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Revision as of 17:00, 10 August 2014

Build and show a web page displaying the separated house or streetnubers in a formatted and colored table.

Task

Write the code which automatically opens a web page in a browser showing the addresses.
No static data must be shown, only processed data.

Scala

Library: Scala

===None of its uses other than Standard Library===<lang scala>import java.awt.Desktop import java.io.{IOException, PrintWriter} import java.net.{URI, ServerSocket} import scala.xml.Elem

class WebServer(port: Int, soleDocument: Elem) extends Thread {

 this.setName(s"Server at $port")

 override def run() {
   val listener = try {
     new ServerSocket(port)
   } catch {
     case e: java.net.BindException => throw new IllegalStateException(s"Port $port already taken!")
   }
   println(s"Listening on port ${listener.getLocalPort}")

   while (!Thread.interrupted()) {
     try {
       //print(".")
       val socket = listener.accept
       new PrintWriter(socket.getOutputStream, true).println(soleDocument)
       socket.close()
     } catch {
       case ioe: IOException => println(ioe)
     }
   }
 }

}

// class WebServer

object HtmlServer extends App {

 val PORT = 64507

 def HtmlBuilder: Elem = {
   def adressen: Iterator[String] =
     """Plataanstraat 5
       |Straat 12
       |Straat 12 II
       |Straat 1940 II
       |Dr. J. Straat   40
       |Dr. J. Straat 12 a
       |Dr. J. Straat 12-14
       |Laan 1940 – 1945 37
       |Plein 1940 2
       |1213-laan 11
       |16 april 1944 Pad 1
       |1e Kruisweg 36
       |Laan 1940-’45 66
       |Laan ’40-’45
       |Langeloërduinen 3 46
       |Marienwaerdt 2e Dreef 2
       |Provincialeweg N205 1
       |Rivium 2e Straat 59.
       |Nieuwe gracht 20rd
       |Nieuwe gracht 20rd 2
       |Nieuwe gracht 20zw /2
       |Nieuwe gracht 20zw/3
       |Nieuwe gracht 20 zw/4
       |Bahnhofstr. 4
       |Wertstr. 10
       |Lindenhof 1
       |Nordesch 20
       |Weilstr. 6
       |Harthauer Weg 2
       |Mainaustr. 49
       |August-Horch-Str. 3
       |Marktplatz 31
       |Schmidener Weg 3
       |Karl-Weysser-Str. 6""".stripMargin.lines

   def getSplittedAddresses(addresses: Iterator[String]) = {
     val extractor = new scala.util.matching.Regex( """(\s\d+[-/]\d+)|(\s(?!1940|1945)\d+[a-zI. /]*\d*)$|\d+\['][40|45]$""")

     def splitsAdres(input: String): (String, String) =
       (extractor.split(input).mkString, extractor.findFirstIn(input).getOrElse(""))

     addresses.map(org => {
       val temp = splitsAdres(org)
       List(org, temp._1, temp._2)
     })
   }

   def generateTable: Elem = {

     def coloring(rownum: Any): String = {
       rownum match {
         case Nil => "#9bbb59"
         case n: Int => if (n % 2 == 0) "#ebf1de" else "#d8e4bc"
       }
     }

{(List(List("Given Address", "Street", "House Number")) ++ getSplittedAddresses(adressen)). zipWithIndex.map { case (row, rownum) => (if (rownum == 0) Nil else rownum) +: row}.map(row => {row.map(cell => if (row.head == Nil) else )} )}

{cell}	{cell}

   } // def generateTable

   <html>
     <head>
       <title>Rosetta.org Task solution</title>
     </head>
     <body lang="en-US" bgcolor="#e6e6ff" dir="LTR">

Split the house number from the street name

{generateTable}

     </body>
   </html>
 } // def content

 // Main //
 val thread = new WebServer(PORT, HtmlBuilder)
 thread.start()
 val uri = URI.create(s"http://localhost:$PORT/")
 if (Desktop.isDesktopSupported && Desktop.getDesktop.isSupported(Desktop.Action.BROWSE))
   Desktop.getDesktop.browse(uri)
 else println(s"Automatic start of Web browser not possible.\nWeb browser must be started manually, use $uri.")

 if (!thread.isAlive) sys.exit(-1)
 println("Web server started.")
 do print("Do you want to shutdown this server? <Y(es)/N>: ") while (!readBoolean)
 sys.exit()

}</lang>

Output:

Split the house number from the street name

	Given Address	Street	House Number
1	Plataanstraat 5	Plataanstraat	5
2	Straat 12	Straat	12
3	Straat 12 II	Straat	12 II
4	Straat 1940 II	Straat 1940 II
5	Dr. J. Straat40	Dr. J. Straat	40
6	Dr. J. Straat 12 a	Dr. J. Straat	12 a
7	Dr. J. Straat 12-14	Dr. J. Straat	12-14
8	Laan 1940 – 1945 37	Laan 1940 – 1945	37
9	Plein 1940 2	Plein 1940	2
10	1213-laan 11	1213-laan	11
11	16 april 1944 Pad 1	16 april 1944 Pad	1
12	1e Kruisweg 36	1e Kruisweg	36
13	Laan 1940-’45 66	Laan 1940-’45	66
14	Laan ’40-’45	Laan ’40-’45
15	Langeloërduinen 3 46	Langeloërduinen	3 46
16	Marienwaerdt 2e Dreef 2	Marienwaerdt 2e Dreef	2
17	Provincialeweg N205 1	Provincialeweg N205	1
18	Rivium 2e Straat 59.	Rivium 2e Straat	59.
19	Nieuwe gracht 20rd	Nieuwe gracht	20rd
20	Nieuwe gracht 20rd 2	Nieuwe gracht	20rd 2
21	Nieuwe gracht 20zw /2	Nieuwe gracht	20zw /2
22	Nieuwe gracht 20zw/3	Nieuwe gracht	20zw/3
23	Nieuwe gracht 20 zw/4	Nieuwe gracht	20 zw/4
24	Bahnhofstr. 4	Bahnhofstr.	4
25	Wertstr. 10	Wertstr.	10
26	Lindenhof 1	Lindenhof	1
27	Nordesch 20	Nordesch	20
28	Weilstr. 6	Weilstr.	6
29	Harthauer Weg 2	Harthauer Weg	2
30	Mainaustr. 49	Mainaustr.	49
31	August-Horch-Str. 3	August-Horch-Str.	3
32	Marktplatz 31	Marktplatz	31
33	Schmidener Weg 3	Schmidener Weg	3
34	Karl-Weysser-Str. 6	Karl-Weysser-Str.	6