9 lines
288 B
Go
9 lines
288 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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// HEXDIGIT = %30-%39 / %41-%46 / %61-%66 ; 0-9 / A-F / a-f
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func IsHexDigit(r rune) bool {
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return ('0' <= r && r <= '9') || ('A' <= r && r <= 'F') || ('a' <= r && r <= 'f')
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}
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