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- #!/usr/freeware/bin/perl
- eval 'exec /usr/freeware/bin/perl -S $0 ${1+"$@"}'
- if $running_under_some_shell;
-
- use Config;
- use File::Path qw(mkpath);
- use Getopt::Std;
-
- getopts('Dd:rlhaQ');
- die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a);
- @inc_dirs = inc_dirs() if $opt_a;
-
- my $Exit = 0;
-
- my $Dest_dir = $opt_d || $Config{installsitearch};
- die "Destination directory $Dest_dir doesn't exist or isn't a directory\n"
- unless -d $Dest_dir;
-
- @isatype = split(' ',<<END);
- char uchar u_char
- short ushort u_short
- int uint u_int
- long ulong u_long
- FILE key_t caddr_t
- END
-
- @isatype{@isatype} = (1) x @isatype;
- $inif = 0;
-
- @ARGV = ('-') unless @ARGV;
-
- while (defined ($file = next_file())) {
- if (-l $file and -d $file) {
- link_if_possible($file) if ($opt_l);
- next;
- }
-
- # Recover from header files with unbalanced cpp directives
- $t = '';
- $tab = 0;
-
- # $eval_index goes into ``#line'' directives, to help locate syntax errors:
- $eval_index = 1;
-
- if ($file eq '-') {
- open(IN, "-");
- open(OUT, ">-");
- } else {
- ($outfile = $file) =~ s/\.h$/.ph/ || next;
- print "$file -> $outfile\n" unless $opt_Q;
- if ($file =~ m|^(.*)/|) {
- $dir = $1;
- mkpath "$Dest_dir/$dir";
- }
-
- if ($opt_a) { # automagic mode: locate header file in @inc_dirs
- foreach (@inc_dirs) {
- chdir $_;
- last if -f $file;
- }
- }
-
- open(IN,"$file") || (($Exit = 1),(warn "Can't open $file: $!\n"),next);
- open(OUT,">$Dest_dir/$outfile") || die "Can't create $outfile: $!\n";
- }
- while (<IN>) {
- chop;
- while (/\\$/) {
- chop;
- $_ .= <IN>;
- chop;
- }
- print OUT "# $_\n" if $opt_D;
- if (s:/\*:\200:g) {
- s:\*/:\201:g;
- s/\200[^\201]*\201//g; # delete single line comments
- if (s/\200.*//) { # begin multi-line comment?
- $_ .= '/*';
- $_ .= <IN>;
- redo;
- }
- }
- if (s/^\s*\#\s*//) {
- if (s/^define\s+(\w+)//) {
- $name = $1;
- $new = '';
- s/\s+$//;
- if (s/^\(([\w,\s]*)\)//) {
- $args = $1;
- my $proto = '() ';
- if ($args ne '') {
- $proto = '';
- foreach $arg (split(/,\s*/,$args)) {
- $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/;
- $curargs{$arg} = 1;
- }
- $args =~ s/\b(\w)/\$$1/g;
- $args = "local($args) = \@_;\n$t ";
- }
- s/^\s+//;
- expr();
- $new =~ s/(["\\])/\\$1/g; #"]);
- $new = reindent($new);
- $args = reindent($args);
- if ($t ne '') {
- $new =~ s/(['\\])/\\$1/g; #']);
- if ($opt_h) {
- print OUT $t,
- "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
- $eval_index++;
- } else {
- print OUT $t,
- "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
- }
- } else {
- print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n";
- }
- %curargs = ();
- } else {
- s/^\s+//;
- expr();
- $new = 1 if $new eq '';
- $new = reindent($new);
- $args = reindent($args);
- if ($t ne '') {
- $new =~ s/(['\\])/\\$1/g; #']);
- if ($opt_h) {
- print OUT $t,"eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name () {",$new,";}' unless defined(\&$name);\n";
- $eval_index++;
- } else {
- print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n";
- }
- } else {
- print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n";
- }
- }
- } elsif (/^(include|import)\s*[<"](.*)[>"]/) {
- ($incl = $2) =~ s/\.h$/.ph/;
- print OUT $t,"require '$incl';\n";
- } elsif(/^include_next\s*[<"](.*)[>"]/) {
