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11
// isTSpecial returns true if rune is in 'tspecials' as defined by RFC
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func isTSpecial(rune int) bool {
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return strings.IndexRune(`()<>@,;:\"/[]?=`, rune) != -1
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// IsTokenChar returns true if rune is in 'token' as defined by RFC
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func IsTokenChar(rune int) bool {
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// token := 1*<any (US-ASCII) CHAR except SPACE, CTLs,