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|
% $Id$
% This is a change file for pTeX
% By Sadayuki Tanaka and ASCII MEDIA WORKS.
%
% Thanks for :
% Ryoichi Kurasawa (us009185@interramp.com),
% Hisato Hamano,
% Hiroto Kagotani (kagotani@in.it.okayama-u.ac.jp),
% Takashi Kakiuchi (kakiuchi@sy6.isl.mei.co.jp),
% Yoichi Kawabata (kawabata@canon.co.jp),
% Makoto Kobayashi (makoto@lloem.fujidenki.co.jp),
% Yoshihiro Aoki (aoki@tokyo-shoseki-ptg.co.jp),
% Akira Kakuto (kakuto@fuk.kindai.ac.jp).
% Koich Inoue (inoue@ma.ns.musashi-tech.ac.jp).
%
% (??/??/87) RKS jTeX 2.9 -- j1.0
% (??/??/89) RKS jTeX 2.93 -- j1.3
% (12/ 9/89) H_2 pTeX 2.93 j1.3 p1.0.1
% (12/??/89) RKS jTeX 2.95 -- j1.5
% (12/??/89) RKS jTeX 2.99 -- j1.5
% (02/02/90) RKS jTeX 2.99 -- j1.6
% (04/16/90) H_2 pTeX 2.99 j1.6 p1.0.3
% (09/14/90) H_2 pTeX 2.99 j1.6 p1.0.9 -- pre-release
% (10/29/90) H_2 Bug fix (p1.0.9a)
% (01/21/92) H_2 jTeX 2.99 - j1.7
% (01/21/92) H_2 pTeX 2.99 j1.7 p1.0.9F
% (03/09/92) H_2 pTeX 2.99 j1.7 p1.0.9G jflag BUG
% (03/20/95) KN pTeX p2.0 (based on 3.1415)
% (09/08/95) KN pTeX p2.1
% (09/20/95) KN pTeX p2.1.1
% (11/21/95) KN pTeX p2.1.4
% (08/27/97) KN pTeX p2.1.5 (based on 3.14159)
% (02/26/98) KN pTeX p2.1.6
% (03/19/98) KN pTeX p2.1.7
% (03/26/98) KN pTeX p2.1.8 (Web2c 7.2)
% (02/21/2000) KN pTeX p2.1.9 (Web2c 7.3.1)
% (11/13/2000) KN pTeX p2.1.10
% (05/22/2001) KN pTeX p2.1.11
% (03/10/2001) KN pTeX p3.0 (modified BSD licence)
% (09/02/2004) ST pTeX p3.1.4
% (11/29/2004) KN pTeX p3.1.5
% (12/13/2004) KN pTeX p3.1.8
% (10/17/2005) ST pTeX p3.1.9
% (07/18/2006) ST pTeX p3.1.10
% (08/17/2009) ST pTeX p3.1.11
% (05/23/2010) AK Bug fix by Hironori Kitagawa.
% (31/12/2010) AK Bug fix and accent Kanji by Hironori Kitagawa.
% (19/01/2011) PB Let \lastkern etc act through disp node.
% (15/04/2011) PB pTeX p3.2 Add \ifdbox and \ifddir
% (2011-08-18) PB Bug fix by Hironori Kitagawa.
% (2012-05-11) PB pTeX p3.3
% (2013-04-09) PB pTeX p3.4 (TL 2013)
% (2014-04-17) KB pTeX p3.5 (TL 2014)
% (2014-03-15) KB pTeX p3.6 (TL 2015)
% (2015-09-10) AK pTeX p3.7 Bug fix by Hironori Kitagawa in flushing choice node.
% (2016-03-04) AK Hironori Kitagawa added new primitives to improve typesetting
% with non-vanishing \ybaselineshift.
% (2016-06-06) AK Hironori Kitagawa fixed a bug in check_box(box_p:pointer).
% pTeX p3.7.1.
% (2017-09-07) HK pTeX p3.7.2 More restrictions on direction change commands.
% (2018-01-21) HK Added \ptexversion primitive and co. pTeX p3.8.
% (2018-04-14) HK pTeX p3.8.1 Bug fix for discontinuous KINSOKU table.
% (2019-02-03) HK pTeX p3.8.2 Change \inhibitglue, add \disinhibitglue.
% (2019-10-14) HY pTeX p3.8.3 Allow getting \kansujichar.
% (2021-02-18) HK pTeX p3.9.0 Add \ifjfont and \iftfont (in 2020-02-06, by HY),
% Bug fix for getting \kansujichar (in 2020-02-09 = TL20),
% based on TeX 3.141592653 (for TL21).
% (2021-06-25) HY pTeX p3.9.1 Various fixes.
% (2021-06-20) HK pTeX p3.10.0 Add \ucs and \toucs.
% (2022-01-22) HK pTeX p4.0.0 Distinguish 8-bit characters and Japanese characters
% for better support of LaTeX3 (expl3).
% Requires ptexenc version 1.4.0.
% More details in TUGboat 41(2):329--334, 2020.
% (2022-10-24) HY pTeX p4.1.0 Add new syntax \font [in jis/ucs].
% New primitives: \tojis, \ptextracingfonts and \ptexfontname.
@x
% Here is TeX material that gets inserted after \input webmac
@y
% Here is TeX material that gets inserted after \input webmac
\def\pTeX{p\kern-.15em\TeX}
@z
@x [1.2] l.200 - pTeX:
@d banner==TeX_banner
@d banner_k==TeX_banner_k
@y
@d pTeX_version=4
@d pTeX_minor_version=1
@d pTeX_revision==".0"
@d pTeX_version_string=='-p4.1.0' {current \pTeX\ version}
@#
@d pTeX_banner=='This is pTeX, Version 3.141592653',pTeX_version_string
@d pTeX_banner_k==pTeX_banner
{printed when \pTeX\ starts}
@#
@d banner==pTeX_banner
@d banner_k==pTeX_banner_k
@z
@x [2.??] l.586 - pTeX:
@!ASCII_code=0..255; {eight-bit numbers}
@y
@!ASCII_code=0..255; {eight-bit numbers}
@!KANJI_code=0..65535; {sixteen-bit numbers}
@!ext_ASCII_code=0..32768; { only use 0--511 }
@z
@x pTeX: xchr
xchr: array [ASCII_code] of text_char;
{ specifies conversion of output characters }
@y
xchr: array [ext_ASCII_code] of ext_ASCII_code;
{ specifies conversion of output characters }
@z
@x pTeX: xchr
for i:=@'177 to @'377 do xchr[i]:=i;
@y
for i:=@'177 to @'777 do xchr[i]:=i;
@z
@x [3.??] l.870 - pTeX:
@!eight_bits=0..255; {unsigned one-byte quantity}
@y
@!eight_bits=0..255; {unsigned one-byte quantity}
@!sixteen_bits=0..65535; {unsigned two-bytes quantity}
@z
@x [3.??] l.891 - pTeX:
@ All of the file opening functions are defined in C.
@y
@ All of the file opening functions are defined in C.
@ Kanji code handling.
@z
@x [3.??] pTeX
@<Glob...@>=
@!buffer:^ASCII_code; {lines of characters being read}
@y
In \pTeX, we use another array |buffer2[]| to indicate which byte
is a part of a Japanese character.
|buffer2[]| is initialized to zero in reading one line from a file
(|input_ln|). |buffer2[i]| is set to one when |buffer[i]| is known
to be a part of a Japanese character, in |get_next| routine.
@<Glob...@>=
@!buffer:^ASCII_code; {lines of characters being read}
@!buffer2:^ASCII_code;
@z
@x [4]
@!packed_ASCII_code = 0..255; {elements of |str_pool| array}
@y
@!packed_ASCII_code = 0..32768; {elements of |str_pool| array}
{ 256..511 are used by Japanese characters }
@z
@x [4] pTeX: str_eq_buf
while j<str_start[s+1] do
begin if so(str_pool[j])<>buffer[k] then
@y
while j<str_start[s+1] do
begin if so(str_pool[j])<>buffer2[k]*@"100+buffer[k] then
@z
@x [4.47] l.1325 - pTeX:
@!init function get_strings_started:boolean; {initializes the string pool,
but returns |false| if something goes wrong}
label done,exit;
var k,@!l:0..255; {small indices or counters}
@y
@!init function get_strings_started:boolean; {initializes the string pool,
but returns |false| if something goes wrong}
label done,exit;
var k,@!l:KANJI_code; {small indices or counters}
@z
@x [5.54] l.1514 - pTeX: Global variables
@!trick_buf:array[0..ssup_error_line] of ASCII_code; {circular buffer for
pseudoprinting}
@y
@!trick_buf:array[0..ssup_error_line] of ext_ASCII_code; {circular buffer for
pseudoprinting}
@!trick_buf2:array[0..ssup_error_line] of 0..2; {pTeX: buffer for KANJI}
@!kcode_pos: 0..2; {pTeX: denotes whether first byte or second byte of KANJI}
@!prev_char: ASCII_code;
@z
@x [5.55] l.1519 - pTeX: Initialize the kcode_pos
@ @<Initialize the output routines@>=
selector:=term_only; tally:=0; term_offset:=0; file_offset:=0;
@y
@ @<Initialize the output routines@>=
selector:=term_only; tally:=0; term_offset:=0; file_offset:=0;
kcode_pos:=0;
@z
@x [5.57] l.1538 - pTeX: kcode_pos
procedure print_ln; {prints an end-of-line}
begin case selector of
term_and_log: begin wterm_cr; wlog_cr;
term_offset:=0; file_offset:=0;
end;
log_only: begin wlog_cr; file_offset:=0;
end;
term_only: begin wterm_cr; term_offset:=0;
end;
no_print,pseudo,new_string: do_nothing;
othercases write_ln(write_file[selector])
endcases;@/
@y
procedure print_ln; {prints an end-of-line}
begin case selector of
term_and_log: begin
if kcode_pos=1 then begin wterm(' '); wlog(' '); end;
wterm_cr; wlog_cr; term_offset:=0; file_offset:=0;
end;
log_only: begin if kcode_pos=1 then wlog(' ');
wlog_cr; file_offset:=0;
end;
term_only: begin if kcode_pos=1 then wterm(' ');
wterm_cr; term_offset:=0;
end;
no_print,pseudo,new_string: do_nothing;
othercases write_ln(write_file[selector])
endcases;@/
kcode_pos:=0;
@z
@x [5.58] l.1557 - pTeX: kcode_pos, trick_buf2
procedure print_char(@!s:ASCII_code); {prints a single character}
label exit;
begin if @<Character |s| is the current new-line character@> then
if selector<pseudo then
begin print_ln; return;
end;
case selector of
term_and_log: begin wterm(xchr[s]); wlog(xchr[s]);
incr(term_offset); incr(file_offset);
if term_offset=max_print_line then
begin wterm_cr; term_offset:=0;
end;
if file_offset=max_print_line then
begin wlog_cr; file_offset:=0;
end;
end;
log_only: begin wlog(xchr[s]); incr(file_offset);
if file_offset=max_print_line then print_ln;
end;
term_only: begin wterm(xchr[s]); incr(term_offset);
if term_offset=max_print_line then print_ln;
end;
no_print: do_nothing;
pseudo: if tally<trick_count then trick_buf[tally mod error_line]:=s;
@y
procedure print_char(@!s:ext_ASCII_code); {prints a single character}
label exit; {label is not used but nonetheless kept (for other changes?)}
begin if @<Character |s| is the current new-line character@> then
if selector<pseudo then
begin print_ln; return;
end;
if s>@"1FF then s:=s mod 256;
if s<256 then kcode_pos:=0
else if kcode_pos=1 then kcode_pos:=2
else if iskanji1(xchr[s-256]) then
begin kcode_pos:=1;
if (selector=term_and_log)or(selector=log_only) then
if file_offset>=max_print_line-1 then
begin wlog_cr; file_offset:=0;
end;
if (selector=term_and_log)or(selector=term_only) then
if term_offset>=max_print_line-1 then
begin wterm_cr; term_offset:=0;
end;
end
else kcode_pos:=0;
case selector of
term_and_log: begin wterm(xchr[s]); incr(term_offset);
if term_offset=max_print_line then
begin wterm_cr; term_offset:=0;
end;
wlog(xchr[s]); incr(file_offset);
if file_offset=max_print_line then
begin wlog_cr; file_offset:=0;
end;
end;
log_only: begin wlog(xchr[s]); incr(file_offset);
if file_offset=max_print_line then print_ln;
end;
term_only: begin wterm(xchr[s]); incr(term_offset);
if term_offset=max_print_line then print_ln;
end;
no_print: do_nothing;
pseudo: if tally<trick_count then
begin trick_buf[tally mod error_line]:=s;
trick_buf2[tally mod error_line]:=kcode_pos;
end;
@z
@x l.1603 - pTeX
procedure print(@!s:integer); {prints string |s|}
label exit;
var j:pool_pointer; {current character code position}
@!nl:integer; {new-line character to restore}
begin if s>=str_ptr then s:="???" {this can't happen}
@.???@>
else if s<256 then
if s<0 then s:="???" {can't happen}
else begin if selector>pseudo then
begin print_char(s); return; {internal strings are not expanded}
end;
if (@<Character |s| is the current new-line character@>) then
if selector<pseudo then
begin print_ln; return;
end;
nl:=new_line_char; new_line_char:=-1;
{temporarily disable new-line character}
j:=str_start[s];
while j<str_start[s+1] do
begin print_char(so(str_pool[j])); incr(j);
end;
new_line_char:=nl; return;
end;
j:=str_start[s];
while j<str_start[s+1] do
begin print_char(so(str_pool[j])); incr(j);
end;
exit:end;
@y
procedure print(@!s:integer); {prints string |s|}
label exit;
var j:pool_pointer; {current character code position}
@!nl:integer; {new-line character to restore}
begin if s>=str_ptr then s:="???" {this can't happen}
@.???@>
else if s<256 then
if s<0 then s:="???" {can't happen}
else begin if selector>pseudo then
begin print_char(s); return; {internal strings are not expanded}
end;
if (@<Character |s| is the current new-line character@>) then
if selector<pseudo then
begin print_ln; return;
end;
if xprn[s] then begin print_char(s); return; end;
nl:=new_line_char; new_line_char:=-1;
{temporarily disable new-line character}
j:=str_start[s];
while j<str_start[s+1] do
begin print_char(so(str_pool[j])); incr(j);
end;
new_line_char:=nl; return;
end;
j:=str_start[s];
while j<str_start[s+1] do
begin print_char(so(str_pool[j])); incr(j);
end;
exit:end;
@z
@x
procedure slow_print(@!s:integer); {prints string |s|}
var j:pool_pointer; {current character code position}
begin if (s>=str_ptr) or (s<256) then print(s)
else begin j:=str_start[s];
while j<str_start[s+1] do
begin print(so(str_pool[j])); incr(j);
end;
end;
end;
@y
procedure slow_print(@!s:integer); {prints string |s|}
var j:pool_pointer; {current character code position}
c:integer;
begin if (s>=str_ptr) or (s<256) then print(s)
else begin j:=str_start[s];
while j<str_start[s+1] do
begin c:=so(str_pool[j]);
if c>=@"100 then print_char(c) else print(c); incr(j);
end;
end;
end;
procedure slow_print_filename(@!s:integer);
{prints string |s| which represents filename, without code conversion}
var i,j,l:pool_pointer; p:integer;
begin if (s>=str_ptr) or (s<256) then print(s)
else begin i:=str_start[s]; l:=str_start[s+1];
while i<l do begin
p:=multistrlenshort(str_pool, l, i);
if p<>1 then
begin for j:=i to i+p-1 do print_char(@"100+(so(str_pool[j]) mod @"100));
i:=i+p; end
else begin print(so(str_pool[i]) mod @"100); incr(i); end;
end;
end;
end;
procedure print_quoted(@!s:integer);
{prints string |s| which represents filename,
omitting quotes and with code conversion}
var i,l:pool_pointer; j,p:integer;
begin if s<>0 then begin
i:=str_start[s]; l:=str_start[s+1];
while i<l do begin
p:=multistrlenshort(str_pool, l, i);
if p<>1 then begin
for j:=i to i+p-1 do print_char(@"100+(so(str_pool[j]) mod @"100));
i:=i+p; end
else begin
if so(str_pool[i])<>"""" then print(so(str_pool[i]) mod @"100);
incr(i); end;
end;
end;
end;
@z
@x [5.61] l.1656 - pTeX:
@<Initialize the output...@>=
if src_specials_p or file_line_error_style_p or parse_first_line_p then
wterm(banner_k)
else
wterm(banner);
@y
@<Initialize the output...@>=
if src_specials_p or file_line_error_style_p or parse_first_line_p then
wterm(banner_k)
else
wterm(banner);
wterm(' (');
wterm(conststringcast(get_enc_string));
wterm(')');
@z
@x pTeX: print_hex for "Invalid KANJI code" or "Invalid KANSUJI char" errors
@ Old versions of \TeX\ needed a procedure called |print_ASCII| whose function
@y
@ Hexadecimal printing.
@d print_hex_safe(#)==if #<0 then print_int(#) else print_hex(#)
@ Old versions of \TeX\ needed a procedure called |print_ASCII| whose function
@z
@x [5.??] - pTeX: term_input
@p procedure term_input; {gets a line from the terminal}
@y
@p procedure@?print_unread_buffer_with_ptenc; forward;@t\2@>@/
procedure term_input; {gets a line from the terminal}
@z
@x [5.??] - pTeX: term_input
if last<>first then for k:=first to last-1 do print(buffer[k]);
@y
if last<>first then print_unread_buffer_with_ptenc(first,last);
@z
@x
@d max_quarterword=255 {largest allowable value in a |quarterword|}
@y
@d max_quarterword=@"FFFF {largest allowable value in a |quarterword|}
@z
@x
@d max_halfword==@"FFFFFFF {largest allowable value in a |halfword|}
@y
@d max_halfword==@"FFFFFFF {largest allowable value in a |halfword|}
@d max_cjk_val=@"10000
@z
@x [8.111] l.2436 - pTeX: check hi/ho
(mem_top+sup_main_memory>=max_halfword) then bad:=14;
@y
(mem_top+sup_main_memory>=max_halfword)or@|
(hi(0)<>0) then bad:=14;
@z
@x [8.112] l.2450 - pTeX: hi/ho
sufficiently large.
@y
sufficiently large and this is required for \pTeX.
@z
@x [8.112] l.2588 - pTeX:
@d ho(#)==# {to take a sixteen-bit item from a halfword}
@y
@d ho(#)==# {to take a sixteen-bit item from a halfword}
@d KANJI(#)==# {pTeX: to output a KANJI code}
@d tokanji(#)==# {pTeX: to take a KANJI code from a halfword}
@d tonum(#)==# {pTeX: to put a KANJI code into a halfword}
@z
@x [10.135] l.2895 - pTeX: box_dir
|fil|, |fill|, or |filll|). The |subtype| field is not used.
@y
|fil|, |fill|, or |filll|). The |subtype| field is not used in \TeX.
In \pTeX\ the |subtype| field records the box direction |box_dir|.
@z
@x [10.135] l.2897 - pTeX: box_dir, space_ptr, xspace_ptr
@d hlist_node=0 {|type| of hlist nodes}
@d box_node_size=7 {number of words to allocate for a box node}
@d width_offset=1 {position of |width| field in a box node}
@d depth_offset=2 {position of |depth| field in a box node}
@d height_offset=3 {position of |height| field in a box node}
@d width(#) == mem[#+width_offset].sc {width of the box, in sp}
@d depth(#) == mem[#+depth_offset].sc {depth of the box, in sp}
@d height(#) == mem[#+height_offset].sc {height of the box, in sp}
@d shift_amount(#) == mem[#+4].sc {repositioning distance, in sp}
@d list_offset=5 {position of |list_ptr| field in a box node}
@d list_ptr(#) == link(#+list_offset) {beginning of the list inside the box}
@d glue_order(#) == subtype(#+list_offset) {applicable order of infinity}
@d glue_sign(#) == type(#+list_offset) {stretching or shrinking}
@d normal=0 {the most common case when several cases are named}
@d stretching = 1 {glue setting applies to the stretch components}
@d shrinking = 2 {glue setting applies to the shrink components}
@d glue_offset = 6 {position of |glue_set| in a box node}
@d glue_set(#) == mem[#+glue_offset].gr
{a word of type |glue_ratio| for glue setting}
@y
@d hlist_node=0 {|type| of hlist nodes}
@d box_node_size=8 {number of words to allocate for a box node}
@#
@d dir_max = 5 {the maximal absolute value of direction}
@d box_dir(#) == (qo(subtype(#))-dir_max) {direction of a box}
@d set_box_dir(#) == subtype(#):=set_box_dir_end
@d set_box_dir_end(#) == qi(#)+dir_max
@#
@d dir_default = 0 {direction of the box, default Left to Right}
@d dir_dtou = 1 {direction of the box, Bottom to Top}
@d dir_tate = 3 {direction of the box, Top to Bottom}
@d dir_yoko = 4 {direction of the box, equal default}
@d any_dir == dir_yoko,dir_tate,dir_dtou
@#
@d width_offset=1 {position of |width| field in a box node}
@d depth_offset=2 {position of |depth| field in a box node}
@d height_offset=3 {position of |height| field in a box node}
@d width(#) == mem[#+width_offset].sc {width of the box, in sp}
@d depth(#) == mem[#+depth_offset].sc {depth of the box, in sp}
@d height(#) == mem[#+height_offset].sc {height of the box, in sp}
@d shift_amount(#) == mem[#+4].sc {repositioning distance, in sp}
@d list_offset=5 {position of |list_ptr| field in a box node}
@d list_ptr(#) == link(#+list_offset) {beginning of the list inside the box}
@d glue_order(#) == subtype(#+list_offset) {applicable order of infinity}
@d glue_sign(#) == type(#+list_offset) {stretching or shrinking}
@d normal=0 {the most common case when several cases are named}
@d stretching = 1 {glue setting applies to the stretch components}
@d shrinking = 2 {glue setting applies to the shrink components}
@d glue_offset = 6 {position of |glue_set| in a box node}
@d glue_set(#) == mem[#+glue_offset].gr
{a word of type |glue_ratio| for glue setting}
@d space_offset = 7 {position of |glue_set| in a box node}
@d space_ptr(#) == link(#+space_offset)
@d xspace_ptr(#) == info(#+space_offset)
@z
@x [10.136] l.3037 - pTeX: space_ptr, xspace_ptr
width(p):=0; depth(p):=0; height(p):=0; shift_amount(p):=0; list_ptr(p):=null;
glue_sign(p):=normal; glue_order(p):=normal; set_glue_ratio_zero(glue_set(p));
@y
width(p):=0; depth(p):=0; height(p):=0; shift_amount(p):=0; list_ptr(p):=null;
glue_sign(p):=normal; glue_order(p):=normal; set_glue_ratio_zero(glue_set(p));
space_ptr(p):=zero_glue; xspace_ptr(p):=zero_glue; set_box_dir(p)(dir_default);
add_glue_ref(zero_glue); add_glue_ref(zero_glue);
@z
@x [10.137] l.3045 - pTeX: direction change node
@d vlist_node=1 {|type| of vlist nodes}
@y
@d vlist_node=1 {|type| of vlist nodes}
@ A |dir_node| stands for direction change.
@d dir_node=2 {|type| of dir nodes}
@p function new_dir_node(b:pointer; dir:eight_bits):pointer;
var p:pointer; {the new node}
begin if type(b)>vlist_node then confusion("new_dir_node:not box");
p:=new_null_box; type(p):=dir_node; set_box_dir(p)(dir);
case abs(box_dir(b)) of
dir_yoko: @<Yoko to other direction@>;
dir_tate: @<Tate to other direction@>;
dir_dtou: @<DtoU to other direction@>;
othercases confusion("new_dir_node:illegal dir");
endcases;
link(b):=null; list_ptr(p):=b;
new_dir_node:=p;
end;
@ @<Yoko to other direction@>=
case dir of
dir_tate: begin width(p):=height(b)+depth(b);
depth(p):=width(b)/2; height(p):=width(b)-depth(p);
end;
dir_dtou: begin width(p):=height(b)+depth(b);
depth(p):=0; height(p):=width(b);
end;
othercases confusion("new_dir_node:y->?");
endcases
@ @<Tate to other direction@>=
case dir of
dir_yoko: begin width(p):=height(b)+depth(b);
depth(p):=0; height(p):=width(b);
end;
dir_dtou: begin width(p):=width(b);
depth(p):=height(b); height(p):=depth(b);
end;
othercases confusion("new_dir_node:t->?");
endcases
@ @<DtoU to other direction@>=
case dir of
dir_yoko: begin width(p):=height(b)+depth(b);
depth(p):=0; height(p):=width(b);
end;
dir_tate: begin width(p):=width(b);
depth(p):=height(b); height(p):=depth(b);
end;
othercases confusion("new_dir_node:d->?");
endcases
@z
@x [10.138] l.3054 - pTeX: renumber rule_node
@d rule_node=2 {|type| of rule nodes}
@y
@d rule_node=3 {|type| of rule nodes}
@z
@x [10.140] l.3083 - pTeX: renumber ins_node, add ins_dir field
@d ins_node=3 {|type| of insertion nodes}
@d ins_node_size=5 {number of words to allocate for an insertion}
@d float_cost(#)==mem[#+1].int {the |floating_penalty| to be used}
@d ins_ptr(#)==info(#+4) {the vertical list to be inserted}
@d split_top_ptr(#)==link(#+4) {the |split_top_skip| to be used}
@y
@d ins_node=4 {|type| of insertion nodes}
@d ins_node_size=6 {number of words to allocate for an insertion}
@d float_cost(#)==mem[#+1].int {the |floating_penalty| to be used}
@d ins_ptr(#)==info(#+4) {the vertical list to be inserted}
@d split_top_ptr(#)==link(#+4) {the |split_top_skip| to be used}
@d ins_dir(#)==(subtype(#+5)-dir_max) {direction of |ins_node|}
@d set_ins_dir(#) == subtype(#+5):=set_box_dir_end
@z
@x [10.141] l.3089 - pTeX: disp_node
@ A |mark_node| has a |mark_ptr| field that points to the reference count
@y
@ A |disp_node| has a |disp_dimen| field that points to the displacement
distance of the baselineshift between Latin characters and Kanji chatacters.
@d disp_node=5 {|type| of a displace node}
@d disp_dimen(#)==mem[#+1].sc
@ A |mark_node| has a |mark_ptr| field that points to the reference count
@z
@x [10.140] l.3095 - pTeX: renumber nodes
@d mark_node=4 {|type| of a mark node}
@y
@d mark_node=6 {|type| of a mark node}
@z
@x [10.141] l.3105 - pTeX: renumber nodes
@d adjust_node=5 {|type| of an adjust node}
@y
@d adjust_node=7 {|type| of an adjust node}
@z
@x [10.142] l.3122 - pTeX: renumber nodes
@d ligature_node=6 {|type| of a ligature node}
@y
@d ligature_node=8 {|type| of a ligature node}
@z
@x [10.145] l.3163 - pTeX: renumber nodes
@d disc_node=7 {|type| of a discretionary node}
@y
@d disc_node=9 {|type| of a discretionary node}
@z
@x [10.146] l.3191 - pTeX: renumber nodes
@d whatsit_node=8 {|type| of special extension nodes}
@y
@d whatsit_node=10 {|type| of special extension nodes}
@z
@x [10.147] l.3198 - pTeX: renumber nodes
@d math_node=9 {|type| of a math node}
@y
@d math_node=11 {|type| of a math node}
@z
@x [10.150] l.3244 - pTeX: renumber nodes
@d glue_node=10 {|type| of node that points to a glue specification}
@y
@d glue_node=12 {|type| of node that points to a glue specification}
@z
@x [10.155] l.3342 - pTeX: renumber nodes
@d kern_node=11 {|type| of a kern node}
@d explicit=1 {|subtype| of kern nodes from \.{\\kern} and \.{\\/}}
@d acc_kern=2 {|subtype| of kern nodes from accents}
@y
@d kern_node=13 {|type| of a kern node}
@d explicit=1 {|subtype| of kern nodes from \.{\\kern}}
@d acc_kern=2 {|subtype| of kern nodes from accents}
@d ita_kern=3 {|subtype| of kern nodes from \.{\\/}}
@z
@x [10.157] l.3363 - pTeX: renumber nodes
@d penalty_node=12 {|type| of a penalty node}
@y
@d penalty_node=14 {|type| of a penalty node}
@d widow_pena=1 {|subtype| of penalty nodes from \.{\\jcharwidowpenalty}}
@d kinsoku_pena=2 {|subtype| of penalty nodes from kinsoku}
@z
@x [10.159] l.3392 - pTeX: renumber nodes
@d unset_node=13 {|type| for an unset node}
@y
@d unset_node=15 {|type| for an unset node}
@z
@x [10.160] l.3397 - pTeX: renumber nodes
@ In fact, there are still more types coming. When we get to math formula
processing we will see that a |style_node| has |type=14|; and a number
of larger type codes will also be defined, for use in math mode only.
@y
@ In fact, there are still more types coming. When we get to math formula
processing we will see that a |style_node| has |type=16|; and a number
of larger type codes will also be defined, for use in math mode only.
@z
@x [12.???] pTeX: \ptexfontname, \ptextracingfonts
@p procedure short_display(@!p:integer); {prints highlights of list |p|}
@y
@p@t\4@>@<Declare the pTeX-specific |print_font_...| procedures@>@;@/
procedure short_display(@!p:integer); {prints highlights of list |p|}
@z
@x [12.174] l.3662 - pTeX: print KANJI
print_ASCII(qo(character(p)));
@y
if font_dir[font(p)]<>dir_default then
begin p:=link(p); print_kanji(info(p));
end
else print_ASCII(qo(character(p)));
@z
@x [12.175] l.3672 - pTeX: Print a short indication of dir_nodes.
hlist_node,vlist_node,ins_node,whatsit_node,mark_node,adjust_node,
unset_node: print("[]");
@y
hlist_node,vlist_node,dir_node,ins_node,whatsit_node,
mark_node,adjust_node,unset_node: print("[]");
@z
@x [12.176] l.3698 - pTeX: print KANJI.
print_char(" "); print_ASCII(qo(character(p)));
@y
print_char(" ");
if font_dir[font(p)]<>dir_default then
begin p:=link(p); print_kanji(info(p));
end
else print_ASCII(qo(character(p)));
@z
@x [12.183] l.3815 - pTeX: display char_node and disp_node.
if is_char_node(p) then print_font_and_char(p)
else case type(p) of
hlist_node,vlist_node,unset_node: @<Display box |p|@>;
rule_node: @<Display rule |p|@>;
ins_node: @<Display insertion |p|@>;
whatsit_node: @<Display the whatsit node |p|@>;
@y
if is_char_node(p) then
begin print_font_and_char(p);
if font_dir[font(p)]<>dir_default then p:=link(p)
end
else case type(p) of
hlist_node,vlist_node,dir_node,unset_node: @<Display box |p|@>;
rule_node: @<Display rule |p|@>;
ins_node: @<Display insertion |p|@>;
whatsit_node: @<Display the whatsit node |p|@>;
disp_node: begin print_esc("displace "); print_scaled(disp_dimen(p));
end;
@z
@x [12.184] l.3833 - pTeX: display dir_node.
@ @<Display box |p|@>=
begin if type(p)=hlist_node then print_esc("h")
else if type(p)=vlist_node then print_esc("v")
else print_esc("unset");
@y
@ @<Display box |p|@>=
begin case type(p) of
hlist_node: print_esc("h");
vlist_node: print_esc("v");
dir_node: print_esc("dir");
othercases print_esc("unset")
endcases@/;
@z
@x [12.184] l.3842 - pTeX: display dir_node.
if shift_amount(p)<>0 then
begin print(", shifted "); print_scaled(shift_amount(p));
end;
@y
if shift_amount(p)<>0 then
begin print(", shifted "); print_scaled(shift_amount(p));
end;
@z
@x [12.184] l.3845 - pTeX: display dir_node.
end;
@y
if box_dir(p)<>dir_default then
begin print(", "); print_direction(box_dir(p));
end;
end;
@z
@x [12.188] l.3896 - pTeX: Display insertion and ins_dir.
@ @<Display insertion |p|@>=
begin print_esc("insert"); print_int(qo(subtype(p)));
print(", natural size "); print_scaled(height(p));
@y
@ @<Display insertion |p|@>=
begin print_esc("insert"); print_int(qo(subtype(p)));
print_dir(abs(ins_dir(p)));
print(", natural size "); print_scaled(height(p));
@z
@x [12.194] l.3961 - pTeX: Display penalty usage
@ @<Display penalty |p|@>=
begin print_esc("penalty "); print_int(penalty(p));
end
@y
@ @<Display penalty |p|@>=
begin print_esc("penalty "); print_int(penalty(p));
if subtype(p)=widow_pena then print("(for \jcharwidowpenalty)")
else if subtype(p)=kinsoku_pena then print("(for kinsoku)");
end
@z
@x [13.202] l.4043 - pTeX: dir_node, disp_node
hlist_node,vlist_node,unset_node: begin flush_node_list(list_ptr(p));
free_node(p,box_node_size); goto done;
end;
@y
hlist_node,vlist_node,dir_node,unset_node:
begin flush_node_list(list_ptr(p));
fast_delete_glue_ref(space_ptr(p));
fast_delete_glue_ref(xspace_ptr(p));
free_node(p,box_node_size); goto done;
end;
@z
@x [13.202] l.4056 - pTeX:
kern_node,math_node,penalty_node: do_nothing;
@y
disp_node,
kern_node,math_node,penalty_node: do_nothing;
@z
@x [14.206] l.4121 - pTeX: space_ptr, xspace_ptr, dir_node, disp_node
@ @<Case statement to copy...@>=
@y
@ @<Case statement to copy...@>=
@z
@x [14.206] l.4123
hlist_node,vlist_node,unset_node: begin r:=get_node(box_node_size);
mem[r+6]:=mem[p+6]; mem[r+5]:=mem[p+5]; {copy the last two words}
@y
dir_node,
hlist_node,vlist_node,unset_node: begin r:=get_node(box_node_size);
mem[r+7]:=mem[p+7];
mem[r+6]:=mem[p+6]; mem[r+5]:=mem[p+5]; {copy the last three words}
add_glue_ref(space_ptr(r)); add_glue_ref(xspace_ptr(r));
@z
@x [14.206] l.4130
ins_node: begin r:=get_node(ins_node_size); mem[r+4]:=mem[p+4];
add_glue_ref(split_top_ptr(p));
ins_ptr(r):=copy_node_list(ins_ptr(p)); {this affects |mem[r+4]|}
words:=ins_node_size-1;
end;
@y
ins_node: begin r:=get_node(ins_node_size);
mem[r+5]:=mem[p+5]; mem[r+4]:=mem[p+4];
add_glue_ref(split_top_ptr(p));
ins_ptr(r):=copy_node_list(ins_ptr(p)); {this affects |mem[r+4]|}
words:=ins_node_size-2;
end;
@z
@x [14.206] l.4140 - pTeX: disp_node
kern_node,math_node,penalty_node: begin r:=get_node(small_node_size);
@y
disp_node,
kern_node,math_node,penalty_node: begin r:=get_node(small_node_size);
@z
@x [15.207] l.4201 - pTeX: Add kanji, kana, other_kchar category codes.
@d max_char_code=15 {largest catcode for individual characters}
@y
@d kanji=16 {kanji}
@d kana=17 {hiragana, katakana, alphabet}
@d other_kchar=18 {kanji codes}
@d max_char_code=18 {largest catcode for individual characters}
@z
@x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
@d char_num=16 {character specified numerically ( \.{\\char} )}
@d math_char_num=17 {explicit math code ( \.{\\mathchar} )}
@d mark=18 {mark definition ( \.{\\mark} )}
@d xray=19 {peek inside of \TeX\ ( \.{\\show}, \.{\\showbox}, etc.~)}
@d make_box=20 {make a box ( \.{\\box}, \.{\\copy}, \.{\\hbox}, etc.~)}
@d hmove=21 {horizontal motion ( \.{\\moveleft}, \.{\\moveright} )}
@d vmove=22 {vertical motion ( \.{\\raise}, \.{\\lower} )}
@d un_hbox=23 {unglue a box ( \.{\\unhbox}, \.{\\unhcopy} )}
@d un_vbox=24 {unglue a box ( \.{\\unvbox}, \.{\\unvcopy} )}
@y
@d char_num=max_char_code+1 {character specified numerically ( \.{\\char} )}
@d math_char_num=char_num+1 {explicit math code ( \.{\\mathchar} )}
@d mark=math_char_num+1 {mark definition ( \.{\\mark} )}
@d xray=mark+1 {peek inside of \TeX\ ( \.{\\show}, \.{\\showbox}, etc.~)}
@d make_box=xray+1 {make a box ( \.{\\box}, \.{\\copy}, \.{\\hbox}, etc.~)}
@d hmove=make_box+1 {horizontal motion ( \.{\\moveleft}, \.{\\moveright} )}
@d vmove=hmove+1 {vertical motion ( \.{\\raise}, \.{\\lower} )}
@d un_hbox=vmove+1 {unglue a box ( \.{\\unhbox}, \.{\\unhcopy} )}
@d un_vbox=un_hbox+1 {unglue a box ( \.{\\unvbox}, \.{\\unvcopy} )}
@z
@x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
@d remove_item=25 {nullify last item ( \.{\\unpenalty},
\.{\\unkern}, \.{\\unskip} )}
@d hskip=26 {horizontal glue ( \.{\\hskip}, \.{\\hfil}, etc.~)}
@d vskip=27 {vertical glue ( \.{\\vskip}, \.{\\vfil}, etc.~)}
@d mskip=28 {math glue ( \.{\\mskip} )}
@d kern=29 {fixed space ( \.{\\kern} )}
@d mkern=30 {math kern ( \.{\\mkern} )}
@d leader_ship=31 {use a box ( \.{\\shipout}, \.{\\leaders}, etc.~)}
@d halign=32 {horizontal table alignment ( \.{\\halign} )}
@d valign=33 {vertical table alignment ( \.{\\valign} )}
@y
@d remove_item=un_vbox+1 {nullify last item ( \.{\\unpenalty},
\.{\\unkern}, \.{\\unskip} )}
@d hskip=remove_item+1 {horizontal glue ( \.{\\hskip}, \.{\\hfil}, etc.~)}
@d vskip=hskip+1 {vertical glue ( \.{\\vskip}, \.{\\vfil}, etc.~)}
@d mskip=vskip+1 {math glue ( \.{\\mskip} )}
@d kern=mskip+1 {fixed space ( \.{\\kern} )}
@d mkern=kern+1 {math kern ( \.{\\mkern} )}
@d leader_ship=mkern+1 {use a box ( \.{\\shipout}, \.{\\leaders}, etc.~)}
@d halign=leader_ship+1 {horizontal table alignment ( \.{\\halign} )}
@d valign=halign+1 {vertical table alignment ( \.{\\valign} )}
@z
@x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
@d no_align=34 {temporary escape from alignment ( \.{\\noalign} )}
@d vrule=35 {vertical rule ( \.{\\vrule} )}
@d hrule=36 {horizontal rule ( \.{\\hrule} )}
@d insert=37 {vlist inserted in box ( \.{\\insert} )}
@d vadjust=38 {vlist inserted in enclosing paragraph ( \.{\\vadjust} )}
@d ignore_spaces=39 {gobble |spacer| tokens ( \.{\\ignorespaces} )}
@d after_assignment=40 {save till assignment is done ( \.{\\afterassignment} )}
@d after_group=41 {save till group is done ( \.{\\aftergroup} )}
@d break_penalty=42 {additional badness ( \.{\\penalty} )}
@d start_par=43 {begin paragraph ( \.{\\indent}, \.{\\noindent} )}
@d ital_corr=44 {italic correction ( \.{\\/} )}
@d accent=45 {attach accent in text ( \.{\\accent} )}
@d math_accent=46 {attach accent in math ( \.{\\mathaccent} )}
@d discretionary=47 {discretionary texts ( \.{\\-}, \.{\\discretionary} )}
@d eq_no=48 {equation number ( \.{\\eqno}, \.{\\leqno} )}
@d left_right=49 {variable delimiter ( \.{\\left}, \.{\\right} )}
@y
@d no_align=valign+1 {temporary escape from alignment ( \.{\\noalign} )}
@d vrule=no_align+1 {vertical rule ( \.{\\vrule} )}
@d hrule=vrule+1 {horizontal rule ( \.{\\hrule} )}
@d insert=hrule+1 {vlist inserted in box ( \.{\\insert} )}
@d vadjust=insert+1 {vlist inserted in enclosing paragraph ( \.{\\vadjust} )}
@d ignore_spaces=vadjust+1 {gobble |spacer| tokens ( \.{\\ignorespaces} )}
@d after_assignment=ignore_spaces+1 {save till assignment is done ( \.{\\afterassignment} )}
@d after_group=after_assignment+1 {save till group is done ( \.{\\aftergroup} )}
@d break_penalty=after_group+1 {additional badness ( \.{\\penalty} )}
@d start_par=break_penalty+1 {begin paragraph ( \.{\\indent}, \.{\\noindent} )}
@d ital_corr=start_par+1 {italic correction ( \.{\\/} )}
@d accent=ital_corr+1 {attach accent in text ( \.{\\accent} )}
@d math_accent=accent+1 {attach accent in math ( \.{\\mathaccent} )}
@d discretionary=math_accent+1 {discretionary texts ( \.{\\-}, \.{\\discretionary} )}
@d eq_no=discretionary+1 {equation number ( \.{\\eqno}, \.{\\leqno} )}
@d left_right=eq_no+1 {variable delimiter ( \.{\\left}, \.{\\right} )}
@z
@x [15.208] l.4207 - pTeX: Add inhibit_glue, chg_dir.
