25 lines
689 B
Go
25 lines
689 B
Go
package eol
|
|
|
|
import (
|
|
"io"
|
|
|
|
"sourcecode.social/reiver/go-opt"
|
|
|
|
"sourcecode.social/reiver/go-eol/cr"
|
|
)
|
|
|
|
// ReadCR tries to read the "\r" (i.e., carriage-return) end-of-line sequence.
|
|
//
|
|
// If successful, it returns the number-of-bytes read (to read in end-of-line sequence "\r").
|
|
//
|
|
// If the character read is not a '\r', then ReadCR will try to unread the character.
|
|
//
|
|
// Example usage:
|
|
//
|
|
// size, err := eol.ReadCR(runescanner)
|
|
func ReadCR(runescanner io.RuneScanner) (size int, err error) {
|
|
const characterNumber uint64 = 1
|
|
var circumstance internalCircumstance = specifyCircumstance(opt.Something(CR), characterNumber)
|
|
return readthisrune(circumstance, runescanner, cr.Rune)
|
|
}
|