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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.
107 % messages, but if we're using an old version of TeX, don't do anything.
155 % Since the category of space is not known, we have to be careful.
159 % sometimes characters are active, so we need control sequences.
203 % change spans more than two lines of output. To handle that, we would
258 % we did was a \nobreak, we don't want to insert more space.
282 % We dump everything together because we only have one kind of mark.
283 % This works because we only use \botmark / \topmark, not \firstmark.
307 % page or the contents), so we use \firstmark there -- this gets us
348 % Have to do this stuff outside the \shipout because we want it to
440 % the input line (except we remove a trailing comment). #1 should be a
486 % to get _exactly_ the rest of the line, we had to prevent such situation.
487 % We prepended an \empty token at the very beginning and we expand it now,
489 % (Similarly, we have to think about #3 of \argcheckspacesY above: it is
493 % But first, we have to remove the trailing space token.
560 % Check whether we're in the right environment:
665 % latex.ltx, since we use a different font for the raised A; it's most
667 % the \scriptstyle font (since we don't reset \scriptstyle and
678 % Be sure we're in horizontal mode when doing a tie, since we make space
681 % since \penalty is valid in vertical mode, we'd end up putting the
754 % Do @comment since we are called inside an environment such as
759 % manual), we don't worry about eating any user text.
769 % and the first line afterwards, we have to propagate \prevdepth.
811 % Ensure vertical mode, so we don't make a big box in the middle of a
828 % empty box we just added fits on the page, we must make it consider
829 % page breaks. On the other hand, we don't want to actually break the
830 % page after the empty box. So we use a penalty of 9999.
838 % document, then we can reconsider our strategy.
841 % Back up by the size of the box, whether we did a page break or not.
927 \makevalueexpandable % we want to expand any @value in FILE.
1047 % By default, we suppress indentation.
1064 % Here is how we actually suppress indentation. Redefine \everypar to
1109 % Another complication: we want \\ (and @\) to output a \ character.
1111 % this is not advertised and we don't care. Texinfo does not
1200 \newif\iflinks \linkstrue % by default we want the aux files.
1204 % So open here the files we need to have open while reading the input.
1257 % can be set). So we test for \relax and 0 as well as \undefined,
1271 % for display in the outlines, and in other places. Thus, we have to
1277 % that's what we do).
1287 % To handle parens, we must adopt a different approach, since parens are
1502 % use \def rather than \let here because we redefine \chapentry et
1516 % subentries, which we calculated on our first read of the .toc above.
1529 % document fonts. Therefore we cannot use special characters,
1534 % xx to do this right, we have to translate 8-bit characters to
1536 % now, I guess we'll just let the pdf reader have its way.
1561 % it seems we really need yet another set of dummies; have not
1612 % For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
1616 \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
1631 % So we set up a \sf.
1634 \let\li = \sf % Sometimes we call it \li, not \sf.
1672 % if we are producing pdf, and we have \pdffontattr, then define cmaps.
1674 % older pdftex's; it's easy to conditionalize, so we do.)
2241 % makeinfo 4.8 does not support it, but we need it nonetheless.
2255 % we have to define the \textfont of the standard families. Since
2257 % in the main text, we don't bother to reset \scriptfont and
2347 % About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample
2350 % If we use \scriptfonts (8pt), then we can fit this many characters:
2362 % Set up the default fonts, so we can use them for creating boxes.
2394 % ttsl for book titles, do we?
2623 % So now @email is just like @uref, unless we are pdf.
2639 % Check if we are currently using a typewriter font. Since all the
2642 % this property, we can check that font parameter.
2695 % "outlined" (blackboard board, sort of) versions, which we don't need).
2698 % Although only regular is the truly official Euro symbol, we ignore
2711 % Also doesn't work in math. Do we need to do math with euro symbols?
2722 % There is only one designed size (nominal 10pt), so we always scale
2741 % use \let for the aliases, because sometimes we redefine the original
2755 % quotes to documents typeset with CM, where we lose kerning), so
2770 % be smaller yet, but lllsize is the best we can do for now.
2785 % so we'll define it if necessary.
2819 % Open one extra group, as we want to close it in the middle of \Etitlepage.
2824 % No rule at page bottom unless we print one at the top with @title.