@d math_comp=50 {component of formula ( \.{\\mathbin}, etc.~)}
@d limit_switch=51 {diddle limit conventions ( \.{\\displaylimits}, etc.~)}
@d above=52 {generalized fraction ( \.{\\above}, \.{\\atop}, etc.~)}
@d math_style=53 {style specification ( \.{\\displaystyle}, etc.~)}
@d math_choice=54 {choice specification ( \.{\\mathchoice} )}
@d non_script=55 {conditional math glue ( \.{\\nonscript} )}
@d vcenter=56 {vertically center a vbox ( \.{\\vcenter} )}
@d case_shift=57 {force specific case ( \.{\\lowercase}, \.{\\uppercase}~)}
@d message=58 {send to user ( \.{\\message}, \.{\\errmessage} )}
@d extension=59 {extensions to \TeX\ ( \.{\\write}, \.{\\special}, etc.~)}
@d in_stream=60 {files for reading ( \.{\\openin}, \.{\\closein} )}
@d begin_group=61 {begin local grouping ( \.{\\begingroup} )}
@d end_group=62 {end local grouping ( \.{\\endgroup} )}
@d omit=63 {omit alignment template ( \.{\\omit} )}
@d ex_space=64 {explicit space ( \.{\\\ } )}
@d no_boundary=65 {suppress boundary ligatures ( \.{\\noboundary} )}
@d radical=66 {square root and similar signs ( \.{\\radical} )}
@d end_cs_name=67 {end control sequence ( \.{\\endcsname} )}
@d min_internal=68 {the smallest code that can follow \.{\\the}}
@d char_given=68 {character code defined by \.{\\chardef}}
@d math_given=69 {math code defined by \.{\\mathchardef}}
@d last_item=70 {most recent item ( \.{\\lastpenalty},
\.{\\lastkern}, \.{\\lastskip} )}
@d max_non_prefixed_command=70 {largest command code that can't be \.{\\global}}
@y
@d math_comp=left_right+1 {component of formula ( \.{\\mathbin}, etc.~)}
@d limit_switch=math_comp+1 {diddle limit conventions ( \.{\\displaylimits}, etc.~)}
@d above=limit_switch+1 {generalized fraction ( \.{\\above}, \.{\\atop}, etc.~)}
@d math_style=above+1 {style specification ( \.{\\displaystyle}, etc.~)}
@d math_choice=math_style+1 {choice specification ( \.{\\mathchoice} )}
@d non_script=math_choice+1 {conditional math glue ( \.{\\nonscript} )}
@d vcenter=non_script+1 {vertically center a vbox ( \.{\\vcenter} )}
@d case_shift=vcenter+1 {force specific case ( \.{\\lowercase}, \.{\\uppercase}~)}
@d message=case_shift+1 {send to user ( \.{\\message}, \.{\\errmessage} )}
@d extension=message+1 {extensions to \TeX\ ( \.{\\write}, \.{\\special}, etc.~)}
@d in_stream=extension+1 {files for reading ( \.{\\openin}, \.{\\closein} )}
@d begin_group=in_stream+1 {begin local grouping ( \.{\\begingroup} )}
@d end_group=begin_group+1 {end local grouping ( \.{\\endgroup} )}
@d omit=end_group+1 {omit alignment template ( \.{\\omit} )}
@d ex_space=omit+1 {explicit space ( \.{\\\ } )}
@d no_boundary=ex_space+1 {suppress boundary ligatures ( \.{\\noboundary} )}
@d radical=no_boundary+1 {square root and similar signs ( \.{\\radical} )}
@d end_cs_name=radical+1 {end control sequence ( \.{\\endcsname} )}
@d min_internal=end_cs_name+1 {the smallest code that can follow \.{\\the}}
@d char_given=min_internal {character code defined by \.{\\chardef}}
@d math_given=char_given+1 {math code defined by \.{\\mathchardef}}
@d last_item=math_given+1 {most recent item ( \.{\\lastpenalty},
\.{\\lastkern}, \.{\\lastskip} )}
@d inhibit_glue=last_item+1 {inhibit adjust glue ( \.{\\inhibitglue} )}
@d chg_dir=inhibit_glue+1 {change dir mode by \.{\\tate}, \.{\\yoko}}
@d max_non_prefixed_command=chg_dir {largest command code that can't be \.{\\global}}
@z
@x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
@d toks_register=71 {token list register ( \.{\\toks} )}
@d assign_toks=72 {special token list ( \.{\\output}, \.{\\everypar}, etc.~)}
@d assign_int=73 {user-defined integer ( \.{\\tolerance}, \.{\\day}, etc.~)}
@d assign_dimen=74 {user-defined length ( \.{\\hsize}, etc.~)}
@d assign_glue=75 {user-defined glue ( \.{\\baselineskip}, etc.~)}
@d assign_mu_glue=76 {user-defined muglue ( \.{\\thinmuskip}, etc.~)}
@d assign_font_dimen=77 {user-defined font dimension ( \.{\\fontdimen} )}
@d assign_font_int=78 {user-defined font integer ( \.{\\hyphenchar},
\.{\\skewchar} )}
@d set_aux=79 {specify state info ( \.{\\spacefactor}, \.{\\prevdepth} )}
@d set_prev_graf=80 {specify state info ( \.{\\prevgraf} )}
@d set_page_dimen=81 {specify state info ( \.{\\pagegoal}, etc.~)}
@d set_page_int=82 {specify state info ( \.{\\deadcycles},
@y
@d toks_register=max_non_prefixed_command+1 {token list register ( \.{\\toks} )}
@d assign_toks=toks_register+1
{special token list ( \.{\\output}, \.{\\everypar}, etc.~)}
@d assign_int=assign_toks+1
{user-defined integer ( \.{\\tolerance}, \.{\\day}, etc.~)}
@d assign_dimen=assign_int+1 {user-defined length ( \.{\\hsize}, etc.~)}
@d assign_glue=assign_dimen+1 {user-defined glue ( \.{\\baselineskip}, etc.~)}
@d assign_mu_glue=assign_glue+1 {user-defined muglue ( \.{\\thinmuskip}, etc.~)}
@d assign_font_dimen=assign_mu_glue+1
{user-defined font dimension ( \.{\\fontdimen} )}
@d assign_font_int=assign_font_dimen+1
{user-defined font integer ( \.{\\hyphenchar}, \.{\\skewchar} )}
@d assign_kinsoku=assign_font_int+1
{user-defined kinsoku character ( \.{\\prebreakpenalty},
\.{\\postbreakpenalty} )}
@d assign_inhibit_xsp_code=assign_kinsoku+1
{user-defined inhibit xsp character ( \.{\\inhibitxspcode} )}
@d set_kansuji_char=assign_inhibit_xsp_code+1
{user-defined kansuji character ( \.{\\kansujichar} )}
@d set_aux=set_kansuji_char+1
{specify state info ( \.{\\spacefactor}, \.{\\prevdepth} )}
@d set_prev_graf=set_aux+1 {specify state info ( \.{\\prevgraf} )}
@d set_page_dimen=set_prev_graf+1 {specify state info ( \.{\\pagegoal}, etc.~)}
@d set_page_int=set_page_dimen+1 {specify state info ( \.{\\deadcycles},
@z
@x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
@d set_box_dimen=83 {change dimension of box ( \.{\\wd}, \.{\\ht}, \.{\\dp} )}
@d set_shape=84 {specify fancy paragraph shape ( \.{\\parshape} )}
@y
@d set_box_dimen=set_page_int+1 {change dimension of box ( \.{\\wd}, \.{\\ht}, \.{\\dp} )}
@d set_shape=set_box_dimen+1 {specify fancy paragraph shape ( \.{\\parshape} )}
@z
@x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
@d def_code=85 {define a character code ( \.{\\catcode}, etc.~)}
@d def_family=86 {declare math fonts ( \.{\\textfont}, etc.~)}
@d set_font=87 {set current font ( font identifiers )}
@d def_font=88 {define a font file ( \.{\\font} )}
@d register=89 {internal register ( \.{\\count}, \.{\\dimen}, etc.~)}
@d max_internal=89 {the largest code that can follow \.{\\the}}
@d advance=90 {advance a register or parameter ( \.{\\advance} )}
@d multiply=91 {multiply a register or parameter ( \.{\\multiply} )}
@d divide=92 {divide a register or parameter ( \.{\\divide} )}
@d prefix=93 {qualify a definition ( \.{\\global}, \.{\\long}, \.{\\outer} )}
@y
@d def_code=set_shape+1 {define a character code ( \.{\\catcode}, etc.~)}
@d def_family=def_code+1 {declare math fonts ( \.{\\textfont}, etc.~)}
@d set_font=def_family+1 {set current font ( font identifiers )}
@d def_font=set_font+1 {define a font file ( \.{\\font} )}
@d def_jfont=def_font+1 {define a font file ( \.{\\jfont} )}
@d def_tfont=def_jfont+1 {define a font file ( \.{\\tfont} )}
@d register=def_tfont+1 {internal register ( \.{\\count}, \.{\\dimen}, etc.~)}
@d max_internal=register {the largest code that can follow \.{\\the}}
@d advance=max_internal+1 {advance a register or parameter ( \.{\\advance} )}
@d multiply=advance+1 {multiply a register or parameter ( \.{\\multiply} )}
@d divide=multiply+1 {divide a register or parameter ( \.{\\divide} )}
@d prefix=divide+1 {qualify a definition ( \.{\\global}, \.{\\long}, \.{\\outer} )}
@z
@x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
@d let=94 {assign a command code ( \.{\\let}, \.{\\futurelet} )}
@d shorthand_def=95 {code definition ( \.{\\chardef}, \.{\\countdef}, etc.~)}
{or \.{\\charsubdef}}
@d read_to_cs=96 {read into a control sequence ( \.{\\read} )}
@y
@d let=prefix+1 {assign a command code ( \.{\\let}, \.{\\futurelet} )}
@d shorthand_def=let+1 {code definition ( \.{\\chardef}, \.{\\countdef}, etc.~)}
{or \.{\\charsubdef}}
@d read_to_cs=shorthand_def+1 {read into a control sequence ( \.{\\read} )}
@z
@x [15.209] l.4272 - pTeX: def_jfont, def_tfont, set_auto_spacing
@d def=97 {macro definition ( \.{\\def}, \.{\\gdef}, \.{\\xdef}, \.{\\edef} )}
@d set_box=98 {set a box ( \.{\\setbox} )}
@d hyph_data=99 {hyphenation data ( \.{\\hyphenation}, \.{\\patterns} )}
@d set_interaction=100 {define level of interaction ( \.{\\batchmode}, etc.~)}
@d max_command=100 {the largest command code seen at |big_switch|}
@y
@d def=read_to_cs+1 {macro definition ( \.{\\def}, \.{\\gdef}, \.{\\xdef}, \.{\\edef} )}
@d set_box=def+1 {set a box ( \.{\\setbox} )}
@d hyph_data=set_box+1 {hyphenation data ( \.{\\hyphenation}, \.{\\patterns} )}
@d set_interaction=hyph_data+1 {define level of interaction ( \.{\\batchmode}, etc.~)}
@d set_auto_spacing=set_interaction+1 {set auto spacing mode
( \.{\\autospacing}, \.{\\noautospacing}, \.{\\autoxspacing}, \.{\\noautoxspacing} )}
@d partoken_name=set_auto_spacing+1 {set |par_token| name}
@d max_command=partoken_name {the largest command code seen at |big_switch|}
@z
@x [16.212] l.4437 - pTeX: last_jchr, direction, adjust direction
@<Types...@>=
@!list_state_record=record@!mode_field:-mmode..mmode;@+
@!head_field,@!tail_field: pointer;
@y
@<Types...@>=
@!list_state_record=record@!mode_field:-mmode..mmode;@+
@!dir_field,@!adj_dir_field: -dir_yoko..dir_yoko;
@!pdisp_field: scaled;
@!head_field,@!tail_field,@!pnode_field,@!last_jchr_field: pointer;
@!disp_called_field: boolean;
@!inhibit_glue_flag_field: integer;
@z
@x [16.213] l.4445 - pTeX: last_jchr, direction, adjust_dir, prev_{node,disp}
@d head==cur_list.head_field {header node of current list}
@d tail==cur_list.tail_field {final node on current list}
@y
@d direction==cur_list.dir_field {current direction}
@d adjust_dir==cur_list.adj_dir_field {current adjust direction}
@d head==cur_list.head_field {header node of current list}
@d tail==cur_list.tail_field {final node on current list}
@d prev_node==cur_list.pnode_field {previous to last |disp_node|}
@d prev_disp==cur_list.pdisp_field {displacemant at |prev_node|}
@d last_jchr==cur_list.last_jchr_field {final jchar node on current list}
@d disp_called==cur_list.disp_called_field {is a |disp_node| present in the current list?}
@d inhibit_glue_flag==cur_list.inhibit_glue_flag_field {is \.{\\inhibitglue} specified at the current list?}
@z
@x [16.214] l.4464 - pTeX: prev_append: disp_node
@d tail_append(#)==begin link(tail):=#; tail:=link(tail);
end
@y
@d tail_append(#)==begin link(tail):=#; tail:=link(tail);
end
@d prev_append(#)==begin link(prev_node):=#;
link(link(prev_node)):=tail; prev_node:=link(prev_node);
end
@z
@x [16.215] l.4477 - pTeX: last_jchr, direction, adjust_dir, prev_node
mode:=vmode; head:=contrib_head; tail:=contrib_head;
@y
mode:=vmode; head:=contrib_head; tail:=contrib_head; prev_node:=tail;
direction:=dir_yoko; adjust_dir:=direction; prev_disp:=0; last_jchr:=null;
disp_called:=false;
@z
@x [16.216] l.4496 - pTeX: last_jchr, displacement.
incr(nest_ptr); head:=get_avail; tail:=head; prev_graf:=0; mode_line:=line;
@y
incr(nest_ptr); head:=new_null_box; tail:=head; prev_node:=tail;
prev_graf:=0; prev_disp:=0; disp_called:=false; last_jchr:=null; mode_line:=line;
@z
@x [16.217] l.4504 - pTeX: pop_nest last_jchr
@p procedure pop_nest; {leave a semantic level, re-enter the old}
begin free_avail(head); decr(nest_ptr); cur_list:=nest[nest_ptr];
end;
@y
@p procedure pop_nest; {leave a semantic level, re-enter the old}
begin
fast_delete_glue_ref(space_ptr(head)); fast_delete_glue_ref(xspace_ptr(head));
free_node(head,box_node_size); decr(nest_ptr); cur_list:=nest[nest_ptr];
end;
@z
@x [16.218] l.4521 - pTeX: show_activities : direction
print_nl("### "); print_mode(m);
@y
print_nl("### "); print_direction(nest[p].dir_field);
print(", "); print_mode(m);
@z
@x [17.224] l.4711 - pTeX: kanji_skip_code xkanji_skip_code, jfm_skip
@d thin_mu_skip_code=15 {thin space in math formula}
@d med_mu_skip_code=16 {medium space in math formula}
@d thick_mu_skip_code=17 {thick space in math formula}
@d glue_pars=18 {total number of glue parameters}
@y
@d kanji_skip_code=15 {between kanji-kanji space}
@d xkanji_skip_code=16 {between latin-kanji or kanji-latin space}
@d thin_mu_skip_code=17 {thin space in math formula}
@d med_mu_skip_code=18 {medium space in math formula}
@d thick_mu_skip_code=19 {thick space in math formula}
@d jfm_skip=20 {space refer from JFM}
@d glue_pars=21 {total number of glue parameters}
@z
@x [17.224] l.4739 - kanji_skip, xkanji_skip
@d thick_mu_skip==glue_par(thick_mu_skip_code)
@y
@d thick_mu_skip==glue_par(thick_mu_skip_code)
@d kanji_skip==glue_par(kanji_skip_code)
@d xkanji_skip==glue_par(xkanji_skip_code)
@z
@x [17.225] l.4767 - pTeX: kanji_skip_code xkanji_skip_code
thick_mu_skip_code: print_esc("thickmuskip");
othercases print("[unknown glue parameter!]")
@y
thick_mu_skip_code: print_esc("thickmuskip");
kanji_skip_code: print_esc("kanjiskip");
xkanji_skip_code: print_esc("xkanjiskip");
jfm_skip: print("refer from jfm");
othercases print("[unknown glue parameter!]")
@z
@x [17.226] l.4813 - pTeX: kanji_skip_code xkanji_skip_code
primitive("thickmuskip",assign_mu_glue,glue_base+thick_mu_skip_code);@/
@!@:thick_mu_skip_}{\.{\\thickmuskip} primitive@>
@y
primitive("thickmuskip",assign_mu_glue,glue_base+thick_mu_skip_code);@/
@!@:thick_mu_skip_}{\.{\\thickmuskip} primitive@>
primitive("kanjiskip",assign_glue,glue_base+kanji_skip_code);@/
@!@:kanji_skip_}{\.{\\kanjiskip} primitive@>
primitive("xkanjiskip",assign_glue,glue_base+xkanji_skip_code);@/
@!@:xkanji_skip_}{\.{\\xkanjiskip} primitive@>
@z
@x [17.230] l.4867 - pTeX: cat_code_size, cur_jfont_loc, auto_spacing, auto_xspacing, inhibit_xsp_code, cur_tfont_loc
@d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
@d cat_code_base=math_font_base+48
{table of 256 command codes (the ``catcodes'')}
@d lc_code_base=cat_code_base+256 {table of 256 lowercase mappings}
@y
@d math_font_base=cur_font_loc+1 {table of 48 math font numbers}
@d cur_jfont_loc=math_font_base+48
@d cur_tfont_loc=cur_jfont_loc+1
@d auto_spacing_code=cur_tfont_loc+1
@d auto_xspacing_code=auto_spacing_code+1
@d cat_code_base=auto_xspacing_code+1
{table of 256 command codes (the ``catcodes'')}
@d kcat_code_base=cat_code_base+256
{table of 256 command codes for the wchar's catcodes }
@d auto_xsp_code_base=kcat_code_base+256 {table of 256 auto spacer flag}
@d inhibit_xsp_code_base=auto_xsp_code_base+256
@d kinsoku_base=inhibit_xsp_code_base+1024 {table of 1024 kinsoku mappings}
@d kansuji_base=kinsoku_base+1024 {table of 10 kansuji mappings}
@d lc_code_base=kansuji_base+10 {table of 256 lowercase mappings}
@z
@x [17.230] l.4900 - pTeX:
@d char_sub_code(#)==equiv(char_sub_code_base+#)
{Note: |char_sub_code(c)| is the true substitution info plus |min_halfword|}
@y
@d char_sub_code(#)==equiv(char_sub_code_base+#)
{Note: |char_sub_code(c)| is the true substitution info plus |min_halfword|}
@#
@d cur_jfont==equiv(cur_jfont_loc) {pTeX: }
@d cur_tfont==equiv(cur_tfont_loc)
@d auto_spacing==equiv(auto_spacing_code)
@d auto_xspacing==equiv(auto_xspacing_code)
@d kcat_code(#)==equiv(kcat_code_base+#)
@d auto_xsp_code(#)==equiv(auto_xsp_code_base+#)
@d inhibit_xsp_type(#)==eq_type(inhibit_xsp_code_base+#)
@d inhibit_xsp_code(#)==equiv(inhibit_xsp_code_base+#)
@d kinsoku_type(#)==eq_type(kinsoku_base+#)
@d kinsoku_code(#)==equiv(kinsoku_base+#)
@d kansuji_char(#)==equiv(kansuji_base+#)
@z
@x [17.232] l.4959 - pTeX: initialize cat_code, cur_jfont, cur_tfont
cur_font:=null_font; eq_type(cur_font_loc):=data;
eq_level(cur_font_loc):=level_one;@/
@y
cur_font:=null_font; eq_type(cur_font_loc):=data;
eq_level(cur_font_loc):=level_one;@/
cur_jfont:=null_font; eq_type(cur_jfont_loc):=data;
eq_level(cur_jfont_loc):=level_one;@/
cur_tfont:=null_font; eq_type(cur_tfont_loc):=data;
eq_level(cur_tfont_loc):=level_one;@/
@z
@x [17.232] l.4965 - pTeX: initialize cat_code, cur_jfont, cur_tfont
for k:=0 to 255 do
begin cat_code(k):=other_char; math_code(k):=hi(k); sf_code(k):=1000;
end;
@y
eqtb[auto_spacing_code]:=eqtb[cat_code_base];
eqtb[auto_xspacing_code]:=eqtb[cat_code_base];
for k:=0 to 255 do
begin cat_code(k):=other_char; kcat_code(k):=other_kchar;
math_code(k):=hi(k); sf_code(k):=1000;
auto_xsp_code(k):=0; inhibit_xsp_code(k):=0; inhibit_xsp_type(k):=0;
kinsoku_code(k):=0; kinsoku_type(k):=0;
end;
@z
@x [17.232] l.4971 - pTeX: initialize cat_code, cur_jfont, cur_tfont
for k:="0" to "9" do math_code(k):=hi(k+var_code);
for k:="A" to "Z" do
begin cat_code(k):=letter; cat_code(k+"a"-"A"):=letter;@/
math_code(k):=hi(k+var_code+@"100);
math_code(k+"a"-"A"):=hi(k+"a"-"A"+var_code+@"100);@/
lc_code(k):=k+"a"-"A"; lc_code(k+"a"-"A"):=k+"a"-"A";@/
uc_code(k):=k; uc_code(k+"a"-"A"):=k;@/
sf_code(k):=999;
end;
@y
for k:="0" to "9" do
begin math_code(k):=hi(k+var_code);
auto_xsp_code(k):=3;
end;
kansuji_char(0):=toDVI(fromJIS(@"213B));
kansuji_char(1):=toDVI(fromJIS(@"306C));
kansuji_char(2):=toDVI(fromJIS(@"4673));
kansuji_char(3):=toDVI(fromJIS(@"3B30));
kansuji_char(4):=toDVI(fromJIS(@"3B4D));
kansuji_char(5):=toDVI(fromJIS(@"385E));
kansuji_char(6):=toDVI(fromJIS(@"4F3B));
kansuji_char(7):=toDVI(fromJIS(@"3C37));
kansuji_char(8):=toDVI(fromJIS(@"482C));
kansuji_char(9):=toDVI(fromJIS(@"3665));
for k:="A" to "Z" do
begin cat_code(k):=letter; cat_code(k+"a"-"A"):=letter;@/
math_code(k):=hi(k+var_code+@"100);
math_code(k+"a"-"A"):=hi(k+"a"-"A"+var_code+@"100);@/
lc_code(k):=k+"a"-"A"; lc_code(k+"a"-"A"):=k+"a"-"A";@/
uc_code(k):=k; uc_code(k+"a"-"A"):=k;@/
auto_xsp_code(k):=3; auto_xsp_code(k+"a"-"A"):=3;@/
sf_code(k):=999;
end;
@t\hskip10pt@>kcat_code(@"20+1):=other_kchar; {1 ku}
@t\hskip10pt@>kcat_code(@"20+2):=other_kchar; {2 ku}
@+@t\1@>for k:=3 to 6 do kcat_code(@"20+k):=kana; {3 ku ... 6 ku}
@+@t\1@>for k:=7 to 8 do kcat_code(@"20+k):=other_kchar; {7 ku ... 8 ku}
@+@t\1@>for k:=16 to 84 do kcat_code(@"20+k):=kanji; {16 ku ... 84 ku}
{ $\.{@@"20}+|k| = |kcatcodekey|(|fromKUTEN|(|HILO|(k,1))$ }
@z
@x
@ @<Show the halfword code in |eqtb[n]|@>=
if n<math_code_base then
begin if n<lc_code_base then
begin print_esc("catcode"); print_int(n-cat_code_base);
end
@y
@ @<Show the halfword code in |eqtb[n]|@>=
if n<math_code_base then
begin if n<kcat_code_base then
begin print_esc("catcode"); print_int(n-cat_code_base);
end
else if n<auto_xsp_code_base then
begin print_esc("kcatcode"); print_int(n-kcat_code_base);
end
else if n<inhibit_xsp_code_base then
begin print_esc("xspcode"); print_int(n-auto_xsp_code_base);
end
else if n<kinsoku_base then
begin print("inhibitxspcode table "); print_int(n-inhibit_xsp_code_base);
print(", type=");
case eq_type(n) of
0: print("both"); { |inhibit_both| }
1: print("before"); { |inhibit_previous| }
2: print("after"); { |inhibit_after| }
3: print("none"); { |inhibit_none| }
4: print("unused"); { |inhibit_unused| }
end; {there are no other cases}
print(", code");
end
else if n<kansuji_base then
begin print("kinsoku table "); print_int(n-kinsoku_base);
print(", type=");
case eq_type(n) of
0: print("no");
1: print("pre"); { |pre_break_penalty_code| }
2: print("post"); { |post_break_penalty_code| }
3: print("unused"); { |kinsoku_unused_code| }
end; {there are no other cases}
print(", code");
end
else if n<lc_code_base then
begin print_esc("kansujichar"); print_int(n-kansuji_base);
end
@z
@x [17.236] l.5092 - pTeX: cur_jfam_code, jchr_widow_penalty
@d cur_fam_code=44 {current family}
@d escape_char_code=45 {escape character for token output}
@d default_hyphen_char_code=46 {value of \.{\\hyphenchar} when a font is loaded}
@d default_skew_char_code=47 {value of \.{\\skewchar} when a font is loaded}
@d end_line_char_code=48 {character placed at the right end of the buffer}
@d new_line_char_code=49 {character that prints as |print_ln|}
@d language_code=50 {current hyphenation table}
@d left_hyphen_min_code=51 {minimum left hyphenation fragment size}
@d right_hyphen_min_code=52 {minimum right hyphenation fragment size}
@d holding_inserts_code=53 {do not remove insertion nodes from \.{\\box255}}
@d error_context_lines_code=54 {maximum intermediate line pairs shown}
@d tex_int_pars=55 {total number of \TeX's integer parameters}
@y
@d cur_fam_code=44 {current family}
@d cur_jfam_code=45 {current kanji family}
@d escape_char_code=46 {escape character for token output}
@d default_hyphen_char_code=47 {value of \.{\\hyphenchar} when a font is loaded}
@d default_skew_char_code=48 {value of \.{\\skewchar} when a font is loaded}
@d end_line_char_code=49 {character placed at the right end of the buffer}
@d new_line_char_code=50 {character that prints as |print_ln|}
@d language_code=51 {current hyphenation table}
@d left_hyphen_min_code=52 {minimum left hyphenation fragment size}
@d right_hyphen_min_code=53 {minimum right hyphenation fragment size}
@d holding_inserts_code=54 {do not remove insertion nodes from \.{\\box255}}
@d error_context_lines_code=55 {maximum intermediate line pairs shown}
@d jchr_widow_penalty_code=56
{penalty for creating a widow KANJI character line}
@d text_baseline_shift_factor_code=57
@d script_baseline_shift_factor_code=58
@d scriptscript_baseline_shift_factor_code=59
@d ptex_lineend_code=60
@d ptex_tracing_fonts_code=61
@d tex_int_pars=62 {total number of \TeX's integer parameters}
@z
@x [17.236] l.5167 - pTeX: cur_jfam, |jchr_widow_penalty|
@d cur_fam==int_par(cur_fam_code)
@d escape_char==int_par(escape_char_code)
@y
@d cur_fam==int_par(cur_fam_code)
@d cur_jfam==int_par(cur_jfam_code)
@d escape_char==int_par(escape_char_code)
@d jchr_widow_penalty==int_par(jchr_widow_penalty_code)
@d text_baseline_shift_factor==int_par(text_baseline_shift_factor_code)
@d script_baseline_shift_factor==int_par(script_baseline_shift_factor_code)
@d scriptscript_baseline_shift_factor==int_par(scriptscript_baseline_shift_factor_code)
@d ptex_lineend==int_par(ptex_lineend_code)
@d ptex_tracing_fonts==int_par(ptex_tracing_fonts_code)
@z
@x [17.237] l.5244 - pTeX: cur_jfam_code, jchr_window_penalty_code
new_line_char_code:print_esc("newlinechar");
@y
new_line_char_code:print_esc("newlinechar");
cur_jfam_code:print_esc("jfam");
jchr_widow_penalty_code:print_esc("jcharwidowpenalty");
text_baseline_shift_factor_code:print_esc("textbaselineshiftfactor");
script_baseline_shift_factor_code:print_esc("scriptbaselineshiftfactor");
scriptscript_baseline_shift_factor_code:print_esc("scriptscriptbaselineshiftfactor");
ptex_lineend_code:print_esc("ptexlineendmode");
ptex_tracing_fonts_code:print_esc("ptextracingfonts");
@z
@x [17.238] l.5365 - pTeX: cur_jfam_code, jchr_window_penalty_code
primitive("newlinechar",assign_int,int_base+new_line_char_code);@/
@!@:new_line_char_}{\.{\\newlinechar} primitive@>
@y
primitive("newlinechar",assign_int,int_base+new_line_char_code);@/
@!@:new_line_char_}{\.{\\newlinechar} primitive@>
primitive("jfam",assign_int,int_base+cur_jfam_code);@/
@!@:cur_jfam_}{\.{\\jfam} primitive@>
primitive("jcharwidowpenalty",assign_int,int_base+jchr_widow_penalty_code);@/
@!@:jchr_widow_penalty}{\.{\\jcharwidowpenalty} primitive@>
primitive("textbaselineshiftfactor",assign_int,int_base+text_baseline_shift_factor_code);@/
@!@:text_baseline_shift_factor}{\.{\\textbaselineshiftfactor} primitive@>
primitive("scriptbaselineshiftfactor",assign_int,int_base+script_baseline_shift_factor_code);@/
@!@:script_baseline_shift_factor}{\.{\\scriptbaselineshiftfactor} primitive@>
primitive("scriptscriptbaselineshiftfactor",assign_int,int_base+scriptscript_baseline_shift_factor_code);@/
@!@:scriptscript_baseline_shift_factor}{\.{\\scriptscriptbaselineshiftfactor} primitive@>
primitive("ptexlineendmode",assign_int,int_base+ptex_lineend_code);@/
@!@:ptex_lineend_mode_}{\.{\\ptexlineendmode} primitive@>
primitive("ptextracingfonts",assign_int,int_base+ptex_tracing_fonts_code);@/
@!@:ptex_tracing_fonts_}{\.{\\ptextracingfonts} primitive@>
@z
@x [17.247] l.5490 - pTeX: kinsoku, t_baseline_shift, y_baseline_shift
@d h_offset_code=18 {amount of horizontal offset when shipping pages out}
@d v_offset_code=19 {amount of vertical offset when shipping pages out}
@d emergency_stretch_code=20 {reduces badnesses on final pass of line-breaking}
@d dimen_pars=21 {total number of dimension parameters}
@d scaled_base=dimen_base+dimen_pars
{table of 256 user-defined \.{\\dimen} registers}
@d eqtb_size=scaled_base+255 {largest subscript of |eqtb|}
@y
@d h_offset_code=18 {amount of horizontal offset when shipping pages out}
@d v_offset_code=19 {amount of vertical offset when shipping pages out}
@d emergency_stretch_code=20 {reduces badnesses on final pass of line-breaking}
@d t_baseline_shift_code=21 {shift amount when mixing TATE-kumi and Alphabet}
@d y_baseline_shift_code=22 {shift amount when mixing YOKO-kumi and Alphabet}
@d dimen_pars=23 {total number of dimension parameters}
@d scaled_base=dimen_base+dimen_pars
{table of 256 user-defined \.{\\dimen} registers}
@d kinsoku_penalty_base=scaled_base+256 {table of 256 kinsoku registers}
@d eqtb_size=kinsoku_penalty_base+255 {largest subscript of |eqtb|}
@z
@x l.5498 - pTeX: kinsoku, t_baseline_shift, y_baseline_shift
@d dimen(#)==eqtb[scaled_base+#].sc
@d dimen_par(#)==eqtb[dimen_base+#].sc {a scaled quantity}
@y
@d dimen(#)==eqtb[scaled_base+#].sc
@d dimen_par(#)==eqtb[dimen_base+#].sc {a scaled quantity}
@d kinsoku_penalty(#)==eqtb[kinsoku_penalty_base+#].int
@z
@x l.5518 - pTeX:
@d h_offset==dimen_par(h_offset_code)
@d v_offset==dimen_par(v_offset_code)
@y
@d h_offset==dimen_par(h_offset_code)
@d v_offset==dimen_par(v_offset_code)
@d t_baseline_shift==dimen_par(t_baseline_shift_code)
@d y_baseline_shift==dimen_par(y_baseline_shift_code)
@z
@x l.5542 - pTeX:
h_offset_code:print_esc("hoffset");
v_offset_code:print_esc("voffset");
emergency_stretch_code:print_esc("emergencystretch");
othercases print("[unknown dimen parameter!]")
@y
h_offset_code:print_esc("hoffset");
v_offset_code:print_esc("voffset");
t_baseline_shift_code:print_esc("tbaselineshift");
y_baseline_shift_code:print_esc("ybaselineshift");
emergency_stretch_code:print_esc("emergencystretch");
othercases print("[unknown dimen parameter!]")
@z
@x [17.248] l.5588 - pTeX: rotate offset
primitive("hoffset",assign_dimen,dimen_base+h_offset_code);@/
@!@:h_offset_}{\.{\\hoffset} primitive@>
primitive("voffset",assign_dimen,dimen_base+v_offset_code);@/
@!@:v_offset_}{\.{\\voffset} primitive@>
@y
primitive("hoffset",assign_dimen,dimen_base+h_offset_code);@/
@!@:h_offset_}{\.{\\hoffset} primitive@>
primitive("voffset",assign_dimen,dimen_base+v_offset_code);@/
@!@:v_offset_}{\.{\\voffset} primitive@>
primitive("tbaselineshift",assign_dimen,dimen_base+t_baseline_shift_code);@/
@!@:t_baseline_shift_}{\.{\\tbaselineshift} primitive@>
primitive("ybaselineshift",assign_dimen,dimen_base+y_baseline_shift_code);@/
@!@:y_baseline_shift_}{\.{\\ybaselineshift} primitive@>
@z
@x [17.252] l.5622 - pTeX: show eqtb
else if n<=eqtb_size then @<Show equivalent |n|, in region 6@>
else print_char("?"); {this can't happen either}
end;
tats
@y
else if n<kinsoku_penalty_base then @<Show equivalent |n|, in region 6@>
else if n<=eqtb_size then begin
print("kinsoku table "); print_int(n-kinsoku_penalty_base);
print(", penalty="); print_int(eqtb[n].int);
end
else print_char("?"); {this can't happen either}
end;
tats
@z
@x [18] buffer2
for k:=j to j+l-1 do append_char(buffer[k]);
@y
for k:=j to j+l-1 do append_char(buffer2[k]*@"100+buffer[k]);
@z
@x [18.???] l.???? - pTeX multibyte control symbol
procedure print_cs(@!p:integer); {prints a purported control sequence}
@y
procedure print_cs(@!p:integer); {prints a purported control sequence}
var j, l:pool_pointer; @!cat:0..max_char_code;
@z
@x [18.???]
else begin print_esc(text(p));
print_char(" ");
end;
@y
else begin l:=text(p);
print_esc(l); j:=str_start[l]; l:=str_start[l+1];
if l>j+1 then begin
if (str_pool[j]>=@"100)and(l-j=multistrlenshort(str_pool, l, j)) then
begin cat:=kcat_code(kcatcodekey(fromBUFFshort(str_pool, l, j)));
if (cat<>other_kchar) then print_char(" ");
end
else print_char(" "); end
else print_char(" ");
end;
@z
@x [18.???] pTeX: ensure buffer2[]=0 in primitive
for j:=0 to l-1 do buffer[j]:=so(str_pool[k+j]);
@y
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;
@z
@x [18.265] l.5903 - pTeX: \jfont \tfont
primitive("font",def_font,0);@/
@!@:font_}{\.{\\font} primitive@>
@y
primitive("font",def_font,0);@/
@!@:font_}{\.{\\font} primitive@>
primitive("jfont",def_jfont,0);@/
@!@:jfont_}{\.{\\jfont} primitive@>
primitive("tfont",def_tfont,0);@/
@!@:tfont_}{\.{\\tfont} primitive@>
@z
@x [18.266] l.5979 - pTeX: \jfont, \tfont
def_font: print_esc("font");
@y
def_font: print_esc("font");
def_jfont: print_esc("jfont");
def_tfont: print_esc("tfont");
@z
@x [18.???] pTeX: \ptextracingfonts based on pdfTeX \pdftracingfonts
@<Print the font identifier for |font(p)|@>=
print_esc(font_id_text(font(p)))
@y
@<Print the font identifier for |font(p)|@>=
begin
print_esc(font_id_text(font(p)));
if ptex_tracing_fonts > 0 then begin
print(" (");
print_font_name_and_size(font(p));
if ptex_tracing_fonts > 1 then begin
print_font_dir_and_enc(font(p));
end;
print(")");
end;
end;
@ @<Declare the pTeX-specific |print_font_...| procedures@>=
procedure print_font_name_and_size(f:internal_font_number);
begin
print(font_name[f]);
if font_size[f]<>font_dsize[f] then begin
print("@@");
print_scaled(font_size[f]);
print("pt");
end;
end;
@#
procedure print_font_dir_and_enc(f:internal_font_number);
begin
if font_dir[f]=dir_tate then print("/TATE")
else if font_dir[f]=dir_yoko then print("/YOKO");
if font_enc[f]=2 then print("+Unicode")
else if font_enc[f]=1 then print("+JIS");
end;
@z
@x [20.289] l.6387 - pTeX: cs_token_flag
@d cs_token_flag==@'7777 {amount added to the |eqtb| location in a
token that stands for a control sequence; is a multiple of~256, less~1}
@y
@d cs_token_flag==@"FFFF {amount added to the |eqtb| location in a
token that stands for a control sequence; is a multiple of~256, less~1}
@z
@x [20.293] l.6496 - pTeX: show_token_list
@ @<Display token |p|...@>=
if (p<hi_mem_min) or (p>mem_end) then
begin print_esc("CLOBBERED."); return;
@.CLOBBERED@>
end;
if info(p)>=cs_token_flag then print_cs(info(p)-cs_token_flag)
else begin m:=info(p) div @'400; c:=info(p) mod @'400;
if info(p)<0 then print_esc("BAD.")
@.BAD@>
else @<Display the token $(|m|,|c|)$@>;
end
@y
@ @<Display token |p|...@>=
if (p<hi_mem_min) or (p>mem_end) then
begin print_esc("CLOBBERED."); return;
@.CLOBBERED@>
end;
if info(p)>=cs_token_flag then print_cs(info(p)-cs_token_flag) {|wchar_token|}
else begin
if check_kanji(info(p)) then {|wchar_token|}
begin m:=kcat_code(kcatcodekey(info(p))); c:=info(p);
end
else begin m:=Hi(info(p)); c:=Lo(info(p));
end;
if (m<kanji)and(c>256) then print_esc("BAD.")
@.BAD@>
else @<Display the token $(|m|,|c|)$@>;
end
@z
@x [20.294] l.6512 - pTeX: show_token_list
@<Display the token ...@>=
case m of
left_brace,right_brace,math_shift,tab_mark,sup_mark,sub_mark,spacer,
letter,other_char: print(c);
@y
@<Display the token ...@>=
case m of
kanji,kana,other_kchar: print_kanji(KANJI(c));
left_brace,right_brace,math_shift,tab_mark,sup_mark,sub_mark,spacer,
letter,other_char: print(c);
@z
@x [21.298] l.6632 - pTeX: print KANJI
other_char: chr_cmd("the character ");
@y
other_char: chr_cmd("the character ");
kanji,kana,other_kchar: begin print("kanji character ");
print_kanji(KANJI(chr_code)); end;
@z
@x [22.303] l.6726 - pTeX: state mid_kanji
1) |state=mid_line| is the normal state.\cr
2) |state=skip_blanks| is like |mid_line|, but blanks are ignored.\cr
3) |state=new_line| is the state at the beginning of a line.\cr}}$$
@y
1) |state=mid_line| is the normal state.\cr
2) |state=mid_kanji| is like |mid_line|, and internal KANJI string.\cr
3) |state=skip_blanks| is like |mid_line|, but blanks are ignored.\cr
4) |state=skip_blanks_kanji| is like |mid_kanji|, but blanks are ignored.\cr
5) |state=new_line| is the state at the beginning of a line.\cr}}$$
@z
@x
ignored; after this case is processed, the next value of |state| will
be |skip_blanks|.
