Class: TExp::DayInterval
Instance Attribute Summary collapse
-
#base_date ⇒ Object
readonly
Returns the value of attribute base_date.
Class Method Summary collapse
Instance Method Summary collapse
-
#encode(codes) ⇒ Object
Encode the temporal expression into
codes
. -
#includes?(date) ⇒ Boolean
Is
date
included in the temporal expression. -
#initialize(base_date, interval) ⇒ DayInterval
constructor
A new instance of DayInterval.
-
#inspect ⇒ Object
Human readable version of the temporal expression.
-
#reanchor(new_anchor_date) ⇒ Object
Create a new temporal expression with a new anchor date.
Methods inherited from Base
#*, #+, #-, #-@, #each, #first_day_of_window, #last_day_of_window, register_parse_callback, #to_s, #window
Constructor Details
#initialize(base_date, interval) ⇒ DayInterval
Returns a new instance of DayInterval.
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# File 'lib/texp/day_interval.rb', line 7 def initialize(base_date, interval) @base_date = base_date.kind_of?(Date) ? base_date : nil @interval = interval end |
Instance Attribute Details
#base_date ⇒ Object (readonly)
Returns the value of attribute base_date.
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# File 'lib/texp/day_interval.rb', line 5 def base_date @base_date end |
Class Method Details
.parse_callback(stack) ⇒ Object
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# File 'lib/texp/day_interval.rb', line 52 def parse_callback(stack) interval = stack.pop date = stack.pop stack.push TExp::DayInterval.new(date, interval) end |
Instance Method Details
#encode(codes) ⇒ Object
Encode the temporal expression into codes
.
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# File 'lib/texp/day_interval.rb', line 36 def encode(codes) if @base_date encode_date(codes, @base_date) else codes << 0 end codes << ',' << @interval << encoding_token end |
#includes?(date) ⇒ Boolean
Is date
included in the temporal expression.
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# File 'lib/texp/day_interval.rb', line 13 def includes?(date) if @base_date.nil? || date < @base_date false else ((date.mjd - base_mjd) % @interval) == 0 end end |
#inspect ⇒ Object
Human readable version of the temporal expression.
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# File 'lib/texp/day_interval.rb', line 27 def inspect if @interval == 1 "every day starting on #{humanize_date(@base_date)}" else "every #{ordinal(@interval)} day starting on #{humanize_date(@base_date)}" end end |
#reanchor(new_anchor_date) ⇒ Object
Create a new temporal expression with a new anchor date.
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# File 'lib/texp/day_interval.rb', line 22 def reanchor(new_anchor_date) self.class.new(new_anchor_date, @interval) end |