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%D \module
%D [ file=symb-mis,
%D version=2002.05.07,
%D title=\CONTEXT\ Symbol Libraries,
%D subtitle=Miscelaneous,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright=PRAGMA-ADE]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\unprotect
%D We predefine some common symbols and conversions that will
%D be understood by many commands.
\definesymbol [\v!none] []
\definesymbol [bullet] [\mathematics{\bullet}]
\definesymbol [dash] [\mathematics{-}]
\definesymbol [star] [\mathematics{\star}]
\definesymbol [triangle] [\mathematics{\triangleright}]
\definesymbol [circle] [\mathematics{\circ}]
\definesymbol [medcircle] [\hbox{\setsmallbodyfont\raise\onepoint\hbox{$\bigcirc$}}]
\definesymbol [bigcircle] [\mathematics{\bigcirc}]
\definesymbol [square] [\mathematics{\square}]
\definesymbol [diamond] [\mathematics{\diamond}]
\definesymbol [1] [{\symbol[bullet]}]
\definesymbol [2] [{\symbol[dash]}]
\definesymbol [3] [{\symbol[star]}]
\definesymbol [4] [{\symbol[triangle]}]
\definesymbol [5] [{\symbol[circle]}]
\definesymbol [6] [{\symbol[medcircle]}]
\definesymbol [7] [{\symbol[bigcircle]}]
\definesymbol [8] [{\symbol[square]}]
%D Special hyperlinks, namely those to pages or navigational
%D properties, are associated with symbols.
\definesymbol [\v!firstpage] [\gotobegincharacter]
\definesymbol [\v!previouspage] [\gobackwardcharacter]
\definesymbol [\v!nextpage] [\goforwardcharacter]
\definesymbol [\v!lastpage] [\gotoendcharacter]
\definesymbol [\v!firstsubpage] [\gotobegincharacter]
\definesymbol [\v!previoussubpage] [\gobackwardcharacter]
\definesymbol [\v!nextsubpage] [\goforwardcharacter]
\definesymbol [\v!lastsubpage] [\gotoendcharacter]
\definesymbol [\v!PreviousJump] [\gobackjumpcharacter]
\definesymbol [\v!NextJump] [\goforjumpcharacter]
\definesymbol [\v!CloseDocument] [\closecharacter]
\definesymbol [\v!first] [{\symbol[\v!firstpage]}]
\definesymbol [\v!previous] [{\symbol[\v!previouspage]}]
\definesymbol [\v!next] [{\symbol[\v!nextpage]}]
\definesymbol [\v!last] [{\symbol[\v!lastpage]}]
\definesymbol [\v!somewhere] [\gotosomewherecharacter]
\definesymbol [\v!nowhere] [\gonowherecharacter]
\definesymbol [\v!backward] [{\symbol[\v!previouspage]}]
\definesymbol [\v!forward] [{\symbol[\v!nextpage]}]
%D The next two symbols (\symbol[P] and \symbol[S]) are
%D variations in their math counterparts. The following ones
%D {\em do} scale.
% todo : hook this into \textsection
\definesymbol [S] [\getglyph{MathSymbol}{\char"78}]
\definesymbol [P] [\getglyph{MathSymbol}{\char"7B}]
%D These symbols are taken from the Computer Moders Roman
%D symbol set or, when present, from the additional symbols of
%D the American Mathematical Society. Of course one can use
%D his or her own symbols by redefining them.
\def\dogotocharacter#1#2#3%
{\ifx#1\undefined#2\else#3\fi}
\def\gotobegincharacter
{\hbox
{\dogotocharacter\blacktriangleleft
{\setbox0\hbox{\mathematics{\triangleleft}}%
\vrule\!!width.085ex\!!height1.075\ht0\!!depth\dp0
\kern-.11ex\box0}
{\setbox0\hbox{\mathematics{\blacktriangleleft}}%
\setbox2\hbox{\vrule\!!height\ht0\!!depth\dp0\!!width.25ex}%
\hbox{\lower.03ex\box2\kern-.35ex\box0}}}}
\def\gotoendcharacter
{\hbox
{\dogotocharacter\blacktriangleright
{\setbox0\hbox{\mathematics{\triangleright}}%
\copy0\kern-.11ex
\vrule\!!width.085ex\!!height1.075\ht0\!!depth\dp0}
{\setbox0\hbox{\mathematics{\blacktriangleright}}%
\setbox2\hbox{\vrule\!!height\ht0\!!depth\dp0\!!width.25ex}%
\hbox{\box0\kern-.35ex\lower.03ex\box2}}}}
\def\gobackwardcharacter
{\mathematics{\dogotocharacter\blacktriangleright\triangleleft\blacktriangleleft}}
\def\goforwardcharacter
{\mathematics{\dogotocharacter\blacktriangleright\triangleright\blacktriangleright}}
\def\gonowherecharacter
{\mathematics{\bullet}}
%\def\gotosomewherecharacter% {} permits ^\...
% {{\hbox{\hsmash{\gobackwardcharacter}\goforwardcharacter}}}
\def\gotosomewherecharacter
{{\hbox{\hsmash{\symbol[\v!previous]}\symbol[\v!next]}}}
\unexpanded\def\closecharacter
{\dogotocharacter\boxtimes
{\ruledhbox{\mathematics{\times}}}
{\mathematics{\boxtimes}}}
\def\goforjumpcharacter
{\hbox{\goforwardcharacter \kern-.5em\goforwardcharacter}}
\def\gobackjumpcharacter
{\hbox{\gobackwardcharacter\kern-.5em\gobackwardcharacter}}
%D The next two symbols are for Daniel Flipo:
\definesymbol [Numero] [N\high{\nocap{o}\kern.2em}]
\definesymbol [numero] [n\high{\nocap{o}\kern.2em}]
\def\Numero{\symbol[Numero]}
\def\numero{\symbol[numero]}
\protect \endinput
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