font_identifier "LINEW"; font_size design_size * pt#;
font_coding_scheme:="LATEX LINE";
mode_setup;
nominal_width = 2; % use double-width lines
input c-line;
%arrow dimensions:
arrowlen#=.6*qqw#; arrowht#=.22*qqw#; arrowcurve#=.1*arrowht#;
input line;
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