@^Modified for handling DBCS characters@>
@z
-%% line 7432
@x
begin c:=buffer[k+1]; @+if c<@'200 then {yes, one is indeed present}
begin d:=2;
begin d:=2; expand_char:=true;
@z
-%% line 7451
@x
@ @<Scan ahead in the buffer...@>=
begin repeat cur_chr:=buffer[k]; cat:=cat_code(cur_chr); incr(k);
begin repeat get_wchar(k); cat:=get_cat_code(cur_chr);
@z
-%% line 7455
@x
if cat<>letter then decr(k);
{now |k| points to first nonletter}
if k>loc+1 and not (k = loc+2 and first_control_char > 255) then {multiletter control sequence has been scanned}
@z
-%% line 7477
@x
else begin cur_cmd:=t div @'400; cur_chr:=t mod @'400;
@y
else begin cur_cmd:=t div @"10000; cur_chr:=t mod @"10000;
@z
-%% line 7619
@x
if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
@y
if cur_cs=0 then cur_tok:=(cur_cmd*@"10000)+cur_chr
@z
-%% line 7763
@x
buffer[j]:=info(p) mod @'400; incr(j); p:=link(p);
@y
p:=link(p); {fix this for 2-byte code}
@z
-%% line 7825
@x
done: if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
@y
done: if cur_cs=0 then cur_tok:=(cur_cmd*@"10000)+cur_chr
@z
-%% line 7837
@x
if cur_cs=0 then cur_tok:=(cur_cmd*@'400)+cur_chr
@y
if cur_cs=0 then cur_tok:=(cur_cmd*@"10000)+cur_chr
@z
-%% line 8348
@x
toks_register,assign_toks,def_family,set_font,def_font: @<Fetch a token list or
font identifier, provided that |level=tok_val|@>;
@<Fetch a token list or font identifier, provided that |level=tok_val|@>;
@z
-%% line 8350
@x
assign_int: scanned_result(eqtb[m].int)(int_val);
@y
pux_get_int:@<scan \PUTeX\ internal values@>;
@z
-%% line 8360
@x
char_given,math_given: scanned_result(cur_chr)(int_val);
@y
char_given,math_given,pux_char_given: scanned_result(cur_chr)(int_val);
@z
-%% line 8371
@x
@ @<Fetch a character code from some table@>=
begin scan_char_num;
scan_char_num;
@z
-%% line 8541
@x
begin scan_font_ident;
if m=0 then scanned_result(hyphen_char[cur_val])(int_val)
end
@z
-%% line 8672
@x
@d octal_token=other_token+"'" {apostrophe, indicates an octal constant}
@d hex_token=other_token+"""" {double quote, indicates a hex constant}
@d continental_point_token==(other_token+",") {decimal point, Eurostyle}
@z
-%% line 8732
@x
if cur_val>255 then
@y
if cur_val>65535 then
@z
-%% line 8761
@x
@d zero_token=other_token+"0" {zero, the smallest digit}
@d A_token=letter_token+"A" {the smallest special hex digit}
@d other_A_token==(other_token+"A") {special hex digit of type |other_char|}
@z
-%% line 9102
@x
`\.{height}' or `\.{width}' or `\.{depth}' specifications are
found (in any order).
just append declarations of scanning routines for PUTeX.
@z
-%% line 9122
@x
if scan_keyword("depth") then
@.depth@>
@<PUTeX basic scanning routines@>@;
@z
-%% line 9143
@x
var p:pointer; {tail of the token list}
@!q:pointer; {new node being added to the token list via |store_new_token|}
end;
@z
-%% line 9164
@x
containing something like `\.{-3.0pt minus 0.5fill}'.
