Parsi Date
The Parsi Date library is an implementation of the Solar Hijri Calendar, also known as the Jalali or Persian Calendar, which is the official calendar of Iran. This library aims to create a Solar Hijri date library that closely resembles Ruby's built-in date library, providing a seamless experience for users who need to work with the Solar Hijri dates. The conversion algorithm used in this library is inspired by FarsiWeb.
Features
-
Parsi::Date and Parsi::DateTime: These objects can be used just like Ruby's
Date
andDateTime
objects. - Date Conversion: Easily convert between Gregorian and Solar Hijri dates.
- Leap Year Calculation: Determine if a given Solar Hijri year is a leap year.
- Date Parsing and Formatting: Parse Solar Hijri date strings and format dates in various styles.
Usage
Basic Operations
You can use Parsi::Date
and Parsi::DateTime
objects in the same way you use Date
and DateTime
objects in Ruby. Here are some examples:
# Get today's Solar Hijri date
a = Parsi::Date.today
# => #<Parsi::Date: 1391-08-09 (4912461/2,0/1)>
# Add 12 months to it
b = a >> 12
# => #<Parsi::Date: 1392-08-09 (4913193/2,0/1)>
# Count the number of Sundays between two dates
a.upto(b).select{ |d| d.sunday? }.count
# => 52
# Check if a given year is a leap year
Parsi::Date.leap?(1391)
# => true
Parsing and Formatting Dates
You can parse Solar Hijri date strings and format them in various styles:
# Parse a Solar Hijri date string
c = Parsi::Date.parse("1391/10/12")
# => #<Parsi::Date: 1391-10-12 (4912587/2,0)>
# Format the date in Persian
c.strftime("%A %d %B %Y")
# => "سهشنبه 12 دی 1391"
# Format the date in English
c.strftime("%^EA %d %^EB %Y")
# => "Seshambe 12 Day 1391"
Converting Between Calendars
You can easily convert between Gregorian and Solar Hijri dates:
# Convert a Gregorian date to Solar Hijri
d = Date.civil(2012, 10, 30).to_parsi
# => #<Parsi::Date: 1391-08-09 (4912461/2,0/1)>
# Convert a Solar Hijri date back to Gregorian
d.to_gregorian
# => #<Date: 2012-10-30 ((2456231j,0s,0n),+0s,2299161j)>
Installation
Add this line to your application's Gemfile:
gem 'parsi-date'
And then execute:
bundle install
Or install it yourself as:
gem install parsi-date
License
The Parsi Date library is open-source software licensed under the MIT license.
Contributing
If you would like to contribute to the development of the Parsi Date library, please feel free to fork the repository and submit pull requests. Contributions, bug reports, and feature requests are welcome and appreciated.