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- % File: MF Inputs sromanu.mf
- % Author: Pierre A. MacKay
- % Internet: mackay@cs.washington.edu
- % Date: June 25, 1991
- %
- % This for the SLITeX fonts: lcmss8, lcmssb8, lcmssi8.
- % All characters in romanu.mf except I are generated
- % A special I with slab serifs is then substituted for the
- % normal, confusing, sans-serif I of cmss* fonts.
- % Based on the macros in the METAFONTbook, Appendix E,
- % page 307 & 312. Just as in the case of the iff
- % macro, this depends on the expectation that every
- % character program will end with endchar.
-
- string currenttitle;
- def exclude_I expr t =
- currenttitle:= t;
- if t = "The letter I" : let next_ = lose_it_
- else: let next_ = use_it_ fi; next_ enddef;
- % Add _ to the macro names used by iff to avoid confusion.
- def use_it_ = relax; enddef;
- def lose_it_ = let endchar = fi; let ; = fix_ semi_
- if false: enddef;
- let cmchar = exclude_I;
- input romanu
- let cmchar=relax;
-
- % Uppercase I provided by Pierre A. MacKay, in June l986.
- % The I has slab serifs based on the proportions of
- % the upper and lower horizontals of upper case E.
-
- cmchar "The letter I";
- beginchar("I",max(6u#,4u#+cap_stem#),cap_height#,0);
- italcorr cap_height#*slant-.25u#;
- adjust_fit(cap_serif_fit#,cap_serif_fit#);
- pickup tiny.nib; pos1(cap_stem,0); pos2(cap_stem,0);
- lft x1l=lft x2l=hround(.5w-.5cap_stem); top y1=h; bot y2=0;
- filldraw stroke z1e--z2e; % stem
- pickup crisp.nib; % arms based on proportions of uppercase E
- pos3(slab,90); pos4(slab if not serifs:+2stem_corr fi,-90);
- x3=x4=x1; top y3r=h; bot y4r=0;
- pos5(hair,0); pos6(hair,0); % top and bottom right arms
- rt x5r=rt x6r=hround(w-u);
- pos7(hair,180); pos8(hair,180); % top and bottom left arms
- lft x7r=lft x8r=hround(u);
- y5=y7=good.y(y3l-beak)-eps; % beak in case we ever want a beaked serif!
- y6=y8=good.y(y4l+beak)+eps; % watch that this doesn't get too heavy
- arm(3,5,a,darkness,jut); arm(3,7,b,darkness,jut); % top left and right arms
- arm(4,6,c,darkness,jut); arm(4,8,d,darkness,jut); % bottom left and right
- if serifs: dish_serif(1,2,a,1/3,1.05cap_jut,b,1/3,1.05cap_jut); % upper serif
- dish_serif(2,1,c,1/3,1.05cap_jut,d,1/3,1.05cap_jut); fi % lower serif
- math_fit(0,.5ic#); penlabels(1,2,3,4,5,6,7,8); endchar;
-
- endinput;
-