% pltotf.ch for C compilation with web2c. % % The original version of this file was created by Pavel Curtis. % % History: % 04/04/83 (PC) Original version, made to work with version 1.2 of PLtoTF. % 04/16/83 (PC) Brought up to version 1.3 of PLtoTF. % 06/30/83 (HWT) Revised changefile format for version 1.7 Tangle % 07/28/83 (HWT) Brought up to version 2 % 12/19/86 (ETM) Brought up to version 2.1 % 07/05/87 (ETM) Brought up to version 2.3 % 03/22/88 (ETM) Converted for use with WEB to C % 11/29/89 (KB) Version 3. % 01/16/90 (SR) Version 3.2. % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [0] WEAVE: print changes only %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x \pageno=\contentspagenumber \advance\pageno by 1 @y \pageno=\contentspagenumber \advance\pageno by 1 \let\maybe=\iffalse \def\title{PLTOTF changes for C} @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [1] Change banner string. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x @d banner=='This is PLtoTF, Version 3.2' {printed when the program starts} @y @d banner=='This is PLtoTF, C Version 3.2' {printed when the program starts} @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [2] Remove filenames in program statement. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x @p program PLtoTF(@!pl_file,@!tfm_file,@!output); @y @p program PLtoTF; @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [3] Larger constants. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x @!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_kerns=10000; {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 PL file. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x reset(pl_file); @y if argc < 3 then begin print_ln('Usage: pltotf .'); uexit(1); end; argv(1, pl_name); reset(pl_file, pl_name); @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [15] Change type of tfm_file and declare extra file name variables. % We don't have to worry about matching FILENAMESIZE here, since no % paths are used in opening files. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x @!tfm_file:packed file of 0..255; @y @!tfm_file:packed file of 0..255; @!tfm_name,@!pl_name:packed array[1..100] of char; @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [16] Open TFM file %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @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@> @= rewrite(tfm_file); @y @ On some systems you may have to do something special to write a packed file of bytes with Pascal. It's no problem in C. @^system dependencies@> @= argv(2, tfm_name); rewrite(tfm_file, tfm_name); @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [115] Output of reals. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @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 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [123] web2c can't handle these mutually recursive procedures. % But let's do a fake definition of f here, so that it gets into web2c's % symbol table... %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @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 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [124] ... and then really define it now. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x @p function f; @y @p function f(@!h,@!x,@!y:indx):indx; @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [127] Fix up output of bytes. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x @d out(#)==write(tfm_file,#) @y @d out(#)==putbyte(#,tfm_file) @z %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [136] 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 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [147] Print newline at end of program %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @x end. @y print_ln(' '); end. @z