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%% Copyright (C) 2011-2012 by Martin Scharrer <[email protected]> | ||
%% ---------------------------------------------------------------------- | ||
%% 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 | ||
%% and version 1.3 or later is part of all distributions of LaTeX | ||
%% version 2005/12/01 or later. | ||
%% | ||
%% This work has the LPPL maintenance status `maintained'. | ||
%% | ||
%% The Current Maintainer of this work is Martin Scharrer. | ||
%% | ||
%% This work consists of the files adjcalc.dtx, adjustbox.ins | ||
%% and the derived file adjcalc.sty. | ||
%% It is part of the larger adjustbox bundle. | ||
%% | ||
\ProvidesPackage{adjcalc}[% | ||
2012/05/16 | ||
v1.1 | ||
Provides advanced setlength with multiple back-ends (calc, etex, pgfmath)] | ||
\RequirePackage{xkeyval} | ||
\def\adjcalc@atend{% | ||
\begingroup | ||
\expandafter\ifx\csname glueexpr\endcsname\relax | ||
\endgroup | ||
\RequirePackage{calc}% | ||
\adjcalc@calc | ||
\def\adjcalc@etex{\PackageError{adjcalc}{e-TeX not available for current compiler!}}% | ||
\else | ||
\endgroup | ||
\adjcalc@etex | ||
\fi | ||
} | ||
\def\adjcalc@pgfmath{\AtEndOfPackage{\RequirePackage{pgf}}\def\adjcalc@atend{\adjcalc@pgfmath}} | ||
\def\adjcalc@etex{\def\adjcalc@atend{\adjcalc@etex}} | ||
\def\adjcalc@calc{\AtEndOfPackage{\RequirePackage{calc}}\def\adjcalc@atend{\adjcalc@calc}} | ||
\def\adjcalc@overwrite{\AtEndOfPackage{\adjcalc@overwrite}} | ||
\def\adjcalc@defaultunit{bp}% | ||
\DeclareOptionX<adjcalc>{pgfmath}{\adjcalc@pgfmath} | ||
\DeclareOptionX<adjcalc>{etex}{\adjcalc@etex} | ||
\DeclareOptionX<adjcalc>{calc}{\adjcalc@calc} | ||
\DeclareOptionX<adjcalc>{none}{% | ||
\let\adjcalc@atend\relax | ||
\let\adjcalc@overwrite\relax | ||
\def\adjsetlength{\setlength}% | ||
\def\adjaddtolength{\addtolength}% | ||
\def\adjsetcounter{\setcounter}% | ||
\def\adjaddtocounter{\addtocounter}% | ||
} | ||
\DeclareOptionX<adjcalc>{overwrite}{\adjcalc@overwrite} | ||
\DeclareOptionX<adjcalc>{defaultunit}[bp]{% | ||
\begingroup | ||
\def\@tempa{#1}% | ||
\def\@tempb{none}% | ||
\ifx\@tempa\@tempb% 'none': | ||
\endgroup | ||
\def\adjsetlengthdefault{\adjsetlength}% | ||
\else | ||
\ifx\@tempb\adjcalc@defaultunit | ||
\endgroup | ||
% was 'none' before | ||
\let\adjsetlengthdefault\adjsetlengthdefault@ | ||
\else | ||
\endgroup | ||
\fi | ||
\fi | ||
\def\adjcalc@defaultunit{#1}% | ||
} | ||
\ProcessOptionsX*<adjcalc> | ||
\disable@keys{adjcalc}{none} | ||
\def\adjcalcset{% | ||
\setkeys{adjcalc}% | ||
} | ||
\def\adjcalc@etex{% | ||
\protected\def\adjsetlength##1##2{% | ||
##1=\glueexpr(##2)\relax | ||
}% | ||
\protected\def\adjaddtolength##1##2{% | ||
\advance##1 by \glueexpr(##2)\relax | ||
}% | ||
\protected\def\adjsetcounter##1##2{% | ||
\@ifundefined{c@##1}% | ||
{\@nocounterr{##1}}% | ||
{\global\csname c@##1\endcsname\numexpr(##2)\relax}% | ||
}% | ||
\protected\def\adjaddtocounter##1##2{% | ||
\@ifundefined{c@##1}% | ||
{\@nocounterr{##1}}% | ||
{\global\advance\csname c@##1\endcsname\numexpr(##2)\relax}% | ||
}% | ||
\def\adjsetlengthdefault@##1##2{% | ||
\@defaultunits##1=\glueexpr##2 \adjcalc@defaultunit\relax\@nnil | ||
}% | ||
\let\adjsetlengthdefault\adjsetlengthdefault@ | ||
} | ||
\newif\if@adjcalc@needsdefault | ||
\def\adjcalc@calc{% | ||
\DeclareRobustCommand\adjsetlength{\calc@assign@skip}% | ||
\DeclareRobustCommand\adjaddtolength[1]{\calc@assign@skip{\advance ##1}}% | ||
\DeclareRobustCommand\adjsetcounter[2]{\@ifundefined{c@##1}{\@nocounterr{##1}}{\calc@assign@count{\global\csname c@##1\endcsname}{##2}}}% | ||
\DeclareRobustCommand\adjaddtocounter[2]{\@ifundefined{c@##1}{\@nocounterr{##1}}{\calc@assign@count{\global\advance\csname c@##1\endcsname}{##2}}}% | ||
\def\adjsetlengthdefault@##1##2{% | ||
\begingroup | ||
\def\calc@post@scan####1!{% | ||
\def\@tempa{####1}% | ||
\ifx\@tempa\@empty | ||
\endgroup% to end calc processing | ||
% is number only | ||
\global\@adjcalc@needsdefaulttrue | ||
\else | ||
\endgroup% to end calc processing | ||
% full expression | ||
\global\@adjcalc@needsdefaultfalse | ||
\fi | ||
}% | ||
\calc@assign@skip{##1}{##2 \adjcalc@defaultunit}% | ||
\endgroup | ||
\if@adjcalc@needsdefault | ||
##1=##2 \adjcalc@defaultunit\relax | ||
\else | ||
\calc@assign@skip{##1}{##2}% | ||
\fi | ||
}% | ||
\def\adjcalc@checkdefault##1\@nnil##2##3{% | ||
\ifx\relax##1\relax\else | ||
\calc@assign@skip{##2}{##3}% | ||
\fi | ||
}% | ||
\let\adjsetlengthdefault\adjsetlengthdefault@ | ||
} | ||
\def\adjcalc@pgfmath{% | ||
\DeclareRobustCommand\adjsetlength{\pgfmathsetlength}% | ||
\DeclareRobustCommand\adjaddtolength{\pgfmathaddtolength}% | ||
\DeclareRobustCommand\adjsetcounter{\pgfmathsetcounter}% | ||
\DeclareRobustCommand\adjaddtocounter{\pgfmathaddtocounter}% | ||
\def\adjsetlengthdefault@##1##2{% | ||
\edef\pgfmathresultunitscale{1\adjcalc@defaultunit}% | ||
\let\pgfmathpostparse\pgfmathscaleresult | ||
\pgfmathparse{##2}% | ||
##1=\pgfmathresult pt\relax | ||
}% | ||
\let\adjsetlengthdefault\adjsetlengthdefault@ | ||
} | ||
\def\adjcalc@overwrite{% | ||
\let\setlength\adjsetlength | ||
\let\addtolength\adjaddtolength | ||
\let\setcounter\adjsetcounter | ||
\let\addtocounter\adjaddtocounter | ||
} | ||
\adjcalc@atend | ||
\endinput | ||
%% | ||
%% End of file `adjcalc.sty'. |
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