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#!/usr/bin/env ruby
require_relative './util.rb'
# ISSUES
# new rule already in global g?
# => uniq!
# singletons? => uniq -D
# R+S = R => X
# variants?
#
def is_sub(first, second, dir='left')
if dir=='right'
first = first.reverse; second = second.reverse
end
second_index = 0
match = false
first_range = Range.new; second_range = Range.new
first.each_with_index { |i,first_index|
break if i.match('\[X,\d\]') #(/\[X,\d\]/)
break if second_index > second.size-1
if i == second[second_index]
if !match
first_range.from = first_index
first_range.to = first_index
second_range.from = second_index
second_range.to = second_index
match = true
else
first_range.to = first_index
second_range.to = second_index
end
second_index += 1
else
first_range.from = first_range.to = second_range.from = second_range.to = nil
end
}
if dir=='right' && first_range.from&&first_range.to&&second_range.from&&second_range.to
first_range.correct(first.size-1)
second_range.correct(second.size-1)
end
return first_range, second_range if (first_range.from&&first_range.to&&second_range.from&&second_range.to)&&
(first_range.from>0||first_range.to>0||second_range.from>0||second_range.to>0)
return false
end
def merge(r, s, r_f_range, s_f_range, r_e_range, s_e_range, dir)
#ret = [] ?
new_rule = Rule.new
new_rule.f = Array.new(s.f)
new_rule.e = Array.new(s.e)
new_rule.nt = r.nt
if dir == 'left'
return nil if r_f_range.from==0&&r_e_range.from==0
(r_f_range.from-1).downto(0) { |i| new_rule.f.unshift r.f[i] }
(r_e_range.from-1).downto(0) { |i| new_rule.e.unshift r.e[i] }
elsif dir == 'right'
return nil if r_f_range.from==r.f.size-1&&r_e_range.from==r.e.size-1
(r_f_range.to+1).upto(r.f.size-1) { |i| new_rule.f << r.f[i] }
(r_e_range.to+1).upto(r.e.size-1) { |i| new_rule.e << r.e[i] }
end
return new_rule
end
def test
a = ["der", "eurozone", "[X,1]", "die", "[X,2]"]
b = ["eurozone"]
x = ["the", "eurozone", "[X,1]", "[X,2]"]
y = ["eurozone", "members"]
r,s = is_sub(a,b)
puts "#{r} #{s}"
r,s = is_sub(b,a)
puts "#{r} #{s}"
r,s = is_sub(x,y)
puts "#{r} #{s}"
r,s = is_sub(y,x)
puts "#{r} #{s}"
puts
puts
a = ["schuld", "an", "[X,1]", "inflation"]
b = ["schuld"]
x = ["blamed", "for", "[X,1]", "inflation"]
y = ["for", "responsible"]
r,s = is_sub(a,b)
puts "#{r} #{s}"
r,s = is_sub(b,a)
puts "#{r} #{s}"
r,s = is_sub(x,y)
puts "#{r} #{s}"
r,s = is_sub(y,x)
puts "#{r} #{s}"
exit
end
test if ARGV[0] == 'test'
# main
def main
strings = {}
while line = STDIN.gets
ids, data = line.split "\t", 2
r_id, s_id = ids.split '+', 2
r_id = r_id.to_s
s_id = s_id.to_s
r_raw, s_raw = data.split ' <<<>>> ', 2
r = Rule.new r_raw, r_id
s = Rule.new s_raw, s_id
#STDERR.puts "reporter:status:processing rules #{r_id} and #{s_id}"
# left, R->S
range_f_first, range_f_second = is_sub(r.f, s.f)
range_e_first, range_e_second = is_sub(r.e, s.e)
if range_f_first&&range_f_second&&range_e_first&&range_e_second
new_rule = merge(r, s, range_f_first, range_f_first, range_e_first, range_e_second, 'left')
if new_rule && !strings.has_key?(new_rule.rule_id_string)
#puts "R: #{r.f} ||| #{r.e}\nS: #{s.f} ||| #{s.e}"
#puts "f:(#{range_f_first} #{range_f_second}) e:(#{range_e_first} #{range_e_second})\n"
puts new_rule.to_s
strings[new_rule.rule_id_string] = true
#puts "\n"
end
end
# left, S->R
range_f_first, range_f_second = is_sub(s.f, r.f)
range_e_first, range_e_second = is_sub(s.e, r.e)
if range_f_first&&range_f_second&&range_e_first&&range_e_second
new_rule = merge(s, r, range_f_first, range_f_first, range_e_first, range_e_second, 'left')
if new_rule && !strings.has_key?(new_rule.rule_id_string)
#puts "S: #{s.f} ||| #{s.e}\nR: #{r.f} ||| #{r.e}"
#puts "f:(#{range_f_first} #{range_f_second}) e:(#{range_e_first} #{range_e_second})\n"
puts new_rule.to_s
strings[new_rule.rule_id_string] = true
#puts "\n"
end
end
# right, R->S
range_f_first, range_f_second = is_sub(r.f, s.f, 'right')
range_e_first, range_e_second = is_sub(r.e, s.e, 'right')
if range_f_first&&range_f_second&&range_e_first&&range_e_second
new_rule = merge(r, s, range_f_first, range_f_first, range_e_first, range_e_second, 'right')
if new_rule && !strings.has_key?(new_rule.rule_id_string)
#puts "Rr: #{r.f} ||| #{r.e}\nSr: #{s.f} ||| #{s.e}"
#puts "f:(#{range_f_first} #{range_f_second}) e:(#{range_e_first} #{range_e_second})\n"
puts new_rule.to_s
strings[new_rule.rule_id_string] = true
#puts "\n"
end
end
# right, S->R
range_f_first, range_f_second = is_sub(s.f, r.f, 'right')
range_e_first, range_e_second = is_sub(s.e, r.e, 'right')
if range_f_first&&range_f_second&&range_e_first&&range_e_second
new_rule = merge(s, r, range_f_first, range_f_first, range_e_first, range_e_second, 'right')
if new_rule && !strings.has_key?(new_rule.rule_id_string)
#puts "Sr: #{s.f} ||| #{s.e}\nRr: #{r.f} ||| #{r.e}"
#puts "f:(#{range_f_first} #{range_f_second}) e:(#{range_e_first} #{range_e_second})\n"
puts new_rule.to_s
strings[new_rule.rule_id_string] = true if new_rule
#puts "\n"
end
end
end
end
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