% Feta (not the Font-En-Tja) music font -- implement noteheads
% This file is part of LilyPond, the GNU music typesetter.
%
-% Copyright (C) 1997--2009 Jan Nieuwenhuizen <janneke@gnu.org>
+% Copyright (C) 1997--2010 Jan Nieuwenhuizen <janneke@gnu.org>
% & Han-Wen Nienhuys <hanwen@xs4all.nl>
% & Juergen Reuter <reuter@ipd.uka.de>
%
%
% LilyPond is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
-% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
test_outlines := 0;
%
save solfa_pen_thick;
-solfa_pen_thick# = 1.75 stafflinethickness#;
+solfa_pen_thick# = 1.3 stafflinethickness#;
define_blacker_pixels (solfa_pen_thick);
save solfa_base_notewidth;
solfa_base_notewidth# := black_notehead_width#;
-solfa_whole_width := whole_notehead_width# / black_notehead_width#;
-solfa_half_width := half_notehead_width# / black_notehead_width#;
+solfa_whole_width := 1.0;
+solfa_half_width := 1.0;
solfa_quarter_width := 1.0;
-def draw_do_head (expr width_factor, dir) =
+def draw_do_head (expr width_factor, dir, thickness_factor) =
save p_in, p_out;
- save left_dist, right_dist;
+ save left_dist, right_dist, bottom_dist;
path p_in, p_out;
- pair left_dist, right_dist;
+ pair left_dist, right_dist, bottom_dist;
set_char_box (0, width_factor * solfa_base_notewidth#,
0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
pickup pencircle scaled solfa_pen_thick;
+
+ bottom_thick_factor := thickness_factor;
+ % no different thickness for left side if we want uniform thickness
+ left_thick_factor := if thickness_factor = 1 :
+ 1;
+ else :
+ 0.7 * thickness_factor;
+ fi
bot y1 = -d;
y1 = y2;
lft x1 = 0;
left_dist = (unitvector (z3 - z1) rotated 90) * 0.5 solfa_pen_thick;
right_dist = (unitvector (z2 - z3) rotated 90) * 0.5 solfa_pen_thick;
+ bottom_dist = (0,1) * 0.5 solfa_pen_thick;
- p_in := (((z1 - left_dist) -- (z3 - left_dist)) intersectionpoint
- (top z1 -- top z2))
- -- ((top z1 -- top z2) intersectionpoint
- ((z2 - right_dist) -- (z3 - right_dist)))
- -- (((z2 - right_dist) -- (z3 - right_dist)) intersectionpoint
- ((z1 - left_dist) -- (z3 - left_dist)))
- -- cycle;
+ save pa, pb, pc;
+ path pa, pb, pc;
+ save point_a, point_b, point_c;
+ pair point_a, point_b, point_c;
+
+ pa := (z1 - left_thick_factor * left_dist) --
+ (z3 - left_thick_factor * left_dist);
+ pb := (z1 + bottom_thick_factor * bottom_dist) --
+ (z2 + bottom_thick_factor * bottom_dist);
+ pc := (z2 - right_dist) -- (z3 - right_dist);
+
+
+ point_a := pa intersectionpoint pb;
+ point_b := pb intersectionpoint pc;
+ point_c := pc intersectionpoint pa;
+
+ p_in := point_a -- point_b -- point_c -- cycle;
p_out := bot z1
-- bot z2{right}
.. lft z1{down}
.. {right}cycle;
-
labels (1, 2, 3);
charwx := charwd;
fet_beginchar ("Whole dohead", "s0do");
- draw_do_head (solfa_whole_width, 1);
+ draw_do_head (solfa_whole_width, 1, 3.25);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half dohead", "d1do");
- draw_do_head (solfa_half_width, -1);
+ draw_do_head (solfa_half_width, -1, 3.25);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half dohead", "u1do");
- draw_do_head (solfa_half_width, 1);
+ draw_do_head (solfa_half_width, 1, 3.25);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Quart dohead", "d2do");
- draw_do_head (solfa_quarter_width, -1);
+ draw_do_head (solfa_quarter_width, -1, 3.25);
fill p_out;
fet_endchar;
fet_beginchar ("Quart dohead", "u2do");
- draw_do_head (solfa_quarter_width, 1);
+ draw_do_head (solfa_quarter_width, 1, 3.25);
+ fill p_out;
+fet_endchar;
+
+
+
