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-rw-r--r--Master/texmf-dist/tex/texinfo/texinfo.tex41
1 files changed, 34 insertions, 7 deletions
diff --git a/Master/texmf-dist/tex/texinfo/texinfo.tex b/Master/texmf-dist/tex/texinfo/texinfo.tex
index 0d2a1fdbc8f..c73758f99a0 100644
--- a/Master/texmf-dist/tex/texinfo/texinfo.tex
+++ b/Master/texmf-dist/tex/texinfo/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{2020-06-25.17}
+\def\texinfoversion{2020-10-15.12}
%
% Copyright 1985, 1986, 1988, 1990-2020 Free Software Foundation, Inc.
%
@@ -3038,10 +3038,18 @@ end
% arg (if given), and not the url (which is then just the link target).
\newif\ifurefurlonlylink
+% The default \pretolerance setting stops the penalty inserted in
+% \urefallowbreak being a discouragement to line breaking. Set it to
+% a negative value for this paragraph only. Hopefully this does not
+% conflict with redefinitions of \par done elsewhere.
+\def\nopretolerance{%
+\pretolerance=-1
+\def\par{\endgraf\pretolerance=100 \let\par\endgraf}%
+}
+
% The main macro is \urefbreak, which allows breaking at expected
-% places within the url. (There used to be another version, which
-% didn't support automatic breaking.)
-\def\urefbreak{\begingroup \urefcatcodes \dourefbreak}
+% places within the url.
+\def\urefbreak{\nopretolerance \begingroup \urefcatcodes \dourefbreak}
\let\uref=\urefbreak
%
\def\dourefbreak#1{\urefbreakfinish #1,,,\finish}
@@ -3152,14 +3160,14 @@ end
% Allow a ragged right output to aid breaking long URL's. There can
% be a break at the \allowbreak with no extra glue (if the existing stretch in
-% the line is sufficient), a break at the \penalty100 with extra glue added
+% the line is sufficient), a break at the \penalty with extra glue added
% at the end of the line, or no break at all here.
% Changing the value of the penalty and/or the amount of stretch affects how
% preferable one choice is over the other.
\def\urefallowbreak{%
- \allowbreak
+ \penalty0\relax
\hskip 0pt plus 2 em\relax
- \penalty300
+ \penalty1000\relax
\hskip 0pt plus -2 em\relax
}
@@ -3356,6 +3364,25 @@ end
\def\sup{\ifmmode \expandafter\ptexsp \else \expandafter\finishsup\fi}
\def\finishsup#1{$\ptexsp{\hbox{\switchtolllsize #1}}$}%
+% provide this command from LaTeX as it is very common
+\def\frac#1#2{{{#1}\over{#2}}}
+
+% @displaymath.
+% \globaldefs is needed to recognize the end lines in \tex and
+% \end tex. Set \thisenv as @end displaymath is seen before @end tex.
+{\obeylines
+\globaldefs=1
+\envdef\displaymath{%
+\tex
+\def\thisenv{\displaymath}%
+$$%
+}
+
+\def\Edisplaymath{$$
+\def\thisenv{\tex}%
+\end tex
+}}
+
% @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}.
% Ignore unless FMTNAME == tex; then it is like @iftex and @tex,
% except specified as a normal braced arg, so no newlines to worry about.