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https://github.com/hanzoai/tasks.git
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David ReissandGitHub
3f24c833ef
## What changed? Truncate could split strings in the middle of utf-8 codepoints. Also, not all strings in the failure were truncated and depth of failures (at least structure) was not limited. ## Why? Avoid invalid utf-8 in strings. ## How did you test it? unit tests ## Potential risks This could drop more information from Failures than before.
44 lines
1.6 KiB
Go
44 lines
1.6 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package util
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import "unicode/utf8"
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// TruncateUTF8 truncates s to no more than n _bytes_, and returns a valid utf-8 string as long
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// as the input is a valid utf-8 string.
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// Note that truncation pays attention to codepoints only! This may truncate in the middle of a
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// grapheme cluster.
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func TruncateUTF8(s string, n int) string {
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if len(s) <= n {
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return s
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} else if n <= 0 {
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return ""
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}
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for n > 0 && !utf8.RuneStart(s[n]) {
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n--
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}
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return s[:n]
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}
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