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authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/web2c/patgen.ch
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
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+% patgen.ch for C compilation with web2c.
+%
+% 07/01/83 (HWT) Original version, made to work with patgen released with
+% version 0.99 of TeX in July 1983. It may not work
+% properly---it is hard to test without more information.
+% 03/23/88 (ETM) Brought up to date, converted for use with WEB to C.
+
+@x WEAVE: print changes only
+\pageno=\contentspagenumber \advance\pageno by 1
+@y
+\pageno=\contentspagenumber \advance\pageno by 1
+\let\maybe=\iffalse
+\def\title{PATGEN changes for C}
+@z
+
+@x Terminal I/O
+@d get_input(#)==read(input,#)
+@d get_input_ln(#)==
+ begin if eoln(input) then read_ln(input);
+ read(input,#);
+ end
+@#
+@y
+@d get_input(#)==#:=input_int(std_input)
+@d get_input_ln(#)==begin #:=getc(std_input); read_ln(std_input); end @#
+@z
+
+@x Need standard input.
+@p @<Compiler directives@>@/
+@y
+@d std_input==stdin
+@p @<Compiler directives@>@/
+@z
+
+@x Add file opening to initialization
+procedure initialize; {this procedure gets things started properly}
+ var @<Local variables for initialization@>@/
+ begin print_ln(banner);@/
+@y
+@<Define |parse_arguments|@>
+procedure initialize; {this procedure gets things started properly}
+ var @<Local variables for initialization@>@/
+begin
+ kpse_set_progname (argv[0]);
+ parse_arguments;
+ print (banner);
+ print_ln (version_string);
+@z
+
+@x Error handling
+@d error(#)==begin print_ln(#); jump_out; end
+@y
+@d error(#)==begin write_ln(stderr, #); uexit(1); end;
+@z
+
+@x Fix signed char problem
+@!text_char=char; {the data type of characters in text files}
+@!ASCII_code=0..last_ASCII_code; {internal representation of input characters}
+@y
+@!ASCII_code=0..last_ASCII_code; {internal representation of input characters}
+@!text_char=ASCII_code; {the data type of characters in text files}
+@z
+
+@x Increase constants.
+@!trie_size=55000; {space for pattern trie}
+@!triec_size=26000; {space for pattern count trie, must be less than
+ |trie_size| and greater than the number of occurrences of any pattern in
+ the dictionary}
+@y
+@!trie_size=550000; {space for pattern trie}
+@!triec_size=260000; {space for pattern count trie, must be less than
+ |trie_size| and greater than the number of occurrences of any pattern in
+ the dictionary}
+@z
+@x
+@!max_buf_len=80; {maximum length of input lines, must be at least |max_len|}
+@y
+@!max_buf_len=3000; {maximum length of input lines, must be at least |max_len|}
+@z
+
+@x Close both input and output files.
+@d close_out(#)==close(#) {close an output file}
+@d close_in(#)==do_nothing {close an input file}
+@y
+@d close_out(#)==xfclose(#, 'outputfile') {close an output file}
+@d close_in(#)==xfclose(#, 'inputfile') {close an input file}
+@z
+
+@x Add f_name declaration, and temporaries for efficiency printing.
+@!dictionary, @!patterns, @!translate, @!patout, @!pattmp: text_file;
+@y
+@!dictionary, @!patterns, @!translate, @!patout, @!pattmp: text_file;
+@!f_name: ^char;
+@!bad_frac, @!denom, @!eff: real;
+@z
+
+@x Get translate filename from command line.
+reset(translate);
+@y
+f_name := cmdline (4);
+reset (translate, f_name);
+@z
+
+@x Input kludge.
+ repeat print('left_hyphen_min, right_hyphen_min: '); get_input(n1,n2);@/
+@y
+ repeat print('left_hyphen_min, right_hyphen_min: '); input_2ints(n1,n2);@/
+@z
+
+@x Floating point output kludge for Web2c.
+ print_ln(', efficiency = ',
+ good_count/(good_pat_count+bad_count/bad_eff):1:2)
+@y
+begin
+ print(', efficiency = ');
+ print_real(good_count/(good_pat_count+bad_count/bad_eff),1,2);
+ write_ln(output);
+end
+@z
+
+@x Get dictionary filename from command line.
+ reset(dictionary);@/
+@y
+f_name := cmdline(1);
+reset (dictionary, f_name);
+@z
+
+% Fix file name initialization, since can't assign a constant string
+% that we're going to write into.
+@x
+ begin filnam:='pattmp. ';
+ filnam[8]:=xdig[hyph_level];
+@y
+ begin strcpy (filnam, 'pattmp. ');
+ filnam[7]:=xdig[hyph_level];
+@z
+
+@x Work around floating point I/O deficiency.
+ if (good_count+miss_count)>0 then
+ print_ln((100*good_count/(good_count+miss_count)):1:2,' %, ',
+ (100*bad_count/(good_count+miss_count)):1:2,' %, ',
+ (100*miss_count/(good_count+miss_count)):1:2,' %');
+@y
+ if (good_count+miss_count)>0 then
+ begin print_real((100*good_count/(good_count+miss_count)),1,2);
+ print(' %, ');
+ print_real((100*bad_count/(good_count+miss_count)),1,2);
+ print(' %, ');
+ print_real((100*miss_count/(good_count+miss_count)),1,2);
+ print_ln(' %');
+ end;
+@z
+
+@x Get pattern filename from command line.
+reset(patterns);
+@y
+f_name := cmdline (2);
+reset (patterns, f_name);
+@z
+
+@x Fix reading of multiple variables in the same line
+repeat print('hyph_start, hyph_finish: '); get_input(n1,n2);@/
+@y
+repeat print('hyph_start, hyph_finish: '); input_2ints(n1,n2);@/
+@z
+@x
+ repeat print('pat_start, pat_finish: '); get_input(n1,n2);@/
+@y
+ repeat print('pat_start, pat_finish: '); input_2ints(n1,n2);@/
+@z
+@x
+ get_input(n1,n2,n3);@/
+@y
+ input_3ints(n1,n2,n3);@/
+@z
+
+@x Get output file name from command line.
+rewrite(patout);
+@y
+f_name := cmdline (3);
+rewrite (patout, f_name);
+@z
+
+@x System-dependent changes.
+This section should be replaced, if necessary, by changes to the program
+that are necessary to make \.{PATGEN} 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 = 2; {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;
+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
+ do_nothing;
+
+ end else if getopt_return_val = '?' then begin
+ usage ('patgen');
+
+ end else if argument_is ('help') then begin
+ usage_help (PATGEN_HELP, nil);
+
+ end else if argument_is ('version') then begin
+ print_version_and_exit (banner, nil,
+ 'Frank M. Liang and Peter Breitenlohner');
+
+ end; {Else it was just 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 + 4 <> argc) then begin
+ write_ln (stderr, 'patgen: Need exactly four arguments.');
+ usage ('patgen');
+ 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);
+
+@ 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