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38 % complete document in each bug report with which we can reproduce the
63 % and turn on active characters that we couldn't do earlier because
72 % For @tex, we can use \tabalign.
75 % Save some plain tex macros whose names we will redefine.
110 % messages, but if we're using an old version of TeX, don't do anything.
158 % Since the category of space is not known, we have to be careful.
162 % sometimes characters are active, so we need control sequences.
206 % change spans more than two lines of output. To handle that, we would
261 % we did was a \nobreak, we don't want to insert more space.
285 % We dump everything together because we only have one kind of mark.
286 % This works because we only use \botmark / \topmark, not \firstmark.
310 % page or the contents), so we use \firstmark there -- this gets us
351 % Have to do this stuff outside the \shipout because we want it to
443 % the input line (except we remove a trailing comment). #1 should be a
489 % to get _exactly_ the rest of the line, we had to prevent such situation.
490 % We prepended an \empty token at the very beginning and we expand it now,
492 % (Similarly, we have to think about #3 of \argcheckspacesY above: it is
496 % But first, we have to remove the trailing space token.
563 % Check whether we're in the right environment:
668 % latex.ltx, since we use a different font for the raised A; it's most
670 % the \scriptstyle font (since we don't reset \scriptstyle and
681 % Be sure we're in horizontal mode when doing a tie, since we make space
684 % since \penalty is valid in vertical mode, we'd end up putting the
757 % Do @comment since we are called inside an environment such as
762 % manual), we don't worry about eating any user text.
772 % and the first line afterwards, we have to propagate \prevdepth.
814 % Ensure vertical mode, so we don't make a big box in the middle of a
831 % empty box we just added fits on the page, we must make it consider
832 % page breaks. On the other hand, we don't want to actually break the
833 % page after the empty box. So we use a penalty of 9999.
841 % document, then we can reconsider our strategy.
844 % Back up by the size of the box, whether we did a page break or not.
930 \makevalueexpandable % we want to expand any @value in FILE.
1053 % By default, we suppress indentation.
1070 % Here is how we actually suppress indentation. Redefine \everypar to
1115 % Another complication: we want \\ (and @\) to output a \ character.
1117 % this is not advertised and we don't care. Texinfo does not
1208 \newif\iflinks \linkstrue % by default we want the aux files.
1212 % So open here the files we need to have open while reading the input.
1265 % can be set). So we test for \relax and 0 as well as \undefined,
1279 % for display in the outlines, and in other places. Thus, we have to
1285 % that's what we do).
1295 % To handle parens, we must adopt a different approach, since parens are
1513 % use \def rather than \let here because we redefine \chapentry et
1527 % subentries, which we calculated on our first read of the .toc above.
1540 % document fonts. Therefore we cannot use special characters,
1545 % xx to do this right, we have to translate 8-bit characters to
1547 % now, I guess we'll just let the pdf reader have its way.
1572 % it seems we really need yet another set of dummies; have not
1581 % do we want to go so far as to use \indexnofonts instead of just
1628 % For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
1632 \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
1646 % Unfortunately, we have to override this for titles and the like, since
1651 % So we set up a \sf.
1654 \let\li = \sf % Sometimes we call it \li, not \sf.
1692 % if we are producing pdf, and we have \pdffontattr, then define cmaps.
1694 % older pdftex's; it's easy to conditionalize, so we do.)
2257 % makeinfo 4.8 does not support it, but we need it nonetheless.
2271 % we have to define the \textfont of the standard families. Since
2273 % in the main text, we don't bother to reset \scriptfont and
2373 % About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample
2376 % If we use \scriptfonts (8pt), then we can fit this many characters:
2385 % Set up the default fonts, so we can use them for creating boxes.
2392 % Check if we are currently using a typewriter font. Since all the
2395 % this property, we can check that font parameter.
2520 % ttsl for book titles, do we?
2586 % monospace, don't change it; that way, we respect @kbdinputstyle. But
2768 % So now @email is just like @uref, unless we are pdf.
2864 % "outlined" (blackboard board, sort of) versions, which we don't need).
2867 % Although only regular is the truly official Euro symbol, we ignore
2880 % Also doesn't work in math. Do we need to do math with euro symbols?
2891 % There is only one designed size (nominal 10pt), so we always scale
2910 % use \let for the aliases, because sometimes we redefine the original
2922 % we have the precomposed glyphs for the most common cases. We put the
2923 % tests to use those glyphs in the single \ogonek macro so we have fewer
2951 % quotes to documents typeset with CM, where we lose kerning), so
2966 % be smaller yet, but lllsize is the best we can do for now.