+fet_beginchar ("Whole thin dohead", "s0doThin");
+ draw_do_head (solfa_whole_width, 1, 1);
fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin dohead", "d1doThin");
+ draw_do_head (solfa_half_width, -1, 1);
+ fill p_out;
+ unfill p_in;
fet_endchar;
+fet_beginchar ("Half thin dohead", "u1doThin");
+ draw_do_head (solfa_half_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin dohead", "d2doThin");
+ draw_do_head (solfa_quarter_width, -1, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin dohead", "u2doThin");
+ draw_do_head (solfa_quarter_width, 1, 1);
+ fill p_out;
+fet_endchar;
+
+
+
%
% re - flat top, curved bottom:
-% (0,h/2) {dir -90} .. (w/2,-h/2) .. {dir 90} (w,h/2) -- cycle;
+% (0,h/2) {dir -90} .. (w/2,-h/2) .. {dir 90} (w,h/2) -- cycle;
% (broader along the base and with more vertical sides for half and
% whole notes)
+%
+% Note: According to some shape-note singers, there should be no size
+% differences for half and whole notes, contrary to the comment above
+%
% stem attachment: h/2
%
-def draw_re_head (expr width_factor, dir) =
+def draw_re_head (expr width_factor, dir, thickness_factor) =
save p_in, p_out;
path p_in, p_out;
pickup pencircle scaled solfa_pen_thick;
+
save curve_start;
curve_start = 0.7;
lft x1 = 0;
labels (range 1 thru 5);
- p_in := (z1 + 0.5 solfa_pen_thick * (1, -1))
+ p_in := (z1 + 0.5 solfa_pen_thick * (1, -1 * thickness_factor))
-- rt z2{down}
- .. top z3
+ .. ((top z3) + (0, thickness_factor * 0.5 solfa_pen_thick))
.. lft z4{up}
- -- (z5 + 0.5 solfa_pen_thick * (-1, -1))
+ -- (z5 + 0.5 solfa_pen_thick * (-1, -1 * thickness_factor))
-- cycle;
p_out := lft z1
fet_beginchar ("Whole rehead", "s0re");
- draw_re_head (solfa_whole_width, 1);
+ draw_re_head (solfa_whole_width, 1, 2.5);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half up rehead", "u1re");
- draw_re_head (solfa_half_width, 1);
+ draw_re_head (solfa_half_width, 1, 2.5);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half down rehead", "d1re");
- draw_re_head (solfa_half_width, -1);
+ draw_re_head (solfa_half_width, -1, 2.5);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Quart rehead", "u2re");
- draw_re_head (solfa_quarter_width, 1);
+ draw_re_head (solfa_quarter_width, 1, 2.5);
fill p_out;
fet_endchar;
fet_beginchar ("Quart rehead", "d2re");
- draw_re_head (solfa_quarter_width, -1);
+ draw_re_head (solfa_quarter_width, -1, 2.5);
fill p_out;
fet_endchar;
-def draw_mi_head (expr width_factor) =
+fet_beginchar ("Whole thin rehead", "s0reThin");
+ draw_re_head (solfa_whole_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half up thin rehead", "u1reThin");
+ draw_re_head (solfa_half_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half down thin rehead", "d1reThin");
+ draw_re_head (solfa_half_width, -1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin rehead", "u2reThin");
+ draw_re_head (solfa_quarter_width, 1, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin rehead", "d2reThin");
+ draw_re_head (solfa_quarter_width, -1, 1);
+ fill p_out;
+fet_endchar;
+
+
+
+
+%%%% mi head -- diamond shape
+
+def draw_mi_head (expr width_factor, thickness_factor, mirror) =
save path_out, path_in;
save ne_dist, se_dist, ne, se;
+ save path_a, path_b, path_c, path_d;
path path_out, path_in;
pair ne_dist, se_dist, ne, se;
+ path path_a, path_b, path_c, path_d;
+ save inner_path;
+ path inner_path;
set_char_box (0, width_factor * solfa_base_notewidth#,
0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
y3 = y1;
top y4 = h;
