func go/scanner.isHex

3 uses

	go/scanner (current package)
		scanner.go#L417: func isHex(ch rune) bool     { return '0' <= ch && ch <= '9' || 'a' <= lower(ch) && lower(ch) <= 'f' }
		scanner.go#L439: 		for isHex(s.ch) || s.ch == '_' {
		scanner.go#L574: 		case isDecimal(d) || x1 == 'x' && isHex(d):

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