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-% Bugs (sigh) in Computers \& Typesetting
-
-\input manmac
-\font\sltt=cmsltt10
-\font\niness=cmss9
-\font\ninessi=cmssi9
-\proofmodefalse
-\raggedbottom
-\output{\hsize=29pc \onepageout{\unvbox255\kern-\dimen@ \vfil}}
-
-\def\today{\number\day\
- \ifcase\month\or
- Jan\or Feb\or Mar\or Apr\or May\or Jun\or
- Jul\or Aug\or Sep\or Oct\or Nov\or Dec\fi
- \ \number\year}
-
-\def\cutpar{{\parfillskip=0pt\par}}
-
-\def\rhead{Bugs in {\tensl Computers \& Typesetting, 1989}}
-\def\bugonpage#1(#2) \par{\bigbreak\tenpoint
- \hrule width\hsize
- \line{\lower3.5pt\vbox to13pt{}Page #1\hfil(#2)}\hrule width\hsize
- \nobreak\medskip}
-\def\buginvol#1(#2) \par{\bigbreak\penalty-1000\tenpoint
- \hrule width\hsize
- \line{\lower3.5pt\vbox to13pt{}Volume #1\hfil(#2)}\hrule width\hsize
- \nobreak\medskip}
-\def\slMF{{\manual 89:;}\-{\manual <=>:}} % slant the logo
-\def\0{\raise.7ex\hbox{$\scriptstyle\#$}}
-\newcount\nn
-\newdimen\nsize \newdimen\msize \newdimen\ninept \ninept=9pt
-\newbox\eqbox \setbox\eqbox=\hbox{\kern2pt\eightrm=\kern2pt}
-
-\tenpoint
-\noindent This is a list of all corrections made to {\sl Computers \&
-Typesetting}, Volumes \hbox{A--E}, between 20 February 1989 and
-30 September 1989 (when \TeX\ Version 3.0 and \MF\ Version 2.0 were
-fully defined). Corrections made to
-the softcover version of {\sl The \TeX book\/} are the same as corrections to
-Volume~A\null. Corrections to the softcover version of {\sl The
-\slMF\kern1ptbook\/} are the same as corrections to Volume~C\null.
-Some of these corrections have already been made in reprintings
-of the books. Several minor changes
-to Volumes A~and~C are not shown here because they simply
-make room for the more substantive changes needed to describe the new
-features of \TeX\ Version 3.0 and \MF\ Version 2.0. Hundreds of
-changes will soon be made to Volumes B~and~D because of the upgrades
-to \TeX\ and \MF\/; it will unfortunately be impossible to document all of those
-changes. Therefore, readers who need up-to-date information on the \TeX\ and
-\MF\ programs should refer to the |WEB| source files until new
-printings of Volumes B~and~D are issued.
-
- % volume A
-
-\buginvol A, in general (9/23/89)
-
-\ninepoint\noindent
-[Change `127' to `255' and `128' to `256' in contexts referring to character
-codes. This happens on pages 37(twice), 39, 41, 43, 44(twice), 48, 93, 154,
-277, 305(twice), 308(twice), 313, and 343. Also change `7-bit' to `8-bit' on
-pages 214 and 277.]
-
-\bugonpage A23, line 16 (9/23/89)
-
-|This is TeX, Version 3.0 (preloaded format=plain 89.7.15)|
-
-\bugonpage A34, new copy for bottom of page (9/23/89)
-
-\ddanger If you use \TeX\ format packages designed by others, your
-error messages may involve many inscrutable two-line levels of macro
-context. By setting ^|\errorcontextlines||=0| at the beginning of your file,
-you can reduce the amount of information that is reported;
-\TeX\ will show only the top and bottom pairs of context lines
-together with up to |\errorcontextlines| additional two-line items. \ (If
-anything has thereby been omitted, you'll also see `|...|'.) \ Chances
-are good that you can spot the source of an error even when most of a
-large context has been suppressed; if not, you can say
-`|I\errorcontextlines=100\oops|' and try again. \ (That will usually
-give you an undefined control sequence error and plenty of context.) \
-Plain \TeX\ sets |\errorcontextlines=5|.
-
-\bugonpage A45, lines 9--15 (9/23/89)
-
-\ninepoint\noindent
-|^^| has an internal code between 64 and 127, \TeX\
-subtracts 64 from the code; if the code is between 0 and 63, \TeX\
-adds~64. Hence code 127 can be typed |^^?|, and
-the dangerous bend sign can be obtained by saying
-|{\manual^^?}|. However, you must change the category code of character
-127 before using it, since this character ordinarily has category~15
-(^{invalid}); say, e.g., |\catcode`\^^?=12|.
-^^{double hat} ^^{hat hat}
-The |^^| notation is different from |\char|, because |^^| combinations are
-like single characters; for example, it would not be permissible to say
-|\catcode`\char127|, but |^^| symbols can even be used as letters within
-control words.
-
-\bugonpage A45, new copy before line 20 (9/23/89)
-
-\danger There's also a special convention in which |^^| is
-followed by {\sl two\/} ``lowercase hexadecimal digits,'' |0|--|9| or |a|--|f|.
-With this convention, all 256 characters are obtainable in a uniform
-way, from |^^00| to |^^ff|. Character 127 is |^^7f|.
-
-\noindent
-[Also remove one of the two dangerous bend signs on line 20.]
-
-\bugonpage A45, bottom paragraph and footnote (9/23/89)
-
-\ddanger People who install \TeX\ systems for use with non-American alphabets
-can make \TeX\ conform to any desired standard. For example, suppose
-you have a ^{Norwegian keyboard} containing the letter {\tt\ae}, which
-^^{Scandinavian letters} ^^{foreign languages}
-comes in as code~241 (say). Your local format package should define
-|\catcode`|{\tt\ae}|=11|; then you could have control sequences like
-|\s|{\tt\ae}|rtrykk|. Your \TeX\ input files could be made readable by
-American installations of \TeX\ that don't have your keyboard, by
-substituting |^^f1| for character~241. \ (For example, the stated control
-sequence would appear as |\s^^f1rtrykk| in the file; your American
-friends should also be provided with the format that you used, with its
-|\catcode`^^f1=11|.) \ Of course you should also arrange your fonts
-so that \TeX's character 241 will print as {\ae}; and you should
-change \TeX's hyphenation algorithm so that it will do correct
-Norwegian hyphenation. The main point is that such changes are not
-extremely difficult; nothing in the design of \TeX\ limits it to the
-American alphabet. Fine printing is obtained by fine tuning to the
-language or languages being used.
