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-% dvitype.ch for C compilation with web2c.
-%
-% 04/04/83 (PC) Merged with Pavel's change file and made to work with the
-% version 1.0 of DVItype released with version 0.95 of TeX in
-% February, 1983.
-% 04/18/83 (PC) Added changes to module 47 so that it would work the same
-% when input was a file (or pipe) as with a terminal.
-% 06/29/83 (HWT) Brought up to version 1.1 as released with version 0.99 of
-% TeX, with new change file format
-% 07/28/83 (HWT) Brought up to version 2 as released with version 0.999.
-% Only the banner changes.
-% 11/21/83 (HWT) Brought up to version 2.2 as released with version 1.0.
-% 02/19/84 (HWT) Made it use the TEXFONTS environment variable.
-% 03/23/84 (HWT) Brought up to version 2.3.
-% 07/11/84 (HWT) Brought up to version 2.6 as released with version 1.1.
-% 11/07/84 (ETM) Brought up to version 2.7 as released with version 1.2.
-% 03/09/88 (ETM) Brought up to version 2.9
-% 03/16/88 (ETM) Converted for use with WEB to C.
-% 11/30/89 (KB) To version 3.
-% 01/16/90 (SR) To version 3.2.
-% 09/27/95 (KA) Supporting ASCII pTeX
-% (more recent changes in the ChangeLog)
-
-@x [0] WEAVE: print changes only.
-\pageno=\contentspagenumber \advance\pageno by 1
-@y
-\pageno=\contentspagenumber \advance\pageno by 1
-\let\maybe=\iffalse
-\def\title{DVI$\,$\lowercase{type} changes for C}
-@z
-
-@x
-@d banner=='This is DVItype, Version 3.6' {printed when the program starts}
-@y
-@d banner=='This is PDVItype, Version 3.6-p0.4'
- {printed when the program starts}
-@z
-
-% [3] Specify the output file to simplify web2c, and don't print the
-% banner until later.
-@x
-@d print(#)==write(#)
-@d print_ln(#)==write_ln(#)
-@y
-@d print(#)==write(stdout, #)
-@d print_ln(#)==write_ln(stdout, #)
-@z
-
-@x
-procedure initialize; {this procedure gets things started properly}
- var i:integer; {loop index for initializations}
- begin print_ln(banner);@/
-@y
-@<Define |parse_arguments|@>
-procedure initialize; {this procedure gets things started properly}
- var i:integer; {loop index for initializations}
- begin
- kpse_set_progname (argv[0]);
- parse_arguments;
- print (banner);
- print_ln (version_string);
-@z
-
-@x [5] Allow more fonts, more widths, no arbitrary filename length.
-@!max_fonts=100; {maximum number of distinct fonts per \.{DVI} file}
-@!max_widths=10000; {maximum number of different characters among all fonts}
-@y
-@!max_fonts=500; {maximum number of distinct fonts per \.{DVI} file}
-@!max_widths=25000; {maximum number of different characters among all fonts}
-@z
-@x
-@!name_size=1000; {total length of all font file names}
-@!name_length=50; {a file name shouldn't be longer than this}
-@y
-@!name_size=10000; {total length of all font file names}
-@z
-
-@x [7] Remove non-local goto.
-@d abort(#)==begin print(' ',#); jump_out;
- end
-@d bad_dvi(#)==abort('Bad DVI file: ',#,'!')
-@.Bad DVI file@>
-
-@p procedure jump_out;
-begin goto final_end;
-end;
-@y
-@d jump_out==uexit(1)
-@d abort(#)==begin write_ln(stderr,#); jump_out; end
-@d bad_dvi(#)==abort('Bad DVI file: ',#,'!')
-@.Bad DVI file@>
-@z
-
-@x [8] Permissive input.
-@!ASCII_code=" ".."~"; {a subrange of the integers}
-@y
-@!ASCII_code=0..255; {a subrange of the integers}
-@z
-
-% [9] The text_char type is used as an array index into `xord'. The
-% default type `char' produces signed integers, which are bad array
-% indices in C.
-@x
-@d text_char == char {the data type of characters in text files}
-@d first_text_char=0 {ordinal number of the smallest element of |text_char|}
-@d last_text_char=127 {ordinal number of the largest element of |text_char|}
-@y
-@d text_char == ASCII_code {the data type of characters in text files}
-@d first_text_char=0 {ordinal number of the smallest element of |text_char|}
-@d last_text_char=255 {ordinal number of the largest element of |text_char|}
-@z
-
-@x
-for i:=@'177 to 255 do xchr[i]:='?';
-@y
-for i:=@'177 to 255 do xchr[i]:=i;
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@d undefined_commands==250,251,252,253,254,255
-@y
-@d dir=255 {pTeX direction}
-@d undefined_commands==250,251,252,253,254
-@z
-
-@x
-@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 ptex_id_byte=3 {identifies the kind of pTeX \.{DVI} files described here}
-@z
-
-@x [23] Fix up opening the files.
