2 % autometric.mf -- administrative MF routines
4 % source file of the Feta (Font-En-Tja) pretty-but-neat music font
6 % (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
7 % Jan Nieuwenhuizen <jan@digicash.com>
9 % these macros help create ascii logging output
10 % to automate generation of lily tables and tex backend
11 % The output should be parsed by the mf-to-table script
14 def fet_beginfont(expr name,size) =
15 font_identifier:=name&decimal size;
17 message "@{font@:"&name&"@:"&decimal size&"@}";
21 def fet_endfont(expr name) =
22 message "@{tnof@:"&name&"@}";
27 def fet_begingroup(expr name) =
28 message "@{group@:"&name&"@}";
33 def fet_endgroup(expr name) =
35 message "@{puorg@:"&name&"@}";
39 def autometric_output_char=
40 message "@{char@:"&charnamestr&"@:"&decimal charcode&"@:"&decimal charbp&"@:"&decimal charwd&"@:"&decimal chardp&"@:"&decimal charht&"@:"&idstr&"@:"&texstr&"@}";
43 def hround_pixels(expr sharped) = hround(sharped * hppp) enddef;
44 def vround_pixels(expr sharped) = vround(sharped * vppp) enddef;
48 def tand(expr alpha) =
49 (sind alpha/cosd alpha)
52 %breapth, width, depth, height
54 def set_char_box(expr b_sharp, w_sharp, d_sharp,h_sharp) =
55 save scharbp, scharht, scharwd, schardp;
57 % some paranoia if someone calls set_char_box(charwd, charbp, .. )
68 w := hround(w_sharp *hppp);
69 b := hround(b_sharp *hppp);
70 h := hround(h_sharp *vppp);
71 d := hround(d_sharp *vppp);
74 def no_dimen_beginchar(expr c) =
76 charcode := if known c: byte c else: 0; fi;
81 scantokens extra_beginchar;
86 % starts just as plain mf's beginchar:
90 % id index in lily's table
91 % texstr name of tex macro in lily's table and tex backend
93 % the dims are uninitialised; you should use set_char_box manually.
94 def fet_beginchar(expr name, id_lit, texstr_lit) =
95 save texstr, idstr, charnamestr;
98 string texstr, idstr, charnamestr;
103 no_dimen_beginchar(incr code) name;
107 def makebox_with_breapth(text r) =
108 for y = -d, 0, h: r((-b, y),(w,y)); endfor
109 for x = -b, 0, w: r((x, -d),(x, h)); endfor
113 % override plain endchar. We want a different box.
115 def breapth_endchar =
116 scantokens extra_endchar;
117 if proofing > 0: makebox_with_breapth(proofrule); fi
118 chardx := 10*(w + b);
124 autometric_output_char;