Module: Qreport::TimeParser::TimeUnit

Includes:
Comparable
Included in:
TimeInterval, TimeRelative, TimeWithUnit
Defined in:
lib/qreport/time_parser/time_unit.rb

Constant Summary collapse

UNIT_REGEXP = 
(@@unit_interval.keys + 
 @@unit_alias.keys + 
 @@unit_alias.values).
uniq.
map(&:to_s).
reject(&:empty?).
sort_by(&:size) * '|'
@@unit_alias = 
{
  :second => :sec,
  :s => :sec,
  :minute => :min,
  :min => :min,
  :m => :min,
  :hr => :hour,
  :h => :hour,
  :d => :day,
  :w => :week,
  :mo => :mon,
  :month => :mon,
  :mth => :mon,
  :yr => :year,
  :y => :year,
}
@@unit_interval =

in seconds

{
  nil => 1,
  :sec => 1,
  :min => 60,
  :hour => 60 * 60,
  :day => 60 * 60 * 24, # + 1 leap second
  :week => 60 * 60 * 24 * 7,
  :mon => (60 * 60 * 24) * 31,
  :year => (60 * 60 * 24) * 365, # + 1 leap day
  :decade => (60 * 60 * 24) * 3650,
  :century => (60 * 60 * 24) * 36500,
  :millenium => (60 * 60 * 24) * 365000,
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#unit ⇒ Object (readonly)

Returns the value of attribute unit.



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# File 'lib/qreport/time_parser/time_unit.rb', line 7

def unit
  @unit
end

Class Method Details

.pluralize(str) ⇒ Object 



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# File 'lib/qreport/time_parser/time_unit.rb', line 61

def self.pluralize str
  str = str.to_s
  case str
  when "day"
    "days"
  when /y\Z/
    str.sub(/y\Z/, 'ies')
  else
    str + "s"
  end
end

Instance Method Details

#<=>(x) ⇒ Object 



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# File 'lib/qreport/time_parser/time_unit.rb', line 99

def <=> x
  case x
  when TimeInterval
    unit_interval <=> x.unit_interval
  else
    unit_interval <=> x
  end
end

#new(*args) ⇒ Object 



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# File 'lib/qreport/time_parser/time_unit.rb', line 9

def new *args
  self.class.new *args
end

#normalize! ⇒ Object 



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# File 'lib/qreport/time_parser/time_unit.rb', line 13

def normalize!
  case @unit
  when nil
  when Symbol
    @unit = @@unit_alias[@unit] || @unit
  when String
    @unit = @unit.downcase.to_sym
    @unit = @@unit_alias[@unit] || @unit
  when TimeInterval, TimeWithUnit
    @unit = @unit.unit
  else
    raise ArgumentError, @unit.inspect
  end
  self
end

#unit_interval ⇒ Object

$stderr.puts “UNIT_REGEXP = #UNIT_REGEXP”



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# File 'lib/qreport/time_parser/time_unit.rb', line 94

def unit_interval
  @unit_interval ||=
    TimeInterval.new(1, @unit)
end

#unit_multiplier(unit = @unit) ⇒ Object 



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# File 'lib/qreport/time_parser/time_unit.rb', line 80

def unit_multiplier unit = @unit
  @@unit_interval[unit] || 1
end