From adb1632033d58f3570bacaf6d717e8b04199c979 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@gnu.org>
Date: Tue, 13 Jul 1999 04:50:09 +0000
Subject: Sync to ftp.gnu.org version of 1999-07-06.

---
 texinfo.tex | 275 ++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 241 insertions(+), 34 deletions(-)

diff --git a/texinfo.tex b/texinfo.tex
index 3e5019e..49e20b8 100644
--- a/texinfo.tex
+++ b/texinfo.tex
@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{1999-03-31.13}%
+\def\texinfoversion{1999-07-06.19}%
 %
 % Copyright (C) 1985, 86, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
 % Free Software Foundation, Inc.
@@ -67,7 +67,6 @@
   \catcode`+=\active \catcode`\_=\active}
 
 % Save some parts of plain tex whose names we will redefine.
-
 \let\ptexb=\b
 \let\ptexbullet=\bullet
 \let\ptexc=\c
@@ -87,6 +86,13 @@
 % For @tex, we can use \tabalign.
 \let\+ = \relax
 
+% Get ready for pdf.
+\newif\ifpdf
+\ifx\pdfoutput\undefined\else
+  \input pdfcolor
+  \pdfoutput=1
+  \pdftrue
+\fi
 
 \message{Basics,}
 \chardef\other=12
@@ -245,6 +251,8 @@
         \unvbox\footlinebox
       \fi
       %
+      \ifpdf\pdfmkdest{\the\pageno}\fi
+      %
       \ifcropmarks
           \egroup % end of \vbox\bgroup
         \hfil\egroup % end of (centering) \line\bgroup
@@ -842,6 +850,119 @@ where each line of input produces a line of output.}
 \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
 
 
+\message{pdf,}
+% adobe `portable' document format
+
+\newcount\tempnum
+\newcount\lnkcount
+\newtoks\filename
+\newcount\filenamelength
+\newcount\pgn
+
+\ifpdf
+\def\pdfmkdest#1{\pdfdest name{#1@} xyz}
+\def\pdfmkpgn#1{#1@}
+
+% Adding outlines to PDF; macros for calculating structure of outlines
+% come from Petr Olsak
+\def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
+  \else \csname#1\endcsname \fi}
+\def\advancenumber#1{\tempnum=\expnumber{#1}\relax
+  \advance\tempnum by1
+  \expandafter\xdef\csname#1\endcsname{\the\tempnum}}
+\def\pdfmakeoutlines{{%
+  \openin 1 \jobname.toc
+  \ifeof 1\else\bgroup
+    \closein 1 
+    \indexnofonts
+    \def\char{char}% because \expnumber uses the section title in a \csname
+    \def\chapentry ##1##2##3{}
+    \def\unnumbchapentry ##1##2{}
+    \def\secentry ##1##2##3##4{\advancenumber{chap##2}}
+    \def\unnumbsecentry ##1##2{}
+    \def\subsecentry ##1##2##3##4##5{\advancenumber{sec##2.##3}}
+    \def\unnumbsubsecentry ##1##2{}
+    \def\subsubsecentry ##1##2##3##4##5##6{\advancenumber{subsec##2.##3.##4}}
+    \def\unnumbsubsubsecentry ##1##2{}
+    \input \jobname.toc
+    \def\chapentry ##1##2##3{%
+      \pdfoutline goto name{\pdfmkpgn{##3}}count-\expnumber{chap##2}{##1}}
+    \def\unnumbchapentry ##1##2{%
+      \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+    \def\secentry ##1##2##3##4{%
+      \pdfoutline goto name{\pdfmkpgn{##4}}count-\expnumber{sec##2.##3}{##1}}
+    \def\unnumbsecentry ##1##2{%
+      \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+    \def\subsecentry ##1##2##3##4##5{%
+      \pdfoutline goto name{\pdfmkpgn{##5}}count-\expnumber{subsec##2.##3.##4}{##1}}
+    \def\unnumbsubsecentry ##1##2{%
+      \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+    \def\subsubsecentry ##1##2##3##4##5##6{%
+      \pdfoutline goto name{\pdfmkpgn{##6}}{##1}}
+    \def\unnumbsubsubsecentry ##1##2{%
+      \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+    \input \jobname.toc
+  \egroup\fi
+}}
+
+\def\makelinks #1,{%
+  \def\params{#1}\def\E{END}%
+  \ifx\params\E
+    \let\nextmakelinks=\relax
+  \else
+    \let\nextmakelinks=\makelinks
+    \ifnum\lnkcount>0,\fi
+    \picknum{#1}%
+    \Blue\pdfannotlink attr{/Border [0 0 0]} 
+      goto name{\pdfmkpgn{\the\pgn}}%
+    #1%
+    \advance\lnkcount by 1%
+    \Black\pdfendlink
+  \fi
+  \nextmakelinks
+}
+
+\def\picknum#1{\expandafter\pn#1}
+\def\pn#1{%
+  \def\p{#1}%
+  \ifx\p\lbrace
+    \let\nextpn=\ppn
+  \else
+    \let\nextpn=\ppnn
+    \def\first{#1}
+  \fi
+  \nextpn
+}
+\def\ppn#1{\pgn=#1\gobble}
+\def\ppnn{\pgn=\first}
+\def\pdfmklnk#1{\lnkcount=0\makelinks #1,END,}
+
+\def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
+\def\skipspaces#1{\def\PP{#1}\def\D{|}%
+  \ifx\PP\D\let\nextsp\relax
+  \else\let\nextsp\skipspaces
+    \ifx\p\space\else\addtokens{\filename}{\PP}%
+      \advance\filenamelength by 1
+    \fi
+  \fi
+  \nextsp}
+\def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
+
+\def\pdflink#1{%
+  \leavevmode\Red
+  \begingroup
+    \normalturnoffactive\def\@{@}%
+    \pdfannotlink
+      attr{/Border [0 0 0]}%
+      user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
+  \endgroup
+}
+
+\else
+  \let\pdflink = \gobble
+  \let\pdfmakeoutlines = \relax
+\fi % end \ifpdf
+
 \message{fonts,}
 % Font-change commands.
 
