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authorKarl Berry <karl@freefriends.org>2016-06-09 22:51:31 +0000
committerKarl Berry <karl@freefriends.org>2016-06-09 22:51:31 +0000
commite0e7b37a1cb8da46302fda86c287ba09275706e8 (patch)
tree6e9decd4489d2ef4bb42562e7f950360a415dfb6 /Master/texmf-dist/tex/latex/animate/animfp.sty
parent929c285658a600e6fe774872418ff3746d55cee9 (diff)
animate (8jun16)
git-svn-id: svn://tug.org/texlive/trunk@41324 c570f23f-e606-0410-a88d-b1316a301751
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diff --git a/Master/texmf-dist/tex/latex/animate/animfp.sty b/Master/texmf-dist/tex/latex/animate/animfp.sty
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-% This material is subject to the LaTeX Project Public License. See
-% http://mirrors.ctan.org/help/Catalogue/licenses.lppl.html
-% for the details of that license.
-
-% This package is loaded by animate.sty. It defines \@anim@add for fixed point
-% addition
-
-% Copyright notice:
-% The code relavant to fixed point addition was taken with virtually no
-% modification from Michael Mehlich's fp-basic[1996/05/13] package
-
-% Copyright 2008 Alexander Grahn
-
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{animfp}[2009/07/23 fixed point addition for animate.sty]
-
-%adding two values
-\def\@anim@add#1#2#3{\afp@callc\afp@add#1{#2}{#3}+\relax} % #1 := #2+#3
-
-%allocation of registers
-\newcount\afp@xs %sign of 1st value
-\newcount\afp@xia%integer part of 1st value
-\newcount\afp@xib%integer part of 1st value
-\newcount\afp@xfa%fractional part of 1st value
-\newcount\afp@xfb%fractional part of 1st value
-\countdef\afp@ys=5 %sign of 2nd value
-\countdef\afp@yia=6%integer part of 2nd value
-\countdef\afp@yib=7%integer part of 2nd value
-\countdef\afp@yfa=8%fractional part of 2nd value
-\countdef\afp@yfb=9%fractional part of 2nd value
-
-\newcount\afp@rega %auxiliary registers
-\newcount\afp@regb
-\countdef\afp@regc=36
-
-\newcount\afp@regs %local auxiliary registers
-\countdef\afp@count=45
-
-%auxiliary macros which may be used in all of the following macros
-\def\afp@ignorenext#1{}
-\def\afp@first#1#2\relax{#1}
-\def\afp@swallow#1\relax{}
-
-\def\ifafp@zero#1{%
- \ifnum%
- \expandafter\ifnum\csname afp@#1ia\endcsname=0 0\else1\fi%
- \expandafter\ifnum\csname afp@#1ib\endcsname=0 0\else1\fi%
- \expandafter\ifnum\csname afp@#1fa\endcsname=0 0\else1\fi%
- \expandafter\ifnum\csname afp@#1fb\endcsname=0 0\else1\fi%
- =0\relax%
-}
-
-%read value
-\def\afp@correctintcounter#1\relax{%
- {\edef\afp@tmp{#1}%
- \afp@count=0\relax%
- \loop%
- \edef\afp@tmpa{\expandafter\afp@first\afp@tmp\noexpand\relax}%
- \expandafter\ifx\afp@tmpa0\relax%
- \advance\afp@count1\relax%
- \edef\afp@tmp{\expandafter\afp@ignorenext\afp@tmp}%
- \repeat%
- \ifnum\afp@count>18\relax%
- \PackageError{animfp}{Overflow}{}%
- \fi%
- \expandafter\if!\afp@tmp!%
- \advance\afp@count-18\relax%
- \afp@count=-\afp@count%
- \loop%
- \ifnum\afp@count>0\relax%
- \afp@regc=\afp@rega%
- \divide\afp@rega10\relax\multiply\afp@rega10\relax%
- \advance\afp@regc-\afp@rega\multiply\afp@regc100000000\relax%
- \divide\afp@rega10\relax%
- \divide\afp@regb10\relax\advance\afp@regb\afp@regc%
- \advance\afp@count-1\relax%
- \repeat%
- \global\afp@rega=\afp@rega%
- \global\afp@regb=\afp@regb%
- \else%
- \PackageError{animfp}{Number too big}{}%
- \fi%
- }%
-}
-\def\afp@@setintcounter#1#2#3#4#5#6#7#8#9{%
- \afp@regb=#1#2#3#4#5#6#7#8#9\relax%
- \afp@correctintcounter%
-}
-\def\afp@setintcounter#1#2#3#4#5#6#7#8#9{%
