Author: jtregunna Date: Thu Mar 26 14:12:45 2009 New Revision: 12795 Log: Added a simple TTS weather reporting agent. Primitive at the moment, no searching capabilities, location is fixed to Waterloo, Ontario, Canada. TODO: Create an ASR, and have it search major city centers in North America, maybe the world if I can find an easy way of doing that. Added: freeswitch/trunk/scripts/contrib/jtregunna/weather.js Added: freeswitch/trunk/scripts/contrib/jtregunna/weather.js ============================================================================== --- (empty file) +++ freeswitch/trunk/scripts/contrib/jtregunna/weather.js Thu Mar 26 14:12:45 2009 @@ -0,0 +1,123 @@ +/* + * Weather application + * Copyright (c) 2009, Jeremy Tregunna, All Rights Reserved. + * Redistributable under any terms you like! + * + * Uses the Yahoo! Weather forecasting engine. http://weather.yahoo.com/ + * + * Makes use of mod_flite, should be easy to adapt to any other TTS engine. + */ +var yweather = new Namespace("http://xml.weather.yahoo.com/ns/rss/1.0"); + +var rssFile = "/usr/local/freeswitch/rss/weather.rss"; +var currentConditions = "Unknown"; +var highTemperature = lowTemperature = currentTemperature = "0"; +var doc = null; + +// XXX: Big and nasty, but the values Yahoo! Weather's RSS feed gives out for "text" attributes on yweather:condition +// really don't fit in well with any method of saying things. That is, "You can expect <foo> conditions" works for +// most cases, but falls down or reads weird, when things like "tornado conditions" are inserted into <foo>. If you +// don't mind that awkwardness, you can get rid of the conditions object, and just change the code in sayWeather() +// replacing occurences of @code with @text, of course, first removing the conditions[...] that surround fc.@code. +var conditions = new Object(); +conditions[0] = "a tornado"; +conditions[1] = "tropical storm conditions"; +conditions[2] = "hurricane conditions"; +conditions[3] = "severe thunderstorms"; +conditions[4] = "thunderstorms"; +conditions[5] = "mixture of rain and snow"; +conditions[6] = "mixture of rain and sleet"; +conditions[7] = "mixture of snow and sleet"; +conditions[8] = "freezing drizzle"; +conditions[9] = "some drizzle"; +conditions[10] = "freezing rain"; +conditions[11] = "rain showers"; +conditions[12] = "light rain showers"; +conditions[13] = "snow flurries"; +conditions[14] = "light snow"; +conditions[15] = "blowing snow"; +conditions[16] = "snow"; +conditions[17] = "periods of hail"; +conditions[18] = "sleet"; +conditions[19] = "dusty conditions"; +conditions[20] = "foggy conditions"; +conditions[21] = "hazy conditions"; +conditions[22] = "smokey conditions"; +conditions[23] = "high winds"; +conditions[24] = "windy"; +conditions[25] = "cold conditions"; +conditions[26] = "overcast conditions"; +conditions[27] = "mostly cloudy conditions"; // Night time +conditions[28] = "mostly cloudy conditions"; // Day time +conditions[29] = "partly cloudy conditions"; // Night time +conditions[30] = "partly cloudy conditions"; // Day time +conditions[31] = "clear conditions"; // Night time +conditions[32] = "sunny conditions"; // Day time +conditions[33] = "fair conditions"; // Night time +conditions[34] = "fair conditions"; // Day time +conditions[35] = "periods of mixed rain and hail"; +conditions[36] = "hot conditions"; +conditions[37] = "isolated thunderstorms"; +conditions[38] = "scattered thunderstorms"; +conditions[39] = "scattered thunderstorms"; +conditions[40] = "scattered showers"; +conditions[41] = "heavy snow"; +conditions[42] = "scattered snow flurries"; +conditions[43] = "heavy snow"; +conditions[44] = "partly cloudy conditions"; +conditions[45] = "thundershowers"; +conditions[46] = "snow flurries"; +conditions[47] = "isolated thunderstorms"; +conditions[3200] = "conditions are not available at this time"; + +/********** Say something **********/ +say = function(something) { + session.speak("flite", "rms", something); +} + +/********** Load the XML **********/ +loadXML = function(url) { + fetchURLFile(url, rssFile); + var fd = new FileIO(rssFile, "r"); + fd.read(3072); + // Need to strip out the <?xml ...?> tag otherwise we get a syntax error, silly E4X + doc = new XML(fd.data().replace(/^<\?xml\s+version\s*=\s*(["'])[^\1]+\1[^?]*\?>/, "")); +} + +/********** Say the weather **********/ +sayWeather = function() { + var currentCondition = doc.channel.item.yweather::condition.@text; + var currentTemperature = doc.channel.item.yweather::condition.@temp; + var firstLoop = true; + var forecast = "The current conditions are: "; + forecast += conditions[doc.channel.item.yweather::condition.@code]; + forecast += " and it is " + currentTemperature + " degree" + ((currentTemperature != 1) ? "s" : "") + " out.\n"; + for each(var fc in doc.channel.item.yweather::forecast) { + // XXX: Figure out why day.replace("Sun", "Sunday") et. al., doesn't actually replace the date when used here + // but when using the "js" spidermonkey executable, it does. + var day = fc.@day; + if (day == "Sun") + day = "Sunday"; + else if (day == "Mon") + day = "Monday"; + else if (day == "Tue") + day = "Tuesday"; + else if (day == "Wed") + day = "Wednesday"; + else if (day == "Thu") + day = "Thursday"; + else if (day == "Fri") + day = "Friday"; + else if (day == "Sat") + day = "Saturday"; + forecast += day + "'s forecast calls for " + conditions[fc.@code] + ", with a daytime high of "; + forecast += fc.@high + " degree" + ((fc.@high != 1) ? "s" : "") + " and a low of " + fc.@low + " degree" + ((fc.@low != 1) ? "s" : "") + ".\n"; + } + say(forecast); +} + +if (session.ready()) { + session.answer(); + loadXML("http://weather.yahooapis.com/forecastrss?p=CAXX0531&u=c"); + sayWeather(); +}