35 lines
849 B
Go
35 lines
849 B
Go
// Copyright 2021 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package charset
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import (
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"golang.org/x/text/encoding"
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)
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var UTF8Encoding = &Encoding{
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enc: encoding.Nop,
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name: CharsetUTF8MB4,
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charLength: func(bs []byte) int {
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if len(bs) == 0 || bs[0] < 0x80 {
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return 1
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} else if bs[0] < 0xe0 {
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return 2
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} else if bs[0] < 0xf0 {
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return 3
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}
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return 4
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},
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specialCase: nil,
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}
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