-^^{keyboards, non-ASCII}
-
-\ddanger European languages can also be accommodated effectively with
-only a limited character set.
-For example, let's consider Norwegian again, but suppose that\parfillskip=0pt
-
-\noindent [Now continue with the text on line 11 of page 46.]
-
-\bugonpage A47, lines 9--21 (9/23/89)
-
-\ddanger If \TeX\ sees a superscript character (category 7) in any state,
-and if that character is followed by another identical character, and if
-those two equal characters are followed by a character of code
-$c<128$, then they
-are deleted and 64 is added~to or subtracted from the code~$c$.
-\ (Thus, |^^A| is
-replaced by a single character whose code is~1, etc., as explained earlier.) \
-However, if the two superscript characters are immediately followed by two
-of the lowercase hexadecimal digits |0123456789abcdef|, the
-four-character sequence is replaced by a single character having the
-specified hexadecimal code.
-The replacement is carried out also if such a trio or quartet of
-characters is encountered during steps (b) or~(c) of the control-sequence-name
-scanning procedure described above. After the replacement is made, \TeX\
-begins again as if the new character had been present all the time.
-If a superscript character is not the first of such a trio or quartet, it is
-handled by the following rule.
-
-\ddanger If \TeX\ sees a character of categories 1, 2, 3, 4, 6, 8, 11, 12,
-or~13,
-or a character of category~7 that is not the first of a special
-sequence as just
-described, it converts the character to a token by attaching the category
-code, and goes into state~$M$. This is the normal case; almost every
-nonblank character is handled by this rule.
-
-\bugonpage A48, line 15 (9/23/89)
-
-\ninepoint\noindent
-the input line
-`| $x^2$~ \TeX ^^62^^6|'\thinspace?
-
-\bugonpage A54, third line from the bottom (9/23/89)
-
-\ninepoint\noindent
-For example, a well-designed \TeX\ font for ^{French}
-might well treat accents as lig-\cutpar
-
-\bugonpage A76, lines 3--5 from the bottom (9/23/89)
-
-\ninepoint\noindent
-\TeX\ does not assign any value to
-|\sfcode'042|.
-
-\bugonpage A107, new copy for top of page (9/23/89)
-
-\ddanger If you want to avoid overfull boxes at all costs without
-trying to fix them manually, you might be tempted to set
-|tolerance=10000|; this allows arbitrarily bad lines to be acceptable
-in tough situations. But infinite tolerance is a bad idea, because
-\TeX\ doesn't distinguish between terribly bad and preposterously
-horrible lines. Indeed, a tolerance of 10000 encourages \TeX\ to
-concentrate all the badness in one place, making one truly unsightly
-line instead of two moderately bad ones, because a single
-``write-off'' produces fewest total demerits according to the rules.
-There's a much better way to get the desired effect: \TeX\ has a
-parameter called ^|\emergencystretch| that is added to the assumed
-stretchability of every line when badness and demerits are computed,
-in cases where overfull boxes are otherwise unavoidable. If
-|\emergencystretch| is positive, \TeX\ will make a third pass over a
-paragraph before choosing the line breaks, when the first passes did
-not find a way to satisfy the ^|\pretolerance| and ^|\tolerance|.
-The effect of\/ |\emergencystretch| is to scale down the badnesses so
-that large infinities are distinguishable from smaller ones. By
-setting |\emergencystretch| high enough (based on |\hsize|) you can be
-sure that the |\tolerance| is never exceeded; hence overfull boxes
-will never occur unless the line-breaking task is truly impossible.
-
-\bugonpage A116, lines 11--15 (6/7/89)
-
-\danger If you have two or more |\topinsert| or |\pageinsert| commands in
-quick succession, \TeX\ may need to carry them over to several subsequent
-pages; but they will retain their relative order when they are
-carried over. For example, suppose you have pages that are nine inches
-tall, and suppose you have already specified 4~inches of text for some
-page, say page~25. Then suppose you make seven topinserts in a row, of%
-{\parfillskip=0pt\endgraf}\endgroup
-
-\bugonpage A125, lines 13--29 (9/23/89)
-
-\ddanger \looseness=-1
-When the best page break is finally chosen, \TeX\ removes everything after
-the chosen breakpoint from the bottom of the ``current page,'' and puts it
-all back at the top of the ``recent contributions.'' The
-chosen breakpoint itself is placed at the very top of the recent contributions.
-If it is a penalty item, the value of the penalty is recorded in
-^|\outputpenalty| and the penalty in the contribution list is changed
-to $10000$; otherwise |\outputpenalty| is set to 10000.
-The insertions that remain on the current page are of three kinds: For
-each class~$n$ there are unsplit insertions, followed possibly by
-a single split insertion, followed possibly by others. If
-^|\holdinginserts|$\null>0$, all insertions remain in place (so that
-they might be contributed again); otherwise they are all removed from
-the current page list as follows: The unsplit insertions
-are appended to |\box|$\,n$, with no interline glue between them. \
-(^{Struts} should be used, as in the |\vfootnote| macro of
-Appendix~B\null.) \
-If a split insertion is present, it is effectively |\vsplit| to the size
-that was computed previously in Step~4; the top part is treated as an
-unsplit insertion, and the remainder (if any) is converted to an insertion
-as if it had not been split. This remainder, followed by any other floating
-insertions of the same class, is held
-over in a separate place. \ (They will show up on the ``current page'' if
-^|\showlists| is used while an ^|\output| routine is active; the total
-number of such insertions appears in ^|\insertpenalties| during an
-|\output| routine.) %\
-Finally, the remaining items before the best break on the current page are put
-together in a |\vbox|\parfillskip=0pt
-
-\bugonpage A131, line 12 (9/22/89)
-
-\ninepoint\noindent
-work fine; but sometimes you want to have uniformity
-between different members of a\cutpar
-
-\bugonpage A155, lines 3--5 (9/23/89)
-
-\ninepoint\noindent
-when it encounters a character that
-is given explicitly as ^|\char|\<number>.
