// Looks ahead to see if the next character completes the entry. Does not read
// any characters from the reader.
func entryCompleted(r *strings.Reader) bool {
if r.Len() > 0 {
b, _ := r.ReadByte()
r.UnreadByte()
return b == lineSeparator || b == entrySeparator
}
return true
}
// Attempts to consume the wanted character from the reader. Returns true if
// character was read successfully, false otherwise. If the character could
// not be read, then no characters are consumed from the reader.
func consume(r *strings.Reader, wanted byte) bool {
if r.Len() > 0 {
b, _ := r.ReadByte()
if b == wanted {
return true
}
r.UnreadByte()
}
return false
}