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-rw-r--r--language/vietnamese/vntex/fonts/source/vntex/vnr/vnbase.mf954
1 files changed, 0 insertions, 954 deletions
diff --git a/language/vietnamese/vntex/fonts/source/vntex/vnr/vnbase.mf b/language/vietnamese/vntex/fonts/source/vntex/vnr/vnbase.mf
deleted file mode 100644
index a87e32ce6c..0000000000
--- a/language/vietnamese/vntex/fonts/source/vntex/vnr/vnbase.mf
+++ /dev/null
@@ -1,954 +0,0 @@
-% Copyright 2003-2005 Han The Thanh <hanthethanh@gmx.net>.
-% This file is part of vntex. License: LPPL, version 1.3 or newer,
-% according to http://www.latex-project.org/lppl.txt
-
-% basic macros for all vnr fonts
-
-% get_acc_pos := 1;
-% gen_t5_supp := 1;
-
-if known get_acc_pos or known gen_t5_supp:
- mag := 100.375;
-fi
-
-% define which letters should be generated when testing > 0
-def testchars =
-% a.acute_,
-% a.dot_,
-% a.grave_,
-% a.hook_,
-% a.tilde_,
-% a.breve_,
-% a.breve_.acute_,
-% a.breve_.dot_,
-% a.breve_.grave_,
-% a.breve_.hook_,
-% a.breve_.tilde_,
-% a.circumflex_,
-% a.circumflex_.acute_,
-% a.circumflex_.dot_,
-% a.circumflex_.grave_,
-% a.circumflex_.hook_,
-% a.circumflex_.tilde_,
-% d.bar_,
-% e.acute_,
-% e.dot_,
-% e.grave_,
-% e.hook_,
-% e.tilde_,
-% e.circumflex_,
-% e.circumflex_.acute_,
-% e.circumflex_.dot_,
-% e.circumflex_.grave_,
-% e.circumflex_.hook_,
-% e.circumflex_.tilde_,
-% i.acute_,
-% i.dot_,
-% i.grave_,
-% i.hook_,
-% i.tilde_,
-% o.acute_,
-% o.dot_,
-% o.grave_,
-% o.hook_,
-% o.tilde_,
-% o.circumflex_,
-% o.circumflex_.acute_,
-% o.circumflex_.dot_,
-% o.circumflex_.grave_,
-% o.circumflex_.hook_,
-% o.circumflex_.tilde_,
-o.horn_,
-o.horn_.acute_,
-o.horn_.dot_,
-o.horn_.grave_,
-o.horn_.hook_,
-o.horn_.tilde_,
-% u.acute_,
-% u.dot_,
-% u.grave_,
-% u.hook_,
-% u.tilde_,
-u.horn_,
-u.horn_.acute_,
-u.horn_.dot_,
-u.horn_.grave_,
-u.horn_.hook_,
-u.horn_.tilde_,
-% y.acute_,
-% y.dot_,
-% y.grave_,
-% y.hook_,
-% y.tilde_,
-last
-enddef;
-
-C.l.last := 256;
-C.u.last := 256;
-
-% copied from plain.mf to make metapost run with ec sources, as mfplain.mp is not
-% up-to-date with plain.mf
-vardef whatever = save ?; ? enddef;
-def killtext text t = enddef;
-
-
-if known testing: % turn testing on
-% proofcolor := .4[white, black];
- defaultfont := "Times-Roman";
- defaultscale := 1;
- prologues := 1;
- show_labels := 1;
- if known gensize:
- mag := 20/gensize;
- else:
- mag := 2;
- fi
-fi
-
-if unknown exbase:
- input exbase;
-fi
-
-if unknown displaying:
- displaying := 0;
-fi
-
-let vnchar = ecchar;
-let cmchar = ecchar;
-
-input vncode; % character encoding
-
-if known testing:
-string inputstr;
-forsuffixes _u =
- A_fam_used, D_fam_used, E_fam_used, I_fam_used, O_fam_used, U_fam_used, Y_fam_used,
- a_fam_used, d_fam_used, e_fam_used, i_fam_used, o_fam_used, u_fam_used, y_fam_used:
- boolean _u;
- _u := false;
-endfor;
-
-def test_fam(text _f, _u, _c) =
- n_ := 0;
- if not _u:
- forsuffixes $ = _f(,) 257:
- n_ := n_ + 1;
- if (($ < 32) or ($ > 127)) % check for vn chars only
- and ($ = C.u._c) or ($ = C.l._c):
- _u := true;
- fi
- endfor
- fi
-enddef;
-
-forsuffixes _c = testchars:
- test_fam(A_fam)(A_fam_used)(_c);
- test_fam(D_fam)(D_fam_used)(_c);
- test_fam(E_fam)(E_fam_used)(_c);
- test_fam(I_fam)(I_fam_used)(_c);
- test_fam(O_fam)(O_fam_used)(_c);
- test_fam(U_fam)(U_fam_used)(_c);
- test_fam(Y_fam)(Y_fam_used)(_c);
-
- test_fam(a_fam)(a_fam_used)(_c);
- test_fam(d_fam)(d_fam_used)(_c);
- test_fam(e_fam)(e_fam_used)(_c);
- test_fam(i_fam)(i_fam_used)(_c);
- test_fam(o_fam)(o_fam_used)(_c);
- test_fam(u_fam)(u_fam_used)(_c);
- test_fam(y_fam)(y_fam_used)(_c);
-
- test_fam(U_horn_fam)(U_fam_used)(_c);
- test_fam(u_horn_fam)(u_fam_used)(_c);
-endfor
-
-def input_ur_fam =
- inputstr := "";
- if A_fam_used: inputstr := inputstr & "input vnuar; "; fi
- if D_fam_used: inputstr := inputstr & "input vnudr; "; fi
- if E_fam_used: inputstr := inputstr & "input vnuer; "; fi
- if I_fam_used: inputstr := inputstr & "input vnuir; "; fi
- if O_fam_used: inputstr := inputstr & "input vnuor; "; fi
- if U_fam_used: inputstr := inputstr & "input vnuur; "; fi
- if Y_fam_used: inputstr := inputstr & "input vnuyr; "; fi
- scantokens(inputstr);
-enddef;
-
-def input_lr_fam =
- inputstr := "";
- if a_fam_used: inputstr := inputstr & "input vnlar; "; fi
- if d_fam_used: inputstr := inputstr & "input vnldr; "; fi
- if e_fam_used: inputstr := inputstr & "input vnler; "; fi
- if i_fam_used: inputstr := inputstr & "input vnlir; "; fi
- if o_fam_used: inputstr := inputstr & "input vnlor; "; fi
- if u_fam_used: inputstr := inputstr & "input vnlur; "; fi
- if y_fam_used: inputstr := inputstr & "input vnlyr; "; fi
- scantokens(inputstr);
-enddef;
-
-def input_sc_fam =
- inputstr := "";
- if a_fam_used: inputstr := inputstr & "input vnuar; "; fi
- if d_fam_used: inputstr := inputstr & "input vnudr; "; fi
- if e_fam_used: inputstr := inputstr & "input vnuer; "; fi
- if i_fam_used: inputstr := inputstr & "input vnuir; "; fi
- if o_fam_used: inputstr := inputstr & "input vnuor; "; fi
- if u_fam_used: inputstr := inputstr & "input vnuur; "; fi
- if y_fam_used: inputstr := inputstr & "input vnuyr; "; fi
- scantokens(inputstr);
-enddef;
-
-def input_li_fam =
- inputstr := "";
- if a_fam_used: inputstr := inputstr & "input vnlai; "; fi
- if d_fam_used: inputstr := inputstr & "input vnldi; "; fi
- if e_fam_used: inputstr := inputstr & "input vnlei; "; fi
- if i_fam_used: inputstr := inputstr & "input vnlii; "; fi
- if o_fam_used: inputstr := inputstr & "input vnloi; "; fi
- if u_fam_used: inputstr := inputstr & "input vnlui; "; fi
- if y_fam_used: inputstr := inputstr & "input vnlyi; "; fi
- scantokens(inputstr);
-enddef;
-
-% def endchar =
-% scantokens extra_endchar;
-% if proofing>0: makebox(proofrule); fi
-% chardx:=w; % desired width of the character in pixels
-% shipit;
-% endgroup enddef;
-
-% def makebox(text rule) =