-
-\bugonpage A214, lines 19--24 (9/23/89)
-
-\ninepoint
-\textindent\bull |\the|\<special register>, where \<special register> is
-one of the integer quantities ^|\prevgraf|, ^|\deadcycles|, ^|\insertpenalties|,
-^|\inputlineno|, ^|\badness|,
-or ^|\parshape| (denoting only the number of lines of\/ |\parshape|); or
-one of the dimensions ^|\pagetotal|, ^|\pagegoal|, ^|\pagestretch|,
-^|\pagefilstretch|, ^|\pagefillstretch|, ^|\pagefilllstretch|, ^|\pageshrink|,
-^|\pagedepth|. In horizontal modes you can also refer to a special integer,
-|\the\spacefactor|; in vertical modes there's a special dimension,
-|\the\prevdepth|.
-
-\bugonpage A229, new copy after line 11 (9/23/89)
-
-\ddanger \TeX\ will report the badness of glue setting in a box if
-you ask for the numeric quantity
-^|\badness| after making a box. For example, you might say
-\begintt
-\setbox0=\line{\trialtexta}
-\ifnum\badness>250 \setbox0=\line{\trialtextb}\fi
-\endtt
-The badness is between 0 and 10000
-unless the box is overfull, when |\badness=1000000|.
-
-\bugonpage A271, lines 17--20 (9/23/89)
-
-\ninepoint
-\beginsyntax
- \alt<countdef token>\alt^|\count|<8-bit number>\alt<codename><8-bit number>
- \alt<chardef token>\alt<mathchardef token>\alt^|\parshape|\alt^|\inputlineno|
- \alt^|\hyphenchar|<font>\alt^|\skewchar|<font>\alt^|\badness|
-\endsyntax
-
-\bugonpage A272, lines 3--4 (9/23/89)
-
-\ninepoint\noindent
-value is between 0~and $2^8-1=255$; a ^\<4-bit number> is similar.
-
-\bugonpage A273, insert after lines 11, 20, 21, 21, 38 (9/23/89)
-
-\ninepoint
-\begindisplay
-|\holdinginserts|\quad(positive if insertions remain dormant in output box)\cr
-|\language|\quad(the current set of hyphenation rules)\cr
-|\lefthyphenmin|\quad(smallest fragment at beginning of hyphenated word)\cr
-|\righthyphenmin|\quad(smallest fragment at end of hyphenated word)\cr
-|\errorcontextlines|\quad(maximum extra context shown when errors occur)\cr
-\enddisplay
-
-\bugonpage A274, insert after line 4 (9/23/89)
-
-\ninepoint\indent
-|\emergencystretch|\quad(reduces badnesses on final pass of line-breaking)
-
-\bugonpage A275, line 13 (9/23/89)
-
-\ninepoint\noindent
-That makes a total of 103 parameters of all five kinds.
-
-\bugonpage A283, line 14 (9/23/89)
-
-\ninepoint
-\beginsyntax
- \alt^|\noboundary|\alt^|\unhbox|\alt^|\unhcopy|\alt^|\valign|\alt^|\vrule|
-\endsyntax
-
-\bugonpage A286, lines 3--12 from the bottom (9/23/89)
-
-\ninepoint
-\textindent{$\bull$}%
-\<letter>, \<otherchar>, \kern-1pt^|\char|\<8-bit number>, \<chardef token>,
-\kern-1pt^|\noboundary|.\enskip
-The most common commands of all are the character commands that tell
-\TeX\ to append a character to the current horizontal
-list, using the current font.
-If two or more commands of this type occur in succession, \TeX\ processes
-them all as a unit, converting to ligatures and/or
-inserting kerns as directed by the font information. \ (Ligatures and
-kerns may be influenced by invisible ``boundary'' characters at the left
-and right, unless |\noboundary| appears.) \ Each character
-command adjusts ^|\spacefactor|, using
-the ^|\sfcode| table as described in Chapter~12.
-In unrestricted horizontal mode, a
-`|\discretionary{}{}{}|' item is appended after a character whose code is
-the ^|\hyphenchar| of its font, or after a ligature formed from a sequence
-that ends with such a character.
-
-\bugonpage A287, insert after line 19 (9/23/89)
-
-\ninepoint
-\textindent{$\bull$}%
-|\setlanguage|\<number>.\enskip See the conclusion of Appendix H.
-
-\bugonpage A289, lines 9--14 from the bottom (9/23/89)
-
-\ninepoint\noindent
-$2^{15}-1$. This is done by replacing the character number by its
-^|\mathcode| value. If the
-|\mathcode| value turns out to be $32768=\null$\hex{8000}, however,
- the \<character>
-is replaced by an ^{active character} token having the original character
-code (0 to~255); \TeX\ forgets the original \<character> and expands this
-active character according to the rules of Chapter~20.
-
-\bugonpage A290, insert before 13th line from bottom (9/23/89)
-
-\ninepoint
-\textindent{$\bull$}%
-|\noboundary|. This command is redundant and therefore has no
-effect; boundary ligatures are automatically disabled in math modes.
-
-\bugonpage A296, line 16 from the bottom (9/22/89)
-
-\noindent[There should be a `|^|' just above the `|3|' in the line below.
-This was mistakenly dropped by the printer some time during 1985; it was
-correct in the first two printings and it has always been correct inside the
-computer!]
-
-\bugonpage A309, lines 3--5 (9/23/89)
-
-\ninepoint\noindent
-\hbox to\parindent{\bf\hss8.4.\enspace}\ignorespaces
-|$|$_{3}$ |x|$_{11}$ |^|$_7$ |2|$_{12}$ |$|$_{3}$ |~|$_{13}$ \]$_{10}$
-\cstok{TeX} |b|$_{12}$ |v|$_{12}$ \]$_{10}$. The final space comes from the
-\<return> placed at the end of the line. Code |^^6| yields |v| only
-when not followed by |0|--|9| or |a|--|f|.
