spring cleaning

1 files changed, 0 insertions, 139 deletions

diff --git a/grammar.rb b/grammar.rb
deleted file mode 100644
index e91c0f6..0000000
--- a/grammar.rb
+++ /dev/null
@@ -1,139 +0,0 @@
-module Grammar
-
-
-class T
-  attr_accessor :word
-
-  def initialize word
-    @word = word
-  end
-
-  def to_s
-    @word
-  end
-end
-
-class NT
-  attr_accessor :symbol, :index
-
-  def initialize symbol=nil, index=-1
-    @symbol = symbol
-    @index  = index
-  end
-
-  #FIXME? symbol should not contain [, ] or ",
-  #       else we're in trouble
-  def from_s s
-    @symbol, @index = s.delete('[]').split ','
-    @symbol.strip!
-    @index = @index.to_i-1
-  end
-
-  def self.from_s s
-    new = NT.new
-    new.from_s s
-    return new
-  end
-
-  #FIXME? indexed by 1
-  def to_s
-    return "[#{@symbol},#{@index+1}]" if @index>=0
-    return "[#{@symbol}]"
-  end
-end
-
-class Rule
-  attr_accessor :lhs, :rhs, :target, :map, :f
-
-  def initialize lhs=NT.new, rhs=[], target=[], map=[], f=SparseVector.new, arity=0
-    @lhs    = lhs
-    @rhs    = rhs
-    @target = target
-    @map    = map
-    @f      = f
-    @arity  = arity
-  end
-
-  def read_rhs_ s, make_meta=false
-    a = []
-    s.split.map { |x|
-      x.strip!
-      if x[0] == '[' && x[x.size-1] == ']'
-        a << NT.from_s(x)
-        if make_meta
-          @map << a.last.index
-          @arity += 1
-        end
-      else
-        a << T.new(x)
-      end
-    }
-    return a
-  end
-
-  def from_s s
-    lhs, rhs, target, f = splitpipe s, 3
-    @lhs    = NT.from_s lhs
-    @rhs    = read_rhs_ rhs, true
-    @target = read_rhs_ target
-    @f      = (f ? SparseVector.from_kv(f, '=', ' ') : SparseVector.new)
-  end
-
-  def self.from_s s
-    r = Rule.new
-    r.from_s s
-    return r
-  end
-
-  def to_s
-    "#{@lhs.to_s} ||| #{@rhs.map { |x| x.to_s }.join ' '} ||| #{@target.map { |x| x.to_s }.join ' '}"
-  end
-end
-
-class Grammar
-  attr_accessor :rules, :start_nt, :start_t, :flat
-
-  def initialize fn
-    @rules = []; @start_nt = []; @start_t = []; @flat = []
-    n = 0
-    ReadFile.readlines_strip(fn).each_with_index { |s,i|
-      STDERR.write '.'; STDERR.write " #{i+1}\n" if (i+1)%40==0
-      n += 1
-      @rules << Rule.from_s(s)
-      if @rules.last.rhs.first.class == NT
-        @start_nt << @rules.last
-      else
-        if rules.last.arity == 0
-          @flat << @rules.last
-        else
-          @start_t << @rules.last
-        end
-      end
-    }
-    STDERR.write " #{n}\n"
-  end
-
-  def to_s
-    @rules.map { |r| r.to_s }.join "\n"
-  end
-
-  def add_glue
-    @rules.map { |r| r.lhs.symbol }.select { |s| s != 'S' }.uniq.each { |symbol|
-      @rules << Rule.new(NT.new('S'), [NT.new(symbol, 0)], [NT.new(symbol, 0)], [0])
-      @start_nt << @rules.last
-      @rules << Rule.new(NT.new('S'), [NT.new('S', 0), NT.new('X', 1)], [NT.new('S', 0), NT.new('X', 1)], [0, 1])
-      @start_nt << @rules.last
-    }
-  end
-
-  def add_pass_through a
-    a.each { |word|
-      @rules << Rule.new(NT.new('X'), [T.new(word)], [T.new(word)])
-      @flat << @rules.last
-    }
-  end
-end
-
-
-end #module
-