-@p procedure open_dvi_file; {prepares to read packed bytes in |dvi_file|}
-begin reset(dvi_file);
-cur_loc:=0;
-end;
-@#
-procedure open_tfm_file; {prepares to read packed bytes in |tfm_file|}
-begin reset(tfm_file,cur_name);
-end;
-@y
-@p procedure open_dvi_file; {prepares to read packed bytes in |dvi_file|}
-begin
- cur_name := extend_filename (cmdline (optind), 'dvi');
- resetbin (dvi_file, cur_name);
- cur_loc := 0;
-end;
-@#
-procedure open_tfm_file; {prepares to read packed bytes in |tfm_file|}
-var full_name: ^char;
-begin
- full_name := kpse_find_tfm (cur_name);
- if full_name then begin
- tfm_file := fopen (full_name, FOPEN_RBIN_MODE);
- end else begin
- tfm_file := nil;
- end;
-end;
-@z
-
-@x [24] No arbitrary limit on filename length.
-@!cur_name:packed array[1..name_length] of char; {external name,
- with no lower case letters}
-@y
-@!cur_name:^char; {external name}
-@z
-
-@x [27] Make get_n_bytes routines work with 16-bit math.
-get_two_bytes:=a*256+b;
-@y
-get_two_bytes:=a*intcast(256)+b;
-@z
-@x
-get_three_bytes:=(a*256+b)*256+c;
-@y
-get_three_bytes:=(a*intcast(256)+b)*256+c;
-@z
-@x
-if a<128 then signed_trio:=(a*256+b)*256+c
-else signed_trio:=((a-256)*256+b)*256+c;
-@y
-if a<128 then signed_trio:=(a*intcast(256)+b)*256+c
-else signed_trio:=((a-intcast(256))*256+b)*256+c;
-@z
-@x
-if a<128 then signed_quad:=((a*256+b)*256+c)*256+d
-else signed_quad:=(((a-256)*256+b)*256+c)*256+d;
-@y
-if a<128 then signed_quad:=((a*intcast(256)+b)*256+c)*256+d
-else signed_quad:=(((a-256)*intcast(256)+b)*256+c)*256+d;
-@z
-
-@x [28] dvi_length and move_to_byte.
-@p function dvi_length:integer;
-begin set_pos(dvi_file,-1); dvi_length:=cur_pos(dvi_file);
-end;
-@#
-procedure move_to_byte(n:integer);
-begin set_pos(dvi_file,n); cur_loc:=n;
-end;
-@y
-@p function dvi_length:integer;
-begin
- xfseek (dvi_file, 0, 2, 'dvitype');
- cur_loc := xftell(dvi_file, 'dvitype');
- dvi_length := cur_loc;
-end;
-@#
-procedure move_to_byte(n:integer);
-begin
- xfseek (dvi_file, n, 0, 'dvitype');
- cur_loc:=n;
-end;
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% JFM and pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@!width_ptr:0..max_widths; {the number of known character widths}
-@y
-@!width_ptr:0..max_widths; {the number of known character widths}
-@!fnt_jfm_p:array [0..max_fonts] of boolean;
-@!jfm_char_code:array [0..max_widths] of integer;
-@!jfm_char_type:array [0..max_widths] of integer;
-@!jfm_char_font:array [0..max_widths] of integer;
-@!jfm_char_type_count:integer;
-@!cur_jfm_char_type:integer;
-
-@ @d jfm_hash_size=347
-
-@ @<Types...@>=
-@!jfm_char_type_hash_value=0..jfm_hash_size-1;
-
-@ @<Glob...@>=
-@!jfm_char_type_hash_table:array[jfm_char_type_hash_value] of integer;
- { first pointer to character information. 0 means null pointer. }
-@!jfm_char_type_hash_link:array[0..max_widths] of integer;
- { next pointer to character information. 0 means null pointer. }
-
-@ @<Set init...@>=
-for i:=0 to jfm_hash_size-1 do
- jfm_char_type_hash_table[i] := 0;
-jfm_char_type[0]:=0;
-jfm_char_type_count:=1;
-
-@ Refer char_type table.
-
-@p function get_jfm_char_type(@!fntn:integer;@!jfmc:integer):integer;
- var p:integer; ct:integer;
-begin
- p:=jfm_char_type_hash_table[(jfmc+fntn) mod jfm_hash_size];
- ct:=0; { default char_type is 0 }
- while p <> 0 do
- if (jfm_char_code[p] = jfmc) and (jfm_char_font[p] = fntn) then
- begin ct:=jfm_char_type[p]; p:=0; end
- else
- p:=jfm_char_type_hash_link[p];
- get_jfm_char_type:=ct;
-end;
-
-@ @<Glob...@>=
-@!ptex_p:boolean;
-@!dd:eight_bits;
-@!ddstack:array [0..stack_size] of eight_bits;
-@z
-
-@x
-@!lh:integer; {length of the header data, in four-byte words}
-@y
-@!lh:integer; {length of the header data, in four-byte words}
-@!nt:integer;
-@!jfm_h:integer;
-@z
-
-@x [35] Make 16-bit TFM calculations work. and JFM by K.A.