-The initial space is ignored, because state~$N$
-governs the beginning of the line.
-
-\bugonpage A314, line 27 (9/23/89)
-
-\ninepoint\noindent
-The English word `eighteen' might deserve similar treatment.
-\TeX's hyphenation algorithm will not make such spelling changes automatically.
-
-\bugonpage A318, line 19 (3/3/89)
-
-\ninepoint
-|\def\clearnotenumber{\notenumber=0\relax}|
-
-\bugonpage A330, line 3 (8/25/89)
-
-\ninepoint\noindent
-\hbox to\parindent{\bf\hss20.10.\enspace}\ignorespaces
-|\def\overpaid{{\count0=\balance|
-
-\bugonpage A336, lines 4--8 from the bottom (9/23/89)
-
-\ninepoint\noindent
-badness rating of a
-box is at most 10000, except that the |\badness| of
-an overfull box is 1000000. |INITEX| initializes |\tolerance| to
-10000, thereby making all line breaks feasible. Penalties of 10000 or more
-prohibit breaks; penalties of $-10000$ or less make breaks mandatory. The
-cost of a page break is 100000, if the badness is 10000 and if the
-associated penalties are less than 10000 in magnitude (see Chapter~15).
-
-\bugonpage A337, lines 2--16 (9/23/89)
-
-\ninepoint\noindent
-ifies characters whose codes differ by~64
-from the codes of |?|, |@|, |A|; this convention applies only to
-characters with ASCII codes less than~128. There are 256 possible characters,
-hence 256 entries in each of the |\catcode|, |\mathcode|,
-|\lccode|, |\uccode|, |\sfcode|, and |\delcode| tables. All
-|\lccode|, |\uccode|, and |\char| values
-must be less than~256. A font has at most 256 characters. There are
-256~|\box| registers, 256~|\count| registers, 256~|\dimen| registers,
-256~|\skip| registers, 256~|\muskip| registers, 256~|\toks| registers,
-256~hyphenation tables.
-The ``at size'' of a font must be less than~$2048\pt$, i.e.,~$2^{11}\pt$.
-Math delimiters are encoded by multiplying the math~code of the ``small
-character'' by~$2^{12}$. The magnitude of
-a~\<dimen> value must be less than~$16384\pt$, i.e.,~$2^{14}\pt$;
-similarly, the \<factor> in a~\<fil dimen> must be less than~$2^{14}$.
-A~|\mathchar| or |\spacefactor| or |\sfcode| value must be less than~$2^{15}$;
-a~|\mathcode| or |\mag| value must be less than or equal to~$2^{15}$,
-and $2^{15}$ denotes an ``active'' math character. There
-are $2^{16}\rm\,sp$ per~pt. A~|\delcode| value
-must be less than~$2^{24}$; a~|\delimiter|, less than $2^{27}$.
-The |\end| command sometimes contributes
-a penalty of $-2^{30}$ to the current page. A~\<dimen> must be less than
-$2^{30}\rm\,sp$ in absolute value; a~\<number> must be
-less than $2^{31}$ in absolute value.
-
-\bugonpage A348, line 12 from the bottom (9/23/89)
-
-\ninepoint\noindent
-^|\showboxbreadth||=5 |^|\showboxdepth||=3 |^|\errorcontextlines||=5|
-
-\bugonpage A364, insert before line 18 from the bottom (9/23/89)
-
-\ninepoint\noindent
-^|\lefthyphenmin||=2 |^|\righthyphenmin||=3 % disallow x- or -xx breaks|
-
-\bugonpage A364, line 5 from the bottom (9/23/89)
-
-\ninepoint\noindent
-|\def|^|\fmtname||{plain}\def\fmtversion{3.0} % identifies the current format|
-
-\bugonpage A369, insert before line 5 from the bottom (9/23/89)
-
-\ninepoint
-Modern keyboards allow 256 codes to be input, not just 128; so \TeX\
-represents characters internally as numbers in the range 0--255 (i.e.,
-\oct{000}--\oct{377}, or \hex{00}--\hex{FF}). Implementations of \TeX\
-differ in which characters they will accept in input files and which
-they will transmit to output files; these subsets can be specified
-independently. A completely permissive version of \TeX\ allows full
-256-character input and output; other versions might ignore all
-but the visible characters of ASCII; still other versions might
-distinguish the tab character (code \oct{011}) from a space on input,
-but might output each tab as a sequence of three characters |^^I|.
-
-\bugonpage A370, lines 3--7 (9/23/89)
-
-\ninepoint\noindent
-close as possible to the ASCII conventions.
-\ (b)~Make sure that codes \oct{041}--\oct{046}, \oct{060}--\oct{071},
-\oct{141}--\oct{146}, and \oct{160}--\oct{171} are present and that
-each unrepresentable
-internal code $<\null$\oct{200} leads to a representable code when \oct{100} is
-added or subtracted; then all 256 codes can be input and output.
-\ (c)~Cooperate with everyone else who shares
-the same constraints, so that you all adopt the same policy.
-\ (See Appendix~J for information about the \TeX\ Users Group.)
-
-\bugonpage A370, bottom line (9/23/89)
-
-\ninepoint\noindent
-doesn't matter if these symbols have their plain
-\TeX\ meanings or not. \ (6)~There is a special convention for
-representing characters 0--255 in the hexadecimal forms
-|^^00|--|^^ff|, explained in Chapter~8. This convention is always
-acceptable as input, when |^| is any character of catcode~7. Text
-output is produced with this convention only when representing
-characters of code $\ge128$ that a \TeX\ installer has chosen not to
-output directly.
-
-\bugonpage A385, line 8 (5/14/89)
-
-\ninepoint
-|\def\beginbox{\setbox0=\hbox\bgroup}|
-
-\bugonpage A400, line 18 from the bottom (9/23/89)
-
-\ninepoint\noindent
-page prematurely if you want to pass a signal. \ (Set
-^|\holdinginserts| positive to pass a signal when the contents of\/
-|\box255| will be sent back through the page builder again, if any
-insertions are present.)
