Switch to v1.0.2 of github.com/chai2010/gettext-go

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

vendor/github.com/chai2010/gettext-go/po/line_reader.go

@@ -0,0 +1,62 @@
+// Copyright 2013 ChaiShushan <chaishushan{AT}gmail.com>. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package po
+
+import (
+	"io"
+	"strings"
+)
+
+type lineReader struct {
+	lines []string
+	pos   int
+}
+
+func newLineReader(data string) *lineReader {
+	data = strings.Replace(data, "\r", "", -1)
+	lines := strings.Split(data, "\n")
+	return &lineReader{lines: lines}
+}
+
+func (r *lineReader) skipBlankLine() error {
+	for ; r.pos < len(r.lines); r.pos++ {
+		if strings.TrimSpace(r.lines[r.pos]) != "" {
+			break
+		}
+	}
+	if r.pos >= len(r.lines) {
+		return io.EOF
+	}
+	return nil
+}
+
+func (r *lineReader) currentPos() int {
+	return r.pos
+}
+
+func (r *lineReader) currentLine() (s string, pos int, err error) {
+	if r.pos >= len(r.lines) {
+		err = io.EOF
+		return
+	}
+	s, pos = r.lines[r.pos], r.pos
+	return
+}
+
+func (r *lineReader) readLine() (s string, pos int, err error) {
+	if r.pos >= len(r.lines) {
+		err = io.EOF
+		return
+	}
+	s, pos = r.lines[r.pos], r.pos
+	r.pos++
+	return
+}
+
+func (r *lineReader) unreadLine() {
+	if r.pos >= 0 {
+		r.pos--
+	}
+}