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author | Patrick Simianer <p@simianer.de> | 2014-06-16 17:44:07 +0200 |
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committer | Patrick Simianer <p@simianer.de> | 2014-06-16 17:44:07 +0200 |
commit | 4059a5d048cb0f72872c98073ef1ce120a30d78c (patch) | |
tree | 4fbff0dc62c5ef3deea0ffdec578e3f2c0ed74b6 /lib/nlp_ruby/grammar.rb | |
parent | 912ff6aebcf4f89f9e64b5f59956dbf7d8f624e3 (diff) |
renaming to zipf
Diffstat (limited to 'lib/nlp_ruby/grammar.rb')
-rw-r--r-- | lib/nlp_ruby/grammar.rb | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/lib/nlp_ruby/grammar.rb b/lib/nlp_ruby/grammar.rb deleted file mode 100644 index 7bd8fe6..0000000 --- a/lib/nlp_ruby/grammar.rb +++ /dev/null @@ -1,122 +0,0 @@ -module Grammar - -class T - attr_accessor :word - - def initialize word - @word = word - end - - def to_s - "T<#{@word}>" - end -end - -class NT - attr_accessor :symbol, :index, :span - - def initialize symbol, index=0 - @symbol = symbol - @index = index - @span = Span.new - end - - def to_s - "NT(#{@span.left},#{@span.right})<#{@symbol},#{@index}>" - end -end - -class Rule - attr_accessor :lhs, :rhs, :e - - def initialize lhs=nil, rhs=[], e='' - @lhs = lhs - @rhs = rhs - @e = e - end - - def to_s - "#{lhs} -> #{rhs.map{ |i| i.to_s }.join ' '} [arity=#{arity}] ||| #{@e}" - end - - def arity - rhs.select { |i| i.class == NT }.size - end - - def from_s s - _ = splitpipe s, 3 - @lhs = NT.new _[0].strip.gsub!(/(\[|\])/, "") - _[1].split.each { |x| - x.strip! - if x[0]=='[' && x[x.size-1] == ']' - @rhs << NT.new(x.gsub!(/(\[|\])/, "").split(',')[0]) - else - @rhs << T.new(x) - end - } - @e = _[2] - end - - def self.from_s s - r = self.new - r.from_s s - return r - end -end - -class Span - attr_accessor :left, :right - - def initialize left=nil, right=nil - @left = left - @right = right - end -end - -class Grammar - attr_accessor :rules, :startn, :startt, :flat - - def initialize fn - @rules = []; @startn = []; @startt = [] ;@flat = [] - ReadFile.readlines_strip(fn).each_with_index { |s,i| - STDERR.write '.'; STDERR.write " #{i+1}\n" if (i+1)%80==0 - @rules << Rule.from_s(s) - if @rules.last.rhs.first.class == NT - @startn << @rules.last - else - if rules.last.arity == 0 - @flat << @rules.last - else - @startt << @rules.last - end - end - } - STDERR.write "\n" - end - - def to_s - s = '' - @rules.each { |r| s += r.to_s+"\n" } - return s - end - - def add_glue_rules - @rules.map { |r| r.lhs.symbol }.select { |s| s != 'S' }.uniq.each { |symbol| - @rules << Rule.new(NT.new('S'), [NT.new(symbol)]) - @startn << @rules.last - @rules << Rule.new(NT.new('S'), [NT.new('S'), NT.new('X')]) - @startn << @rules.last - } - end - - def add_pass_through_rules s - s.each { |word| - @rules << Rule.new(NT.new('X'), [T.new(word)]) - @flat << @rules.last - } - end -end - - -end # module - |