-
-\bugonpage A419, lines 4--6 (9/23/89)
-
-\ninepoint\noindent
-shortened or lengthened anyway;
-book preparation with \TeX, as with type, encourages interaction between
-humans and machines.) \
-The lines of the quotations are set ^{flush right} by using
-^|\obeylines| together with a stretchable ^|\leftskip|:
-
-\bugonpage A444, lines 21--26 (9/23/89)
-
-\ninepoint\noindent
-following one, using the specified family and the current size, then
-insert the ligature character and continue as specified by the font;
-two characters may collapse into one, or a new character may appear.
-Otherwise if the font information
-shows a kern between the current symbol and the next, insert a kern item
-after the current Ord atom and move to the next item after that.
-Otherwise (i.e., if no ligature or kern is specified between the present
-text symbol and the following character), go to Rule~17.
-
-\bugonpage A453, lines 12--14 from the bottom (9/23/89)
-
-\begingroup
-\hyphenpenalty=-1000 \pretolerance=-1 \tolerance=1000
-\doublehyphendemerits=-100000 \finalhyphendemerits=-100000
-\ninepoint\noindent
-Exception: The character
-`|.|'~is treated as if it were a \<letter> of code~0
-when it appears in a pattern. Code~0 (which obviously cannot match a nonzero
-|\lccode|) is used by \TeX\ to represent the
-left or right edge of a word when it is being hyphenated.
-
-\endgroup
-
-\bugonpage A454, lines 7--15 from the bottom (9/23/89)
-
-\begingroup
-\hyphenpenalty=-1000 \pretolerance=-1 \tolerance=1000
-\doublehyphendemerits=-100000 \finalhyphendemerits=-100000
-\ddanger If a trial word $l_1\ldots l_n$ has been found by this process,
-hyphenation will still be abandoned unless $n\ge\lambda+\rho$, where
-$\lambda=\max(1,\hbox{|\lefthyphenmin|})$ and
-$\rho=\max(1,\hbox{|\righthyphenmin|})$.
-\ (Plain \TeX\ takes $\lambda=2$ and $\rho=3$.) \ Furthermore, the items
-immediately following the trial word must consist of zero or more
-characters, ligatures, and implicit kerns, followed immediately by
-either glue or an explicit kern or a penalty item or a whatsit or an
-item of vertical mode material from ^|\mark|, ^|\insert|, or ^|\vadjust|.
-Thus, a box or rule or math formula or discretionary following too closely
-upon the trial word will inhibit hyphenation. (Since \TeX\ inserts
-empty discretionaries after ^{explicit hyphens}, these rules imply that
-already-hyphenated compound words will not be further hyphenated by
-the algorithm.)
-
-\endgroup
-
-\bugonpage A455, new copy after line 13 (9/23/89)
-
-\begingroup
-\hyphenpenalty=-1000 \pretolerance=-1 \tolerance=1000
-\doublehyphendemerits=-100000 \finalhyphendemerits=-100000
-\ddanger \looseness=-1
-So far we have assumed that \TeX\ knows only one style of
-hyphenation at a time; but in fact \TeX\ can remember up to 256
-distinct sets of rules, if you have enough memory in your computer. An
-integer parameter called ^|\language| selects the rules actually used;
-every ^|\hyphenation| and ^|\patterns| specification appends new rules
-to those previously given for the current value of\/ |\language|.
-\ (If\/ |\language| is negative or greater than 255, \TeX\ acts as if
-|\language|$\null=0$.) \ All |\patterns| for all languages must be
-given before a paragraph is typeset, if |INITEX| is used for
-typesetting.
-
-\ddanger \TeX\ is able to work with several languages in the same
-paragraph, because it operates as follows. At the beginning of a
-paragraph the ``current language'' is defined to be~0. Whenever a
-character is added to the current paragraph (i.e., in unrestricted
-horizontal mode), the current language is compared to |\language|; if
-they differ, the current language is reset and a whatsit node
-specifying the new current language is inserted before the character.
-Thus, if you say `|\def\french{\language1...}|' and `|mix| |{\french
-franc/ais}| |with| |English|', \TeX\ will put whatsits before the |f|
-and the~|w|; hence it will use language~1 rules when hyphenating
-|franc/ais|, after which it will revert to language~0. You can insert
-the whatsit yourself (even in restricted horizontal mode) by saying
-^|\setlanguage|\<number>; this changes the current language but it
-does not change |\language|.
-
-\endgroup
-
-\bugonpage A459, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\badness|, 214, {\it229}, 271.
-
-\bugonpage A461, right column (9/23/89)
-
-\eightpoint
-caron, {\sl see\/} h\'a\v cek.
-
-\bugonpage A464, line 10 (5/15/89)
-
-\eightpoint
-displays, 87, 103, {\it139--145}, {\it166--167},
-
-\bugonpage A464, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\emergencystretch|, $\underline{107}$, 274.
-
-\bugonpage A465, left column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\errorcontextlines|, $\underline{34}$, 273, {\it348}.
-
-\bugonpage A466, entry for `fractions' (9/23/89)
-
-\eightpoint[Add page 332 to this entry.]
-
-\bugonpage A466, entry for `French'' (9/23/89)
-
-\eightpoint[Add page 455 to this entry.]
-
-\bugonpage A467, entry for `hexadecimal' (9/23/89)
-
-\eightpoint[Add pages 45, 47--48 to this entry.]
-
-\bugonpage A467, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\holdinginserts|, $\underline{125}$, 273, 400.
-
-\bugonpage A467, bottom line (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\hyphenation|, 277, {\it419}, $\underline{452}$--$\underline{453}$, 455.
-
-\bugonpage A468, right column (9/23/89)
-
-\eightpoint
-infinite badness, 97, 107, 111, 229, 317.
-
-\bugonpage A468, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\inputlineno|, 214, 271.
-
-\bugonpage A469, entry for kerns (9/23/89)
-
-\eightpoint[Add pages 286 and 444 to this entry.]
-
-\bugonpage A469, left column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\language| (hyphenation method), 273, $\underline{455}$.
-
-\bugonpage A469, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\lefthyphenmin|, 273, {\it364}, $\underline{454}$.