-read_tfm_word; lh:=b2*256+b3;
-read_tfm_word; font_bc[nf]:=b0*256+b1; font_ec[nf]:=b2*256+b3;
-@y
-read_tfm_word; lh:=b0*intcast(256)+b1;
-if (lh = 11) or (lh = 9) then
- begin
- print(' (JFM');
- fnt_jfm_p[nf] := true;
- if lh = 9 then print(' tate');
- print(')');
- nt:=b2*intcast(256)+b3;
- read_tfm_word;
- end
-else
- begin
- nt:=0;
- fnt_jfm_p[nf] := false;
- end;
-lh:=b2*intcast(256)+b3;
-read_tfm_word; font_bc[nf]:=b0*intcast(256)+b1; font_ec[nf]:=b2*intcast(256)+b3;
-@z
-@x
- if b0<128 then tfm_check_sum:=((b0*256+b1)*256+b2)*256+b3
- else tfm_check_sum:=(((b0-256)*256+b1)*256+b2)*256+b3
-@y
- if b0<128 then tfm_check_sum:=((b0*intcast(256)+b1)*256+b2)*256+b3
- else tfm_check_sum:=(((b0-256)*intcast(256)+b1)*256+b2)*256+b3
-@z
-@x JFM
- tfm_design_size:=round(tfm_conv*(((b0*256+b1)*256+b2)*256+b3))
- else goto 9997;
- end;
-@y
- tfm_design_size:=round(tfm_conv*(((b0*256+b1)*256+b2)*256+b3))
- else goto 9997;
- end;
-for k:=1 to nt do
- begin
- read_tfm_word;
- jfm_char_code[jfm_char_type_count]:=b0*intcast(256)+b1;
- jfm_char_type[jfm_char_type_count]:=b2*intcast(256)+b3;
- jfm_char_font[jfm_char_type_count]:=nf;
- jfm_h:= { hash value }
- (jfm_char_code[jfm_char_type_count]+nf) mod jfm_hash_size;
- jfm_char_type_hash_link[jfm_char_type_count]:=
- jfm_char_type_hash_table[jfm_h];
- jfm_char_type_hash_table[jfm_h]:=jfm_char_type_count;
- jfm_char_type_count := jfm_char_type_count + 1
- end;
-@z
-
-@x [43] Initialize optional variables sooner.
-@ @<Set init...@>=
-out_mode:=the_works; max_pages:=1000000; start_vals:=0; start_there[0]:=false;
-@y
-@ Initializations are done sooner now.
-@z
-
-@x [45] No dialog.
-@ The |input_ln| routine waits for the user to type a line at his or her
-terminal; then it puts ASCII-code equivalents for the characters on that line
-into the |buffer| array. The |term_in| file is used for terminal input,
-and |term_out| for terminal output.
-@^system dependencies@>
-
-@<Glob...@>=
-@!buffer:array[0..terminal_line_length] of ASCII_code;
-@!term_in:text_file; {the terminal, considered as an input file}
-@!term_out:text_file; {the terminal, considered as an output file}
-@y
-@ No dialog.
-@z
-
-@x [47] No input_ln.
-@p procedure input_ln; {inputs a line from the terminal}
-var k:0..terminal_line_length;
-begin update_terminal; reset(term_in);
-if eoln(term_in) then read_ln(term_in);
-k:=0;
-while (k<terminal_line_length)and not eoln(term_in) do
- begin buffer[k]:=xord[term_in^]; incr(k); get(term_in);
- end;
-buffer[k]:=" ";
-end;
-@y
-@z
-
-@x [48] No dialog.
-@ The global variable |buf_ptr| is used while scanning each line of input;
-it points to the first unread character in |buffer|.
-
-@<Glob...@>=
-@!buf_ptr:0..terminal_line_length; {the number of characters read}
-@y
-@ No dialog.
-@z
-
-@x [49] No dialog.
-@ Here is a routine that scans a (possibly signed) integer and computes
-the decimal value. If no decimal integer starts at |buf_ptr|, the
-value 0 is returned. The integer should be less than $2^{31}$ in
-absolute value.
-
-@p function get_integer:integer;
-var x:integer; {accumulates the value}
-@!negative:boolean; {should the value be negated?}
-begin if buffer[buf_ptr]="-" then
- begin negative:=true; incr(buf_ptr);
- end
-else negative:=false;
-x:=0;
-while (buffer[buf_ptr]>="0")and(buffer[buf_ptr]<="9") do
- begin x:=10*x+buffer[buf_ptr]-"0"; incr(buf_ptr);
- end;
-if negative then get_integer:=-x @+ else get_integer:=x;
-end;
-
-@y
-@ No dialog.
-@z
-
-@x [50-55] No dialog.
-@ The selected options are put into global variables by the |dialog|
-procedure, which is called just as \.{DVItype} begins.