+ % inner sides are parallel to outer sides
z6 - z5 = whatever * (z2 - z1);
z8 - z7 = whatever * (z2 - z1);
z8 - z5 = whatever * (z4 - z1);
ne_dist = (ne rotated 90) * 0.5 solfa_pen_thick;
se_dist = (se rotated 90) * 0.5 solfa_pen_thick;
- z5 = whatever [z1, z4] - ne_dist;
- z5 = whatever [z1, z2] - 1.5 se_dist;
+ path_a := (z1 - se_dist) -- (z2 - se_dist);
+ path_b := (z2 + (ne_dist * thickness_factor)) --
+ (z3 + (ne_dist * thickness_factor));
+ path_c := (z3 + se_dist) -- (z4 + se_dist);
+ path_d := (z4 - (ne_dist * thickness_factor)) --
+ (z1 - (ne_dist * thickness_factor));
- z5 - z1 = -(z7 - z3);
+ z5 = path_a intersectionpoint path_d;
+ z7 = path_b intersectionpoint path_c;
labels (range 1 thru 8);
- path_in := z5
+ inner_path := z5
-- z6
-- z7
-- z8
-- cycle;
+ path_in := if mirror:
+ inner_path;
+ else:
+ inner_path reflectedabout (z2, z4);
+ fi
+
path_out := lft z1
.. (z1 + se_dist){-se}
-- (z2 + se_dist){-se}
fet_beginchar ("Whole mihead", "s0mi");
- draw_mi_head (solfa_whole_width);
+ draw_mi_head (solfa_whole_width, 3, false);
fill path_out;
unfill path_in;
fet_endchar;
fet_beginchar ("Half mihead", "s1mi");
- draw_mi_head (solfa_quarter_width);
+ draw_mi_head (solfa_quarter_width, 3, false);
fill path_out;
unfill path_in;
fet_endchar;
-
fet_beginchar ("Quart mihead", "s2mi");
- draw_mi_head (solfa_quarter_width);
+ draw_mi_head (solfa_quarter_width, 3, false);
+ fill path_out;
+fet_endchar;
+
+
+
+fet_beginchar ("Whole mirror mihead", "s0miMirror");
+ draw_mi_head (solfa_whole_width, 3, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+fet_beginchar ("Half mirror mihead", "s1miMirror");
+ draw_mi_head (solfa_quarter_width, 3, true);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+fet_beginchar ("Quart mirror mihead", "s2miMirror");
+ draw_mi_head (solfa_quarter_width, 3, true);
fill path_out;
fet_endchar;
-def draw_fa_head (expr width_factor) =
+
+fet_beginchar ("Whole thin mihead", "s0miThin");
+ draw_mi_head (solfa_whole_width, 1, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin mihead", "s1miThin");
+ draw_mi_head (solfa_quarter_width, 1, false);
+ fill path_out;
+ unfill path_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin mihead", "s2miThin");
+ draw_mi_head (solfa_quarter_width, 1, false);
+ fill path_out;
+fet_endchar;
+
+
+
+%%%% fa head
+
+def draw_fa_head (expr width_factor, thickness_factor) =
set_char_box (0, width_factor * solfa_base_notewidth#,
0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
save p_down_in, p_down_out, p_up_in, p_up_out, nw_dist, nw;
path p_down_in, p_down_out, p_up_in, p_up_out;
+ save path_a, path_b, path_c;
+ path path_a, path_b, path_c;
pair nw_dist, nw;
pickup pencircle scaled solfa_pen_thick;
nw = unitvector (z1 - z3);
nw_dist = (nw rotated 90) * 0.5 solfa_pen_thick;
- p_up_in := (((z1 - nw_dist) -- (z3 - nw_dist)) intersectionpoint
- (bot z1 -- bot z2))
- -- (((z1 - nw_dist) -- (z3 - nw_dist)) intersectionpoint
- (lft z3 -- lft z2))
- -- (z2 + 0.5 solfa_pen_thick * (-1, -1))
- -- cycle;
+ path_a := (z1 - (0,1) * thickness_factor * solfa_pen_thick) --
+ (z2 - (0,1) * thickness_factor * solfa_pen_thick);
+ path_b := (z2 - (1,0) * 0.5 solfa_pen_thick) --
+ (z3 - (1,0) * 0.5 solfa_pen_thick);
+ path_c := (z3 - nw_dist) -- (z1 - nw_dist);
+
+ p_up_in := (path_a intersectionpoint path_b) --
+ (path_b intersectionpoint path_c) --
+ (path_c intersectionpoint path_a) --
+ cycle;
p_up_out := lft z1{down}
.. (z1 + nw_dist){-nw}
fet_beginchar ("Whole fa up head", "u0fa");