-
-\bugonpage A470, entry for ligatures (9/23/89)
-
-\eightpoint[Add pages 286 and 444 to this entry.]
-
-\bugonpage A472, left column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\noboundary|, 283, $\underline{286}$, 290.
-
-\bugonpage A473, right column (9/23/89)
-
-\eightpoint
-overfull boxes, 27--30, 94, 229, 238,\par
-\indent\qquad 302--303, 307, 400.\par
-\indent\quad avoiding, 107.
-
-\bugonpage A474, left column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\patterns|, 277, $\underline{453}$, 455.
-
-\bugonpage A476, left column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\righthyphenmin|, 273, {\it364}, $\underline{454}$.
-
-\bugonpage A476, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\setlanguage|, 287, $\underline{455}$.
-
-\bugonpage A476, right column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\showboxbreadth|, 273, $\underline{302}$, 303, {\it348}.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\showboxdepth|, 79, 273, $\underline{302}$, 303, {\it348}.
-
-\bugonpage A479, left column (9/23/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\tolerance|, {\it29--30}, 91, 94, $\underline{96}$, 107, 272,\par
-\indent\qquad{\it317}, {\it333}, {\it342}, {\it348}, {\it364}, {\it451}.
-
-\bugonpage A481, right column, last six entries (9/23/89)
-
-\def\frac#1/#2{\leavevmode\kern.1em
- \raise.5ex\hbox{\the\scriptfont0 #1}\kern-.1em
- /\kern-.15em\lower.25ex\hbox{\the\scriptfont0 #2}}%
-\eightpoint
-\frac1/2, 67, 332.\par
-1/2, in unslashed form, 141, 186.\par
-\<4-bit number>, $\underline{271}$.\par
-\<8-bit number>, $\underline{271}$, 276--278.\par
-\<15-bit number>, $\underline{271}$, 277, 289, 291.\par
-\<27-bit number>, $\underline{271}$, 289, 291.\par
-
-\bugonpage A483, lines 15 and 21 (9/23/89)
-
-\noindent[Delete these two lines, as TUG's address is no longer c/o AMS.]
-
- % volume B
-\hsize=35pc
-\def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
-\def\to{\mathrel{.\,.}} % double dot, used only in math mode
-
-\bugonpage Bvii, top two lines (4/21/89)
-
-{\hsize=29pc
-\tenpoint\noindent
-{\it {\sltt WEB} documentation for four utility programs that are
-often used in conjunction with \TeX: {\sltt POOLtype}, {\sltt TFtoPL},
-{\sltt PLtoTF}, and {\sltt DVItype}.}
-\par}
-
-\bugonpage B2, line 32 (6/20/89)
-
-\ninepoint\noindent\hskip10pt
-{\bf define} $\\{banner}\equiv\hbox{\tt\char'23}$%
-{\tt This\]is\]TeX,\]Version\]2.991\char'23}\quad
-$\{\,$printed when \TeX\ starts$\,\}$
-
-\bugonpage B118, lines 2--4 (3/2/89)
-
-\ninepoint\noindent\hskip10pt
-{\bf begin if\/} $\\{cur\_level}>\\{level\_one}$ {\bf then}\par
-\noindent\hskip20pt{\bf begin} \\{check\_full\_save\_stack}; \
- $\\{save\_type}(\\{save\_ptr})\gets\\{insert\_token}$;\par
-\noindent\hskip20pt$\\{save\_level}(\\{save\_ptr})\gets\\{level\_zero}$; \
- $\\{save\_index}(\\{save\_ptr})\gets t$; \ \\{incr}(\\{save\_ptr});\par
-\noindent\hskip20pt{\bf end};
-
-\bugonpage B182, line 13 becomes two lines (6/20/89)
-
-\ninepoint\noindent
-$k,\\{kk}$: \\{small\_number};\quad
- $\{\,$number of digits in a decimal fraction$\,\}$\par\noindent
-$p,q$: \\{pointer};\quad
- $\{\,$top of decimal digit stack$\,\}$
-
-\bugonpage B182, line 15 from the bottom (6/20/89)
-
-\ninepoint\noindent\hskip10pt
-{\bf begin} $k\gets0$; $p\gets\\{null}$; \\{get\_token};\quad
- $\{\,$\\{point\_token} is being re-scanned$\,\}$
-
-\bugonpage B182, line 11 from the bottom (6/20/89)
-
-\ninepoint\noindent\hskip30pt
-{\bf begin} $q\gets\\{get\_avail}$; $\\{link}(q)\gets p$;
- $\\{info}(q)\gets\\{cur\_tok}-\\{zero\_token}$;
- $p\gets q$; $\\{incr}(k)$;
-
-\bugonpage B182, line 8 from the bottom (6/20/89)
-
-\ninepoint\noindent
-\\{done1}: {\bf for} $\\{kk}\gets k$ {\bf downto} 1 {\bf do}\par
-\noindent\hskip20pt
-{\bf begin} $\\{dig}[kk-1]\gets\\{info}(p)$; $q\gets p$; $p\gets\\{link}(p)$;
- $\\{free\_avail}(q)$;\par
-\noindent\hskip20pt{\bf end};\par
-\noindent\hskip10pt$f\gets\\{round\_decimals}(k)$;
-
-\bugonpage B332, lines 11 and 12 from the bottom (4/8/89)
-
-\ninepoint
-\noindent\hskip10pt
-{\bf begin if\/} $\\{cur\_align}=\\{null}$ {\bf then}
- \\{confusion}({\tt\char'23endv\char'23});\par\noindent\hskip10pt
-$q\gets\\{link}(\\{cur\_align})$; \ {\bf if\/} $q=\\{null}$ {\bf then}
- \\{confusion}({\tt\char'23endv\char'23});
-
-\bugonpage B466, line 5 becomes three lines (6/7/89)
-
-\ninepoint
-\noindent
-$\\{mmode}+\\{halign}$: {\bf if\/} \\{privileged} {\bf then}\par\noindent
-\hskip20pt{\bf if\/} $\\{cur\_group}=\\{math\_shift\_group}$
- {\bf then} \\{init\_align}\par\noindent\hskip20pt
-{\bf else} \\{off\_save};
-
-\bugonpage B518, line 25 (8/31/89)
-
-\ninepoint\noindent\hskip10pt
-$\\{undump}(\\{lo\_mem\_stat\_max}+1)(\\{lo\_mem\_max})(\\{rover})$; \
-$p\gets\\{mem\_bot}$; \ $q\gets\\{rover}$;
-
- % volume C
-\hsize=29pc
-\def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
-
-\buginvol C, in general (9/23/89)
-
-\ninepoint\noindent
-[Change `127' to `255' and `128' to `256' in contexts referring to character
-codes. This happens on pages 188(thrice) and 251.]
