move: log parsers

logparser/oop/textlog.go

@@ -0,0 +1,39 @@
+// For more tutorials: https://bp.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"bufio"
+	"io"
+)
+
+type textLog struct {
+	reader io.Reader
+}
+
+func newTextLog(r io.Reader) *textLog {
+	return &textLog{reader: r}
+}
+
+func (p *textLog) each(yield recordFn) error {
+	defer readClose(p.reader)
+
+	in := bufio.NewScanner(p.reader)
+
+	for in.Scan() {
+		r := new(record)
+
+		if err := r.UnmarshalText(in.Bytes()); err != nil {
+			return err
+		}
+
+		yield(*r)
+	}
+
+	return in.Err()
+}