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 int32Value int32 13 14func (i *int32Value) Set(value string, opt Option) error { 15 v, err := strconv.ParseInt(value, 0, 32) 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 = int32Value(v) 28 return nil 29} 30 31func (i *int32Value) String() string { 32 return strconv.FormatInt(int64(*i), 10) 33} 34 35// Int32 creates an option that parses its value as an int32. 36func Int32(name rune, value int32, helpvalue ...string) *int32 { 37 return CommandLine.Int32(name, value, helpvalue...) 38} 39 40func (s *Set) Int32(name rune, value int32, helpvalue ...string) *int32 { 41 return s.Int32Long("", name, value, helpvalue...) 42} 43 44func Int32Long(name string, short rune, value int32, helpvalue ...string) *int32 { 45 return CommandLine.Int32Long(name, short, value, helpvalue...) 46} 47 48func (s *Set) Int32Long(name string, short rune, value int32, helpvalue ...string) *int32 { 49 s.Int32VarLong(&value, name, short, helpvalue...) 50 return &value 51} 52 53func Int32Var(p *int32, name rune, helpvalue ...string) Option { 54 return CommandLine.Int32Var(p, name, helpvalue...) 55} 56 57func (s *Set) Int32Var(p *int32, name rune, helpvalue ...string) Option { 58 return s.Int32VarLong(p, "", name, helpvalue...) 59} 60 61func Int32VarLong(p *int32, name string, short rune, helpvalue ...string) Option { 62 return CommandLine.Int32VarLong(p, name, short, helpvalue...) 63} 64 65func (s *Set) Int32VarLong(p *int32, name string, short rune, helpvalue ...string) Option { 66 return s.VarLong((*int32Value)(p), name, short, helpvalue...) 67} 68