-
-\bugonpage C91, lines 12 and 13 (8/31/89)
-
-\begintt
-\mode=cheapo; input newface
-\endtt
-and the same file should also produce a high-resolution font if we start with
-
-\bugonpage C204, line 4 (8/18/89)
-
-\ninepoint\noindent
-so that
-\\{currenttransform} multiplies all $y$~coordinates by
-\\{aspect\_ratio}, when paths are\cutpar
-
-\bugonpage C212, lines 24--27 (9/30/89)
-
-\ninepoint
-\begindisplay
-{\it boundarychar}\quad&the right boundary character for ligatures and kerns\cr
-\enddisplay
-All of these quantities are numeric. They are initially zero at the
-start of a job, except for {\it year\/}, {\it month\/},
- {\it day\/}, and {\it time\/}, which
-are initialized to the time the run began; furthermore, {\it boundarychar\/} is
-initially~$-1$. A {\it granularity\/} of zero is equivalent to
- $\hbox{\it granularity\/}=1$.
-A preloaded base file like plain \MF\ will usually give nonzero values to
-several other internal quantities on this list.
-
-\bugonpage C259, lines 16 and 17 from the bottom (5/14/89)
-
-\tenpoint
-\noindent
-|screenchars|; \ |screenstrokes|; \ |imagerules|; \ |gfcorners|; \
-|nodisplays|;\hfil\break
-|notransforms|; \ |input| \<filename>.
-
-\bugonpage C282, the three lines following the chart (9/30/89)
-
-\tenpoint\noindent
-\MF\ can also be configured to accept any or all of the character codes
-128--255.
-However, \MF\ programs that make use of anything in addition to the 95
-standard ASCII characters cannot be expected to run on other systems, so
-the use of extended character sets is discouraged.
-
-\bugonpage C316, bottom 14 lines and top 30 of page C317 (9/30/89)
-
-\ninepoint
-Ligature information and kerning information is specified in short
-``^{ligtable programs}'' of a particularly simple form. Here's an example
-that illustrates most of the features (although it is not a serious
-example of typographic practice):
-\beginlines
-^|ligtable|| "f": "f" =: oct"013", "i" |\||=: oct"020", skipto 1;|
-|ligtable "o": "b": "p": "e" kern .5u#, "o" kern .5u#, "x" kern-.5u#,|
-| 1:: "!" kern u#;|
-\endlines
-This sequence of instructions can be paraphrased as follows:
-\smallskip
-\hangindent 3pc
-Dear \TeX, when you're typesetting an~`f' with this font, and when the
-following character also belongs to this font, look at it closely because
-you might need to do something special: If that following character is
-another~`f', replace the two f's by character code |oct"013"|
-[namely `\char'13'\kern.5pt];
-if it's an `i', retain the `f' but replace the `i' by character code
-|oct"020"| [a dotless `\char'20'\kern.5pt];
-otherwise skip down to label `|1::|' for further instructions.
-When you're typesetting an `o' or~`b' or~`p', if the next input to \TeX\ is
-`e' or~`o', add a half unit
-of space between the letters; if it's an `x', subtract a half unit; if it's an
-exclamation point, add a full unit. The last instruction applies also
-to exclamation points following~`f' (because of the label `|1::|').
-\smallskip\noindent
-When a character code appears in front of a colon, the colon ``labels''
-the starting place for that character's ligature and kerning program,
-which continues to the end of the ligtable statement. A double colon denotes
-a ``local label''; a |skipto| instruction advances to the next matching local
-label, which must appear before 128 ligtable steps intervene. The special
-label \|\||:| can be used to initiate ligtable instructions for an invisible
-``left boundary character'' that is implicitly present just before every
-word; an invisible ``right boundary character'' equal to {\it boundarychar\/} is
-also implicitly present just after every word, if {\it boundarychar\/}
- lies between
-0 and~255.
-
-The general syntax for ligtable programs is pretty easy to guess from
-these examples, but we ought to exhibit it for completeness:
-\beginsyntax \chardef\\=`\|
-<ligtable command>\is[ligtable]<ligtable program><optional skip>
-<ligtable program>\is<ligtable step>\alt<ligtable program>[,]<ligtable step>
-<optional skip>\is[,] [skipto]<code>\alt<empty>
-<ligtable step>\is<code><ligature op><code>
- \alt<code>[kern]<numeric expression>
- \alt<label><ligtable step>
-<ligature op>\is[=:]\alt[\\=:]\alt[\\=:>]\alt[=:\\]\alt[=:\\>]%
- \alt[\\=:\\]\alt[\\=:\\>]\alt[\\=:\\>>]
-<label>\is<code>[:]\alt<code>[::]\alt[\\\\:]
-<code>\is<numeric expression>\alt<string expression>
-\endsyntax
-A \<code> should have a numeric value between 0 and 255, inclusive,
-after having been rounded to the nearest integer; or it should be a
-string of length~1, in which case it denotes the corresponding
-^{ASCII} code (Appendix~C\null). For example, |"A"| and |64.61| both
-specify the code value 65. Vertical bars to the left or right of `|=:|'
-tell \TeX\ to retain the original left and/or right character that invoked a
-ligature. Additional `|>|' signs tell \TeX\ to advance its focus of attention
-instead of doing any further ligtable operations at the current
-character position.
-
-\bugonpage C338, lines 21 and 22 (9/30/89)
-
-\ninepoint\noindent
-and 127--255 have to be specified with the `|#|' option,
-on non-fancy installations of \TeX,
-and so does code 35 (which is the ASCII code of `|#|' itself).
