Use screen-scraping to get the temperature for a city

Note: This sample script includes a reference to a public website as an example. You may need to replace that URL with a current and verified URL.

' Screen-scraping involves downloading a web page,

' then using a regular expression to retrieve the desired data.

' Requires input string UDA me.CityState, e.g. "Los Angeles,CA"

' and output float UDA me.temperature.

dim request as System.Net.WebRequest;

dim reader as System.IO.StreamReader;

dim regex as System.Text.RegularExpressions.Regex;

dim match as System.Text.RegularExpressions.Match;

request = System.Net.WebRequest.Create

(

"http://www.srh.noaa.gov/data/forecasts/zipcity.php?inputstring=" +

System.Web.HttpUtility.UrlEncode(me.CityState)

);

reader = new System.IO.StreamReader(request.GetResponse().GetResponseStream());

regex = new System.Text.RegularExpressions.Regex("<br><br>(.*)&deg;F<br>");

match = regex.Match(reader.ReadToEnd());

me.temperature = match.Groups(1);