% Load plain if necessary, i.e., if running under initex.
\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
%
-\def\texinfoversion{2010-06-10.11}
+\def\texinfoversion{2010-08-17.17}
%
% Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
\def_{\ifnum\fam=\slfam \_\else\sb\fi}%
}
}
-% Another complication: we want \\ (and @\) to output a \ character.
-% FYI, plain.tex uses \\ as a temporary control sequence (why?), but
-% this is not advertised and we don't care. Texinfo does not
-% otherwise define @\.
+% Another complication: we want \\ (and @\) to output a math (or tt) \.
+% FYI, plain.tex uses \\ as a temporary control sequence (for no
+% particular reason), but this is not advertised and we don't care.
%
% The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\.
\def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
\def\commondummies{%
%
% \definedummyword defines \#1 as \string\#1\space, thus effectively
- % preventing its expansion. This is used only for control% words,
+ % preventing its expansion. This is used only for control words,
% not control letters, because the \space would be incorrect for
% control characters, but is needed to separate the control word
% from whatever follows.
\commondummiesnofonts
%
\definedummyletter\_%
+ \definedummyletter\-%
%
% Non-English letters.
\definedummyword\AA
\definedummyword\TeX
%
% Assorted special characters.
+ \definedummyword\arrow
\definedummyword\bullet
\definedummyword\comma
\definedummyword\copyright
\definedummyword\equiv
\definedummyword\error
\definedummyword\euro
+ \definedummyword\expansion
+ \definedummyword\geq
\definedummyword\guillemetleft
\definedummyword\guillemetright
\definedummyword\guilsinglleft
\definedummyword\guilsinglright
- \definedummyword\expansion
+ \definedummyword\leq
\definedummyword\minus
\definedummyword\ogonek
\definedummyword\pounds
\definedummyword\b
\definedummyword\i
\definedummyword\r
+ \definedummyword\sansserif
\definedummyword\sc
+ \definedummyword\slanted
\definedummyword\t
%
% Commands that take arguments.
\definedummyword\code
\definedummyword\command
\definedummyword\dfn
+ \definedummyword\dmn
\definedummyword\email
\definedummyword\emph
\definedummyword\env
\definedummyword\file
+ \definedummyword\indicateurl
\definedummyword\kbd
\definedummyword\key
\definedummyword\math
\def\definedummyaccent##1{\let##1\asis}%
% We can just ignore other control letters.
\def\definedummyletter##1{\let##1\empty}%
- % Hopefully, all control words can become @asis.
+ % All control words become @asis by default; overrides below.
\let\definedummyword\definedummyaccent
%
\commondummiesnofonts
%
\def\ { }%
\def\@{@}%
- % how to handle braces?
\def\_{\normalunderscore}%
+ \def\-{}% @- shouldn't affect sorting
+ %
+ % Unfortunately, texindex is not prepared to handle braces in the
+ % content at all. So for index sorting, we map @{ and @} to strings
+ % starting with |, since that ASCII character is between ASCII { and }.
+ \def\{{|a}%
+ \def\}{|b}%
%
% Non-English letters.
\def\AA{AA}%
%
% Assorted special characters.
% (The following {} will end up in the sort string, but that's ok.)
+ \def\arrow{->}%
\def\bullet{bullet}%
\def\comma{,}%
\def\copyright{copyright}%
\def\error{error}%
\def\euro{euro}%
\def\expansion{==>}%
+ \def\geq{>=}%
\def\guillemetleft{<<}%
\def\guillemetright{>>}%
\def\guilsinglleft{<}%
\def\guilsinglright{>}%
+ \def\leq{<=}%
\def\minus{-}%
\def\point{.}%
\def\pounds{pounds}%
% Setup for the @verbatim environment
%
-% Real tab expansion
+% Real tab expansion.
\newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount
%
-\def\starttabbox{\setbox0=\hbox\bgroup}
+% We typeset each line of the verbatim in an \hbox, so we can handle
+% tabs. The \global is in case the verbatim line starts with an accent,
+% or some other command that starts with a begin-group. Otherwise, the
+% entire \verbbox would disappear at the corresponding end-group, before
+% it is typeset. Meanwhile, we can't have nested verbatim commands
+% (can we?), so the \global won't be overwriting itself.
