Runt is a Ruby implementation of select temporal patterns by Martin Fowler described in this paper.
Temporal expressions allow a developer to define patterns of date recurrence using set expressions.
- gem install runt
require'date'require'runt'includeRunta_monday=Date.new(2013,5,13)# Monday, May 13 - has "day-level" precisiona_wednesday=DateTime.new(2013,5,15,8,45)# Wednesday, May 15 at 8:45am - has "minute-level" precisionmonday_expr=DIWeek.new(Mon)# Matches any Mondaymonday_expr.include?(a_monday)# => truemonday_expr.include?(a_wednesday)# => falsewednesday_expr=DIWeek.new(Wed)# Matches any Wednesdaywednesday_expr.include?(a_monday)# => falsewednesday_expr.include?(a_wednesday)# => true## Use an "OR" between two expressions#mon_or_wed_expr=monday_expr | wednesday_expr# Matches any Monday OR any Wednesdaymon_or_wed_expr.include?(a_monday)# => truemon_or_wed_expr.include?(a_wednesday)# => truedaily_8_to_11_expr=REDay.new(8,00,11,00,false)# Matches from 8am to 11am on ANY date.# The 'false' argument says not to auto-match# expressions of lesser precision.at_9=DateTime.new(2013,5,12,9,0)# Sunday, May 12 at 9:00amdaily_8_to_11_expr.include?(at_9)# => true## On the next line, the given Date instance is "promoted" to the minute-level precision# required by the temporal expression so the time component defaults to 00:00#daily_8_to_11_expr.include?(a_monday)# => false## Use an "AND" between two expressions to match## (Monday OR Wednesday) AND (8am to 11am)#mon_or_wed_8_to_11_expr=mon_or_wed_expr & daily_8_to_11_exprmon_or_wed_8_to_11_expr.include?(a_monday)# => false - 00:00 is not between 8:00 and 11:00mon_or_wed_8_to_11_expr.include?(at_9)# => false - on Sundaymon_or_wed_8_to_11_expr.include?(a_wednesday)# => true - a Wednesday at 8:45Author: Matthew Lipper mlipper@gmail.com
Requires: Tested with J/Ruby 1.8.7, 1.9.3 and Ruby 2.0.0, 2.2
License: Released under the MIT License (see LICENSE.txt).
This software is provided "as is" and without any express or implied warranties, including, without limitation, the implied warranties of merchantibility and fitness for a particular purpose.
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