libgo/go/strconv/atob.go

   1 // Copyright 2009 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package strconv
   6
   7 // ParseBool returns the boolean value represented by the string.
   8 // It accepts 1, t, T, TRUE, true, True, 0, f, F, FALSE, false, False.
   9 // Any other value returns an error.
  10 func ParseBool(str string) (bool, error) {
  11         switch str {
  12         case "1", "t", "T", "true", "TRUE", "True":
  13                 return true, nil
  14         case "0", "f", "F", "false", "FALSE", "False":
  15                 return false, nil
  16         }
  17         return false, syntaxError("ParseBool", str)
  18 }
  19
  20 // FormatBool returns "true" or "false" according to the value of b.
  21 func FormatBool(b bool) string {
  22         if b {
  23                 return "true"
  24         }
  25         return "false"
  26 }
  27
  28 // AppendBool appends "true" or "false", according to the value of b,
  29 // to dst and returns the extended buffer.
  30 func AppendBool(dst []byte, b bool) []byte {
  31         if b {
  32                 return append(dst, "true"...)
  33         }
  34         return append(dst, "false"...)
  35 }