35 lines
784 B
Go
35 lines
784 B
Go
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package godebug parses the GODEBUG environment variable.
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package godebug
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import "os"
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// Get returns the value for the provided GODEBUG key.
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func Get(key string) string {
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return get(os.Getenv("GODEBUG"), key)
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}
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// get returns the value part of key=value in s (a GODEBUG value).
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func get(s, key string) string {
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for i := 0; i < len(s)-len(key)-1; i++ {
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if i > 0 && s[i-1] != ',' {
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continue
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}
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afterKey := s[i+len(key):]
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if afterKey[0] != '=' || s[i:i+len(key)] != key {
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continue
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}
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val := afterKey[1:]
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for i, b := range val {
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if b == ',' {
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return val[:i]
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}
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}
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return val
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}
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return ""
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}
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