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Task/String-matching/Go/string-matching.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+    "fmt"
+    "strings"
+)
+
+func match(first, second string) {
+    fmt.Printf("1. %s starts with %s: %t\n",
+        first, second, strings.HasPrefix(first, second))
+    i := strings.Index(first, second)
+    fmt.Printf("2. %s contains %s: %t,\n", first, second, i >= 0)
+    if i >= 0 {
+        fmt.Printf("2.1. at location %d,\n", i)
+        for start := i+1;; {
+            if i = strings.Index(first[start:], second); i < 0 {
+                break
+            }
+            fmt.Printf("2.2. at location %d,\n", start+i)
+            start += i+1
+        }
+        fmt.Println("2.2. and that's all")
+    }
+    fmt.Printf("3. %s ends with %s: %t\n",
+        first, second, strings.HasSuffix(first, second))
+}
+
+func main() {
+    match("abracadabra", "abr")
+}