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-rw-r--r--Master/texmf-dist/tex/latex/pdfwin/truncate.sty158
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-% truncate.sty ver 3.6 20-Aug-2001 Donald Arseneau
-% This LaTeX program is released to the public domain.
-%
-% Truncate text to a specified width: \truncate [marker]{width}{text}
-%
-% If the text is too wide to fit in the specified width, then it is
-% truncated, and a continuation marker is shown at the end. The default
-% marker, used when the optional "[marker]" parameter is omitted, is
-% "\,\dots". You can change this default by redefining "\TruncateMarker"
-% ("\renewcommand{\TruncateMarker}{}").
-%
-% Normally, the text (whether truncated or not) is printed flush-left
-% in a box with exactly the width specified. The package option "[fit]"
-% ("\usepackage[fit]{truncate}") causes the output text to have its
-% natural width, up to a maximum of the specified width.
-%
-% The text will not normally be truncated in the middle of a word,
-% nor at a space specified by the tie "~". For example:
-%
-% "\truncate{122pt}{This text has been~truncated}"
-% gives
-% "This text has... "
-%
-% You can give one of the package options "[hyphenate]", "[breakwords]",
-% or "[breakall]" to allow breaking in the middle of words. The first
-% two only truncate at hyphenation points; with the difference being that
-% "breakwords" suppresses the hyphen character. On the other hand,
-% "breakall" allows truncation at any character. For example:
-%
-% "\truncate{122pt}{This text has been~truncated}"
-% gives
-% "This text has been trun-..." (hyphenate)
-% "This text has been trun... " (breakwords)
-% "This text has been trunc..." (breakall)
-%
-% (All of these options work through TeX's hyphenation mechanism.)
-%
-\ProvidesPackage{truncate}[2001/08/20 \space ver 3.6]
-%
-% [breakwords] allows hyphenation but with invisible hyphen characters
-\DeclareOption{breakwords}{%
- \let\@Trunc@DoSelect\relax
- \expandafter\chardef\csname \string\@TruncHyph T1\endcsname 23
- \expandafter\chardef\csname \string\@TruncHyph OT1\endcsname 223
- \expandafter\chardef\csname \string\@TruncHyph LY1\endcsname 0
- \def\@Trunc@Post{\hyphenpenalty\tw@ \exhyphenpenalty\tw@
- \doublehyphendemerits\z@ \finalhyphendemerits\z@
- \the\@Trunc@RestHyph % set invisible hyphenchars for all fonts used
- }}
-%
-% [breakall] is like breakwords, but all characters are treated like
-% the letter "c"; the default language 0 patterns allow hyphenation
-% c-c-c-c-c-c-c-c-c. This means we don't need special patterns!
-\DeclareOption{breakall}{\ExecuteOptions{breakwords}%
- \expandafter\def\expandafter\@Trunc@Post\expandafter{\@Trunc@Post
- \@tempcnta\z@ \chardef\c`\c % in knuth patterns, c allows hyphens
- \loop \lccode\@tempcnta\c \advance\@tempcnta\@ne
- \ifnum\@tempcnta<\@cclvi \repeat}%
- \def\@Trunc@Pre{% force US english
- \lefthyphenmin\@ne \righthyphenmin\@ne
- \doublehyphendemerits\language
- \language\z@ % default English language
- \let\language\doublehyphendemerits
- \uchyph\@ne
- }}
-%
-% [hyphenate] ordinary hyphenation for breakpoints
-\DeclareOption{hyphenate}{% takes precedence over breakwords
- \def\@Trunc@Post{\hyphenpenalty\sixt@@n}\let\@Trunc@Pre\relax}
-%
-% [fit] use true size of truncated text, not requested size.