@y
@z
-%% line 9170
@x
begin get_x_token; scan_something_internal(tok_val,false);
@y
begin get_x_token; char_val_flag:=false; scan_something_internal(tok_val,false);
@z
-%% line 9174
@x
int_val:print_int(cur_val);
@y
else print_int(cur_val);
@z
-%% line 9211
@x
@d font_name_code=4 {command code for \.{\\fontname}}
@d job_name_code=5 {command code for \.{\\jobname}}
@d upper_cdigit_base=25 {uppercase style Chinese number}
@z
-%% line 9225
@x
primitive("jobname",convert,job_name_code);@/
@!@:job_name_}{\.{\\jobname} primitive@>
@!@:cjknameseq_}{\.{\\PUXnameseq} primitive@>
@z
-%% line 9233
@x
meaning_code: print_esc("meaning");
font_name_code: print_esc("fontname");
nameseq_code: print_esc("PUXnameseq");
@z
-%% line 9245
@x
@!save_scanner_status:small_number; {|scanner_status| upon entry}
@!b:pool_pointer; {base of temporary string}
begin c:=cur_chr; @<Scan the argument for command |c|@>;
@z
-%% line 9254
@x
case c of
number_code,roman_numeral_code: scan_int;
nameseq_code:@<scan a CJK name sequence number@>;
@z
-%% line 9266
@x
roman_numeral_code: print_roman_int(cur_val);
string_code:if cur_cs<>0 then sprint_cs(cur_cs)
else print_char(cur_chr);
@z
-%% line 9270
@x
font_name_code: begin print(font_name[cur_val]);
if font_size[cur_val]<>font_dsize[cur_val] then
end;
@z
-%% line 9814
@x
if (cur_cmd>active_char)or(cur_chr>255) then {not a character}
begin m:=relax; n:=256;
begin m:=relax; n:=256; {values other than 256 will break latex.fmt}
@z
-%% line
@x
if (cur_cmd>active_char)or(cur_chr>255) then
begin cur_cmd:=relax; cur_chr:=256;
end;
@z
-%% line 10283
@x
pack_job_name(".dvi");
while not b_open_out(dvi_file) do
prompt_file_name("file name for output",".cdi");
@z
-%% line 11210
@x
@ Before we forget about the format of these tables, let's deal with two
of \TeX's basic scanning routines related to font information.
else if cur_cmd=set_font or cur_cmd=set_cfont then f:=cur_chr
@z
-%% line 11406
@x
bytes long, so it is in the range |0<=c<65536|. \TeX82 never uses this
command, but it should come in handy for extensions of \TeX\ that deal
a CJK two-byte character.
@z
-%% line 11612
@x
\yskip\hang|pre| 247 |i[1]| |num[4]| |den[4]| |mag[4]| |k[1]| |x[k]|.
Beginning of the preamble; this must come at the very beginning of the
file. Parameters |i|, |c|, |num|, |den|, |mag|, |k|, and |x| are explained below.
@z
-%% line 11618
@x
\yskip\hang|post_post| 249. Ending of the postamble, see below.
\yskip\noindent Commands 252--255 are undefined at the present time.
@z
-%% line
@x
@d set1=128 {typeset a character and move right}
@y
@d set4=131 {typeset a four-byte CJK character and move right}
@z
-%% line 11648
@x
@d post_post=249 {postamble ending}
@y
@d cfnt_def=251 {define the meaning of a chinese font}
@z
-%% line 11652
@x
$$\hbox{|@!i[1]| |@!num[4]| |@!den[4]| |@!mag[4]| |@!k[1]| |@!x[k]|.}$$
The |i| byte identifies \.{DVI} format; currently this byte is always set
2: GBK (Simplified Chinese used in PRC and Singapore)
@z
-%% line 11680
@x
@d id_byte=2 {identifies the kind of \.{DVI} files described here}
@y
@d id_byte=100 {identifies the kind of \.{DVI} files described here}
@z
-%% line 11958
@x
@ Here's a procedure that outputs a font definition. Since \TeX82 uses at
most 256 different fonts per job, |fnt_def1| is always used as the command code.
TCW: the procedure |dvi_cfont_def| outputs a chinese font definition.
