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authorIan Lance Taylor <iant@golang.org>2019-09-06 18:12:46 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2019-09-06 18:12:46 +0000
commitaa8901e9bb0399d2c16f988ba2fe46eb0c0c5d13 (patch)
tree7e63b06d1eec92beec6997c9d3ab47a5d6a835be /libgo/go/regexp/syntax/regexp.go
parent920ea3b8ba3164b61ac9490dfdfceb6936eda6dd (diff)
libgo: update to Go 1.13beta1 release
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/193497 From-SVN: r275473
Diffstat (limited to 'libgo/go/regexp/syntax/regexp.go')
-rw-r--r--libgo/go/regexp/syntax/regexp.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/libgo/go/regexp/syntax/regexp.go b/libgo/go/regexp/syntax/regexp.go
index ae5fa053f98..3a4d2d201cd 100644
--- a/libgo/go/regexp/syntax/regexp.go
+++ b/libgo/go/regexp/syntax/regexp.go
@@ -139,7 +139,7 @@ func writeRegexp(b *strings.Builder, re *Regexp) {
b.WriteRune('[')
if len(re.Rune) == 0 {
b.WriteString(`^\x00-\x{10FFFF}`)
- } else if re.Rune[0] == 0 && re.Rune[len(re.Rune)-1] == unicode.MaxRune {
+ } else if re.Rune[0] == 0 && re.Rune[len(re.Rune)-1] == unicode.MaxRune && len(re.Rune) > 2 {
// Contains 0 and MaxRune. Probably a negated class.
// Print the gaps.
b.WriteRune('^')