12 lines
316 B
Go
12 lines
316 B
Go
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package rfc2234
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// IsHexDigit returns true if value of 'r' matches 'ALPHA' as defined in IETF RFC-2234:
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//
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// HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F"
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//
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// DIGIT = %x30-39
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// ; 0-9
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func IsHexDig(r rune) bool {
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return ('0' <= r && r <= '9') || ('A' <= r && r <= 'F')
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}
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