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-rw-r--r--texinfo.tex117
1 files changed, 79 insertions, 38 deletions
diff --git a/texinfo.tex b/texinfo.tex
index 2597157..7584c61 100644
--- a/texinfo.tex
+++ b/texinfo.tex
@@ -27,7 +27,7 @@
% reports; you can get the latest version from:
% /home/gd/gnu/doc/texinfo.tex on the GNU machines.
% ftp://ftp.gnu.org/pub/gnu/texinfo.tex
-% (and all GNU mirrors)
+% (and all GNU mirrors, see ftp://ftp.gnu.org/pub/gnu/README.mirrors)
% ftp://tug.org/tex/texinfo.tex
% ftp://ctan.org/macros/texinfo/texinfo.tex
% (and all CTAN mirrors, finger ctan@tug.org for a list).
@@ -965,13 +965,24 @@ where each line of input produces a line of output.}
\def\value{\begingroup
\catcode`\-=12 \catcode`\_=12 % Allow - and _ in VAR.
\valuexxx}
-\def\valuexxx#1{%
+\def\valuexxx#1{\expandablevalue{#1}\endgroup}
+
+% We have this subroutine so that we can handle at least some @value's
+% properly in indexes (we \let\value to this in \indexdummies). Ones
+% whose names contain - or _ still won't work, but we can't do anything
+% about that. The command has to be fully expandable, since the result
+% winds up in the index file. This means that if the variable's value
+% contains other Texinfo commands, it's almost certain it will fail
+% (although perhaps we could fix that with sufficient work to do a
+% one-level expansion on the result, instead of complete).
+%
+\def\expandablevalue#1{%
\expandafter\ifx\csname SET#1\endcsname\relax
- {\{No value for ``#1''\}}%
+ {[No value for ``#1'']v}%
\else
\csname SET#1\endcsname
\fi
-\endgroup}
+}
% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
% with @set.
@@ -1898,7 +1909,7 @@ July\or August\or September\or October\or November\or December\fi
\def\itemize{\parsearg\itemizezzz}
\def\itemizezzz #1{%
- \begingroup % ended by the @end itemsize
+ \begingroup % ended by the @end itemize
\itemizey {#1}{\Eitemize}
}
@@ -2369,7 +2380,6 @@ width0pt\relax} \fi
\def\gtr{\realbackslash gtr}%
\def\less{\realbackslash less}%
\def\hat{\realbackslash hat}%
-%\def\char{\realbackslash char}%
\def\TeX{\realbackslash TeX}%
\def\dots{\realbackslash dots }%
\def\result{\realbackslash result}%
@@ -2396,7 +2406,12 @@ width0pt\relax} \fi
\def\kbd##1{\realbackslash kbd {##1}}%
\def\dfn##1{\realbackslash dfn {##1}}%
\def\emph##1{\realbackslash emph {##1}}%
-\def\value##1{\realbackslash value {##1}}%
+%
+% Handle some cases of @value -- where the variable name does not
+% contain - or _, and the value does not contain any
+% (non-fully-expandable) commands.
+\let\value = \expandablevalue
+%
\unsepspaces
}
@@ -2469,14 +2484,24 @@ width0pt\relax} \fi
% so we do not become unable to do a definition.
{\catcode`\@=0 \catcode`\\=\other
-@gdef@realbackslash{\}}
+ @gdef@realbackslash{\}}
\let\indexbackslash=0 %overridden during \printindex.
+\let\SETmarginindex=\relax % put index entries in margin (undocumented)?
+
+% For \ifx comparisons.
+\def\emptymacro{\empty}
-\let\SETmarginindex=\relax %initialize!
-% workhorse for all \fooindexes
-% #1 is name of index, #2 is stuff to put there
-\def\doind #1#2{%
+% Most index entries go through here, but \dosubind is the general case.
+%
+\def\doind#1#2{\dosubind{#1}{#2}\empty}
+
+% Workhorse for all \fooindexes.
+% #1 is name of index, #2 is stuff to put there, #3 is subentry --
+% \empty if called from \doind, as we usually are. The main exception
+% is with defuns, which call us directly.
+%
+\def\dosubind#1#2#3{%
% Put the index entry in the margin if desired.
\ifx\SETmarginindex\relax\else
\insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}%
@@ -2487,13 +2512,22 @@ width0pt\relax} \fi
\indexdummies % Must do this here, since \bf, etc expand at this stage
\escapechar=`\\
{%
- \let\folio=0% We will expand all macros now EXCEPT \folio.
+ \let\folio = 0% We will expand all macros now EXCEPT \folio.
