Update string parsing

README.md

@@ -6,9 +6,9 @@
 [![Pub Version](https://img.shields.io/badge/pub-v2.1.2-blue)](https://pub.dev/packages/jiffy)
 [![Platform](https://img.shields.io/badge/platform-flutter%7Cweb%7Cdart%20vm-orange)](https://github.com/jama5262/jiffy)
 
-Jiffy is a dart date time package inspired by [momentjs](https://momentjs.com/) for parsing, manipulating, querying and formatting dates
+Jiffy is a Flutter (Android, IOS and Web) date time package inspired by [momentjs](https://momentjs.com/) for parsing, manipulating, querying and formatting dates
 
-#### [Full Documentation](https://github.com/jama5262/jiffy/tree/v2.1.2/doc) | [Installation](https://pub.dev/packages/jiffy#-installing-tab-) | [ChangeLog](https://pub.dev/packages/jiffy#-changelog-tab-) | [Examples](https://pub.dev/packages/jiffy#-example-tab-)
+### [Full Documentation](https://github.com/jama5262/jiffy/tree/v2.1.2/doc) | [Installation](https://pub.dev/packages/jiffy#-installing-tab-) | [ChangeLog](https://pub.dev/packages/jiffy#-changelog-tab-) | [Examples](https://pub.dev/packages/jiffy#-example-tab-)
 
 # Usage
 
@@ -74,8 +74,9 @@ var jiffy4 = Jiffy()
 jiffy4.format("dd/MM/yyy"); // 20/10/2019
 
 
-// Months and year are added in respect to how many days there are in a months and if is a year is a leap year
-Jiffy("2010-1-31", "yyyy-MM-dd"); // This is January 31
+// Months and year are added in respect to how many 
+// days there are in a months and if is a year is a leap year
+Jiffy("2010/1/31", "yyyy-MM-dd"); // This is January 31
 Jiffy([2010, 1, 31]).add(months: 1); // This is February 28
 ```
 

doc/README.md

@@ -6,7 +6,7 @@
 [![Pub Version](https://img.shields.io/badge/pub-v2.1.2-blue)](https://pub.dev/packages/jiffy)
 [![Platform](https://img.shields.io/badge/platform-flutter%7Cweb%7Cdart%20vm-orange)](https://github.com/jama5262/jiffy)
 
-Jiffy is a dart date time package inspired by [momentjs](https://momentjs.com/) for parsing, manipulating, querying and formatting dates
+Jiffy is a Flutter (Android, IOS and Web) date time package inspired by [momentjs](https://momentjs.com/) for parsing, manipulating, querying and formatting dates
 
 # Table of content
 - [Before Use](#before-use)
@@ -67,10 +67,9 @@ Jiffy().utc(); // Returns a DateTime instance
 _**But when doing a method chaining, it is recommended to use a variable.**_ The variable will then hold a Jiffy instance. Example
 ```dart
 var jiffy = Jiffy()
-    ..utc()
     ..add(days: 1)
-    ..add(hours: 3)
     ..subtract(minutes: 30); // Returns a Jiffy instance
+    ..utc()
 ```
 Now `jiffy` variable returns a Jiffy instance. To get the date time, you can call it with the following methods
 ```dart
@@ -93,10 +92,15 @@ Jiffy().format(); // Return a ISO 8601 date time format
 ### String
 Creating a Jiffy from a string. See below
 ```dart
-Jiffy("1995-12-25");
+Jiffy("1995-12-25"); // A calendar date part
+Jiffy("1995/12/25"); // A calendar date part separated by slash "/"
+Jiffy("19951225"); // Basic (short) full date
+Jiffy("1995-12-25 12:00:00.000"); // An hour, minute, second, and millisecond time part
+Jiffy("1995-12-25T12:00:00.000"); ISO dart format
+Jiffy("1995-12-25T12:00:00.000Z"); ISO dart format (UTC)
 ```
 
-**_Note: For now, Jiffy supports only `yyyy-MM-dd` string formats. Passing string like `dd-MM-yyyy` will result in an exception. If you do need to pass this format, `dd-MM-yyyy` or any other, should also pass a pattern of that string, Also know as [String Formating](#string-formatting). See below_**
+**_Note: For now, Jiffy supports only the above string formats. Passing string like `dd-MM-yyyy` will result in an exception. If you do need to pass this format, `dd-MM-yyyy` or any other, should also pass a pattern of that string, Also know as [String Formating](#string-formatting). See below_**
 ```dart
 Jiffy("25-12-1995", "dd-MM-yyyy");
 Jiffy("12-1995", "MM-yyyy");
@@ -116,7 +120,7 @@ Jiffy("0ct 19th", "MMM do");
 Jiffy("19th October 2019", "do MMMM yyyy");
 ```
 
-Jiffy runs on top of the [Intl DateFormat](https://pub.dev/documentation/intl/latest/intl/DateFormat-class.html) package, you can find all the date time patterns used by Jiffy [here](https://pub.dev/documentation/intl/latest/intl/DateFormat-class.html)
+**_Note: Jiffy runs on top of the [Intl DateFormat](https://pub.dev/documentation/intl/latest/intl/DateFormat-class.html) package, you can find all the date time patterns used by Jiffy [here](https://pub.dev/documentation/intl/latest/intl/DateFormat-class.html)_**
 