2846 % If we use the new definition of \page, we always get a blank page
2847 % after the title page, which we certainly don't want.
3010 % When we turn headings on, set the page number to 1.
3109 % If the item text does not fit in the space we have, put it on a line
3116 % Make this a paragraph so we get the \parskip glue and wrapping,
3125 % We're going to be starting a paragraph, but we don't want the
3126 % \parskip glue -- logically it's part of the @item we just started.
3131 % \parskip glue; then the negative vskip we just inserted would
3132 % cause the example and the item to crash together. So we use this
3175 that we are \inenvironment\thisenv}%
3243 % done a \vskip-\parskip. In that case, we don't want to zero
3246 % usually is), we do want to zero parskip, or there would be too much
3247 % space. In that case, we won't have a \nobreak before. At least
3267 % If we were given no argument, pretend we were given `1'.
3273 % (We will always have one token, because of the test we just made.
3282 % Otherwise, we assume it's a number.
3288 \numericenumerate % a number (we hope)
3315 % Be sure we're not beyond the end of the alphabet.
3328 % Be sure we're not beyond the end of the alphabet.
3460 % we'll always have a period there to be parsed.
3471 % @headitem starts a heading row, which we typeset in bold.
3472 % Assignments have to be global since we are inside the implicit group
3478 % we encounter the problem it was intended to solve again.
3492 % contains an @itemize, we don't choke on the \item (seen as \crcr aka
3536 % we will add a \leftskip of \multitablecolspace to all columns after
3539 % If a template has been used, we will add \multitablecolspace
3542 % If the user has set preamble in terms of percent of \hsize we will
3547 % Make sure we don't inherit \rightskip from the outer environment.
3555 % we will advance \hsize by \multitablecolspace.
3558 % In either case we will make \leftskip=\multitablecolspace:
3608 % @ifnotxml always succeed. They currently do nothing; we don't
3609 % attempt to check whether the conditionals are properly nested. But we
3655 % Count number of #1's that we've seen.
3658 % Swallow text until we reach the matching `@end #1'.
3673 % line. (Otherwise, we would consider a line `@c @ifset', for
3689 % If we're here, #1 ends with ^^M\ifinfo (for example).
3718 % Since we want to separate VAR from REST-OF-LINE (which might be
3719 % empty), we can't just use \parsearg; we have to insert a space of our
3720 % own to delimit the rest of the line, and then take it out again if we
3759 % ..., but we might end up with active ones in the argument if
3760 % we're called from @code, as @code{@value{foo-bar_}}, though.
3766 % We have this subroutine so that we can handle at least some @value's
3767 % properly in indexes (we call \makevalueexpandable in \indexdummies).
3771 % it will fail (although perhaps we could fix that with sufficient work
3875 % Only do \closeout if we haven't already done it, else we'll end up
3908 % Since there are some commands we want to expand, and others we don't,
3909 % we have to laboriously prevent expansion for those that we don't.
3913 \def\@{@}% change to @@ when we switch to @ as escape char in index files.
3952 % For the aux and toc files, @ is the escape character. So we want to
3978 % For control letters, we have \definedummyletter, which omits the
4196 % Of course this is not nearly correct, but it is the best we can do for now.
4201 % Since macro invocations are followed by braces, we can just redefine them
4217 % empty if called from \doind, as we usually are (the main exception
4246 % Remember, we are within a group.
4284 % But don't do any of this if we're not in vertical mode. We
4316 % -\whatsitskip glue we're inserting is preceded by a
4328 % perhaps it was >=10000, e.g., a \nobreak. In that case, we want
4330 % signals); since we just inserted a non-discardable item, any
4340 % On the other hand, if we had a nonzero \lastskip,
4342 % (the whatsit from the \write), so we must insert a \nobreak.
4413 % Index files are almost Texinfo source, but we use \ as the escape
4434 % Remove any glue we may have, we'll be inserting our own.
4446 % we need before each entry, but it's better.
4488 % lines. So we use a small indentation and put up with long leaders.
4490 % \hangafter is reset to 1 (which is the value we want) at the start
4491 % of each paragraph, so we need not do anything with that.
4523 % If we must, put the page number on a line of its own, and fill out
4564 % Define two-column mode, which we use to typeset indexes.
