digit.mx raw

   1  // Copyright 2009 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 unicode
   6  
   7  // IsDigit reports whether the rune is a decimal digit.
   8  func IsDigit(r rune) bool {
   9  	if r <= MaxLatin1 {
  10  		return '0' <= r && r <= '9'
  11  	}
  12  	return isExcludingLatin(Digit, r)
  13  }
  14