\def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
% so it will be output as is; and it will print as backslash.
%
+ \def\thirdarg{#3}%
+ %
+ % If third arg is present, precede it with space in sort key.
+ \ifx\thirdarg\emptymacro
+ \let\subentry = \empty
+ \else
+ \def\subentry{ #3}%
+ \fi
+ %
% First process the index-string with all font commands turned off
% to get the string to sort by.
- {\indexnofonts \xdef\indexsorttmp{#2}}%
+ {\indexnofonts \xdef\indexsorttmp{#2\subentry}}%
%
% Now produce the complete index entry, with both the sort key and the
% original text, including any font commands.
@@ -2502,33 +2536,33 @@ width0pt\relax} \fi
\write\csname#1indfile\endcsname{%
\realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}%
}%
+ %
+ % If third (subentry) arg is present, add it to the index string.
+ \ifx\thirdarg\emptymacro \else
+ \toks0 = {#3}%
+ \edef\temp{\temp{\the\toks0}}%
+ \fi
+ %
+ % If a skip is the last thing on the list now, preserve it
+ % by backing up by \lastskip, doing the \write, then inserting
+ % the skip again. Otherwise, the whatsit generated by the
+ % \write will make \lastskip zero. The result is that sequences
+ % like this:
+ % @end defun
+ % @tindex whatever
+ % @defun ...
+ % will have extra space inserted, because the \medbreak in the
+ % start of the @defun won't see the skip inserted by the @end of
+ % the previous defun.
+ \skip0 = \lastskip \ifdim\lastskip = 0pt \else \vskip-\lastskip \fi
\temp
+ \ifdim\skip0 = 0pt \else \vskip\skip0 \fi
}%
}%
\penalty\count255
}%
}
-\def\dosubind #1#2#3{%
-{\count10=\lastpenalty %
-{\indexdummies % Must do this here, since \bf, etc expand at this stage
-\escapechar=`\\%
-{\let\folio=0%
-\def\rawbackslashxx{\indexbackslash}%
-%
-% Now process the index-string once, with all font commands turned off,
-% to get the string to sort the index by.
-{\indexnofonts
-\xdef\temp1{#2 #3}%
-}%
-% Now produce the complete index entry. We process the index-string again,
-% this time with font commands expanded, to get what to print in the index.
-\edef\temp{%
-\write \csname#1indfile\endcsname{%
-\realbackslash entry {\temp1}{\folio}{#2}{#3}}}%
-\temp }%
-}\penalty\count10}}
-
% The index entry written in the file actually looks like
% \entry {sortstring}{page}{topic}
% or
@@ -3944,13 +3978,18 @@ width0pt\relax} \fi
\begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
% @deftypemethod has an extra argument that nothing else does. Sigh.
+% #1 is the \E... control sequence to end the definition (which we define).
+% #2 is the \...x control sequence for consecutive fns (which we define).
+% #3 is the control sequence to call to resume processing.
+% #4, delimited by the space, is the class name.
+% #5 is the method's return type.
%
\def\deftypemethparsebody#1#2#3#4 #5 {\begingroup\inENV %
\medbreak %
% Define the end token that this defining construct specifies
% so that it will exit this group.
\def#1{\endgraf\endgroup\medbreak}%
-\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}%
+\def#2##1 ##2 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}{##2}}}%
\parindent=0in
\advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
\exdentamount=\defbodyindent
@@ -4173,7 +4212,7 @@ width0pt\relax} \fi
\def\defspecx #1 {\errmessage{@defspecx in invalid context}}
\def\deftypefnx #1 {\errmessage{@deftypefnx in invalid context}}
\def\deftypemethodx #1 {\errmessage{@deftypemethodx in invalid context}}
-\def\deftypeunx #1 {\errmessage{@deftypeunx in invalid context}}
+\def\deftypefunx #1 {\errmessage{@deftypefunx in invalid context}}
% @defmethod, and so on
@@ -4329,7 +4368,7 @@ width0pt\relax} \fi
\def\deftpx #1 {\errmessage{@deftpx in invalid context}}
-\message{cross reference,}
+\message{cross references,}
\newwrite\auxfile
\newif\ifhavexrefs % True if xref values are known.
@@ -4724,7 +4763,9 @@ width0pt\relax} \fi
\openin 1 = epsf.tex
\ifeof 1 \else
\closein 1
- \def\epsfannounce{\toks0 = }% do not bother showing banner
+ % Do not bother showing banner with post-v2.7 epsf.tex (available in
+ % doc/epsf.tex until it shows up on ctan).
+ \def\epsfannounce{\toks0 = }%
\input epsf.tex
\fi
%