From d92209e3ec223a380c7ad540622caa15712c490c Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Wed, 18 Jun 2014 08:28:36 +0200
Subject: better integration, chart.to_json

---
 parse.rb | 45 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

(limited to 'parse.rb')

diff --git a/parse.rb b/parse.rb
index 8005401..b39b456 100644
--- a/parse.rb
+++ b/parse.rb
@@ -16,6 +16,7 @@ end
 class Chart
 
   def initialize n
+    @n = n
     @m = []
     (n+1).times {
       a = []
@@ -38,8 +39,48 @@ class Chart
     return @b["#{i},#{j},#{symbol}"]
   end
 
-  def to_json
-    #TODO
+  def to_json weights=nil
+    id = 0
+    json_s = "{\n"
+    json_s += "\"weights\":#{weights.to_json},\n"
+    json_s += "\"nodes\":\n"
+    json_s += "[\n"
+    seen = {}
+    Parse::visit(1, 0, @n) { |i,j|
+      self.at(i,j).each { |item|
+       _ = "#{item.lhs.symbol},#{i},#{j}"
+       if !seen[_]
+         json_s += "{ \"id\":#{id}, \"cat\":\"#{item.lhs.symbol.to_json.slice(1..-1).chomp('"')}\", \"span\":[#{i},#{j}] },\n"
+         seen[_] = id
+         id += 1
+       end
+      }
+    }
+    json_s += "{ \"id\":-1, \"cat\":\"root\", \"span\":[-1, -1] }\n"
+    json_s += "],\n"
+    json_s += "\"edges\":\n"
+    json_s += "[\n"
+    a = []
+    Parse::visit(1, 0, @n) { |i,j|
+      self.at(i,j).each { |item|
+        _ = '{ '
+        _ += "\"head\":#{seen[item.lhs.symbol+','+i.to_s+','+j.to_s]}, "
+        _ += "\"rule\":\"[#{item.lhs.symbol.to_json.slice(1..-1).chomp('"')}] ||| "
+        _ += "#{item.rhs.map{|x| (x.class==Grammar::NT ? '['+x.symbol.to_json.slice(1..-1).chomp('"')+','+x.index.to_s+']' : x.word.to_json).slice(1..-1).chomp('"') }.join(' ')} ||| #{item.target.map{|x| (x.class==Grammar::NT ? '['+x.symbol.to_json.slice(1..-1).chomp('"')+','+(x.index+1).to_s+']' : x.word.to_json.slice(1..-1).chomp('"')) }.join(' ')}\ |||\", "
+        if item.tail_spans.empty?
+          _ += "\"tails\":[-1], "
+        else
+          _ += "\"tails\":[#{item.rhs.zip((0..item.rhs.size-1).map{|q| item.tail_spans[q] }).select{|x| x[0].class==Grammar::NT }.map{|x| seen[x[0].symbol.to_json.slice(1..-1).chomp('"')+','+x[1].left.to_s+','+x[1].right.to_s]}.join ', '}], "
+        end
+        _ += "\"f\":#{(item.f ? item.f.to_json : '{}')} }"
+        a << _
+      }
+    }
+    json_s += a.join ",\n"
+    json_s += "\n]\n"
+    json_s += "}\n"
+
+    return json_s
   end
 end
 
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