1 files changed, 112 insertions, 0 deletions
diff --git a/src/functionalizer.py b/src/functionalizer.py
new file mode 100644
index 0000000..66325a0
--- /dev/null
+++ b/src/functionalizer.py
@@ -0,0 +1,112 @@
+import logging
+import util
+import sys
+
+class Functionalizer:
+
+  def __init__(self, config):
+    self.config = config
+
+  def run(self):
+    hyp_file = open('%s/hyp.mrl.nbest' % self.config.experiment_dir)
+    fun_file = open('%s/hyp.fun' % self.config.experiment_dir, 'w')
+
+    hypsets = []
+    hypset = []
+    last_eid = 0
+    for line in hyp_file:
+      parts = line.split('|||')
+      eid = int(parts[0])
+      if eid != last_eid:
+        hypsets.append(hypset)
+        hypset = []
+        last_eid = eid
+      score = parts[2] + ' ||| ' + parts[3].strip()
+      hyp = parts[1].strip()
+      hypset.append((hyp,score))
+    hypsets.append(hypset)
+
+    counter = 0
+    for hypset in hypsets:
+      hypset = list(reversed(hypset))
+      while hypset:
+        hyp, score = hypset.pop()
+        fun = self.functionalize(hyp)
+        if fun:
+          print >>fun_file, counter, '|||', fun, '|||', score
+          break
+      counter += 1
+
+  #xc = 0
+  def functionalize(self, mrl):
+
+    #if '_@0' in mrl and 'cityid@2' in mrl:
+    #  #print '==='
+    #  #print mrl
+    #  self.xc += 1
+    #  if self.xc > 5:
+    #    exit()
+
+    stack = []
+    r = []
+    tokens = list(reversed(mrl.split()))
+
+    #print tokens
+
+    while tokens:
+      it = tokens.pop()
+      #print it
+      if util.ARITY_SEP not in it:
+        token = it
+        arity = util.ARITY_STR
+        logging.warn('unrecognized token: %s', it)
+      else:
+        token, arity = it.rsplit(util.ARITY_SEP)
+      if arity == util.ARITY_STR:
+        arity = 0
+        arity_str = True
+      elif not (arity == util.ARITY_ANY):
+        arity = int(arity)
+        arity_str = False
+      
+      if arity == util.ARITY_ANY or arity > 0:
+        r.append(token)
+        r.append('(')
+        stack.append(arity)
+      else:
+        assert arity == 0
+        if arity_str:
+          r.append("'%s'" % token.replace('_', ' '))
+        else:
+          r.append(token)
+          #print r
+        while stack:
+          top = stack.pop()
+          if top == util.ARITY_ANY and tokens:
+            r.append(',')
+            stack.append(util.ARITY_ANY)
+            break
+          elif top != util.ARITY_ANY and top > 1:
+            r.append(',')
+            stack.append(top - 1)
+            break
+          else:
+            r.append(')')
+
+        if not stack and tokens:
+          return None
+
+    if stack:
+      return None
+
+    r = ''.join(r)
+
+    # nasty hacks to fix misplaced _
+    if '(_' in r:
+      return None
+    if ',_' in r and not ('cityid' in r):
+      return None
+    if '_),_)' in r:
+      return None
+
+    return r