Add IIFE.

src/core/fluent-date.js

@@ -1,84 +1,95 @@
 /**
 The HackMyResume date representation.
-@license MIT. Copyright (c) 2015 James Devlin / FluentDesk.
-@module fluent-date.js
+@license MIT. See LICENSE.md for details.
+@module core/fluent-date
 */
 
-var moment = require('moment');
+(function(){
 
-/**
-Create a FluentDate from a string or Moment date object. There are a few date
-formats to be aware of here.
-1. The words "Present" and "Now", referring to the current date
-2. The default "YYYY-MM-DD" format used in JSON Resume ("2015-02-10")
-3. Year-and-month only ("2015-04")
-4. Year-only "YYYY" ("2015")
-5. The friendly HackMyResume "mmm YYYY" format ("Mar 2015" or "Dec 2008")
-6. Empty dates ("", " ")
-7. Any other date format that Moment.js can parse from
-Note: Moment can transparently parse all or most of these, without requiring us
-to specify a date format...but for maximum parsing safety and to avoid Moment
-deprecation warnings, it's recommended to either a) explicitly specify the date
-format or b) use an ISO format. For clarity, we handle these cases explicitly.
-@class FluentDate
-*/
-function FluentDate( dt ) {
-  this.rep = this.fmt( dt );
-}
+  var moment = require('moment');
 
-FluentDate/*.prototype*/.fmt = function( dt ) {
-  if( (typeof dt === 'string' || dt instanceof String) ) {
-    dt = dt.toLowerCase().trim();
-    if( /^(present|now|current)$/.test(dt) ) { // "Present", "Now"
-      return moment();
-    }
-    else if( /^\D+\s+\d{4}$/.test(dt) ) { // "Mar 2015"
-      var parts = dt.split(' ');
-      var month = (months[parts[0]] || abbr[parts[0]]);
-      var temp = parts[1] + '-' + (month < 10 ? '0' + month : month.toString());
-      return moment( temp, 'YYYY-MM' );
-    }
-    else if( /^\d{4}-\d{1,2}$/.test(dt) ) { // "2015-03", "1998-4"
-      return moment( dt, 'YYYY-MM' );
-    }
-    else if( /^\s*\d{4}\s*$/.test(dt) ) { // "2015"
-      return moment( dt, 'YYYY' );
-    }
-    else if( /^\s*$/.test(dt) ) { // "", " "
-      var defTime = {
-        isNull: true,
-        isBefore: function( other ) {
-          return( other && !other.isNull ) ? true : false;
-        },
-        isAfter: function( other ) {
-          return( other && !other.isNull ) ? false : false;
-        },
-        unix: function() { return 0; },
-        format: function() { return ''; },
-        diff: function() { return 0; }
-      };
-      return defTime;
+  /**
+  Create a FluentDate from a string or Moment date object. There are a few date
+  formats to be aware of here.
+  1. The words "Present" and "Now", referring to the current date
+  2. The default "YYYY-MM-DD" format used in JSON Resume ("2015-02-10")
+  3. Year-and-month only ("2015-04")
+  4. Year-only "YYYY" ("2015")
+  5. The friendly HackMyResume "mmm YYYY" format ("Mar 2015" or "Dec 2008")
+  6. Empty dates ("", " ")
+  7. Any other date format that Moment.js can parse from
+  Note: Moment can transparently parse all or most of these, without requiring us
+  to specify a date format...but for maximum parsing safety and to avoid Moment
+  deprecation warnings, it's recommended to either a) explicitly specify the date
+  format or b) use an ISO format. For clarity, we handle these cases explicitly.
+  @class FluentDate
+  */
+  function FluentDate( dt ) {
+    this.rep = this.fmt( dt );
+  }
+
+  FluentDate/*.prototype*/.fmt = function( dt, throws ) {
+
+    throws = (throws === undefined || throws === null) || throws;
+
+    if( (typeof dt === 'string' || dt instanceof String) ) {
+      dt = dt.toLowerCase().trim();
+      if( /^(present|now|current)$/.test(dt) ) { // "Present", "Now"
+        return moment();
+      }
+      else if( /^\D+\s+\d{4}$/.test(dt) ) { // "Mar 2015"
+        var parts = dt.split(' ');
+        var month = (months[parts[0]] || abbr[parts[0]]);
+        var temp = parts[1] + '-' + (month < 10 ? '0' + month : month.toString());
+        return moment( temp, 'YYYY-MM' );
+      }
+      else if( /^\d{4}-\d{1,2}$/.test(dt) ) { // "2015-03", "1998-4"
+        return moment( dt, 'YYYY-MM' );
+      }
+      else if( /^\s*\d{4}\s*$/.test(dt) ) { // "2015"
+        return moment( dt, 'YYYY' );
+      }
+      else if( /^\s*$/.test(dt) ) { // "", " "
+        var defTime = {
+          isNull: true,
+          isBefore: function( other ) {
+            return( other && !other.isNull ) ? true : false;
+          },
+          isAfter: function( other ) {
+            return( other && !other.isNull ) ? false : false;
+          },
+          unix: function() { return 0; },
+          format: function() { return ''; },
+          diff: function() { return 0; }
+        };
+        return defTime;
+      }
+      else {
+        var mt = moment( dt );
+        if(mt.isValid())
+          return mt;
+        if( throws )
+          throw 'Invalid date format encountered.';
+        return null;
+      }
     }
     else {
-      var mt = moment( dt );
-      if(mt.isValid())
-        return mt;
-      throw 'Invalid date format encountered.';
+      if( !dt ) {
+        return moment();
+      }
+      else if( dt.isValid && dt.isValid() )
+        return dt;
+      if( throws )
+        throw 'Unknown date object encountered.';
+      return null;
     }
-  }
-  else {
-    if( !dt ) {
-      return moment();
-    }
-    else if( dt.isValid && dt.isValid() )
-      return dt;
-    throw 'Unknown date object encountered.';
-  }
-};
+  };
 
-var months = {}, abbr = {};
-moment.months().forEach(function(m,idx){months[m.toLowerCase()]=idx+1;});
-moment.monthsShort().forEach(function(m,idx){abbr[m.toLowerCase()]=idx+1;});
-abbr.sept = 9;
+  var months = {}, abbr = {};
+  moment.months().forEach(function(m,idx){months[m.toLowerCase()]=idx+1;});
+  moment.monthsShort().forEach(function(m,idx){abbr[m.toLowerCase()]=idx+1;});
+  abbr.sept = 9;
 
-module.exports = FluentDate;
+  module.exports = FluentDate;
+
+}());