- draw_fa_head (solfa_whole_width);
+ draw_fa_head (solfa_whole_width, 1.5);
fill p_up_out;
unfill p_up_in;
fet_endchar;
fet_beginchar ("Whole fa down head", "d0fa");
- draw_fa_head (solfa_whole_width);
+ draw_fa_head (solfa_whole_width, 1.5);
fill p_down_out;
unfill p_down_in;
fet_endchar;
fet_beginchar ("half fa up head", "u1fa");
- draw_fa_head (solfa_half_width);
+ draw_fa_head (solfa_half_width, 1.5);
fill p_up_out;
unfill p_up_in;
fet_endchar;
fet_beginchar ("Half fa down head", "d1fa");
- draw_fa_head (solfa_half_width);
+ draw_fa_head (solfa_half_width, 1.5);
fill p_down_out;
unfill p_down_in;
fet_endchar;
fet_beginchar ("Quarter fa up head", "u2fa");
- draw_fa_head (solfa_quarter_width);
+ draw_fa_head (solfa_quarter_width, 1.5);
fill p_up_out;
fet_endchar;
fet_beginchar ("Quarter fa down head", "d2fa");
- draw_fa_head (solfa_quarter_width);
+ draw_fa_head (solfa_quarter_width, 1.5);
+ fill p_down_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin fa up head", "u0faThin");
+ draw_fa_head (solfa_whole_width, 1);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin fa down head", "d0faThin");
+ draw_fa_head (solfa_whole_width, 1);
+ fill p_down_out;
+ unfill p_down_in;
+fet_endchar;
+
+
+fet_beginchar ("half thin fa up head", "u1faThin");
+ draw_fa_head (solfa_half_width, 1);
+ fill p_up_out;
+ unfill p_up_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin fa down head", "d1faThin");
+ draw_fa_head (solfa_half_width, 1);
fill p_down_out;
+ unfill p_down_in;
fet_endchar;
-def draw_la_head (expr width_factor) =
+fet_beginchar ("Quarter thin fa up head", "u2faThin");
+ draw_fa_head (solfa_quarter_width, 1);
+ fill p_up_out;
+fet_endchar;
+
+
+fet_beginchar ("Quarter thin fa down head", "d2faThin");
+ draw_fa_head (solfa_quarter_width, 1);
+ fill p_down_out;
+fet_endchar;
+
+
+
+%%%% sol head
+%%
+%% Note -- sol head is the same shape as a standard music
+%% head, and doesn't vary from style to style.
+%% However, width is constant with duration, so we
+%% can't just use the standard note font.
+
+def draw_sol_head (expr filled) =
+ draw_outside_ellipse (1.53 - puff_up_factor / 3.0, 34, 0.66, 0.17);
+ if not filled:
+ undraw_inside_ellipse (3.25, 33, 0.81, 2.5 stafflinethickness#);
+ fi
+ draw_staff (-2, 2, 0);
+enddef;
+
+fet_beginchar ("Whole solhead", "s0sol");
+ draw_sol_head ( false);
+fet_endchar;
+
+
+fet_beginchar ("Half solhead", "s1sol");
+ draw_sol_head ( false);
+fet_endchar;
+
+
+fet_beginchar ("Quart solhead", "s2sol");
+ draw_sol_head ( true);
+fet_endchar;
+
+
+
+%%%% la head
+
+def draw_la_head (expr width_factor, thickness_factor) =
set_char_box (0, width_factor * solfa_base_notewidth#,
0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
save p_in, p_out;
labels (range 1 thru 4);
- p_in := (z1 + 0.5 solfa_pen_thick * (1, -1))
- -- (z2 + 0.5 solfa_pen_thick * (-1, -1))
- -- (z3 + 0.5 solfa_pen_thick * (-1, 1))
- -- (z4 + 0.5 solfa_pen_thick * (1, 1))
+ p_in := (z1 + 0.5 solfa_pen_thick * (1, -thickness_factor))
+ -- (z2 + 0.5 solfa_pen_thick * (-1, -thickness_factor))
+ -- (z3 + 0.5 solfa_pen_thick * (-1, thickness_factor))
+ -- (z4 + 0.5 solfa_pen_thick * (1, thickness_factor))
-- cycle;
p_out := top z1
fet_beginchar ("Whole lahead", "s0la");
- draw_la_head (solfa_whole_width);
+ draw_la_head (solfa_whole_width, 3);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half lahead", "s1la");
- draw_la_head (solfa_half_width);
+ draw_la_head (solfa_half_width, 3);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Quart lahead", "s2la");
