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%%
%% This is file `interfaces-truncate.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% interfaces.dtx (with options: `truncate')
%%
%% This is a generated file.
%%
%% interfaces : 2010/11/21 v2.3 - interfaces : interfaces with keys for other packages (FC)
%%
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3 of this license or (at your option) any later
%% version. The latest version of this license is in
%% http://www.latex-project.org/lppl.txt
%%
%% This work consists of the main source file interfaces.dtx
%% and the derived files
%% interfaces.sty, interfaces.pdf, interfaces.ins,
%% interfaces-base.sty,
%% interfaces-LaTeX.sty,
%% interfaces-tikz.sty,
%% interfaces-titlesec.sty,
%% interfaces-hyperref.sty,
%% interfaces-bookmark.sty,
%% interfaces-hypbmsec.sty,interfaces-hypbmsec.code.tex,
%% interfaces-fancyhdr.sty,
%% interfaces-marks.sty,
%% interfaces-tocloft.sty,
%% interfaces-makecell.sty,
%% interfaces-enumitem.sty,
%% interfaces-truncate.sty,
%% interfaces-appendix.sty,
%% interfaces-embedfile.sty,
%% interfaces-environ.sty,
%% interfaces-umrand.sty,
%% interfaces-scrlfile.sty,
%% interfaces-pgfkeys.sty,
%% interfaces-etoolbox.sty
%%
%% interfaces: interfaces with keys for other packages (FC)
%% Copyright (C) 2010 by Florent Chervet <florent.chervet@free.fr>
%%
\ProvidesPackage{interfaces-truncate}
\newrobustcmd\trunctext[3][\TruncateMarker]{% do nothing if width of #3 is less than #2
\begingroup
\hbadness\maxdimen\hfuzz\vsize
\setbox\z@=\hbox to\dimexpr#2\relax{\ignorespaces#3\unskip}%
\ifnum\badness>\@M
\def\next{\truncate[{#1}]{#2}{#3}}%
\else \def\next{#3}%
\fi
\expandafter\endgroup\next
}% \trunctext
\newrobustcmd\htruncadjust[1]{\@testopt
{\itf@htruncadjust{#1}}{}%
}% \htruncadjust
\long\def\itf@htruncadjust#1[#2]#3{%#1=total width, #2=[x_1..x_n], #3=text_1..text_n
\begingroup
\let\itf@trunc@width\@empty
\let\itf@istruncated\@gobble % to remove the first comma
\let\the@dimen\relax
\count@\z@ \dimen@\z@
\ifblank{#2}% no optional [x_1,...,x_n] parameters
{%
\@for\x:=#3\do{%
\advance \count@ \@ne
\setbox\z@=\hbox{\ignorespaces\x\unskip}%
\dimen\count@ = \wd\z@
\toks\count@\expandafter{\the\dimen\count@}%
\advance\dimen@ \dimen\count@}%
}
{%
\@for\x:=#2\do{%
\advance \count@ \@ne
\toks\count@\expandafter{\x\p@}%
\advance\dimen@ \x\p@
\dimen\count@ -\@ne\p@}%
}%
\advance\count@\@ne \dimendef\itf@freespace=\count@
\advance\count@\@ne \dimendef\itf@tempdim=\count@
\advance\count@\@ne \dimendef\itf@sum=\count@
\count@\z@
\itf@freespace\z@ % free space left when w_i < x_i/sum(x_i) * total
\@for\x:=#3\do{%
\advance \count@ \@ne
\ifdim \dimen\count@<\z@ % not measured before
\setbox\z@=\hbox{\ignorespaces\x\unskip}%
\dimen\count@ = \wd\z@
\fi
\itf@tempdim = \itf@scaledimen{#1}*\the\toks\count@/\dimen@\relax
\ifdim \dimen\count@ > \itf@tempdim
\dimen\count@ = \itf@tempdim
\edef\itf@istruncated{\itf@istruncated,\the\count@}%
\advance\itf@sum by\the\toks\count@
\else
\advance\itf@freespace \itf@tempdim
\advance\itf@freespace -\dimen\count@
\fi
\edef\itf@trunc@width{\itf@trunc@width\the\count@{\the@dimen\the\count@}}%
}%
%% Free space=\the\itf@freespace\par
\ifdim\itf@freespace > \z@ % reinsert free space proportionally
\ifx\itf@istruncated\@gobble\else
\@for\x:=\itf@istruncated\do{%
\advance\dimen\x by\itf@scaledimen\itf@freespace*\the\toks\x/\itf@sum\relax
}%
\fi\fi
\def\the@dimen{\the\dimen}%
\edef\itf@trunc@width{\itf@trunc@width}%
\expandafter\endgroup
\expandafter\def
\expandafter\itf@trunc@width
\expandafter{\itf@trunc@width}%
%% total=\the\dimexpr#1\relax
}% \itf@htruncadjust
\def\itf@scalefactor#1#2{\strip@pt\dimexpr#1*65536/#2\relax}
\def\itf@scaledimen#1*#2/#3\relax{%
\dimexpr\itf@scalefactor{#2}{#3}\dimexpr#1\relax\relax
}% \itf@scaledimen
\newcommand*\htruncwidth[1]{% purely expandable
\expandafter\itf@htruncwidth\itf@trunc@width\relax\relax\@nnil{#1}%
}% \htruncwidth
\def\itf@htruncwidth#1#2#3\@nnil#4{%
\ifx\relax#1\itf@trunc@nosuchwidth{#4}%
\else\ifnum#1=#4
#2%
\else
\itf@htruncwidth#3\@nnil{#4}%
\fi\fi
}% \itf@htruncwidth
\def\itf@trunc@nosuchwidth#1{%
\PackageError{interfaces-truncate}
{You requested the width for text nr#1
\MessageBreak but there is no such text
\MessageBreak Therefore no such width!}\@ehd
}% \itf@trunc@nosuchwidth
\endinput
%%
%% End of file `interfaces-truncate.sty'.
|
