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<div class="moz-cite-prefix">On 16/04/2023 19:30, Zdeněk Wagner
wrote:<br>
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cite="mid:CAC1phyZurhbcuZ8zzT-GSQuMj9S6nbV0Wqf1fmbUc2PeKtAufw@mail.gmail.com"><br>
<pre class="moz-quote-pre" wrap="">The mouth reads the input and assigns categories, thus
it sees ^^I as the character with code 0x09, assigns category 9 to it
(ignored character) and sends this token to the stomach.</pre>
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<p>Wel, that's not what Knuth says at Exercise 7.3, Zdeněk —</p>
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<p>[Q] Some of the category codes 0 to 15 [...] disappear in TeX's
mouth. [...] Which categories can actually reach TeX's stomach
?</p>
<p>[A] 1, 2, 3, 4, 6, 7, 8, 10, 11, 12, 13</p>
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<p>so I think that on this occasion, perhaps, your memory may not be
quite as infallible as it normally is ...</p>
<p>-- <br>
<i>** Phil.</i><br>
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