From 487ca4806cc046076293cf6cc5fbba0db282bac7 Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Tue, 17 Jan 2006 21:41:51 +0000 Subject: texk 1 git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751 --- Build/source/texk/web2c/dvitype.ch | 695 +++++++++++++++++++++++++++++++++++++ 1 file changed, 695 insertions(+) create mode 100644 Build/source/texk/web2c/dvitype.ch (limited to 'Build/source/texk/web2c/dvitype.ch') diff --git a/Build/source/texk/web2c/dvitype.ch b/Build/source/texk/web2c/dvitype.ch new file mode 100644 index 00000000000..7e05f1c7c95 --- /dev/null +++ b/Build/source/texk/web2c/dvitype.ch @@ -0,0 +1,695 @@ +% 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. +% (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 + +% [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 +@ +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 [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 + +@x [35] Make 16-bit TFM calculations work. +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:=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 [43] Initialize optional variables sooner. +@ @= +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@> + +@= +@!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= +@!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); +@; +@; +@; +@; +@; +@; +end; + +@ @= +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 + +@ @= +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 + +@ @= +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 + +@ @= +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 + +@ @= +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] 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} + +@= +@!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. +@ @= +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@> + +@= +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] + +@= +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 + +@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 + +@x [106] (main) No dialog; remove unused label. +dialog; {set up all the options} +@y +@; +@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) + +@ = +procedure parse_arguments; +const n_options = 8; {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 + @; + 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 ('dvitype'); + + end else if argument_is ('help') then begin + usage_help (DVITYPE_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 := optarg[0] - '0'; + if (out_mode < 0) or (out_mode > 4) or (optarg[1] <> 0) then begin + write_ln (stderr, 'Value for --output-level must be >= 0 and <= 4.'); + uexit (1); + end; + + end else if argument_is ('page-start') then begin + @; + + 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, 'dvitype: Need exactly one file argument.'); + usage ('dvitype'); + end; +end; + +@ Here are the options we allow. The first is one of the standard GNU options. +@.-help@> + +@ = +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@> + +@ = +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@> + +@ = +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@> + +@ = +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. + +@ = +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@> + +@ = +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@> + +@ = +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@> + +@ = +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@> + +@ = +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} + +@ @ = +@!show_opcodes: c_int_type; + +@ An element with all zeros always ends the list. + +@ = +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 -- cgit v1.2.3