-% for y=0,asc_height,body_height,x_height,bar_height,-desc_depth,-body_depth:
-% rule((l,y)t_,(r,y)t_); endfor % horizontals
-% for x=l,r: rule((x,-body_depth)t_,(x,body_height)t_); endfor % verticals
-% for x=u*(1+floor(l/u)) step u until r-1:
-% rule((x,-body_depth)t_,(x,body_height)t_); endfor % more verticals
-% if charic<>0:
-% rule((r+charic*pt,h.o_),(r+charic*pt,.5h.o_)); fi % italic correction
-% enddef;
-
-def bboxcolor = red enddef;
-def bboxrule(expr w,z) =
- begingroup interim linecap:=squared;
- draw w..z withpen pencircle scaled (.4/bp_per_pixel) withcolor bboxcolor;
- endgroup
-enddef;
-
-def makebox(text rule) =
- for y=0,(cap_height+acc_height),
- asc_height,body_height,x_height,bar_height,-desc_depth,-body_depth:
- rule((l,y),(r,y)); endfor % horizontals
-
- for y=-3.5pt,8.5pt,(x_height+acc_height):
- rule((l-4pt,y),(l-2pt,y)); endfor
- for x=l,r: rule((x,-body_depth),(x,body_height)); endfor % verticals
- for x=u*(1+floor(l/u)) step u until r-1:
- rule((x,-body_depth),(x,body_height)); endfor % more verticals
-
- for x=0.5w:
- rule((x,-body_depth-1pt),(x,-body_depth-1.5pt));
- rule((x,cap_height+acc_height+1pt),(x,cap_height+acc_height+1.5pt));
- endfor
- if charic<>0:
- rule((r+charic*pt,h.o_),(r+charic*pt,.5h.o_)); fi % italic correction
- enddef;
-
-def makebbox(text rule) =
- for x=0,w: bboxrule((x,-d),(x,h)); endfor % verticals
- for y = 0,h,-d: bboxrule((0, y), (w, y)); endfor
-enddef;
-
-def endchar =
- scantokens extra_endchar;
- if proofing>0:
-% makebox(proofrule);
- makebbox(proofrule);
- fi
- shipit;
-endgroup
-enddef;
-
-fi % known testing
-
-% if (known show_labels) and (known testing):
-% if (known show_labels):
-% def makebox(text r) =
-% for y = 0, h, -d:
-% r((0, y), (w, y));
-% endfor % horizontals
-% for x = 0, w:
-% r((x, -d), (x, h));
-% endfor % verticals
-% enddef;
-% def draw_box(expr x, y, w, h, p) =
-% pickup pencircle scaled p;
-% draw (x, y) -- (x, y + h) -- (x + w, y + h) -- (x + w, y) -- (x, y);
-% enddef;
-% else:
-% def makebox(text r) = enddef;
-% def draw_box(expr x, y, w, h) = enddef;
-% def penlabels(text r) = enddef;
-% proofcolor := black;
-% fi;
-
-numeric case_;
-small := 0;
-capital := 1;
-smallcap := 2;
-
-def set_lowercase =
- case_ := small;
- def vncase = l enddef;
-enddef;
-
-def set_uppercase =
- case_ := capital;
- def vncase = u enddef;
-enddef;
-
-def set_smallcap =
- case_ := smallcap;
- def vncase = l enddef;
-enddef;
-
-def casename expr _name =
-if not known testing:
- "The " &
- if case_ = capital:
- "capital"
- elseif case_ = small:
- "small"
- else:
- "smallcap"
- fi &
- " letter " & _name
-fi
-enddef;
-
-def ifknown(suffix _a)(expr _b) =
- if known _a: _a
- else: _b
- fi
-enddef;
-
-def tand(expr _d) =
- (sind(_d)/cosd(_d))
-enddef;
-
-def vn_code(suffix _n) =
- C.vncase._n
-enddef;
-
-def vn_pic(suffix _n) =
- vn.vncase._n.pic
-enddef;
-
-def vn_width(suffix _n) =
- vn.vncase._n.w#
-enddef;
-
-def vn_height(suffix _n) =
- vn.vncase._n.h#
-enddef;