@y
ignored; after this case is processed, the next value of |state| will
be |skip_blanks|.
If \.{\\ptexlineendmode} is odd, the |state| become |skip_blanks_kanji|
after a control word which ends with a Japanese character. This is
similar to |skip_blanks|, but the |state| will be |mid_kanji| after
|skip_blanks_kanji+left_brace| and |skip_blanks_kanji+right_brace|,
instead of |mid_line|.
@z
@x [22.303] l.6736 - pTeX: state mid_kanji
@d mid_line=1 {|state| code when scanning a line of characters}
@d skip_blanks=2+max_char_code {|state| code when ignoring blanks}
@d new_line=3+max_char_code+max_char_code {|state| code at start of line}
@y
@d mid_line=1 {|state| code when scanning a line of characters}
@d mid_kanji=2+max_char_code {|state| code when scanning a line of characters}
@d skip_blanks=3+max_char_code+max_char_code {|state| code when ignoring blanks}
@d skip_blanks_kanji=4+max_char_code+max_char_code+max_char_code
{|state| code when ignoring blanks}
@d new_line=5+max_char_code+max_char_code+max_char_code+max_char_code
{|state| code at start of line}
@z
@x [22.311] l.6986 - pTeX: label
@p procedure show_context; {prints where the scanner is}
label done;
var old_setting:0..max_selector; {saved |selector| setting}
@y
@p procedure show_context; {prints where the scanner is}
label done, done1;
var old_setting:0..max_selector; {saved |selector| setting}
@!s: pointer; {temporary pointer}
@z
@x [22.316] l.7110 - pTeX: init kcode_pos
@d begin_pseudoprint==
begin l:=tally; tally:=0; selector:=pseudo;
trick_count:=1000000;
end
@y
@d begin_pseudoprint==
begin l:=tally; tally:=0; selector:=pseudo; kcode_pos:=0;
trick_count:=1000000;
end
@z
@x [22.316] l.7114 - pTeX: kcode_pos
@d set_trick_count==
begin first_count:=tally;
trick_count:=tally+1+error_line-half_error_line;
if trick_count<error_line then trick_count:=error_line;
end
@y
@d set_trick_count==
begin first_count:=tally;
if (first_count>0)and(trick_buf2[(first_count-1)mod error_line]=1) then
incr(first_count);
trick_count:=first_count+1+error_line-half_error_line;
if trick_count<error_line then trick_count:=error_line;
end
@z
@x [22.317] l.7133 - pTeX: adjust kanji code pos
for q:=p to first_count-1 do print_char(trick_buf[q mod error_line]);
print_ln;
for q:=1 to n do print_char(" "); {print |n| spaces to begin line~2}
if m+n<=error_line then p:=first_count+m else p:=first_count+(error_line-n-3);
@y
if trick_buf2[p mod error_line]=2 then
begin p:=p+1; n:=n-1;
end;
for q:=p to first_count-1 do print_char(trick_buf[q mod error_line]);
print_ln;
for q:=1 to n do print_char(" "); {print |n| spaces to begin line~2}
if m+n<=error_line then p:=first_count+m else p:=first_count+(error_line-n-3);
if trick_buf2[(p-1) mod error_line]=1 then p:=p-1;
@z
@x pTeX: buffer
if j>0 then for i:=start to j-1 do
begin if i=loc then set_trick_count;
print(buffer[i]);
end
@y
if j>0 then begin
i:=start;
if (loc<=j-1)and(start<=loc) then begin
for i:=start to loc-1 do
if buffer2[i]>0 then
print_char(@"100*buffer2[i]+buffer[i]) else print(buffer[i]);
set_trick_count; print_unread_buffer_with_ptenc(loc,j);
end
else
for i:=start to j-1 do
if buffer2[i]>0 then
print_char(@"100*buffer2[i]+buffer[i]) else print(buffer[i]);
end
@z
@x [22.319] l.7157 - pTeX: adjust kanji code token
@ @<Pseudoprint the token list@>=
begin_pseudoprint;
if token_type<macro then show_token_list(start,loc,100000)
else show_token_list(link(start),loc,100000) {avoid reference count}
@y
@ @<Pseudoprint the token list@>=
begin_pseudoprint;
if token_type<macro then
begin if (token_type=backed_up)and(loc<>null) then
begin if (link(start)=null)and(check_kanji(info(start))) then {|wchar_token|}
begin cur_input:=input_stack[base_ptr-1];
s:=get_avail; info(s):=Lo(info(loc));
cur_input:=input_stack[base_ptr];
link(start):=s;
show_token_list(start,loc,100000);
free_avail(s);link(start):=null;
goto done1;
end;
end;
show_token_list(start,loc,100000);
end
else show_token_list(link(start),loc,100000); {avoid reference count}
done1:
@z
@x [23.???] pTeX: init the input routines
first:=buf_size; repeat buffer[first]:=0; decr(first); until first=0;
@y
first:=buf_size; repeat buffer[first]:=0; buffer2[first]:=0; decr(first); until first=0;
@z
@x [24.341] l.7479 - pTeX: set last_chr
@!cat:0..max_char_code; {|cat_code(cur_chr)|, usually}
@y
@!cat:escape..max_char_code; {|cat_code(cur_chr)|, usually}
@!l:0..buf_size; {temporary index into |buffer|}
@z
@x [24.343] l.7500 - pTeX: input external file
@ @<Input from external file, |goto restart| if no input found@>=
@^inner loop@>
begin switch: if loc<=limit then {current line not yet finished}
begin cur_chr:=buffer[loc]; incr(loc);
reswitch: cur_cmd:=cat_code(cur_chr);
@y
@ @<Input from external file, |goto restart| if no input found@>=
@^inner loop@>
begin switch: if loc<=limit then {current line not yet finished}
begin cur_chr:=buffer[loc]; incr(loc);
if multistrlen(ustringcast(buffer), limit+1, loc-1)=2 then
begin cur_chr:=fromBUFF(ustringcast(buffer), limit+1, loc-1);
cur_cmd:=kcat_code(kcatcodekey(cur_chr));
for l:=loc-1 to loc-2+multistrlen(ustringcast(buffer), limit+1, loc-1) do
buffer2[l]:=1;
incr(loc);
end
else reswitch: cur_cmd:=cat_code(cur_chr);
@z
@x [24.344] l.7535 - pTeX: ASCII-KANJI space handling
@d any_state_plus(#) == mid_line+#,skip_blanks+#,new_line+#
@y
@d any_state_plus(#) ==
mid_line+#,mid_kanji+#,skip_blanks+#,skip_blanks_kanji+#,new_line+#
@z
@x
@ @<Cases where character is ignored@>=
any_state_plus(ignore),skip_blanks+spacer,new_line+spacer
@y
@ @<Cases where character is ignored@>=
any_state_plus(ignore),skip_blanks+spacer,skip_blanks_kanji+spacer,new_line+spacer
@z
@x [24.347] l.7569 - pTeX: scaner
@ @d add_delims_to(#)==#+math_shift,#+tab_mark,#+mac_param,
#+sub_mark,#+letter,#+other_char
@y
@ @d add_delims_to(#)==#+math_shift,#+tab_mark,#+mac_param,
#+sub_mark,#+letter,#+other_char
@d all_jcode(#)==#+kanji,#+kana,#+other_kchar
@z
@x [24.347] l.7573 - pTeX: scaner
mid_line+spacer:@<Enter |skip_blanks| state, emit a space@>;
mid_line+car_ret:@<Finish line, emit a space@>;
skip_blanks+car_ret,any_state_plus(comment):
@<Finish line, |goto switch|@>;
new_line+car_ret:@<Finish line, emit a \.{\\par}@>;
mid_line+left_brace: incr(align_state);
skip_blanks+left_brace,new_line+left_brace: begin
state:=mid_line; incr(align_state);
end;
mid_line+right_brace: decr(align_state);
skip_blanks+right_brace,new_line+right_brace: begin
state:=mid_line; decr(align_state);
end;
add_delims_to(skip_blanks),add_delims_to(new_line): state:=mid_line;
@y
mid_kanji+spacer,mid_line+spacer:@<Enter |skip_blanks| state, emit a space@>;
mid_line+car_ret:@<Finish line, emit a space@>;
mid_kanji+car_ret: if skip_mode then @<Finish line, |goto switch|@>
else @<Finish line, emit a space@>;
skip_blanks+car_ret,skip_blanks_kanji+car_ret,any_state_plus(comment):
@<Finish line, |goto switch|@>;
new_line+car_ret:@<Finish line, emit a \.{\\par}@>;
mid_line+left_brace: incr(align_state);
mid_kanji+left_brace: begin incr(align_state);
if ((ptex_lineend div 4) mod 2)=1 then state:=mid_line;
end;
skip_blanks+left_brace,new_line+left_brace: begin
state:=mid_line; incr(align_state);
end;
skip_blanks_kanji+left_brace: begin
state:=mid_kanji; incr(align_state);
end;
mid_line+right_brace: decr(align_state);
mid_kanji+right_brace: begin decr(align_state);
if ((ptex_lineend div 4) mod 2)=1 then state:=mid_line;
end;
skip_blanks+right_brace,new_line+right_brace: begin
state:=mid_line; decr(align_state);
end;
skip_blanks_kanji+right_brace: begin
state:=mid_kanji; decr(align_state);
end;
add_delims_to(skip_blanks),add_delims_to(skip_blanks_kanji),
add_delims_to(new_line),add_delims_to(mid_kanji):
state:=mid_line;
all_jcode(skip_blanks),all_jcode(skip_blanks_kanji),all_jcode(new_line),
all_jcode(mid_line):
state:=mid_kanji;
@ @<Global...@>=
skip_mode:boolean;
@ @<Set init...@>=
skip_mode:=true;
@z
@x [24.354] l.7659 - pTeX: scan control sequence
@<Scan a control...@>=
begin if loc>limit then cur_cs:=null_cs {|state| is irrelevant in this case}
else begin start_cs: k:=loc; cur_chr:=buffer[k]; cat:=cat_code(cur_chr);
incr(k);
if cat=letter then state:=skip_blanks
else if cat=spacer then state:=skip_blanks
else state:=mid_line;
if (cat=letter)and(k<=limit) then
@<Scan ahead in the buffer until finding a nonletter;
if an expanded code is encountered, reduce it
and |goto start_cs|; otherwise if a multiletter control
sequence is found, adjust |cur_cs| and |loc|, and
|goto found|@>
else @<If an expanded code is present, reduce it and |goto start_cs|@>;
cur_cs:=single_base+buffer[loc]; incr(loc);
end;
found: cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
if cur_cmd>=outer_call then check_outer_validity;
end
@y
@<Scan a control...@>=
begin if loc>limit then cur_cs:=null_cs {|state| is irrelevant in this case}
else begin k:=loc; cur_chr:=buffer[k]; incr(k);
if multistrlen(ustringcast(buffer), limit+1, k-1)=2 then
begin cat:=kcat_code(kcatcodekey(fromBUFF(ustringcast(buffer), limit+1, k-1)));
for l:=k-1 to k-2+multistrlen(ustringcast(buffer), limit+1, k-1) do
buffer2[l]:=1;
incr(k);
end
else cat:=cat_code(cur_chr);
start_cs:
if cat=letter then state:=skip_blanks
else if (cat=kanji)or(cat=kana) then
begin if (ptex_lineend mod 2)=0 then state:=skip_blanks_kanji
else state:=skip_blanks end
else if cat=spacer then state:=skip_blanks
else if cat=other_kchar then
begin if ((ptex_lineend div 2) mod 2)=0 then state:=mid_kanji
else state:=mid_line end
else state:=mid_line;
if cat=other_kchar then
begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
end
else if ((cat=letter)or(cat=kanji)or(cat=kana))and(k<=limit) then
@<Scan ahead in the buffer until finding a nonletter;
if an expanded code is encountered, reduce it
and |goto start_cs|; otherwise if a multiletter control
sequence is found, adjust |cur_cs| and |loc|, and
|goto found|@>
else @<If an expanded code is present, reduce it and |goto start_cs|@>;
{single-letter control sequence}
if (cat=kanji)or(cat=kana) then
begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
end
else begin cur_cs:=single_base+buffer[loc]; incr(loc); end;
end;
found: cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
if cur_cmd>=outer_call then check_outer_validity;
end
@z
@x
@<If an expanded...@>=
begin if buffer[k]=cur_chr then @+if cat=sup_mark then @+if k<limit then
begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
begin d:=2;
if is_hex(c) then @+if k+2<=limit then
begin cc:=buffer[k+2]; @+if is_hex(cc) then incr(d);
end;
if d>2 then
begin hex_to_cur_chr; buffer[k-1]:=cur_chr;
end
else if c<@'100 then buffer[k-1]:=c+@'100
else buffer[k-1]:=c-@'100;
limit:=limit-d; first:=first-d;
while k<=limit do
begin buffer[k]:=buffer[k+d]; incr(k);
end;
goto start_cs;
end;
end;
end
@y
@<If an expanded...@>=
begin if buffer[k]=cur_chr then @+if cat=sup_mark then @+if k<limit then
begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
begin d:=2;
if is_hex(c) then @+if k+2<=limit then
begin cc:=buffer[k+2]; @+if is_hex(cc) then incr(d);
end;
if d>2 then
begin hex_to_cur_chr; buffer[k-1]:=cur_chr;
end
else if c<@'100 then buffer[k-1]:=c+@'100
else buffer[k-1]:=c-@'100;
buffer2[k-1]:=0; limit:=limit-d; first:=first-d;
l:=k; cur_chr:=buffer[k-1]; cat:=cat_code(cur_chr);
while l<=limit do
begin buffer[l]:=buffer[l+d]; buffer2[l]:=buffer2[l+d]; incr(l);
end;
goto start_cs;
end;
end;
end
@z
@x [24.356] l.7727 - pTeX: scan control sequence (cont)
@ @<Scan ahead in the buffer...@>=
begin repeat cur_chr:=buffer[k]; cat:=cat_code(cur_chr); incr(k);
until (cat<>letter)or(k>limit);
@<If an expanded...@>;
if cat<>letter then decr(k);
{now |k| points to first nonletter}
if k>loc+1 then {multiletter control sequence has been scanned}
begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
end;
end
@y
@ @<Scan ahead in the buffer...@>=
begin repeat cur_chr:=buffer[k]; incr(k);
if multistrlen(ustringcast(buffer), limit+1, k-1)=2 then
begin cat:=kcat_code(kcatcodekey(fromBUFF(ustringcast(buffer), limit+1, k-1)));
for l:=k-1 to k-2+multistrlen(ustringcast(buffer), limit+1, k-1) do
buffer2[l]:=1;
incr(k);
if (cat=kanji)or(cat=kana) then
begin if (ptex_lineend mod 2)=0 then state:=skip_blanks_kanji
else state:=skip_blanks end;
end
else cat:=cat_code(cur_chr);
while (buffer[k]=cur_chr)and(cat=sup_mark)and(k<limit) do
begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
begin d:=2;
if is_hex(c) then @+if k+2<=limit then
begin cc:=buffer[k+2]; @+if is_hex(cc) then incr(d);
end;
if d>2 then
begin hex_to_cur_chr;
end
else if c<@'100 then cur_chr:=c+@'100
else cur_chr:=c-@'100;
cat:=cat_code(cur_chr);
if (cat=letter)or(cat=sup_mark) then
begin buffer[k-1]:=cur_chr; buffer2[k-1]:=0;
limit:=limit-d; first:=first-d;
l:=k;
while l<=limit do
begin buffer[l]:=buffer[l+d]; buffer2[l]:=buffer2[l+d]; incr(l);
end;
end;
end;
end;
if cat=letter then state:=skip_blanks;
until not((cat=letter)or(cat=kanji)or(cat=kana))or(k>limit);
{@@<If an expanded...@@>;}
if not((cat=letter)or(cat=kanji)or(cat=kana)) then decr(k);
if cat=other_kchar then decr(k); {now |k| points to first nonletter}
if k>loc+1 then {multiletter control sequence has been scanned}
begin cur_cs:=id_lookup(loc,k-loc); loc:=k; goto found;
end;
end
@z
@x [24.357] l.7771 - pTeX: input from token list
@<Input from token list, |goto restart| if end of list or
if a parameter needs to be expanded@>=
if loc<>null then {list not exhausted}
@^inner loop@>
begin t:=info(loc); loc:=link(loc); {move to next}
if t>=cs_token_flag then {a control sequence token}
begin cur_cs:=t-cs_token_flag;
cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
if cur_cmd>=outer_call then
if cur_cmd=dont_expand then
@<Get the next token, suppressing expansion@>
else check_outer_validity;
end
else begin cur_cmd:=t div @'400; cur_chr:=t mod @'400;
case cur_cmd of
left_brace: incr(align_state);
right_brace: decr(align_state);
out_param: @<Insert macro parameter and |goto restart|@>;
othercases do_nothing
endcases;
end;
end
else begin {we are done with this token list}
end_token_list; goto restart; {resume previous level}
end
@y
@<Input from token list, |goto restart| if end of list or
if a parameter needs to be expanded@>=
if loc<>null then {list not exhausted}
@^inner loop@>
begin t:=info(loc); loc:=link(loc); {move to next}
if t>=cs_token_flag then {a control sequence token}
begin cur_cs:=t-cs_token_flag;
cur_cmd:=eq_type(cur_cs); cur_chr:=equiv(cur_cs);
if cur_cmd>=outer_call then
if cur_cmd=dont_expand then
@<Get the next token, suppressing expansion@>
else check_outer_validity;
end
else if check_kanji(t) then {|wchar_token|}
begin cur_chr:=t; cur_cmd:=kcat_code(kcatcodekey(t));
end
else
begin cur_cmd:=Hi(t); cur_chr:=Lo(t);
case cur_cmd of
left_brace: incr(align_state);
right_brace: decr(align_state);
out_param: @<Insert macro parameter and |goto restart|@>;
othercases do_nothing
endcases;
end;
end
else begin {we are done with this token list}
end_token_list; goto restart; {resume previous level}
end
@z
@x [24] pTeX: firm_up_the_line
if start<limit then for k:=start to limit-1 do print(buffer[k]);
first:=limit; prompt_input("=>"); {wait for user response}
@.=>@>
if last>first then
begin for k:=first to last-1 do {move line down in buffer}
buffer[k+start-first]:=buffer[k];
@y
if start<limit then for k:=start to limit-1 do
if buffer2[k]>0 then print_char(buffer[k]) else print(buffer[k]);
first:=limit; prompt_input("=>"); {wait for user response}
@.=>@>
if last>first then
begin for k:=first to last-1 do {move line down in buffer}
begin buffer[k+start-first]:=buffer[k]; buffer2[k+start-first]:=buffer2[k]; end;
@z
@x [24.365] l.7935 - pTeX: get_token
@p procedure get_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|}
begin no_new_control_sequence:=false; get_next; no_new_control_sequence:=true;
@^inner loop@>
if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
else cur_tok:=cs_token_flag+cur_cs;
end;
@y
@p procedure get_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|}
begin no_new_control_sequence:=false; get_next; no_new_control_sequence:=true;
@^inner loop@>
if cur_cs=0 then
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {|wchar_token|}
cur_tok:=cur_chr
else cur_tok:=(cur_cmd*@'400)+cur_chr
else cur_tok:=cs_token_flag+cur_cs;
end;
@z
@x [25.374] l.8073 - pTeX: get_chr
@ @<Look up the characters of list |r| in the hash table...@>=
j:=first; p:=link(r);
while p<>null do
begin if j>=max_buf_stack then
begin max_buf_stack:=j+1;
if max_buf_stack=buf_size then
overflow("buffer size",buf_size);
@:TeX capacity exceeded buffer size}{\quad buffer size@>
end;
buffer[j]:=info(p) mod @'400; incr(j); p:=link(p);
end;
if j>first+1 then
begin no_new_control_sequence:=false; cur_cs:=id_lookup(first,j-first);
no_new_control_sequence:=true;
end
else if j=first then cur_cs:=null_cs {the list is empty}
else cur_cs:=single_base+buffer[first] {the list has length one}
@y
@ @<Look up the characters of list |r| in the hash table...@>=
j:=first; p:=link(r);
while p<>null do
begin if j>=max_buf_stack then
begin max_buf_stack:=j+1;
if max_buf_stack=buf_size then
overflow("buffer size",buf_size);
@:TeX capacity exceeded buffer size}{\quad buffer size@>
end;
if check_kanji(info(p)) then {|wchar_token|}
begin buffer[j]:=Hi(info(p)); buffer2[j]:=1; incr(j); buffer2[j]:=1;
end
else buffer2[j]:=0;
buffer[j]:=Lo(info(p)); incr(j); p:=link(p);
end;
if j>first+1 then
begin no_new_control_sequence:=false; cur_cs:=id_lookup(first,j-first);
no_new_control_sequence:=true;
end
else if j=first then cur_cs:=null_cs {the list is empty}
else cur_cs:=single_base+buffer[first] {the list has length one}
@z
@x [25.380] l.8221 - pTeX: get_x_token
@p procedure get_x_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|,
and expands macros}
label restart,done;
begin restart: get_next;
@^inner loop@>
if cur_cmd<=max_command then goto done;
if cur_cmd>=call then
if cur_cmd<end_template then macro_call
else begin cur_cs:=frozen_endv; cur_cmd:=endv;
goto done; {|cur_chr=null_list|}
end
else expand;
goto restart;
done: if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
else cur_tok:=cs_token_flag+cur_cs;
end;
@y
@p procedure get_x_token; {sets |cur_cmd|, |cur_chr|, |cur_tok|,
and expands macros}
label restart,done;
begin restart: get_next;
@^inner loop@>
if cur_cmd<=max_command then goto done;
if cur_cmd>=call then
if cur_cmd<end_template then macro_call
else begin cur_cs:=frozen_endv; cur_cmd:=endv;
goto done; {|cur_chr=null_list|}
end
else expand;
goto restart;
done: if cur_cs=0 then
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
cur_tok:=cur_chr
else cur_tok:=(cur_cmd*@'400)+cur_chr
else cur_tok:=cs_token_flag+cur_cs;
end;
@z
@x [25.381] l.8151 - pTeX: x_token
@p procedure x_token; {|get_x_token| without the initial |get_next|}
begin while cur_cmd>max_command do
begin expand;
get_next;
end;
if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
else cur_tok:=cs_token_flag+cur_cs;
@y
@p procedure x_token; {|get_x_token| without the initial |get_next|}
begin while cur_cmd>max_command do
begin expand;
get_next;
end;
if cur_cs=0 then
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
cur_tok:=cur_chr
else cur_tok:=(cur_cmd*@'400)+cur_chr
else cur_tok:=cs_token_flag+cur_cs;
@z
@x [26.413] l.8341 - pTeX: scan_something_internal
@p procedure scan_something_internal(@!level:small_number;@!negative:boolean);
@y
@p @t\4@>@<Declare procedures needed in |scan_something_internal|@>@t@>@/
procedure scan_something_internal(@!level:small_number;@!negative:boolean);
@z
@x [26.413] l.8343 - pTeX: scan_something_internal
var m:halfword; {|chr_code| part of the operand token}
@y
var m:halfword; {|chr_code| part of the operand token}
@!tx:pointer; {effective tail node}
@!qx:halfword; {general purpose index}
@z
@x [26.413] l.8345 - pTeX: scan_something_internal
begin m:=cur_chr;
case cur_cmd of
def_code: @<Fetch a character code from some table@>;
toks_register,assign_toks,def_family,set_font,def_font: @<Fetch a token list or
font identifier, provided that |level=tok_val|@>;
@y
@!q,@!r:pointer;
begin m:=cur_chr;
case cur_cmd of
assign_kinsoku: @<Fetch breaking penalty from some table@>;
assign_inhibit_xsp_code: @<Fetch inhibit type from some table@>;
set_kansuji_char: @<Fetch kansuji char code from some table@>;
def_code: @<Fetch a character code from some table@>;
toks_register,assign_toks,def_family,set_font,def_font,def_jfont,def_tfont:
@<Fetch a token list or font identifier, provided that |level=tok_val|@>;
@z
@x [26.414] l.8373 - pTeX:
begin scan_char_num;
if m=math_code_base then scanned_result(ho(math_code(cur_val)))(int_val)
else if m<math_code_base then scanned_result(equiv(m+cur_val))(int_val)
else scanned_result(eqtb[m+cur_val].int)(int_val);
@y
begin
if m=math_code_base then
begin scan_ascii_num;
scanned_result(ho(math_code(cur_val)))(int_val); end
else if m=kcat_code_base then
begin scan_char_num;
scanned_result(equiv(m+kcatcodekey(cur_val)))(int_val); end
else if m<math_code_base then { \.{\\lccode}, \.{\\uccode}, \.{\\sfcode}, \.{\\catcode} }
begin scan_ascii_num;
scanned_result(equiv(m+cur_val))(int_val) end
else { \.{\\delcode} }
begin scan_ascii_num;
scanned_result(eqtb[m+cur_val].int)(int_val) end;
@z
@x pTeX: \ptexversion
@d badness_code=glue_val+2 {code for \.{\\badness}}
@y
@d badness_code=glue_val+2 {code for \.{\\badness}}
@d ptex_version_code=badness_code+1 {code for \.{\\ptexversion}}
@d ptex_minor_version_code=ptex_version_code+1 {code for \.{\\ptexminorversion}}
@z
@x pTeX: \ptexversion
primitive("badness",last_item,badness_code);
@!@:badness_}{\.{\\badness} primitive@>
@y
primitive("badness",last_item,badness_code);
@!@:badness_}{\.{\\badness} primitive@>
primitive("ptexversion",last_item,ptex_version_code);
@!@:ptexversion_}{\.{\\ptexversion} primitive@>
primitive("ptexminorversion",last_item,ptex_minor_version_code);
@!@:ptexminorversion_}{\.{\\ptexminorversion} primitive@>
@z
@x pTeX: \ptexversion
input_line_no_code: print_esc("inputlineno");
@y
input_line_no_code: print_esc("inputlineno");
ptex_version_code: print_esc("ptexversion");
ptex_minor_version_code: print_esc("ptexminorversion");
@z
@x [26.420] l.8474 - pTeX: Fetch a box dimension: dir_node
begin scan_eight_bit_int;
if box(cur_val)=null then cur_val:=0 @+else cur_val:=mem[box(cur_val)+m].sc;
@y
begin scan_eight_bit_int; q:=box(cur_val);
if q=null then cur_val:=0
else begin qx:=q;
while (q<>null)and(abs(box_dir(q))<>abs(direction)) do q:=link(q);
if q=null then
begin r:=link(qx); link(qx):=null;
q:=new_dir_node(qx,abs(direction)); link(qx):=r;
cur_val:=mem[q+m].sc;
delete_glue_ref(space_ptr(q)); delete_glue_ref(xspace_ptr(q));
free_node(q,box_node_size);
end
else cur_val:=mem[q+m].sc;
end;
@z
@x [26.424] l.8508 - pTeX: disp_node
legal in similar contexts.
@y
legal in similar contexts.
The macro |find_effective_tail_pTeX| sets |tx| to the last non-|disp_node|
of the current list.
@z
@x [26.424] l.8510 - pTeX: disp_node
@<Fetch an item in the current node...@>=
@y
@d find_effective_tail_pTeX==
tx:=tail;
if not is_char_node(tx) then
if type(tx)=disp_node then
begin tx:=prev_node;
if not is_char_node(tx) then
if type(tx)=disp_node then {|disp_node| from a discretionary}
begin tx:=head; q:=link(head);
while q<>prev_node do
begin if is_char_node(q) then tx:=q
else if type(q)<>disp_node then tx:=q;
end;
q:=link(q);
end;
end
@#
@d find_effective_tail==find_effective_tail_pTeX
@<Fetch an item in the current node...@>=
@z
@x pTeX: \ptexversion
begin if cur_chr=input_line_no_code then cur_val:=line
else cur_val:=last_badness; {|cur_chr=badness_code|}
@y
begin case m of
input_line_no_code: cur_val:=line;
badness_code: cur_val:=last_badness;
ptex_version_code: cur_val:=pTeX_version;
ptex_minor_version_code: cur_val:=pTeX_minor_version;
end; {there and no other cases}
@z
@x [26.424] l.8516 - pTeX: Fetch an item ...: disp_node
else begin if cur_chr=glue_val then cur_val:=zero_glue@+else cur_val:=0;
@y
else begin if cur_chr=glue_val then cur_val:=zero_glue@+else cur_val:=0;
find_effective_tail;
@z
@x [26.424] l.8518 - pTeX: Fetch an item ...: disp_node
if not is_char_node(tail)and(mode<>0) then
case cur_chr of
int_val: if type(tail)=penalty_node then cur_val:=penalty(tail);
dimen_val: if type(tail)=kern_node then cur_val:=width(tail);
glue_val: if type(tail)=glue_node then
begin cur_val:=glue_ptr(tail);
if subtype(tail)=mu_glue then cur_val_level:=mu_val;
end;
@y
if not is_char_node(tx)and(tx<>head)and(mode<>0) then
case cur_chr of
int_val: if type(tx)=penalty_node then cur_val:=penalty(tx);
dimen_val: if type(tx)=kern_node then cur_val:=width(tx);
glue_val: if type(tx)=glue_node then
begin cur_val:=glue_ptr(tx);
if subtype(tx)=mu_glue then cur_val_level:=mu_val;
end;
@z
@x [26.424] l.8527 - pTeX: Fetch an item ...: disp_node
else if (mode=vmode)and(tail=head) then
@y
else if (mode=vmode)and(tx=head) then
@z
@x [26.435] l.8940 - pTeX: scan_char_num
procedure scan_char_num;
begin scan_int;
if (cur_val<0)or(cur_val>255) then
begin print_err("Bad character code");
@.Bad character code@>
help2("A character number must be between 0 and 255.")@/
("I changed this one to zero."); int_error(cur_val); cur_val:=0;
end;
end;
@y
procedure scan_ascii_num;
begin scan_int;
if (cur_val<0)or(cur_val>255) then
begin print_err("Bad character code");
@.Bad character code@>
help2("A character number must be between 0 and 255.")@/
("I changed this one to zero."); int_error(cur_val); cur_val:=0;
end;
end;
procedure scan_char_num;
begin scan_int;
if not is_char_ascii(cur_val) and not is_char_kanji(cur_val) then
begin print_err("Bad character code");
@.Bad character code@>
help2("A character number must be between 0 and 255, or KANJI code.")@/
("I changed this one to zero."); int_error(cur_val); cur_val:=0;
end;
end;
@z
@x [26.442] l.9045 - pTeX: KANJI character scanning
@<Scan an alphabetic character code into |cur_val|@>=
begin get_token; {suppress macro expansion}
if cur_tok<cs_token_flag then
begin cur_val:=cur_chr;
if cur_cmd<=right_brace then
if cur_cmd=right_brace then incr(align_state)
else decr(align_state);
end
else if cur_tok<cs_token_flag+single_base then
cur_val:=cur_tok-cs_token_flag-active_base
else cur_val:=cur_tok-cs_token_flag-single_base;
if cur_val>255 then
begin print_err("Improper alphabetic constant");
@.Improper alphabetic constant@>
help2("A one-character control sequence belongs after a ` mark.")@/
("So I'm essentially inserting \0 here.");
cur_val:="0"; back_error;
end
else @<Scan an optional space@>;
end
@y
@<Scan an alphabetic character code into |cur_val|@>=
begin get_token; {suppress macro expansion}
if cur_tok<cs_token_flag then
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {|wchar_token|}
begin skip_mode:=false; cur_val:=tonum(cur_chr);
end
else begin cur_val:=cur_chr;
if cur_cmd<=right_brace then
if cur_cmd=right_brace then incr(align_state)
else decr(align_state);
end
else if cur_tok<cs_token_flag+single_base then
cur_val:=cur_tok-cs_token_flag-active_base
else
{ the token is a CS;
* if |kanji|<=|cur_cmd|<=|max_char_code|, then CS is let-equal to |wchar_token|
* if |max_char_code|<|cur_cmd|, then CS is a multibyte CS
=> both case should raise "Improper ..." error
* otherwise it should be a single-character CS with |cur_val|<=255 }
begin if not (cur_cmd<kanji) then cur_cmd:=invalid_char;
cur_val:=cur_tok-cs_token_flag-single_base;
end;
if (cur_val>255)and(cur_cmd<kanji) then
begin print_err("Improper alphabetic or KANJI constant");
@.Improper alphabetic constant@>
help2("A one-character control sequence belongs after a ` mark.")@/
("So I'm essentially inserting \0 here.");
cur_val:="0"; back_error;
end
else @<Scan an optional space@>;
skip_mode:=true;
end
@z
@x [26.455] l.9288 - pTeX: zw, zh: zenkaku width & height
if scan_keyword("em") then v:=(@<The em width for |cur_font|@>)
@.em@>
else if scan_keyword("ex") then v:=(@<The x-height for |cur_font|@>)
@.ex@>
else goto not_found;
@y
if scan_keyword("em") then v:=(@<The em width for |cur_font|@>)
@.em@>
else if scan_keyword("ex") then v:=(@<The x-height for |cur_font|@>)
@.ex@>
else if scan_keyword("zw") then @<The KANJI width for |cur_jfont|@>
@.zw@>
else if scan_keyword("zh") then @<The KANJI height for |cur_jfont|@>
@.zh@>
else goto not_found;
@z
@x [26.458] l.9345 - pTeX: dimension unit: Q, H (1/4 mm)
else if scan_keyword("sp") then goto done
@.sp@>
@y
else if scan_keyword("H") then set_conversion(7227)(10160)
@.H@>
else if scan_keyword("Q") then set_conversion(7227)(10160)
@.Q@>
else if scan_keyword("sp") then goto done
@.sp@>
@z
@x [26.459] pTeX: help message
help6("Dimensions can be in units of em, ex, in, pt, pc,")@/
("cm, mm, dd, cc, bp, or sp; but yours is a new one!")@/
@y
help6("Dimensions can be in units of em, ex, zw, zh, in, pt, pc,")@/
("cm, mm, dd, cc, bp, H, Q, or sp; but yours is a new one!")@/
@z
@x [27.464] l.9475 - pTeX: str_toks
if t=" " then t:=space_token
else t:=other_token+t;
@y
if t>=@"100 then
begin t:=fromBUFFshort(str_pool, pool_ptr, k); incr(k);
end
else if t=" " then t:=space_token
else t:=other_token+t;
@z
@x [27.468] l.9531 - pTeX: convert KANJI code
@d number_code=0 {command code for \.{\\number}}
@d roman_numeral_code=1 {command code for \.{\\romannumeral}}
@d string_code=2 {command code for \.{\\string}}
@d meaning_code=3 {command code for \.{\\meaning}}
@d font_name_code=4 {command code for \.{\\fontname}}
@d job_name_code=5 {command code for \.{\\jobname}}
@y
@d number_code=0 {command code for \.{\\number}}
@d roman_numeral_code=1 {command code for \.{\\romannumeral}}
@d kansuji_code=2 {command code for \.{\\kansuji}}
@d string_code=3 {command code for \.{\\string}}
@d meaning_code=4 {command code for \.{\\meaning}}
@d font_name_code=5 {command code for \.{\\fontname}}
@d euc_code=6 {command code for \.{\\euc}}
@d sjis_code=7 {command code for \.{\\sjis}}
@d jis_code=8 {command code for \.{\\jis}}
@d kuten_code=9 {command code for \.{\\kuten}}
@d ucs_code=10 {command code for \.{\\ucs}}
@d toucs_code=11 {command code for \.{\\toucs}}
@d tojis_code=12 {command code for \.{\\tojis}}
@d ptex_font_name_code=13 {command code for \.{\\ptexfontname}}
@d ptex_revision_code=14 {command code for \.{\\ptexrevision}}
@d ptex_convert_codes=15 {end of \pTeX's command codes}
@d job_name_code=ptex_convert_codes {command code for \.{\\jobname}}
@z
@x [27.468] l.9547 - pTeX:
primitive("fontname",convert,font_name_code);@/
@!@:font_name_}{\.{\\fontname} primitive@>
@y
primitive("fontname",convert,font_name_code);@/
@!@:font_name_}{\.{\\fontname} primitive@>
primitive("kansuji",convert,kansuji_code);
@!@:kansuji_}{\.{\\kansuji} primitive@>
primitive("euc",convert,euc_code);
@!@:euc_}{\.{\\euc} primitive@>
primitive("sjis",convert,sjis_code);
@!@:sjis_}{\.{\\sjis} primitive@>
primitive("jis",convert,jis_code);
@!@:jis_}{\.{\\jis} primitive@>
primitive("kuten",convert,kuten_code);
@!@:kuten_}{\.{\\kuten} primitive@>
primitive("ucs",convert,ucs_code);
@!@:ucs_}{\.{\\ucs} primitive@>
primitive("toucs",convert,toucs_code);
@!@:toucs_}{\.{\\toucs} primitive@>
primitive("tojis",convert,tojis_code);
@!@:tojis_}{\.{\\tojis} primitive@>
primitive("ptexfontname",convert,ptex_font_name_code);
@!@:ptexfontname_}{\.{\\ptexfontname} primitive@>
primitive("ptexrevision",convert,ptex_revision_code);
@!@:ptexrevision_}{\.{\\ptexrevision} primitive@>
@z
@x [27.469] l.9558 - pTeX:
font_name_code: print_esc("fontname");
@y
font_name_code: print_esc("fontname");
kansuji_code: print_esc("kansuji");
euc_code:print_esc("euc");
sjis_code:print_esc("sjis");
jis_code:print_esc("jis");
kuten_code:print_esc("kuten");
ucs_code:print_esc("ucs");
toucs_code:print_esc("toucs");
tojis_code:print_esc("tojis");
ptex_font_name_code: print_esc("ptexfontname");
ptex_revision_code:print_esc("ptexrevision");
@z
@x [27.470] l.9566 - pTeX: convert KANJI code continue
@p procedure conv_toks;
var old_setting:0..max_selector; {holds |selector| setting}
@y
@p procedure conv_toks;
var old_setting:0..max_selector; {holds |selector| setting}
@!cx:KANJI_code; {temporary register for KANJI}
@z
@x [27.471] l.9577 - pTeX: convert KANJI code continue
@ @<Scan the argument for command |c|@>=
case c of
number_code,roman_numeral_code: scan_int;
string_code, meaning_code: begin save_scanner_status:=scanner_status;
scanner_status:=normal; get_token; scanner_status:=save_scanner_status;
end;
@y
@ @<Scan the argument for command |c|@>=
KANJI(cx):=0;
case c of
number_code,roman_numeral_code,
kansuji_code,euc_code,sjis_code,jis_code,kuten_code,
ucs_code,toucs_code,tojis_code: scan_int;
ptex_font_name_code: scan_font_ident;
ptex_revision_code: do_nothing;
string_code, meaning_code: begin save_scanner_status:=scanner_status;
scanner_status:=normal; get_token;
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {|wchar_token|}
KANJI(cx):=cur_tok;
scanner_status:=save_scanner_status;
end;
@z
@x [27.471] l.9587 - pTeX: convert KANJI code continue
@ @<Print the result of command |c|@>=
case c of
number_code: print_int(cur_val);
roman_numeral_code: print_roman_int(cur_val);
string_code:if cur_cs<>0 then sprint_cs(cur_cs)
else print_char(cur_chr);
@y
@ @<Print the result of command |c|@>=
case c of
number_code: print_int(cur_val);
roman_numeral_code: print_roman_int(cur_val);
kansuji_code: print_kansuji(cur_val);
jis_code: begin cur_val:=fromJIS(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
euc_code: begin cur_val:=fromEUC(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
sjis_code: begin cur_val:=fromSJIS(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
kuten_code: begin cur_val:=fromKUTEN(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
ucs_code: begin cur_val:=fromUCS(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
toucs_code: begin cur_val:=toUCS(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
tojis_code: begin cur_val:=toJIS(cur_val);
if cur_val=0 then print_int(-1) else print_int(cur_val); end;
ptex_font_name_code: begin
print_font_name_and_size(cur_val);
print_font_dir_and_enc(cur_val);
end;
ptex_revision_code: print(pTeX_revision);
string_code:if cur_cs<>0 then sprint_cs(cur_cs)
else if KANJI(cx)=0 then print_char(cur_chr)
else print_kanji(cx);
@z
@x [28.487] l.9852 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
@d if_case_code=16 { `\.{\\ifcase}' }
@y
@d if_case_code=16 { `\.{\\ifcase}' }
@#
@d if_tdir_code=if_case_code+1 { `\.{\\iftdir}' }
@d if_ydir_code=if_tdir_code+1 { `\.{\\ifydir}' }
@d if_ddir_code=if_ydir_code+1 { `\.{\\ifddir}' }
@d if_mdir_code=if_ddir_code+1 { `\.{\\ifmdir}' }
@d if_tbox_code=if_mdir_code+1 { `\.{\\iftbox}' }
@d if_ybox_code=if_tbox_code+1 { `\.{\\ifybox}' }
@d if_dbox_code=if_ybox_code+1 { `\.{\\ifdbox}' }
@d if_mbox_code=if_dbox_code+1 { `\.{\\ifmbox}' }
@#
@d if_jfont_code=if_mbox_code+1 { `\.{\\ifjfont}' }
@d if_tfont_code=if_jfont_code+1 { `\.{\\iftfont}' }
@z
@x [28.487] l.9887 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
primitive("ifcase",if_test,if_case_code);
@!@:if_case_}{\.{\\ifcase} primitive@>
@y
primitive("ifcase",if_test,if_case_code);
@!@:if_case_}{\.{\\ifcase} primitive@>
primitive("iftdir",if_test,if_tdir_code);
@!@:if_tdir_}{\.{\\iftdir} primitive@>
primitive("ifydir",if_test,if_ydir_code);
@!@:if_ydir_}{\.{\\ifydir} primitive@>
primitive("ifddir",if_test,if_ddir_code);
@!@:if_ddir_}{\.{\\ifddir} primitive@>
primitive("ifmdir",if_test,if_mdir_code);
@!@:if_mdir_}{\.{\\ifmdir} primitive@>
primitive("iftbox",if_test,if_tbox_code);
@!@:if_tbox_}{\.{\\iftbox} primitive@>
primitive("ifybox",if_test,if_ybox_code);
@!@:if_ybox_}{\.{\\ifybox} primitive@>
primitive("ifdbox",if_test,if_dbox_code);
@!@:if_dbox_}{\.{\\ifdbox} primitive@>
primitive("ifmbox",if_test,if_mbox_code);
@!@:if_mbox_}{\.{\\ifmbox} primitive@>
primitive("ifjfont",if_test,if_jfont_code);
@!@:if_jfont_}{\.{\\ifjfont} primitive@>
primitive("iftfont",if_test,if_tfont_code);
@!@:if_tfont_}{\.{\\iftfont} primitive@>
@z
@x [28.488] l.9907 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
if_case_code:print_esc("ifcase");
@y
if_case_code:print_esc("ifcase");
if_tdir_code:print_esc("iftdir");
if_ydir_code:print_esc("ifydir");
if_ddir_code:print_esc("ifddir");
if_mdir_code:print_esc("ifmdir");
if_tbox_code:print_esc("iftbox");
if_ybox_code:print_esc("ifybox");
if_dbox_code:print_esc("ifdbox");
if_mbox_code:print_esc("ifmbox");
if_jfont_code:print_esc("ifjfont");
if_tfont_code:print_esc("iftfont");
@z
@x [28.501] l.10073 - pTeX: iftdir, ifydir, ifddir, iftbox, ifybox, ifdbox
if_void_code, if_hbox_code, if_vbox_code: @<Test box register status@>;
@y
if_tdir_code: b:=(abs(direction)=dir_tate);
if_ydir_code: b:=(abs(direction)=dir_yoko);
if_ddir_code: b:=(abs(direction)=dir_dtou);
if_mdir_code: b:=(direction<0);
if_void_code, if_hbox_code, if_vbox_code, if_tbox_code, if_ybox_code, if_dbox_code, if_mbox_code:
@<Test box register status@>;
if_jfont_code, if_tfont_code:
begin scan_font_ident;
if this_if=if_jfont_code then b:=(font_dir[cur_val]=dir_yoko)
else if this_if=if_tfont_code then b:=(font_dir[cur_val]=dir_tate);
end;
@z
@x [28.505] l.10118 - pTeX: Test box register status : iftbox, ifybox, ifdbox
if this_if=if_void_code then b:=(p=null)
else if p=null then b:=false
else if this_if=if_hbox_code then b:=(type(p)=hlist_node)
else b:=(type(p)=vlist_node);
@y
if this_if=if_void_code then b:=(p=null)
else if p=null then b:=false
else begin
if type(p)=dir_node then p:=list_ptr(p);
if this_if=if_hbox_code then b:=(type(p)=hlist_node)
else if this_if=if_vbox_code then b:=(type(p)=vlist_node)
else if this_if=if_tbox_code then b:=(abs(box_dir(p))=dir_tate)
else if this_if=if_ybox_code then b:=(abs(box_dir(p))=dir_yoko)
else if this_if=if_dbox_code then b:=(abs(box_dir(p))=dir_dtou)
else b:=(box_dir(p)<0);
end
@z
@x [28.502] l.10138 - pTeX: if[cat] : Test character : KANJI character
if (cur_cmd>active_char)or(cur_chr>255) then {not a character}
begin m:=relax; n:=256;
end
else begin m:=cur_cmd; n:=cur_chr;
end;
get_x_token_or_active_char;
if (cur_cmd>active_char)or(cur_chr>255) then
begin cur_cmd:=relax; cur_chr:=256;
end;
@y
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
begin m:=cur_cmd; n:=cur_chr;
end
else if (cur_cmd>active_char)or(cur_chr>255) then
begin m:=relax; n:=max_cjk_val;
end
else begin m:=cur_cmd; n:=cur_chr;
end;
get_x_token_or_active_char;
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
begin cur_cmd:=cur_cmd;
end {dummy}
else if (cur_cmd>active_char)or(cur_chr>255) then
begin cur_cmd:=relax; cur_chr:=max_cjk_val;
end;
@z
@x pTeX for Windows, treat filename with 0x5c
@p procedure begin_name;
begin area_delimiter:=0; ext_delimiter:=0; quoted_filename:=false;
end;
@y
@p procedure begin_name;
begin area_delimiter:=0; ext_delimiter:=0; quoted_filename:=false; prev_char:=0;
end;
@z
@x pTeX for Windows, treat filename with 0x5c
else begin str_room(1); append_char(c); {contribute |c| to the current string}
if IS_DIR_SEP(c) then
begin area_delimiter:=cur_length; ext_delimiter:=0;
end
else if c="." then ext_delimiter:=cur_length;
more_name:=true;
end;
end;
@y
else begin str_room(1); append_char(c); {contribute |c| to the current string}
if (IS_DIR_SEP(c)and(not_kanji_char_seq(prev_char,c))) then
begin area_delimiter:=cur_length; ext_delimiter:=0;
end
else if c="." then ext_delimiter:=cur_length;
more_name:=true;
end;
prev_char:=c;
end;
@z
@x [29.518] - print_quoted in pTeX is already defined
@d print_quoted(#) == {print string |#|, omitting quotes}
if #<>0 then
for j:=str_start[#] to str_start[#+1]-1 do
if so(str_pool[j])<>"""" then
print(so(str_pool[j]))
@y
@z
@x [29.519]
@d append_to_name(#)==begin c:=#; if not (c="""") then begin incr(k);
if k<=file_name_size then name_of_file[k]:=xchr[c];
end end
@y
@d append_to_name_char(#)==begin incr(k);
if k<=file_name_size then name_of_file[k]:=xchr[#];
end
@d append_to_name_hex(#)==if (#)<10 then append_to_name_char((#)+"0")
else append_to_name_char((#)-10+"a")
@d append_to_name(#)==begin c:=#; if not (c="""") then append_to_name_char(c); end
@d append_to_name_escape(#)==begin
if (#)>=@"100 then begin
c:=(#)-@"100;
append_to_name_char(c);
end else begin
c:=#;
if (c>=@"80) and (not isinternalUPTEX) and isterminalUTF8 then begin
append_to_name_char("^");
append_to_name_char("^");
append_to_name_hex(c div 16);
append_to_name_hex(c mod 16);
end else
append_to_name_char(c);
end
end
@d append_to_name_str_pool(#)==if not ((#)="""") then append_to_name_escape(#)
@z
@x l.10389
name_of_file:= xmalloc_array (ASCII_code, length(a)+length(n)+length(e)+1);
@y
name_of_file:= xmalloc_array (ASCII_code, (length(a)+length(n)+length(e))*4+1);
@z
@x [29.519] pack_file_name
for j:=str_start[a] to str_start[a+1]-1 do append_to_name(so(str_pool[j]));
for j:=str_start[n] to str_start[n+1]-1 do append_to_name(so(str_pool[j]));
for j:=str_start[e] to str_start[e+1]-1 do append_to_name(so(str_pool[j]));
@y
for j:=str_start[a] to str_start[a+1]-1 do append_to_name_str_pool(so(str_pool[j]));
for j:=str_start[n] to str_start[n+1]-1 do append_to_name_str_pool(so(str_pool[j]));
for j:=str_start[e] to str_start[e+1]-1 do append_to_name_str_pool(so(str_pool[j]));
@z
@x l.10444
name_of_file := xmalloc_array (ASCII_code, n+(b-a+1)+format_ext_length+1);
@y
name_of_file := xmalloc_array (ASCII_code, (n+(b-a+1)+format_ext_length)*4+1);
@z
@x [29.526] l.10668 - pTeX: scan file name
loop@+begin if (cur_cmd>other_char)or(cur_chr>255) then {not a character}
begin back_input; goto done;
end;
{If |cur_chr| is a space and we're not scanning a token list, check
whether we're at the end of the buffer. Otherwise we end up adding
spurious spaces to file names in some cases.}
if (cur_chr=" ") and (state<>token_list) and (loc>limit) then goto done;
if not more_name(cur_chr) then goto done;
get_x_token;
end;
end;
done: end_name; name_in_progress:=false;
@y
skip_mode:=false;
loop@+begin
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then {is kanji}
begin str_room(2);
append_char(@"100+Hi(cur_chr)); {kanji upper byte}
append_char(@"100+Lo(cur_chr)); {kanji lower byte}
end
else if (cur_cmd>other_char)or(cur_chr>255) then {not an alphabet}
begin back_input; goto done;
end
{If |cur_chr| is a space and we're not scanning a token list, check
whether we're at the end of the buffer. Otherwise we end up adding
spurious spaces to file names in some cases.}
else if ((cur_chr=" ") and (state<>token_list) and (loc>limit)) or not more_name(cur_chr) then goto done;
get_x_token;
end;
end;
done: end_name; name_in_progress:=false;
skip_mode:=true;
@z
@x [29.???] open_log_file
if buffer[l]=end_line_char then decr(l);
for k:=1 to l do print(buffer[k]);
print_ln; {now the transcript file contains the first line of input}
@y
if buffer[l]=end_line_char then decr(l); print_unread_buffer_with_ptenc(1,l+1);
print_ln; {now the transcript file contains the first line of input}
@z
@x [29.536] l.10834 - pTeX:
begin
if src_specials_p or file_line_error_style_p or parse_first_line_p
then
wlog(banner_k)
else
wlog(banner);
@y
begin
if src_specials_p or file_line_error_style_p or parse_first_line_p
then
wlog(banner_k)
else
wlog(banner);
wlog(' (');
wlog(conststringcast(get_enc_string));
wlog(')');
@z
@x [29.???] pTeX - start_input
print_char("("); incr(open_parens);
slow_print(full_source_filename_stack[in_open]); update_terminal;
@y
print_char("("); incr(open_parens);
slow_print_filename(full_source_filename_stack[in_open]); update_terminal;
@z
@x [30.560] l.10968 - pTeX:
This is called BigEndian order.
