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stario/io.go

152 lines
2.5 KiB
Go

package stario
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
)
type InputMsg struct {
msg string
err error
}
func MessageBox(hint string, defaultVal string) InputMsg {
if hint != "" {
fmt.Print(hint)
}
inputReader := bufio.NewReader(os.Stdin)
str, err := inputReader.ReadString('\n')
if err != nil {
return InputMsg{"", err}
}
return InputMsg{strings.TrimSpace(str), nil}
}
func (im InputMsg) String() (string, error) {
if im.err != nil {
return "", im.err
}
return im.msg, nil
}
func (im InputMsg) MustString() string {
res, _ := im.String()
return res
}
func (im InputMsg) Int() (int, error) {
if im.err != nil {
return 0, im.err
}
return strconv.Atoi(im.msg)
}
func (im InputMsg) MustInt() int {
res, _ := im.Int()
return res
}
func (im InputMsg) Int64() (int64, error) {
if im.err != nil {
return 0, im.err
}
return strconv.ParseInt(im.msg, 10, 64)
}
func (im InputMsg) MustInt64() int64 {
res, _ := im.Int64()
return res
}
func (im InputMsg) Uint64() (uint64, error) {
if im.err != nil {
return 0, im.err
}
return strconv.ParseUint(im.msg, 10, 64)
}
func (im InputMsg) MustUint64() uint64 {
res, _ := im.Uint64()
return res
}
func (im InputMsg) Bool() (bool, error) {
if im.err != nil {
return false, im.err
}
return strconv.ParseBool(im.msg)
}
func (im InputMsg) MustBool() bool {
res, _ := im.Bool()
return res
}
func (im InputMsg) Float64() (float64, error) {
if im.err != nil {
return 0, im.err
}
return strconv.ParseFloat(im.msg, 64)
}
func (im InputMsg) MustFloat64() float64 {
res, _ := im.Float64()
return res
}
func (im InputMsg) Float32() (float32, error) {
if im.err != nil {
return 0, im.err
}
res, err := strconv.ParseFloat(im.msg, 32)
return float32(res), err
}
func (im InputMsg) MustFloat32() float32 {
res, _ := im.Float32()
return res
}
func YesNo(hint string, defaults bool) bool {
res := strings.ToUpper(MessageBox(hint, "").MustString())
if res == "" {
return defaults
}
res = res[0:1]
if res == "Y" {
return true
} else if res == "N" {
return false
} else {
return defaults
}
}
func StopUntil(hint string, trigger string) error {
pressLen := len(trigger)
if trigger == "" {
pressLen = 1
} else {
pressLen = len(trigger)
}
ioBuf := make([]byte, pressLen)
for {
if hint != "" {
fmt.Print(hint)
}
inputReader := bufio.NewReader(os.Stdin)
_, err := inputReader.Read(ioBuf)
if err != nil {
return err
}
if string(ioBuf) == trigger || trigger == "" {
break
}
fmt.Print("\n")
}
return nil
}