From 19e1c5a5fbe178b91b5e2995584b5e72a7a5940f Mon Sep 17 00:00:00 2001
From: mjdenkowski <michael.j.denkowski@gmail.com>
Date: Thu, 7 Aug 2014 16:26:15 -0400
Subject: Don't depend on realtime in case people don't want to build pycdec.

---
 word-aligner/force_align.py | 69 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 64 insertions(+), 5 deletions(-)

(limited to 'word-aligner')

diff --git a/word-aligner/force_align.py b/word-aligner/force_align.py
index 8386e6a5..5cef9026 100755
--- a/word-aligner/force_align.py
+++ b/word-aligner/force_align.py
@@ -1,11 +1,68 @@
 #!/usr/bin/env python
 
 import os
+import subprocess
 import sys
+import threading
 
-# Hook into realtime
-sys.path.append(os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'realtime', 'rt'))
-from aligner import ForceAligner
+# Simplified, non-threadsafe version for force_align.py
+# Use the version in realtime for development
+class Aligner:
+
+    def __init__(self, fwd_params, fwd_err, rev_params, rev_err, heuristic='grow-diag-final-and'):
+
+        cdec_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+        fast_align = os.path.join(cdec_root, 'word-aligner', 'fast_align')
+        atools = os.path.join(cdec_root, 'utils', 'atools')
+
+        (fwd_T, fwd_m) = self.read_err(fwd_err)
+        (rev_T, rev_m) = self.read_err(rev_err)
+
+        fwd_cmd = [fast_align, '-i', '-', '-d', '-T', fwd_T, '-m', fwd_m, '-f', fwd_params]
+        rev_cmd = [fast_align, '-i', '-', '-d', '-T', rev_T, '-m', rev_m, '-f', rev_params, '-r']
+        tools_cmd = [atools, '-i', '-', '-j', '-', '-c', heuristic]
+
+        self.fwd_align = popen_io(fwd_cmd)
+        self.rev_align = popen_io(rev_cmd)
+        self.tools = popen_io(tools_cmd)
+
+    def align(self, line):
+        self.fwd_align.stdin.write('{}\n'.format(line))
+        self.rev_align.stdin.write('{}\n'.format(line))
+        # f words ||| e words ||| links ||| score
+        fwd_line = self.fwd_align.stdout.readline().split('|||')[2].strip()
+        rev_line = self.rev_align.stdout.readline().split('|||')[2].strip()
+        self.tools.stdin.write('{}\n'.format(fwd_line))
+        self.tools.stdin.write('{}\n'.format(rev_line))
+        al_line = self.tools.stdout.readline().strip()
+        return al_line
+ 
+    def close(self):
+        self.fwd_align.stdin.close()
+        self.fwd_align.wait()
+        self.rev_align.stdin.close()
+        self.rev_align.wait()
+        self.tools.stdin.close()
+        self.tools.wait()
+
+    def read_err(self, err):
+        (T, m) = ('', '')
+        for line in open(err):
+            # expected target length = source length * N
+            if 'expected target length' in line:
+                m = line.split()[-1]
+            # final tension: N
+            elif 'final tension' in line:
+                T = line.split()[-1]
+        return (T, m)
+
+def popen_io(cmd):
+    p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    def consume(s):
+        for _ in s:
+            pass
+    threading.Thread(target=consume, args=(p.stderr,)).start()
+    return p
 
 def main():
 
@@ -20,16 +77,18 @@ def main():
         sys.stderr.write('where heuristic is one of: (intersect union grow-diag grow-diag-final grow-diag-final-and) default=grow-diag-final-and\n')
         sys.exit(2)
 
-    aligner = ForceAligner(*sys.argv[1:])
+    aligner = Aligner(*sys.argv[1:])
 
     while True:
         line = sys.stdin.readline()
         if not line:
             break
-        sys.stdout.write('{}\n'.format(aligner.align_formatted(line.strip())))
+        sys.stdout.write('{}\n'.format(aligner.align(line.strip())))
         sys.stdout.flush()
 
     aligner.close()
     
 if __name__ == '__main__':
     main()
+
+
-- 
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