4576 % Here is a possibility not foreseen in manmac: if we accumulate a
4577 % whole lot of material, we might end up calling this \output
4580 % that case we just ship out what is in \partialpage with the normal
4600 % format, but then we repeat the same computation. Repeating a couple
4602 % execution time, so we may as well do it in one place.
4604 % First we halve the line length, less a little for the gutter between
4608 % as it did when we hard-coded it.
4610 % We put the result in a separate register, \doublecolumhsize, so we
4644 % followed by the two boxes we just split, in box0 and box2.
4656 % _before_ we change the output routine. This is necessary in the
4665 % below, and by that time we'll already have changed the output
4674 % section, it invokes the new output routine that we've set after
4688 % If we end up splitting too much material for the current page,
4690 % invocation ends. Having called \balancecolumns once, we do not
4700 % \pagegoal was set to the doubled \vsize above, since we restarted
4716 % Loop until we get a decent breakpoint.
4738 % \unnumberedno is an oxymoron, of course. But we count the unnumbered
4739 % sections so that we can refer to them unambiguously in the pdf
4742 % chapters, we're in trouble anyway, I'm sure.)
4813 % we only have subsub.
4817 % To achive this, remember the "biggest" unnum. sec. we are currently in:
4898 % Also set \chaplevelprefix, which we prepend to @float sequence numbers
4956 % Anyway, we don't want the fully-expanded definition of @cite to appear
4957 % as a result of the \message, we just want `@cite' itself. We use
4973 % Well, we could do the following in a group, but that would break
4975 % Thus we are safer this way: --kasal, 24feb04
5048 % to what kind of chapter we are in (ordinary, appendix, or unnumbered).
5102 % get the headings for the next chapter, which is wrong. But we don't
5103 % care -- we just disable all headings on the filler page.
5200 % Only insert the separating space if we have a chapter/appendix
5217 % \donoderef, because we include the current node name in the toc
5221 % For pdftex, we have to write out the node definition (aka, make
5345 % Only insert the space after the number if we have a section number.
5424 % But if #1 is `omit', then we don't do anything. This is used for the
5447 % Tell \shipout to create a pdf destination on each page, if we're
5451 % two pages of the document. Thus, we'd have two destinations named
5458 % fonts, so we must take special care. This is more or less redundant
5485 % Prepare to read what we've written to \tocfile.
5489 % start on an odd page, unlike chapters. Thus, we maintain
5636 % If the toc has to be broken over pages, we want it to be at chapters
5824 \leftskip=0pt\rightskip=0pt % we want these *outside*.
5894 % we need to do it before changing the fonts, and it's inconvenient
5968 % @quotation does normal linebreaking (hence we can't use \nonfillstart)
5970 % we're doing normal filling. So, when using \aboveenvbreak and
5988 % We have retained a nonzero parskip for the environment, since we're
6000 % If we're given an argument, typeset it in bold with a colon after.
6010 % If we want to allow any <char> as delimiter,
6011 % we need the curly braces so that makeinfo sees the @verb command, eg:
6016 % [Knuth] p.344; only we need to do the other characters Texinfo sets
6150 % we need not redefine '\', '{' and '}'.
6158 % of the @verbatim input line itself. Otherwise we get an extra blank
6162 % without the active space; thus we have to use \xdef and \gobble.
6190 % beforehand -- and a) we want @copying to be done first in the source
6220 % If there are two @def commands in a row, we'll have a \nobreak,
6222 % header. But if there's nothing but headers, we need to allow a
6225 % commands also insert a nobreak penalty, and we don't want to allow
6228 % As a minor refinement, we avoid "club" headers by signalling
6245 % First, check whether we are in the right environment:
6248 % As above, allow line break if we have multiple x headers in a row.
6270 % rendering the following check redundant. But we don't optimize.
6398 % How we'll format the type name. Putting it in brackets helps
6406 % we need only space for the part of \box0 which exceeds it:
6419 % Intentionally do not respect \rightskip, since we need the space.
6427 % . we're printing identifiers, they should be in tt in principle.
6431 % . we don't want -- and --- to be treated as ligatures.
