Massive renaming!

33-trinity/tf-32-active.py

@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+import sys, operator, string, os, threading, re
+from util import getch, cls, get_input
+from time import sleep
+
+lock = threading.Lock()
+
+#
+# The active view
+#
+class FreqObserver(threading.Thread):
+    def __init__(self, freqs):
+        threading.Thread.__init__(self)
+        self.daemon,self._end = True, False
+        # freqs is the part of the model to be observed
+        self._freqs = freqs
+        self._freqs_0 = sorted(self._freqs.items(), key=operator.itemgetter(1), reverse=True)[:25]
+        self.start()
+
+    def run(self):
+        while not self._end:
+            self._update_view()
+            sleep(0.1)
+        self._update_view()
+
+    def stop(self):
+        self._end = True
+
+    def _update_view(self):
+        lock.acquire()
+        freqs_1 = sorted(self._freqs.items(), key=operator.itemgetter(1), reverse=True)[:25]
+        lock.release()
+        if (freqs_1 != self._freqs_0):
+            self._update_display(freqs_1)
+            self._freqs_0 = freqs_1
+
+    def _update_display(self, tuples):
+        def refresh_screen(data):
+            # clear screen
+            cls()
+            print(data)
+            sys.stdout.flush()
+
+        data_str = ""
+        for (w, c) in tuples:
+            data_str += str(w) + ' - ' + str(c) + '\n'
+        refresh_screen(data_str)
+
+#
+# The model
+#
+class WordsCounter:
+    freqs = {}
+    def count(self):
+        def non_stop_words():
+            stopwords = set(open('../stop_words.txt').read().split(',')  + list(string.ascii_lowercase))
+            for line in f:
+                yield [w for w in re.findall('[a-z]{2,}', line.lower()) if w not in stopwords]
+
+        words = next(non_stop_words())
+        lock.acquire()
+        for w in words:
+            self.freqs[w] = 1 if w not in self.freqs else self.freqs[w]+1
+        lock.release()
+
+#
+# The controller
+#
+print("Press space bar to fetch words from the file one by one")
+print("Press ESC to switch to automatic mode")
+model = WordsCounter()
+view = FreqObserver(model.freqs)
+with open(sys.argv[1]) as f:
+    while get_input():
+        try:
+            model.count()
+        except StopIteration:
+            # Let's wait for the view thread to die gracefully
+            view.stop()
+            sleep(1)
+            break
+
+