Nepali Utilities for Dart

A pure dart package with collection of Nepali Utilities like Date converter, Date formatter, DateTime, Nepali Number, Nepali Unicode, Nepali Moments and many more.

Utility Classes

• NepaliDateTime
• DateConversion
• NepaliDateFormat
• NepaliNumberFormat
• NepaliUnicode
• NepaliMoment
• many yet to come

Language Setup

Default language for Nepali Utility classes can be set as:

void main(){
    NepaliUtils(Language.nepali);
}

This is completely optional. Default language will be English if not set.

Nepali Date Time

The class is similar to dart:core's DateTime class, except that, this works with Bikram Sambat.

NepaliDateTime gorkhaEarthQuake = NepaliDateTime.parse('2072-01-12T11:56:25');
print(gorkhaEarthQuake.year); // 2072

NepaliDateTime currentTime = NepaliDateTime.now();
print(currentTime.toIso8601String()); //2076-02-01T11:25:46.490980
print(gorkhaEarthQuake.mergeTime(10, 20, 30));
// 2072-01-12 10:20:30.000

Date Conversion

Converts dates from AD to BS and vice versa.

NepaliDateTime nt = DateTime(2019, 8, 03, 14, 30, 15).toNepaliDateTime();
print('In BS = $nt'); //2076-04-18 14:30:15.000
DateTime dt = nt.toDateTime(); //2019-08-03 14:30:15.000
print('In AD = $dt');

Nepali Date Formatter

Formats NepaliDateTime into desired format. Formats NepaliDateTime into desired format.

Constructor table for quick formatting:

Constructor	Result
d	18
E	Sat
EEEE	Saturday
LLL	Shr
LLLL	Shrawan
M	4
Md	4/18
MEd	Sat, 4/18
MMM	Shr
MMMd	Shr 18
MMMEd	Saturday, Shr 18
MMMM	Shrawan
MMMMd	Shrawan 18
MMMMEEEEd	Saturday, Shrawan 18
QQQ	Q2
QQQQ	2nd quarter
y	2076
yM	2076/04
yMd	2076/04/18
yMEd	Sat, 2076/04/18
yMMM	Shr 2076
yMMMd	Shr 18, 2076
yMMMEd	Sat, Shr 18, 2076
yMMMMM	Shrawan 2076
yMMMMd	Shrawan 18, 2076
yMMMMEEEEd	Saturday, Shrawan 18, 2076
yQQQ	Q2 2076
yQQQQ	2nd quarter 2076
H	21
Hm	21:04
Hms	21:17:56
j	9 PM
jm	9:17 PM
jms	9:17:56 PM
m	9
ms	9:17
s	56

Example:

var date1 = NepaliDateFormat.MEd();
var date2 = NepaliDateFormat.MMMMEEEEd();
var date3 = NepaliDateFormat.jms();

print(date1.format(gorkhaEarthQuake)); // Sat, 1/12 
print(date2.format(gorkhaEarthQuake)); // Saturday, Baisakh 18
print(date3.format(gorkhaEarthQuake)); // 11:56:00 AM

Formats can also be specified with a pattern string.

Symbol	Meaning	Presentation	Example (en / np)
G	era designator	(Text)	BS / बि सं
GG	era designator	(Text)	B.S. / बि.सं.
GGG	era designator	(Text)	Bikram Sambat / बिक्रम संबत
y	year	(Number)	1996 / १९९६
yy	year	(Number)	96 / ९६
yyyy	year	(Number)	1996 / १९९६
Q	quarter	(Text)	3
QQ	quarter	(Text)	03
QQQ	quarter	(Text)	Q3
QQQQ	quarter	(Text)	3rd quarter
M	month in year	(Text & Number)	1 / १
MM	month in year	(Text & Number)	01 / ०१
MMM	month in year	(Text & Number)	Bai / बै
MMMM	month in year	(Text & Number)	Baishakh / बैशाख
d	day in month	(Number)	9 / ९
dd	day in month	(Number)	09 / ०९
E	day of week	(Text)	M / सो
EE	day of week	(Text)	Mon / सोम
EEE	day of week	(Text)	Monday / सोमबार
a	am/pm marker	(Text)	pm / बेलुकी
aa	am/pm marker	(Text)	PM / बेलुकी
h	hour in am/pm(1~12)	(Number)	2 / २
hh	hour in am/pm(1~12)	(Number)	02 / ०२
H	hour in day (0~23)	(Number)	14 / १४
HH	hour in day (0~23)	(Number)	14 / १४
m	minute in hour	(Number)	3 / ३
mm	minute in hour	(Number)	03 / ०३
s	second in minute	(Number)	55 / ५५
s	second in minute	(Number)	55 / ५५
S	fractional second	(Number)	978 / ९७८
'	escape for text	(Delimiter)	'Date='
''	single quote	(Literal)	'o''clock'