@!@^BigEndian order@>
@y
This is called BigEndian order.
@!@^BigEndian order@>
We get \TeX\ knowledge about KANJI fonts from \.{JFM} files.
The \.{JFM} format holds more two 16-bit integers, |id| and |nt|,
at the top of the file.
$$\vbox{\halign{\hfil#&$\null=\null$#\hfil\cr
|id|&identification code of the file;\cr
|nt|&number of words in the |char_type| table;\cr}}$$
The identification byte, |id| equals~11 or~9. When \TeX\ reads a font file,
the |id| equals~11 or~9 then the font is the \.{JFM}, othercases it is
the \.{TFM} file. The \.{TFM} holds |lf| at the same postion of |id|,
usually it takes a larger number than~9 or~11.
The |nt| is nonnegative and less than $2^{15}$.
We must have |bc=0|,
$$\hbox{|lf=7+lh+nt+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np|.}$$
@d yoko_jfm_id=11 {for `yoko-kumi' fonts}
@d tate_jfm_id=9 {for `tate-kumi' fonts}
@z
@x [30.544] l.11085 - pTeX: gk_tag
operation looks for both |list_tag| and |ext_tag|.
@y
operation looks for both |list_tag| and |ext_tag|.
If the \.{JFM}, the |lig_tag| is called |gk_tag|. The |gk_tag| means that
this character has a glue/kerning program starting at position |remainder|
in the |glue_kern| array. And a \.{JFM} does not use |tag=2| and |tag=3|.
@z
@x [30.544] l.11088 - pTeX: gk_tag
@d lig_tag=1 {character has a ligature/kerning program}
@y
@d lig_tag=1 {character has a ligature/kerning program}
@d gk_tag=1 {character has a glue/kerning program}
@z
@x [30.549] l.11228 - pTeX:
@<Glob...@>=
@!font_info: ^fmemory_word;
@y
@<Glob...@>=
@!font_info: ^memory_word; {pTeX: use halfword for |char_type| table.}
@!font_dir: ^eight_bits;
{pTeX: direction of fonts, 0 is default, 1 is Yoko, 2 is Tate}
@!font_enc: ^eight_bits;
{pTeX: encoding of fonts, 0 is default, 1 is JIS, 2 is Unicode}
@!font_num_ext: ^integer;
{pTeX: number of the |char_type| table.}
@!jfm_enc: eight_bits; {pTeX: holds scanned result of encoding}
@z
@x [30.550] l.11270 - pTeX:
@!char_base: ^integer;
{base addresses for |char_info|}
@y
@!char_base: ^integer;
{base addresses for |char_info|}
@!ctype_base: ^integer;
{pTeX: base addresses for KANJI character type parameters}
@z
@x
@ @<Set init...@>=
@y
@ @<Set init...@>=
jfm_enc:=0;
@z
@x [30.554] l.11373 - pTeX:
@d orig_char_info_end(#)==#].qqqq
@d orig_char_info(#)==font_info[char_base[#]+orig_char_info_end
@y
@d orig_char_info_end(#)==#].qqqq
@d orig_char_info(#)==font_info[char_base[#]+orig_char_info_end
@#
@d kchar_code_end(#)==#].hh.rh
@d kchar_code(#)==font_info[ctype_base[#]+kchar_code_end
@d kchar_type_end(#)==#].hh.lhfield
@d kchar_type(#)==font_info[ctype_base[#]+kchar_type_end
@z
@x [30.557] l.11413 - pTeX: glue_kern_start
@d lig_kern_start(#)==lig_kern_base[#]+rem_byte {beginning of lig/kern program}
@d lig_kern_restart_end(#)==256*op_byte(#)+rem_byte(#)+32768-kern_base_offset
@d lig_kern_restart(#)==lig_kern_base[#]+lig_kern_restart_end
@y
@d lig_kern_start(#)==lig_kern_base[#]+rem_byte {beginning of lig/kern program}
@d lig_kern_restart_end(#)==256*op_byte(#)+rem_byte(#)+32768-kern_base_offset
@d lig_kern_restart(#)==lig_kern_base[#]+lig_kern_restart_end
@d glue_kern_start(#)==lig_kern_base[#]+rem_byte {beginning of glue/kern program}
@d glue_kern_restart_end(#)==256*op_byte(#)+rem_byte(#)+32768-kern_base_offset
@d glue_kern_restart(#)==lig_kern_base[#]+glue_kern_restart_end
@z
@x [30.560] l.11457 - pTeX: jfm_flag, jfm_id, nt, cx
var k:font_index; {index into |font_info|}
@y
var k:font_index; {index into |font_info|}
@!jfm_flag:dir_default..dir_tate; {direction of the \.{JFM}}
@!nt:halfword; {number of the |char_type| tables}
@!cx:KANJI_code; {kanji code}
@z
@x
@d read_sixteen(#)==begin #:=fbyte;
if #>127 then abort;
fget; #:=#*@'400+fbyte;
end
@y
@d read_sixteen(#)==begin #:=fbyte;
if #>127 then abort;
fget; #:=#*@'400+fbyte;
end
@d read_twentyfourx(#)==begin #:=fbyte;
fget; #:=#*@"100+fbyte;
fget; #:=#+fbyte*@"10000;
end
@z
@x [30.565] l.11548 - pTeX: read tfm size
@ @<Read the {\.{TFM}} size fields@>=
begin read_sixteen(lf);
fget; read_sixteen(lh);
fget; read_sixteen(bc);
fget; read_sixteen(ec);
if (bc>ec+1)or(ec>255) then abort;
if bc>255 then {|bc=256| and |ec=255|}
begin bc:=1; ec:=0;
end;
fget; read_sixteen(nw);
fget; read_sixteen(nh);
fget; read_sixteen(nd);
fget; read_sixteen(ni);
fget; read_sixteen(nl);
fget; read_sixteen(nk);
fget; read_sixteen(ne);
fget; read_sixteen(np);
if lf<>6+lh+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np then abort;
if (nw=0)or(nh=0)or(nd=0)or(ni=0) then abort;
end
@y
@ @<Read the {\.{TFM}} size fields@>=
begin read_sixteen(lf);
fget; read_sixteen(lh);
if lf=yoko_jfm_id then
begin jfm_flag:=dir_yoko; nt:=lh;
fget; read_sixteen(lf);
fget; read_sixteen(lh);
end
else if lf=tate_jfm_id then
begin jfm_flag:=dir_tate; nt:=lh;
fget; read_sixteen(lf);
fget; read_sixteen(lh);
end
else begin jfm_flag:=dir_default; nt:=0;
end;
fget; read_sixteen(bc);
fget; read_sixteen(ec);
if (bc>ec+1)or(ec>255) then abort;
if bc>255 then {|bc=256| and |ec=255|}
begin bc:=1; ec:=0;
end;
fget; read_sixteen(nw);
fget; read_sixteen(nh);
fget; read_sixteen(nd);
fget; read_sixteen(ni);
fget; read_sixteen(nl);
fget; read_sixteen(nk);
fget; read_sixteen(ne);
fget; read_sixteen(np);
if jfm_flag<>dir_default then
begin if lf<>7+lh+nt+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np then abort;
end
else
begin if lf<>6+lh+(ec-bc+1)+nw+nh+nd+ni+nl+nk+ne+np then abort;
end;
if (nw=0)or(nh=0)or(nd=0)or(ni=0) then abort;
end
@z
@x [30.566] l.11574 - pTeX: set font_dir & font_num_ext
@<Use size fields to allocate font information@>=
lf:=lf-6-lh; {|lf| words should be loaded into |font_info|}
if np<7 then lf:=lf+7-np; {at least seven parameters will appear}
if (font_ptr=font_max)or(fmem_ptr+lf>font_mem_size) then
@<Apologize for not loading the font, |goto done|@>;
f:=font_ptr+1;
char_base[f]:=fmem_ptr-bc;
width_base[f]:=char_base[f]+ec+1;
height_base[f]:=width_base[f]+nw;
depth_base[f]:=height_base[f]+nh;
italic_base[f]:=depth_base[f]+nd;
lig_kern_base[f]:=italic_base[f]+ni;
kern_base[f]:=lig_kern_base[f]+nl-kern_base_offset;
exten_base[f]:=kern_base[f]+kern_base_offset+nk;
param_base[f]:=exten_base[f]+ne
@y
@<Use size fields to allocate font information@>=
if jfm_flag<>dir_default then
lf:=lf-7-lh {If \.{JFM}, |lf| holds more two-16bit records than \.{TFM}}
else
lf:=lf-6-lh; {|lf| words should be loaded into |font_info|}
if np<7 then lf:=lf+7-np; {at least seven parameters will appear}
if (font_ptr=font_max)or(fmem_ptr+lf>font_mem_size) then
@<Apologize for not loading the font, |goto done|@>;
f:=font_ptr+1;
font_dir[f]:=jfm_flag;
font_enc[f]:=jfm_enc; if jfm_flag=dir_default then font_enc[f]:=0;
font_num_ext[f]:=nt;
ctype_base[f]:=fmem_ptr;
char_base[f]:=ctype_base[f]+nt-bc;
width_base[f]:=char_base[f]+ec+1;
height_base[f]:=width_base[f]+nw;
depth_base[f]:=height_base[f]+nh;
italic_base[f]:=depth_base[f]+nd;
lig_kern_base[f]:=italic_base[f]+ni;
kern_base[f]:=lig_kern_base[f]+nl-kern_base_offset;
exten_base[f]:=kern_base[f]+kern_base_offset+nk;
param_base[f]:=exten_base[f]+ne;
@z
@x [30.569] l.11619 - pTeX: read char_type
@ @<Read character data@>=
for k:=fmem_ptr to width_base[f]-1 do
begin store_four_quarters(font_info[k].qqqq);
@y
@ @<Read character data@>=
if jfm_flag<>dir_default then
for k:=ctype_base[f] to ctype_base[f]+nt-1 do
begin
fget; read_twentyfourx(cx);
if jfm_enc=2 then {Unicode TFM}
font_info[k].hh.rh:=toDVI(fromUCS(cx))
else if jfm_enc=1 then {JIS-encoded TFM}
font_info[k].hh.rh:=toDVI(fromJIS(cx))
else
font_info[k].hh.rh:=tokanji(cx); {|kchar_code|}
fget; cx:=fbyte;
font_info[k].hh.lhfield:=tonum(cx); {|kchar_type|}
end;
for k:=char_base[f]+bc to width_base[f]-1 do
begin store_four_quarters(font_info[k].qqqq);
@z
@x [30.570] l.11638 - pTeX:
@d current_character_being_worked_on==k+bc-fmem_ptr
@y
@d current_character_being_worked_on==k-char_base[f]
@z
@x [30.573] l.11704 - pTeX: jfm
if a>128 then
begin if 256*c+d>=nl then abort;
if a=255 then if k=lig_kern_base[f] then bchar:=b;
end
else begin if b<>bchar then check_existence(b);
if c<128 then check_existence(d) {check ligature}
else if 256*(c-128)+d>=nk then abort; {check kern}
if a<128 then if k-lig_kern_base[f]+a+1>=nl then abort;
end;
end;
@y
if a>128 then
begin if 256*c+d>=nl then abort;
if a=255 then if k=lig_kern_base[f] then bchar:=b;
end
else begin if b<>bchar then check_existence(b);
if c<128 then begin
if jfm_flag<>dir_default then begin if d>=ne then abort; end
else check_existence(d); {check ligature}
end else if 256*(c-128)+d>=nk then abort; {check kern}
if a<128 then if k-lig_kern_base[f]+a+1>=nl then abort;
end;
end;
@z
@x [30.574] l.11720 - pTeX: read jfm exten
for k:=exten_base[f] to param_base[f]-1 do
begin store_four_quarters(font_info[k].qqqq);
@y
if jfm_flag<>dir_default then
for k:=exten_base[f] to param_base[f]-1 do
store_scaled(font_info[k].sc) {NOTE: this area subst for glue program}
else for k:=exten_base[f] to param_base[f]-1 do
begin store_four_quarters(font_info[k].qqqq);
@z
@x [30.576] l.11765 - pTeX: adjust ctype_base
adjust(char_base); adjust(width_base); adjust(lig_kern_base);
@y
adjust(ctype_base);
adjust(char_base); adjust(width_base); adjust(lig_kern_base);
@z
@x [30.577] l.11778 - pTeX: jfont, tfont
if cur_cmd=def_font then f:=cur_font
@y
if cur_cmd=def_jfont then f:=cur_jfont
else if cur_cmd=def_tfont then f:=cur_tfont
else if cur_cmd=def_font then f:=cur_font
@z
@x [30.581]
@p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
@y
@d print_lc_hex(#)==l:=#;
if l<10 then print_char(l+"0")@+else print_char(l-10+"a")
@p procedure char_warning(@!f:internal_font_number;@!c:eight_bits);
var @!l:0..255; {small indices or counters}
@z
@x [30.581]
print_ASCII(c); print(" in font ");
@y
if (c<" ")or(c>"~") then
begin print_char("^"); print_char("^");
if c<64 then print_char(c+64)
else if c<128 then print_char(c-64)
else begin print_lc_hex(c div 16); print_lc_hex(c mod 16); end
end
else print_ASCII(c);
print(" in font ");
@z
@x [30.???]
@ Here is a function that returns a pointer to a character node for a
@y
@ Another warning for (u)\pTeX.
@p procedure char_warning_jis(@!f:internal_font_number;@!jc:KANJI_code);
begin if tracing_lost_chars>0 then
begin begin_diagnostic;
print_nl("Character "); print_kanji(jc); print(" (");
print_hex(jc); print(") cannot be typeset in JIS-encoded JFM ");
slow_print(font_name[f]);
print_char(","); print_nl("so I use .notdef glyph instead.");
end_diagnostic(false);
end;
end;
@ Here is a function that returns a pointer to a character node for a
@z
@x [31.586] l.12189 - pTeX: define set2
@d set1=128 {typeset a character and move right}
@y
@d set1=128 {typeset a character and move right}
@d set2=129 {typeset a character and move right}
@z
@x [31.586] l.12214 - pTeX: define dirchg
@d post_post=249 {postamble ending}
@y
@d post_post=249 {postamble ending}
@d dirchg=255 {direction change}
@z
@x [31.587] l.12246 - pTeX: ex_id_byte
@d id_byte=2 {identifies the kind of \.{DVI} files described here}
@y
@d id_byte=2 {identifies the kind of \.{DVI} files described here}
@d ex_id_byte=3 {identifies the kind of extended \.{DVI} files}
@z
@x [32.590] l.12329 - pTeX: ex_id_byte: This dvi is extended!
@ The last part of the postamble, following the |post_post| byte that
signifies the end of the font definitions, contains |q|, a pointer to the
|post| command that started the postamble. An identification byte, |i|,
comes next; this currently equals~2, as in the preamble.
@y
@ The last part of the postamble, following the |post_post| byte that
signifies the end of the font definitions, contains |q|, a pointer to the
|post| command that started the postamble. An identification byte, |i|,
comes next; this equals~2 or~3. If \pTeX\ primitives are not used then the
identification byte equals~2, othercase this is set to~3.
@z
@x [32.592] l.12405 - pTeX:
{character and font in current |char_node|}
@!c:quarterword;
@!f:internal_font_number;
@y
{character and font in current |char_node|}
@!c:quarterword;
@!f:internal_font_number;
@!dir_used:boolean; {Is this dvi extended?}
@z
@x [32.593] l.12414 - pTeX: dir_used: Is this dvi extended?
doing_leaders:=false; dead_cycles:=0; cur_s:=-1;
@y
doing_leaders:=false; dead_cycles:=0; cur_s:=-1; dir_used:=false;
@z
@x [32.617] l.12846 - pTeX: Initialize dvi_dir as shipout begins
dvi_h:=0; dvi_v:=0; cur_h:=h_offset; dvi_f:=null_font;
@y
dvi_h:=0; dvi_v:=0; cur_h:=h_offset; dvi_f:=null_font;
dvi_dir:=dir_yoko; cur_dir_hv:=dvi_dir;
@z
@x [32.619] l.12892 - pTeX: hlist_out Kanji, disp_node
procedure hlist_out; {output an |hlist_node| box}
label reswitch, move_past, fin_rule, next_p, continue, found;
var base_line: scaled; {the baseline coordinate for this box}
@y
procedure hlist_out; {output an |hlist_node| box}
label reswitch, move_past, fin_rule, next_p, continue, found;
var base_line: scaled; {the baseline coordinate for this box}
@!disp: scaled; {displacement}
@!save_dir:eight_bits; {what |dvi_dir| should pop to}
@!jc:KANJI_code; {temporary register for KANJI codes}
@!ksp_ptr:pointer; {position of |auto_spacing_glue| in the hlist}
@z
@x [32.619] l.12913 - pTeX: hlist_out Kanji, disp_node
incr(cur_s);
if cur_s>0 then dvi_out(push);
if cur_s>max_push then max_push:=cur_s;
save_loc:=dvi_offset+dvi_ptr; base_line:=cur_v; left_edge:=cur_h;
@y
ksp_ptr:=space_ptr(this_box);
incr(cur_s);
if cur_s>0 then dvi_out(push);
if cur_s>max_push then max_push:=cur_s;
save_loc:=dvi_offset+dvi_ptr;
synch_dir;
base_line:=cur_v; left_edge:=cur_h; disp:=0;
@z
@x [32.622] l.12945 - pTeX: chain
@<Output node |p| for |hlist_out|...@>=
reswitch: if is_char_node(p) then
begin synch_h; synch_v;
repeat f:=font(p); c:=character(p);
if f<>dvi_f then @<Change font |dvi_f| to |f|@>;
if font_ec[f]>=qo(c) then if font_bc[f]<=qo(c) then
if char_exists(orig_char_info(f)(c)) then {N.B.: not |char_info|}
begin if c>=qi(128) then dvi_out(set1);
dvi_out(qo(c));@/
cur_h:=cur_h+char_width(f)(orig_char_info(f)(c));
goto continue;
end;
if mltex_enabled_p then
@<Output a substitution, |goto continue| if not possible@>;
continue:
p:=link(p);
until not is_char_node(p);
dvi_h:=cur_h;
end
else @<Output the non-|char_node| |p| for |hlist_out|
and move to the next node@>
@y
@<Output node |p| for |hlist_out|...@>=
reswitch: if is_char_node(p) then
begin synch_h; synch_v;
chain:=false;
repeat f:=font(p); c:=character(p);
if f<>dvi_f then @<Change font |dvi_f| to |f|@>;
if font_dir[f]=dir_default then
begin chain:=false;
if font_ec[f]>=qo(c) then if font_bc[f]<=qo(c) then
if char_exists(orig_char_info(f)(c)) then {N.B.: not |char_info|}
begin if c>=qi(128) then dvi_out(set1);
dvi_out(qo(c));@/
cur_h:=cur_h+char_width(f)(orig_char_info(f)(c));
goto continue;
end;
if mltex_enabled_p then
@<Output a substitution, |goto continue| if not possible@>;
continue:
end
else
begin if chain=false then chain:=true
else begin cur_h:=cur_h+width(ksp_ptr);
if g_sign<>normal then
begin if g_sign=stretching then
begin if stretch_order(ksp_ptr)=g_order then
cur_h:=cur_h+round(float(glue_set(this_box))*stretch(ksp_ptr));
@^real multiplication@>
end
else
begin if shrink_order(ksp_ptr)=g_order then
cur_h:=cur_h-round(float(glue_set(this_box))*shrink(ksp_ptr));
@^real multiplication@>
end;
end;
synch_h;
end;
p:=link(p);
jc:=KANJI(info(p));
if font_enc[f]=2 then {Unicode TFM}
jc:=toUCS(jc)
else if font_enc[f]=1 then {JIS-encoded TFM}
begin if toJIS(jc)=0 then char_warning_jis(f,jc);
jc:=toJIS(jc); end
else
jc:=toDVI(jc);
dvi_out(set2); dvi_out(Hi(jc)); dvi_out(Lo(jc));
cur_h:=cur_h+char_width(f)(orig_char_info(f)(c)); {not |jc|}
end;
dvi_h:=cur_h; p:=link(p);
until not is_char_node(p);
chain:=false;
end
else @<Output the non-|char_node| |p| for |hlist_out|
and move to the next node@>
@z
@x [32.623] l.12982 - pTeX: disp_node, dir_node
@ @<Output the non-|char_node| |p| for |hlist_out|...@>=
begin case type(p) of
hlist_node,vlist_node:@<Output a box in an hlist@>;
rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
goto fin_rule;
end;
whatsit_node: @<Output the whatsit node |p| in an hlist@>;
@y
@ @<Output the non-|char_node| |p| for |hlist_out|...@>=
begin case type(p) of
hlist_node,vlist_node,dir_node:@<Output a box in an hlist@>;
rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
goto fin_rule;
end;
whatsit_node: @<Output the whatsit node |p| in an hlist@>;
disp_node: begin disp:=disp_dimen(p); cur_v:=base_line+disp; end;
@z
@x [32.624] l.13000 - pTeX: output a box(and dir_node) with disp
@ @<Output a box in an hlist@>=
if list_ptr(p)=null then cur_h:=cur_h+width(p)
else begin save_h:=dvi_h; save_v:=dvi_v;
cur_v:=base_line+shift_amount(p); {shift the box down}
@y
@ @<Output a box in an hlist@>=
if list_ptr(p)=null then cur_h:=cur_h+width(p)
else begin save_h:=dvi_h; save_v:=dvi_v; save_dir:=dvi_dir;
cur_v:=base_line+disp+shift_amount(p); {shift the box down}
@z
@x [32.624] l.13005 - pTeX: output a box(and dir_node) with disp
if type(p)=vlist_node then vlist_out@+else hlist_out;
dvi_h:=save_h; dvi_v:=save_v;
cur_h:=edge+width(p); cur_v:=base_line;
end
@y
case type(p) of
hlist_node:hlist_out;
vlist_node:vlist_out;
dir_node:dir_out;
endcases;
dvi_h:=save_h; dvi_v:=save_v; dvi_dir:=save_dir;
cur_h:=edge+width(p); cur_v:=base_line+disp; cur_dir_hv:=save_dir;
end
@z
@x [32.625] l.13010 - pTeX: Output a rule with disp
@ @<Output a rule in an hlist@>=
if is_running(rule_ht) then rule_ht:=height(this_box);
if is_running(rule_dp) then rule_dp:=depth(this_box);
@y
@ @<Output a rule in an hlist@>=
if is_running(rule_ht) then rule_ht:=height(this_box)+disp;
if is_running(rule_dp) then rule_dp:=depth(this_box)-disp;
@z
@x [32.629] l.13103 - pTeX: Output a leader box(and dir_node) with disp
@<Output a leader box at |cur_h|, ...@>=
begin cur_v:=base_line+shift_amount(leader_box); synch_v; save_v:=dvi_v;@/
synch_h; save_h:=dvi_h; temp_ptr:=leader_box;
@y
@<Output a leader box at |cur_h|, ...@>=
begin cur_v:=base_line+disp+shift_amount(leader_box); synch_v; save_v:=dvi_v;@/
synch_h; save_h:=dvi_h; save_dir:=dvi_dir; temp_ptr:=leader_box;
@z
@x [32.629] l.13107 - pTeX: Output a leader box(and dir_node) with disp
if type(leader_box)=vlist_node then vlist_out@+else hlist_out;
doing_leaders:=outer_doing_leaders;
dvi_v:=save_v; dvi_h:=save_h; cur_v:=base_line;
cur_h:=save_h+leader_wd+lx;
end
@y
case type(leader_box) of
hlist_node:hlist_out;
vlist_node:vlist_out;
dir_node:dir_out;
endcases;
doing_leaders:=outer_doing_leaders;
dvi_v:=save_v; dvi_h:=save_h; dvi_dir:=save_dir;
cur_v:=base_line; cur_h:=save_h+leader_wd+lx; cur_dir_hv:=save_dir;
end
@z
@x [32.630] l.13133 - pTeX: vlist_out
begin cur_g:=0; cur_glue:=float_constant(0);
this_box:=temp_ptr; g_order:=glue_order(this_box);
g_sign:=glue_sign(this_box); p:=list_ptr(this_box);
incr(cur_s);
if cur_s>0 then dvi_out(push);
if cur_s>max_push then max_push:=cur_s;
save_loc:=dvi_offset+dvi_ptr; left_edge:=cur_h; cur_v:=cur_v-height(this_box);
@y
@!save_dir:integer; {what |dvi_dir| should pop to}
begin cur_g:=0; cur_glue:=float_constant(0);
this_box:=temp_ptr; g_order:=glue_order(this_box);
g_sign:=glue_sign(this_box); p:=list_ptr(this_box);
incr(cur_s);
if cur_s>0 then dvi_out(push);
if cur_s>max_push then max_push:=cur_s;
save_loc:=dvi_offset+dvi_ptr;
synch_dir;
left_edge:=cur_h; cur_v:=cur_v-height(this_box);
@z
@x [32.632] l.13155 - pTeX: output non-char-node
@ @<Output the non-|char_node| |p| for |vlist_out|@>=
begin case type(p) of
hlist_node,vlist_node:@<Output a box in a vlist@>;
rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
goto fin_rule;
end;
@y
@ @<Output the non-|char_node| |p| for |vlist_out|@>=
begin case type(p) of
hlist_node,vlist_node,dir_node: @<Output a box in a vlist@>;
rule_node: begin rule_ht:=height(p); rule_dp:=depth(p); rule_wd:=width(p);
goto fin_rule;
end;
@z
@x [32.633] l.13175 - pTeX: Output a box in a vlist
@<Output a box in a vlist@>=
if list_ptr(p)=null then cur_v:=cur_v+height(p)+depth(p)
else begin cur_v:=cur_v+height(p); synch_v;
save_h:=dvi_h; save_v:=dvi_v;
@y
@<Output a box in a vlist@>=
if list_ptr(p)=null then cur_v:=cur_v+height(p)+depth(p)
else begin cur_v:=cur_v+height(p); synch_v;
save_h:=dvi_h; save_v:=dvi_v; save_dir:=dvi_dir;
@z
@x [32.633] l.13181 - pTeX: Output a box in a vlist
if type(p)=vlist_node then vlist_out@+else hlist_out;
dvi_h:=save_h; dvi_v:=save_v;
cur_v:=save_v+depth(p); cur_h:=left_edge;
end
@y
case type(p) of
hlist_node:hlist_out;
vlist_node:vlist_out;
dir_node:dir_out;
endcases;
dvi_h:=save_h; dvi_v:=save_v; dvi_dir:=save_dir;
cur_v:=save_v+depth(p); cur_h:=left_edge; cur_dir_hv:=save_dir;
end
@z
@x [32.637] l.13256 - pTeX: Output a leader in a vlist
@<Output a leader box at |cur_v|, ...@>=
@y
@<Output a leader box at |cur_v|, ...@>=
@z
@x [32.637] l.13258 - pTeX: Output a leader in a vlist
cur_v:=cur_v+height(leader_box); synch_v; save_v:=dvi_v;
temp_ptr:=leader_box;
outer_doing_leaders:=doing_leaders; doing_leaders:=true;
if type(leader_box)=vlist_node then vlist_out@+else hlist_out;
doing_leaders:=outer_doing_leaders;
dvi_v:=save_v; dvi_h:=save_h; cur_h:=left_edge;
cur_v:=save_v-height(leader_box)+leader_ht+lx;
end
@y
cur_v:=cur_v+height(leader_box); synch_v; save_v:=dvi_v; save_dir:=dvi_dir;
temp_ptr:=leader_box;
outer_doing_leaders:=doing_leaders; doing_leaders:=true;
case type(leader_box) of
hlist_node:hlist_out;
vlist_node:vlist_out;
dir_node:dir_out;
endcases;
doing_leaders:=outer_doing_leaders;
dvi_v:=save_v; dvi_h:=save_h; dvi_dir:=save_dir;
cur_h:=left_edge; cur_v:=save_v-height(leader_box)+leader_ht+lx;
cur_dir_hv:=save_dir;
end
@z
@x [32.638] l.13270 - pTeX: ship out
@p procedure ship_out(@!p:pointer); {output the box |p|}
label done;
var page_loc:integer; {location of the current |bop|}
@y
@p procedure ship_out(@!p:pointer); {output the box |p|}
label done;
var page_loc:integer; {location of the current |bop|}
@!del_node:pointer; {used when delete the |dir_node| continued box}
@z
@x [32.640] l.13294 - pTeX: ship out
@<Ship box |p| out@>;
@y
if type(p)=dir_node then
begin del_node:=p; p:=list_ptr(p);
delete_glue_ref(space_ptr(del_node));
delete_glue_ref(xspace_ptr(del_node));
free_node(del_node,box_node_size);
end;
flush_node_list(link(p)); link(p):=null;
if abs(box_dir(p))<>dir_yoko then p:=new_dir_node(p,dir_yoko);
@<Ship box |p| out@>;
@z
@x [32.641] l.13327 - pTeX: dir_node
if type(p)=vlist_node then vlist_out@+else hlist_out;
@y
case type(p) of
hlist_node:hlist_out;
vlist_node:vlist_out;
dir_node:dir_out;
endcases;
@z
@x [33.642] l.13394 - pTeX: postamble's id_byte
@<Output the font definitions for all fonts that were used@>;
dvi_out(post_post); dvi_four(last_bop); dvi_out(id_byte);@/
@y
@<Output the font definitions for all fonts that were used@>;
dvi_out(post_post); dvi_four(last_bop);
if dir_used then dvi_out(ex_id_byte) else dvi_out(id_byte);@/
@z
@x [33.647] l.13515 - pTeX: cur_kanji_skip, cur_xkanji_skip, last_disp
@ If the global variable |adjust_tail| is non-null, the |hpack| routine
also removes all occurrences of |ins_node|, |mark_node|, and |adjust_node|
items and appends the resulting material onto the list that ends at
location |adjust_tail|.