@@ -1208,23 +1329,43 @@ where each line of input produces a line of output.}
 %
 \def\uref#1{\douref #1,,,\finish}
 \def\douref#1,#2,#3,#4\finish{%
+  \pdflink{#1}%
   \setbox0 = \hbox{\ignorespaces #3}%
   \ifdim\wd0 > 0pt
     \unhbox0 % third arg given, show only that
   \else
     \setbox0 = \hbox{\ignorespaces #2}%
     \ifdim\wd0 > 0pt
-      \unhbox0\ (\code{#1})% second arg given, show both it and url
+      \ifpdf
+        \unhbox0             % PDF: 2nd arg given, show only it
+      \else
+        \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
+      \fi
     \else
       \code{#1}% only url given, so show it
     \fi
   \fi
+  %
+  \ifpdf
+    \Black\pdfendlink
+  \fi
 }
 
-% rms does not like the angle brackets --karl, 17may97.
-% So now @email is just like @uref.
+% rms does not like angle brackets --karl, 17may97.
+% So now @email is just like @uref, unless we are pdf.
+% 
 %\def\email#1{\angleleft{\tt #1}\angleright}
-\let\email=\uref
+\ifpdf
+  \def\email#1{\doemail#1,,\finish}
+  \def\doemail#1,#2,#3\finish{%
+    \pdflink{mailto:#1}%
+    \setbox0 = \hbox{\ignorespaces #2}%
+    \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
+    \Black\pdfendlink
+  }
+\else
+  \let\email=\uref
+\fi
 
 % Check if we are currently using a typewriter font.  Since all the
 % Computer Modern typewriter fonts have zero interword stretch (and
@@ -1908,10 +2049,11 @@ where each line of input produces a line of output.}
   \go
 }
 
-% multitable syntax
-\def\tab{&\hskip1sp\relax} % 2/2/96
-                           % tiny skip here makes sure this column space is
-                           % maintained, even if it is never used.
+% This used to have \hskip1sp.  But then the space in a template line is
+% not enough.  That is bad.  So let's go back to just & until we
+% encounter the problem it was intended to solve again.
+% --karl, nathan@acm.org, 20apr99.
+\def\tab{&}
 
 % @multitable ... @end multitable definitions:
 %
@@ -2063,6 +2205,7 @@ width0pt\relax} \fi
   \let\deftypefn = \relax
   \let\deftypefun = \relax
   \let\deftypeivar = \relax
+  \let\deftypeop = \relax
   \let\deftypevar = \relax
   \let\deftypevr = \relax
   \let\defun = \relax
@@ -3029,7 +3172,7 @@ width0pt\relax} \fi
 
 
 \message{sectioning,}
-% Define chapters, sections, etc.
+% Chapters, sections, etc.
 
