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%D \module
%D [ file=cont-log,
%D version=1995.10.10,
%D title=\CONTEXT\ Miscellaneous Macros,
%D subtitle=\TEX\ Logos,
%D author=J. Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\writestatus{loading}{ConTeXt TeX Logos}
%D The system that is used to typeset this text is called \TEX,
%D typeset with an lowered~E. From te beginning of \TEX,
%D authors of macro packages adapted this raising and lowering
%D style. In this module we define some of those logos.
\unprotect
\unexpanded\def\TeX
{\dontleavehmode
\begingroup
\setbox\scratchbox\hbox{M}%
T%
\kern-.1667\wd\scratchbox
\lower.5ex\hbox{E}%
\kern-.125\wd\scratchbox
X%
\endgroup}
\unexpanded\def\ConTeXt{Con\TeX t}
\unexpanded\def\PPCHTeX{ppch\TeX}
\unexpanded\def\PRAGMA {Pragma ADE}
\unexpanded\def\LaTeX % requested by erik frambach
{\dontleavehmode
\begingroup
\setbox\scratchbox\hbox{L}%
\scratchdimen\ht\scratchbox
\setbox\scratchbox\hbox{\txx A}%
L\kern-.55\wd\scratchbox
\raise\scratchdimen\hbox{\lower\ht\scratchbox\copy\scratchbox}%
\kern-.2\wd\scratchbox\TeX
\endgroup}
\unexpanded\def\TaBlE
{T%
\kern-.27em\lower.5ex\hbox{A}%
\kern-.18emB%
\kern-.1em\lower.5ex\hbox{L}%
\kern-.075emE}
\unexpanded\def\PiCTeX
{P%
\kern-.12em\lower.5ex\hbox{I}%
\kern-.075em C%
\kern-.11em\TeX}
\def\syst_logos_ams_script#1%
{$\cal\ifdim\bodyfontsize>1.1em\scriptstyle\fi#1$}
\unexpanded\def\AmSTeX
{\dontleavehmode
\syst_logos_ams_script A%
\kern-.1667em\lower.5ex\hbox{\syst_logos_ams_script M}%
\kern-.125em\syst_logos_ams_script S%
-\TeX}
\unexpanded\def\LamSTeX
{L%
\kern-.4em\raise.3ex\hbox{\syst_logos_ams_script A}%
\kern-.25em\lower.4ex\hbox{\syst_logos_ams_script M}%
\kern-.1em{\syst_logos_ams_script S}%
-\TeX}
\unexpanded\def\AmSLaTeX
{\dontleavehmode
\syst_logos_ams_script A%
\kern-.1667em\lower.5ex\hbox{\syst_logos_ams_script M}%
\kern-.125em\AMSswitch S%
-\LaTeX}
%D Alternative \CONTEXT\ logo, first Idris S.~Hamid's version:
%D
%D \def\Context
%D {{\sc C\kern -.0667emo\kern -.0667emn\kern -.0549emt\kern
%D -.1667em\lower.5ex\hbox {e}\kern -.125emx\kern -.0549emt}}
%D
%D I changed this into one that adapts itself:
\unexpanded\def\Context % wrong usage of \getscaledglyph
{\dontleavehmode
\begingroup
C\kern -.0667em\getscaledglyph{.8}\empty{O\kern -.0667emN\kern
-.0549emT\doifitalicelse{\kern-.1em}{\kern-.1667em}\lower.5ex\hbox
{E}\doifitalicelse\empty{\kern-.11em}X\kern-.055emT}%
\endgroup}
%D The \METAFONT\ and \METAPOST\ logos adapt themselves to the
%D current fontsize, an ugly but usefull hack.
\let\logofont\nullfont
\loadmapfile[original-base.map] % stil needed?
\unexpanded\def\setMFPfont% more sensitive for low level changes
{\font\logofont=logo%
\ifx\fontalternative\s!bf\else
\ifx\fontalternative\s!it\else
\ifx\fontalternative\s!sl\else
\ifx\fontalternative\s!bi\else
\ifx\fontalternative\s!bs\else
\fi\fi\fi\fi\fi
10 at \currentfontscale\bodyfontsize % there is no afm in the minimals yet
\logofont}
\def\syst_logos_meta_hyphen % there is no hyphenchar in this font
{\discretionary{\vrule\s!height.33em\s!depth-.27em\s!width.33em}{}{}}
\unexpanded\def\MetaFont
{\dontleavehmode
\begingroup
\setMFPfont META\syst_logos_meta_hyphen FONT%
\endgroup}
% \unexpanded\def\MetaPost
% {\dontleavehmode
% \begingroup
% \setMFPfont META\syst_logos_meta_hyphen POST%
% \endgroup}
%
% As decided on the ConText Meeting 2013 the logo has been simplified:
\unexpanded\def\MetaPost
{MetaPost}
\unexpanded\def\MetaFun
{MetaFun}
%D \macros
%D {TEX, METAFONT, METAPOST, METAFUN,
%D PICTEX, TABLE,
%D CONTEXT, PPCHTEX,
%D AMSTEX, LATEX, LAMSTEX}
%D
%D We define the funny written ones as well as the less
%D error prone upper case names (in \CONTEXT\ we tend to
%D write all user defined commands, like abbreviations, in
%D uppercase.)