@<Glob...@>=
@!adjust_tail:pointer; {tail of adjustment list}
@y
@ If the global variable |adjust_tail| is non-null, the |hpack| routine
also removes all occurrences of |ins_node|, |mark_node|, and |adjust_node|
items and appends the resulting material onto the list that ends at
location |adjust_tail|.
@<Glob...@>=
@!adjust_tail:pointer; {tail of adjustment list}
@!last_disp:scaled; {displacement at end of list}
@!cur_kanji_skip:pointer;
@!cur_xkanji_skip:pointer;
@z
@x [33.648] l.13518 - pTeX: cur_kanji_skip, cur_xkanji_skip
@ @<Set init...@>=adjust_tail:=null; last_badness:=0;
@y
@ @<Set init...@>=adjust_tail:=null; last_badness:=0;
cur_kanji_skip:=zero_glue; cur_xkanji_skip:=zero_glue;
{ koko
|incr(glue_ref_count(cur_kanji_skip));|
|incr(glue_ref_count(cur_xkanji_skip));|
}
@z
@x [33.649] l.13522 - pTeX: hpack
@p function hpack(@!p:pointer;@!w:scaled;@!m:small_number):pointer;
label reswitch, common_ending, exit;
var r:pointer; {the box node that will be returned}
@y
@p function hpack(@!p:pointer;@!w:scaled;@!m:small_number):pointer;
label reswitch, common_ending, exit;
var r:pointer; {the box node that will be returned}
@!k:pointer; {points to a |kanji_space| specification}
@!disp:scaled; {displacement}
@z
@x [33.649] l.13535 - pTeX: hpack
q:=r+list_offset; link(q):=p;@/
h:=0; @<Clear dimensions to zero@>;
@y
set_box_dir(r)(dir_default);
space_ptr(r):=cur_kanji_skip; xspace_ptr(r):=cur_xkanji_skip;
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
k:=cur_kanji_skip;
q:=r+list_offset; link(q):=p;@/
h:=0; @<Clear dimensions to zero@>;
disp:=0;
@z
@x [33.649] l.13537 - pTeX: hpack
while p<>null do @<Examine node |p| in the hlist, taking account of its effect
on the dimensions of the new box, or moving it to the adjustment list;
then advance |p| to the next node@>;
if adjust_tail<>null then link(adjust_tail):=null;
height(r):=h; depth(r):=d;@/
@<Determine the value of |width(r)| and the appropriate glue setting;
then |return| or |goto common_ending|@>;
common_ending: @<Finish issuing a diagnostic message
for an overfull or underfull hbox@>;
exit: hpack:=r;
end;
@y
while p<>null do @<Examine node |p| in the hlist, taking account of its effect
on the dimensions of the new box, or moving it to the adjustment list;
then advance |p| to the next node@>;
if adjust_tail<>null then link(adjust_tail):=null;
height(r):=h; depth(r):=d;@/
@<Determine the value of |width(r)| and the appropriate glue setting;
then |return| or |goto common_ending|@>;
common_ending:
@<Finish issuing a diagnostic message for an overfull or underfull hbox@>;
exit: last_disp:=disp; hpack:=r;
end;
@z
@x [33.651] l.13556 - pTeX: dir_node, disp_node, reset chain
@ @<Examine node |p| in the hlist, taking account of its effect...@>=
@^inner loop@>
begin reswitch: while is_char_node(p) do
@<Incorporate character dimensions into the dimensions of
the hbox that will contain~it, then move to the next node@>;
if p<>null then
begin case type(p) of
hlist_node,vlist_node,rule_node,unset_node:
@<Incorporate box dimensions into the dimensions of
the hbox that will contain~it@>;
ins_node,mark_node,adjust_node: if adjust_tail<>null then
@<Transfer node |p| to the adjustment list@>;
whatsit_node:@<Incorporate a whatsit node into an hbox@>;
@y
@ @<Examine node |p| in the hlist, taking account of its effect...@>=
@^inner loop@>
begin reswitch: chain:=false;
while is_char_node(p) do
@<Incorporate character dimensions into the dimensions of
the hbox that will contain~it, then move to the next node@>;
if p<>null then
begin case type(p) of
hlist_node,vlist_node,dir_node,rule_node,unset_node:
@<Incorporate box dimensions into the dimensions of
the hbox that will contain~it@>;
ins_node,mark_node,adjust_node: if adjust_tail<>null then
@<Transfer node |p| to the adjustment list@>;
whatsit_node:@<Incorporate a whatsit node into an hbox@>;
disp_node:disp:=disp_dimen(p);
@z
@x [33.653] l.13589 - pTeX: displacement
@<Incorporate box dimensions into the dimensions of the hbox...@>=
begin x:=x+width(p);
if type(p)>=rule_node then s:=0 @+else s:=shift_amount(p);
if height(p)-s>h then h:=height(p)-s;
if depth(p)+s>d then d:=depth(p)+s;
end
@y
@<Incorporate box dimensions into the dimensions of the hbox...@>=
begin x:=x+width(p);
if type(p)>=rule_node then s:=disp @+else s:=shift_amount(p)+disp;
if height(p)-s>h then h:=height(p)-s;
if depth(p)+s>d then d:=depth(p)+s;
end
@z
@x [33.654] l.13601 - pTeX: auto spacing, displacement
@<Incorporate character dimensions into the dimensions of the hbox...@>=
begin f:=font(p); i:=char_info(f)(character(p)); hd:=height_depth(i);
x:=x+char_width(f)(i);@/
s:=char_height(f)(hd);@+if s>h then h:=s;
s:=char_depth(f)(hd);@+if s>d then d:=s;
p:=link(p);
end
@y
@<Incorporate character dimensions into the dimensions of the hbox...@>=
begin f:=font(p); i:=char_info(f)(character(p)); hd:=height_depth(i);
x:=x+char_width(f)(i);@/
s:=char_height(f)(hd)-disp; if s>h then h:=s;
s:=char_depth(f)(hd)+disp; if s>d then d:=s;
if font_dir[f]<>dir_default then
begin p:=link(p);
if chain then
begin x:=x+width(k);@/
o:=stretch_order(k); total_stretch[o]:=total_stretch[o]+stretch(k);
o:=shrink_order(k); total_shrink[o]:=total_shrink[o]+shrink(k);
end
else chain:=true;
end
else chain:=false;
p:=link(p);
end
@z
@x [33.668] l.13779 - pTeX: vpackage
begin last_badness:=0; r:=get_node(box_node_size); type(r):=vlist_node;
subtype(r):=min_quarterword; shift_amount(r):=0;
@y
begin last_badness:=0; r:=get_node(box_node_size); type(r):=vlist_node;
subtype(r):=min_quarterword; shift_amount(r):=0; set_box_dir(r)(dir_default);
space_ptr(r):=zero_glue; xspace_ptr(r):=zero_glue;
add_glue_ref(zero_glue); add_glue_ref(zero_glue);
@z
@x [33.669] l.13797 - pTeX: dir_node
@ @<Examine node |p| in the vlist, taking account of its effect...@>=
begin if is_char_node(p) then confusion("vpack")
@:this can't happen vpack}{\quad vpack@>
else case type(p) of
hlist_node,vlist_node,rule_node,unset_node:
@<Incorporate box dimensions into the dimensions of
the vbox that will contain~it@>;
@y
@ @<Examine node |p| in the vlist, taking account of its effect...@>=
begin if is_char_node(p) then confusion("vpack")
@:this can't happen vpack}{\quad vpack@>
else case type(p) of
hlist_node,vlist_node,dir_node,rule_node,unset_node:
@<Incorporate box dimensions into the dimensions of
the vbox that will contain~it@>;
@z
@x [34.681] l.14026 - pTeX: math noad
@d noad_size=4 {number of words in a normal noad}
@d nucleus(#)==#+1 {the |nucleus| field of a noad}
@d supscr(#)==#+2 {the |supscr| field of a noad}
@d subscr(#)==#+3 {the |subscr| field of a noad}
@y
\yskip\hang In Japanese, |math_type(q)=math_jchar| means that |fam(q)|
refers to one of the sixteen kanji font families, and |KANJI(q)| is the
internal kanji code number.
@^Japanese extentions@>
@d noad_size=5 {number of words in a normal noad}
@d nucleus(#)==#+1 {the |nucleus| field of a noad}
@d supscr(#)==#+2 {the |supscr| field of a noad}
@d subscr(#)==#+3 {the |subscr| field of a noad}
@d kcode_noad(#)==#+4
@d math_kcode(#)==info(#+4) {the |kanji character| field of a noad}
@d kcode_noad_nucleus(#)==#+3
@d math_kcode_nucleus(#)==info(#+3)
{the |kanji character| field offset from nucleus}
@#
@d math_jchar=6
@d math_text_jchar=7
@z
@x [35.681] pTeX: explicit box in math mode
@d math_char=1 {|math_type| when the attribute is simple}
@d sub_box=2 {|math_type| when the attribute is a box}
@d sub_mlist=3 {|math_type| when the attribute is a formula}
@d math_text_char=4 {|math_type| when italic correction is dubious}
@y
@d math_char=1 {|math_type| when the attribute is simple}
@d sub_box=2 {|math_type| when the attribute is a box}
@d sub_exp_box=3 {|math_type| when the attribute is an explicit created box}
@d sub_mlist=4 {|math_type| when the attribute is a formula}
@d math_text_char=5 {|math_type| when italic correction is dubious}
@<Initialize table entries...@>=
text_baseline_shift_factor:=1000;
script_baseline_shift_factor:=700;
scriptscript_baseline_shift_factor:=500;
@z
@x [34.683] radical with japanese char
@d left_delimiter(#)==#+4 {first delimiter field of a noad}
@d right_delimiter(#)==#+5 {second delimiter field of a fraction noad}
@d radical_noad=inner_noad+1 {|type| of a noad for square roots}
@d radical_noad_size=5 {number of |mem| words in a radical noad}
@y
@d left_delimiter(#)==#+5 {first delimiter field of a noad}
@d right_delimiter(#)==#+4 {second delimiter field of a fraction noad}
@d radical_noad=inner_noad+1 {|type| of a noad for square roots}
@d radical_noad_size=6 {number of |mem| words in a radical noad}
@z
@x [34.686] l.14129 - pTeX: new_noad
mem[supscr(p)].hh:=empty_field;
new_noad:=p;
@y
mem[supscr(p)].hh:=empty_field;
mem[kcode_noad(p)].hh:=empty_field;
new_noad:=p;
@z
@x [34.687] accent with japanese char
@d accent_noad_size=5 {number of |mem| words in an accent noad}
@d accent_chr(#)==#+4 {the |accent_chr| field of an accent noad}
@y
@d accent_noad_size=6 {number of |mem| words in an accent noad}
@d accent_chr(#)==#+5 {the |accent_chr| field of an accent noad}
@z
@x [34.691] l.14236 - pTeX: print_fam_and_char
procedure print_fam_and_char(@!p:pointer); {prints family and character}
begin print_esc("fam"); print_int(fam(p)); print_char(" ");
print_ASCII(qo(character(p)));
@y
procedure print_fam_and_char(@!p:pointer;@!t:small_number);
{prints family and character}
var @!cx:KANJI_code; {temporary register for KANJI}
begin print_esc("fam"); print_int(fam(p)); print_char(" ");
if t=math_char then print_ASCII(qo(character(p)))
else begin KANJI(cx):=math_kcode_nucleus(p); print_kanji(cx);
end;
@z
@x [34.692] l.14266 - pTeX: print_subsidiary_data
math_char: begin print_ln; print_current_string; print_fam_and_char(p);
end;
sub_box: show_info; {recursive call}
@y
math_char, math_jchar: begin print_ln; print_current_string;
print_fam_and_char(p,math_type(p));
end;
sub_box, sub_exp_box: show_info; {recursive call}
@z
@x [34.696] l.14327 - pTeX: print_fam_and_char
accent_noad: begin print_esc("accent"); print_fam_and_char(accent_chr(p));
@y
accent_noad: begin print_esc("accent");
print_fam_and_char(accent_chr(p),math_char);
@z
@x [35.698] pTeX: flush choice_node
begin if math_type(nucleus(p))>=sub_box then
flush_node_list(info(nucleus(p)));
if math_type(supscr(p))>=sub_box then
flush_node_list(info(supscr(p)));
if math_type(subscr(p))>=sub_box then
flush_node_list(info(subscr(p)));
@y
begin if (math_type(nucleus(p))>=sub_box)
and (math_type(nucleus(p))<>math_jchar)
and (math_type(nucleus(p))<>math_text_jchar) then
flush_node_list(info(nucleus(p)));
if math_type(supscr(p))>=sub_box
and (math_type(supscr(p))<>math_jchar)
and (math_type(supscr(p))<>math_text_jchar) then
flush_node_list(info(supscr(p)));
if math_type(subscr(p))>=sub_box
and (math_type(subscr(p))<>math_jchar)
and (math_type(subscr(p))<>math_text_jchar) then
flush_node_list(info(subscr(p)));
@z
@x [35.715] l.14687 - pTeX: rebox
begin if type(b)=vlist_node then b:=hpack(b,natural);
p:=list_ptr(b);
if (is_char_node(p))and(link(p)=null) then
begin f:=font(p); v:=char_width(f)(char_info(f)(character(p)));
if v<>width(b) then link(p):=new_kern(width(b)-v);
end;
@y
begin if type(b)<>hlist_node then b:=hpack(b,natural);
p:=list_ptr(b);
if is_char_node(p) then
if font_dir[font(p)]<>dir_default then
begin if link(link(p))=null then
begin f:=font(p); v:=char_width(f)(orig_char_info(f)(character(p)));
if v<>width(b) then link(link(p)):=new_kern(width(b)-v);
end
end
else if link(p)=null then
begin f:=font(p); v:=char_width(f)(orig_char_info(f)(character(p)));
if v<>width(b) then link(p):=new_kern(width(b)-v);
end;
delete_glue_ref(space_ptr(b)); delete_glue_ref(xspace_ptr(b));
@z
@x [36.720] l.14783 - pTeX: clean_box
function clean_box(@!p:pointer;@!s:small_number):pointer;
@y
function shift_sub_exp_box(@!q:pointer):pointer;
{ We assume that |math_type(q)=sub_exp_box| }
var d: halfword; {displacement}
begin
if abs(direction)=abs(box_dir(info(q))) then begin
if abs(direction)=dir_tate then begin
if box_dir(info(q))=dir_tate then d:=t_baseline_shift
else d:=y_baseline_shift end
else d:=y_baseline_shift;
if cur_style<script_style then
d:=xn_over_d(d,text_baseline_shift_factor, 1000)
else if cur_style<script_script_style then
d:=xn_over_d(d,script_baseline_shift_factor, 1000)
else
d:=xn_over_d(d,scriptscript_baseline_shift_factor, 1000);
shift_amount(info(q)):=shift_amount(info(q))-d;
end;
math_type(q):=sub_box;
shift_sub_exp_box:=info(q);
end;
function clean_box(@!p:pointer;@!s:small_number;@!jc:halfword):pointer;
@z
@x [36.720] l.14790 - pTeX: clean_box
math_char: begin cur_mlist:=new_noad; mem[nucleus(cur_mlist)]:=mem[p];
end;
sub_box: begin q:=info(p); goto found;
end;
@y
math_char: begin cur_mlist:=new_noad; mem[nucleus(cur_mlist)]:=mem[p];
end;
math_jchar: begin cur_mlist:=new_noad; mem[nucleus(cur_mlist)]:=mem[p];
math_kcode(cur_mlist):=jc;
end;
sub_box: begin q:=info(p); goto found;
end;
sub_exp_box: begin q:=shift_sub_exp_box(p); goto found;
end;
@z
@x [36.720] l.14802 - pTeX: clean_box
found: if is_char_node(q)or(q=null) then x:=hpack(q,natural)
else if (link(q)=null)and(type(q)<=vlist_node)and(shift_amount(q)=0) then
x:=q {it's already clean}
else x:=hpack(q,natural);
@y
found: if is_char_node(q)or(q=null) then x:=hpack(q,natural)
else if (link(q)=null)and(type(q)<=dir_node)and(shift_amount(q)=0) then
x:=q {it's already clean}
else x:=hpack(q,natural);
@z
@x [36.721] l.14814 - pTeX: skip 2nd kanji node
if is_char_node(q) then
begin r:=link(q);
@y
if is_char_node(q) then
begin if font_dir[font(q)]<>dir_default then q:=link(q);
r:=link(q);
@z
@x [36.722] l.14833 - pTeX: fetch
else begin if (qo(cur_c)>=font_bc[cur_f])and(qo(cur_c)<=font_ec[cur_f]) then
cur_i:=orig_char_info(cur_f)(cur_c)
else cur_i:=null_character;
if not(char_exists(cur_i)) then
begin char_warning(cur_f,qo(cur_c));
math_type(a):=empty; cur_i:=null_character;
end;
end;
@y
else begin if font_dir[cur_f]<>dir_default then
cur_c:=qi(get_jfm_pos(KANJI(math_kcode_nucleus(a)),cur_f));
if (qo(cur_c)>=font_bc[cur_f])and(qo(cur_c)<=font_ec[cur_f]) then
cur_i:=orig_char_info(cur_f)(cur_c)
else cur_i:=null_character;
if not(char_exists(cur_i)) then
begin char_warning(cur_f,qo(cur_c));
math_type(a):=empty; cur_i:=null_character;
end;
end;
@z
@x [36.726] l.14892 - pTeX: mlist_to_hlist
var mlist:pointer; {beginning of the given list}
@!penalties:boolean; {should penalty nodes be inserted?}
@!style:small_number; {the given style}
@y
var mlist:pointer; {beginning of the given list}
@!penalties:boolean; {should penalty nodes be inserted?}
@!style:small_number; {the given style}
@!u:pointer; {temporary register}
@z
@x [36.726] l.14913 - pTeX: mlist_to_hlist
@<Make a second pass over the mlist, removing all noads and inserting the
proper spacing and penalties@>;
end;
@y
@<Make a second pass over the mlist, removing all noads and inserting the
proper spacing and penalties@>;
p:=new_null_box; link(p):=link(temp_head);
adjust_hlist(p,false); link(temp_head):=link(p);
delete_glue_ref(space_ptr(p)); delete_glue_ref(xspace_ptr(p));
free_node(p,box_node_size);
end;
@z
@x [36.727] l.14928 - pTeX: free box
free_node(z,box_node_size);
@y
delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
free_node(z,box_node_size);
@z
@x [36.730] l.14976 - pTeX: free box: disp_node
kern_node: begin math_kern(q,cur_mu); goto done_with_node;
end;
@y
kern_node: begin math_kern(q,cur_mu); goto done_with_node;
end;
disp_node: goto done_with_node;
@z
@x [36.734] l.15046 - pTeX: make_over:clean_box
overbar(clean_box(nucleus(q),cramped_style(cur_style)),@|
@y
overbar(clean_box(nucleus(q),cramped_style(cur_style),math_kcode(q)),@|
@z
@x [36.735] l.15055 - pTeX: make_under:clean_box
begin x:=clean_box(nucleus(q),cur_style);
@y
begin x:=clean_box(nucleus(q),cur_style,math_kcode(q));
@z
@x [36.736] l.15069 - pTeX: make_under:clean_box
if type(v)<>vlist_node then confusion("vcenter");
@y
if type(v)=dir_node then
begin if type(list_ptr(v))<>vlist_node then confusion("dircenter")
end
else begin if type(v)<>vlist_node then confusion("vcenter")
end;
@z
@x [36.737] l.15089 - pTeX: make_radical:clean_box
begin x:=clean_box(nucleus(q),cramped_style(cur_style));
@y
begin x:=clean_box(nucleus(q),cramped_style(cur_style),math_kcode(q));
@z
@x [36.738] l.15123 - pTeX: make_math_accent:clean_box
x:=clean_box(nucleus(q),cramped_style(cur_style)); w:=width(x); h:=height(x);
@y
x:=clean_box(nucleus(q),cramped_style(cur_style),math_kcode(q));
w:=width(x); h:=height(x);
@z
@x [36.742] l.15186 - pTeX: make_math_accent:clean_box
x:=clean_box(nucleus(q),cur_style); delta:=delta+height(x)-h; h:=height(x);
@y
x:=clean_box(nucleus(q),cur_style,math_kcode(q));
delta:=delta+height(x)-h; h:=height(x);
@z
@x [36.744] l.15211 - pTeX: make_fraction:clean_box
x:=clean_box(numerator(q),num_style(cur_style));
z:=clean_box(denominator(q),denom_style(cur_style));
@y
x:=clean_box(numerator(q),num_style(cur_style),math_kcode(q));
z:=clean_box(denominator(q),denom_style(cur_style),math_kcode(q));
@z
@x [36.749] l.15304 - pTeX: make_op:clean_box
delta:=char_italic(cur_f)(cur_i); x:=clean_box(nucleus(q),cur_style);
@y
delta:=char_italic(cur_f)(cur_i);
x:=clean_box(nucleus(q),cur_style,math_kcode(q));
@z
@x [36.750] l.15321 - pTeX: make_op:clean_box
begin x:=clean_box(supscr(q),sup_style(cur_style));
y:=clean_box(nucleus(q),cur_style);
z:=clean_box(subscr(q),sub_style(cur_style));
@y
begin x:=clean_box(supscr(q),sup_style(cur_style),math_kcode(q));
y:=clean_box(nucleus(q),cur_style,math_kcode(q));
z:=clean_box(subscr(q),sub_style(cur_style),math_kcode(q));
@z
@x [36.751] l.15342 - pTeX: free box node
begin free_node(x,box_node_size); list_ptr(v):=y;
end
@y
begin
delete_glue_ref(space_ptr(x)); delete_glue_ref(xspace_ptr(x));
free_node(x,box_node_size); list_ptr(v):=y;
end
@z
@x [36.751] l.15350 - pTeX: free box node
if math_type(subscr(q))=empty then free_node(z,box_node_size)
@y
if math_type(subscr(q))=empty then begin
delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
free_node(z,box_node_size)
end
@z
@x [36.752] l.15369 - pTeX: make_ord
procedure make_ord(@!q:pointer);
label restart,exit;
var a:integer; {address of lig/kern instruction}
@!p,@!r:pointer; {temporary registers for list manipulation}
begin restart:@t@>@;@/
if math_type(subscr(q))=empty then if math_type(supscr(q))=empty then
if math_type(nucleus(q))=math_char then
begin p:=link(q);
if p<>null then if (type(p)>=ord_noad)and(type(p)<=punct_noad) then
if math_type(nucleus(p))=math_char then
if fam(nucleus(p))=fam(nucleus(q)) then
begin math_type(nucleus(q)):=math_text_char;
fetch(nucleus(q));
if char_tag(cur_i)=lig_tag then
begin a:=lig_kern_start(cur_f)(cur_i);
cur_c:=character(nucleus(p));
cur_i:=font_info[a].qqqq;
if skip_byte(cur_i)>stop_flag then
begin a:=lig_kern_restart(cur_f)(cur_i);
cur_i:=font_info[a].qqqq;
end;
loop@+ begin @<If instruction |cur_i| is a kern with |cur_c|, attach
the kern after~|q|; or if it is a ligature with |cur_c|, combine
noads |q| and~|p| appropriately; then |return| if the cursor has
moved past a noad, or |goto restart|@>;
if skip_byte(cur_i)>=stop_flag then return;
a:=a+qo(skip_byte(cur_i))+1;
cur_i:=font_info[a].qqqq;
end;
end;
end;
end;
exit:end;
@y
procedure make_ord(@!q:pointer);
label restart,exit;
var a:integer; {address of lig/kern instruction}
@!gp,@!gq,@!p,@!r:pointer; {temporary registers for list manipulation}
@!rr:halfword;
begin restart:@t@>@;@/
if (math_type(subscr(q))=empty)and(math_type(supscr(q))=empty)and@|
((math_type(nucleus(q))=math_char)or(math_type(nucleus(q))=math_jchar)) then
begin p:=link(q);
if p<>null then if (type(p)>=ord_noad)and(type(p)<=punct_noad) then
if fam(nucleus(p))=fam(nucleus(q)) then
if math_type(nucleus(p))=math_char then
begin math_type(nucleus(q)):=math_text_char;
fetch(nucleus(q));
if char_tag(cur_i)=lig_tag then
begin a:=lig_kern_start(cur_f)(cur_i);
cur_c:=character(nucleus(p));
cur_i:=font_info[a].qqqq;
if skip_byte(cur_i)>stop_flag then
begin a:=lig_kern_restart(cur_f)(cur_i);
cur_i:=font_info[a].qqqq;
end;
loop@+ begin @<If instruction |cur_i| is a kern with |cur_c|, attach
the kern after~|q|; or if it is a ligature with |cur_c|, combine
noads |q| and~|p| appropriately; then |return| if the cursor has
moved past a noad, or |goto restart|@>;
if skip_byte(cur_i)>=stop_flag then return;
a:=a+qo(skip_byte(cur_i))+1;
cur_i:=font_info[a].qqqq;
end;
end;
end
else if math_type(nucleus(p))=math_jchar then
begin math_type(nucleus(q)):=math_text_jchar;
fetch(nucleus(p)); a:=cur_c; fetch(nucleus(q));
if char_tag(cur_i)=gk_tag then
begin cur_c:=a; a:=glue_kern_start(cur_f)(cur_i);
{|cur_c|:=qi(|get_jfm_pos|(|math_kcode|(p),
|fam_fnt|(fam(nucleus(p))+|cur_size|)));}
cur_i:=font_info[a].qqqq;
if skip_byte(cur_i)>stop_flag then {huge glue/kern table rearranged}
begin a:=glue_kern_restart(cur_f)(cur_i);
cur_i:=font_info[a].qqqq;
end;
loop@+ begin
if next_char(cur_i)=cur_c then if skip_byte(cur_i)<=stop_flag then
if op_byte(cur_i)<kern_flag then
begin gp:=font_glue[cur_f]; rr:=rem_byte(cur_i);
if gp<>null then begin
while((type(gp)<>rr)and(link(gp)<>null)) do begin gp:=link(gp);
end;
gq:=glue_ptr(gp);
end
else begin gp:=get_node(small_node_size);
font_glue[cur_f]:=gp; gq:=null;
end;
if gq=null then
begin type(gp):=rr; gq:=new_spec(zero_glue); glue_ptr(gp):=gq;
a:=exten_base[cur_f]+qi((qo(rr))*3); width(gq):=font_info[a].sc;
stretch(gq):=font_info[a+1].sc; shrink(gq):=font_info[a+2].sc;
add_glue_ref(gq); link(gp):=get_node(small_node_size);
gp:=link(gp); glue_ptr(gp):=null; link(gp):=null;
end;
p:=new_glue(gq); subtype(p):=jfm_skip+1;
link(p):=link(q); link(q):=p; return;
end
else begin p:=new_kern(char_kern(cur_f)(cur_i));
link(p):=link(q); link(q):=p; return;
end;
if skip_byte(cur_i)>=stop_flag then return;
a:=a+qo(skip_byte(cur_i))+1; {SKIP property}
cur_i:=font_info[a].qqqq;
end;
end;
end;
end;
exit:end;
@z
@x [36.754] l.15452 - pTeX:
math_char, math_text_char:
@y
math_char, math_text_char, math_jchar, math_text_jchar:
@z
@x [36.754] pTeX:
sub_box: p:=info(nucleus(q));
@y
sub_box: p:=info(nucleus(q));
sub_exp_box: p:=shift_sub_exp_box(nucleus(q));
@z
@x [36.755] l.15475 - pTeX: convert math text to KANJI char_node
begin delta:=char_italic(cur_f)(cur_i); p:=new_character(cur_f,qo(cur_c));
if (math_type(nucleus(q))=math_text_char)and(space(cur_f)<>0) then
delta:=0; {no italic correction in mid-word of text font}
if (math_type(subscr(q))=empty)and(delta<>0) then
begin link(p):=new_kern(delta); delta:=0;
@y
begin delta:=char_italic(cur_f)(cur_i); p:=new_character(cur_f,qo(cur_c));
u:=p;
if font_dir[cur_f]<>dir_default then begin
link(u):=get_avail; u:=link(u); info(u):=math_kcode(q);
end;
if ((math_type(nucleus(q))=math_text_char)or
(math_type(nucleus(q))=math_text_jchar))and(space(cur_f)<>0) then
delta:=0; {no italic correction in mid-word of text font}
if (math_type(subscr(q))=empty)and(delta<>0) then begin
link(u):=new_kern(delta); delta:=0;
@z
@x [36.756] l.15505 - pTeX: free box
shift_down:=depth(z)+sub_drop(t);
free_node(z,box_node_size);
end;
@y
shift_down:=depth(z)+sub_drop(t);
delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
free_node(z,box_node_size);
end;
@z
@x [36.757] l.15526 - pTeX: make_scripts:clean_box
begin x:=clean_box(subscr(q),sub_style(cur_style));
@y
begin x:=clean_box(subscr(q),sub_style(cur_style),math_kcode(q));
@z
@x [36.758] l.15538 - pTeX: make_scripts:clean_box
begin x:=clean_box(supscr(q),sup_style(cur_style));
@y
begin x:=clean_box(supscr(q),sup_style(cur_style),math_kcode(q));
@z
@x [36.758] l.15555 - pTeX: make_scripts:clean_box
begin y:=clean_box(subscr(q),sub_style(cur_style));
@y
begin y:=clean_box(subscr(q),sub_style(cur_style),math_kcode(q));
@z
@x [36.760] l.15616 - pTeX: disp_node
othercases confusion("mlist3")
@y
disp_node: begin link(p):=q; p:=q; q:=link(q); link(p):=null; goto done;
end;
othercases confusion("mlist3")
@z
@x [37.???] init_span: pTeX: init inhibit_glue_flag
if mode=-hmode then space_factor:=1000
else begin prev_depth:=ignore_depth; normal_paragraph;
end;
@y
if mode=-hmode then space_factor:=1000
else begin prev_depth:=ignore_depth; normal_paragraph;
end;
inhibit_glue_flag:=false;
@z
@x [37.796] l.16276 - pTeX: call adjust_hlist
begin adjust_tail:=cur_tail; u:=hpack(link(head),natural); w:=width(u);
@y
begin adjust_tail:=cur_tail; adjust_hlist(head,false);
delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
cur_kanji_skip:=space_ptr(head); cur_xkanji_skip:=xspace_ptr(head);
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
u:=hpack(link(head),natural); w:=width(u);
@z
@x [37.???] l.????? - increased max_quarterword
if n>max_quarterword then confusion("256 spans"); {this can happen, but won't}
@^system dependencies@>
@:this can't happen 256 spans}{\quad 256 spans@>
@y
if n>max_quarterword then confusion("too many spans");
{this can happen, but won't}
@^system dependencies@>
@:this can't happen too many spans}{\quad too many spans@>
@z
@x [37.799] l.16331 - fin_row: pTeX: call adjust_hlist
begin p:=hpack(link(head),natural);
@y
begin adjust_hlist(head,false);
delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
cur_kanji_skip:=space_ptr(head); cur_xkanji_skip:=xspace_ptr(head);
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
p:=hpack(link(head),natural);
@z
@x [37.799] l.16331 - fin_row: init inhibit_glue_flag
link(tail):=p; tail:=p; space_factor:=1000;
@y
link(tail):=p; tail:=p; space_factor:=1000;
inhibit_glue_flag:=false;
@z
@x [37.800] l.16353 - pTeX: call adjust_hlist
var @!p,@!q,@!r,@!s,@!u,@!v: pointer; {registers for the list operations}
@y
var @!p,@!q,@!r,@!s,@!u,@!v,@!z: pointer; {registers for the list operations}
@z
@x [37.804] l.16456 - pTeX: call adjust_hlist
p:=hpack(preamble,saved(1),saved(0)); overfull_rule:=rule_save;
@y
z:=new_null_box; link(z):=preamble;
adjust_hlist(z,false);
delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
cur_kanji_skip:=space_ptr(z); cur_xkanji_skip:=xspace_ptr(z);
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
p:=hpack(preamble,saved(1),saved(0)); overfull_rule:=rule_save;
delete_glue_ref(space_ptr(z)); delete_glue_ref(xspace_ptr(z));
free_node(z,box_node_size);
@z
@x [37.807] l.16499 - pTeX: unset box -> BOX
glue_order(q):=glue_order(p); glue_sign(q):=glue_sign(p);
glue_set(q):=glue_set(p); shift_amount(q):=o;
r:=link(list_ptr(q)); s:=link(list_ptr(p));
@y
set_box_dir(q)(direction);
glue_order(q):=glue_order(p); glue_sign(q):=glue_sign(p);
glue_set(q):=glue_set(p); shift_amount(q):=o;
r:=link(list_ptr(q)); s:=link(list_ptr(p));
@z
@x [37.809] l.16541 - pTeX: unset box -> BOX
s:=link(s); link(u):=new_null_box; u:=link(u); t:=t+width(s);
if mode=-vmode then width(u):=width(s)@+else
begin type(u):=vlist_node; height(u):=width(s);
end
@y
s:=link(s); link(u):=new_null_box; u:=link(u); t:=t+width(s);
if mode=-vmode then width(u):=width(s)@+else
begin type(u):=vlist_node; height(u):=width(s);
end;
set_box_dir(u)(direction)
@z
@x [37.810] l.16564 - pTeX: unset box -> BOX
width(r):=w; type(r):=hlist_node;
end
@y
width(r):=w; type(r):=hlist_node;
set_box_dir(r)(direction);
end
@z
@x [37.811] l.16585 - pTeX: unset box -> BOX
height(r):=w; type(r):=vlist_node;
@y
height(r):=w; type(r):=vlist_node;
set_box_dir(r)(direction);
@z
@x [38.816] l.16687 - pTeX: init chain, delete disp_node
link(temp_head):=link(head);
if is_char_node(tail) then tail_append(new_penalty(inf_penalty))
else if type(tail)<>glue_node then tail_append(new_penalty(inf_penalty))
@y
first_use:=true; chain:=false;
delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
cur_kanji_skip:=space_ptr(head); cur_xkanji_skip:=xspace_ptr(head);
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
if not is_char_node(tail)and(type(tail)=disp_node) then
begin free_node(tail,small_node_size); tail:=prev_node; link(tail):=null
end;
link(temp_head):=link(head);
if is_char_node(tail) then tail_append(new_penalty(inf_penalty))
else if type(tail)<>glue_node then tail_append(new_penalty(inf_penalty))
@z
@x [38.828] l.16946 - pTeX: Global variable |chain|
@!cur_p:pointer; {the current breakpoint under consideration}
@y
@!cur_p:pointer; {the current breakpoint under consideration}
@!chain:boolean; {chain current line and next line?}
@z
% chain ¤¬¿¿¤Î¾ì¹ç¡¢¸å¤í¤Ë cur_kanji_skip ¤¬ÁÞÆþ¤µ¤ì¤ë¤Î¤Ç¡¢¤³¤³¤Ç
% break_width ¤«¤é°ú¤¤¤Æ¤ª¤«¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
@x [38.837] l.17125 - pTeX: add kanji_skip width, ita_kern
begin no_break_yet:=false; do_all_six(set_break_width_to_background);
s:=cur_p;
if break_type>unhyphenated then if cur_p<>null then
@<Compute the discretionary |break_width| values@>;
while s<>null do
begin if is_char_node(s) then goto done;
@y
begin no_break_yet:=false; do_all_six(set_break_width_to_background);
s:=cur_p;
if break_type>unhyphenated then if cur_p<>null then
@<Compute the discretionary |break_width| values@>;
while s<>null do
begin if is_char_node(s) then
begin if chain then
begin break_width[1]:=break_width[1]-width(cur_kanji_skip);
break_width[2+stretch_order(cur_kanji_skip)]:=
break_width[2+stretch_order(cur_kanji_skip)]-stretch(cur_kanji_skip);
break_width[6]:=break_width[6]-shrink(cur_kanji_skip);
end;
goto done end;
@z
@x [38.837] l.17135 - pTeX:
kern_node: if subtype(s)<>explicit then goto done
else break_width[1]:=break_width[1]-width(s);
@y
kern_node: if (subtype(s)<>explicit)and(subtype(s)<>ita_kern) then
goto done
else break_width[1]:=break_width[1]-width(s);
@z
@x [38.841] l.17186 - pTeX:
if is_char_node(v) then
begin f:=font(v);
break_width[1]:=break_width[1]-char_width(f)(char_info(f)(character(v)));
end
else case type(v) of
ligature_node: begin f:=font(lig_char(v));@/
break_width[1]:=@|break_width[1]-
char_width(f)(char_info(f)(character(lig_char(v))));
end;
hlist_node,vlist_node,rule_node,kern_node:
break_width[1]:=break_width[1]-width(v);
othercases confusion("disc1")
@:this can't happen disc1}{\quad disc1@>
endcases
@y
if is_char_node(v) then
begin f:=font(v);
break_width[1]:=break_width[1]-char_width(f)(orig_char_info(f)(character(v)));
if font_dir[f]<>dir_default then v:=link(v);
end
else case type(v) of
ligature_node: begin f:=font(lig_char(v));@/
break_width[1]:=@|break_width[1]-
char_width(f)(orig_char_info(f)(character(lig_char(v))));
end;
hlist_node,vlist_node,dir_node,rule_node,kern_node:
break_width[1]:=break_width[1]-width(v);
disp_node: do_nothing;
othercases confusion("disc1")
@:this can't happen disc1}{\quad disc1@>
endcases
@z
@x [38.842] l.17204 - pTeX:
break_width[1]:=@|break_width[1]+char_width(f)(char_info(f)(character(s)));
end
else case type(s) of
ligature_node: begin f:=font(lig_char(s));
break_width[1]:=break_width[1]+
char_width(f)(char_info(f)(character(lig_char(s))));
end;
hlist_node,vlist_node,rule_node,kern_node:
break_width[1]:=break_width[1]+width(s);
@y
break_width[1]:=@|break_width[1]+char_width(f)(orig_char_info(f)(character(s)));
if font_dir[f]<>dir_default then s:=link(s);
end
else case type(s) of
ligature_node: begin f:=font(lig_char(s));
break_width[1]:=break_width[1]+
char_width(f)(orig_char_info(f)(character(lig_char(s))));
end;
hlist_node,vlist_node,dir_node,rule_node,kern_node:
break_width[1]:=break_width[1]+width(s);
disp_node: do_nothing;
@z
@x [38.856] l.17467 - pTeX: print symbolic feasible node
if cur_p=null then print_esc("par")
else if type(cur_p)<>glue_node then
begin if type(cur_p)=penalty_node then print_esc("penalty")
else if type(cur_p)=disc_node then print_esc("discretionary")
@y
if cur_p=null then print_esc("par")
else if (type(cur_p)<>glue_node)and(not is_char_node(cur_p)) then
begin if type(cur_p)=penalty_node then print_esc("penalty")
else if type(cur_p)=disc_node then print_esc("discretionary")
@z
@x [39.862] l.17584 - pTeX: local valiable for line breaking
@!auto_breaking:boolean; {is node |cur_p| outside a formula?}
@!prev_p:pointer; {helps to determine when glue nodes are breakpoints}
@!q,@!r,@!s,@!prev_s:pointer; {miscellaneous nodes of temporary interest}
@!f:internal_font_number; {used when calculating character widths}
@y
@!auto_breaking:boolean; {is node |cur_p| outside a formula?}
@!prev_p:pointer; {helps to determine when glue nodes are breakpoints}
@!q,@!r,@!s,@!prev_s:pointer; {miscellaneous nodes of temporary interest}
@!f,@!post_f:internal_font_number; {used when calculating character widths}
@!post_p:pointer;
@!cc:ASCII_code;
@!first_use:boolean;
@z
@x [39.866] l.17677 - pTeX: dir_node, disp_node, ita_kern
case type(cur_p) of
hlist_node,vlist_node,rule_node: act_width:=act_width+width(cur_p);
@y
case type(cur_p) of
hlist_node,vlist_node,dir_node,rule_node: act_width:=act_width+width(cur_p);
@z
@x [39.866] l.17685 - pTeX:
kern_node: if subtype(cur_p)=explicit then kern_break
else act_width:=act_width+width(cur_p);
@y
kern_node: if (subtype(cur_p)=explicit)or(subtype(cur_p)=ita_kern) then
kern_break
else act_width:=act_width+width(cur_p);
@z
@x [39.866] l.17694 - pTeX:
mark_node,ins_node,adjust_node: do_nothing;
@y
disp_node,mark_node,ins_node,adjust_node: do_nothing;
@z
% ¤³¤³¤Ç¡¢Ï¢Â³¤¹¤ë´Á»ú¥³¡¼¥É´Ö¤Ë cur_kanji_skip ¤òÁÞÆþ¤¹¤ë¡£
% penalty_node ¤ä box_node ¤Ë¤Ï¡¢adjust_hlist ¥ë¡¼¥Á¥ó¤Ë¤è¤Ã¤Æ´û¤Ë¼ÂºÝ¤Î
