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Diffstat (limited to 'fonts/psfonts/tools/vptovf.ch')
-rw-r--r-- | fonts/psfonts/tools/vptovf.ch | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/fonts/psfonts/tools/vptovf.ch b/fonts/psfonts/tools/vptovf.ch new file mode 100644 index 0000000000..3a6853865f --- /dev/null +++ b/fonts/psfonts/tools/vptovf.ch @@ -0,0 +1,325 @@ +% vptovf.ch for C compilation with web2c. + + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [0] WEAVE: print changes only. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +\pageno=\contentspagenumber \advance\pageno by 1 +@y +\pageno=\contentspagenumber \advance\pageno by 1 +\let\maybe=\iffalse +\def\title{VP$\,$\lowercase{to}$\,$VF changes for C} +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [1] Change banner string. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@d banner=='This is VPtoVF, Version 1.4' {printed when the program starts} +@y +@d banner=='This is VPtoVF, Version 1.4' {more is printed later} +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [2] Remove filenames from program statement, and print the banner later. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@p program VPtoVF(@!vpl_file,@!vf_file,@!tfm_file,@!output); +@y +@p program VPtoVF; +@z + +@x + begin print_ln(banner);@/ +@y + begin +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% increase max. ligtable size: +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@!max_lig_steps=5000; + {maximum length of ligature program, must be at most $32767-257=32510$} +@!max_kerns=500; {the maximum number of distinct kern values} +@!hash_size=5003; {preferably a prime number, a bit larger than the number + of character pairs in lig/kern steps} +@y +@!max_lig_steps=32000; + {maximum length of ligature program, must be at most $32767-257=32510$} +@!max_kerns=15000; {the maximum number of distinct kern values} +@!hash_size=15077; {preferably a prime number, a bit larger than the number + of character pairs in lig/kern steps} +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [6] Open VPL file. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +reset(vpl_file); +@y +if (argc < 4) or (argc > n_options + 4) +then begin + print_ln ('Usage: vptovf [-verbose] <vpl file> <vfm file> <tfm file>.'); + uexit (1); +end; +@<Initialize the option variables@>; +@<Parse arguments@>; +argv (optind, vpl_name); +reset (vpl_file, vpl_name); +if verbose then begin + print (banner); + print_ln (banner); +end; +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [21] Declare filename variables. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@!tfm_file:packed file of 0..255; +@y +@!tfm_file:packed file of 0..255; +@!vf_name,@!tfm_name,@!vpl_name:packed array[1..PATH_MAX] of char; +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [22] Open output files. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@ On some systems you may have to do something special to write a +packed file of bytes. For example, the following code didn't work +when it was first tried at Stanford, because packed files have to be +opened with a special switch setting on the \PASCAL\ that was used. +@^system dependencies@> + +@<Set init...@>= +rewrite(vf_file); rewrite(tfm_file); +@y +@ On some systems you may have to do something special to write a +packed file of bytes. +@^system dependencies@> + +@<Set init...@>= +argv(optind + 1, vf_name); +rewrite(vf_file, vf_name); +argv(optind + 2, tfm_name); +rewrite(tfm_file, tfm_name); +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [89] `index' is not a good choice for an identifier on Unix systems. +% Neither is `class', on AIX. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +|k|th element of its list. + +@<Glob...@>= +@!index:array[pointer] of byte; +@y +|k|th element of its list. + +@d index == index_var +@d class == class_var + +@<Glob...@>= +@!index:array[pointer] of byte; +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [118] No output unless verbose. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@<Print |c| in octal notation@>; +@y +if verbose then @<Print |c| in octal notation@>; +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [144] Output of real numbers. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@ @d round_message(#)==if delta>0 then print_ln('I had to round some ', +@.I had to round...@> + #,'s by ',(((delta+1) div 2)/@'4000000):1:7,' units.') +@y +@ @d round_message(#)==if delta>0 then begin print('I had to round some ', +@.I had to round...@> + #,'s by '); print_real((((delta+1) div 2)/@'4000000),1,7); + print_ln(' units.'); end +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [152] Fix up the mutually recursive procedures a la pltotf. