+/*
+recfile -- GNU recutils'es recfiles parser on pure Go
+Copyright (C) 2020 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// GNU recutils'es recfiles parser on pure Go
+package recfile
+
+import (
+ "io"
+ "strings"
+)
+
+type Writer struct {
+ w io.StringWriter
+}
+
+func NewWriter(w io.StringWriter) *Writer {
+ return &Writer{w}
+}
+
+func (w *Writer) RecordStart(fs ...Field) (written int, err error) {
+ return w.w.WriteString("\n")
+}
+
+func (w *Writer) WriteFields(fs ...Field) (written int, err error) {
+ var n int
+ for _, f := range fs {
+ n, err = w.w.WriteString(f.Name + ": " + strings.TrimLeft(f.Value, " ") + "\n")
+ written += n
+ if err != nil {
+ return
+ }
+ }
+ return
+}
+
+func (w *Writer) WriteFieldMultiline(name string, lines []string) (written int, err error) {
+ var n int
+ n, err = w.w.WriteString(name + ": " + strings.TrimLeft(lines[0], " ") + "\n")
+ written += n
+ if err != nil {
+ return
+ }
+ for _, l := range lines[1:] {
+ n, err = w.w.WriteString("+ " + l + "\n")
+ written += n
+ if err != nil {
+ return
+ }
+ }
+ return
+}