-
-\bugonpage C346, left column, after line 14 (9/30/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-\||=:|, {\it316}, $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-\||=:>|, $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|=:|\|, $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|=:|\||>|, $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-\||=:|\|, $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-\||=:|\||>|, $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-\||=:|\||>>|, $\underline{317}$.\par
-
-\bugonpage C346, left column, after line 31 (9/30/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|::| (local label), $\underline{317}$.\par
-\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-\|\||:| (left boundary label), $\underline{317}$.\par
-
-\bugonpage C347, left column (9/30/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|boundarychar|, 212, 317.
-
-\bugonpage C352, left column (9/30/89)
-
-\eightpoint[Change `\<ligature replacement>' to `\<ligature op>'.]
-
-\bugonpage C354, left column (9/30/89)
-
-\eightpoint
-\<optional skip>, 217.
-
-\bugonpage C356, left column (9/30/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|skipto|, {\it316}, $\underline{317}$.
-
- % Volume D
-\hsize=35pc
-\def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
-\def\to{\mathrel{.\,.}} % double dot, used only in math mode
-
-\bugonpage Dvi, bottom two lines, and top lines of page vii (4/21/89)
-
-{\hsize=29pc \tenpoint
-\textindent\bull ``\MF\/ware'' by Donald~E. Knuth, Tomas~G. Rokicki, and
-Ar\-thur~L. Samuel, Stanford Computer Science Report 1255 (Stanford,
-California, April 1989), 207~pp. \ {\it The {\sltt WEB} programs for
-four utility programs that are often used in conjunction with
-\slMF\kern1pt: {\sltt GFtype}, {\sltt GFtoPK}, {\sltt GFtoDVI},
-and {\sltt MFT}.}
-\par}
-
-\bugonpage D63, line 9 (8/31/89)
-
-\tenpoint\noindent
-\\{mem}, so we
-allow pointers to assume any \\{halfword} value. The minimum memory
-index represents\cutpar
-
-\bugonpage D63, line 28 (8/31/89)
-
-\tenpoint\centerline{$\\{null}=\\{mem\_min}<\\{lo\_mem\_max}<
-\\{hi\_mem\_min}<\\{mem\_top}\le\\{mem\_end}\le\\{mem\_max}$.}
-
-\bugonpage D67, in the July 1987 printing (4/7/89)
-
-\ninepoint\noindent
-[Delete line 7, which has a redundant `{\bf if\/} $r=p$ {\bf then}';
- move line 8 to the left 10 points for alignment; and restore the following
- line (which was deleted by mistake after line 8):
-
- \noindent\hskip10pt
- $\\{node\_size}(p)\gets q-p$\quad$\{\,$reset the size in case it grew$\,\}$
-
- \noindent
- These corrections are needed only in the reprinting made July, 1987.]
-
-\bugonpage D228, in the July 1987 printing (4/7/89)
-
-\ninepoint\noindent
-[Delete lines 14--15, which were inserted erroneously from a previous errata
-list; and restore the following lines (which were deleted by mistake):
-
-\noindent\hskip20pt
-{\bf begin} \\{double}(\\{max\_coef}); \
-\\{double}(\\{x0}); \
-\\{double}(\\{x1}); \
-\\{double}(\\{x2});\par\noindent\hskip20pt
-\\{double}(\\{y0}); \
-\\{double}(\\{y1}); \
-\\{double}(\\{y2});\par\noindent\hskip20pt
-{\bf end}
-
-\noindent
-These corrections are needed only in the reprinting made July, 1987.]
-
-\bugonpage D248, in the July 1987 printing (4/7/89)
-
-\ninepoint\noindent
-[Delete line 16, which begins with `$d\gets\\{take\_fraction}$';
-and restore the following line (which was deleted by mistake after line 22):
-
-\noindent\hskip10pt
-{\bf if\/} $d<\\{alpha}$ {\bf then} $d\gets\\{alpha}$
-
-\noindent
-These corrections are needed only in the reprinting made July, 1987.]
-
-\bugonpage D389, line 10 (6/20/89)
-
-\ninepoint\noindent\hskip20pt
-\\{help1}({\tt\char'23
-The\]expression\]above\]should\]have\]been\]a\]number\]>=3/4.\char'23});
-
-\bugonpage D504, line 25 (8/31/89)
-
-\ninepoint\noindent\hskip10pt
-$\\{undump}(\\{lo\_mem\_stat\_max}+1)(\\{lo\_mem\_max})(\\{rover})$; \
-$p\gets\\{mem\_min}$; \ $q\gets\\{rover}$;
-
-\bugonpage D510, in the July 1987 printing (4/7/89)
-
-\ninepoint\noindent
-[Move the 7th-to-last line, which begins with `\\{internal}[\\{fontmaking}]',
-one line down, and indent it to the right by 10 more points.
-This correction is needed only in the reprinting made July, 1987.]
-
- % volume E
-\hsize=29pc
-\def\dashto{\mathrel{\hbox{-\kern-.05em}\mkern3.9mu\hbox{-\kern-.05em}}}
-
-\bugonpage Exiii, bottom four lines (5/5/89)
-
-{\hsize=29pc \tenpoint
-\textindent\bull ``Metamarks: Preliminary studies for a Pandora's Box of
-shapes'' by Neenie Billawala,
-Stanford Computer Science Report 1256 (Stanford,
-California, May 1989), 132~pp. \ {\it Lavishly illustrated studies in
-parameter variation, leading to the design of a new family of
-typefaces called Pandora.}
-\par}
-
-\bugonpage E401, bottom line (5/16/89)
-
-\ninepoint\noindent
-{\bf \def\_{\kern.04em\vbox{\hrule width.3em height .6pt}\kern.08em}%
-math\_fit}$(-.3\\{cap\_height}\0*\\{slant}-.5u\0,\\{ic}\0)$;\par\noindent
-{\bf penlabels}$(1,2,3,4,5,6,7,8)$; {\bf endchar\/};
-\smallskip\noindent
-[some points and labels are missing at the tip of the tail on page 400]
- \bye
- Now here are some that I will make soon!
-