%D \module
%D   [       file=mp-form.mpiv,
%D        version=2011.10.14,
%D          title=\CONTEXT\ \METAPOST\ graphics,
%D       subtitle=form support,
%D         author=Hans 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 licen-en.pdf for
%C details.

% The graph package will be replaced by our own variant using
% MetaPost 2 features and textext.

if known context_form : endinput ; fi ;

boolean context_form ; context_form := true ;

string Fmfont_ ; Fmfont_ := "crap" ;

% The following function accept a number or string that can be
% converted to a number by \LUA. The first argument is a format
% where @ can be used instead of %. The number is typeset in math
% mode and @3e is converted into @.3e.

vardef mfun_format_number(expr fmt, i) =
    "\ctxlua{metapost.formatnumber('" & fmt & "'," & if string i : i else : decimal i fi & ")}"
enddef