-\DeclareOption{fit}{\def\@Trunc@Rebox{%
- \setbox\z@\hbox{\unhbox\z@\unskip\unskip\@tempa}%
- \ifdim\wd\z@>\hsize \hbox to\hsize{\unhbox\z@}\else \box\z@ \fi}}
-%
-% Defaults:
-\let\@Trunc@Pre\@empty
-\def\@Trunc@Post{\hyphenpenalty\@M}
-\def\@Trunc@Rebox{\hbox to\hsize{\unhbox\z@\unskip\unskip\@tempa\hfil}}
-\let\@Trunc@DoSelect\@empty
-
-\ProcessOptions\relax
-
-\providecommand{\TruncateMarker}{\,\dots}
-
-\newcommand{\truncate}[3][\TruncateMarker]{% #1=marker #2=width #3=text
- \parbox[b]{#2}{\tolerance9999 \emergencystretch .216\hsize
- \vbadness\maxdimen \vfuzz\vsize % no overfull warnings
- \hbadness\maxdimen \hfuzz\vsize
- % set up hyphenchar switching for all fonts used.
- \edef\@tempb{\the\@Trunc@RestHyph}% save whole stack
- \global\@Trunc@RestHyph{}%
- \ifx\@Trunc@DoSelect\relax
- \let\@Trunc@DoSelect\selectfont
- \def\selectfont{\@Trunc@DoSelect\@Trunc@SaveHChar}%
- \fi
- \@Trunc@SaveHChar % do it for current font
- \setbox\z@\vbox\bgroup
- % First set text in a hbox to see if it fits.
- \setbox\z@\@@line{\ignorespaces #3\unskip\hfil}%
- \ifnum\badness>\@M % text does not fit
- \settowidth\rightskip{#1}%
- \advance\rightskip \z@\@plus\p@
- \parfillskip-\@ne\rightskip \@plus\@ne fil
- \parshape \tw@ \z@\hsize \z@\maxdimen \linepenalty60
- \tracinglostchars\z@
- %% \let\par\relax -- don't do this because \vskip causes infinite loop
- \@Trunc@Pre % must set language before paragraph
- \noindent \vadjust{\penalty-\@MM}% for splitting off first line
- \nobreak\hskip\z@skip % allow first word hyphenation
- \ignorespaces #3% the text
- \pretolerance\hyphenpenalty \@Trunc@Post % set up `hyphenation'
- \@@par
- \ifnum\prevgraf>\@ne
- \egroup \def\@tempa{#1}% use truncation marker
- \else
- \egroup \let\@tempa\@empty% no linebreak, so all text fits; no marker
- \fi
- \else
- \box\z@ \egroup \let\@tempa\@empty
- \fi
- \setbox\@tempboxa\vsplit\z@ to\z@ \unvbox\@tempboxa
- \unskip\unpenalty\unpenalty
- \setbox\z@\lastbox
- \nointerlineskip
- \hfuzz\p@
- \@Trunc@Rebox
- \let\@Trunc@HC\@firstofone \the\@Trunc@RestHyph % restore hyphenchars
- \global\@Trunc@RestHyph\expandafter{\@tempb}% restore the stack itself
- }}
-% (Note that the text may be proessed twice. I could avoid that
-% if there are problems with global counters etc.)
-
-% we save (implicit global) hyphenchar settings for each font on a
-% manual stack -- the token register \@Trunc@RestHyph -- before changing
-% them. We execute \@Trunc@RestHyph to set them to the invisible
-% characters and then again to restore them. (I can't imagine this
-% will ever be required.)
-\newtoks\@Trunc@RestHyph
-\global\@Trunc@RestHyph{}
-%
-\def\@Trunc@SaveHChar{\begingroup
- \edef\@tempa{%
- \hyphenchar\the\font=\noexpand\@Trunc@HC{\the\hyphenchar\font}\relax
- \the\@Trunc@RestHyph}%
- \global\@Trunc@RestHyph\expandafter{\@tempa}%
-% \hyphenchar\font\z@
- \endgroup}
-%
-% select an invisible character for hyphenation. Use \textcompwordmark, if
-% any; use selected numbers for certain encodings (OT1 uses a *missing*
-% character); use a space otherwise.
-\def\@Trunc@HC#1{%
- \@ifundefined{\f@encoding\string\textcompwordmark}{%
- \@ifundefined{\string\@TruncHyph\f@encoding}%
- {32}% If no appropriate character, guess space character may be blank
- {\csname \string\@TruncHyph\f@encoding\endcsname}%
- }{\csname\f@encoding\string\textcompwordmark\endcsname}}%