14 lines
386 B
Go
14 lines
386 B
Go
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package unicode
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// IsDigit reports whether the rune is a decimal digit.
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func IsDigit(rune int) bool {
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if rune < 0x100 { // quick ASCII (Latin-1, really) check
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return '0' <= rune && rune <= '9'
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}
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return Is(Digit, rune)
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}
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