 \newcount\chapno
 \newcount\secno        \secno=0
@@ -3037,8 +3180,12 @@ width0pt\relax} \fi
 \newcount\subsubsecno  \subsubsecno=0
 
 % This counter is funny since it counts through charcodes of letters A, B, ...
+% The \the is necessary, despite appearances, because \appendixletter is
+% expanded while writing the .toc file.  \char\appendixno is not
+% expandable, thus it is written literally, thus all appendixes come out
+% with the same letter (or @) in the toc without it.
 \newcount\appendixno  \appendixno = `\@
-\def\appendixletter{\char\appendixno}
+\def\appendixletter{\char\the\appendixno}
 
 % Each @chapter defines this as the name of the chapter.
 % page headings and footings can use it.  @section does likewise.
@@ -3511,6 +3658,7 @@ width0pt\relax} \fi
 
 
 \message{toc,}
+% Table of contents.
 \newwrite\tocfile
 
 % Write an entry to the toc file, opening it if necessary.
@@ -3571,6 +3719,7 @@ width0pt\relax} \fi
      \fi
      \vfill \eject
      \contentsalignmacro % in case @setchapternewpage odd is in effect
+     \pdfmakeoutlines
    \endgroup
    \lastnegativepageno = \pageno
    \pageno = \savepageno
@@ -3607,6 +3756,10 @@ width0pt\relax} \fi
 }
 \let\shortcontents = \summarycontents
 
+\ifpdf
+  \pdfcatalog{/PageMode /UseOutlines}%
+\fi
+
 % These macros generate individual entries in the table of contents.
 % The first argument is the chapter or section name.
 % The last argument is the page number.
@@ -3715,6 +3868,7 @@ width0pt\relax} \fi
 
 
 \message{environments,}
+% @foo ... @end foo.
 
 % Since these characters are used in examples, it should be an even number of
 % \tt widths. Each \tt character is 1en, so two makes it 1em.
@@ -4038,8 +4192,9 @@ width0pt\relax} \fi
 
 
 \message{defuns,}
-% Define formatter for defuns
-% First, allow user to change definition object font (\df) internally
+% @defun etc.
+
+% Allow user to change definition object font (\df) internally
 \def\setdeffont #1 {\csname DEF#1\endcsname}
 
 \newskip\defbodyindent \defbodyindent=.4in
@@ -4166,23 +4321,39 @@ width0pt\relax} \fi
 \exdentamount=\defbodyindent
 \begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
 
-% @deftypemethod has an extra argument that nothing else does.  Sigh.
+% Used for @deftypemethod and @deftypeivar.
 % #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.
+% #4, delimited by a 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 ##2 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}{##2}}}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup\obeylines\activeparens\spacesplit{#3{#4}{#5}}}
+\def\deftypemethparsebody#1#2#3#4 #5 {\begingroup\inENV
+  \medbreak
+  \def#1{\endgraf\endgroup\medbreak}%
+  \def#2##1 ##2 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}{##2}}}%
+  \parindent=0in
+  \advance\leftskip by \defbodyindent
+  \exdentamount=\defbodyindent
+  \begingroup\obeylines\activeparens\spacesplit{#3{#4}{#5}}}
+
+% Used for @deftypeop.  The change from \deftypemethparsebody is an
+% extra argument at the beginning which is the `category', instead of it
+% being the hardwired string `Method' or `Instance Variable'.  We have
+% to account for this both in the \...x definition and in parsing the
+% input at hand.  Thus also need a control sequence (passed as #5) for
+% the \E... definition to assign the category name to.
+% 
+\def\deftypeopparsebody#1#2#3#4#5 #6 {\begingroup\inENV
+  \medbreak
+  \def#1{\endgraf\endgroup\medbreak}%
+  \def#2##1 ##2 ##3 {%
+    \def#4{##1}%
+    \begingroup\obeylines\activeparens\spacesplit{#3{##2}{##3}}}%
+  \parindent=0in
+  \advance\leftskip by \defbodyindent
+  \exdentamount=\defbodyindent
+  \begingroup\obeylines\activeparens\spacesplit{#3{#5}{#6}}}
 
 \def\defopparsebody #1#2#3#4#5 {\begingroup\inENV %
 \medbreak %
@@ -4293,12 +4464,13 @@ width0pt\relax} \fi
 % First, define the processing that is wanted for arguments of \defun
 % Use this to expand the args and terminate the paragraph they make up
 
-\def\defunargs #1{\functionparens \sl
+\def\defunargs#1{\functionparens \sl
 % Expand, preventing hyphenation at `-' chars.
 % Note that groups don't affect changes in \hyphenchar.
-\hyphenchar\tensl=0
+% Set the font temporarily and use \font in case \setfont made \tensl a macro.
+{\tensl\hyphenchar\font=0}%
 #1%
-\hyphenchar\tensl=45
+{\tensl\hyphenchar\font=45}%
 \ifnum\parencount=0 \else \errmessage{Unbalanced parentheses in @def}\fi%
 \interlinepenalty=10000
 \advance\rightskip by 0pt plus 1fil
@@ -4397,13 +4569,29 @@ width0pt\relax} \fi
 \def\defop #1 {\def\defoptype{#1}%
 \defopparsebody\Edefop\defopx\defopheader\defoptype}
 %
-\def\defopheader #1#2#3{%
+\def\defopheader#1#2#3{%
 \dosubind {fn}{\code{#2}}{\putwordon\ #1}% Make entry in function index
 \begingroup\defname {#2}{\defoptype\ \putwordon\ #1}%
 \defunargs {#3}\endgroup %
 }
 
