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.String), characterNumber) return readthisrune(circumstance, runescanner, cr.Rune) }