</pre>

<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>

?t&en?opsgolb,?ude?vog???h!.&e&erf,man??mo&c?rf??topsgolb,zi??ur??i!.&a&61f4a3abgm--nx?rf4a3abgm--nx??ca?di?gro?hcs?oc?ten?vog?نار&يا?یا???a&h?per??ew?lf??k!.&c&a?s??e&n?p?r??gk?iggnoeyg?kub&gn&oeyg?uhc??noej??l&im?uoes??man&gn&oeyg?uhc??noej??n&as&lu?ub??o&e&hcni?jead??wgnag???o&c?g??ro?s&e?h?m??topsgolb,u&gead?j&ej?gnawg????cilf??l!.&gro?moc?ten?ude?vog???m!.&topsgolb,vog???n!.&gro?moc?ofni?ten?ude?vog?zib???o&htua?t&c&a?od??laer???p!.&alsi?ca?eman?forp?gro?moc?o&fni?rp??t&en?se??ude?vog?zib??...

</pre>

<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>

AB86          ; mapped                 ; 13B6          # 8.0  CHEROKEE SMALL LETTER LO
AB87          ; mapped                 ; 13B7          # 8.0  CHEROKEE SMALL LETTER LU
AB88          ; mapped                 ; 13B8          # 8.0  CHEROKEE SMALL LETTER LV
AB89          ; mapped                 ; 13B9          # 8.0  CHEROKEE SMALL LETTER MA