-@^system dependencies@>
-
-@p procedure dialog;
-label 1,2,3,4,5;
-var k:integer; {loop variable}
-begin rewrite(term_out); {prepare the terminal for output}
-write_ln(term_out,banner);
-@<Determine the desired |out_mode|@>;
-@<Determine the desired |start_count| values@>;
-@<Determine the desired |max_pages|@>;
-@<Determine the desired |resolution|@>;
-@<Determine the desired |new_mag|@>;
-@<Print all the selected options@>;
-end;
-
-@ @<Determine the desired |out_mode|@>=
-1: write(term_out,'Output level (default=4, ? for help): ');
-out_mode:=the_works; input_ln;
-if buffer[0]<>" " then
- if (buffer[0]>="0")and(buffer[0]<="4") then out_mode:=buffer[0]-"0"
- else begin write(term_out,'Type 4 for complete listing,');
- write(term_out,' 0 for errors and fonts only,');
- write_ln(term_out,' 1 or 2 or 3 for something in between.');
- goto 1;
- end
-
-@ @<Determine the desired |start...@>=
-2: write(term_out,'Starting page (default=*): ');
-start_vals:=0; start_there[0]:=false;
-input_ln; buf_ptr:=0; k:=0;
-if buffer[0]<>" " then
- repeat if buffer[buf_ptr]="*" then
- begin start_there[k]:=false; incr(buf_ptr);
- end
- else begin start_there[k]:=true; start_count[k]:=get_integer;
- end;
- if (k<9)and(buffer[buf_ptr]=".") then
- begin incr(k); incr(buf_ptr);
- end
- else if buffer[buf_ptr]=" " then start_vals:=k
- else begin write(term_out,'Type, e.g., 1.*.-5 to specify the ');
- write_ln(term_out,'first page with \count0=1, \count2=-5.');
- goto 2;
- end;
- until start_vals=k
-
-@ @<Determine the desired |max_pages|@>=
-3: write(term_out,'Maximum number of pages (default=1000000): ');
-max_pages:=1000000; input_ln; buf_ptr:=0;
-if buffer[0]<>" " then
- begin max_pages:=get_integer;
- if max_pages<=0 then
- begin write_ln(term_out,'Please type a positive number.');
- goto 3;
- end;
- end
-
-@ @<Determine the desired |resolution|@>=
-4: write(term_out,'Assumed device resolution');
-write(term_out,' in pixels per inch (default=300/1): ');
-resolution:=300.0; input_ln; buf_ptr:=0;
-if buffer[0]<>" " then
- begin k:=get_integer;
- if (k>0)and(buffer[buf_ptr]="/")and
- (buffer[buf_ptr+1]>"0")and(buffer[buf_ptr+1]<="9") then
- begin incr(buf_ptr); resolution:=k/get_integer;
- end
- else begin write(term_out,'Type a ratio of positive integers;');
- write_ln(term_out,' (1 pixel per mm would be 254/10).');
- goto 4;
- end;
- end
-
-@ @<Determine the desired |new_mag|@>=
-5: write(term_out,'New magnification (default=0 to keep the old one): ');
-new_mag:=0; input_ln; buf_ptr:=0;
-if buffer[0]<>" " then
- if (buffer[0]>="0")and(buffer[0]<="9") then new_mag:=get_integer
- else begin write(term_out,'Type a positive integer to override ');
- write_ln(term_out,'the magnification in the DVI file.');
- goto 5;
- end
-@y
-@ No dialog (50).
-@ No dialog (51).
-@ No dialog (52).
-@ No dialog (53).
-@ No dialog (54).
-@ No dialog (55).
-@z
-
-@x [56] Fix printing of floating point number.
-print_ln(' Resolution = ',resolution:12:8,' pixels per inch');
-if new_mag>0 then print_ln(' New magnification factor = ',new_mag/1000:8:3)
-@y
-print (' Resolution = ');
-print_real (resolution, 12, 8);
-print_ln (' pixels per inch');
-if new_mag > 0
-then begin
- print (' New magnification factor = ');
- print_real (new_mag / 1000.0, 8, 3);
- print_ln('')
-end
-@z
-
-@x [59] We use r for something else.
-@!r:0..name_length; {index into |cur_name|}
-@y
-@!r:0..name_size; {current filename length}
-@z
-
-@x [62] <Load the new font...> close the file when we're done
-if out_mode=errors_only then print_ln(' ');
-@y
-if out_mode=errors_only then print_ln(' ');
-if tfm_file then
- xfclose (tfm_file, cur_name); {should be the |kpse_find_tfm| result}
-free (cur_name); {We |xmalloc|'d this before we got called.}
-@z
-
-@x [64] Don't set default_directory_name.
-@d default_directory_name=='TeXfonts:' {change this to the correct name}
-@d default_directory_name_length=9 {change this to the correct length}
-
-@<Glob...@>=
-@!default_directory:packed array[1..default_directory_name_length] of char;
-@y
-Under Unix, users have a path searched for fonts, there's no single
-default directory.
-@z
-
-@x [65] Remove initialization of default_directory.