Example:

var date1 = NepaliDateFormat("yyyy.MM.dd G 'at' HH:mm:ss");
var date2 = NepaliDateFormat("EEE, MMM d, ''yy");
var date3 = NepaliDateFormat("h:mm a");
var date4 = NepaliDateFormat("hh 'o''clock' aa");
var date5 = NepaliDateFormat("yyyy.MMMM.dd GGG hh:mm a");

print(date1.format(gorkhaEarthQuake)); // 2072.01.12 BS at 11:56:25
print(date2.format(gorkhaEarthQuake)); // Saturday, Bai 12, '72
print(date3.format(gorkhaEarthQuake)); // 11:56 am
print(date4.format(gorkhaEarthQuake)); // 11 o'clock AM
print(date5.format(gorkhaEarthQuake)); // 2072.Baishakh.12 Bikram Sambat 11:56 am

Note: Always wrap pattern string in double quote (").

Nepali Number

Converts English numbers into Nepali number literals.

var currencyFormat = NepaliNumberFormat(
    symbol: 'Rs.',
);
var commaSeparated = NepaliNumberFormat(
    decimalDigits: 2,
);
var inWords = NepaliNumberFormat(
    inWords: true,
    language: Language.NEPALI,
);
var currencyInWords = NepaliNumberFormat(
    inWords: true,
    language: Language.NEPALI,
    isMonetory: true,
    decimalDigits: 2,
);
print('123456 -> ${currencyFormat.format(123456)}');
// 123456 -> 1,23,456

print('123456789.6548 -> ${commaSeparated.format(123456789.6548)}');
// 123456789.6548 -> 12,34,56,789.65

print('123456 -> ${inWords.format(123456)}');
// 123456 -> 1 lakh 23 thousand 4 hundred 56

print('123456789.6548 -> ${currencyInWords.format(123456789.6548)}');
// 123456789.6548 -> १२ करोड ३४ लाख ५६ हजार ७ सय ८९ रुपैया ६५ पैसा

Nepali Unicode

Converts English literal (Roman Literals) into Nepali Unicode.

print(NepaliUnicode.convert("sayau' thu''gaa fUlakaa haamii, euTai maalaa nepaalii"));
print(NepaliUnicode.convert("saarwabhauma bhai failiekaa, mecii-mahaakaalii\n"));

// स​यौं थुँगा फूलका हामी, एउटै माला नेपाली
// सार्वभौम भै फैलिएका, मेची-महाकाली

If live conversion is required i.e. conversion as you type, then set live: true.

NepaliUnicode.convert(textFromTextField, live: true);

Nepali Moment

Generates a fuzzy timestamp using dates provided.

print(NepaliMoment.fromBS(NepaliDateTime.parse('2076-03-22T08:41:14')));
// २२ दिन पछि

Here, the current DateTime is 2076-02-32 19:09:25 i.e. reference date

print(NepaliMoment.fromBS(NepaliDateTime.parse('2076-02-32T18:25:14'),
      referenceDate: NepaliDateTime.parse('2076-02-32T18:34:14')));
// ९ मिनेट पहिले

print(NepaliMoment.fromAD(DateTime.parse('2019-06-02T18:22:14'),
      referenceDate: DateTime.parse('2019-06-15T18:34:14')));
// १३ दिन पहिले

Example

Find more detailed example here.

Contribute

If you want to contribute to the package, please feel free to submit issues or PR at Github Repo.

Also show some love by staring the repo ⭐, if you like the package.

License

Copyright (c) 2020 Sarbagya Dhaubanjar

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.