diff options
Diffstat (limited to 'Build/source/build-aux/texinfo.tex')
-rw-r--r-- | Build/source/build-aux/texinfo.tex | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/Build/source/build-aux/texinfo.tex b/Build/source/build-aux/texinfo.tex index 85f184cc4cb..3427d2ad0e3 100644 --- a/Build/source/build-aux/texinfo.tex +++ b/Build/source/build-aux/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{2013-02-01.11} +\def\texinfoversion{2013-06-23.10} % % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995, % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, @@ -2475,14 +2475,14 @@ end } % We *must* turn on hyphenation at `-' and `_' in @code. +% (But see \codedashfinish below.) % Otherwise, it is too hard to avoid overfull hboxes % in the Emacs manual, the Library manual, etc. % % Unfortunately, TeX uses one parameter (\hyphenchar) to control % both hyphenation at - and hyphenation within words. % We must therefore turn them both off (\tclose does that) -% and arrange explicitly to hyphenate at a dash. -% -- rms. +% and arrange explicitly to hyphenate at a dash. -- rms. { \catcode`\-=\active \catcode`\_=\active \catcode`\'=\active \catcode`\`=\active @@ -2499,14 +2499,33 @@ end \let-\normaldash \let_\realunder \fi + % Given -foo (with a single dash), we do not want to allow a break + % after the hyphen. + \global\let\codedashprev=\codedash + % \codex } + % + \gdef\codedash{\futurelet\next\codedashfinish} + \gdef\codedashfinish{% + \normaldash % always output the dash character itself. + % + % Now, output a discretionary to allow a line break, unless + % (a) the next character is a -, or + % (b) the preceding character is a -. + % E.g., given --posix, we do not want to allow a break after either -. + % Given --foo-bar, we do want to allow a break between the - and the b. + \ifx\next\codedash \else + \ifx\codedashprev\codedash + \else \discretionary{}{}{}\fi + \fi + \global\let\codedashprev=\next + } } - +\def\normaldash{-} +% \def\codex #1{\tclose{#1}\endgroup} -\def\normaldash{-} -\def\codedash{-\discretionary{}{}{}} \def\codeunder{% % this is all so @math{@code{var_name}+1} can work. In math mode, _ % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.) @@ -4211,8 +4230,9 @@ end % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined % with @set. -% -% To get special treatment of `@end ifset,' call \makeond and the redefine. +% +% To get the special treatment we need for `@end ifset,' we call +% \makecond and then redefine. % \makecond{ifset} \def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}} @@ -6402,7 +6422,7 @@ end \newdimen\nonfillparindent \def\nonfillstart{% \aboveenvbreak - \hfuzz = 12pt % Don't be fussy + \ifdim\hfuzz < 12pt \hfuzz = 12pt \fi % Don't be fussy \sepspaces % Make spaces be word-separators rather than space tokens. \let\par = \lisppar % don't ignore blank lines \obeylines % each line of input is a line of output |