-% @deftypemethod CLASS RETURN-TYPE METHOD ARG...
+% @deftypeop CATEGORY CLASS TYPE OPERATION ARG...
+%
+\def\deftypeop #1 {\def\deftypeopcategory{#1}%
+  \deftypeopparsebody\Edeftypeop\deftypeopx\deftypeopheader
+                       \deftypeopcategory}
+%
+% #1 is the class name, #2 the data type, #3 the operation name, #4 the args.
+\def\deftypeopheader#1#2#3#4{%
+  \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index
+  \begingroup
+    \defname{\defheaderxcond#2\relax$$$#3}
+            {\deftypeopcategory\ \putwordon\ \code{#1}}%
+    \deftypefunargs{#4}%
+  \endgroup
+}
+
+% @deftypemethod CLASS TYPE METHOD ARG...
 %
 \def\deftypemethod{%
   \deftypemethparsebody\Edeftypemethod\deftypemethodx\deftypemethodheader}
@@ -4552,6 +4740,7 @@ width0pt\relax} \fi
 \def\deftypefunx#1 {\errmessage{@deftypefunx in invalid context}}
 \def\deftypeivarx#1 {\errmessage{@deftypeivarx in invalid context}}
 \def\deftypemethodx#1 {\errmessage{@deftypemethodx in invalid context}}
+\def\deftypeopx#1 {\errmessage{@deftypeopx in invalid context}}
 \def\deftypevarx#1 {\errmessage{@deftypevarx in invalid context}}
 \def\deftypevrx#1 {\errmessage{@deftypevrx in invalid context}}
 \def\defunx#1 {\errmessage{@defunx in invalid context}}
@@ -4843,6 +5032,8 @@ width0pt\relax} \fi
 
 
 \message{cross references,}
+% @xref etc.
+
 \newwrite\auxfile
 
 \newif\ifhavexrefs    % True if xref values are known.
@@ -4908,6 +5099,7 @@ width0pt\relax} \fi
 %
 \def\setref#1#2{{%
   \indexdummies
+  \ifpdf \pdfmkdest{#1}\fi
   \dosetq{#1-title}{Ytitle}%
   \dosetq{#1-pg}{Ypagenumber}%
   \dosetq{#1-snt}{#2}%
@@ -4955,6 +5147,19 @@ width0pt\relax} \fi
   % are best written with fairly long node names, containing hyphens, this
   % is a loss.  Therefore, we give the text of the node name again, so it
   % is as if TeX is seeing it for the first time.
+  \ifpdf
+    \leavevmode
+    \getfilename{#4}%
+    \ifnum\filenamelength>0
+      \pdfannotlink attr{/Border [0 0 0]}%
+        goto file{\the\filename.pdf} name{#1@}%
+    \else
+      \pdfannotlink attr{/Border [0 0 0]}%
+        goto name{#1@}%
+    \fi
+    \BlueGreen
+  \fi
+  %
   \ifdim \wd1 > 0pt
     \putwordsection{} ``\printednodename'' \putwordin{} \cite{\printedmanual}%
   \else
@@ -4974,6 +5179,7 @@ width0pt\relax} \fi
     % page 3
     \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
   \fi
+  \ifpdf \Black\pdfendlink \fi
 \endgroup}
 
 % \dosetq is the interface for calls from other macros
@@ -5347,6 +5553,7 @@ width0pt\relax} \fi
 
 
 \message{localization,}
+% and i18n.
 
 % @documentlanguage is usually given very early, just after
 % @setfilename.  If done too late, it may not override everything
@@ -5406,8 +5613,7 @@ should work if nowhere else does.}
     % Allow us to assign to \emergencystretch anyway.
     \def\emergencystretch{\dimen0}%
   \else
-    \emergencystretch = \hsize
-    \divide\emergencystretch by 40
+    \emergencystretch = .15\hsize
   \fi
 }
 
@@ -5517,6 +5723,7 @@ should work if nowhere else does.}
 %
 \letterpaper
 
+
 \message{and turning on texinfo input format.}
 
 % Define macros to output various characters with catcode for normal text.
@@ -5684,6 +5891,6 @@ should work if nowhere else does.}
 @c eval: (add-hook 'write-file-hooks 'time-stamp)
 @c page-delimiter: "^\\\\message"
 @c time-stamp-start: "def\\\\texinfoversion{"
-@c time-stamp-format: "%:y-%02m-%02d.%H"
+@c time-stamp-format: "%:y-%02m-%02d.%02H"
 @c time-stamp-end: "}"
 @c End:
-- 
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