-
-def vn_top(suffix _n) =
- vn.vncase._n.top#
-enddef;
-
-def vn_depth(suffix _n) =
- vn.vncase._n.d#
-enddef;
-
-def vn_bot(suffix _n) =
- vn.vncase._n.bot#
-enddef;
-
-def vn_ic(suffix _n) =
- vn.vncase._n.ic#
-enddef;
-
-def vn_left_adj(suffix _n) =
- vn.vncase._n.left_adj#
-enddef;
-
-def vn_right_adj(suffix _n) =
- vn.vncase._n.right_adj#
-enddef;
-
-def vn_gap(suffix _n) =
- vn.vncase._n.gap#
-enddef;
-
-def vn_join_xp(suffix _n) =
- vn.vncase._n.join.x
-enddef;
-
-def vn_join_x(suffix _n) =
- vn.vncase._n.join.x#
-enddef;
-
-def vn_rt(suffix _n) =
- vn.vncase._n.rt#
-enddef;
-
-def vn_dot_shift_y(suffix _n) =
- vn.vncase._n.dot_shift.y#
-enddef;
-
-def vn_ac_top =
- vn.vncase.accent_top#
-enddef;
-
-def vn_double_ac_top =
- vn.vncase.double_accent_top#
-enddef;
-
-let vn_left_side = vn_join_x;
-
-def vn_right_side(suffix _a) =
- (vn_width(_a) - vn_left_side(_a))
-enddef;
-
-def align_left(suffix _a, _b) =
- 0
-enddef;
-
-def vn_align_join(suffix _a, _b) =
- (vn_join_x(_a) - vn_join_x(_b))
-enddef;
-
-def vn_align_right(suffix _a, _b) =
- (vn_width(_a) - vn_width(_b))
-enddef;
-
-def define_accent_dimens(suffix _a)(expr _w, _h) =
- vn_width(_a) := _w;
- vn_height(_a) := _h;
- vn_top(_a) := vn_height(_a) + vn_letter_height# + vn_accent_gap#;
- vn_max_ac_top# := max(vn_max_ac_top#, vn_top(_a));
-enddef;
-
-def vn_set_ac_join(suffix _a)(expr _xp, _x, _rt) =
- vn_join_xp(_a) := _xp;
- vn_join_x(_a) := _x;
- vn_rt(_a) := _rt;
- if known show_labels:
- makelabel("j", (vn_join_xp(_a), 0));
- makelabel("J", (hp(vn_join_x(_a)), 0));
- makelabel("r", (hp(vn_width(_a)), vp(vn_rt(_a))));
- makelabel("o", (0,0));
- fi
-enddef;
-
-def set_letter_join(suffix _l)(expr _xp, _x) =
- vn_join_xp(_l) := _xp;
- vn_join_x(_l) := _x;
- if known show_labels:
- makelabel("j", (vn_join_xp(_l), vp(vn_height(_l))));
- makelabel("J", (hp(vn_join_x(_l)), vp(vn_height(_l))));
- fi
-enddef;
-
-def set_adj_gap(suffix _l, _a) =
- adj_gap# := ifknown(vn_gap(_l._a), ifknown(vn_gap(_a), 0));
-enddef;
-
-def get_join_xp(suffix _l, _a) =
- ifknown(vn_join_xp(_l._a), vn_join_xp(_l))
-enddef;
-
-def get_join_x(suffix _l, _a) =
- ifknown(vn_join_x(_l._a), vn_join_x(_l))
-enddef;
-
-def get_top(suffix _a) =
- max(vn_top(_a) + adj_gap#,
- if vn_top(_a) <= vn_ac_top:
- vn_ac_top
- else:
- vn_double_ac_top
- fi)
-enddef;
-
-def set_shift(suffix _l, _a) =
- shift.y := vp(vn_top(_a) - vn_height(_a));
- shift.x := get_join_xp(_l, _a) - vn_join_xp(_a) + slant*shift.y;
- shift.y# := vn_top(_a) - vn_height(_a);
- shift.x# := get_join_x(_l, _a) - vn_join_x(_a) + slant*shift.y#;
-enddef;
-
-def set_ic(suffix _l, _a) =
- italcorr max(vn_ic(_l),
- vn_width(_a) + shift.x#
- + slant*(vn_rt(_a) + shift.y#)
- - w# + .5u#);
-enddef;
-
-def set_lic(suffix _l) =
- italcorr vn_ic(_l);
-enddef;
-
-def set_fit(suffix _l) =
- adjust_fit(vn_left_adj(_l), vn_right_adj(_l));
-enddef;
-
-C.l.idot.dot_ = 256;
-C.u.idot.dot_ = 256; % to avoid error when calling set_dot_shift(idot)