-@ @<Set init...@>=
-default_directory:=default_directory_name;
-@y
-@ (No initialization needs to be done. Keep this module to preserve
-numbering.)
-@z
-
-@x [66] Don't append `.tfm' here, and keep lowercase.
-@ The string |cur_name| is supposed to be set to the external name of the
-\.{TFM} file for the current font. This usually means that we need to
-prepend the name of the default directory, and
-to append the suffix `\.{.TFM}'. Furthermore, we change lower case letters
-to upper case, since |cur_name| is a \PASCAL\ string.
-@^system dependencies@>
-
-@<Move font name into the |cur_name| string@>=
-for k:=1 to name_length do cur_name[k]:=' ';
-if p=0 then
- begin for k:=1 to default_directory_name_length do
- cur_name[k]:=default_directory[k];
- r:=default_directory_name_length;
- end
-else r:=0;
-for k:=font_name[nf] to font_name[nf+1]-1 do
- begin incr(r);
- if r+4>name_length then
- abort('DVItype capacity exceeded (max font name length=',
- name_length:1,')!');
-@.DVItype capacity exceeded...@>
- if (names[k]>="a")and(names[k]<="z") then
- cur_name[r]:=xchr[names[k]-@'40]
- else cur_name[r]:=xchr[names[k]];
- end;
-cur_name[r+1]:='.'; cur_name[r+2]:='T'; cur_name[r+3]:='F'; cur_name[r+4]:='M'
-@y
-@ The string |cur_name| is supposed to be set to the external name of the
-\.{TFM} file for the current font. We do not impose a maximum limit
-here. It's too bad there is a limit on the total length of all
-filenames, but it doesn't seem worth reprogramming all that.
-@^system dependencies@>
-
-@d name_start == font_name[nf]
-@d name_end == font_name[nf+1]
-
-@<Move font name into the |cur_name| string@>=
-r := name_end - name_start;
-cur_name := xmalloc_array (char, r);
-{|strncpy| might be faster, but it's probably a good idea to keep the
- |xchr| translation.}
-for k := name_start to name_end do begin
- cur_name[k - name_start] := xchr[names[k]];
-end;
-cur_name[r] := 0; {Append null byte for C.}
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% JFM
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x Not use fprintf() for JIS
- for k:=1 to text_ptr do print(xchr[text_buf[k]]);
- print_ln(']');
-@y
- for k:=1 to text_ptr do print(xchr[text_buf[k]]);
- print(']'); print_ln('');
-@z
-
-@x
-@p procedure out_text(c:ASCII_code);
-begin if text_ptr=line_length-2 then flush_text;
-incr(text_ptr); text_buf[text_ptr]:=c;
-end;
-@y
-@p procedure out_text(c:ASCII_code);
-begin if text_ptr=line_length-2 then flush_text;
-incr(text_ptr);
-if c>=177 then text_buf[text_ptr]:=@'77 else text_buf[text_ptr]:=c;
-end;
-
-@ declare kanji conversion function
-
-@d jis_enc==0
-@d euc_enc==1
-@d sjis_enc==2
-
-@ @<Global...@> =
-@!proc_kanji_code:jis_enc..sjis_enc;
-
-@ @<Set init...@> =
-ifdef('OUTJIS') proc_kanji_code:=jis_enc; endif('OUTJIS');
-ifdef('OUTEUC') proc_kanji_code:=euc_enc; endif('OUTEUC');
-ifdef('OUTSJIS') proc_kanji_code:=sjis_enc; endif('OUTSJIS');
-
-@ @p procedure out_kanji(c:integer);
-begin
- if text_ptr>=line_length-3 then flush_text;
- if (proc_kanji_code=sjis_enc) then begin
- c := JIStoSJIS(c);
- incr(text_ptr); text_buf[text_ptr]:= c div 256;
- incr(text_ptr); text_buf[text_ptr]:= c mod 256;
- end else begin
- incr(text_ptr); text_buf[text_ptr]:= c div 256 + 128;
- incr(text_ptr); text_buf[text_ptr]:= c mod 256 + 128;
- end;
-end;
-
-@ output hexdecimal / octal character code.
