Enspace trailing backslash for convenience

[gorecfile.git] / w.go

diff --git a/w.go b/w.go
index 7d82d48f89e1f5f1ed8ece831d7765c6f3d3cff5..2bd06df5a06fc5bde056b21f9fad48441287242a 100644 (file)
--- a/w.go
+++ b/w.go
@@ -1,6 +1,6 @@
 /*
 recfile -- GNU recutils'es recfiles parser on pure Go
-Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2020-2023 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
@@ -15,7 +15,6 @@ 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 (
@@ -27,18 +26,23 @@ type Writer struct {
        w io.StringWriter
 }
 
-func NewWriter(w io.StringWriter) *Writer {
-       return &Writer{w}
-}
+func NewWriter(w io.StringWriter) *Writer { return &Writer{w} }
+
+func (w *Writer) RecordStart() (written int, err error) { return w.w.WriteString("\n") }
 
-func (w *Writer) RecordStart() (written int, err error) {
-       return w.w.WriteString("\n")
+func backslashSpace(s string) string {
+       if strings.HasSuffix(s, "\\") {
+               return s + " "
+       }
+       return s
 }
 
 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")
+               n, err = w.w.WriteString(
+                       f.Name + ": " + backslashSpace(strings.TrimLeft(f.Value, " ")) + "\n",
+               )
                written += n
                if err != nil {
                        return
@@ -49,13 +53,15 @@ func (w *Writer) WriteFields(fs ...Field) (written int, err error) {
 
 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")
+       n, err = w.w.WriteString(
+               name + ": " + backslashSpace(strings.TrimLeft(lines[0], " ")) + "\n",
+       )
        written += n
        if err != nil {
                return
        }
        for _, l := range lines[1:] {
-               n, err = w.w.WriteString("+ " + l + "\n")
+               n, err = w.w.WriteString("+ " + backslashSpace(l) + "\n")
                written += n
                if err != nil {
                        return