diff options
Diffstat (limited to 'libgo/go/regexp/syntax/prog.go')
| -rw-r--r-- | libgo/go/regexp/syntax/prog.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libgo/go/regexp/syntax/prog.go b/libgo/go/regexp/syntax/prog.go index ae7a9a2..8583f55 100644 --- a/libgo/go/regexp/syntax/prog.go +++ b/libgo/go/regexp/syntax/prog.go @@ -8,6 +8,7 @@ import ( "strconv" "strings" "unicode" + "unicode/utf8" ) // Compiled program. @@ -154,7 +155,7 @@ func (p *Prog) Prefix() (prefix string, complete bool) { // Have prefix; gather characters. var buf strings.Builder - for i.op() == InstRune && len(i.Rune) == 1 && Flags(i.Arg)&FoldCase == 0 { + for i.op() == InstRune && len(i.Rune) == 1 && Flags(i.Arg)&FoldCase == 0 && i.Rune[0] != utf8.RuneError { buf.WriteRune(i.Rune[0]) i = p.skipNop(i.Out) } |