Merge pull request #2 from MichaelMure/multiline

add support for multi-line values with \

Author: pjbgf

read.go

@@ -12,7 +12,7 @@ import (
 	"github.com/go-git/gcfg/token"
 )
 
-var unescape = map[rune]rune{'\\': '\\', '"': '"', 'n': '\n', 't': '\t', 'b': '\b'}
+var unescape = map[rune]rune{'\\': '\\', '"': '"', 'n': '\n', 't': '\t', 'b': '\b', '\n': '\n'}
 
 // no error: invalid literals should be caught by scanner
 func unquote(s string) string {

read_test.go

@@ -400,6 +400,10 @@ func TestReadWithCallback(t *testing.T) {
 	key5=
 	[sect1 "subsect2"]
 	[sect2]
+	[sect3]
+    foo = "!f(){ \
+	echo hello; \
+	};f"
 	`
 	expected := [][]string{
 		[]string{"sect1", "", "", "", "true"},
@@ -411,6 +415,8 @@ func TestReadWithCallback(t *testing.T) {
 		[]string{"sect1", "subsect1", "key5", "", "false"},
 		[]string{"sect1", "subsect2", "", "", "true"},
 		[]string{"sect2", "", "", "", "true"},
+		[]string{"sect3", "", "", "", "true"},
+		[]string{"sect3", "", "foo", "!f(){ \n\techo hello; \n\t};f", "false"},
 	}
 	err := ReadWithCallback(bytes.NewReader([]byte(text)), cb)
 	if err != nil {

scanner/scanner.go

@@ -155,12 +155,13 @@ func (s *Scanner) scanIdentifier() string {
 	return string(s.src[offs:s.offset])
 }
 
+// val indicate if we are scanning a value (vs a header)
 func (s *Scanner) scanEscape(val bool) {
 	offs := s.offset
 	ch := s.ch
 	s.next() // always make progress
 	switch ch {
-	case '\\', '"':
+	case '\\', '"', '\n':
 		// ok
 	case 'n', 't', 'b':
 		if val {