/usr/share/go-1.7/src/unicode/digit.go is in golang-1.7-src 1.7.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | // Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unicode
// IsDigit reports whether the rune is a decimal digit.
func IsDigit(r rune) bool {
if r <= MaxLatin1 {
return '0' <= r && r <= '9'
}
return isExcludingLatin(Digit, r)
}
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