@z
-%% line 11973
@x
@<Output the font name whose internal number is |f|@>;
end;
end;
@z
-%% line 12273
@x
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_cf:=null_cfont;
@z
-%% line 12276
@x
begin dvi_out(pre); dvi_out(id_byte); {output the preamble}
@y
doc_charset:=pux_charset; dvi_out(doc_charset); {output the preamble}
@z
-%% line 12281
@x
print(" TeX output "); print_int(year); print_char(".");
@y
print(" PUTeX output "); print_int(year); print_char(".");
@z
-%% line 12351 MMM
+%% MMM
@x
@<Output node |p| for |hlist_out|...@>=
reswitch: if is_char_node(p) then
and move to the next node@>
@z
-%% line 12774
@x
dvi_out(post_post); dvi_four(last_bop); dvi_out(id_byte);@/
@y
dvi_out(post_post); dvi_four(last_bop); dvi_out(doc_charset); dvi_out(id_byte);@/
@z
-%% line 12974
@x
@<Incorporate character dimensions into the dimensions of the hbox...@>=
begin f:=font(p); i:=char_info(f)(character(p)); hd:=height_depth(i);
end
@z
-%% line 13084
@x
font_in_short_display:=null_font; short_display(list_ptr(r)); print_ln;@/
@y
short_display(list_ptr(r)); print_ln;@/
@z
-%% line 14062
@x
if (is_char_node(p))and(link(p)=null) then
begin f:=font(p); v:=char_width(f)(char_info(f)(character(p)));
end;
@z
-%% line 16559
@x
if is_char_node(v) then
begin f:=font(v);
end
@z
-%% line 16564
@x
ligature_node: begin f:=font(lig_char(v));@/
break_width[1]:=@|break_width[1]-
end;
@z
-%% line 16575
@x
if is_char_node(s) then
begin f:=font(s);
end
@z
-%% line 16580
@x
ligature_node: begin f:=font(lig_char(s));
break_width[1]:=break_width[1]+
end;
@z
-%% line 17017
@x
font_in_short_display:=null_font
@y
cfont_in_short_display:=null_cfont; font_in_short_display:=null_font
@z
-%% line 17060
@x
ligature_node: begin f:=font(lig_char(cur_p));
act_width:=act_width+char_width(f)(char_info(f)(character(lig_char(cur_p))));
end;
@z
-%% line 17083
@x
repeat f:=font(cur_p);
act_width:=act_width+char_width(f)(char_info(f)(character(cur_p)));
end
@z
-%% line 17127
@x
if is_char_node(s) then
begin f:=font(s);
end
@z
-%% line 17132
@x
ligature_node: begin f:=font(lig_char(s));
disc_width:=disc_width+
end;
@z
-%% line 17143
@x
if is_char_node(s) then
begin f:=font(s);
end
@z
-%% line 17148
@x
ligature_node: begin f:=font(lig_char(s));
act_width:=act_width+
end;
@z
-%% line 18265
@x
char_num: begin scan_char_num; cur_chr:=cur_val; cur_cmd:=char_given;
goto reswitch;
spacer,right_brace: begin if n>1 then @<Enter a hyphenation exception@>;
@z
-%% line 18262
@x
if cur_chr="-" then @<Append the value |n| to list |p|@>
else begin if lc_code(cur_chr)=0 then
end
@z
-%% line 20002
@x
@d main_loop=70 {go here to typeset a string of consecutive characters}
@y
@d fetch_next_tok=134 {go here to fetch next token}
@z
-%% line 20011
@x
@t\4@>@<Declare the procedure called |handle_right_brace|@>@;
procedure main_control; {governs \TeX's activities}
procedure main_control; {governs \TeX's activities}
@z
-%% line 20013
@x
label big_switch,reswitch,main_loop,main_loop_wrapup,
@y
main_loop_wrapup,main_loop_lookahead+2,
@z
-%% line 20018
@x
var@!t:integer; {general-purpose temporary variable}
begin if every_job<>null then begin_token_list(every_job,every_job_text);
big_switch: get_x_token;@/
@z
-%% line 20023
@x
hmode+letter,hmode+other_char,hmode+char_given: goto main_loop;
@y
hmode+pux_char_given: goto main_loop_wchar;
@z
-%% line 20024
@x
hmode+char_num: begin scan_char_num; cur_chr:=cur_val; goto main_loop;@+end;
hmode+no_boundary: begin get_x_token;
end;
@z
-%% line 20030
@x
hmode+spacer: if space_factor=1000 then goto append_normal_space
else app_space;
@t\4@>@<Cases of |main_control| that handle spacer@>@;
@z
-%% line 20036
@x
main_loop:@<Append character |cur_chr| and the following characters (if~any)
@y
main_loop:@<Append character |cur_chr| and the following characters (if~any)
@z
-%% line 20100
@x
@d adjust_space_factor==@t@>@;@/
main_s:=sf_code(cur_chr);
else main_s:=1000;
@z
-%% line 20110
@x
adjust_space_factor;@/
main_f:=cur_font;
main_loop+1:adjust_space_factor; main_f:=cur_font;
@z
-%% line 20201
@x
get_next; {set only |cur_cmd| and |cur_chr|, for speed}