-
-def set_dot_shift(suffix _l) =
- shift.y := - vp(ifknown(vn_dot_shift_y(_l), vn_bot(dot_)));
- shift.x := get_join_xp(_l, dot_) - vn_join_xp(dot_) + slant*shift.y;
-enddef;
-
-% vardef xpos@#(expr b ,d) =
-% pos@#(max(currentbreadth + eps, b), d)
-% enddef;
-vardef pos@#(expr b,d) =
- if known b: if b<=currentbreadth:
- (x@#r-x@#l,y@#r-y@#l)=(eps,0) rotated d;
- else: (x@#r-x@#l,y@#r-y@#l)=(b-currentbreadth,0) rotated d; fi
- else: (x@#r-x@#l,y@#r-y@#l)=(b-currentbreadth,0) rotated d; fi
- x@#=.5(x@#l+x@#r); y@#=.5(y@#l+y@#r)
-enddef;
-
-def hp(expr _x) =
- hround(_x*hppp)
-enddef;
-
-def vp(expr _y) =
- vround(_y*vppp)
-enddef;
-
-def begin_pic(suffix _n) =
- begingroup
- clearxy;
- clearit;
- clearpen;
- picture vn.vncase._n.pic;
- vn.vncase._n.pic :=
- begingroup
-enddef;
-
-def end_pic =
- if known testing:
-% makebox(proofrule);
- makebbox(proofrule);
- fi
- currentpicture % continuation of `vn_pic(_n) :='
- endgroup;
- endgroup
-enddef;
-
-def set_letter_dimens(suffix _l)(expr _w, _h, _d, _ic, _lft, _rt) =
- set_char_dimens(_w, _h, _d);
- vn_width(_l) := _w;
- vn_height(_l) := _h;
- vn_depth(_l) := _d;
- vn_ic(_l) := _ic;
- vn_left_adj(_l) := _lft;
- vn_right_adj(_l) := _rt;
- adjust_fit(_lft, _rt);
-enddef;
-
-def begin_accent(suffix _a) =
- begin_pic(_a);
- set_char_dimens(vn_width(_a), vn_height(_a), 0)
-enddef;
-let end_accent = end_pic;
-
-let begin_letter = begin_pic;
-let end_letter = end_pic;
-
-def vn_sl_shift(suffix _a) =
-% .5slant*(adj_y# + vn_height(_a))
- 0
-enddef;
-
-def set_char_dimens(expr _w, _h, _d) =
- charwd := _w;
- charht := _h;
- chardp := _d;
- w := hp(charwd);
- h := vp(charht);
- d := vp(chardp);
- charic := 0;
-enddef;
-
-def abs_round(expr _e) =
- if _e < 0:
- ceiling(_e - .5)
- else:
- floor(_e + .5)
- fi
-enddef;
-
-def write_shift_xy(suffix _l, _a)(expr _sx, _sy) =
- if known get_acc_pos and known bp_per_pixel:
- message "CC " &
- if case_ = capital:
- "capital"
- elseif case_ = small:
- "small"
- else:
- "smallcap"
- fi & " " &
- str _l & " " &
- str _a & " " &
- decimal(abs_round(_sx*bp_per_pixel*10/designsize)) & " " &
- decimal(abs_round(_sy*bp_per_pixel*10/designsize));
- fi
-enddef;
-
-
-def define_double_accent(suffix _a, _b)(expr _adj_x, _adj_y) =
- shift.y# := _adj_y + vn_height(_a);
- shift.x# := _adj_x + slant*shift.y#;
- define_accent_dimens(_a._b, vn_width(_a), vn_height(_b) + shift.y#);
- begin_accent(_a._b);
- currentpicture := vn_pic(_a);
- addto currentpicture also vn_pic(_b)
- shifted (hp(shift.x#), vp(shift.y#));
- write_shift_xy(_a, _b)(hp(shift.x#), vp(shift.y#));
- vn_set_ac_join(_a._b, vn_join_xp(_a), vn_join_x(_a),
- if vn_width(_a) + slant*vn_rt(_a) >
- vn_width(_b) + shift.x# + slant*(vn_rt(_b) + shift.y#):
- vn_rt(_a)
- else:
- vn_rt(_b) + shift.y#
- fi);
- end_accent;
-enddef;
-
-if not known testing:
-vardef used_char(expr _code) = true enddef;
-else:
-vardef used_char(expr _code) =
- boolean _is_used;
- _is_used := false;
