June 2018 Update

Task/Yahoo--search-interface/Kotlin/yahoo--search-interface.kotlin

@@ -0,0 +1,45 @@
+// version 1.2.0
+
+import java.net.URL
+
+val rx = Regex("""<div class=\"yst result\">.+?<a href=\"(.*?)\" class=\"\">(.*?)</a>.+?class="abstract ellipsis">(.*?)</p>""")
+
+class YahooResult(var title: String, var link: String, var text: String) {
+
+    override fun toString() = "\nTitle: $title\nLink : $link\nText : $text"
+}
+
+class YahooSearch(val query: String, val page: Int = 0) {
+
+    private val content: String
+
+    init {
+        val yahoo = "http://search.yahoo.com/search?"
+        val url = URL("${yahoo}p=$query&b=${page * 10 + 1}")
+        content = url.readText()
+    }
+
+    val results: MutableList<YahooResult>
+        get() {
+            val list = mutableListOf<YahooResult>()
+            for (mr in rx.findAll(content)) {
+               val title = mr.groups[2]!!.value.replace("<b>", "").replace("</b>", "")
+               val link  = mr.groups[1]!!.value
+               val text  = mr.groups[3]!!.value.replace("<b>", "").replace("</b>", "")
+               list.add (YahooResult(title, link, text))
+            }
+            return list
+        }
+
+    fun nextPage() = YahooSearch(query, page + 1)
+
+    fun getPage(newPage: Int) = YahooSearch(query, newPage)
+}
+
+fun main(args: Array<String>) {
+    for (page in 0..1) {
+        val x = YahooSearch("rosettacode", page)
+        println("\nPAGE ${page + 1} =>")
+        for (result in x.results.take(3)) println(result)
+    }
+}