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% 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=63 {total number of integer parameters}
@d count_base=int_base+int_pars {256 user \.{\\count} registers}
@y
@d tex_int_pars=63 {total number of \TeX's integer parameters}
@#
@d etex_int_base=tex_int_pars {base for \eTeX's integer parameters}
@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;
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;
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]
var @!l:0..255; {small indices or counters}
@y
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]
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
@x
@* \[55/\pTeX] System-dependent changes for \pTeX.
@y
@* \[54/\pTeX] System-dependent changes for \pTeX.
@z
@x
@* \[56] System-dependent changes.
@y
@* \[54] System-dependent changes.
@z
|