- \afp@rega=#1#2#3#4#5#6#7#8#9\relax%
- \afp@@setintcounter%
-}
-
-\def\afp@@setfractcounter#1#2#3#4#5#6#7#8#9{%
- \afp@regb=#1#2#3#4#5#6#7#8#9\relax%
- \afp@swallow%
-}
-\def\afp@setfractcounter#1#2#3#4#5#6#7#8#9{%
- \afp@rega=#1#2#3#4#5#6#7#8#9\relax%
- \afp@@setfractcounter%
-}
-
-\def\afp@getsign#1\relax{%
- {\afp@regs=1\relax%
- \edef\afp@tmp{#1}%
- \loop%
- \edef\afp@tmpa{\expandafter\afp@first\afp@tmp\noexpand\relax}%
- \expandafter\ifx\afp@tmpa-\relax%
- \multiply\afp@regs-1\relax%
- \fi%
- \ifnum\expandafter\ifx\afp@tmpa-1\else0\fi\expandafter\ifx\afp@tmpa+1\else0\fi>0%
- \edef\afp@tmp{\expandafter\afp@ignorenext\afp@tmp}%
- \repeat%
- \global\let\afp@tmp\afp@tmp%
- \global\afp@regs=\afp@regs%
- }%
-}
-
-\def\afp@removeleadingzeros#1\relax{%
- {\edef\afp@tmp{#1}%
- \loop%
- \edef\afp@tmpa{\expandafter\afp@first\afp@tmp\noexpand\relax}%
- \expandafter\ifx\afp@tmpa0\relax%
- \edef\afp@tmp{\expandafter\afp@ignorenext\afp@tmp}%
- \repeat%
- \global\let\afp@tmp\afp@tmp%
- }%
-}
-
-\newif\ifafp@nonstop
-\def\afp@strip#1{%
- {\edef\afp@tmp{#1}%
- \edef\afp@tmpb{}%
- \ifx\afp@tmp\@empty\else%
- \afp@nonstoptrue%
- \loop%
- \edef\afp@tmpa{\expandafter\afp@first\afp@tmp\noexpand\relax}%
- \expandafter\ifx\afp@tmpa-\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa+\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa0\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa1\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa2\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa3\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa4\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa5\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa6\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa7\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa8\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \expandafter\ifx\afp@tmpa9\relax\edef\afp@tmpb{\afp@tmpb\afp@tmpa}\else%
- \ifx\afp@tmpa\@empty\afp@nonstopfalse\else%
- \ifx\afp@tmpa\space\afp@nonstopfalse\else%
- \PackageError{animfp}{Illegal character `\afp@tmpa'\space found in float number}{}%
- \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi%
- \edef\afp@tmp{\expandafter\afp@ignorenext\afp@tmp}%
- \ifx\afp@tmp\@empty\afp@nonstopfalse\fi%
- \ifafp@nonstop%
- \repeat%
- \fi%
- \global\let\afp@tmp\afp@tmpb%
- }%
-}
-
-\def\afp@readvalue#1#2#3{%
- % #1 macro family to catch the value
- % #2.#3 value
- %
- % regular expression [+|-]*[d]_0^18.[d]*
- %
- \afp@strip{#2}%
- %sign
- \expandafter\afp@getsign\afp@tmp\relax%
- \csname afp@#1s\endcsname=\afp@regs%
- %
- %integer part
- \afp@removeleadingzeros\afp@tmp\relax%
- \expandafter\afp@setintcounter\afp@tmp000000000000000000\relax%
- \csname afp@#1ia\endcsname=\afp@rega%
- \csname afp@#1ib\endcsname=\afp@regb%
- %
- %fractional part
- \afp@strip{#3}%
- \expandafter\afp@setfractcounter\afp@tmp000000000000000000\relax%
- \csname afp@#1fa\endcsname=\afp@rega%
- \csname afp@#1fb\endcsname=\afp@regb%
- %
- %correct sign
- \ifnum\afp@rega=0\relax%
- \ifnum\afp@regb=0\relax%
- \expandafter\ifnum\csname afp@#1ib\endcsname=0\relax%
- \expandafter\ifnum\csname afp@#1ia\endcsname=0\relax%
- \csname afp@#1s\endcsname=1\relax%
- \fi%
- \fi%
- \fi%
- \fi%
-}
-
-%store value in macro
-\def\afp@store#1#2{%
- % #1 macro
- % #2 macro family (value) to store
- %
- \ifafp@zero{#2}%
- \csname afp@#2s\endcsname=1\relax%
- \fi%
- \expandafter\ifnum\csname afp@#2s\endcsname<0\relax%
- \edef#1{-}%
- \else%
- \edef#1{}%
- \fi%