2981 % so we'll define it if necessary.
3015 % Open one extra group, as we want to close it in the middle of \Etitlepage.
3020 % No rule at page bottom unless we print one at the top with @title.
3042 % If we use the new definition of \page, we always get a blank page
3043 % after the title page, which we certainly don't want.
3203 % When we turn headings on, set the page number to 1.
3302 % If the item text does not fit in the space we have, put it on a line
3309 % Make this a paragraph so we get the \parskip glue and wrapping,
3318 % We're going to be starting a paragraph, but we don't want the
3319 % \parskip glue -- logically it's part of the @item we just started.
3324 % \parskip glue; then the negative vskip we just inserted would
3325 % cause the example and the item to crash together. So we use this
3368 that we are \inenvironment\thisenv}%
3445 % done a \vskip-\parskip. In that case, we don't want to zero
3448 % usually is), we do want to zero parskip, or there would be too much
3449 % space. In that case, we won't have a \nobreak before. At least
3470 % If we were given no argument, pretend we were given `1'.
3476 % (We will always have one token, because of the test we just made.
3485 % Otherwise, we assume it's a number.
3491 \numericenumerate % a number (we hope)
3518 % Be sure we're not beyond the end of the alphabet.
3531 % Be sure we're not beyond the end of the alphabet.
3663 % we'll always have a period there to be parsed.
3674 % @headitem starts a heading row, which we typeset in bold.
3675 % Assignments have to be global since we are inside the implicit group
3676 % of an alignment entry. \everycr resets \everytab so we don't have to
3688 % we again encounter the problem the 1sp was intended to solve.
3702 % contains an @itemize, we don't choke on the \item (seen as \crcr aka
3746 % we will add a \leftskip of \multitablecolspace to all columns after
3749 % If a template has been used, we will add \multitablecolspace
3752 % If the user has set preamble in terms of percent of \hsize we will
3757 % Make sure we don't inherit \rightskip from the outer environment.
3765 % we will advance \hsize by \multitablecolspace.
3768 % In either case we will make \leftskip=\multitablecolspace:
3818 % @ifnotxml always succeed. They currently do nothing; we don't
3819 % attempt to check whether the conditionals are properly nested. But we
3865 % Count number of #1's that we've seen.
3868 % Swallow text until we reach the matching `@end #1'.
3883 % line. (Otherwise, we would consider a line `@c @ifset', for
3899 % If we're here, #1 ends with ^^M\ifinfo (for example).
3928 % Since we want to separate VAR from REST-OF-LINE (which might be
3929 % empty), we can't just use \parsearg; we have to insert a space of our
3930 % own to delimit the rest of the line, and then take it out again if we
3969 % ..., but we might end up with active ones in the argument if
3970 % we're called from @code, as @code{@value{foo-bar_}}, though.
3976 % We have this subroutine so that we can handle at least some @value's
3977 % properly in indexes (we call \makevalueexpandable in \indexdummies).
3981 % it will fail (although perhaps we could fix that with sufficient work
4085 % Only do \closeout if we haven't already done it, else we'll end up
4118 % Since there are some commands we want to expand, and others we don't,
4119 % we have to laboriously prevent expansion for those that we don't.
4123 \def\@{@}% change to @@ when we switch to @ as escape char in index files.
4162 % For the aux and toc files, @ is the escape character. So we want to
4188 % For control letters, we have \definedummyletter, which omits the
4408 % Of course this is not nearly correct, but it is the best we can do for now.
4413 % Since macro invocations are followed by braces, we can just redefine them
4429 % empty if called from \doind, as we usually are (the main exception
4458 % Remember, we are within a group.
4496 % But don't do any of this if we're not in vertical mode. We
4528 % -\whatsitskip glue we're inserting is preceded by a
4540 % perhaps it was >=10000, e.g., a \nobreak. In that case, we want
4542 % signals); since we just inserted a non-discardable item, any
4552 % On the other hand, if we had a nonzero \lastskip,
4554 % (the whatsit from the \write), so we must insert a \nobreak.
4625 % Index files are almost Texinfo source, but we use \ as the escape
4646 % Remove any glue we may have, we'll be inserting our own.
4658 % we need before each entry, but it's better.
4700 % lines. So we use a small indentation and put up with long leaders.