+\newbox\verbbox
+\def\starttabbox{\global\setbox\verbbox=\hbox\bgroup}
%
\begingroup
\catcode`\^^I=\active
\gdef\tabexpand{%
\catcode`\^^I=\active
\def^^I{\leavevmode\egroup
- \dimen0=\wd0 % the width so far, or since the previous tab
- \divide\dimen0 by\tabw
- \multiply\dimen0 by\tabw % compute previous multiple of \tabw
- \advance\dimen0 by\tabw % advance to next multiple of \tabw
- \wd0=\dimen0 \box0 \starttabbox
+ \dimen\verbbox=\wd\verbbox % the width so far, or since the previous tab
+ \divide\dimen\verbbox by\tabw
+ \multiply\dimen\verbbox by\tabw % compute previous multiple of \tabw
+ \advance\dimen\verbbox by\tabw % advance to next multiple of \tabw
+ \wd\verbbox=\dimen\verbbox \box\verbbox \starttabbox
}%
}
\endgroup
\def\setupverbatim{%
\let\nonarrowing = t%
\nonfillstart
- % Easiest (and conventionally used) font for verbatim
- \tt
- \def\par{\leavevmode\egroup\box0\endgraf}%
+ \tt % easiest (and conventionally used) font for verbatim
+ % The \leavevmode here is for blank lines. Otherwise, we would
+ % never \starttabox and the \egroup would end verbatim mode.
+ \def\par{\leavevmode\egroup\box\verbbox\endgraf}%
\tabexpand
\setupmarkupstyle{verbatim}%
% Respect line breaks,
% print special symbols as themselves, and
- % make each space count
- % must do in this order:
+ % make each space count.
+ % Must do in this order:
\obeylines \uncatcodespecials \sepspaces
\everypar{\starttabbox}%
}
% Macro bodies are absorbed as an argument in a context where
% all characters are catcode 10, 11 or 12, except \ which is active
-% (as in normal texinfo). It is necessary to change the definition of \.
-
+% (as in normal texinfo). It is necessary to change the definition of \
+% to recognize macro arguments; this is the job of \mbodybackslash.
+%
% Non-ASCII encodings make 8-bit characters active, so un-activate
% them to avoid their expansion. Must do this non-globally, to
% confine the change to the current group.
-
+%
% It's necessary to have hard CRs when the macro is executed. This is
-% done by making ^^M (\endlinechar) catcode 12 when reading the macro
+% done by making ^^M (\endlinechar) catcode 12 when reading the macro
% body, and then making it the \newlinechar in \scanmacro.
-
-\def\scanctxt{%
+%
+\def\scanctxt{% used as subroutine
\catcode`\"=\other
\catcode`\+=\other
\catcode`\<=\other
\ifx\declaredencoding\ascii \else \setnonasciicharscatcodenonglobal\other \fi
}
-\def\scanargctxt{%
+\def\scanargctxt{% used for copying and captions, not macros.
\scanctxt
\catcode`\\=\other
\catcode`\^^M=\other
}
-\def\macrobodyctxt{%
+\def\macrobodyctxt{% used for @macro definitions
\scanctxt
\catcode`\{=\other
\catcode`\}=\other
\usembodybackslash
}
-\def\macroargctxt{%
+\def\macroargctxt{% used when scanning invocations
\scanctxt
- \catcode`\\=\other
+ \catcode`\\=0
}
+% why catcode 0 for \ in the above? To recognize \\ \{ \} as "escapes"
+% for the single characters \ { }. Thus, we end up with the "commands"
+% that would be written @\ @{ @} in a Texinfo document.
+%
+% We already have @{ and @}. For @\, we define it here, and only for
+% this purpose, to produce a typewriter backslash (so, the @\ that we
+% define for @math can't be used with @macro calls):
+%
+\def\\{\normalbackslash}%
+%
+% We would like to do this for \, too, since that is what makeinfo does.
+% But it is not possible, because Texinfo already has a command @, for a
+% cedilla accent. Documents must use @comma{} instead.
+%
+% \anythingelse will almost certainly be an error of some kind.
+
% \mbodybackslash is the definition of \ in @macro bodies.
% It maps \foo\ => \csname macarg.foo\endcsname => #N
% where N is the macro parameter number.