-
-@d print_hex_digit(#)==if # <= 9 then print((#):1)
- else case # of
- 10: print(xchr['A']);
- 11: print(xchr['B']);
- 12: print(xchr['C']);
- 13: print(xchr['D']);
- 14: print(xchr['E']);
- 15: print(xchr['F']); { no more cases }
- end
-
-@p
-ifdef('HEX_CHAR_CODE')
-procedure print_hex_number(c:integer);
-var n:integer;
- b:array[1..8] of integer;
-begin
- n:=1;
- while (n<8) and (c<>0) do
- begin b[n]:=c mod 16; c:=c div 16; n:=n+1 end;
- print('"');
- if n=1 then print(xchr['0'])
- else
- begin
- n:=n-1;
- while n>0 do
- begin print_hex_digit(b[n]); n:=n-1 end
- end
-end;
-endif('HEX_CHAR_CODE')
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-z0: first_par:=z;
-@y
-z0: first_par:=z;
-dir: first_par:=get_byte;
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-s:=0; h:=0; v:=0; w:=0; x:=0; y:=0; z:=0; hh:=0; vv:=0;
-@y
-s:=0; h:=0; v:=0; w:=0; x:=0; y:=0; z:=0; hh:=0; vv:=0; dd:=0;
-@z
-%%%%%%%%%%%%%%%%%%%%%%%%% End of pTeX%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-@x [80] (major,minor) optionally show opcode
-@d show(#)==begin flush_text; showing:=true; print(a:1,': ',#);
- end
-@d major(#)==if out_mode>errors_only then show(#)
-@d minor(#)==if out_mode>terse then
- begin showing:=true; print(a:1,': ',#);
-@y
-@d show(#)==begin flush_text; showing:=true; print(a:1,': ',#);
- if show_opcodes and (o >= 128) then print (' {', o:1, '}');
- end
-@d major(#)==if out_mode>errors_only then show(#)
-@d minor(#)==if out_mode>terse then
- begin showing:=true; print(a:1,': ',#);
- if show_opcodes and (o >= 128) then print (' {', o:1, '}');
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
- four_cases(set1): begin major('set',o-set1+1:1,' ',p:1); goto fin_set;
-@y
- four_cases(set1):
- begin
- if fnt_jfm_p[cur_font]=true then
- begin
- cur_jfm_char_type:=get_jfm_char_type(cur_font,p);
- out_kanji(p);
- minor('set',o-set1+1:1,' ',p:1);
-ifdef('HEX_CHAR_CODE')
- print('(');
- print_hex_number(p);
- print(')');
-endif('HEX_CHAR_CODE')
- print(' type=',cur_jfm_char_type);
- p:=cur_jfm_char_type
- end
- else begin
- major('set',o-set1+1:1,' ',p:1);
-ifdef('HEX_CHAR_CODE')
- print('(');
- print_hex_number(p);
- print(')');
-endif('HEX_CHAR_CODE')
- end;
- goto fin_set;
-@z
-
-@x
- put_rule: begin major('putrule'); goto fin_rule;
- end;
-@y
- put_rule: begin major('putrule'); goto fin_rule;
- end;
- dir: begin major('dir ',p:1); dd:=p; goto done;
- end;
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
- hstack[s]:=h; vstack[s]:=v; wstack[s]:=w;
-@y
- ddstack[s]:=dd;
- hstack[s]:=h; vstack[s]:=v; wstack[s]:=w;
-@z
-
-@x
- h:=hstack[s]; v:=vstack[s]; w:=wstack[s];
-@y
- dd:=ddstack[s];
- h:=hstack[s]; v:=vstack[s]; w:=wstack[s];
-@z
-
-@x
-@d out_space(#)==if (p>=font_space[cur_font])or(p<=-4*font_space[cur_font]) then
- begin out_text(" "); hh:=pixel_round(h+p);
- end
- else hh:=hh+pixel_round(p);
-@y
-@d out_space(#)==if (p>=font_space[cur_font])or(p<=-4*font_space[cur_font]) then
- begin out_text(" ");
- if dd=0 then hh:=pixel_round(h+p) else vv:=pixel_round(v+p);
- end
- else if dd=0 then hh:=hh+pixel_round(p) else vv:=vv+pixel_round(p);
-@z
-
-@x
-@d out_vmove(#)==if abs(p)>=5*font_space[cur_font] then vv:=pixel_round(v+p)
- else vv:=vv+pixel_round(p);
-@y
-@d out_vmove(#)==if abs(p)>=5*font_space[cur_font] then
- begin if dd=0 then vv:=pixel_round(v+p) else hh:=pixel_round(h-p) end
- else if dd=0 then vv:=vv+pixel_round(p) else hh:=hh-pixel_round(p);
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% Hexadecimal code
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@ @<Translate a |set_char|...@>=
-begin if (o>" ")and(o<="~") then
- begin out_text(p); minor('setchar',p:1);
- end
-else major('setchar',p:1);
-@y
-@ @<Translate a |set_char|...@>=
-begin if (o>" ")and(o<="~") then
- begin out_text(p); minor('setchar',p:1);
- end
-else major('setchar',p:1);
-ifdef('HEX_CHAR_CODE')
- print(' (');
- print_hex_number(p);
- print(')');
-endif('HEX_CHAR_CODE')
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-else hh:=hh+char_pixel_width(cur_font)(p);
-@y