if cur_cmd=letter then goto main_loop_lookahead+1;
a cespace, or leave |lig_stack| empty if there's no character there@>
@z
-%% line 20313
@x
else temp_ptr:=new_param_glue(space_skip_code);
link(tail):=temp_ptr; tail:=temp_ptr;
if pux_xspace=0 then goto reswitch else goto big_switch
@z
-%% line 21031
@x
hbox_group: package(0);
adjusted_hbox_group: begin adjust_tail:=adjust_head; package(0);
end;
@z
-%% line 21078
@x
vmode+start_par: new_graf(cur_chr>0);
vmode+letter,vmode+other_char,vmode+char_num,vmode+char_given,
vmode+math_shift,vmode+un_hbox,vmode+vrule,
@z
-%% line 21345
@x
begin if tail<>head then
begin if is_char_node(tail) then p:=tail
begin if is_char_node(tail) and not is_wchar_node(tail) then p:=tail
@z
-%% line 21775
@x
reswitch: if is_char_node(p) then
begin f:=font(p); d:=char_width(f)(char_info(f)(character(p)));
end;
@z
-%% line 21864
@x
letter,other_char,char_given: begin c:=ho(math_code(cur_chr));
if c=@'100000 then
end;
@z
-%% line 21870
@x
char_num: begin scan_char_num; cur_chr:=cur_val; cur_cmd:=char_given;
goto reswitch;
end;
@z
-%% line 21909
@x
mmode+letter,mmode+other_char,mmode+char_given:
set_math_char(ho(math_code(cur_chr)));
set_math_char(ho(math_code(cur_chr)));
@z
-%% line 22019
@x
letter,other_char: cur_val:=del_code(cur_chr);
@y
cur_val:=del_code(cur_chr);
@z
-%% line 22376
@x
mmode+math_shift: if cur_group=math_shift_group then after_math
else off_save;
else off_save;
@z
-%% line 22441
@x
tail_append(new_math(math_surround,after));
space_factor:=1000; unsave;
end
@z
-%% line 22680
@x
any_mode(set_font),
any_mode(def_font),
any_mode(pux_dump_font_info),
@z
-%% line 22699
@x
@t\4@>@<Declare subprocedures for |prefixed_command|@>@t@>@;@/
procedure prefixed_command;
procedure prefixed_command;
@z
-%% line 22707
@x
@!n:integer; {ditto}
@!e:boolean; {should a definition be expanded? or was \.{\\let} not done?}
@<Other variables used by the procedure |prefixed_command|@>@;
@z
-%% line 22789
@x
set_font: define(cur_font_loc,data,cur_chr);
@y
end;
@z
-%% line 22843
@x
@d toks_def_code=6 {|shorthand_def| for \.{\\toksdef}}
@y
@d pux_char_def_code=7 {|shorthand_def| for \.{\\PUXchardef}}
@z
-%% line 22858
@x
primitive("toksdef",shorthand_def,toks_def_code);@/
@!@:toks_def_}{\.{\\toksdef} primitive@>
@!@:pux_char_def_}{\.{\\toksdef} primitive@>
@z
-%% line 22868
@x
mu_skip_def_code: print_esc("muskipdef");
char_sub_def_code: print_esc("charsubdef");
othercases print_esc("PUXchardef")
@z
-%% line 22884
@x
case n of
char_def_code: begin scan_char_num; define(p,char_given,cur_val);
othercases begin scan_eight_bit_int;
@z
-%% line 22986
@x
primitive("catcode",def_code,cat_code_base);
@!@:cat_code_}{\.{\\catcode} primitive@>
@!@:pux_local_names_base_}{\.{\\PUXlocalnames} primitive@>
@z
-%% line 23007
@x
else if chr_code=math_code_base then print_esc("mathcode")
@y
else if chr_code=math_code_base then print_esc("mathcode")
@z
-%% line 23019
@x
p:=cur_chr; scan_char_num; p:=p+cur_val; scan_optional_equals;
scan_int;
else scan_int;
@z
-%% line 23037
@x
else if cur_chr=math_code_base then n:=@'100000
@y
else if cur_chr=math_code_base then n:=@'100000
@z
-%% line 23160
@x
set_box: begin scan_eight_bit_int;
if global then n:=256+cur_val@+else n:=cur_val;
else begin print_err("Improper "); print_esc("setbox");
@z
-%% line 23321
@x
procedure new_font(@!a:small_number);
label common_ending;
end;
@z
-%% line 23586
@x
@!t:halfword; {token}
@!c:eight_bits; {character code}
begin b:=cur_chr; p:=scan_toks(false,false); p:=link(def_ref);
@z
-%% line 23601
@x
@<Change the case of the token in |p|, if a change is appropriate@>=
t:=info(p);
end
@z
-%% line 23750
@x
@<Dump the font information@>;
@y
@<Dump the CJK font information@>;
@z
-%% line 23779
@x
@<Undump the font information@>;
@y
@<Undump the CJK font information@>;
@z
-%% line 24496
@x
15: begin font_in_short_display:=null_font; short_display(n);
@y
15: begin font_in_short_display:=null_font; cfont_in_short_display:=null_cfont; short_display(n);
@z
-%% line 24967
@x
@* \[55] Index.
@y
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