- forsuffixes $ = testchars:
- if _code = vn_code($):
- _is_used := true;
- fi;
- endfor;
- _is_used
-enddef;
-fi
-
-def define_vnaccent(expr _c)(suffix _a) =
- beginchar(_c, vn_width(_a), vn_height(_a), 0);
- currentpicture := vn_pic(_a);
- endchar
-enddef;
-
-def define_vnchar(suffix _l, _a) =
-if used_char(vn_code(_l._a)):
- set_adj_gap(_l, _a); % set adj_gap#
- beginchar(vn_code(_l._a),
- vn_width(_l),
- get_top(_a),
- vn_depth(_l));
- set_shift(_l, _a); % set shift.x, shift.y, shift.x# and shift.y#
- set_ic(_l, _a); % call italcorr
- set_fit(_l); % call adjust_fit
- currentpicture := vn_pic(_l);
- addto currentpicture also vn_pic(_a)
- shifted (shift.x, shift.y + vp(adj_gap#));
- write_shift_xy(_l, _a)
- (shift.x + hp(vn_left_adj(_l)) + letter_fit, shift.y + vp(adj_gap#));
-% message "vn_left_adj: " & decimal hp(vn_left_adj(_l));
-% message "letter_fit: " & decimal letter_fit;
- endchar
-fi
-enddef;
-
-def define_vnchar_dot(suffix _l) =
-if used_char(vn_code(_l.dot_)):
- % test for the small i letter with dot
- if (case_ = small) and (vn_code(_l.dot_) = vn_code(i.dot_)):
- beginchar(vn_code(i.dot_),
- vn_width(idot),
- vn_height(idot),
- vn_bot(dot_));
- set_dot_shift(idot); % set shift.x and shift.y
- set_lic(idot); % call italcorr
- set_fit(idot); % call adjust_fit
- currentpicture := vn_pic(idot);
- else:
- beginchar(vn_code(_l.dot_),
- vn_width(_l),
- vn_height(_l),
- ifknown(vn_depth(_l.dot_), max(vn_bot(dot_), vn_depth(_l))));
- set_dot_shift(_l);
- set_lic(_l);
- set_fit(_l);
- currentpicture := vn_pic(_l);
- fi
- addto currentpicture also vn_pic(dot_)
- shifted (shift.x, shift.y);
- write_shift_xy(_l, dot_)
- (shift.x + hp(vn_left_adj(_l)) + letter_fit, shift.y);
- endchar
-fi
-enddef;
-
-def define_vnchar_dot_ac(suffix _l, _a) =
-if used_char(vn_code(_l._a.dot_)):
- set_adj_gap(_l, _a);
- beginchar(vn_code(_l._a.dot_),
- vn_width(_l),
- get_top(_a),
- max(vn_bot(dot_), vn_depth(_l)));
- set_shift(_l, _a);
- set_ic(_l, _a);
- set_fit(_l);
- currentpicture := vn_pic(_l);
- addto currentpicture also vn_pic(_a)
- shifted (shift.x, shift.y + vp(adj_gap#));
- set_dot_shift(_l);
- addto currentpicture also vn_pic(dot_)
- shifted (shift.x, shift.y);
- write_shift_xy(_l._a, dot_)
- (shift.x + hp(vn_left_adj(_l)) + letter_fit, shift.y);
- endchar
-fi
-enddef;
-
-def define_vnchar_horn(suffix _l) =
-if used_char(vn_code(_l.horn_)):
- select_horn(_l);
- set_shift_horn(_l);
- update_horn_width(_l);
- beginchar(vn_code(_l.horn_),
- updated_width#,
- vn_top(cur_horn_),
- vn_depth(_l));
- set_ic(_l, cur_horn_);
- set_fit(_l);
- select_letter_u(_l);
- addto currentpicture also vn_pic(cur_horn_)
- shifted (shift.x, shift.y);
- endchar
-fi
-enddef;
-
-def select_horn(suffix _l) = % set cur_horn_ to uhorn_ or ohorn_ according to _l
- if vn_code(_l.horn_) = vn_code(u.horn_):
- def cur_horn_ = uhorn_ enddef;
- else:
- def cur_horn_ = ohorn_ enddef;
- fi
-enddef;
-
-def update_horn_width(suffix _l) =
