1// Copyright 2013 Google Inc. 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 5package getopt 6 7import ( 8 "fmt" 9 "strconv" 10) 11 12type uintValue uint 13 14func (i *uintValue) Set(value string, opt Option) error { 15 v, err := strconv.ParseUint(value, 0, strconv.IntSize) 16 if err != nil { 17 if e, ok := err.(*strconv.NumError); ok { 18 switch e.Err { 19 case strconv.ErrRange: 20 err = fmt.Errorf("value out of range: %s", value) 21 case strconv.ErrSyntax: 22 err = fmt.Errorf("not a valid number: %s", value) 23 } 24 } 25 return err 26 } 27 *i = uintValue(v) 28 return nil 29} 30 31func (i *uintValue) String() string { 32 return strconv.FormatUint(uint64(*i), 10) 33} 34 35// Uint creates an option that parses its value as an unsigned integer. 36func Uint(name rune, value uint, helpvalue ...string) *uint { 37 return CommandLine.Uint(name, value, helpvalue...) 38} 39 40func (s *Set) Uint(name rune, value uint, helpvalue ...string) *uint { 41 return s.UintLong("", name, value, helpvalue...) 42} 43 44func UintLong(name string, short rune, value uint, helpvalue ...string) *uint { 45 return CommandLine.UintLong(name, short, value, helpvalue...) 46} 47 48func (s *Set) UintLong(name string, short rune, value uint, helpvalue ...string) *uint { 49 s.UintVarLong(&value, name, short, helpvalue...) 50 return &value 51} 52 53func UintVar(p *uint, name rune, helpvalue ...string) Option { 54 return CommandLine.UintVar(p, name, helpvalue...) 55} 56 57func (s *Set) UintVar(p *uint, name rune, helpvalue ...string) Option { 58 return s.UintVarLong(p, "", name, helpvalue...) 59} 60 61func UintVarLong(p *uint, name string, short rune, helpvalue ...string) Option { 62 return CommandLine.UintVarLong(p, name, short, helpvalue...) 63} 64 65func (s *Set) UintVarLong(p *uint, name string, short rune, helpvalue ...string) Option { 66 return s.VarLong((*uintValue)(p), name, short, helpvalue...) 67} 68