6455 % On the other hand, if an argument has two dashes (for instance), we
6473 % Be sure that we always have a definition for `(', etc. For example,
6488 % If we encounter &foo, then turn on ()-hacking afterwards
6552 % To do this right we need a feature of e-TeX, \scantokens,
6553 % which we arrange to emulate with a temporary file in ordinary TeX.
6570 % When called from @insertcopying or (short)caption, we need active
6571 % backslash to get it printed correctly. Previously, we had
6610 % (except of course we have to play expansion games).
6876 \newif\ifwarnedxrefs % True if we warned once that they aren't known.
6967 % the square brackets. Use the real section title if we have it.
6969 % It is in another manual, so we don't have it.
6973 % We know the real title if we have the xref values.
7034 % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
7038 % is a loss. Therefore, we give the text of the node name again, so it
7046 % printing. So we \turnoffactive for the \refx-snt, back on for the
7057 % But we always want a comma and a space:
7133 % just a \def (we prepend XR to the control sequence name to avoid
7134 % collisions). But if this is a float type, we have more work to do.
7147 % Was that xref control sequence that we just defined for a float?
7149 % it was a float, and we have the (safe) float type in \iffloattype.
7153 % Is this the first time we've seen this float type?
7211 % character, we would end up writing a line like this: 'xrdef {'hat
7214 % all be worked out, but why? Either we support ^^ or we don't.
7235 \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
7256 % @ is our escape character in .aux files, and we need braces.
7294 % extra spacing after we do the footnote number.
7329 % Because we use hanging indentation in footnotes, a @noindent appears
7410 % If epsf.tex is not installed and @image is used, we complain.
7412 % Check for and read epsf.tex up front. If we read it only at @image
7413 % time, we might be inside a group, and then its definitions would get
7443 % #1 is (mandatory) image filename; we tack on .eps extension.
7450 \catcode`\^^M = 5 % in case we're inside an example
7456 % Usually we'll have text after the image which will insert
7465 % it's at the top level, we don't want the normal paragraph indentation.
7483 % etc. We don't actually implement floating yet, we always include the
7501 % We keep a separate counter for each FLOATTYPE, which we reset at each
7511 % BEWARE: when the floats start float, we have to issue warning whenever an
7522 \def\floatloc{#3}% we do nothing with this yet.
7529 % but we need to use it in a control sequence name.
7536 % If label is given but no type, we handle that as the empty type.
7563 % we have these possibilities:
7576 % In all cases, if we have a float type, it comes first.
7579 % If we have an xref label, the number comes next.
7588 % Start the printed caption with what we've constructed in
7589 % \floatident, but keep it separate; we need \floatident again.
7601 % If we have anything to print, print it, with space before.
7615 % \floatlabel-lof. Besides \floatident, we include the short
7620 % since we read the caption text in the macro world, where ^^M
7621 % is turned into a normal character, we have to scan it back, so
7622 % we don't write the literal three characters "^^M" into the aux file.
7640 % BEWARE: when the floats start floating, we have to issue warning
7660 % The parameter is the control sequence identifying the counter we are
7675 % to the FLOATLABEL to expand to "Figure 3.1". We call \setref when we
7684 % #1 is the control sequence we are passed; we expand into a conditional
7686 % \lastsection value which we \setref above.
7705 % but we need to use it in a control sequence name.
7727 % xref label, in the form LABEL-title, which is how we save it in the
7729 % has the text we're supposed to typeset here.
7738 % page number, and we want to fully expand that so we can get a link
7742 % use the same \entry macro we use to generate the TOC and index.
7753 % abbreviation. It would be nice if we could set up a hyphenation file.
8628 % Use TeX 3.0's \emergencystretch to help line breaking, but if we're
8671 % if we don't reset these, they will remain at "1 true in" of
8784 % Must explicitly reset to 0 because we call \afourpaper.
8799 % Perhaps we should allow setting the margins, \topskip, \parskip,
8800 % and/or leading, also. Or perhaps we should compute them somehow.
8853 % #1 is what to print if we are indeed using \tt; #2 is what to print
8856 % typewriter fonts to have this, we can check that font parameter.
8868 % Most of these we simply print from the \tt font, but for some, we can
8900 % name cannot be active until we have parsed the command line.
8957 % If a .fmt file is being used, we don't want the `\input texinfo' to show up.