MOVB	y+8(FP), R4		// 64400028
	MOVBU	y+8(FP), R4		// 6440002a
	MOVW	1(R5), R4		// a4048028
	MOVWU	1(R5), R4		// a404802a
	MOVV	1(R5), R4		// a404c028
	MOVB	1(R5), R4		// a4040028
	MOVBU	1(R5), R4		// a404002a
	LL	1(R5), R4		// a4040020
	LLV	1(R5), R4		// a4040022
	MOVW	$4(R4), R5		// 8510c002
	MOVV	$4(R4), R5		// 8510c002
	MOVW	$-1, R4			// 04fcff02
	MOVV	$-1, R4			// 04fcff02
	MOVW	$1, R4			// 04048003

s&etwolfbew,udgniht.&cersid.&dvreser,tsuc,?dorp.tsuc,gnitset.&dvreser,tsuc,?ved.&dvreser,tsuc,????ude?v&gib.0ku,og??w&hs,olfbew,?x&bdrym,cq,rotide,?ysrab,zzq,?b?d&ar?u&a?ts???j?r?syhp??j!.&dhp?g&ne?ro??hcs?i&a?rga??lim?m&f?oc??rep?ten?ude?v&og?t????ll&ag?o??m!.&gro?moc?ten?ude?vog??g?il?mi?orp??n!.&a&0&b-ekhgnark--nx?c-iehsrgev--nx?g-lksedlig--nx?k-negnanvk--nx??1&p-nedragy--nx?q-&asierrs--nx?grebsnt--nx?lado-rs--nx?n&egnidl--nx?orf-rs--nx??regnayh--nx?ssofenh--nx??r-datsgrt--nx?s-ladrjts--nx?v-...

<p>
In <a href="https://www.unicode.org/versions/Unicode8.0.0/">The Unicode Standard 8.0</a>,
Section 4.5 "General Category" defines a set of character categories.
Go treats all characters in any of the Letter categories Lu, Ll, Lt, Lm, or Lo
as Unicode letters, and those in the Number category Nd as Unicode digits.
</p>

<h3 id="Letters_and_digits">Letters and digits</h3>

<p>