Smart Word Blocks

wordblocks.py

# by Cypress Frankenfeld and Sebastian Dziallas

import serial
import signal
import sys
import subprocess
import os
import re
import qrcode

def signal_handler(signal, frame):
    print('closing')
    ser.close()
    sys.exit(0)

def grab_words():
    signal.signal(signal.SIGINT, signal_handler)
    ser = serial.Serial('/dev/ttyACM0', 9600)
    d = qrcode.Decoder()
    cmd = 'streamer -c /dev/video1 -f jpeg -o $HOME/out.jpeg -s 640x480'
    decoded = 0
    words = []
    while True:
        x = ser.readline()
        if decoded == 0 and int(x) < 55:
            print int(x)
            subprocess.call(cmd, shell=True, stdout=open(os.devnull, 'w'), stderr=open(os.devnull, 'w'))
            subprocess.call('convert $HOME/out.jpeg $HOME/out.png', shell=True, stdout=open(os.devnull, 'w'), stderr=open(os.devnull, 'w'))
            if d.decode('out.png'):
                # make sure that the list this generates is actually valid
                words.append(d.result)
                decoded = 1
                return words
        if decoded == 1 and int(x) > 60:
            decoded = 0

def splitParagraphIntoSentences(paragraph):
    ''' break a paragraph into sentences
        and return a list '''
    # regular expressions are easiest (and fastest)
    sentenceEnders = re.compile('[.!?]')
    sentenceList = sentenceEnders.split(paragraph)
    return sentenceList

def parse_book(filename):
    f = open(filename, 'r')
    read = f.read()
    text = read.translate(None, '\n\r')
    sentences = splitParagraphIntoSentences(text)
    return sentences

def parse_words(sentences, words):
    match = []
    length = len(words)
    compare = sentences
    for h in range(0,length):
        word = words[length]
        if h > 0:
            compare = match
        for i in compare:
            pattern = "(?P<sentence>.*?%s.*?)" % word
            hit = re.search(pattern, i)
            if hit != None:
                sentence = hit.group("sentence")
                match.append(sentence)
            else:
                return match
    return match

sentences = parse_book('sherlock.txt')
words = grab_words()
match = parse_words(sentences, words)
index = sentences.index(match[0])

print sentences[index - 1]
print sentences[index]
print sentences[index + 1]