% glue_node ¤¬ÁÞÆþ¤µ¤ì¤Æ¤¤¤ë¤â¤Î¤È²¾Äꤷ¤Æ¤¤¤ë¡£
% chain ¤Ï¡¢try_break ¤Ç cur_kanji_skip ¤Î¥¢¥¸¥ã¥¹¥È¤Î¤¿¤á¤Ë»È¤ï¤ì¤ë¡£
@x [39.867] l.17708 - pTeX: add kanji char width
@<Advance \(c)|cur_p| to the node following the present string...@>=
begin prev_p:=cur_p;
repeat f:=font(cur_p);
act_width:=act_width+char_width(f)(char_info(f)(character(cur_p)));
cur_p:=link(cur_p);
until not is_char_node(cur_p);
end
@y
@<Advance \(c)|cur_p| to the node following the present string...@>=
begin chain:=false;
if is_char_node(cur_p) then
if font_dir[font(cur_p)]<>dir_default then
begin case type(prev_p) of
hlist_node,vlist_node,dir_node,rule_node,
ligature_node,disc_node,math_node: begin
cur_p:=prev_p; try_break(0,unhyphenated); cur_p:=link(cur_p);
end;
othercases do_nothing;
endcases;
end;
prev_p:=cur_p; post_p:=cur_p; post_f:=font(post_p);
repeat f:=post_f; cc:=character(cur_p);
act_width:=act_width+char_width(f)(orig_char_info(f)(cc));
post_p:=link(cur_p);
if font_dir[f]<>dir_default then
begin prev_p:=cur_p; cur_p:=post_p; post_p:=link(post_p);
if is_char_node(post_p) then
begin post_f:=font(post_p);
if font_dir[post_f]<>dir_default then chain:=true else chain:=false;
try_break(0,unhyphenated);
end
else
begin chain:=false;
case type(post_p) of
hlist_node,vlist_node,dir_node,rule_node,ligature_node,
disc_node,math_node: try_break(0,unhyphenated);
othercases do_nothing;
endcases;
end;
if chain then
begin if first_use then
begin check_shrinkage(cur_kanji_skip);
first_use:=false;
end;
act_width:=act_width+width(cur_kanji_skip);@|
active_width[2+stretch_order(cur_kanji_skip)]:=@|
active_width[2+stretch_order(cur_kanji_skip)]
+stretch(cur_kanji_skip);@/
active_width[6]:=active_width[6]+shrink(cur_kanji_skip);
end;
prev_p:=cur_p;
end
else if is_char_node(post_p) then
begin post_f:=font(post_p); chain:=false;
if font_dir[post_f]<>dir_default then try_break(0,unhyphenated);
end;
cur_p:=post_p;
until not is_char_node(cur_p);
chain:=false;
end
@z
@x [39.868] l.17723 - pTeX: ita_kern
else if (type(prev_p)=kern_node)and(subtype(prev_p)<>explicit) then
try_break(0,unhyphenated);
@y
else if type(prev_p)=kern_node then
if (subtype(prev_p)<>explicit)and(subtype(prev_p)<>ita_kern) then
try_break(0,unhyphenated);
@z
@x [39.871] l.17756 - pTeX: add kanji char width, dir_node width, disp_node
disc_width:=disc_width+char_width(f)(char_info(f)(character(s)));
end
else case type(s) of
ligature_node: begin f:=font(lig_char(s));
disc_width:=disc_width+
char_width(f)(char_info(f)(character(lig_char(s))));
end;
hlist_node,vlist_node,rule_node,kern_node:
disc_width:=disc_width+width(s);
@y
disc_width:=disc_width+char_width(f)(orig_char_info(f)(character(s)));
if font_dir[f]<>dir_default then s:=link(s)
end
else case type(s) of
ligature_node: begin f:=font(lig_char(s));
disc_width:=disc_width+
char_width(f)(orig_char_info(f)(character(lig_char(s))));
end;
hlist_node,vlist_node,dir_node,rule_node,kern_node:
disc_width:=disc_width+width(s);
disp_node: do_nothing;
@z
@x [39.872] l.17772 - pTeX: add kanji char width, dir_node width, disp_node
act_width:=act_width+char_width(f)(char_info(f)(character(s)));
end
else case type(s) of
ligature_node: begin f:=font(lig_char(s));
act_width:=act_width+
char_width(f)(char_info(f)(character(lig_char(s))));
end;
hlist_node,vlist_node,rule_node,kern_node:
act_width:=act_width+width(s);
@y
act_width:=act_width+char_width(f)(orig_char_info(f)(character(s)));
if font_dir[f]<>dir_default then s:=link(s)
end
else case type(s) of
ligature_node: begin f:=font(lig_char(s));
act_width:=act_width+
char_width(f)(orig_char_info(f)(character(lig_char(s))));
end;
hlist_node,vlist_node,dir_node,rule_node,kern_node:
act_width:=act_width+width(s);
disp_node: do_nothing;
@z
@x [39.877] l.17879 - pTeX: last_disp
cur_line:=prev_graf+1;
@y
cur_line:=prev_graf+1; last_disp:=0;
@z
@x [39.879] l.17919 - pTeX: ita_kern
if type(q)=kern_node then if subtype(q)<>explicit then goto done1;
@y
if type(q)=kern_node then
if (subtype(q)<>explicit)and(subtype(q)<>ita_kern) then goto done1;
@z
@x [39.881] l.17950 - pTeX: |q| may be a |char_node|
if q<>null then {|q| cannot be a |char_node|}
if type(q)=glue_node then
begin delete_glue_ref(glue_ptr(q));
glue_ptr(q):=right_skip;
subtype(q):=right_skip_code+1; add_glue_ref(right_skip);
goto done;
end
else begin if type(q)=disc_node then
@<Change discretionary to compulsory and set
|disc_break:=true|@>
@y
if q<>null then {|q| may be a |char_node|}
begin if not is_char_node(q) then
if type(q)=glue_node then
begin delete_glue_ref(glue_ptr(q));
glue_ptr(q):=right_skip;
subtype(q):=right_skip_code+1; add_glue_ref(right_skip);
goto done;
end
else begin if type(q)=disc_node then
@<Change discretionary to compulsory and set
|disc_break:=true|@>
@z
@x [39.881] l.17961 - pTeX: |q| may be a |char_node|
end
@y
end
end
@z
@x [39.887] l.18014 - pTeX: disp_node at begin-of-line
r:=link(q); link(q):=null; q:=link(temp_head); link(temp_head):=r;
@y
r:=link(q); link(q):=null; q:=link(temp_head); link(temp_head):=r;
if last_disp<>0 then begin
r:=get_node(small_node_size);
type(r):=disp_node; disp_dimen(r):=last_disp;
link(r):=q; q:=r; disp_called:=true;
end;
@z
@x [40.896] l.18177 - pTeX: hyphenation
loop@+ begin if is_char_node(s) then
begin c:=qo(character(s)); hf:=font(s);
end
@y
loop@+ begin if is_char_node(s) then
begin hf:=font(s);
if font_dir[hf]<>dir_default then
begin prev_s:=s; s:=link(prev_s); c:=info(s); goto continue;
end else c:=qo(character(s));
end
else if type(s)=disp_node then goto continue
else if (type(s)=penalty_node)and(subtype(s)<>normal) then goto continue
@z
@x [40.899] l.18248 - pTeX: disp_node
whatsit_node,glue_node,penalty_node,ins_node,adjust_node,mark_node:
goto done4;
@y
disp_node: do_nothing;
whatsit_node,glue_node,penalty_node,ins_node,adjust_node,mark_node:
goto done4;
@z
@x [44.968] l.19535 - pTeX: dir_node
hlist_node,vlist_node,rule_node:@<Insert glue for |split_top_skip|
@y
dir_node,
hlist_node,vlist_node,rule_node:@<Insert glue for |split_top_skip|
@z
@x [44.973] l.19626 - pTeX: dir_node
hlist_node,vlist_node,rule_node: begin@t@>@;@/
@y
dir_node,
hlist_node,vlist_node,rule_node: begin@t@>@;@/
@z
@x [44.977] l.19710 - pTeX: free box node
var v:pointer; {the box to be split}
@y
var v:pointer; {the box to be split}
w:pointer; {|dir_node|}
@z
@x [44.977] l.19722 - pTeX: free box node
q:=prune_page_top(q); p:=list_ptr(v); free_node(v,box_node_size);
if q=null then box(n):=null {the |eq_level| of the box stays the same}
else box(n):=vpack(q,natural);
vsplit:=vpackage(p,h,exactly,split_max_depth);
@y
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;
q:=vpackage(p,h,exactly,split_max_depth);
set_box_dir(q)(box_dir(v));
delete_glue_ref(space_ptr(v)); delete_glue_ref(xspace_ptr(v));
free_node(v,box_node_size);
vsplit:=q;
@z
@x [44.978] l.19732 - pTeX: bad box for vsplit
if type(v)<>vlist_node then
begin print_err(""); print_esc("vsplit"); print(" needs a ");
print_esc("vbox");
@:vsplit_}{\.{\\vsplit needs a \\vbox}@>
help2("The box you are trying to split is an \hbox.")@/
("I can't split such a box, so I'll leave it alone.");
error; vsplit:=null; return;
end
@y
if type(v)=dir_node then begin
w:=v; v:=list_ptr(v);
delete_glue_ref(space_ptr(w));
delete_glue_ref(xspace_ptr(w));
free_node(w,box_node_size);
end;
if type(v)<>vlist_node then begin
print_err(""); print_esc("vsplit"); print(" needs a ");
print_esc("vbox");
@:vsplit_}{\.{\\vsplit needs a \\vbox}@>
help2("The box you are trying to split is an \hbox.")@/
("I can't split such a box, so I'll leave it alone.");
error; vsplit:=null; return;
end;
flush_node_list(link(v)); link(v):=null
@z
@x [45.993] l.20053 - pTeX: ensure_vbox
begin p:=box(n);
if p<>null then if type(p)=hlist_node then
begin print_err("Insertions can only be added to a vbox");
@y
begin p:=box(n);
if p<>null then if type(p)=dir_node then
begin p:=list_ptr(p);
delete_glue_ref(space_ptr(box(n)));
delete_glue_ref(xspace_ptr(box(n)));
free_node(box(n),box_node_size);
box(n):=p
end;
if p<>null then if type(p)<>vlist_node then begin
print_err("Insertions can only be added to a vbox");
@z
@x [45.1000] l.20146 - pTeX: dir_node
hlist_node,vlist_node,rule_node: if page_contents<box_there then
@<Initialize the current page, insert the \.{\\topskip} glue
ahead of |p|, and |goto continue|@>
@y
hlist_node,vlist_node,dir_node,rule_node: if page_contents<box_there then
@<Initialize the current page, insert the \.{\\topskip} glue
ahead of |p|, and |goto continue|@>
@z
@x [45.1009] l.20291 - pTeX: ins_dir
if box(n)=null then height(r):=0
else height(r):=height(box(n))+depth(box(n));
@y
if box(n)=null then height(r):=0
else
begin if abs(ins_dir(p))<>abs(box_dir(box(n))) then
begin print_err("Insertions can only be added to a same direction vbox");
@.Insertions can only...@>
help3("Tut tut: You're trying to \insert into a")@/
("\box register that now have a different direction.")@/
("Proceed, and I'll discard its present contents.");
box_error(n)
end
else
height(r):=height(box(n))+depth(box(n));
end;
@z
@x [45.1017] l.20470 - pTeX: page dir
box(255):=vpackage(link(page_head),best_size,exactly,page_max_depth);
@y
box(255):=vpackage(link(page_head),best_size,exactly,page_max_depth);
set_box_dir(box(255))(page_dir);
@z
@x [45.1020] l.20513 - pTeX: check ins_dir
if best_ins_ptr(r)=null then wait:=true
else begin wait:=false; s:=last_ins_ptr(r); link(s):=ins_ptr(p);
@y
if best_ins_ptr(r)=null then wait:=true
else begin wait:=false;
n:=qo(subtype(p));
case abs(box_dir(box(n))) of
any_dir:
if abs(ins_dir(p))<>abs(box_dir(box(n))) then begin
print_err("Insertions can only be added to a same direction vbox");
@.Insertions can only...@>
help3("Tut tut: You're trying to \insert into a")@/
("\box register that now have a different direction.")@/
("Proceed, and I'll discard its present contents.");
box_error(n);
box(n):=new_null_box; last_ins_ptr(r):=box(n)+list_offset;
end;
othercases
set_box_dir(box(n))(abs(ins_dir(p)));
endcases;
s:=last_ins_ptr(r); link(s):=ins_ptr(p);
@z
@x [45.1021] l.20537 - pTeX: free box node, ins_dir
free_node(temp_ptr,box_node_size); wait:=true;
@y
delete_glue_ref(space_ptr(temp_ptr));
delete_glue_ref(xspace_ptr(temp_ptr));
free_node(temp_ptr,box_node_size); wait:=true;
@z
@x [45.1021] l.20543 - pTeX: free box node, ins_dir
free_node(box(n),box_node_size);
box(n):=vpack(temp_ptr,natural);
@y
delete_glue_ref(space_ptr(box(n)));
delete_glue_ref(xspace_ptr(box(n)));
flush_node_list(link(box(n)));
free_node(box(n),box_node_size);
box(n):=vpack(temp_ptr,natural); set_box_dir(box(n))(abs(ins_dir(p)));
@z
@x [46.1030] l.20687 - pTeX:main_control
@d append_normal_space=120 {go here to append a normal space between words}
@y
@d append_normal_space=120 {go here to append a normal space between words}
@d main_loop_j=130 {like |main_loop|, but |cur_chr| holds a KANJI code}
@d skip_loop=141
@d again_2=150
@z
@x [46.1030] l.20691 - pTeX: main_control
procedure main_control; {governs \TeX's activities}
label big_switch,reswitch,main_loop,main_loop_wrapup,
@y
procedure main_control; {governs \TeX's activities}
label big_switch,reswitch,main_loop,main_loop_wrapup,
main_loop_j,main_loop_j+1,main_loop_j+3,skip_loop,again_2,
@z
@x [46.1030] l.20697 - pTeX: main_control
var@!t:integer; {general-purpose temporary variable}
@y
var@!t:integer; {general-purpose temporary variable}
@!cx:KANJI_code; {kanji character}
@!kp:pointer; {kinsoku penalty register}
@!gp,gq:pointer; {temporary registers for list manipulation}
@!disp:scaled; {displacement register}
@!ins_kp:boolean; {whether insert kinsoku penalty}
@z
@x [46.1030] l.20701 - pTeX: main_control
case abs(mode)+cur_cmd of
hmode+letter,hmode+other_char,hmode+char_given: goto main_loop;
hmode+char_num: begin scan_char_num; cur_chr:=cur_val; goto main_loop;@+end;
hmode+no_boundary: begin get_x_token;
if (cur_cmd=letter)or(cur_cmd=other_char)or(cur_cmd=char_given)or
(cur_cmd=char_num) then cancel_boundary:=true;
goto reswitch;
end;
@y
ins_kp:=false;
case abs(mode)+cur_cmd of
hmode+letter,hmode+other_char: goto main_loop;
hmode+kanji,hmode+kana,hmode+other_kchar: goto main_loop_j;
hmode+char_given:
if is_char_ascii(cur_chr) then goto main_loop else goto main_loop_j;
hmode+char_num: begin scan_char_num; cur_chr:=cur_val;
if is_char_ascii(cur_chr) then goto main_loop else goto main_loop_j;
end;
hmode+no_boundary: begin get_x_token;
if (cur_cmd=letter)or(cur_cmd=other_char)or
(cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar)or
(cur_cmd=char_given)or(cur_cmd=char_num) then cancel_boundary:=true;
goto reswitch;
end;
@z
@x [46.1030] l.20715 - pTeX: main_control
main_loop:@<Append character |cur_chr| and the following characters (if~any)
to the current hlist in the current font; |goto reswitch| when
a non-character has been fetched@>;
@y
main_loop_j:@<Append KANJI-character |cur_chr|
to the current hlist in the current font; |goto reswitch| when
a non-character has been fetched@>;
main_loop: inhibit_glue_flag:=false;
@<Append character |cur_chr| and the following characters (if~any)
to the current hlist in the current font; |goto reswitch| when
a non-character has been fetched@>;
@z
@x [46.1034] l.20788 - pTeX: disp_node
@<Append character |cur_chr|...@>=
if ((head=tail) and (mode>0)) then begin
if (insert_src_special_auto) then append_src_special;
end;
adjust_space_factor;@/
@y
@<Append character |cur_chr|...@>=
if ((head=tail) and (mode>0)) then begin
if (insert_src_special_auto) then append_src_special;
end;
adjust_space_factor;@/
if direction=dir_tate then disp:=t_baseline_shift else disp:=y_baseline_shift;
@<Append |disp_node| at begin of displace area@>;
@z
%@x [46.1035] l.20850 - pTeX: kinsoku penalty
%@<Make a ligature node, if |ligature_present|;...@>=
%wrapup(rt_hit)
%@y
%@<Make a ligature node, if |ligature_present|;...@>=
%wrapup(rt_hit);
%if ins_kp=true then
% begin cx:=KANJI(cur_l); @<Insert kinsoku penalty@>;
% ins_kp:=false;
% end
%@z
@x [46.1036] l.20854 - pTeX: disp_node
if lig_stack=null then goto reswitch;
@y
if lig_stack=null then
begin @<Append |disp_node| at end of displace area@>;
goto reswitch;
end;
@z
@x [46.1037] l.20886 - pTeX: Look ahead for another character
@<Look ahead for another character...@>=
get_next; {set only |cur_cmd| and |cur_chr|, for speed}
if cur_cmd=letter then goto main_loop_lookahead+1;
if cur_cmd=other_char then goto main_loop_lookahead+1;
if cur_cmd=char_given then goto main_loop_lookahead+1;
x_token; {now expand and set |cur_cmd|, |cur_chr|, |cur_tok|}
if cur_cmd=letter then goto main_loop_lookahead+1;
if cur_cmd=other_char then goto main_loop_lookahead+1;
if cur_cmd=char_given then goto main_loop_lookahead+1;
if cur_cmd=char_num then
begin scan_char_num; cur_chr:=cur_val; goto main_loop_lookahead+1;
end;
if cur_cmd=no_boundary then bchar:=non_char;
cur_r:=bchar; lig_stack:=null; goto main_lig_loop;
main_loop_lookahead+1: adjust_space_factor;
fast_get_avail(lig_stack); font(lig_stack):=main_f;
cur_r:=qi(cur_chr); character(lig_stack):=cur_r;
if cur_r=false_bchar then cur_r:=non_char {this prevents spurious ligatures}
@y
@<Look ahead for another character...@>=
get_next; {set only |cur_cmd| and |cur_chr|, for speed}
if cur_cmd=letter then goto main_loop_lookahead+1;
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
@<goto |main_lig_loop|@>;
if cur_cmd=other_char then goto main_loop_lookahead+1;
if cur_cmd=char_given then
begin if is_char_ascii(cur_chr) then goto main_loop_lookahead+1
else @<goto |main_lig_loop|@>;
end;
x_token; {now expand and set |cur_cmd|, |cur_chr|, |cur_tok|}
if cur_cmd=letter then goto main_loop_lookahead+1;
if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
@<goto |main_lig_loop|@>;
if cur_cmd=other_char then goto main_loop_lookahead+1;
if cur_cmd=char_given then
begin if is_char_ascii(cur_chr) then goto main_loop_lookahead+1
else @<goto |main_lig_loop|@>;
end;
if cur_cmd=char_num then
begin scan_char_num; cur_chr:=cur_val;
if is_char_ascii(cur_chr) then goto main_loop_lookahead+1
else @<goto |main_lig_loop|@>;
end;
if cur_cmd=inhibit_glue then
begin inhibit_glue_flag:=true; goto main_loop_lookahead;
end;
if cur_cmd=no_boundary then bchar:=non_char;
cur_r:=bchar; lig_stack:=null; goto main_lig_loop;
main_loop_lookahead+1: adjust_space_factor;
inhibit_glue_flag:=false;
fast_get_avail(lig_stack); font(lig_stack):=main_f;
cur_r:=qi(cur_chr); character(lig_stack):=cur_r;
if cur_r=false_bchar then cur_r:=non_char {this prevents spurious ligatures}
@ @<goto |main_lig_loop|@>=
begin bchar:=non_char; cur_r:=bchar; lig_stack:=null;
if ligature_present then pack_lig(rt_hit);
if ins_kp=true then
begin cx:=cur_l; @<Insert kinsoku penalty@>;
end;
ins_kp:=false;
goto main_loop_j;
end
@z
@x [46.1041] l.20999 - pTeX: disp_node
link(tail):=temp_ptr; tail:=temp_ptr;
@y
if not is_char_node(tail)and(type(tail)=disp_node) then
begin link(prev_node):=temp_ptr; link(temp_ptr):=tail; prev_node:=temp_ptr;
end
else begin link(tail):=temp_ptr; tail:=temp_ptr;
end;
@z
@x [46.1043] l.21029 - pTeX: disp_node
link(tail):=q; tail:=q;
@y
if not is_char_node(tail)and(type(tail)=disp_node) then
begin link(prev_node):=q; link(q):=tail; prev_node:=q;
end
else begin link(tail):=q; tail:=q;
end
@z
@x [47.????] pTeX: reset inhibit_glue_flag at rule_node
vmode+hrule,hmode+vrule,mmode+vrule: begin tail_append(scan_rule_spec);
@y
vmode+hrule,hmode+vrule,mmode+vrule: begin tail_append(scan_rule_spec);
inhibit_glue_flag := false;
@z
@x [47.1060] pTeX: append_glue, inhibit_glue_flag
end; {now |cur_val| points to the glue specification}
tail_append(new_glue(cur_val));
if s>=skip_code then
@y
end; {now |cur_val| points to the glue specification}
tail_append(new_glue(cur_val));
inhibit_glue_flag := false;
if s>=skip_code then
@z
@x [47.1061] l.21277 - pTeX: append kern
begin s:=cur_chr; scan_dimen(s=mu_glue,false,false);
tail_append(new_kern(cur_val)); subtype(tail):=s;
end;
@y
begin s:=cur_chr; scan_dimen(s=mu_glue,false,false);
inhibit_glue_flag := false;
if not is_char_node(tail)and(type(tail)=disp_node) then
begin prev_append(new_kern(cur_val)); subtype(prev_node):=s;
end
else
begin tail_append(new_kern(cur_val)); subtype(tail):=s;
end;
end;
@z
@x [47.1068] l.21377 - pTeX:
var p,@!q:pointer; {for short-term use}
@y
var p,@!q:pointer; {for short-term use}
@!r:pointer; {temporary}
@z
@x [47.1071] l.21485 - pTeX: \tate, \yoko, \dtou
primitive("hbox",make_box,vtop_code+hmode);@/
@!@:hbox_}{\.{\\hbox} primitive@>
@y
primitive("hbox",make_box,vtop_code+hmode);@/
@!@:hbox_}{\.{\\hbox} primitive@>
primitive("tate",chg_dir,dir_tate);@/
@!@:tate_}{\.{\\tate} primitive@>
primitive("yoko",chg_dir,dir_yoko);@/
@!@:yoko_}{\.{\\yoko} primitive@>
primitive("dtou",chg_dir,dir_dtou);@/
@!@:dtou_}{\.{\\dtou} primitive@>
@z
@x [47.1072] l.21506 - pTeX: \tate, \yoko, \dtou
othercases print_esc("hbox")
endcases;
leader_ship: if chr_code=a_leaders then print_esc("leaders")
@y
othercases print_esc("hbox")
endcases;
chg_dir:
case chr_code of
dir_yoko: print_esc("yoko");
dir_tate: print_esc("tate");
dir_dtou: print_esc("dtou");
endcases;
leader_ship: if chr_code=a_leaders then print_esc("leaders")
@z
@x [47.1073] l.21523 - pTeX: \tate, \yoko
any_mode(make_box): begin_box(0);
@y
any_mode(make_box): begin_box(0);
any_mode(chg_dir):
begin if cur_group<>align_group then
if mode=hmode then
begin print_err("Improper `"); print_cmd_chr(cur_cmd,cur_chr);
print("'");
help2("You cannot change the direction in unrestricted")
("horizontal mode."); error;
end
else if abs(mode)=mmode then
begin print_err("Improper `"); print_cmd_chr(cur_cmd,cur_chr);
print("'");
help1("You cannot change the direction in math mode."); error;
end
else if nest_ptr=0 then change_page_direction(cur_chr)
else if head=tail then direction:=cur_chr
else begin print_err("Use `"); print_cmd_chr(cur_cmd,cur_chr);
print("' at top of list");
help2("Direction change command is available only while")
("current list is null."); error;
end
else begin print_err("You can't use `"); print_cmd_chr(cur_cmd,cur_chr);
print("' in an align");
help2("To change direction in an align,")
("you shold use \hbox or \vbox with \tate or \yoko."); error;
end
end;
@z
@x [47.1075] l.21538 - pTeX: box_end
var p:pointer; {|ord_noad| for new box in math mode}
@y
var p:pointer; {|ord_noad| for new box in math mode}
q:pointer;
@z
@x [47.1076] l.21553 - pTeX: box_dir adjust
begin shift_amount(cur_box):=box_context;
@y
begin p:=link(cur_box); link(cur_box):=null;
while p<>null do begin
q:=p; p:=link(p);
if abs(box_dir(q))=abs(direction) then
begin list_ptr(q):=cur_box; cur_box:=q; link(cur_box):=null;
end
else begin
delete_glue_ref(space_ptr(q));
delete_glue_ref(xspace_ptr(q));
free_node(q,box_node_size);
end;
end;
if abs(box_dir(cur_box))<>abs(direction) then
cur_box:=new_dir_node(cur_box,abs(direction));
shift_amount(cur_box):=box_context;
@z
@x [47.1076] pTeX: sub_exp_box
else begin if abs(mode)=hmode then space_factor:=1000
else begin p:=new_noad;
math_type(nucleus(p)):=sub_box;
@y
else begin if abs(mode)=hmode then
begin space_factor:=1000; inhibit_glue_flag:=false; end
else begin p:=new_noad;
math_type(nucleus(p)):=sub_exp_box;
@z
@x [47.1078] l.21585 - pTeX: box_dir adjust
begin append_glue; subtype(tail):=box_context-(leader_flag-a_leaders);
leader_ptr(tail):=cur_box;
end
@y
begin append_glue; subtype(tail):=box_context-(leader_flag-a_leaders);
if type(cur_box)<=dir_node then
begin p:=link(cur_box); link(cur_box):=null;
while p<>null do
begin q:=p; p:=link(p);
if abs(box_dir(q))=abs(direction) then
begin list_ptr(q):=cur_box; cur_box:=q; link(cur_box):=null;
end
else begin
delete_glue_ref(space_ptr(q));
delete_glue_ref(xspace_ptr(q));
free_node(q,box_node_size);
end;
end;
if abs(box_dir(cur_box))<>abs(direction) then
cur_box:=new_dir_node(cur_box,abs(direction));
end;
leader_ptr(tail):=cur_box;
end
@z
@x [47.1079] l.20920 begin_box - pTeX: disp_node, adjust direction
@!m:quarterword; {the length of a replacement list}
@y
@!r:pointer; {running behind |p|}
@!fd:boolean; {a final |disp_node| pair?}
@!disp,@!pdisp:scaled; {displacement}
@!a_dir:eight_bits; {adjust direction}
@!tx:pointer; {effective tail node}
@!m:quarterword; {the length of a replacement list}
@z
@x [47.1080] l.20937 - pTeX: disp_node, check head=tail
@ Note that the condition |not is_char_node(tail)| implies that |head<>tail|,
since |head| is a one-word node.
@y
@ Note that in \TeX\ the condition |not is_char_node(tail)| implies that
|head<>tail|, since |head| is a one-word node; this is not so for \pTeX.
@z
@x [47.1080] l.20940 - pTeX: disp_node
@<If the current list ends with a box node, delete it...@>=
@y
@d check_effective_tail_pTeX(#)==
tx:=tail;
if not is_char_node(tx) then
if type(tx)=disp_node then
begin tx:=prev_node;
if not is_char_node(tx) then
if type(tx)=disp_node then #; {|disp_node| from a discretionary}
end
@#
@d fetch_effective_tail_pTeX(#)== {extract |tx|, merge |disp_node| pair}
q:=head; p:=null; disp:=0; pdisp:=0;
repeat r:=p; p:=q; fd:=false;
if not is_char_node(q) then
if type(q)=disc_node then
begin for m:=1 to replace_count(q) do p:=link(p);
if p=tx then #;
end
else if type(q)=disp_node then
begin pdisp:=disp; disp:=disp_dimen(q); fd:=true;@+end;
q:=link(p);
until q=tx; {found |r|$\to$|p|$\to$|q=tx|}
q:=link(tx); link(p):=q; link(tx):=null;
if q=null then tail:=p
else if fd then {|r|$\to$|p=disp_node|$\to$|q=disp_node|}
begin prev_node:=r; prev_disp:=pdisp; link(p):=null; tail:=p;
disp_dimen(p):=disp_dimen(q); free_node(q,small_node_size);
end
else prev_node:=p
@#
@d check_effective_tail==check_effective_tail_pTeX
@d fetch_effective_tail==fetch_effective_tail_pTeX
@<If the current list ends with a box node, delete it...@>=
@z
@x [47.1080] l.20950 - pTeX: disp_node, check head=tail
else begin if not is_char_node(tail) then
if (type(tail)=hlist_node)or(type(tail)=vlist_node) then
@<Remove the last box, unless it's part of a discretionary@>;
end;
@y
else begin check_effective_tail(goto done);
if not is_char_node(tx)and(head<>tx) then
if (type(tx)=hlist_node)or(type(tx)=vlist_node)
or(type(tx)=dir_node) then
@<Remove the last box, unless it's part of a discretionary@>;
done:end;
@z
@x [47.1081] l.20957 - pTeX: disp_node
begin q:=head;
repeat p:=q;
if not is_char_node(q) then if type(q)=disc_node then
begin for m:=1 to replace_count(q) do p:=link(p);
if p=tail then goto done;
end;
q:=link(p);
until q=tail;
cur_box:=tail; shift_amount(cur_box):=0;
tail:=p; link(p):=null;
done:end
@y
begin fetch_effective_tail(goto done);
cur_box:=tx; shift_amount(cur_box):=0;
if type(cur_box)=dir_node then
begin link(list_ptr(cur_box)):=cur_box;
cur_box:=list_ptr(cur_box);
list_ptr(link(cur_box)):=null;
end
else
if box_dir(cur_box)=dir_default then set_box_dir(cur_box)(direction);
end
@z
@x [47.1083] l.20989 - pTeX: adjust_dir
if k=hmode then
if (box_context<box_flag)and(abs(mode)=vmode) then
scan_spec(adjusted_hbox_group,true)
else scan_spec(hbox_group,true)
else begin if k=vmode then scan_spec(vbox_group,true)
else begin scan_spec(vtop_group,true); k:=vmode;
end;
normal_paragraph;
end;
push_nest; mode:=-k;
@y
a_dir:=adjust_dir;
if k=hmode then
if (box_context<box_flag)and(abs(mode)=vmode) then
begin a_dir:=abs(direction); scan_spec(adjusted_hbox_group,true);
end
else scan_spec(hbox_group,true)
else begin if k=vmode then scan_spec(vbox_group,true)
else begin scan_spec(vtop_group,true); k:=vmode;
end;
normal_paragraph;
end;
push_nest; mode:=-k; adjust_dir:=a_dir;
@z
@x [47.1083] reset inhibit_glue_flag
else begin space_factor:=1000;
@y
else begin space_factor:=1000; inhibit_glue_flag:=false;
@z
@x [47.1085] l.21031 - pTeX: end of box, call adjust_hlist
hbox_group: package(0);
adjusted_hbox_group: begin adjust_tail:=adjust_head; package(0);
end;
@y
hbox_group: begin adjust_hlist(head,false); package(0);
end;
adjusted_hbox_group: begin adjust_hlist(head,false);
adjust_tail:=adjust_head; package(0);
end;
@z
@x [47.1086] l.21044 - pTeX: set cur_kanji_skip, cur_xkanji_skip
begin d:=box_max_depth; unsave; save_ptr:=save_ptr-3;
if mode=-hmode then cur_box:=hpack(link(head),saved(2),saved(1))
else begin cur_box:=vpackage(link(head),saved(2),saved(1),d);
if c=vtop_code then @<Readjust the height and depth of |cur_box|,
for \.{\\vtop}@>;
end;
pop_nest; box_end(saved(0));
end;
@y
begin d:=box_max_depth;
delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
if auto_spacing>0 then cur_kanji_skip:=kanji_skip
else cur_kanji_skip:=zero_glue;
if auto_xspacing>0 then cur_xkanji_skip:=xkanji_skip
else cur_xkanji_skip:=zero_glue;
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
unsave; save_ptr:=save_ptr-3;
if mode=-hmode then begin
cur_box:=hpack(link(head),saved(2),saved(1));
set_box_dir(cur_box)(direction); pop_nest;
end else begin
cur_box:=vpackage(link(head),saved(2),saved(1),d);
set_box_dir(cur_box)(direction); pop_nest;
if c=vtop_code then
@<Readjust the height and depth of |cur_box|, for \.{\\vtop}@>;
end;
box_end(saved(0));
end;
@z
@x [47.1090] l.21079 - pTeX: apend vmode case
vmode+letter,vmode+other_char,vmode+char_num,vmode+char_given,
vmode+math_shift,vmode+un_hbox,vmode+vrule,
vmode+accent,vmode+discretionary,vmode+hskip,vmode+valign,
vmode+ex_space,vmode+no_boundary:@t@>@;@/
begin back_input; new_graf(true);
end;
@y
vmode+letter,vmode+other_char,vmode+char_num,vmode+char_given,
vmode+math_shift,vmode+un_hbox,vmode+vrule,
vmode+accent,vmode+discretionary,vmode+hskip,vmode+valign,
vmode+kanji,vmode+kana,vmode+other_kchar,
vmode+ex_space,vmode+no_boundary:@t@>@;@/
begin back_input; new_graf(true);
end;
@z
@x [47.1091] l.21096 - pTeX: new_graf, adjust direction
push_nest; mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
@y
inhibit_glue_flag := false;
push_nest; adjust_dir:=direction;
mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
@z
@x [47.???] indent_in_hmode: reset inhibit_glue_flag
if abs(mode)=hmode then space_factor:=1000
@y
if abs(mode)=hmode then
begin space_factor:=1000; inhibit_glue_flag:=false; end
@z
@x [47.1096] l.21155 - pTeX: end_graf, call adjust_hlist
begin if head=tail then pop_nest {null paragraphs are ignored}
else line_break(widow_penalty);
@y
begin if (link(head)=tail)and(not is_char_node(tail)and(type(tail)=disp_node)) then
begin free_node(tail,small_node_size); tail:=head; link(head):=null; end;
{ |disp_node|-only paragraphs are ignored }
if head=tail then pop_nest {null paragraphs are ignored}
else begin adjust_hlist(head,true); line_break(widow_penalty)
end;
@z
@x [47.1099] l.21184 begin_insert_or_adjust - pTeX: insert and adjust
new_save_level(insert_group); scan_left_brace; normal_paragraph;
push_nest; mode:=-vmode; prev_depth:=ignore_depth;
@y
inhibit_glue_flag:=false;
new_save_level(insert_group); scan_left_brace; normal_paragraph;
push_nest; mode:=-vmode; direction:=adjust_dir; prev_depth:=ignore_depth;
@z
@x [47.1100] l.21189 - pTeX: free box node, ins_dir
{now |saved(0)| is the insertion number, or 255 for |vadjust|}
p:=vpack(link(head),natural); pop_nest;
if saved(0)<255 then
begin tail_append(get_node(ins_node_size));
type(tail):=ins_node; subtype(tail):=qi(saved(0));
height(tail):=height(p)+depth(p); ins_ptr(tail):=list_ptr(p);
split_top_ptr(tail):=q; depth(tail):=d; float_cost(tail):=f;
end
else begin tail_append(get_node(small_node_size));
type(tail):=adjust_node;@/
subtype(tail):=0; {the |subtype| is not used}
adjust_ptr(tail):=list_ptr(p); delete_glue_ref(q);
end;
free_node(p,box_node_size);
if nest_ptr=0 then build_page;
end;
@y
{now |saved(0)| is the insertion number, or 255 for |vadjust|}
p:=vpack(link(head),natural); set_box_dir(p)(direction); pop_nest;
if saved(0)<255 then
begin r:=get_node(ins_node_size);
type(r):=ins_node; subtype(r):=qi(saved(0));
height(r):=height(p)+depth(p); ins_ptr(r):=list_ptr(p);
split_top_ptr(r):=q; depth(r):=d; float_cost(r):=f;
set_ins_dir(r)(box_dir(p));
if not is_char_node(tail)and(type(tail)=disp_node) then
prev_append(r)
else tail_append(r);
end
else begin
if abs(box_dir(p))<>abs(adjust_dir) then
begin print_err("Direction Incompatible");
help1("\vadjust's argument and outer vlist must have same direction.");
error; flush_node_list(list_ptr(p));
end
else begin
r:=get_node(small_node_size); type(r):=adjust_node;@/
subtype(r):=0; {the |subtype| is not used}
adjust_ptr(r):=list_ptr(p); delete_glue_ref(q);
if not is_char_node(tail)and(type(tail)=disp_node) then
prev_append(r)
else tail_append(r);
end;
end;
delete_glue_ref(space_ptr(p));
delete_glue_ref(xspace_ptr(p));
free_node(p,box_node_size);
if nest_ptr=0 then build_page;
end;
@z
@x [47.1101] l.21214 make_mark - pTeX: mark_node, prev_append
mark_ptr(p):=def_ref; link(tail):=p; tail:=p;
@y
inhibit_glue_flag:=false;
mark_ptr(p):=def_ref;
if not is_char_node(tail)and(type(tail)=disp_node) then
prev_append(p)
else tail_append(p);
@z
@x [47.1103] l.21224 - pTeX: penalty, prev_append
procedure append_penalty;
begin scan_int; tail_append(new_penalty(cur_val));
if mode=vmode then build_page;
end;
@y
procedure append_penalty;
begin scan_int;
inhibit_glue_flag:=false;
if not is_char_node(tail)and(type(tail)=disp_node) then
prev_append(new_penalty(cur_val))
else tail_append(new_penalty(cur_val));
if mode=vmode then build_page;
end;
@z
@x [47.1105] l.21246 - pTeX: delete_last: disp_node
@!m:quarterword; {the length of a replacement list}
@y
@!r:pointer; {running behind |p|}
@!fd:boolean; {a final |disp_node| pair?}
@!disp,@!pdisp:scaled; {displacement}
@!tx:pointer; {effective tail node}
@!m:quarterword; {the length of a replacement list}
@z
@x [47.1105] l.21250 - pTeX: delete_last: disp_node
else begin if not is_char_node(tail) then if type(tail)=cur_chr then
begin q:=head;
repeat p:=q;
if not is_char_node(q) then if type(q)=disc_node then
begin for m:=1 to replace_count(q) do p:=link(p);
if p=tail then return;
end;
q:=link(p);
until q=tail;
link(p):=null; flush_node_list(tail); tail:=p;
@y
else begin check_effective_tail(return);
if not is_char_node(tx) then if type(tx)=cur_chr then
begin fetch_effective_tail(return);
flush_node_list(tx);
@z
@x [47.1110] l.21310 -pTeX: free box node, delete kanji_skip
var p:pointer; {the box}
@!c:box_code..copy_code; {should we copy?}
@y
var p:pointer; {the box}
@!c:box_code..copy_code; {should we copy?}
@!disp:scaled; {displacement}
@z
@x [47.1110] l.21314 unpackage - pTeX: free box node, delete kanji_skip
if (abs(mode)=mmode)or((abs(mode)=vmode)and(type(p)<>vlist_node))or@|
((abs(mode)=hmode)and(type(p)<>hlist_node)) then
begin print_err("Incompatible list can't be unboxed");
@.Incompatible list...@>
help3("Sorry, Pandora. (You sneaky devil.)")@/
("I refuse to unbox an \hbox in vertical mode or vice versa.")@/
("And I can't open any boxes in math mode.");@/
error; return;
end;
if c=copy_code then link(tail):=copy_node_list(list_ptr(p))
else begin link(tail):=list_ptr(p); box(cur_val):=null;
free_node(p,box_node_size);
end;
@y
if type(p)=dir_node then p:=list_ptr(p);
if (abs(mode)=mmode)or((abs(mode)=vmode)and(type(p)<>vlist_node))or@|
((abs(mode)=hmode)and(type(p)<>hlist_node)) then
begin print_err("Incompatible list can't be unboxed");
@.Incompatible list...@>
