encoding/line: phantom line from ReadLine #1509
Description
ReadLine() returns empty line despite a preceding Read() returning os.EOF.
package main
import (
"encoding/line"
"strings"
"io/ioutil"
"fmt"
)
func main() {
lr := line.NewReader(strings.NewReader("foo"), 10)
_, err := ioutil.ReadAll(lr)
if err != nil {
fmt.Println(err)
return
}
_, err = lr.Read(make([]byte, 10))
fmt.Println("Read error:", err)
_, _, err = lr.ReadLine()
fmt.Println("ReadLine error:", err)
_, _, err = lr.ReadLine()
fmt.Println("ReadLine error:", err)
}
What is the expected output?
Read error: EOF
ReadLine error: EOF
ReadLine error: EOF
What do you see instead?
Read error: EOF
ReadLine error: <nil>
ReadLine error: EOF