy1/.test(result):
-                    result = result.replace(/\byyyy1\b/, decade[0]);
+                    result = result.replace(boundary('yyyy1'), decade[0]);
                 case /yyyy2/.test(result):
-                    result = result.replace(/\byyyy2\b/, decade[1]);
+                    result = result.replace(boundary('yyyy2'), decade[1]);
                 case /yy/.test(result):
-                    result = result.replace(/\byy\b/, d.year.toString().slice(-2));
+                    result = result.replace(boundary('yy'), d.year.toString().slice(-2));
             }
 
             return result;
         },
 
+        _getWordBoundaryRegExp: function (sign) {
+            return new RegExp('\\b(?=[a-zA-Z0-9äöüßÄÖÜ<])' + sign + '(?![>a-zA-Z0-9äöüßÄÖÜ])');
+        },
+
         selectDate: function (date) {
             var _this = this,
                 opts = _this.opts,

tests/index.html

@@ -8,6 +8,7 @@
         <script type="text/javascript" src="../bower_components/jquery/dist/jquery.min.js"></script>
         <script type="text/javascript" src="../dist/js/datepicker.js"></script>
         <script type="text/javascript" src="../dist/js/i18n/datepicker.en.js"></script>
+        <script type="text/javascript" src="../dist/js/i18n/datepicker.de.js"></script>
 
         <script type="text/javascript" src="../node_modules/mocha/mocha.js"></script>
         <script type="text/javascript" src="../node_modules/chai/chai.js"></script>

tests/specs/options.js

@@ -136,7 +136,6 @@ describe('Options', function () {
                 'yy': 15,
                 'yyyy1': 2010,
                 'yyyy2': 2019
-
             };
 
         for (var format in formats) {
@@ -151,6 +150,15 @@ describe('Options', function () {
                 })
             }(format))
         }
+
+        it('should work with special characters', function () {
+            dp = $input.datepicker({
+                language: 'de',
+                dateFormat: 'Month is MM'
+            }).data('datepicker');
+            dp.selectDate(new Date(2016, 2, 1));
+            expect(dp.$el.val()).to.be.equal('Month is März');
+        })
     });
 
     describe('altField', function () {