Class: Chronic::Ordinal

Inherits:
Tag
  • Object
show all
Defined in:
lib/chronic/ordinal.rb

Overview

:nodoc:

Direct Known Subclasses

OrdinalDay

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) ⇒ Object 



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# File 'lib/chronic/ordinal.rb', line 4

def self.scan(tokens)
  # for each token
  tokens.each_index do |i|
    if t = self.scan_for_ordinals(tokens[i]) then tokens[i].tag(t) end
    if t = self.scan_for_days(tokens[i]) then tokens[i].tag(t) end
  end
  tokens
end

.scan_for_days(token) ⇒ Object 



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# File 'lib/chronic/ordinal.rb', line 20

def self.scan_for_days(token)
  if token.word =~ /^(\d*)(st|nd|rd|th)$/
    unless $1.to_i > 31 || $1.to_i < 1
      return OrdinalDay.new(token.word.to_i)
    end
  end
  return nil
end

.scan_for_ordinals(token) ⇒ Object 



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# File 'lib/chronic/ordinal.rb', line 13

def self.scan_for_ordinals(token)
  if token.word =~ /^(\d*)(st|nd|rd|th)$/
    return Ordinal.new($1.to_i)
  end
  return nil
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/chronic/ordinal.rb', line 29

def to_s
  'ordinal'
end