- _du := (shift.x + hp(vn_width(cur_horn_))) -
- (hp(vn_width(_l) + vn_left_adj(_l) + vn_right_adj(_l)) + 2letter_fit) -
- slant*(shift.y + vp(vn_height(cur_horn_)));
- updated_width# := vn_width(_l)
- if _du > .5u:
- + .5u#*floor(_du/.5u)
- fi
-enddef;
-
-def set_shift_horn(suffix _l) =
- shift.y := vp(vn_bot(cur_horn_));
- shift.x := vn_join_xp(_l.horn_join) - vn_join_xp(cur_horn_) +
- slant*(shift.y);
-enddef;
-
-def select_letter_u(suffix _l) =
- % test for the serif capital u letter with horn
- if serifs and (case_ <> small) and (vn_code(_l.horn_) = vn_code(u.horn_)):
- % use the modified "U" (without right part of the right serif)
- currentpicture := vn_pic(Uhorn)
- else:
- currentpicture := vn_pic(_l)
- fi
-enddef;
-
-def define_vnchar_horn_ac(suffix _l, _a) =
-if used_char(vn_code(_l.horn_._a)):
- select_horn(_l); % set cur_horn_ to uhorn_ or ohorn_ according to _l
- set_adj_gap(_l, _a);
- set_shift_horn(_l);
- update_horn_width(_l);
- beginchar(vn_code(_l.horn_._a),
- updated_width#,
- get_top(_a),
- vn_depth(_l));
- set_ic(_l, cur_horn_);
- set_fit(_l);
- select_letter_u(_l);
- addto currentpicture also vn_pic(cur_horn_)
- shifted (shift.x, shift.y);
- set_shift(_l.horn_, _a);
-% if serifs and (vn_code(_l.horn_._a) = vn_code(o.horn_.grave_)):
-% shift.x := shift.x + max(0, u - .3stem);
-% fi
- set_ic(_l, _a);
- addto currentpicture also vn_pic(_a)
- shifted (shift.x, shift.y + vp(adj_gap#));
- write_shift_xy(_l.horn_, _a)
- (shift.x + hp(vn_left_adj(_l)) + letter_fit, shift.y + vp(adj_gap#));
- endchar
-fi
-enddef;
-
-def define_vnchar_horn_dot(suffix _l) =
-if used_char(vn_code(_l.horn_.dot_)):
- select_horn(_l); % set cur_horn_ to uhorn_ or ohorn_ according to _l
- set_shift_horn(_l);
- update_horn_width(_l);
- beginchar(vn_code(_l.horn_.dot_),
- updated_width#,
- vn_top(cur_horn_),
- max(vn_bot(dot_), vn_depth(_l)));
- set_ic(_l, cur_horn_);
- set_fit(_l);
- select_letter_u(_l);
- addto currentpicture also vn_pic(cur_horn_)
- shifted (shift.x, shift.y);
- set_dot_shift(_l);
-% if serifs and (vn_tt_corr = 0) and (vn_code(_l.horn_) = vn_code(o.horn_)):
-% shift.x := shift.x + .1dot_size;
-% fi
- addto currentpicture also vn_pic(dot_)
- shifted (shift.x, shift.y);
- write_shift_xy(_l.horn_, dot_)
- (shift.x + hp(vn_left_adj(_l)) + letter_fit, shift.y);
- endchar
-fi
-enddef;
-
-% hook_arc is based on super_arc from exbase.mf
-vardef hook_arc.r(suffix $, $$)(expr _superness, _swap) =
- pair center, corner;
- if (y$ = y$r) or _swap:
- center = (x$$r, y$r);
- corner = (x$r, y$$r);
- else:
- center = (x$r, y$$r);
- corner = (x$$r, y$r);
- fi
- z$.r{corner - z$.r} ... _superness[center, corner]{z$$.r - z$.r} ...
- {z$$.r - corner}z$$.r
-enddef;
-
-vardef hook_arc.l(suffix $, $$)(expr _superness, _swap) =
- pair center, corner;
- if (y$ = y$r) or _swap:
- center = (x$$l, y$l);
- corner = (x$l, y$$l);
- else:
- center = (x$l, y$$l);
- corner = (x$$l, y$l);
- fi
- z$l{corner - z$l} ... _superness[center, corner]{z$$l - z$l} ...
