Module: Fugit::Nat::Parser

Includes:
Raabro
Defined in:
lib/fugit/nat.rb

Constant Summary collapse

NUMS = 
%w[
zero
one two three four five six seven eight nine
ten eleven twelve ]
WEEKDAYS = 
Fugit::Cron::Parser::WEEKDS + Fugit::Cron::Parser::WEEKDAYS
NHOURS = 
{ 'noon' => [ 12, 0 ], 'midnight' => [ 0, 0 ] }

Instance Method Summary collapse

Instance Method Details

#biz_day(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 89

def biz_day(i); rex(:biz_day, i, /(biz|business|week) *day/i); end

#datum(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 94

def datum(i)
  alt(nil, i,
    :flag,
    :plain_day, :biz_day, :name_day,
    :name_hour, :numeral_hour, :digital_hour, :simple_hour)
end

#digital_hour(i) ⇒ Object

piece parsers bottom to top



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# File 'lib/fugit/nat.rb', line 72

def digital_hour(i)
  rex(:digital_hour, i, /(2[0-4]|[01][0-9]):?[0-5]\d/)
end

#elt(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 103

def elt(i); alt(nil, i, :sugar, :datum); end

#flag(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 92

def flag(i); rex(:flag, i, /(every|day|at|after|am|pm)/i); end

#hour(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 84

def hour(i)
  alt(nil, i, :numeral_hour, :name_hour, :digital_hour, :simple_hour);
end

#name_day(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 90

def name_day(i); rex(:name_day, i, /#{WEEKDAYS.reverse.join('|')}/i); end

#name_hour(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 81

def name_hour(i)
  rex(:name_hour, i, /(#{NHOURS.keys.join('|')})/i)
end

#nat(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 104

def nat(i); rep(:nat, i, :elt, 1); end

#numeral_hour(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 78

def numeral_hour(i)
  rex(:numeral_hour, i, /(#{NUMS.join('|')})/i)
end

#plain_day(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 88

def plain_day(i); rex(:plain_day, i, /day/i); end

#rewrite_nat(t) ⇒ Object

rewrite parsed tree



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# File 'lib/fugit/nat.rb', line 108

def rewrite_nat(t)

#Raabro.pp(t)
  t
    .subgather(nil)
    .collect { |tt|

      k = tt.name
      v = tt.string.downcase

      case k
      when :numeral_hour
        [ k, NUMS.index(v) ]
      when :simple_hour
        [ k, v.to_i ]
      when :digital_hour
        v = v.gsub(/:/, '')
        [ k, [ v[0, 2], v[2, 2] ] ]
      when :name_hour
        [ :digital_hour, NHOURS[v] ]
      when :name_day
        [ k, WEEKDAYS.index(v[0, 3]) ]
      else
        [ k, v ]
      end
    }
end

#simple_hour(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 75

def simple_hour(i)
  rex(:simple_hour, i, /(2[0-4]|[01]?[0-9])/)
end

#sugar(i) ⇒ Object 



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# File 'lib/fugit/nat.rb', line 101

def sugar(i); rex(nil, i, /(and|or|[, \t]+)/i); end