-else if dd=0 then hh:=hh+char_pixel_width(cur_font)(p)
- else vv:=vv+char_pixel_width(cur_font)(p);
-@z
-
-@x
-hh:=hh+rule_pixels(q); goto move_right
-@y
-if dd=0 then hh:=hh+rule_pixels(q) else vv:=vv+rule_pixels(q);
-goto move_right
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
-@<Finish a command that sets |h:=h+q|, then |goto done|@>=
-@y
-@<Finish a command that sets |h:=h+q|, then |goto done|@>=
-if dd=0 then begin
-@z
-
-@x
-goto done
-@y
-goto done end
-else begin
-if (v>0)and(q>0) then if v>infinity-q then
- begin error('arithmetic overflow! parameter changed from ',
-@.arithmetic overflow...@>
- q:1,' to ',infinity-q:1);
- q:=infinity-v;
- end;
-if (v<0)and(q<0) then if -v>q+infinity then
- begin error('arithmetic overflow! parameter changed from ',
- q:1, ' to ',(-v)-infinity:1);
- q:=(-v)-infinity;
- end;
-hhh:=pixel_round(v+q);
-if abs(hhh-vv)>max_drift then
- if hhh>vv then vv:=hhh-max_drift
- else vv:=hhh+max_drift;
-if showing then if out_mode>mnemonics_only then
- begin print(' v:=',v:1);
- if q>=0 then print('+');
- print(q:1,'=',v+q:1,', vv:=',vv:1);
- end;
-v:=v+q;
-if abs(v)>max_v_so_far then
- begin if abs(v)>max_v+99 then
- begin error('warning: |v|>',max_v:1,'!');
-@.warning: |v|...@>
- max_v:=abs(v);
- end;
- max_v_so_far:=abs(v);
- end;
-goto done
-end
-@z
-
-@x
-@ @<Finish a command that sets |v:=v+p|, then |goto done|@>=
-@y
-@ @<Finish a command that sets |v:=v+p|, then |goto done|@>=
-if dd=0 then begin
-@z
-
-@x
-goto done
-@y
-goto done end
-else begin
-p:=-p;
-if (h>0)and(p>0) then if h>infinity-p then
- begin error('arithmetic overflow! parameter changed from ',
-@.arithmetic overflow...@>
- p:1,' to ',infinity-h:1);
- p:=infinity-h;
- end;
-if (h<0)and(p<0) then if -h>p+infinity then
- begin error('arithmetic overflow! parameter changed from ',
- p:1, ' to ',(-h)-infinity:1);
- p:=(-h)-infinity;
- end;
-vvv:=pixel_round(h+p);
-if abs(vvv-hh)>max_drift then
- if vvv>hh then hh:=vvv-max_drift
- else hh:=vvv+max_drift;
-if showing then if out_mode>mnemonics_only then
- begin print(' h:=',h:1);
- if p>=0 then print('+');
- print(p:1,'=',h+p:1,', hh:=',hh:1);
- end;
-h:=h+p;
-if abs(h)>max_h_so_far then
- begin if abs(h)>max_h+99 then
- begin error('warning: |h|>',max_h:1,'!');
-@.warning: |h|...@>
- max_h:=abs(h);
- end;
- max_h_so_far:=abs(h);
- end;
-goto done
-end
-@z
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% pTeX
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-@x
- print('level ',ss:1,':(h=',h:1,',v=',v:1,
- ',w=',w:1,',x=',x:1,',y=',y:1,',z=',z:1,
- ',hh=',hh:1,',vv=',vv:1,')');
-@y
- begin
- print('level ',ss:1,':(h=',h:1,',v=',v:1,
- ',w=',w:1,',x=',x:1,',y=',y:1,',z=',z:1);
- if ptex_p then print(',d=',dd:1);
- print(',hh=',hh:1,',vv=',vv:1,')');
- end;
-@z
-
-@x
-if k<>id_byte then bad_dvi('ID byte is ',k:1);
-@y
-ptex_p:=(k=ptex_id_byte);
-if (k<>id_byte) and (not ptex_p) then bad_dvi('ID byte is ',k:1);
-@z
-
-@x
-print_ln(', maxstackdepth=',max_s:1,', totalpages=',total_pages:1);
-@y
-print_ln(', maxstackdepth=',max_s:1,', totalpages=',total_pages:1);
-if ptex_p then print_ln('pTeX DVI (id=',ptex_id_byte:1,')');
-@z
-
-@x
-if m<>id_byte then print_ln('identification in byte ',cur_loc-1:1,
-@.identification...should be n@>
- ' should be ',id_byte:1,'!');
-@y
-if (m<>id_byte) and (m<>ptex_id_byte) then
- print_ln('identification in byte ',cur_loc-1:1,
-@.identification...should be n@>
- ' should be ',id_byte:1,' or ',ptex_id_byte:1,'!');
-@z
-
-@x [106] (main) No dialog; remove unused label.
-dialog; {set up all the options}
-@y
-@<Print all the selected options@>;
-@z
-
-@x
-final_end:end.
-@y
-end.
-@z
-
-@x [109] Fix another floating point print.
-print_ln('magnification=',mag:1,'; ',conv:16:8,' pixels per DVI unit')
-@y
-print ('magnification=', mag:1, '; ');
-print_real (conv, 16, 8);
-print_ln (' pixels per DVI unit')
-@z
-
-@x [111] System-dependent changes.
-This section should be replaced, if necessary, by changes to the program
-that are necessary to make \.{DVItype} work at a particular installation.