- \expandafter\ifnum\csname afp@#2ia\endcsname=0\relax%
- \expandafter\ifnum\csname afp@#2ib\endcsname=0\relax%
- \edef#1{#10}%
- \else%
- \edef#1{#1\expandafter\the\csname afp@#2ib\endcsname}%
- \fi%
- \else%
- \expandafter\advance\csname afp@#2ib\endcsname1000000000\relax%
- \edef#1{#1\expandafter\the\csname afp@#2ia\endcsname\expandafter\afp@ignorenext\the\csname afp@#2ib\endcsname}%
- \fi%
- \expandafter\advance\csname afp@#2fa\endcsname1000000000\relax%
- \expandafter\advance\csname afp@#2fb\endcsname1000000000\relax%
- \edef#1{#1\noexpand.\expandafter\afp@ignorenext\the\csname afp@#2fa\endcsname\expandafter\afp@ignorenext\the\csname afp@#2fb\endcsname}%
-}
-
-%macros to expand some arguments
-\def\afp@callc#1#2#3#4{%
- % #1 macro to call
- % #2 macro, which gets the result
- % #3 1st value
- % #4 2nd value
- % expand the values and split them into the integer and the fractional parts
- \edef\next{\noexpand#1\noexpand#2#3..\noexpand\relax#4..\noexpand\relax}%
- \next%
-}
-
-%remove trailing zeros of argument (A. Grahn 2009/06/29)
-\def\afp@removetrailingzeros#1\relax{%
- {%
- \edef\afp@tmp{#1}%
- \gdef\afp@reversed{}%
- \expandafter\afp@reverse\afp@tmp,\@nil%
- \afp@removeleadingzeros\afp@reversed\relax%
- \gdef\afp@reversed{}%
- \expandafter\afp@reverse\afp@tmp,\@nil%
- \global\let\afp@tmp\afp@reversed%
- }%
-}
-\def\afp@reverse#1#2\@nil{% reverse string, used in \afp@removetrailingzeros
- \if#1,\else%
- \xdef\afp@reversed{#1\afp@reversed}%
- \afp@reverse#2\@nil%
- \fi%
-}%
-
-%add two values
-\def\afp@add#1#2.#3.#4\relax#5.#6.#7\relax#8\relax{%
- % #1 macro, which gets the result
- % #2 integer part of 1st value
- % #3 fractional part of 1st value
- % #4 dummy to swallow everthing after the 2nd '.'
- % #5 integer part of 2nd value
- % #6 fractional part of 2nd value
- % #7 dummy to swallow everthing after the 2nd '.'
- %
- {%
- \afp@readvalue{x}{#2}{#3}%
- \afp@readvalue{y}{#5}{#6}%
- %
- \ifnum\afp@xs=\afp@ys%
- \advance\afp@xfb\afp@yfb%
- \advance\afp@xfa\afp@yfa%
- \ifnum\afp@xfb<1000000000\relax\else%
- \advance\afp@xfb-1000000000\relax%
- \advance\afp@xfa1\relax%
- \fi%
- \advance\afp@xib\afp@yib%
- \ifnum\afp@xfa<1000000000\relax\else%
- \advance\afp@xfa-1000000000\relax%
- \advance\afp@xib1\relax%
- \fi%
- \advance\afp@xia\afp@yia%
- \ifnum\afp@xib<1000000000\relax\else%
- \advance\afp@xib-1000000000\relax%
- \advance\afp@xia1\relax%
- \fi%
- \ifnum\afp@xia<1000000000\relax\else%
- \PackageError{animfp}{Overflow}{}%
- \fi%
- \afp@store\afp@tmp{x}%
- \else%
- \advance\afp@xfb-\afp@yfb%
- \ifnum\afp@xfb<0\relax%
- \advance\afp@yfa1\relax%
- \advance\afp@xfb1000000000\relax%
- \fi%
- \advance\afp@xfa-\afp@yfa%
- \ifnum\afp@xfa<0\relax%
- \advance\afp@yib1\relax%
- \advance\afp@xfa1000000000\relax%
- \fi%
- \advance\afp@xib-\afp@yib%
- \ifnum\afp@xib<0\relax%
- \advance\afp@yia1\relax%
- \advance\afp@xib1000000000\relax%
- \fi%
- \advance\afp@xia-\afp@yia%
- \ifnum\afp@xia<0\relax%
- \afp@xs=-\afp@xs%
- \ifnum\afp@xfb=0\relax\else%
- \advance\afp@xfb-1000000000\relax\afp@xfb=-\afp@xfb%
- \advance\afp@xfa1\relax%
- \fi%
- \ifnum\afp@xfa=0\relax\else%
- \advance\afp@xfa-1000000000\relax\afp@xfa=-\afp@xfa%
- \advance\afp@xib1\relax%
- \fi%
- \ifnum\afp@xib=0\relax\else%
- \advance\afp@xib-1000000000\relax\afp@xib=-\afp@xib%
- \advance\afp@xia1\relax%
- \fi%
- \relax\afp@xia=-\afp@xia%
- \fi%
- \afp@store\afp@tmp{x}%
- \fi%
- %
- \global\let\afp@tmp\afp@tmp%
- }%
- \afp@removetrailingzeros\afp@tmp\relax% (A. Grahn 2009/06/29)
- \let#1\afp@tmp%
-}