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src/runtime: add another set of invalid unicode runes to encodeUTF8()

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This commit is contained in:
Damian Gryski
2021-10-15 10:17:34 -07:00
committed by Ayke
parent a413d5dfe9
commit 18aaed63b9
1 changed files with 3 additions and 0 deletions
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src/runtime/string.go
+3
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@@ -160,6 +160,9 @@ func encodeUTF8(x rune) ([4]byte, uintptr) {
b1 := 0xc0 | byte(x>>6) b1 := 0xc0 | byte(x>>6)
b2 := 0x80 | byte(x&0x3f) b2 := 0x80 | byte(x&0x3f)
return [4]byte{b1, b2, 0, 0}, 2 return [4]byte{b1, b2, 0, 0}, 2
case 0xd800 <= x && x <= 0xdfff:
// utf-16 surrogates are replaced with "invalid code point"
return [4]byte{0xef, 0xbf, 0xbd, 0}, 3
case x <= 0xffff: case x <= 0xffff:
b1 := 0xe0 | byte(x>>12) b1 := 0xe0 | byte(x>>12)
b2 := 0x80 | byte((x>>6)&0x3f) b2 := 0x80 | byte((x>>6)&0x3f)