add: loop for statement exercises

13-loops/exercises/09-word-finder-exercises/02-path-searcher/solution/main.go

@@ -0,0 +1,48 @@
+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+const notFound = -1
+
+func main() {
+	// Get and split the PATH environment variable
+
+	// SplitList function automatically finds the
+	// separator for the path env variable
+	words := filepath.SplitList(os.Getenv("PATH"))
+
+	// Alternative way, but above one is better:
+	// words := strings.Split(
+	// 	os.Getenv("PATH"),
+	// 	string(os.PathListSeparator))
+
+	query := os.Args[1:]
+
+	for _, q := range query {
+	search:
+		for i, w := range words {
+			q, w = strings.ToLower(q), strings.ToLower(w)
+
+			switch q {
+			case "and", "or", "the":
+				break search
+			}
+
+			if strings.Index(w, q) != notFound {
+				fmt.Printf("#%-2d: %q\n", i+1, w)
+			}
+		}
+	}
+}