help3("Sorry, Pandora. (You sneaky devil.)")@/
("I refuse to unbox an \hbox in vertical mode or vice versa.")@/
("And I can't open any boxes in math mode.");@/
error; return;
end;
case abs(box_dir(p)) of
any_dir:
if abs(direction)<>abs(box_dir(p)) then begin
print_err("Incompatible direction list can't be unboxed");
help2("Sorry, Pandora. (You sneaky devil.)")@/
("I refuse to unbox a box in different direction.");@/
error; return;
end;
endcases;
disp:=0;
if c=copy_code then link(tail):=copy_node_list(list_ptr(p))
else
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);
end;
flush_node_list(link(p));
link(tail):=list_ptr(p); box(cur_val):=null;
delete_glue_ref(space_ptr(p));
delete_glue_ref(xspace_ptr(p));
free_node(p,box_node_size);
end;
@z
@x [47.1110] l.22014 - pTeX: free box node, delete kanji_skip
while link(tail)<>null do tail:=link(tail);
@y
while link(tail)<>null do
{reset |inhibit_glue_flag| when a node other than |disp_node| is found;
|disp_node| is always inserted according to tex-jp-build issue 40}
begin p:=tail; tail:=link(tail);
if is_char_node(tail) then
inhibit_glue_flag:=false
else
case type(tail) of
glue_node : begin
inhibit_glue_flag:=false;
if (subtype(tail)=kanji_skip_code+1)
or(subtype(tail)=xkanji_skip_code+1) then
begin link(p):=link(tail);
delete_glue_ref(glue_ptr(tail));
free_node(tail,small_node_size); tail:=p;
end;
end;
penalty_node : begin
inhibit_glue_flag:=false;
if subtype(tail)=widow_pena then
begin link(p):=link(tail); free_node(tail,small_node_size);
tail:=p;
end;
end;
disp_node :
begin prev_disp:=disp; disp:=disp_dimen(tail); prev_node:=p;
end;
othercases inhibit_glue_flag:=false;
endcases;
end;
@z
@x [47.1113] l.22028 - pTeX: italic correction, ita_kern
procedure append_italic_correction;
label exit;
var p:pointer; {|char_node| at the tail of the current list}
@!f:internal_font_number; {the font in the |char_node|}
begin if tail<>head then
begin if is_char_node(tail) then p:=tail
else if type(tail)=ligature_node then p:=lig_char(tail)
else return;
f:=font(p);
tail_append(new_kern(char_italic(f)(char_info(f)(character(p)))));
subtype(tail):=explicit;
end;
@y
procedure append_italic_correction;
label exit;
var p:pointer; {|char_node| at the tail of the current list}
@!f:internal_font_number; {the font in the |char_node|}
@!d:pointer; {|disp_node|}
begin if tail<>head then
begin
if not is_char_node(tail)and(type(tail)=disp_node) then
begin d:=tail; tail:=prev_node;
end
else d:=null;
if (last_jchr<>null)and(link(last_jchr)=tail)and(is_char_node(tail)) then
p:=last_jchr
else if is_char_node(tail) then p:=tail
else if type(tail)=ligature_node then p:=lig_char(tail)
else return;
f:=font(p);
tail_append(new_kern(char_italic(f)(char_info(f)(character(p)))));
subtype(tail):=ita_kern;
if d<>null then
begin prev_node:=tail; tail_append(d);
end;
end;
@z
@x [47.????] pTeX: reset inhibit_glue_flag at disc_node
procedure append_discretionary;
var c:integer; {hyphen character}
begin tail_append(new_disc);
@y
procedure append_discretionary;
var c:integer; {hyphen character}
begin tail_append(new_disc); inhibit_glue_flag:=false;
@z
@x pTeX: direction check in \discretionary
@!n:integer; {length of discretionary list}
@y
@!n:integer; {length of discretionary list}
@!d:integer; {direction}
@z
@x pTeX: direction check in \discretionary
p:=link(head); pop_nest;
case saved(-1) of
0:pre_break(tail):=p;
1:post_break(tail):=p;
@y
p:=link(head); d:=abs(direction); pop_nest;
case saved(-1) of
0:if abs(direction)=d then pre_break(tail):=p
else begin
print_err("Direction Incompatible");
help2("\discretionary's argument and outer hlist must have same direction.")@/
("I delete your first part."); error; pre_break(tail):=null; flush_node_list(p);
end;
1:if abs(direction)=d then post_break(tail):=p
else begin
print_err("Direction Incompatible");
help2("\discretionary's argument and outer hlist must have same direction.")@/
("I delete your second part."); error; post_break(tail):=null; flush_node_list(p);
end;
@z
@x pTeX: reset inhibit_glue_flag
push_nest; mode:=-hmode; space_factor:=1000;
@y
push_nest; mode:=-hmode; space_factor:=1000; inhibit_glue_flag:=false;
@z
@x pTeX: direction check in \discretionary
else link(tail):=p;
if n<=max_quarterword then replace_count(tail):=n
@y
else if (n>0)and(abs(direction)<>d) then
begin print_err("Direction Incompatible");
help2("\discretionary's argument and outer hlist must have same direction.")@/
("I delete your third part."); flush_node_list(p); n:=0; error;
end
else link(tail):=p;
if n<=max_quarterword then replace_count(tail):=n
@z
@x [47.1120] l.22119 - pTeX: discretionary with disp_node
decr(save_ptr); return;
@y
decr(save_ptr);
prev_node:=tail; tail_append(get_node(small_node_size));
type(tail):=disp_node; disp_dimen(tail):=0; prev_disp:=0;
return;
@z
@x [47.1121] l.22127 - pTeX: discretionary with disp_node
begin if not is_char_node(p) then if type(p)>rule_node then
if type(p)<>kern_node then if type(p)<>ligature_node then
begin print_err("Improper discretionary list");
@y
begin if not is_char_node(p) then
if (type(p)>rule_node)and(type(p)<>kern_node)and
(type(p)<>ligature_node)and(type(p)<>disp_node) then
if (type(p)=penalty_node)and(subtype(p)<>normal) then
begin link(q):=link(p); free_node(p,small_node_size); p:=q;
end
else
begin print_err("Improper discretionary list");
@z
@x [47.1123] l.22160 - pTeX: make_accent, Kanji, insert disp_node
var s,@!t: real; {amount of slant}
@y
var s,@!t: real; {amount of slant}
@!disp:scaled; {displacement}
@!cx:KANJI_code; {temporary register for KANJI}
@z
@x [47.1123] l.22165 - pTeX: make_accent, Kanji, insert disp_node
begin scan_char_num; f:=cur_font; p:=new_character(f,cur_val);
@y
begin scan_char_num;
if not is_char_ascii(cur_val) then
begin KANJI(cx):=cur_val;
if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
p:=new_character(f,get_jfm_pos(KANJI(cx),f));
if p<>null then
begin
link(p):=get_avail; info(link(p)):=KANJI(cx);
end;
end
else begin f:=cur_font; p:=new_character(f,cur_val);
end;
@z
@x [47.1123] l.22175 - pTeX: make_accent, Kanji, insert disp_node
link(tail):=p; tail:=p; space_factor:=1000;
@y
link(tail):=p;
if link(p)<>null then tail:=link(p) else tail:=p;
@<Append |disp_node| at end of displace area@>;
space_factor:=1000; inhibit_glue_flag:=false;
@z
@x [47.1124] l.22180 - pTeX: make_accent Kanji, insert disp_node
q:=null; f:=cur_font;
if (cur_cmd=letter)or(cur_cmd=other_char)or(cur_cmd=char_given) then
q:=new_character(f,cur_chr)
else if cur_cmd=char_num then
begin scan_char_num; q:=new_character(f,cur_val);
end
else back_input
@y
q:=null; f:=cur_font; KANJI(cx):=empty;
if (cur_cmd=letter)or(cur_cmd=other_char) then
q:=new_character(f,cur_chr)
else if (cur_cmd=kanji)or(cur_cmd=kana)or(cur_cmd=other_kchar) then
begin if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
cx:=cur_chr;
end
else if cur_cmd=char_given then
if is_char_ascii(cur_chr) then q:=new_character(f,cur_chr)
else begin
if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
KANJI(cx):=cur_chr
end
else if cur_cmd=char_num then
begin scan_char_num;
if is_char_ascii(cur_val) then q:=new_character(f,cur_val)
else begin
if direction=dir_tate then f:=cur_tfont else f:=cur_jfont;
KANJI(cx):=cur_val
end
end
else back_input;
if direction=dir_tate then
begin if font_dir[f]=dir_tate then disp:=0
else if font_dir[f]=dir_yoko then disp:=t_baseline_shift-y_baseline_shift
else disp:=t_baseline_shift
end
else begin if font_dir[f]=dir_yoko then disp:=0
else if font_dir[f]=dir_tate then disp:=y_baseline_shift-t_baseline_shift
else disp:=y_baseline_shift
end;
@<Append |disp_node| at begin of displace area@>;
if KANJI(cx)<>empty then
begin q:=new_character(f,get_jfm_pos(KANJI(cx),f));
link(q):=get_avail; info(link(q)):=KANJI(cx); last_jchr:=q;
end;
@z
@x [47.1125] l.22200 - pTeX: make_accent Kanji
if h<>x then {the accent must be shifted up or down}
begin p:=hpack(p,natural); shift_amount(p):=x-h;
end;
@y
if h<>x then {the accent must be shifted up or down}
begin delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
cur_kanji_skip:=zero_glue; cur_xkanji_skip:=zero_glue;
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
p:=hpack(p,natural); shift_amount(p):=x-h;
end;
@z
@x [47.1125] pTeX: make accent Kanji
tail:=new_kern(-a-delta); subtype(tail):=acc_kern; link(p):=tail; p:=q;
@y
tail:=new_kern(-a-delta); subtype(tail):=acc_kern;
if h=x then begin
if font_dir[font(p)]<>dir_default then link(link(p)):=tail
else link(p):=tail; end
else link(p):=tail;
{ bugfix: if |p| is KANJI char, |link(p)|:=|tail| collapses |p| and kern after accent. }
p:=q;
@z
@x [48.1138] l.22385 - pTeX: init math : direction < 0 ... math direction
if (cur_cmd=math_shift)and(mode>0) then @<Go into display math mode@>
else begin back_input; @<Go into ordinary math mode@>;
end;
@y
if (cur_cmd=math_shift)and(mode>0) then @<Go into display math mode@>
else begin back_input; @<Go into ordinary math mode@>;
end;
direction:=-abs(direction);
@z
@x [48.1145] l.22435 - pTeX: Call adjust_hlist at begin of display
else begin line_break(display_widow_penalty);@/
@y
else if (link(head)=tail)and(not is_char_node(tail)and(type(tail)=disp_node)) then
begin free_node(tail,small_node_size); tail:=head; link(head):=null;
pop_nest; w:=-max_dimen;
end
{ |disp_node|-only paragraphs are ignored }
else begin adjust_hlist(head,true); line_break(display_widow_penalty);@/
@z
@x [48.1147] l.22471 - pTeX: Skip kanji 2nd node, dir_node
reswitch: if is_char_node(p) then
begin f:=font(p); d:=char_width(f)(char_info(f)(character(p)));
goto found;
end;
case type(p) of
hlist_node,vlist_node,rule_node: begin d:=width(p); goto found;
end;
@y
reswitch: if is_char_node(p) then
begin f:=font(p); d:=char_width(f)(orig_char_info(f)(character(p)));
if font_dir[f]<>dir_default then p:=link(p);
goto found;
end;
case type(p) of
hlist_node,vlist_node,dir_node,rule_node: begin d:=width(p); goto found;
end;
@z
@x [48.1150] l.22541 - pTeX: scan_math
mmode+left_brace: begin tail_append(new_noad);
back_input; scan_math(nucleus(tail));
end;
@y
mmode+left_brace: begin tail_append(new_noad);
back_input; scan_math(nucleus(tail),kcode_noad(tail));
end;
@z
@x [48.1151] l.22555 - pTeX: scan_math: use Kanji in math_mode
procedure scan_math(@!p:pointer);
label restart,reswitch,exit;
var c:integer; {math character code}
begin restart:@<Get the next non-blank non-relax...@>;
reswitch:case cur_cmd of
letter,other_char,char_given: begin c:=ho(math_code(cur_chr));
if c=@'100000 then
begin @<Treat |cur_chr| as an active character@>;
goto restart;
end;
end;
@y
procedure scan_math(@!p,@!q:pointer);
label restart,reswitch,exit;
var c:integer; {math character code}
cx:KANJI_code; {temporary register for KANJI}
begin KANJI(cx):=0;
restart: @<Get the next non-blank non-relax...@>;
reswitch:case cur_cmd of
letter,other_char,char_given:
if is_char_ascii(cur_chr) then begin
c:=ho(math_code(cur_chr));
if c=@'100000 then
begin @<Treat |cur_chr| as an active character@>;
goto restart;
end;
end
else
KANJI(cx):=cur_chr;
kanji,kana,other_kchar: cx:=cur_chr;
@z
@x [48.1151] l.22576 - pTeX: scan_math: use Kanji in math_mode
math_type(p):=math_char; character(p):=qi(c mod 256);
if (c>=var_code)and fam_in_range then fam(p):=cur_fam
else fam(p):=(c div 256) mod 16;
@y
if KANJI(cx)=0 then
begin math_type(p):=math_char; character(p):=qi(c mod 256);
if (c>=var_code)and(fam_in_range) then fam(p):=cur_fam
else fam(p):=(c div 256) mod 16;
if font_dir[fam_fnt(fam(p)+cur_size)]<>dir_default then
begin print_err("Not one-byte family");
help1("IGNORE.");@/
error;
end
end
else begin
if q=null then
begin math_type(p):=sub_mlist; info(p):=new_noad;
p:=nucleus(info(p)); q:=kcode_noad_nucleus(p);
end;
math_type(p):=math_jchar; fam(p):=cur_jfam; character(p):=qi(0);
math_kcode(p-1):=KANJI(cx);
if font_dir[fam_fnt(fam(p)+cur_size)]=dir_default then
begin print_err("Not two-byte family");
help1("IGNORE.");@/
error;
end
end;
@z
@x [48.1154] l.22605 - pTeX: math mode
mmode+letter,mmode+other_char,mmode+char_given:
set_math_char(ho(math_code(cur_chr)));
mmode+char_num: begin scan_char_num; cur_chr:=cur_val;
set_math_char(ho(math_code(cur_chr)));
end;
@y
mmode+letter,mmode+other_char,mmode+char_given:
if is_char_ascii(cur_chr) then
set_math_char(ho(math_code(cur_chr)))
else set_math_kchar(cur_chr);
mmode+kanji,mmode+kana,mmode+other_kchar: begin
cx:=cur_chr; set_math_kchar(KANJI(cx));
end;
mmode+char_num: begin scan_char_num; cur_chr:=cur_val;
if is_char_ascii(cur_chr) then
set_math_char(ho(math_code(cur_chr)))
else set_math_kchar(cur_chr);
end;
@z
@x [48.1155] l.22635 - pTeX: set_math_char
link(tail):=p; tail:=p;
@y
link(tail):=p; tail:=p;
if font_dir[fam_fnt(fam(nucleus(p))+cur_size)]<>dir_default then begin
print_err("Not one-byte family");
help1("IGNORE.");@/
error;
end;
@z
@x [48.1158] l.22690 - pTeX: scan_math
type(tail):=cur_chr; scan_math(nucleus(tail));
@y
type(tail):=cur_chr; scan_math(nucleus(tail),kcode_noad(tail));
@z
@x [48.1163] l.22750 - pTeX: scan_math
scan_delimiter(left_delimiter(tail),true); scan_math(nucleus(tail));
@y
scan_delimiter(left_delimiter(tail),true);
scan_math(nucleus(tail),kcode_noad(tail));
@z
@x [48.1164] l.22770 - pTeX: scan_math
scan_math(nucleus(tail));
@y
scan_math(nucleus(tail),kcode_noad(tail));
@z
@x [48.1164] l.22790 - pTeX: vcenter : dir
p:=vpack(link(head),saved(1),saved(0)); pop_nest;
tail_append(new_noad); type(tail):=vcenter_noad;
math_type(nucleus(tail)):=sub_box; info(nucleus(tail)):=p;
end;
@y
p:=vpack(link(head),saved(1),saved(0));
set_box_dir(p)(direction); pop_nest;
if abs(box_dir(p))<>abs(direction) then p:=new_dir_node(p,abs(direction));
tail_append(new_noad); type(tail):=vcenter_noad;
math_type(nucleus(tail)):=sub_box; info(nucleus(tail)):=p;
end;
@z
@x [48.1176] l.22864 - pTeX: scan_math
scan_math(p);
@y
scan_math(p,null);
@z
@x [48.1186] l.23006 - pTeX: copy kanji code
if math_type(supscr(p))=empty then
begin mem[saved(0)].hh:=mem[nucleus(p)].hh;
@y
if ((math_type(supscr(p))=empty)and(math_kcode(p)=null)) then
begin mem[saved(0)].hh:=mem[nucleus(p)].hh;
@z
@x [48.1194] l.23078 - pTeX: set cur_kanji_skip, cur_xkanji_skip
var l:boolean; {`\.{\\leqno}' instead of `\.{\\eqno}'}
@y
var l:boolean; {`\.{\\leqno}' instead of `\.{\\eqno}'}
@!disp:scaled; {displacement}
@z
@x [48.1194] l.23087 - pTeX: set cur_kanji_skip, cur_xkanji_skip
m:=mode; l:=false; p:=fin_mlist(null); {this pops the nest}
@y
delete_glue_ref(cur_kanji_skip); delete_glue_ref(cur_xkanji_skip);
if auto_spacing>0 then cur_kanji_skip:=kanji_skip
else cur_kanji_skip:=zero_glue;
if auto_xspacing>0 then cur_xkanji_skip:=xkanji_skip
else cur_xkanji_skip:=zero_glue;
add_glue_ref(cur_kanji_skip); add_glue_ref(cur_xkanji_skip);
m:=mode; l:=false; p:=fin_mlist(null); {this pops the nest}
@z
@x [48.1196] l.23134 - pTeX: insert disp_node
begin tail_append(new_math(math_surround,before));
cur_mlist:=p; cur_style:=text_style; mlist_penalties:=(mode>0); mlist_to_hlist;
link(tail):=link(temp_head);
while link(tail)<>null do tail:=link(tail);
tail_append(new_math(math_surround,after));
space_factor:=1000; unsave;
end
@y
begin if direction=dir_tate then disp:=t_baseline_shift
else disp:=y_baseline_shift;
@<Append |disp_node| at begin of displace area@>;
tail_append(new_math(math_surround,before));
cur_mlist:=p; cur_style:=text_style; mlist_penalties:=(mode>0); mlist_to_hlist;
link(tail):=link(temp_head);
while link(tail)<>null do tail:=link(tail);
tail_append(new_math(math_surround,after));
@<Append |disp_node| at end of displace area@>;
space_factor:=1000; inhibit_glue_flag:=false; unsave;
end
@z
@x [48.1200] l.23203 - pTeX: adjust direction
push_nest; mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
@y
push_nest; adjust_dir:=direction; inhibit_glue_flag:=false;
mode:=hmode; space_factor:=1000; set_cur_lang; clang:=cur_lang;
@z
@x [48.1201] l.23217 - pTeX: free box node
begin free_node(b,box_node_size);
@y
begin delete_glue_ref(space_ptr(b)); delete_glue_ref(xspace_ptr(b));
free_node(b,box_node_size);
@z
@x [48.1201] l.23222 - pTeX: free box node
begin free_node(b,box_node_size);
@y
begin delete_glue_ref(space_ptr(b)); delete_glue_ref(xspace_ptr(b));
free_node(b,box_node_size);
@z
@x [49.1210] l.23361 - pTeX: set_auto_spacing
any_mode(toks_register),
any_mode(assign_toks),
any_mode(assign_int),
@y
any_mode(assign_kinsoku),
any_mode(assign_inhibit_xsp_code),
any_mode(set_auto_spacing),
any_mode(set_kansuji_char),
any_mode(toks_register),
any_mode(assign_toks),
any_mode(assign_int),
any_mode(def_jfont),
any_mode(def_tfont),
@z
@x [49.1211] l.23397 - pTeX: prefixed_command
@t\4@>@<Declare subprocedures for |prefixed_command|@>@t@>@;@/
procedure prefixed_command;
label done,exit;
var a:small_number; {accumulated prefix codes so far}
@y
@t\4@>@<Declare the function called |scan_keyword_noexpand|@>
@<Declare subprocedures for |prefixed_command|@>@t@>@;@/
procedure prefixed_command;
label done,exit;
var a:small_number; {accumulated prefix codes so far}
@!m:integer; {ditto}
@z
@x [49.1217] l.23487 - pTeX: select cur font
set_font: define(cur_font_loc,data,cur_chr);
@y
set_font: begin
if font_dir[cur_chr]=dir_yoko then
define(cur_jfont_loc,data,cur_chr)
else if font_dir[cur_chr]=dir_tate then
define(cur_tfont_loc,data,cur_chr)
else
define(cur_font_loc,data,cur_chr)
end;
@z
@x l.23504 - pTeX
primitive("futurelet",let,normal+1);@/
@!@:future_let_}{\.{\\futurelet} primitive@>
@ @<Cases of |print_cmd_chr|...@>=
let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
@ @<Assignments@>=
let: begin n:=cur_chr;
@y
primitive("futurelet",let,normal+1);@/
@!@:future_let_}{\.{\\futurelet} primitive@>
@ @<Cases of |print_cmd_chr|...@>=
let: if chr_code<>normal then print_esc("futurelet")@+else print_esc("let");
@ @<Assignments@>=
let: begin n:=cur_chr;
@z
@x [49.1228] l.23785 - pTeX: assign jfam
assign_int: begin p:=cur_chr; scan_optional_equals; scan_int;
word_define(p,cur_val);
end;
@y
assign_int: begin p:=cur_chr; scan_optional_equals; scan_int;
if p=int_base+cur_fam_code then
begin if font_dir[fam_fnt(cur_val)]<>dir_default then
word_define(int_base+cur_jfam_code,cur_val)
else word_define(p,cur_val);
end
else word_define(p,cur_val);
end;
@z
@x [49.1230] l.23812 - pTeX: xspcode, kcatcode
@<Put each...@>=
primitive("catcode",def_code,cat_code_base);
@!@:cat_code_}{\.{\\catcode} primitive@>
@y
@<Put each...@>=
primitive("catcode",def_code,cat_code_base);
@!@:cat_code_}{\.{\\catcode} primitive@>
primitive("kcatcode",def_code,kcat_code_base);
@!@:cat_code_}{\.{\\kcatcode} primitive@>
primitive("xspcode",def_code,auto_xsp_code_base);
@!@:auto_xsp_code_}{\.{\\xspcode} primitive@>
@z
@x [49.1231] l.23842 - pTeX: xspcode, kcatcode
def_code: if chr_code=cat_code_base then print_esc("catcode")
else if chr_code=math_code_base then print_esc("mathcode")
@y
def_code: if chr_code=cat_code_base then print_esc("catcode")
else if chr_code=kcat_code_base then print_esc("kcatcode")
else if chr_code=auto_xsp_code_base then print_esc("xspcode")
else if chr_code=math_code_base then print_esc("mathcode")
@z
@x [49.1232] l.23857 - pTeX: kcatcode
def_code: begin @<Let |n| be the largest legal code value, based on |cur_chr|@>;
p:=cur_chr; scan_char_num; p:=p+cur_val; scan_optional_equals;
scan_int;
if ((cur_val<0)and(p<del_code_base))or(cur_val>n) then
begin print_err("Invalid code ("); print_int(cur_val);
@.Invalid code@>
if p<del_code_base then print("), should be in the range 0..")
else print("), should be at most ");
print_int(n);
help1("I'm going to use 0 instead of that illegal code value.");@/
error; cur_val:=0;
end;
if p<math_code_base then define(p,data,cur_val)
else if p<del_code_base then define(p,data,hi(cur_val))
else word_define(p,cur_val);
end;
@y
def_code: begin
@<Let |m| be the minimal legal code value, based on |cur_chr|@>;
@<Let |n| be the largest legal code value, based on |cur_chr|@>;
p:=cur_chr;
if p=kcat_code_base then
begin scan_char_num; p:=p+kcatcodekey(cur_val) end
else begin scan_ascii_num; p:=p+cur_val; end;
scan_optional_equals; scan_int;
if ((cur_val<m)and(p<del_code_base))or(cur_val>n) then
begin print_err("Invalid code ("); print_int(cur_val);
@.Invalid code@>
if p<del_code_base then
begin print("), should be in the range "); print_int(m); print("..");
end
else print("), should be at most ");
print_int(n);
if m=0 then
begin help1("I'm going to use 0 instead of that illegal code value.");@/
error; cur_val:=0;
end
else
begin help1("I'm going to use 16 instead of that illegal code value.");@/
error; cur_val:=16;
end;
end;
if p<math_code_base then define(p,data,cur_val)
else if p<del_code_base then define(p,data,hi(cur_val))
else word_define(p,cur_val);
end;
@z
@x [49.1233] l.23882 - pTeX: kcatcode
@ @<Let |n| be the largest...@>=
if cur_chr=cat_code_base then n:=max_char_code
@y
@ @<Let |m| be the minimal...@>=
if cur_chr=kcat_code_base then m:=kanji else m:=0
@ @<Let |n| be the largest...@>=
if cur_chr=cat_code_base then n:=invalid_char {1byte |max_char_code|}
else if cur_chr=kcat_code_base then n:=max_char_code
@z
@x [49.1247] l.24083 - pTeX: alter_box_dimen : box_dir
procedure alter_box_dimen;
var c:small_number; {|width_offset| or |height_offset| or |depth_offset|}
@y
procedure alter_box_dimen;
var c:small_number; {|width_offset| or |height_offset| or |depth_offset|}
@!p,q:pointer; {temporary registers}
@z
@x [49.1247] l.24087 - pTeX: alter_box_dimen : box_dir
scan_normal_dimen;
if box(b)<>null then mem[box(b)+c].sc:=cur_val;
end;
@y
scan_normal_dimen;
if box(b)<>null then
begin q:=box(b); p:=link(q);
while p<>null do
begin if abs(direction)=abs(box_dir(p)) then q:=p;
p:=link(p);
end;
if abs(box_dir(q))<>abs(direction) then
begin p:=link(box(b)); link(box(b)):=null;
q:=new_dir_node(q,abs(direction)); list_ptr(q):=null;
link(q):=p; link(box(b)):=q;
end;
mem[q+c].sc:=cur_val;
end;
end;
@z
@x [49.1256] l.24163 - pTeX: def_tfont
def_font: new_font(a);
@y
def_tfont,def_jfont,def_font: new_font(a);
@z
@x [49.????] pTeX: new_font
get_r_token; u:=cur_cs;
@y
@<Scan the font encoding specification@>;
get_r_token; u:=cur_cs;
@z
@x [49.1292] l.24451 - pTeX: shift_case
@<Change the case of the token in |p|, if a change is appropriate@>=
t:=info(p);
if t<cs_token_flag+single_base then
begin c:=t mod 256;
if equiv(b+c)<>0 then info(p):=t-c+equiv(b+c);
end
@y
@<Change the case of the token in |p|, if a change is appropriate@>=
t:=info(p);
if (t<cs_token_flag+single_base)and(not check_kanji(t)) then
begin c:=t mod 256;
if equiv(b+c)<>0 then info(p):=t-c+equiv(b+c);
end
@z
@x [49.1291] l.24467 - pTeX: show_mode
@d show_lists_code=3 { \.{\\showlists} }
@y
@d show_lists_code=3 { \.{\\showlists} }
@d show_mode=4 { \.{\\showmode} }
@z
@x [49.1291] l.24476 - pTeX: show_mode
primitive("showlists",xray,show_lists_code);
@!@:show_lists_code_}{\.{\\showlists} primitive@>
@y
primitive("showlists",xray,show_lists_code);
@!@:show_lists_code_}{\.{\\showlists} primitive@>
primitive("showmode",xray,show_mode);
@!@:show_mode_}{\.{\\showmode} primitive@>
@z
@x [49.1292] l.24483 - pTeX: show_mode
othercases print_esc("show")
@y
show_mode:print_esc("showmode");
othercases print_esc("show")
@z
@x [49.1293] l.24495 - pTeX: show_mode
show_code: @<Show the current meaning of a token, then |goto common_ending|@>;
@y
show_code: @<Show the current meaning of a token, then |goto common_ending|@>;
show_mode: @<Show the current japanese processing mode@>;
@z
@x dump
@!format_engine: ^text_char;
@y
@!w: four_quarters; {four ASCII codes}
@!format_engine: ^text_char;
@z
@x undump
@!format_engine: ^text_char;
@!dummy_xord: ASCII_code;
@!dummy_xchr: text_char;
@y
@!w: four_quarters; {four ASCII codes}
@!format_engine: ^text_char;
@!dummy_xord: ASCII_code;
@!dummy_xchr: ext_ASCII_code;
@z
@x
libc_free(format_engine);@/
@y
libc_free(format_engine);@/
dump_kanji(fmt_file);
@z
@x
libc_free(format_engine);
@y
libc_free(format_engine);
undump_kanji(fmt_file);
@z
@x
dump_things(str_pool[0], pool_ptr);
@y
for k:=0 to str_ptr do dump_int(str_start[k]);
k:=0;
while k+4<pool_ptr do
begin dump_four_ASCII; k:=k+4;
end;
k:=pool_ptr-4; dump_four_ASCII;
@z
@x
undump_things(str_pool[0], pool_ptr);
@y
for k:=0 to str_ptr do undump(0)(pool_ptr)(str_start[k]);
k:=0;
while k+4<pool_ptr do
begin undump_four_ASCII; k:=k+4;
end;
k:=pool_ptr-4; undump_four_ASCII;
@z
@x l.24982
font_info:=xmalloc_array(fmemory_word, font_mem_size);
@y
font_info:=xmalloc_array(memory_word, font_mem_size);
@z
@x [50.1320] l.24988 - pTeX:
@ @<Dump the array info for internal font number |k|@>=
begin
dump_things(font_check[null_font], font_ptr+1-null_font);
@y
@ @<Dump the array info for internal font number |k|@>=
begin
dump_things(font_dir[null_font], font_ptr+1-null_font);
dump_things(font_enc[null_font], font_ptr+1-null_font);
dump_things(font_num_ext[null_font], font_ptr+1-null_font);
dump_things(font_check[null_font], font_ptr+1-null_font);
@z
@x [50.1321] l.25000 - pTeX:
dump_things(char_base[null_font], font_ptr+1-null_font);
@y
dump_things(ctype_base[null_font], font_ptr+1-null_font);
dump_things(char_base[null_font], font_ptr+1-null_font);
@z
@x [50.1322] l.25024 - pTeX:
@<Undump the array info for internal font number |k|@>=
begin {Allocate the font arrays}
@y
@<Undump the array info for internal font number |k|@>=
begin {Allocate the font arrays}
font_dir:=xmalloc_array(eight_bits, font_max);
font_enc:=xmalloc_array(eight_bits, font_max);
font_num_ext:=xmalloc_array(integer, font_max);
@z
@x [50.1322] l.25040 - pTeX:
char_base:=xmalloc_array(integer, font_max);
@y
ctype_base:=xmalloc_array(integer, font_max);
char_base:=xmalloc_array(integer, font_max);
@z
@x [50.1322] l.25050 - pTeX:
undump_things(font_check[null_font], font_ptr+1-null_font);
@y
undump_things(font_dir[null_font], font_ptr+1-null_font);
undump_things(font_enc[null_font], font_ptr+1-null_font);
undump_things(font_num_ext[null_font], font_ptr+1-null_font);
undump_things(font_check[null_font], font_ptr+1-null_font);
@z
@x [50.1322] l.25064 - pTeX:
undump_things(char_base[null_font], font_ptr+1-null_font);
@y
undump_things(ctype_base[null_font], font_ptr+1-null_font);
undump_things(char_base[null_font], font_ptr+1-null_font);
@z
@x
buffer:=xmalloc_array (ASCII_code, buf_size);
@y
buffer:=xmalloc_array (ASCII_code, buf_size);
buffer2:=xmalloc_array (ASCII_code, buf_size);
@z
@x l.25363 - pTeX
font_info:=xmalloc_array (fmemory_word, font_mem_size);
@y
font_info:=xmalloc_array (memory_word, font_mem_size);
@z
@x [51.1337] l.25563 - pTeX:
font_check:=xmalloc_array(four_quarters, font_max);
@y
font_dir:=xmalloc_array(eight_bits, font_max);
font_enc:=xmalloc_array(eight_bits, font_max);
font_num_ext:=xmalloc_array(integer, font_max);
font_check:=xmalloc_array(four_quarters, font_max);
@z
@x [51.1337] l.25577 - pTeX:
char_base:=xmalloc_array(integer, font_max);
@y
ctype_base:=xmalloc_array(integer, font_max);
char_base:=xmalloc_array(integer, font_max);
@z
@x [51.1337] l.25587 - pTeX:
font_ptr:=null_font; fmem_ptr:=7;
@y
font_ptr:=null_font; fmem_ptr:=7;
font_dir[null_font]:=dir_default;
font_enc[null_font]:=0;
font_num_ext[null_font]:=0;
@z
@x [51.1337] l.25594 - pTeX:
char_base[null_font]:=0; width_base[null_font]:=0;
@y
ctype_base[null_font]:=0; char_base[null_font]:=0; width_base[null_font]:=0;
@z
@x [53.????] new_write_whatsit, inhibit_glue_flag
write_stream(tail):=cur_val;
end;
@y
write_stream(tail):=cur_val;
inhibit_glue_flag:=false;
end;
@z
@x [53.????] Implement \special, inhibit_glue_flag
@<Implement \.{\\special}@>=
begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
p:=scan_toks(false,true); write_tokens(tail):=def_ref;
end
@y
@<Implement \.{\\special}@>=
begin new_whatsit(special_node,write_node_size); write_stream(tail):=null;
p:=scan_toks(false,true); write_tokens(tail):=def_ref;
inhibit_glue_flag:=false;
end
@z
@x [53.????] \write18{foo} (write_out in tex.ch)
@!d:integer; {number of characters in incomplete current string}
@y
@!k:integer; {loop indices}
@!d:integer; {number of characters in incomplete current string}
@z
@x [53.????] \write18{foo} (write_out in tex.ch)
for d:=0 to cur_length-1 do
begin {|print| gives up if passed |str_ptr|, so do it by hand.}
print(so(str_pool[str_start[str_ptr]+d])); {N.B.: not |print_char|}
end;
@y
for d:=0 to cur_length-1 do
begin {|print| gives up if passed |str_ptr|, so do it by hand.}
if so(str_pool[str_start[str_ptr]+d])>=@"100 then
print_char(so(str_pool[str_start[str_ptr]+d]))
else print(so(str_pool[str_start[str_ptr]+d])); {N.B.: not |print_char|}
end;
@z
@x [53.????] ignore "flag bit" in str_pool for system(3)
runsystem_ret := runsystem(conststringcast(addressof(
str_pool[str_start[str_ptr]])));
@y
if name_of_file then libc_free(name_of_file);
name_of_file := xmalloc(cur_length*4+1);
k := 0;
for d:=0 to cur_length-1 do
append_to_name_escape(str_pool[str_start[str_ptr]+d]); {do not remove quote}
name_of_file[k+1] := 0;
runsystem_ret := runsystem(conststringcast(name_of_file+1));
@z
@x [53.????] Implement \immediate, inhibit_glue_flag
begin p:=tail; do_extension; {append a whatsit node}
out_what(tail); {do the action immediately}
flush_node_list(tail); tail:=p; link(p):=null;
end
@y
begin k:=inhibit_glue_flag;
p:=tail; do_extension; {append a whatsit node}
out_what(tail); {do the action immediately}
flush_node_list(tail); tail:=p; link(p):=null;
inhibit_glue_flag:=k;
end
@z
@x [53.????] fix_language, inhibit_glue_flag
if l<>clang then
begin new_whatsit(language_node,small_node_size);
@y
if l<>clang then
begin inhibit_glue_flag:=false;
new_whatsit(language_node,small_node_size);
@z
@x [53.????] set_language, inhibit_glue_flag
if abs(mode)<>hmode then report_illegal_case
else begin new_whatsit(language_node,small_node_size);
@y
if abs(mode)<>hmode then report_illegal_case
else begin inhibit_glue_flag:=false;
new_whatsit(language_node,small_node_size);
@z
@x [53.1376] l.26309 - pTeX:
@<Glob...@> =
@!debug_format_file: boolean;
@y
@<Glob...@> =
@!debug_format_file: boolean;
@ @<Set init...@>=
@!debug debug_format_file:=true; @+gubed;
@z
@x pTeX: xchr
if eight_bit_p then
for k:=0 to 255 do
xprn[k]:=1;
end;
@y
if eight_bit_p then
for k:=0 to 255 do
xprn[k]:=1;
end;
for k:=256 to 511 do xchr[k]:=k;
@z
@x [54/web2c.???] scan_file_name_braced
for i:=str_start[s] to str_start[s+1]-1 do
dummy := more_name(str_pool[i]); {add each read character to the current file name}
@y
for i:=str_start[s] to str_start[s+1]-1 do
if str_pool[i]>=@"100 then
begin str_room(1); append_char(str_pool[i]);
end
else
dummy := more_name(str_pool[i]); {add each read character to the current file name}
@z
@x l.26984 - pTeX
@* \[54] System-dependent changes.
@y
@* \[55/\pTeX] System-dependent changes for \pTeX.
This section described extended variables, procesures, functions and so on
for \pTeX.
@<Declare procedures that scan font-related stuff@>=
function get_jfm_pos(@!kcode:KANJI_code;@!f:internal_font_number):eight_bits;
var @!jc:KANJI_code; {temporary register for KANJI}
@!sp,@!mp,@!ep:pointer;
begin@/
if f=null_font then
begin get_jfm_pos:=kchar_type(null_font)(0); return;
end;
jc:=toDVI(kcode);
sp:=1; { start position }
ep:=font_num_ext[f]-1; { end position }
if (ep>=1) then { nt is larger than 1; |char_type| is non-empty }
if font_enc[f]=0 then { |kchar_code| are ordered; faster search }
begin if (kchar_code(f)(sp)<=jc)and(jc<=kchar_code(f)(ep)) then
begin while (sp <= ep) do
begin mp:=sp+((ep-sp) div 2);
if jc<kchar_code(f)(mp) then ep:=mp-1
else if jc>kchar_code(f)(mp) then sp:=mp+1
else
begin get_jfm_pos:=kchar_type(f)(mp); return;
end;
end;
end;
end
else { TFM-DVI encoding conversion; whole search }
begin while (sp <= ep) do
if jc=kchar_code(f)(sp) then
begin get_jfm_pos:=kchar_type(f)(sp); return;
end
else incr(sp);
end;
get_jfm_pos:=kchar_type(f)(0);
end;
@ The function |scan_keyword_noexpand| is used to scan a keyword
preceding possibly undefined control sequence.
It is used while scanning \.{\\font} with JFM encoding specification.
@<Declare the function called |scan_keyword_noexpand|@>=
function scan_keyword_noexpand(@!s:str_number):boolean;
label exit;
var p:pointer; {tail of the backup list}
@!q:pointer; {new node being added to the token list via |store_new_token|}
@!k:pool_pointer; {index into |str_pool|}
begin p:=backup_head; link(p):=null; k:=str_start[s];
while k<str_start[s+1] do
begin get_token; {no expansion}
if (cur_cs=0)and@|
((cur_chr=so(str_pool[k]))or(cur_chr=so(str_pool[k])-"a"+"A")) then
begin store_new_token(cur_tok); incr(k);
end
else if (cur_cmd<>spacer)or(p<>backup_head) then
begin back_input;
if p<>backup_head then back_list(link(backup_head));
scan_keyword_noexpand:=false; return;
end;
end;
flush_list(link(backup_head)); scan_keyword_noexpand:=true;
exit:end;
@ @<Scan the font encoding specification@>=
begin jfm_enc:=0;
if scan_keyword_noexpand("in") then
if scan_keyword_noexpand("jis") then jfm_enc:=1
else if scan_keyword_noexpand("ucs") then jfm_enc:=2
else begin
print_err("Unknown TFM encoding");
@.Unknown TFM encoding@>
help1("TFM encoding specification is ignored.");@/
error;
end;
end
@ Following codes are used to calculate a KANJI width and height.
