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// Copyright 2009 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package strconv

// ParseBool returns the boolean value represented by the string.

// It accepts 1, t, T, TRUE, true, True, 0, f, F, FALSE, false, False.

// Any other value returns an error.

func ParseBool(str string) (value bool, err error) {

        switch str {

        case "1", "t", "T", "true", "TRUE", "True":

                return true, nil

        case "0", "f", "F", "false", "FALSE", "False":

                return false, nil

        }

        return false, syntaxError("ParseBool", str)

}

// FormatBool returns "true" or "false" according to the value of b

func FormatBool(b bool) string {

        if b {

                return "true"

        }

        return "false"

}

// AppendBool appends "true" or "false", according to the value of b,

// to dst and returns the extended buffer.

func AppendBool(dst []byte, b bool) []byte {

        if b {

                return append(dst, "true"...)

        }

        return append(dst, "false"...)

}