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@p function f(@!h,@!x,@!y:indx):indx; forward;@t\2@> + {compute $f$ for arguments known to be in |hash[h]|} +@y +@p +ifdef('notdef') +function f(@!h,@!x,@!y:indx):indx; begin end;@t\2@> + {compute $f$ for arguments known to be in |hash[h]|} +endif('notdef') +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [153] Finish fixing up f. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@p function f; +@y +@p function f(@!h,@!x,@!y:indx):indx; +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [156] Change TFM-byte output to fix ranges. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@d out(#)==write(tfm_file,#) +@y +@d out(#)==putbyte(#,tfm_file) +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [165] Fix output of reals. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@p procedure out_scaled(x:fix_word); {outputs a scaled |fix_word|} +var @!n:byte; {the first byte after the sign} +@!m:0..65535; {the two least significant bytes} +begin if abs(x/design_units)>=16.0 then + begin print_ln('The relative dimension ',x/@'4000000:1:3, + ' is too large.'); +@.The relative dimension...@> + print(' (Must be less than 16*designsize'); + if design_units<>unity then print(' =',design_units/@'200000:1:3, + ' designunits'); +@y +@p procedure out_scaled(x:fix_word); {outputs a scaled |fix_word|} +var @!n:byte; {the first byte after the sign} +@!m:0..65535; {the two least significant bytes} +begin if fabs(x/design_units)>=16.0 then + begin print('The relative dimension '); + print_real(x/@'4000000,1,3); + print_ln(' is too large.'); +@.The relative dimension...@> + print(' (Must be less than 16*designsize'); + if design_units<>unity then begin print(' ='); + print_real(design_units/@'200000,1,3); + print(' designunits'); + end; +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [141] char_remainder[c] is unsigned, and label_table[sort_ptr].rr +% might be -1, and if -1 is coerced to being unsigned, it will be bigger +% than anything else. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x + while label_table[sort_ptr].rr>char_remainder[c] do +@y + while label_table[sort_ptr].rr>toint(char_remainder[c]) do +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [175] Change VF-byte output to fix ranges. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@d vout(#)==write(vf_file,#) +@y +@d vout(#)==putbyte(#,vf_file) +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [181] Be quiet unless verbose. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +read_input; print_ln('.');@/ +@y +read_input; +if verbose then print_ln('.'); +@z + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% [182] System-dependent changes. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +@x +@* System-dependent changes. +This section should be replaced, if necessary, by changes to the program +that are necessary to make \.{VPtoVF} 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 +@* System-dependent changes. We want to parse a Unix-style command line. + +@<Parse arguments@> = +begin + @<Define the option table@>; + repeat + getopt_return_val := getopt_long_only (argc, gargv, '', long_options, + address_of_int (option_index)); + if getopt_return_val <> -1 + then begin + if getopt_return_val = "?" + then uexit (1); {|getopt| has already given an error message.} + {We don't have any non-flag options.} + end; + until getopt_return_val = -1; + + {Now |optind| is the index of first non-option on the command line.} +end + + +@ The array of information we pass in. The type |getopt_struct| is +defined in C, to avoid type clashes. We also need to know the return +value from getopt, and the index of the current option. + +@<Local var...@> = +@!long_options: array[0..n_options] of getopt_struct; +@!getopt_return_val: integer; +@!option_index: c_int_type; + + +@ Here are the options we allow. + +@<Define the option...@> = +long_options[0].name := 'verbose'; +long_options[0].has_arg := 0; +long_options[0].flag := address_of_int (verbose); +long_options[0].val := 1; + + +@ The global variable |verbose| determines whether or not we print +progress information. + +@<Glob...@> = +@!verbose: c_int_type; + +@ It starts off |false|. + +@<Initialize the option...@> = +verbose := false; + + +@ An element with all zeros always ends the list. + +@<Define the option...@> = +long_options[1].name := 0; +long_options[1].has_arg := 0; +long_options[1].flag := 0; +long_options[1].val := 0; + + +@ Pascal compilers won't count the number of elements in an array +constant for us. This doesn't include the zero-element at the end, +because this array starts at index zero. + +@<Constants...@> = +n_options = 1; +@z |