1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
% eptexdir/etex.ch1: changefile used to build e-pTeX, see eptexdir/eptex-base.ch for details.
% Public domain. Originally written by Peter Breitenlohner <tex-live@tug.org>.
@x [12.184]
begin print(", "); print_direction(box_dir(p));
@y
begin print_direction_alt(box_dir(p));
@z
@x [16.215] - e-pTeX last_node_subtype
last_glue:=max_halfword; last_penalty:=0; last_kern:=0;
last_node_type:=-1;
@y
last_glue:=max_halfword; last_penalty:=0; last_kern:=0;
last_node_type:=-1; last_node_subtype:=-1;
@z
@x [17.236]
@d int_pars=web2c_int_pars {total number of integer parameters}
@y
@d etex_int_base=web2c_int_pars {base for \eTeX's integer parameters}
@z
@x [18]
for j:=0 to l-1 do begin
buffer[j]:=Lo(so(str_pool[k+j])); buffer2[j]:=Hi(so(str_pool[k+j])); end;
@y
for j:=0 to l-1 do begin
buffer[first+j]:=Lo(so(str_pool[k+j])); buffer2[first+j]:=Hi(so(str_pool[k+j])); end;
@z
@x
@d eTeX_int=badness_code+1 {first of \eTeX\ codes for integers}
@y
@d eTeX_int=ptex_minor_version_code+1 {first of \eTeX\ codes for integers}
@z
@x
begin case m of
input_line_no_code: cur_val:=line;
badness_code: cur_val:=last_badness;
ptex_version_code: cur_val:=pTeX_version;
uptex_version_code: cur_val:=upTeX_version;
eptex_version_code: cur_val:=epTeX_version_number;
ptex_minor_version_code: cur_val:=pTeX_minor_version;
end; {there and no other cases}
@y
if m>=eTeX_glue then @<Process an expression and |return|@>@;
else if m>=eTeX_dim then
begin case m of
@/@<Cases for fetching a dimension value@>@/
end; {there are no other cases}
cur_val_level:=dimen_val;
end
else begin case m of
input_line_no_code: cur_val:=line;
badness_code: cur_val:=last_badness;
ptex_version_code: cur_val:=pTeX_version;
uptex_version_code: cur_val:=upTeX_version;
eptex_version_code: cur_val:=epTeX_version_number;
ptex_minor_version_code: cur_val:=pTeX_minor_version;
@/@<Cases for fetching an integer value@>@/
end; {there are no other cases}
@z
@x [27.468]
@d job_name_code=ptex_convert_codes {command code for \.{\\jobname}}
@y
@d etex_convert_base=ptex_convert_codes {base for \eTeX's command codes}
@d eTeX_revision_code=etex_convert_base {command code for \.{\\eTeXrevision}}
@d etex_convert_codes=etex_convert_base+1 {end of \eTeX's command codes}
@d job_name_code=etex_convert_codes {command code for \.{\\jobname}}
@z
@x [30.581]
@p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
var @!l:0..255; {small indices or counters}
@y
@p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
var @!l:0..255; {small indices or counters}
old_setting: integer; {saved value of |tracing_online|}
@z
@x [32.619]
base_line:=cur_v; left_edge:=cur_h; disp:=0;
@y
base_line:=cur_v; disp:=0; revdisp:=0;
prev_p:=this_box+list_offset;
@<Initialize |hlist_out| for mixed direction typesetting@>;
left_edge:=cur_h;
@z
@x [32.622]
@<Output node |p| for |hlist_out|...@>=
@y
@<Output node |p| for |hlist_out|...@>=
@z
@x [32.622]
p:=link(p);
@y
prev_p:=link(prev_p); {N.B.: not |prev_p:=p|, |p| might be |lig_trick|}
p:=link(p);
@z
@x [32.623]
disp_node: begin disp:=disp_dimen(p); cur_v:=base_line+disp; end;
@y
disp_node: begin disp:=disp_dimen(p); revdisp:=disp; cur_v:=base_line+disp; end;
@z
@x [32.624]
cur_h:=edge+width(p); cur_v:=base_line+disp; cur_dir_hv:=save_dir;
@y
cur_h:=edge; cur_v:=base_line+disp; cur_dir_hv:=save_dir;
@z
@x [33.649]
exit: last_disp:=disp; hpack:=r;
@y
exit: last_disp:=disp;
if TeXXeT_en then @<Check for LR anomalies at the end of |hpack|@>;
hpack:=r;
@z
@x [33.651]
disp_node:disp:=disp_dimen(p);
@y
disp_node:begin disp:=disp_dimen(p); revdisp:=disp; end;
@z
@x [44.977]
q:=prune_page_top(q); p:=list_ptr(v);
if q=null then box(n):=null {the |eq_level| of the box stays the same}
else begin
box(n):=vpack(q,natural); set_box_dir(box(n))(box_dir(v));
end;
@y
q:=prune_page_top(q,saving_vdiscards>0);
p:=list_ptr(v);
if q<>null then begin
q:=vpack(q,natural); set_box_dir(q)(box_dir(v));
end;
change_box(q);
@z
@x [47.1096]
else begin adjust_hlist(head,true); line_break(widow_penalty)
@y
else begin adjust_hlist(head,true); line_break(false)
@z
@x [47.1110]
begin if type(box(cur_val))=dir_node then
begin delete_glue_ref(space_ptr(box(cur_val)));
delete_glue_ref(xspace_ptr(box(cur_val)));
free_node(box(cur_val),box_node_size);
@y
begin if type(p)=dir_node then
begin delete_glue_ref(space_ptr(p));
delete_glue_ref(xspace_ptr(p));
free_node(p,box_node_size);
@z
@x [47.1110]
link(tail):=list_ptr(p); box(cur_val):=null;
@y
link(tail):=list_ptr(p); change_box(null);
@z
@x [48.1145]
pop_nest; w:=-max_dimen;
end
{ |disp_node|-only paragraphs are ignored }
@y
@<Prepare for display after an empty paragraph@>
end
{ |disp_node|-only paragraphs are ignored }
@z
@x [48.1145]
else begin adjust_hlist(head,true); line_break(display_widow_penalty);@/
@y
else begin adjust_hlist(head,true); line_break(true);@/
@z
@x [49.1247]
if box(b)<>null then
begin q:=box(b); p:=link(q);
@y
if b<>null then
begin q:=b; p:=link(q);
@z
@x [49.1247]
begin p:=link(box(b)); link(box(b)):=null;
@y
begin p:=link(b); link(b):=null;
@z
@x [49.1247]
link(q):=p; link(box(b)):=q;
@y
link(q):=p; link(b):=q;
@z
@x [49.1291]
@d show_mode=4 { \.{\\showmode} }
@y
@d show_mode=7 { \.{\\showmode} }
@z
|
