Class: Chronic::Repeater
- Inherits:
-
Tag
- Object
- Tag
- Chronic::Repeater
show all
- Defined in:
- lib/chronic/repeater.rb
Overview
Direct Known Subclasses
RepeaterDay, RepeaterDayName, RepeaterDayPortion, RepeaterFortnight, RepeaterHour, RepeaterMinute, RepeaterMonth, RepeaterMonthName, RepeaterSeason, RepeaterSecond, RepeaterTime, RepeaterWeek, RepeaterWeekend, RepeaterYear
Instance Attribute Summary
Attributes inherited from Tag
#type
Class Method Summary
collapse
Instance Method Summary
collapse
Methods inherited from Tag
#initialize, #start=
Constructor Details
This class inherits a constructor from Chronic::Tag
Class Method Details
.scan(tokens, options) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 2
def self.scan(tokens, options)
tokens.each_index do |i|
if t = self.scan_for_month_names(tokens[i]) then tokens[i].tag(t); next end
if t = self.scan_for_day_names(tokens[i]) then tokens[i].tag(t); next end
if t = self.scan_for_day_portions(tokens[i]) then tokens[i].tag(t); next end
if t = self.scan_for_times(tokens[i], options) then tokens[i].tag(t); next end
if t = self.scan_for_units(tokens[i]) then tokens[i].tag(t); next end
end
tokens
end
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.scan_for_day_names(token) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 33
def self.scan_for_day_names(token)
scanner = {/^m[ou]n(day)?$/ => :monday,
/^t(ue|eu|oo|u|)s(day)?$/ => :tuesday,
/^we(dnes|nds|nns)day$/ => :wednesday,
/^wed$/ => :wednesday,
/^th(urs|ers)day$/ => :thursday,
/^thu$/ => :thursday,
/^fr[iy](day)?$/ => :friday,
/^sat(t?[ue]rday)?$/ => :saturday,
/^su[nm](day)?$/ => :sunday}
scanner.keys.each do |scanner_item|
return Chronic::RepeaterDayName.new(scanner[scanner_item]) if scanner_item =~ token.word
end
return nil
end
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.scan_for_day_portions(token) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 49
def self.scan_for_day_portions(token)
scanner = {/^ams?$/ => :am,
/^pms?$/ => :pm,
/^mornings?$/ => :morning,
/^afternoons?$/ => :afternoon,
/^evenings?$/ => :evening,
/^(night|nite)s?$/ => :night}
scanner.keys.each do |scanner_item|
return Chronic::RepeaterDayPortion.new(scanner[scanner_item]) if scanner_item =~ token.word
end
return nil
end
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.scan_for_month_names(token) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 14
def self.scan_for_month_names(token)
scanner = {/^jan\.?(uary)?$/ => :january,
/^feb\.?(ruary)?$/ => :february,
/^mar\.?(ch)?$/ => :march,
/^apr\.?(il)?$/ => :april,
/^may$/ => :may,
/^jun\.?e?$/ => :june,
/^jul\.?y?$/ => :july,
/^aug\.?(ust)?$/ => :august,
/^sep\.?(t\.?|tember)?$/ => :september,
/^oct\.?(ober)?$/ => :october,
/^nov\.?(ember)?$/ => :november,
/^dec\.?(ember)?$/ => :december}
scanner.keys.each do |scanner_item|
return Chronic::RepeaterMonthName.new(scanner[scanner_item]) if scanner_item =~ token.word
end
return nil
end
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.scan_for_times(token, options) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 62
def self.scan_for_times(token, options)
if token.word =~ /^\d{1,2}(:?\d{2})?([\.:]?\d{2})?$/
return Chronic::RepeaterTime.new(token.word, options)
end
return nil
end
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.scan_for_units(token) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 69
def self.scan_for_units(token)
scanner = {/^years?$/ => :year,
/^seasons?$/ => :season,
/^months?$/ => :month,
/^fortnights?$/ => :fortnight,
/^weeks?$/ => :week,
/^weekends?$/ => :weekend,
/^days?$/ => :day,
/^hours?$/ => :hour,
/^minutes?$/ => :minute,
/^seconds?$/ => :second}
scanner.keys.each do |scanner_item|
if scanner_item =~ token.word
klass_name = 'Chronic::Repeater' + scanner[scanner_item].to_s.capitalize
klass = eval(klass_name)
return klass.new(scanner[scanner_item])
end
end
return nil
end
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Instance Method Details
#<=>(other) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 90
def <=>(other)
width <=> other.width
end
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#next(pointer) ⇒ Object
returns the next occurance of this repeatable.
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# File 'lib/chronic/repeater.rb', line 100
def next(pointer)
!@now.nil? || raise("Start point must be set before calling #next")
[:future, :none, :past].include?(pointer) || raise("First argument 'pointer' must be one of :past or :future")
end
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#this(pointer) ⇒ Object
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# File 'lib/chronic/repeater.rb', line 106
def this(pointer)
!@now.nil? || raise("Start point must be set before calling #this")
[:future, :past, :none].include?(pointer) || raise("First argument 'pointer' must be one of :past, :future, :none")
end
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#to_s ⇒ Object
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# File 'lib/chronic/repeater.rb', line 111
def to_s
'repeater'
end
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#width ⇒ Object
returns the width (in seconds or months) of this repeatable.
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# File 'lib/chronic/repeater.rb', line 95
def width
raise("Repeatable#width must be overridden in subclasses")
end
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