@<Local variables for dimension calculations@>=
@!t: eight_bits;
@ @<The KANJI width for |cur_jfont|@>=
if direction=dir_tate then
v:=char_width(cur_tfont)(orig_char_info(cur_tfont)(qi(0)))
else
v:=char_width(cur_jfont)(orig_char_info(cur_jfont)(qi(0)))
@ @<The KANJI height for |cur_jfont|@>=
if direction=dir_tate then begin
t:=height_depth(orig_char_info(cur_tfont)(qi(0)));
v:=char_height(cur_tfont)(t)+char_depth(cur_tfont)(t);
end else begin
t:=height_depth(orig_char_info(cur_jfont)(qi(0)));
v:=char_height(cur_jfont)(t)+char_depth(cur_jfont)(t);
end
@ set a kansuji character.
@ @<Put each...@>=
primitive("kansujichar",set_kansuji_char,0);
@!@:kansujichar_}{\.{\\kansujichar} primitive@>
@ @<Cases of |print_cmd_chr|...@>=
set_kansuji_char: print_esc("kansujichar");
@ @<Assignments@>=
set_kansuji_char:
begin p:=cur_chr; scan_int; n:=cur_val; scan_optional_equals; scan_int;
if not is_char_kanji(cur_val) then
begin print_err("Invalid KANSUJI char (");
print_hex_safe(cur_val); print_char(")");
@.Invalid KANSUJI char@>
help1("I'm skipping this control sequences.");@/
error; return;
end
else if (n<0)or(n>9) then
begin print_err("Invalid KANSUJI number ("); print_int(n); print_char(")");
@.Invalid KANSUJI number@>
help1("I'm skipping this control sequences.");@/
error; return;
end
else
define(kansuji_base+n,n,tokanji(toDVI(cur_val)));
end;
@ @<Fetch kansuji char code from some table@>=
begin scan_int; cur_val_level:=int_val;
if (cur_val<0)or(cur_val>9) then
begin print_err("Invalid KANSUJI number ("); print_int(cur_val); print_char(")");
help1("I'm skipping this control sequences.");@/
error; return;
end
else
cur_val:=fromDVI(kansuji_char(cur_val));
end
@ |print_kansuji| procedure converts a number to KANJI number.
@ @<Declare procedures needed in |scan_something_internal|@>=
procedure print_kansuji(@!n:integer);
var @!k:0..23; {index to current digit; we assume that $|n|<10^{23}$}
@!cx: KANJI_code; {temporary register for KANJI}
begin k:=0;
if n<0 then return; {nonpositive input produces no output}
repeat dig[k]:=n mod 10; n:=n div 10; incr(k);
until n=0;
begin while k>0 do
begin decr(k);
cx:=kansuji_char(dig[k]);
print_kanji(fromDVI(cx));
end;
end;
end;
@ \pTeX\ inserts a glue specified by \.{\\kanjiskip} between 2byte-characters,
automatically, if \.{\\autospacing}. This glue is suppressed by
\.{\\noautospacing}.
\.{\\xkanjiskip}, \.{\\noautoxspacing}, \.{\\autoxspacing}, \.{\\xspcode} is
used to control between 2byte and 1byte characters.
@d reset_auto_spacing_code=0
@d set_auto_spacing_code=1
@d reset_auto_xspacing_code=2
@d set_auto_xspacing_code=3
@<Put each...@>=
primitive("autospacing",set_auto_spacing,set_auto_spacing_code);
@!@:auto_spacing_}{\.{\\autospacing} primitive@>
primitive("noautospacing",set_auto_spacing,reset_auto_spacing_code);
@!@:no_auto_spacing_}{\.{\\noautospacing} primitive@>
primitive("autoxspacing",set_auto_spacing,set_auto_xspacing_code);
@!@:auto_xspacing_}{\.{\\autoxspacing} primitive@>
primitive("noautoxspacing",set_auto_spacing,reset_auto_xspacing_code);
@!@:no_auto_xspacing_}{\.{\\noautoxspacing} primitive@>
@ @<Cases of |print_cmd_chr|...@>=
set_auto_spacing:begin
if (chr_code mod 2)=0 then print_esc("noauto") else print_esc("auto");
if chr_code<2 then print("spacing") else print("xspacing");
end;
@ @<Assignments@>=
set_auto_spacing:begin
if cur_chr<2 then p:=auto_spacing_code
else begin p:=auto_xspacing_code; cur_chr:=(cur_chr mod 2); end;
define(p,data,cur_chr);
end;
@ Following codes are used in section 49.
@<Show the current japanese processing mode@>=
begin print_nl("> ");
if auto_spacing>0 then print("auto spacing mode; ")
else print("no auto spacing mode; ");
print_nl("> ");
if auto_xspacing>0 then print("auto xspacing mode")
else print("no auto xspacing mode");
goto common_ending;
end
@ The \.{\\inhibitglue} primitive control to insert a glue specified
JFM (Japanese Font Metic) file. The \.{\\inhibitxspcode} is used to control
inserting a space between 2byte-char and 1byte-char.
@d inhibit_both=0 {disable to insert space before 2byte-char and after it}
@d inhibit_previous=1 {disable to insert space before 2byte-char}
@d inhibit_after=2 {disable to insert space after 2byte-char}
@d inhibit_none=3 {enable to insert space before/after 2byte-char}
@d inhibit_unused=4 {unused entry}
@d no_entry=10000
@d new_pos=0
@d cur_pos=1
@ @<Cases of |main_control| that don't...@>=
any_mode(inhibit_glue): inhibit_glue_flag:=(cur_chr=0);
@ @<Put each...@>=
primitive("inhibitglue",inhibit_glue,0);
@!@:inhibit_glue_}{\.{\\inhibitglue} primitive@>
primitive("disinhibitglue",inhibit_glue,1);
@!@:dis_inhibit_glue_}{\.{\\disinhibitglue} primitive@>
primitive("inhibitxspcode",assign_inhibit_xsp_code,inhibit_xsp_code_base);
@!@:inhibit_xsp_code_}{\.{\\inhibitxspcode} primitive@>
@ @<Cases of |print_cmd_chr|...@>=
inhibit_glue: if (chr_code>0) then print_esc("disinhibitglue")
else print_esc("inhibitglue");
assign_inhibit_xsp_code: print_esc("inhibitxspcode");
@ @<Declare procedures needed in |scan_something_internal|@>=
function get_inhibit_pos(c:KANJI_code; n:small_number):pointer;
label done, done1;
var p,pp,s:pointer;
begin s:=calc_pos(c); p:=s; pp:=no_entry;
if n=new_pos then
begin repeat
if inhibit_xsp_code(p)=c then goto done; { found, update there }
if inhibit_xsp_code(p)=0 then { no further scan needed }
begin if pp<>no_entry then p:=pp; goto done; end;
if inhibit_xsp_type(p)=inhibit_unused then
if pp=no_entry then pp:=p; { save the nearest unused hash }
incr(p); if p>1023 then p:=0;
until s=p;
p:=pp;
end
else
begin repeat
if inhibit_xsp_code(p)=0 then goto done1;
if inhibit_xsp_code(p)=c then goto done;
incr(p); if p>1023 then p:=0;
until s=p;
done1: p:=no_entry;
end;
done: get_inhibit_pos:=p;
end;
@ @<Assignments@>=
assign_inhibit_xsp_code:
begin p:=cur_chr; scan_int; n:=cur_val; scan_optional_equals; scan_int;
if is_char_kanji(n) then
begin j:=get_inhibit_pos(tokanji(n),new_pos);
if (j<>no_entry)and(cur_val>inhibit_after) then
begin if global or(cur_level=level_one) then cur_val:=inhibit_unused
{ remove the entry from inhibit table }
else cur_val:=inhibit_none; end
else if j=no_entry then
begin print_err("Inhibit table is full!!");
help1("I'm skipping this control sequences.");@/
error; return; end;
define(inhibit_xsp_code_base+j,cur_val,n);
end
else
begin print_err("Invalid KANJI code ("); print_hex_safe(n); print_char(")");
@.Invalid KANJI code@>
help1("I'm skipping this control sequences.");@/
error; return;
end;
end;
@ @<Fetch inhibit type from some table@>=
begin scan_int; q:=get_inhibit_pos(tokanji(cur_val),cur_pos);
cur_val_level:=int_val; cur_val:=inhibit_none;
if q<>no_entry then cur_val:=inhibit_xsp_type(q);
if cur_val>inhibit_none then cur_val:=inhibit_none;
end
@ The \.{\\prebreakpenalty} is used to specified amount of penalties inserted
before the 2byte-char which is first argument of this primitive.
The \.{\\postbreakpenalty} is inserted after the 2byte-char.
@d pre_break_penalty_code=1
@d post_break_penalty_code=2
@d kinsoku_unused_code=3
@<Put each...@>=
primitive("prebreakpenalty",assign_kinsoku,pre_break_penalty_code);
@!@:pre_break_penalty_}{\.{\\prebreakpenalty} primitive@>
primitive("postbreakpenalty",assign_kinsoku,post_break_penalty_code);
@!@:post_break_penalty_}{\.{\\postbreakpenalty} primitive@>
@ @<Cases of |print_cmd_chr|...@>=
assign_kinsoku: case chr_code of
pre_break_penalty_code: print_esc("prebreakpenalty");
post_break_penalty_code: print_esc("postbreakpenalty");
endcases;
@ @<Declare procedures needed in |scan_something_internal|@>=
function get_kinsoku_pos(c:KANJI_code; n:small_number):pointer;
label done, done1;
var p,pp,s:pointer;
begin s:=calc_pos(c); p:=s; pp:=no_entry;
@!debug
print_ln; print("c:="); print_int(c); print(", p:="); print_int(s);
if p+kinsoku_base<0 then
begin print("p is negative value"); print_ln;
end;
gubed
if n=new_pos then
begin repeat
if kinsoku_code(p)=c then goto done; { found, update there }
if kinsoku_type(p)=0 then { no further scan needed }
begin if pp<>no_entry then p:=pp; goto done; end;
if kinsoku_type(p)=kinsoku_unused_code then
if pp=no_entry then pp:=p; { save the nearest unused hash }
incr(p); if p>1023 then p:=0;
until s=p;
p:=pp;
end
else
begin repeat
if kinsoku_type(p)=0 then goto done1;
if kinsoku_code(p)=c then goto done;
incr(p); if p>1023 then p:=0;
until s=p;
done1: p:=no_entry;
end;
done: get_kinsoku_pos:=p;
end;
@ @<Assignments@>=
assign_kinsoku:
begin p:=cur_chr; scan_int; n:=cur_val; scan_optional_equals; scan_int;
if is_char_ascii(n) or is_char_kanji(n) then
begin j:=get_kinsoku_pos(tokanji(n),new_pos);
if (j<>no_entry)and(cur_val=0)and(global or(cur_level=level_one)) then
define(kinsoku_base+j,kinsoku_unused_code,0) { remove the entry from KINSOKU table }
else begin
if j=no_entry then begin
print_err("KINSOKU table is full!!");
help1("I'm skipping this control sequences.");@/
error; return; end;
if (p=pre_break_penalty_code)or(p=post_break_penalty_code) then
begin define(kinsoku_base+j,p,tokanji(n));
word_define(kinsoku_penalty_base+j,cur_val);
end
else confusion("kinsoku");
@:this can't happen kinsoku}{\quad kinsoku@>
end
end
else
begin print_err("Invalid KANJI code for ");
if p=pre_break_penalty_code then print("pre")
else if p=post_break_penalty_code then print("post")
else print_char("?");
print("breakpenalty ("); print_hex_safe(n); print_char(")");
@.Invalid KANJI code@>
help1("I'm skipping this control sequences.");@/
error; return;
end;
end;
@ @<Fetch breaking penalty from some table@>=
begin scan_int; q:=get_kinsoku_pos(tokanji(cur_val),cur_pos);
cur_val_level:=int_val; cur_val:=0;
if (q<>no_entry)and(m=kinsoku_type(q)) then
scanned_result(kinsoku_penalty(q))(int_val);
end
@ Following codes are used in |main_control|.
@<Insert kinsoku penalty@>=
begin kp:=get_kinsoku_pos(cx,cur_pos);
if kp<>no_entry then if kinsoku_penalty(kp)<>0 then
begin if kinsoku_type(kp)=pre_break_penalty_code then
begin if not is_char_node(cur_q)and(type(cur_q)=penalty_node) then
penalty(cur_q):=penalty(cur_q)+kinsoku_penalty(kp)
else
begin main_p:=link(cur_q); link(cur_q):=new_penalty(kinsoku_penalty(kp));
subtype(link(cur_q)):=kinsoku_pena; link(link(cur_q)):=main_p;
end;
end
else if kinsoku_type(kp)=post_break_penalty_code then
begin tail_append(new_penalty(kinsoku_penalty(kp)));
subtype(tail):=kinsoku_pena;
end;
end;
end;
@ @<Insert |pre_break_penalty| of |cur_chr|@>=
begin kp:=get_kinsoku_pos(cur_chr,cur_pos);
if kp<>no_entry then if kinsoku_penalty(kp)<>0 then
begin if kinsoku_type(kp)=pre_break_penalty_code then
if not is_char_node(tail)and(type(tail)=penalty_node) then
penalty(tail):=penalty(tail)+kinsoku_penalty(kp)
else
begin tail_append(new_penalty(kinsoku_penalty(kp)));
subtype(tail):=kinsoku_pena;
end;
end;
end;
@ @<Insert |post_break_penalty|@>=
begin kp:=get_kinsoku_pos(cx,cur_pos);
if kp<>no_entry then if kinsoku_penalty(kp)<>0 then
begin if kinsoku_type(kp)=post_break_penalty_code then
begin tail_append(new_penalty(kinsoku_penalty(kp)));
subtype(tail):=kinsoku_pena;
end;
end;
end;
@ This is a part of section 32.
The procedure |synch_dir| is used in |hlist_out| and |vlist_out|.
@d dvi_yoko=0
@d dvi_tate=1
@d dvi_dtou=3
@<Glob...@>=
@!dvi_dir:integer; {a \.{DVI} reader program thinks we direct to}
@!cur_dir_hv:integer; {\TeX\ thinks we direct to}
@!page_dir:eight_bits;
@ @<Set init...@>=
page_dir:=dir_yoko;
@ @<Declare procedures needed in |hlist_out|, |vlist_out|@>=
procedure synch_dir;
var tmp:scaled; {temporary resister}
begin
case cur_dir_hv of
dir_yoko:
if dvi_dir<>cur_dir_hv then begin
synch_h; synch_v; dvi_out(dirchg); dvi_out(dvi_yoko);
dir_used:=true;
case dvi_dir of
dir_tate: begin tmp:=cur_h; cur_h:=-cur_v; cur_v:=tmp end;
dir_dtou: begin tmp:=cur_h; cur_h:=cur_v; cur_v:=-tmp end;
endcases;
dvi_h:=cur_h; dvi_v:=cur_v; dvi_dir:=cur_dir_hv;
end;
dir_tate:
if dvi_dir<>cur_dir_hv then begin
synch_h; synch_v; dvi_out(dirchg); dvi_out(dvi_tate);
dir_used:=true;
case dvi_dir of
dir_yoko: begin tmp:=cur_h; cur_h:=cur_v; cur_v:=-tmp end;
dir_dtou: begin cur_v:=-cur_v; cur_h:=-cur_h; end;
endcases;
dvi_h:=cur_h; dvi_v:=cur_v; dvi_dir:=cur_dir_hv;
end;
dir_dtou:
if dvi_dir<>cur_dir_hv then begin
synch_h; synch_v; dvi_out(dirchg); dvi_out(dvi_dtou);
dir_used:=true;
case dvi_dir of
dir_yoko: begin tmp:=cur_h; cur_h:=-cur_v; cur_v:=tmp end;
dir_tate: begin cur_v:=-cur_v; cur_h:=-cur_h; end;
endcases;
dvi_h:=cur_h; dvi_v:=cur_v; dvi_dir:=cur_dir_hv;
end;
othercases
confusion("synch_dir");
endcases
end;
@ This function is called from |adjust_hlist| to check, whether
a list which pointed |box_p| contains a printing character.
If the list contains such a character, then return `true', otherwise `false'.
If the first matter is a character, |first_char| is stored it.
|last_char| is stored a last character. If no printing characters exist
in the list, |first_char| and |last_char| is null.
@^recursion@>
Note that |first_char| and |last_char| may be |math_node|.
@<Glob...@>=
@!first_char:pointer; {first printable character}
@!last_char:pointer; {last printable character}
@!find_first_char:boolean; {find for a first printable character?}
@ @<Declare procedures needed in |hlist_out|, |vlist_out|@>=
function check_box(box_p:pointer):boolean;
label done;
var @!p:pointer; {run through the current box}
@!flag:boolean; {found any printable character?}
begin flag:=false; p:=box_p;
while p<>null do
begin if is_char_node(p) then
repeat
if find_first_char then
begin first_char:=p; find_first_char:=false
end;
last_char:=p; flag:=true;
if font_dir[font(p)]<>dir_default then p:=link(p);
p:=link(p);
if p=null then goto done;
until not is_char_node(p);
case type(p) of
hlist_node:
begin flag:=true;
if shift_amount(p)=0 then
begin if check_box(list_ptr(p)) then flag:=true;
end
else if find_first_char then find_first_char:=false
else last_char:=null;
end;
ligature_node: if check_box(lig_ptr(p)) then flag:=true;
ins_node,disp_node,mark_node,adjust_node,whatsit_node,penalty_node:
do_nothing;
math_node:
if (subtype(p)=before)or(subtype(p)=after) then
begin if find_first_char then
begin find_first_char:=false; first_char:=p;
end;
last_char:=p; flag:=true;
end
else do_nothing; {\.{\\beginR} etc.}
kern_node:
if subtype(p)=acc_kern then
begin p:=link(p);
if is_char_node(p) then
if font_dir[font(p)]<>dir_default then p:=link(p);
p:=link(link(p));
if find_first_char then
begin find_first_char:=false; first_char:=p;
end;
last_char:=p; flag:=true;
if font_dir[font(p)]<>dir_default then p:=link(p);
end
else
begin flag:=true;
if find_first_char then find_first_char:=false
else last_char:=null;
end;
othercases begin flag:=true;
if find_first_char then find_first_char:=false
else last_char:=null;
end;
endcases;
p:=link(p);
end;
done: check_box:=flag;
end;
@ Following procedure |adjust_hlist| inserts \.{\\xkanjiskip} between
2byte-char and 1byte-char in hlist which pointed |p|.
Note that the skip is inserted into a place where too difficult to decide
whether inserting or not (i.e, before penalty, after penalty).
If |pf| is true then insert |jchr_widow_penalty| that is penalty for
creating a widow KANJI character line.
@d no_skip=0
@d after_schar=1 {denote after single byte character}
@d after_wchar=2 {denote after double bytes character}
@<Declare procedures needed in |hlist_out|, |vlist_out|@>=
procedure adjust_hlist(p:pointer;pf:boolean);
label exit;
var q,s,t,u,v,x,z:pointer;
i,k:halfword;
a: pointer; { temporary pointer for accent }
insert_skip:no_skip..after_wchar;
cx:KANJI_code; {temporary register for KANJI character}
ax:ASCII_code; {temporary register for ASCII character}
do_ins:boolean; {for inserting |xkanji_skip| into previous (or after) KANJI}
begin if link(p)=null then goto exit;
if auto_spacing>0 then
begin delete_glue_ref(space_ptr(p)); space_ptr(p):=kanji_skip;
add_glue_ref(kanji_skip);
end;
if auto_xspacing>0 then
begin delete_glue_ref(xspace_ptr(p)); xspace_ptr(p):=xkanji_skip;
add_glue_ref(xkanji_skip);
end;
u:=space_ptr(p); add_glue_ref(u);
s:=xspace_ptr(p); add_glue_ref(s);
if not is_char_node(link(p)) then
if (type(link(p))=glue_node)and(subtype(link(p))=jfm_skip+1) then
begin v:=link(p); link(p):=link(v);
fast_delete_glue_ref(glue_ptr(v)); free_node(v,small_node_size);
end
else if (type(link(p))=penalty_node)and(subtype(link(p))=kinsoku_pena) then
begin v:=link(link(p));
if (not is_char_node(v)) and (type(v)=glue_node)and(subtype(v)=jfm_skip+1) then
begin link(link(p)):=link(v);
fast_delete_glue_ref(glue_ptr(v)); free_node(v,small_node_size);
end
end;
i:=0; insert_skip:=no_skip; p:=link(p); v:=p; q:=p;
while p<>null do
begin if is_char_node(p) then
begin repeat @<Insert a space around the character |p|@>;
q:=p; p:=link(p); incr(i);
if (i>5)and pf then
begin if is_char_node(v) then
if font_dir[font(v)]<>dir_default then v:=link(v);
v:=link(v);
end;
until not is_char_node(p);
end
else
begin case type(p) of
hlist_node: @<Insert hbox surround spacing@>;
ligature_node: @<Insert ligature surround spacing@>;
penalty_node,disp_node: @<Insert penalty or displace surround spacing@>;
kern_node: if subtype(p)=explicit then insert_skip:=no_skip
else if subtype(p)=acc_kern then begin
{ When we insert \.{\\xkanjiskip}, we first ignore accent (and kerns) and
insert \.{\\xkanjiskip}, then we recover the accent. }
if q=p then begin t:=link(p);
{ if p is beginning on the list, we have only to ignore nodes. }
if is_char_node(t) then
if font_dir[font(t)]<>dir_default then t:=link(t);
p:=link(link(t));
if font_dir[font(p)]<>dir_default then
begin p:=link(p); insert_skip:=after_wchar; end
else insert_skip:=after_schar;
end
else begin
a:=p; t:=link(p);
if is_char_node(t) then
if font_dir[font(t)]<>dir_default then t:=link(t);
t:=link(link(t)); link(q):=t; p:=t;
@<Insert a space around the character |p|@>; incr(i);
if (i>5)and pf then
begin if is_char_node(v) then
if font_dir[font(v)]<>dir_default then v:=link(v);
v:=link(v);
end;
if link(q)<>t then link(link(q)):=a else link(q):=a;
end;
end;
math_node: @<Insert math surround spacing@>;
mark_node,adjust_node,ins_node,whatsit_node:
{These nodes are vanished when typeset is done}
do_nothing;
othercases insert_skip:=no_skip;
endcases;
q:=p; p:=link(p);
end;
end;
if not is_char_node(q)and(type(q)=glue_node)and(subtype(q)=jfm_skip+1) then
begin fast_delete_glue_ref(glue_ptr(q));
glue_ptr(q):=zero_glue; add_glue_ref(zero_glue);
end;
delete_glue_ref(u); delete_glue_ref(s);
if (v<>null)and pf and(i>5) then @<Make |jchr_widow_penalty| node@>;
exit:
end;
@ @<Insert a space around the character |p|@>=
if font_dir[font(p)]<>dir_default then
begin KANJI(cx):=info(link(p));
if insert_skip=after_schar then @<Insert ASCII-KANJI spacing@>;
p:=link(p); insert_skip:=after_wchar;
end
else
begin ax:=qo(character(p));
if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
if auto_xsp_code(ax)>=2 then
insert_skip:=after_schar else insert_skip:=no_skip;
end
@ @<Insert hbox surround spacing@>=
begin find_first_char:=true; first_char:=null; last_char:=null;
if shift_amount(p)=0 then
begin if check_box(list_ptr(p)) then
begin if first_char<>null then @<Insert a space before the |first_char|@>;
if last_char<>null then
begin @<Insert a space after the |last_char|@>;
end else insert_skip:=no_skip;
end else insert_skip:=no_skip;
end else insert_skip:=no_skip;
end
@ @<Insert a space before the |first_char|@>=
if type(first_char)=math_node then
begin ax:=qo("0");
if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
end
else if font_dir[font(first_char)]<>dir_default then
begin KANJI(cx):=info(link(first_char));
if insert_skip=after_schar then @<Insert ASCII-KANJI spacing@>
else if insert_skip=after_wchar then @<Insert KANJI-KANJI spacing@>;
end
else
begin ax:=qo(character(first_char));
if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
end;
@ @<Insert a space after the |last_char|@>=
if type(last_char)=math_node then
begin ax:=qo("0");
if auto_xsp_code(ax)>=2 then
insert_skip:=after_schar else insert_skip:=no_skip;
end
else if font_dir[font(last_char)]<>dir_default then
begin insert_skip:=after_wchar; KANJI(cx):=info(link(last_char));
if is_char_node(link(p))and(font_dir[font(link(p))]<>dir_default) then
begin @<Append KANJI-KANJI spacing@>; p:=link(p);
end;
end
else
begin ax:=qo(character(last_char));
if auto_xsp_code(ax)>=2 then
insert_skip:=after_schar else insert_skip:=no_skip;
end;
@ @<Insert math surround spacing@>=
begin if (subtype(p)=before)and(insert_skip=after_wchar) then
begin ax:=qo("0"); @<Insert KANJI-ASCII spacing@>;
insert_skip:=no_skip;
end
else if subtype(p)=after then
begin ax:=qo("0");
if auto_xsp_code(ax)>=2 then
insert_skip:=after_schar else insert_skip:=no_skip;
end
else insert_skip:=no_skip;
end
@ @<Insert ligature surround spacing@>=
begin t:=lig_ptr(p);
if is_char_node(t) then
begin ax:=qo(character(t));
if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
while link(t)<>null do t:=link(t);
if is_char_node(t) then
begin ax:=qo(character(t));
if auto_xsp_code(ax)>=2 then
insert_skip:=after_schar else insert_skip:=no_skip;
end;
end;
end
@ @<Insert penalty or displace surround spacing@>=
begin if is_char_node(link(p)) then
begin q:=p; p:=link(p);
if font_dir[font(p)]<>dir_default then
begin KANJI(cx):=info(link(p));
if insert_skip=after_schar then @<Insert ASCII-KANJI spacing@>
else if insert_skip=after_wchar then @<Insert KANJI-KANJI spacing@>;
p:=link(p); insert_skip:=after_wchar;
end
else
begin ax:=qo(character(p));
if insert_skip=after_wchar then @<Insert KANJI-ASCII spacing@>;
if auto_xsp_code(ax)>=2 then
insert_skip:=after_schar else insert_skip:=no_skip;
end;
end
end
@ @<Insert ASCII-KANJI spacing@>=
begin
begin x:=get_inhibit_pos(cx,cur_pos);
if x<>no_entry then
if (inhibit_xsp_type(x)=inhibit_both)or
(inhibit_xsp_type(x)=inhibit_previous) then
do_ins:=false else do_ins:=true
else do_ins:=true;
end;
if do_ins then
begin z:=new_glue(s); subtype(z):=xkanji_skip_code+1;
link(z):=link(q); link(q):=z; q:=z;
end;
end
@ @<Insert KANJI-ASCII spacing@>=
begin if (auto_xsp_code(ax) mod 2)=1 then
begin x:=get_inhibit_pos(cx,cur_pos);
if x<>no_entry then
if (inhibit_xsp_type(x)=inhibit_both)or
(inhibit_xsp_type(x)=inhibit_after) then
do_ins:=false else do_ins:=true
else do_ins:=true;
end
else do_ins:=false;
if do_ins then
begin z:=new_glue(s); subtype(z):=xkanji_skip_code+1;
link(z):=link(q); link(q):=z; q:=z;
end;
end
@ @<Insert KANJI-KANJI spacing@>=
begin z:=new_glue(u); subtype(z):=kanji_skip_code+1;
link(z):=link(q); link(q):=z; q:=z;
end
@ @<Append KANJI-KANJI spacing@>=
begin z:=new_glue(u); subtype(z):=kanji_skip_code+1;
link(z):=link(p); link(p):=z; p:=link(z); q:=z;
end
@ @<Make |jchr_widow_penalty| node@>=
begin q:=v; p:=link(v);
if is_char_node(v)and(font_dir[font(v)]<>dir_default) then
begin q:=p; p:=link(p);
end;
t:=q; s:=null;
@<Seek list and make |t| pointing widow penalty position@>;
if s<>null then
begin s:=link(t);
if not is_char_node(s)and(type(s)=penalty_node) then
penalty(s):=penalty(s)+jchr_widow_penalty
else if jchr_widow_penalty<>0 then
begin s:=new_penalty(jchr_widow_penalty); subtype(s):=widow_pena;
link(s):=link(t); link(t):=s; t:=link(s);
while(not is_char_node(t)) do
begin if (type(t)=glue_node)or(type(t)=kern_node) then goto exit;
t:=link(t);
end;
z:=new_glue(u); subtype(z):=kanji_skip_code+1;
link(z):=link(s); link(s):=z;
end;
end;
end;
@ @<Seek list and make |t| pointing widow penalty position@>=
k:=0;
while(p<>null) do
begin if is_char_node(p) then
begin if font_dir[font(p)]<>dir_default then
begin KANJI(cx):=info(link(p)); i:=kcat_code(kcatcodekey(cx)); k:=0;
if (i=kanji)or(i=kana) then begin t:=q; s:=p; end;
p:=link(p); q:=p;
end
else begin k:=k+1;
if k>1 then begin q:=p; s:=null; end;
end;
end
else begin case type(p) of
penalty_node,mark_node,adjust_node,whatsit_node,
glue_node,kern_node,math_node,disp_node:
do_nothing;
othercases begin q:=p; s:=null; end;
endcases;
end;
p:=link(p);
end
@ @<Declare procedures needed in |hlist_out|, |vlist_out|@>=
procedure dir_out;
var @!this_box: pointer; {pointer to containing box}
begin this_box:=temp_ptr;
temp_ptr:=list_ptr(this_box);
if (type(temp_ptr)<>hlist_node)and(type(temp_ptr)<>vlist_node) then
confusion("dir_out");
case abs(box_dir(this_box)) of
dir_yoko:
case abs(box_dir(temp_ptr)) of
dir_tate: {Tate in Yoko}
begin cur_v:=cur_v-height(this_box); cur_h:=cur_h+depth(temp_ptr) end;
dir_dtou: {DtoU in Yoko}
begin cur_v:=cur_v+depth(this_box); cur_h:=cur_h+height(temp_ptr) end;
endcases;
dir_tate:
case abs(box_dir(temp_ptr)) of
dir_yoko: {Yoko in Tate}
begin cur_v:=cur_v+depth(this_box); cur_h:=cur_h+height(temp_ptr) end;
dir_dtou: {DtoU in Tate}
begin
cur_v:=cur_v+depth(this_box)-height(temp_ptr);
cur_h:=cur_h+width(temp_ptr)
end;
endcases;
dir_dtou:
case abs(box_dir(temp_ptr)) of
dir_yoko: {Yoko in DtoU}
begin cur_v:=cur_v-height(this_box); cur_h:=cur_h+depth(temp_ptr) end;
dir_tate: {Tate in DtoU}
begin
cur_v:=cur_v+depth(this_box)-height(temp_ptr);
cur_h:=cur_h+width(temp_ptr)
end;
endcases;
endcases;
cur_dir_hv:=abs(box_dir(temp_ptr));
if type(temp_ptr)=vlist_node then vlist_out@+else hlist_out;
end;
@ These routines are used to output diagnostic which related direction.
@ @<Basic printing procedures@>=
procedure print_dir(@!dir:eight_bits); {prints |dir| data}
begin if dir=dir_yoko then print_char("Y")
else if dir=dir_tate then print_char("T")
else if dir=dir_dtou then print_char("D")
end;
@#
procedure print_direction(@!d:integer); {print the direction represented by d}
begin case abs(d) of
dir_yoko: print("yoko");
dir_tate: print("tate");
dir_dtou: print("dtou");
end;
if d<0 then print("(math)");
print(" direction");
end;
@ The procedure |set_math_kchar| is same as |set_math_char| which is
written in section 48.
@<Declare act...@>=
procedure set_math_kchar(@!c:integer);
var p:pointer; {the new noad}
begin p:=new_noad; math_type(nucleus(p)):=math_jchar;
character(nucleus(p)):=qi(0);
math_kcode(p):=c; fam(nucleus(p)):=cur_jfam;
if font_dir[fam_fnt(fam(nucleus(p))+cur_size)]=dir_default then
begin print_err("Not two-byte family");
help1("IGNORE.");@/
error;
end;
type(p):=ord_noad;
link(tail):=p; tail:=p;
end;
@ This section is a part of |main_control|.
@<Append KANJI-character |cur_chr| ...@>=
if is_char_node(tail) then
begin if not( (last_jchr<>null) and (link(last_jchr)=tail) ) then
begin cx:=qo(character(tail)); @<Insert |post_break_penalty|@>;
end;
end
else if type(tail)=ligature_node then
begin cx:=qo(character(lig_char(tail))); @<Insert |post_break_penalty|@>;
end;
if direction=dir_tate then
begin if font_dir[main_f]=dir_tate then disp:=0
else if font_dir[main_f]=dir_yoko then disp:=t_baseline_shift-y_baseline_shift
else disp:=t_baseline_shift;
main_f:=cur_tfont;
end
else
begin if font_dir[main_f]=dir_yoko then disp:=0
else if font_dir[main_f]=dir_tate then disp:=y_baseline_shift-t_baseline_shift
else disp:=y_baseline_shift;
main_f:=cur_jfont;
end;
@<Append |disp_node| at end of displace area@>;
ins_kp:=false; ligature_present:=false;
cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
main_i:=orig_char_info(main_f)(qi(0));
goto main_loop_j+3;
@#
main_loop_j+1: space_factor:=1000;
if main_f<>null_font then
begin if not disp_called then
begin prev_node:=tail; tail_append(get_node(small_node_size));
type(tail):=disp_node; disp_dimen(tail):=0; disp_called:=true
end;
fast_get_avail(main_p); font(main_p):=main_f; character(main_p):=cur_l;
link(tail):=main_p; tail:=main_p; last_jchr:=tail;
fast_get_avail(main_p); info(main_p):=KANJI(cur_chr);
link(tail):=main_p; tail:=main_p;
cx:=cur_chr; @<Insert kinsoku penalty@>;
end;
ins_kp:=false;
again_2:
get_next;
main_i:=orig_char_info(main_f)(cur_l);
case cur_cmd of
kanji,kana,other_kchar: begin
cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f)); goto main_loop_j+3;
end;
letter,other_char: begin ins_kp:=true; cur_l:=qi(0); goto main_loop_j+3;
end;
endcases;
x_token;
case cur_cmd of
kanji,kana,other_kchar: cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
letter,other_char: begin ins_kp:=true; cur_l:=qi(0); end;
char_given: begin
if is_char_ascii(cur_chr) then
begin ins_kp:=true; cur_l:=qi(0);
end
else cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
end;
char_num: begin scan_char_num; cur_chr:=cur_val;
if is_char_ascii(cur_chr) then
begin ins_kp:=true; cur_l:=qi(0);
end
else cur_l:=qi(get_jfm_pos(KANJI(cur_chr),main_f));
end;
inhibit_glue: begin inhibit_glue_flag:=(cur_chr=0); goto again_2; end;
othercases begin ins_kp:=max_halfword;
cur_l:=qi(-1); cur_r:=non_char; lig_stack:=null;
end;
endcases;
@#
main_loop_j+3:
if ins_kp=true then @<Insert |pre_break_penalty| of |cur_chr|@>;
if main_f<>null_font then
begin @<Look ahead for glue or kerning@>;
end
else inhibit_glue_flag:=false;
if ins_kp=false then begin { Kanji -> Kanji }
goto main_loop_j+1;
end else if ins_kp=true then begin { Kanji -> Ascii }
{@@<Append |disp_node| at begin of displace area@@>;}
ins_kp:=false; goto main_loop;
end else begin { Kanji -> cs }
{@@<Append |disp_node| at begin of displace area@@>;}
goto reswitch;
end;
@ @<Append |disp_node| at begin ...@>=
begin if not is_char_node(tail)and(type(tail)=disp_node) then
begin if prev_disp=disp then
begin free_node(tail,small_node_size); tail:=prev_node; link(tail):=null;
end
else disp_dimen(tail):=disp;
end
else
if disp<>0 or not disp_called then
begin prev_node:=tail; tail_append(get_node(small_node_size));
type(tail):=disp_node; disp_dimen(tail):=disp; prev_disp:=disp;
disp_called:=true
end;
end;
@ @<Append |disp_node| at end ...@>=
if disp<>0 then
begin if not is_char_node(tail)and(type(tail)=disp_node) then
begin disp_dimen(tail):=0;
end
else
begin prev_node:=tail; tail_append(get_node(small_node_size));
type(tail):=disp_node; disp_dimen(tail):=0; prev_disp:=disp;
disp_called:=true
end;
end;
@ @<Look ahead for glue or kerning@>=
cur_q:=tail;
if inhibit_glue_flag<>true then
begin
if cur_l<qi(0) then cur_l:=qi(0) else inhibit_glue_flag:=false;
if (tail=link(head))and(not is_char_node(tail))and(type(tail)=disp_node) then
goto skip_loop
else begin if char_tag(main_i)=gk_tag then
begin main_k:=glue_kern_start(main_f)(main_i);
main_j:=font_info[main_k].qqqq;
if skip_byte(main_j)>stop_flag then {huge glue/kern table rearranged}
begin main_k:=glue_kern_restart(main_f)(main_j);
main_j:=font_info[main_k].qqqq;
end;
loop@+begin if next_char(main_j)=cur_l then if skip_byte(main_j)<=stop_flag then
begin if op_byte(main_j)<kern_flag then
begin gp:=font_glue[main_f]; cur_r:=rem_byte(main_j);
if gp<>null then
begin while((type(gp)<>cur_r)and(link(gp)<>null)) do gp:=link(gp);
gq:=glue_ptr(gp);
end
else
begin gp:=get_node(small_node_size); font_glue[main_f]:=gp;
gq:=null;
end;
if gq=null then
begin type(gp):=cur_r; gq:=new_spec(zero_glue);
glue_ptr(gp):=gq;
main_k:=exten_base[main_f]+qi((qo(cur_r))*3);
width(gq):=font_info[main_k].sc;
stretch(gq):=font_info[main_k+1].sc;
shrink(gq):=font_info[main_k+2].sc;
add_glue_ref(gq); link(gp):=get_node(small_node_size);
gp:=link(gp); glue_ptr(gp):=null; link(gp):=null;
end;
tail_append(new_glue(gq)); subtype(tail):=jfm_skip+1;
goto skip_loop;
end
else begin
tail_append(new_kern(char_kern(main_f)(main_j)));
goto skip_loop;
end;
end;
if skip_byte(main_j)>=stop_flag then goto skip_loop;
main_k:=main_k+qo(skip_byte(main_j))+1; {SKIP property}
main_j:=font_info[main_k].qqqq;
end;
end;
end;
end
else
begin
if cur_l<qi(0) then cur_l:=qi(0) else inhibit_glue_flag:=false;
end;
skip_loop: do_nothing;
@ @<Basic printing...@>=
procedure print_kanji(@!s:KANJI_code); {prints a single character}
begin
if s>@"FF then
begin print_char(@"100+Hi(s)); print_char(@"100+Lo(s));
end else print_char(s);
end;
@ This procedure changes the direction of the page, if |page_contents|
is |empty| and ``recent contributions'' does not contain any boxes,
rules nor insertions.
@<Declare act...@>=
procedure change_page_direction(@!d: halfword);
label done;
var p: pointer; flag:boolean;
begin flag:=(page_contents=empty);
if flag and (head<>tail) then begin
p:=link(head);
while p<>null do
case type(p) of
hlist_node,vlist_node,dir_node,rule_node,ins_node:
begin flag:=false; goto done; end;
{ |glue_node|, |kern_node|, |penalty_node| are discarded }
othercases p:=link(p);
endcases;
done: do_nothing;
end;
if flag then begin direction:=d; page_dir:=d; end
else begin
print_err("Use `"); print_cmd_chr(cur_cmd,d);
print("' at top of the page");
help3("You can change the direction of the page only when")
("the current page and recent contributions consist of only")
("marks and whatsits."); error;
end;
end;
@ This procedure is used in printing the second line in showing contexts.
This part is not read by |get_next| yet, so we don't know which bytes
are part of Japaense characters when the procedure is called.
@<Basic printing...@>=
procedure print_unread_buffer_with_ptenc(@!f, @!l: integer);
{ print |buffer[f..l-1]| with code conversion }
var @!i,@!j: pool_pointer; @!p: integer;
begin
i:=f;
while i<l do begin
p:=multistrlen(ustringcast(buffer), l, i);
if p<>1 then
begin for j:=i to i+p-1 do
print_char(@"100+buffer[j]);
i:=i+p; end
else begin print(buffer[i]); incr(i); end;
end;
end;
@* \[56] System-dependent changes.
@z
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