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28216bde46
* Super expansion * Explain which features are in 1.11 vs 1.12 * Move imports Signed-off-by: jolheiser <john.olheiser@gmail.com>
25 lines
539 B
Go
25 lines
539 B
Go
// Copyright 2015 Huan Du. All rights reserved.
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// Licensed under the MIT license that can be found in the LICENSE file.
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package xstrings
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import (
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"bytes"
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)
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const bufferMaxInitGrowSize = 2048
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// Lazy initialize a buffer.
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func allocBuffer(orig, cur string) *bytes.Buffer {
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output := &bytes.Buffer{}
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maxSize := len(orig) * 4
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// Avoid to reserve too much memory at once.
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if maxSize > bufferMaxInitGrowSize {
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maxSize = bufferMaxInitGrowSize
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}
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output.Grow(maxSize)
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output.WriteString(orig[:len(orig)-len(cur)])
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return output
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}
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