% We define \csname macarg.\endcsname to be \realbackslash, so
% \\ in macro replacement text gets you a backslash.
-
+%
{\catcode`@=0 @catcode`@\=@active
@gdef@usembodybackslash{@let\=@mbodybackslash}
@gdef@mbodybackslash#1\{@csname macarg.#1@endcsname}
}
\expandafter\def\csname macarg.\endcsname{\realbackslash}
+\def\margbackslash#1{\char`\#1 }
+
\def\macro{\recursivefalse\parsearg\macroxxx}
\def\rmacro{\recursivetrue\parsearg\macroxxx}
\def\macroxxx#1{%
- \getargs{#1}% now \macname is the macname and \argl the arglist
+ \getargs{#1}% now \macname is the macname and \argl the arglist
\ifx\argl\empty % no arguments
- \paramno=0%
+ \paramno=0
\else
\expandafter\parsemargdef \argl;%
\fi
% an opening brace, and that opening brace is not consumed.
\def\getargs#1{\getargsxxx#1{}}
\def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
-\def\getmacname #1 #2\relax{\macname={#1}}
+\def\getmacname#1 #2\relax{\macname={#1}}
\def\getmacargs#1{\def\argl{#1}}
% Parse the optional {params} list. Set up \paramno and \paramlist
% so \defmacro knows what to do. Define \macarg.blah for each blah
-% in the params list, to be ##N where N is the position in that list.
+% in the params list to be ##N where N is the position in that list.
% That gets used by \mbodybackslash (above).
-
+%
% We need to get `macro parameter char #' into several definitions.
-% The technique used is stolen from LaTeX: let \hash be something
+% The technique used is stolen from LaTeX: let \hash be something
% unexpandable, insert that wherever you need a #, and then redefine
% it to # just before using the token list produced.
%
% The same technique is used to protect \eatspaces till just before
% the macro is used.
-\def\parsemargdef#1;{\paramno=0\def\paramlist{}%
- \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,}
+\def\parsemargdef#1;{%
+ \paramno=0\def\paramlist{}%
+ \let\hash\relax
+ \let\xeatspaces\relax
+ \parsemargdefxxx#1,;,%
+}
\def\parsemargdefxxx#1,{%
\if#1;\let\next=\relax
\else \let\next=\parsemargdefxxx
- \advance\paramno by 1%
+ \advance\paramno by 1
\expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
{\xeatspaces{\hash\the\paramno}}%
\edef\paramlist{\paramlist\hash\the\paramno,}%
% These two commands read recursive and nonrecursive macro bodies.
% (They're different since rec and nonrec macros end differently.)
-
+%
\long\def\parsemacbody#1@end macro%
{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
\long\def\parsermacbody#1@end rmacro%
% Much magic with \expandafter here.
% \xdef is used so that macro definitions will survive the file
% they're defined in; @include reads the file inside a group.
+%
\def\defmacro{%
\let\hash=##% convert placeholders to macro parameter chars
\ifrecursive
% \braceorline decides whether the next nonwhitespace character is a
% {. If so it reads up to the closing }, if not, it reads the whole
% line. Whatever was read is then fed to the next control sequence
-% as an argument (by \parsebrace or \parsearg)
+% as an argument (by \parsebrace or \parsearg).
+%
\def\braceorline#1{\let\macnamexxx=#1\futurelet\nchar\braceorlinexxx}
\def\braceorlinexxx{%
\ifx\nchar\bgroup\else
% @alias.
% We need some trickery to remove the optional spaces around the equal
-% sign. Just make them active and then expand them all to nothing.
+% sign. Make them active and then expand them all to nothing.
+%
\def\alias{\parseargusing\obeyspaces\aliasxxx}
\def\aliasxxx #1{\aliasyyy#1\relax}
\def\aliasyyy #1=#2\relax{%
\angleleft un\-de\-fined\angleright
\iflinks
\ifhavexrefs
- \message{\linenumber Undefined cross reference `#1'.}%
+ {\toks0 = {#1}% avoid expansion of possibly-complex value
+ \message{\linenumber Undefined cross reference `\the\toks0'.}}%
\else
\ifwarnedxrefs\else
\global\warnedxrefstrue
projects / gnulib.git / blobdiff