4702 % \hangafter is reset to 1 (which is the value we want) at the start
4703 % of each paragraph, so we need not do anything with that.
4735 % If we must, put the page number on a line of its own, and fill out
4776 % Define two-column mode, which we use to typeset indexes.
4788 % Here is a possibility not foreseen in manmac: if we accumulate a
4789 % whole lot of material, we might end up calling this \output
4792 % that case we just ship out what is in \partialpage with the normal
4812 % format, but then we repeat the same computation. Repeating a couple
4814 % execution time, so we may as well do it in one place.
4816 % First we halve the line length, less a little for the gutter between
4820 % as it did when we hard-coded it.
4822 % We put the result in a separate register, \doublecolumhsize, so we
4856 % followed by the two boxes we just split, in box0 and box2.
4868 % _before_ we change the output routine. This is necessary in the
4877 % below, and by that time we'll already have changed the output
4886 % section, it invokes the new output routine that we've set after
4900 % If we end up splitting too much material for the current page,
4902 % invocation ends. Having called \balancecolumns once, we do not
4912 % \pagegoal was set to the doubled \vsize above, since we restarted
4928 % Loop until we get a decent breakpoint.
4950 % \unnumberedno is an oxymoron, of course. But we count the unnumbered
4951 % sections so that we can refer to them unambiguously in the pdf
4954 % chapters, we're in trouble anyway, I'm sure.)
5025 % we only have subsub.
5029 % To achive this, remember the "biggest" unnum. sec. we are currently in:
5110 % Also set \chaplevelprefix, which we prepend to @float sequence numbers
5168 % Anyway, we don't want the fully-expanded definition of @cite to appear
5169 % as a result of the \message, we just want `@cite' itself. We use
5185 % Well, we could do the following in a group, but that would break
5187 % Thus we are safer this way: --kasal, 24feb04
5260 % to what kind of chapter we are in (ordinary, appendix, or unnumbered).
5313 % get the headings for the next chapter, which is wrong. But we don't
5314 % care -- we just disable all headings on the filler page.
5411 % Only insert the separating space if we have a chapter/appendix
5428 % \donoderef, because we include the current node name in the toc
5432 % For pdftex, we have to write out the node definition (aka, make
5544 % Go into vertical mode. Usually we'll already be there, but we
5561 % Only insert the space after the number if we have a section number.
5640 % But if #1 is `omit', then we don't do anything. This is used for the
5663 % Tell \shipout to create a pdf destination on each page, if we're
5667 % two pages of the document. Thus, we'd have two destinations named
5674 % fonts, so we must take special care. This is more or less redundant
5701 % Prepare to read what we've written to \tocfile.
5705 % start on an odd page, unlike chapters. Thus, we maintain
5852 % If the toc has to be broken over pages, we want it to be at chapters
6008 \leftskip=0pt\rightskip=0pt % we want these *outside*.
6102 % we need to do it before changing the fonts, and it's inconvenient
6200 % @quotation does normal linebreaking (hence we can't use \nonfillstart)
6202 % we're doing normal filling. So, when using \aboveenvbreak and
6231 % We have retained a nonzero parskip for the environment, since we're
6243 % If we're given an argument, typeset it in bold with a colon after.
6253 % If we want to allow any <char> as delimiter,
6254 % we need the curly braces so that makeinfo sees the @verb command, eg:
6259 % [Knuth] p.344; only we need to do the other characters Texinfo sets
6266 % Don't do the quotes -- if we do, @set txicodequoteundirected and
6356 % we need not redefine '\', '{' and '}'.
6364 % of the @verbatim input line itself. Otherwise we get an extra blank
6368 % without the active space; thus we have to use \xdef and \gobble.
6397 % beforehand -- and a) we want @copying to be done first in the source
6427 % If there are two @def commands in a row, we'll have a \nobreak,
6429 % header. But if there's nothing but headers, we need to allow a
6432 % commands also insert a nobreak penalty, and we don't want to allow
6435 % As a minor refinement, we avoid "club" headers by signalling
6452 % First, check whether we are in the right environment:
6455 % As above, allow line break if we have multiple x headers in a row.
6477 % rendering the following check redundant. But we don't optimize.
6605 % How we'll format the type name. Putting it in brackets helps
6613 % we need only space for the part of \box0 which exceeds it:
6626 % Intentionally do not respect \rightskip, since we need the space.
6634 % . we're printing identifiers, they should be in tt in principle.
6638 % . we don't want -- and --- to be treated as ligatures.
