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      1 // Copyright 2013 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 package bufio
      6 
      7 // Exported for testing only.
      8 import (
      9 	"unicode/utf8"
     10 )
     11 
     12 var IsSpace = isSpace
     13 
     14 func (s *Scanner) MaxTokenSize(n int) {
     15 	if n < utf8.UTFMax || n > 1e9 {
     16 		panic("bad max token size")
     17 	}
     18 	if n < len(s.buf) {
     19 		s.buf = make([]byte, n)
     20 	}
     21 	s.maxTokenSize = n
     22 }
     23 
     24 // ErrOrEOF is like Err, but returns EOF. Used to test a corner case.
     25 func (s *Scanner) ErrOrEOF() error {
     26 	return s.err
     27 }
     28