- draw_la_head (solfa_quarter_width);
+ draw_la_head (solfa_quarter_width, 3);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin lahead", "s0laThin");
+ draw_la_head (solfa_whole_width, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin lahead", "s1laThin");
+ draw_la_head (solfa_half_width, 1);
fill p_out;
+ unfill p_in;
fet_endchar;
-def draw_ti_head (expr width_factor, dir) =
+fet_beginchar ("Quart lahead", "s2laThin");
+ draw_la_head (solfa_quarter_width, 1);
+ fill p_out;
+fet_endchar;
+
+
+
+%%%% ti head
+
+def draw_ti_head (expr width_factor, dir, thickness_factor) =
set_char_box (0, width_factor * solfa_base_notewidth#,
0.5 solfa_noteheight#, 0.5 solfa_noteheight#);
- save p_in, p_out, p_top;
+ save p_in, p_out, p_top, p_top_in;
save nw_dist, sw_dist, nw, sw;
- path p_in, p_out, p_top;
+ path p_in, p_out, p_top, p_top_in;
pair nw_dist, sw_dist, nw, sw;
save cone_height;
cone_height = 0.64;
y4 = y2;
x3 = x1;
top y3 = h;
+ x5 = x1;
+ y5 = y1 + thickness_factor * 0.5 * solfa_pen_thick;
labels (range 1 thru 4);
.. (top z3){right}
.. (z4 - nw_dist);
- p_in := (((z1 - nw_dist) -- (z2 - nw_dist)) intersectionpoint
- ((z1 - sw_dist) -- (z4 - sw_dist)))
- -- (((z1 - nw_dist) -- (z2 - nw_dist)) intersectionpoint
- ((z2 + sw_dist) .. {right}(bot z3)))
- .. bot z3
- .. (((bot z3){right} .. (z4 + nw_dist)) intersectionpoint
- ((z1 - sw_dist) -- (z4 - sw_dist)))
- -- cycle;
+ p_top_in := (z2 + sw_dist * thickness_factor) {- sw}
+ .. ((top z3) - (0,1) * thickness_factor * 0.5 solfa_pen_thick) {right}
+ .. (z4 + nw_dist * thickness_factor){- nw};
+
+ save path_a, path_b;
+ path path_a, path_b;
+ path_a := z2 -- z5;
+ path_b := z5 -- z4;
+
+ z6 = path_a intersectionpoint p_top_in;
+ z7 = path_b intersectionpoint p_top_in;
+
+ p_in := z5 -- z6 .. bot z3 .. z7 -- cycle;
p_out := bot z1
.. (z1 + nw_dist)
fet_beginchar ("Whole up tihead", "s0ti");
- draw_ti_head (solfa_whole_width, 1);
+ draw_ti_head (solfa_whole_width, 1, 3);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half up tihead", "u1ti");
- draw_ti_head (solfa_half_width, 1);
+ draw_ti_head (solfa_half_width, 1, 3);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Half down tihead", "d1ti");
- draw_ti_head (solfa_half_width, -1);
+ draw_ti_head (solfa_half_width, -1, 3);
fill p_out;
unfill p_in;
fet_endchar;
fet_beginchar ("Quart up tihead", "u2ti");
- draw_ti_head (solfa_quarter_width, 1);
+ draw_ti_head (solfa_quarter_width, 1, 3);
fill p_out;
fet_endchar;
fet_beginchar ("Quart down tihead", "d2ti");
- draw_ti_head (solfa_quarter_width, -1);
+ draw_ti_head (solfa_quarter_width, -1, 3);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Whole thin up tihead", "s0tiThin");
+ draw_ti_head (solfa_whole_width, 1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Half thin up tihead", "u1tiThin");
+ draw_ti_head (solfa_half_width, 1, 1);
fill p_out;
+ unfill p_in;
fet_endchar;
+fet_beginchar ("Half thin down tihead", "d1tiThin");
+ draw_ti_head (solfa_half_width, -1, 1);
+ fill p_out;
+ unfill p_in;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin up tihead", "u2tiThin");
+ draw_ti_head (solfa_quarter_width, 1, 1);
+ fill p_out;
+fet_endchar;
+
+
+fet_beginchar ("Quart thin down tihead", "d2tiThin");
+ draw_ti_head (solfa_quarter_width, -1, 1);
+ fill p_out;
+fet_endchar;
+
+
+
fet_endgroup ("noteheads");
+
%
% we derive black_notehead_width# from the quarter head,
% so we have to define black_notehead_width (pixel qty)
projects / lilypond.git / blobdiff