 This is also same for Jiffy default formats. See below
 ```dart

lib/src/jiffy.dart

@@ -2,7 +2,7 @@ import 'dart:math';
 
 import 'package:intl/date_symbol_data_local.dart';
 import 'package:intl/intl.dart';
-import 'package:jiffy/src/exception/exception.dart';
+import 'package:jiffy/src/utils/exception.dart';
 import 'package:jiffy/src/relative_time/relative_time.dart' as relative;
 import 'package:jiffy/src/utils/normalize_units.dart';
 import 'package:jiffy/src/utils/ordinalLocale.dart';
@@ -69,11 +69,21 @@ class Jiffy {
             input.length > 6 ? input[6] : 0);
       }
     } else if (input is String) {
-      if (matchStringDateTime(input)) {
-        dateTime = DateFormat("yyyy-MM-dd").parse(input);
-      } else if (pattern != null) {
+      if (pattern != null) {
         dateTime = DateFormat(replacePatternInput(pattern))
             .parse(replaceParseInput(input));
+      } else if (matchHyphenStringDateTime(input)) {
+        dateTime = DateFormat("yyyy-MM-dd").parse(input);
+      } else if (matchDartStringDateTime(input) ||
+          matchISOStringDateTime(input)) {
+        dateTime = DateTime.parse(input).toLocal();
+      } else if (matchSlashStringDateTime(input)) {
+        dateTime = DateFormat("yyyy/MM/dd").parse(input);
+      } else if (matchBasicStringDateTime().hasMatch(input)) {
+        dateTime = DateFormat("yyyy/MM/dd")
+            .parse(input.replaceAllMapped(matchBasicStringDateTime(), (match) {
+          return "${match.group(1)}/${match.group(2)}/${match.group(3)}";
+        }));
       } else if (pattern == null) {
         throw JiffyException(
                 "Date time not recognized, a pattern must be passed, e.g. Jiffy('12, Oct', 'dd, MMM')")

lib/src/utils/normalize_units.dart

@@ -1,4 +1,4 @@
-import 'package:jiffy/src/exception/exception.dart';
+import 'package:jiffy/src/utils/exception.dart';
 
 String normalizeUnits(String unit) {
   String lowerCaseUnit = unit.toLowerCase();

lib/src/utils/regex.dart

@@ -1,7 +1,27 @@
-bool matchStringDateTime(String input) {
+bool matchDartStringDateTime(String input) {
+  return RegExp(
+          r"\d{4}-\d{1,2}-\d{1,2} \d{1,2}(:\d{1,2})?(:\d{1,2})?(.\d+)?(Z?)")
+      .hasMatch(input);
+}
+
+bool matchISOStringDateTime(String input) {
+  return RegExp(
+          r"\d{4}-\d{1,2}-\d{1,2}T\d{1,2}(:\d{1,2})?(:\d{1,2})?(.\d+)?(Z?)")
+      .hasMatch(input);
+}
+
+RegExp matchBasicStringDateTime() {
+  return RegExp(r"(\d{4})(\d{1,2})(\d{1,2})$");
+}
+
+bool matchHyphenStringDateTime(String input) {
   return RegExp(r"\d{4}-\d{1,2}-\d{1,2}$").hasMatch(input);
 }
 
+bool matchSlashStringDateTime(String input) {
+  return RegExp(r"\d{4}\/\d{1,2}\/\d{1,2}$").hasMatch(input);
+}
+
 Pattern matchOrdinalDates() {
   return RegExp(r"(?<=[0-9])(?:st|nd|rd|th)");
 }

test/jiffy_display_test.dart

@@ -4,14 +4,12 @@ import 'package:test/test.dart';
 void main() {
   group('Test format and default format datetime methods', () {
     test("Test format method", () {
-      expect(Jiffy("2019, 10, 16", "yyyy, MM, dd").format("MMMM dd, yyyy"),
-          "October 16, 2019");
-      expect(Jiffy("2019, 10, 16", "yyyy, MM, dd").format("'Today is' dd MMM"),
+      expect(Jiffy("20191016").format("MMMM dd, yyyy"), "October 16, 2019");
+      expect(Jiffy("2019-10-16 12:00").format("'Today is' dd MMM"),
           "Today is 16 Oct");
-      expect(Jiffy("2019, 10, 16", "yyyy, MM, dd").format("MMMMEEEEd"),
+      expect(Jiffy("2019-10-16T00:00:00.000").format("MMMMEEEEd"),
           "Wednesday, October 16");
-      expect(Jiffy("2019, 10, 16", "yyyy, MM, dd").format(),
-          "2019-10-16T00:00:00.000");
+      expect(Jiffy("2019/10/16").format(), "2019-10-16T00:00:00.000");
     });
     test("Test from method", () {
       expect(Jiffy([2019, 10, 16]).E, "Wed");

test/jiffy_manipulation_test.dart

@@ -74,7 +74,7 @@ void main() {
   group('Test Jiffy subtracting datetime', () {
     test("Subtracting milliseconds", () {
       expect(
-          Jiffy("2019-10-13 23:00:00:000", "yyyy-MM-dd hh:mm:ss")
+          Jiffy("2019-10-13 23:00:00")
               .subtract(duration: Duration(milliseconds: 1))
               .toString(),
           "2019-10-13 22:59:59.999");