- {z$$l - corner}z$$l
-enddef;
-
-% vn_hook_bulb is based on bulb from exbase.mf
-def vn_hook_bulb(suffix $, $$, $$$) =
- z$$$r = z$$r;
- path_.l := z$l{x$$r - x$r, 0} ... {0, y$$r - y$r}z$$l;
- filldraw path_.l -- z$$r{0, y$r - y$$r} ... {x$r - x$$r, 0}z$r -- cycle; % link
- path_.r := z$$$l{0, y$r - y$$r} .. z$$$r{0, y$$r - y$r}; % near - circle
- filldraw subpath(0, xpart(path_.r intersectiontimes path_.l)) of path_.r
- -- z$$r{0, y$$r - y$r} .. cycle; % bulb
-enddef;
-
-def vn_draw_horn(suffix _a)(expr _dotsize, _horn_stem, _horn_bot_theta) =
- cur_dotsize# := _dotsize;
- cur_stem# := _horn_stem;
- define_blacker_pixels(cur_dotsize, cur_stem);
- if not square_dots:
- pickup crisp.nib;
- pos4(cur_dotsize, 90);
- top y4r = h;
- x4 = w - .5cur_dotsize;
- pos1(cur_stem, 90);
- pos2(cur_stem, 0);
- pos3(cur_stem, _horn_bot_theta - 90);
- z1r = z4r;
- rt x2r = hround(x4 + .5cur_dotsize) + 2eps;
- lft x3l = 0;
- bot y3r = 0;
- y2 = 1/3[y1, y3];
- y_ := ypart((z1{right} ... z2{down} ... z3)
- intersectiontimes (z4l{right} .. {left}z4r));
- if y_ < 0:
- y_ := 1;
- fi
- filldraw z4r{left} .. subpath (0, y_) of (z4l{right} .. {left}z4r)
- -- cycle; % dot
- filldraw stroke z1e{right} ... z2e{down} ... {left}z3e;
- filldraw z1r--z2r--z4l--cycle;
- penlabels(0, 1, 2, 3, 4);
- vn_set_ac_join(_a, x3, .5cur_stem*sind(_horn_bot_theta),
- h# - .5cur_dotsize#);
- else:
- pickup fine.nib;
- pos4(cur_dotsize, 90);
- top y4r = h;
- x4 = w - .5cur_dotsize;
- pos4'(cur_dotsize, 0);
- z4' = z4;
- dot(4', 4); % squarish dot
- horn_join := max(fine.breadth, floor cur_stem);
- horn_bot := max(fine.breadth, floor .8cur_stem);
- pos0(horn_join, 0);
- pos1(horn_join, 0);
- pos2(horn_bot, 0);
- y0 = y4;
- y1 = y4l;
- x0r = x1r = x4'r;
- lft x2l = 0;
- bot y2r = 0;
- z2' = whatever[z1, z2];
- numeric _vn_bot_width;
- pos2'(_vn_bot_width, -90 + _horn_bot_theta);
- z2l = z2'l;
- filldraw stroke z0e -- z1e .. z2'e; % tail
- penlabels(0, 1, 2', 3, 4);
- vn_set_ac_join(_a, x2', 0, h#);
- fi
- vn_bot(_a) := vn_top(_a) - vn_height(_a);
-enddef;
-
-def set_horn_join(suffix _l)(expr _pl, _pr) =
- select_horn(_l); % set cur_horn_ to uhorn_ or ohorn_ according to _l
- path bot_line;
- pair L, R;
- bot_line := (.5w, vp(vn_bot(cur_horn_))) -- (w, vp(vn_bot(cur_horn_)));
- L := point xpart(bot_line intersectiontimes _pl) of bot_line;
- R := point xpart(bot_line intersectiontimes _pr) of bot_line;
- vn_set_ac_join(_l.horn_join, xpart .5[L, R], 0, 0);
-enddef;
-
-def lig_CGQ_table(expr k) =
- "C" kern k, "G" kern k, "Q" kern k
-enddef;
-
-def end_ligtable = 0 kern 0 enddef;
-
-% define input_lig to generate only char oct"031" from excspl.mf
-def input_lig suffix @# =
- let save_endchar = endchar;
- let endchar = lig_endchar;
- scantokens("input " & str @#);
- relax;
- let endchar = save_endchar;
-enddef;
-
-def lig_endchar =
- if charcode = oct"031":
- save_endchar
- else:
- endgroup
- fi
-enddef;
-
-def generate suffix @# =
- scantokens("input null"); % can't figure out why it's needed
- scantokens("input vn" & substring(2, length(str @#)) of str @#);
-enddef;
-
-endinput;