6662 % On the other hand, if an argument has two dashes (for instance), we
6680 % Be sure that we always have a definition for `(', etc. For example,
6695 % If we encounter &foo, then turn on ()-hacking afterwards
6759 % To do this right we need a feature of e-TeX, \scantokens,
6760 % which we arrange to emulate with a temporary file in ordinary TeX.
6777 % When called from @insertcopying or (short)caption, we need active
6778 % backslash to get it printed correctly. Previously, we had
6817 % (except of course we have to play expansion games).
7083 \newif\ifwarnedxrefs % True if we warned once that they aren't known.
7174 % the square brackets. Use the real section title if we have it.
7176 % It is in another manual, so we don't have it.
7180 % We know the real title if we have the xref values.
7241 % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
7245 % is a loss. Therefore, we give the text of the node name again, so it
7253 % printing. So we \turnoffactive for the \refx-snt, back on for the
7264 % But we always want a comma and a space:
7340 % just a \def (we prepend XR to the control sequence name to avoid
7341 % collisions). But if this is a float type, we have more work to do.
7354 % Was that xref control sequence that we just defined for a float?
7356 % it was a float, and we have the (safe) float type in \iffloattype.
7360 % Is this the first time we've seen this float type?
7418 % character, we would end up writing a line like this: 'xrdef {'hat
7421 % all be worked out, but why? Either we support ^^ or we don't.
7442 \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
7463 % @ is our escape character in .aux files, and we need braces.
7501 % extra spacing after we do the footnote number.
7536 % Because we use hanging indentation in footnotes, a @noindent appears
7617 % If epsf.tex is not installed and @image is used, we complain.
7619 % Check for and read epsf.tex up front. If we read it only at @image
7620 % time, we might be inside a group, and then its definitions would get
7650 % #1 is (mandatory) image filename; we tack on .eps extension.
7657 \catcode`\^^M = 5 % in case we're inside an example
7663 % Usually we'll have text after the image which will insert
7672 % it's at the top level, we don't want the normal paragraph indentation.
7690 % etc. We don't actually implement floating yet, we always include the
7708 % We keep a separate counter for each FLOATTYPE, which we reset at each
7718 % BEWARE: when the floats start float, we have to issue warning whenever an
7729 \def\floatloc{#3}% we do nothing with this yet.
7736 % but we need to use it in a control sequence name.
7743 % If label is given but no type, we handle that as the empty type.
7770 % we have these possibilities:
7783 % In all cases, if we have a float type, it comes first.
7786 % If we have an xref label, the number comes next.
7795 % Start the printed caption with what we've constructed in
7796 % \floatident, but keep it separate; we need \floatident again.
7808 % If we have anything to print, print it, with space before.
7822 % \floatlabel-lof. Besides \floatident, we include the short
7827 % since we read the caption text in the macro world, where ^^M
7828 % is turned into a normal character, we have to scan it back, so
7829 % we don't write the literal three characters "^^M" into the aux file.
7847 % BEWARE: when the floats start floating, we have to issue warning
7867 % The parameter is the control sequence identifying the counter we are
7882 % to the FLOATLABEL to expand to "Figure 3.1". We call \setref when we
7891 % #1 is the control sequence we are passed; we expand into a conditional
7893 % \lastsection value which we \setref above.
7912 % but we need to use it in a control sequence name.
7934 % xref label, in the form LABEL-title, which is how we save it in the
7936 % has the text we're supposed to typeset here.
7945 % page number, and we want to fully expand that so we can get a link
7949 % use the same \entry macro we use to generate the TOC and index.
8007 % available languages. This means we can support hyphenation in
8868 % Use TeX 3.0's \emergencystretch to help line breaking, but if we're
8911 % if we don't reset these, they will remain at "1 true in" of
9024 % Must explicitly reset to 0 because we call \afourpaper.
9039 % Perhaps we should allow setting the margins, \topskip, \parskip,
9040 % and/or leading, also. Or perhaps we should compute them somehow.
9096 % #1 is what to print if we are indeed using \tt; #2 is what to print
9099 % typewriter fonts to have this, we can check that font parameter.
9111 % Most of these we simply print from the \tt font, but for some, we can
9143 % name cannot be active until we have parsed the command line.
9202 % If a .fmt file is being used, we don't want the `\input texinfo' to show up.
9230 @c txicodequotebacktick work right in, e.g., @w{@code{`foo'}}. If we
9232 @c Do this last of all since we use ` in the previous @catcode assignments.