scan

README

Scan

Functions for reading user input from stdin.

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Table of Contents

• Features
• Installation
• Usage
• License

Features

• Simple single-line input reading
• Returns io.EOF when input is closed (Ctrl+D)
• Type conversion with error handling

Installation

go get github.com/andmitr/pkg/scan

Usage

func String

func String() (string, error)

String reads a single line from stdin and returns it as a string.

Example

fmt.Print("Enter your name: ")
name, err := scan.String()
if errors.Is(err, io.EOF) {
    fmt.Println("Input closed")
    return
}
if err != nil {
    log.Fatal(err)
}
fmt.Printf("Hello, %s!\n", name)

func Int

func Int() (int, error)

Int reads a single line from stdin and returns it as an int.

Example

fmt.Print("Enter your age: ")
age, err := scan.Int()
if err != nil {
    log.Fatal(err)
}
fmt.Printf("You are %d years old\n", age)

func Float

func Float() (float64, error)

Float reads a single line from stdin and returns it as a float64.

Example

fmt.Print("Enter price: ")
price, err := scan.Float()
if err != nil {
    log.Fatal(err)
}
fmt.Printf("Price: %.2f\n", price)

License

MIT Licensed. See LICENSE for details.

Documentation

Index

• func Float() (float64, error)
• func Int() (int, error)
• func String() (string, error)

Functions

func Float

func Float() (float64, error)

Float reads a single line from stdin and returns it as a float64.

Returns io.EOF when input is closed.

func Int

func Int() (int, error)

Int reads a single line from stdin and returns it as an int.

Returns io.EOF when input is closed.

func String

func String() (string, error)

String reads a single line from stdin and returns it as a string.

Returns io.EOF when input is closed.