talking_watch_sample_en.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

try:
    import roslib; roslib.load_manifest('rospeex_if')
except:
    pass

import rospy
import datetime
import re

# Import other libraries
from rospeex_if import ROSpeexInterface

class Demo(object):
    """ Demo class """
    def __init__(self):
        """ Initializer """
        self._interface = ROSpeexInterface()

    def sr_response(self, message):
        """ speech recognition response callback
        @param message: recognize result (e.g. what time is it ?)
        @type  message: str
        """
        time = re.compile('(?P<time>what time)').search(message.lower())

        print 'you said : %s' %message
        if time is not None:
            d = datetime.datetime.today()
            text = 'It\'s %d:%d.' % (d.hour, d.minute)

            # say current time
            print 'rospeex reply : %s' %text
            self._interface.say(text, 'en', 'nict')


    def run(self):
        """ run ros node """
        # initialize ros node
        rospy.init_node('ss_sr_demo')

        # initialize rospeex
        self._interface.init()
        self._interface.register_sr_response(self.sr_response)
        self._interface.set_spi_config(language='en',engine='nict')
        rospy.spin()

if __name__ == '__main__':
    try:
        node = Demo()
        node.run()
    except rospy.ROSInterruptException:
        pass