interfaces: refactor

interfaces/05-log-parser/functional/main.go

@@ -0,0 +1,44 @@
+// 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"
+)
+
+func main() {
+	p := pipeline{
+		read:   textReader(os.Stdin),
+		write:  textWriter(os.Stdout),
+		filter: notUsing(domainExtFilter("io", "com")),
+		group:  domainGrouper,
+	}
+
+	// var p pipeline
+	// p.
+	// 	filterBy(notUsing(domainExtFilter("io", "com"))).
+	// 	groupBy(domainGrouper)
+
+	if err := p.start(); err != nil {
+		fmt.Println("> Err:", err)
+	}
+}
+
+// []outputter{textFile("results.txt"), chartFile("graph.png")}
+
+// func outputs(w io.Writer) outputFn {
+// 	tw := textWriter(w)
+// 	cw := chartWriter(w)
+
+// 	return func(rs []result) error {
+// 		err := tw(rs)
+// 		err = cw(rs)
+// 		return err
+// 	}
+// }