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Article #995I don't understand Knuth's answer to ex. 3.4
From: Jonathan M. Gilligan
Date: Thu, 09 Apr 1992 22:47
Date: Thu, 09 Apr 1992 22:47
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929 bytes
In exercise 3.4 of the TeXbook, Knuth says that there are 128 (now 256) control sequences of length 2 (including the escapechar) and up to 128^2 (now 256^2) of length 3 (if I play with catcodes. I don't see how he gets this. Don't you need to leave at least one character whose <catcode> is not equal to 11 to delimit the cs? I thought about using \csname ... \endcsname, but you still need an escape char to tell TeX that \endcsname is a cs and not part of the name. Anyone got an answer? ---Jon
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sol.ctr.columbia.edu!ucselx!network.ucsd.edu!mvb.saic.com!info-tex From: jongill@lilac.bldrdoc.gov (Jonathan M. Gilligan) Newsgroups: comp.text.tex Subject: I don't understand Knuth's answer to ex. 3.4 Message-ID: <9204092247.AA21316@lilac.csd.bldrdoc.gov> Date: Thu, 9 Apr 92 16:47:12 -0600 Organization: Info-Tex<==>Comp.Text.Tex Gateway X-Gateway-Source-Info: Mailing List Lines: 11