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validation.go
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/
validation.go
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package main
import (
"fmt"
"gopkg.in/AlecAivazis/survey.v1"
)
// the questions to ask
var validationQs = []*survey.Question{
{
Name: "name",
Prompt: &survey.Input{Message: "What is your name?"},
Validate: survey.Required,
},
{
Name: "valid",
Prompt: &survey.Input{Message: "Enter 'foo':", Default: "not foo"},
Validate: func(val interface{}) error {
// if the input matches the expectation
if str := val.(string); str != "foo" {
return fmt.Errorf("You entered %s, not 'foo'.", str)
}
// nothing was wrong
return nil
},
},
}
func main() {
// the place to hold the answers
answers := struct {
Name string
Valid string
}{}
err := survey.Ask(validationQs, &answers)
if err != nil {
fmt.Println("\n", err.Error())
}
}