-It is usually best to design your change file so that all changes to
-previous sections preserve the section numbering; then everybody's version
-will be consistent with the printed program. More extensive changes,
-which introduce new sections, can be inserted here; then only the index
-itself will get a new section number.
-@^system dependencies@>
-@y
-Parse a Unix-style command line.
-
-@d argument_is (#) == (strcmp (long_options[option_index].name, #) = 0)
-
-@<Define |parse_arguments|@> =
-procedure parse_arguments;
-const n_options = 9; {Pascal won't count array lengths for us.}
-var @!long_options: array[0..n_options] of getopt_struct;
- @!getopt_return_val: integer;
- @!option_index: c_int_type;
- @!current_option: 0..n_options;
- @!end_num:^char; {for \.{page-start}}
-begin
- @<Define the option table@>;
- repeat
- getopt_return_val := getopt_long_only (argc, argv, '', long_options,
- address_of (option_index));
- if getopt_return_val = -1 then begin
- {End of arguments; we exit the loop below.} ;
-
- end else if getopt_return_val = "?" then begin
- usage ('pdvitype');
-
- end else if argument_is ('help') then begin
- usage_help (PDVITYPE_HELP, nil);
-
- end else if argument_is ('version') then begin
- print_version_and_exit (banner, nil, 'D.E. Knuth');
-
- end else if argument_is ('output-level') then begin
- out_mode := atou (optarg);
- if (out_mode = 0) or (out_mode > 4) then begin
- write_ln (stderr, 'Value for --output-level must be >= 1 and <= 4.');
- uexit (1);
- end;
-
- end else if argument_is ('page-start') then begin
- @<Determine the desired |start_count| values from |optarg|@>;
-
- end else if argument_is ('max-pages') then begin
- max_pages := atou (optarg);
-
- end else if argument_is ('dpi') then begin
- resolution := atof (optarg);
-
- end else if argument_is ('magnification') then begin
- new_mag := atou (optarg);
-
- end; {Else it was a flag; |getopt| has already done the assignment.}
- until getopt_return_val = -1;
-
- {Now |optind| is the index of first non-option on the command line.}
- if (optind + 1 <> argc) then begin
- write_ln (stderr, 'pdvitype: Need exactly one file argument.');
- usage ('pdvitype');
- end;
-end;
-
-@ Here are the options we allow. The first is one of the standard GNU options.
-@.-help@>
-
-@<Define the option...@> =
-current_option := 0;
-long_options[current_option].name := 'help';
-long_options[current_option].has_arg := 0;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-
-@ Another of the standard options.
-@.-version@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'version';
-long_options[current_option].has_arg := 0;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-
-@ How verbose to be.
-@.-output-level@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'output-level';
-long_options[current_option].has_arg := 1;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-out_mode := the_works; {default}
-
-@ What page to start at.
-@.-page-start@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'page-start';
-long_options[current_option].has_arg := 1;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-
-@ Parsing the starting page specification is a bit complicated.
-
-@<Determine the desired |start_count|...@> =
-k := 0; {which \.{\\count} register we're on}
-m := 0; {position in |optarg|}
-while optarg[m] do begin
- if optarg[m] = "*" then begin
- start_there[k] := false;
- incr (m);
-
- end else if optarg[m] = "." then begin
- incr (k);
- if k >= 10 then begin
- write_ln (stderr, 'dvitype: More than ten count registers specified.');
- uexit (1);
- end;
- incr (m);
-
- end else begin
- start_count[k] := strtol (optarg + m, address_of (end_num), 10);
- if end_num = optarg + m then begin
- write_ln (stderr, 'dvitype: -page-start values must be numeric or *.');
- uexit (1);
- end;
- start_there[k] := true;
- m := m + end_num - (optarg + m);
- end;
-end;
-start_vals := k;
-
-@ How many pages to do.
-@.-max-pages@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'max-pages';
-long_options[current_option].has_arg := 1;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-max_pages := 1000000; {default}
-
-@ Resolution, in pixels per inch.
-@.-dpi@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'dpi';
-long_options[current_option].has_arg := 1;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-resolution := 300.0; {default}
-
-@ Magnification to apply.
-@.-magnification@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'magnification';
-long_options[current_option].has_arg := 1;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-incr (current_option);
-new_mag := 0; {default is to keep the old one}
-
-@ Whether to show numeric opcodes.
-@.-show-opcodes@>
-
-@<Define the option...@> =
-long_options[current_option].name := 'show-opcodes';
-long_options[current_option].has_arg := 0;
-long_options[current_option].flag := address_of (show_opcodes);
-long_options[current_option].val := 1;
-incr (current_option);
-new_mag := 0; {default is to keep the old one}
-
-@ @<Glob...@> =
-@!show_opcodes: c_int_type;
-
-@ An element with all zeros always ends the list.
-
-@<Define the option...@> =
-long_options[current_option].name := 0;
-long_options[current_option].has_arg := 0;
-long_options[current_option].flag := 0;
-long_options[current_option].val := 0;
-@z