\unexpanded\def\METAFONT {\MetaFont}
\unexpanded\def\METAPOST {\MetaPost}
\unexpanded\def\PPCHTEX {\PPCHTeX}
\unexpanded\def\CONTEXT {\ConTeXt}
\unexpanded\def\METAFUN {\MetaFun}
\unexpanded\def\TEX {\TeX}
\unexpanded\def\LATEX {\LaTeX}
\unexpanded\def\PICTEX {\PiCTeX}
\unexpanded\def\TABLE {\TaBlE}
\unexpanded\def\AMSTEX {\AmSTeX}
\unexpanded\def\LAMSTEX {\LamSTeX}
\unexpanded\def\INRSTEX {inrs\TeX}
%D And this is how they show up: \TeX, \MetaFont, \MetaPost,
%D \PiCTeX, \TaBlE, \ConTeXt, \PPCHTeX, \AmSTeX, \LaTeX,
%D \LamSTeX.
%D Some placeholders:
\unexpanded\def\eTeX {\mathematics{\varepsilon}-\TeX}
\unexpanded\def\pdfTeX {pdf\TeX}
\unexpanded\def\pdfeTeX{pdfe-\TeX}
\unexpanded\def\luaTeX {lua\TeX}
\unexpanded\def\metaTeX{meta\TeX}
\unexpanded\def\XeTeX {X\lower.5ex\hbox{\kern-.15em\mirror{E}}\kern-.1667em\TeX}
% Adapted from a patch by Mojca:
\def\syst_logos_xetex_e
{\setbox\scratchbox\hbox{E}%
\raise\dimexpr\ht\scratchbox+\dp\scratchbox\relax\hbox{\rotate[\c!rotation=180]{\box\scratchbox}}}
\unexpanded\def\XeTeX
{X\lower.5ex
\hbox
{\kern-.15em
\iffontchar\font"018E\relax
\char"018E%
\else
\ifx\fontalternative\s!bf \mirror{E}\else
\ifx\fontalternative\s!it\syst_logos_xetex_e\else
\ifx\fontalternative\s!sl\syst_logos_xetex_e\else
\ifx\fontalternative\s!bi\syst_logos_xetex_e\else
\ifx\fontalternative\s!bs\syst_logos_xetex_e\else
\mirror{E}\fi\fi\fi\fi\fi
\fi}%
\kern-.1667em\TeX}
\let\ETEX \eTeX
\let\PDFTEX \pdfTeX
\let\PDFETEX\pdfeTeX
\let\LUATEX \luaTeX
\let\LuaTeX \luaTeX
\let\XETEX \XeTeX
% \unexpanded\def\MkApproved % joke, not used so it might move
% {\dontleavehmode\rotate
% [\c!rotation={\ifnum\texengine=\luatexengine\cldcontext{45-45*\the\luatexversion/100}\else0\fi},
% \c!align=\v!middle,
% \c!foregroundstyle=\v!type,
% \c!foregroundcolor=darkred,
% \c!frame=\v!on,
% \c!offset=1ex,
% \c!background=\v!color,
% \c!backgroundcolor=lightgray,
% \c!framecolor=darkred,
% \c!rulethickness=2pt]
% {Mk\ifnum\texengine=\luatexengine IV\else II\fi\\approved}}
% \unexpanded\def\luaTeX
% {\dontleavehmode\begingroup
% Lua%
% \setbox0\hbox{oT}%
% \setbox2\hbox{o\kern0ptT}%
% \ifdim\wd0=\wd2
% \setbox0\hbox dir TRT{To}%
% \setbox2\hbox{T\kern0pto}%
% \hskip\dimexpr\wd0-\wd2\relax
% \fi
% \TeX
% \endgroup}
%
% a further iteration from the list, patched again
% \ifx\fontalternative\s!it -\else
% \ifx\fontalternative\s!sl -\else
% \ifx\fontalternative\s!bi -\else
% \ifx\fontalternative\s!bs -\fi\fi\fi\fi
\unexpanded\def\LuaTeX
{\dontleavehmode
\begingroup
Lua%
% hope for kerning, try aT
\setbox0\hbox{aT}%
\setbox2\hbox{a\kern\zeropoint T}%
\ifdim\wd0=\wd2 % kerns can go two ways
% no aT kerning, try oT as a is not symmetrical
\setbox0\hbox{oT}%
\setbox2\hbox{o\kern\zeropoint T}%
\ifdim\wd0=\wd2 % kerns can go two ways
% no aT and oT kerning, try To
\setbox0\hbox{To}%
\setbox2\hbox{T\kern\zeropoint o}%
% maybe we need to compensate for the angle (sl/it/bs/bi)
\fi
\ifdim\wd0=\wd2\else
\kern\dimexpr\wd0-\wd2\relax
\fi
\fi
\TeX
\endgroup}
\let\luaTeX \LuaTeX
\let\LUATEX \LuaTeX
\unexpanded\def\MKII{MkII}
\unexpanded\def\MKIV{MkIV}
\unexpanded\def\MKVI{MkVI}
\unexpanded\def\MPII{MpII}
\unexpanded\def\MPIV{MpIV}
\appendtoks
\def\ConTeXt {ConTeXt}%
\def\MetaPost{MetaPost}%
\def\MetaFont{MetaFont}%
\def\MetaFun {MetaFun}%
\def\TeX {TeX}%
\to \everysimplifycommands
\protect \endinput
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