- ($incl = $1) =~ s/\.h$/.ph/;
- print OUT ($t,
- "eval {\n");
- $tab += 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- print OUT ($t,
- "my(\%INCD) = map { \$INC{\$_} => 1 } ",
- "(grep { \$_ eq \"$incl\" } keys(\%INC));\n");
- print OUT ($t,
- "my(\@REM) = map { \"\$_/$incl\" } ",
- "(grep { not exists(\$INCD{\"\$_/$incl\"})",
- "and -f \"\$_/$incl\" } \@INC);\n");
- print OUT ($t,
- "require \"\$REM[0]\" if \@REM;\n");
- $tab -= 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- print OUT ($t,
- "};\n");
- print OUT ($t,
- "warn(\$\@) if \$\@;\n");
- } elsif (/^ifdef\s+(\w+)/) {
- print OUT $t,"if(defined(&$1)) {\n";
- $tab += 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- } elsif (/^ifndef\s+(\w+)/) {
- print OUT $t,"unless(defined(&$1)) {\n";
- $tab += 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- } elsif (s/^if\s+//) {
- $new = '';
- $inif = 1;
- expr();
- $inif = 0;
- print OUT $t,"if($new) {\n";
- $tab += 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- } elsif (s/^elif\s+//) {
- $new = '';
- $inif = 1;
- expr();
- $inif = 0;
- $tab -= 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- print OUT $t,"}\n elsif($new) {\n";
- $tab += 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- } elsif (/^else/) {
- $tab -= 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- print OUT $t,"} else {\n";
- $tab += 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- } elsif (/^endif/) {
- $tab -= 4;
- $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
- print OUT $t,"}\n";
- } elsif(/^undef\s+(\w+)/) {
- print OUT $t, "undef(&$1) if defined(&$1);\n";
- } elsif(/^error\s+"?([^"\n]*)/) {
- print OUT $t, "die(\"$1\");\n";
- } elsif(/^warning\s+"?([^"\n]*)/) {
- print OUT $t, "warn(\"$1\");\n";
- } elsif(/^ident\s+(.*)/) {
- print OUT $t, "# $1\n";
- }
- } elsif(/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?\{/) {
- until(/\}.*?;/) {
- chomp($next = <IN>);
- $_ .= $next;
- print OUT "# $next\n" if $opt_D;
- }
- s@/\*.*?\*/@@g;
- s/\s+/ /g;
- /^\s?(typedef\s?)?enum\s?([a-zA-Z_]\w*)?\s?\{(.*)\}\s?([a-zA-Z_]\w*)?\s?;/;
- ($enum_subs = $3) =~ s/\s//g;
- @enum_subs = split(/,/, $enum_subs);
- $enum_val = -1;
- for $enum (@enum_subs) {
- ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/;
- $enum_value =~ s/^=//;
- $enum_val = (length($enum_value) ? $enum_value : $enum_val + 1);
- if ($opt_h) {
- print OUT ($t,
- "eval(\"\\n#line $eval_index $outfile\\n",
- "sub $enum_name () \{ $enum_val; \}\") ",
- "unless defined(\&$enum_name);\n");
- ++ $eval_index;
- } else {
- print OUT ($t,
- "eval(\"sub $enum_name () \{ $enum_val; \}\") ",
- "unless defined(\&$enum_name);\n");
- }
- }
- }
- }
- print OUT "1;\n";
-
- $is_converted{$file} = 1;
- queue_includes_from($file) if ($opt_a);
- }
-
- exit $Exit;
-
- sub reindent($) {
- my($text) = shift;
- $text =~ s/\n/\n /g;
- $text =~ s/ /\t/g;
- $text;
- }
-
- sub expr {
- if(keys(%curargs)) {
- my($joined_args) = join('|', keys(%curargs));
- }
- while ($_ ne '') {
- s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator
- s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of
- s/^(\s+)// && do {$new .= ' '; next;};
- s/^(0X[0-9A-F]+)[UL]*//i && do {$new .= lc($1); next;};
- s/^(-?\d+\.\d+E[-+]\d+)F?//i && do {$new .= $1; next;};
- s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;};
- s/^("(\\"|[^"])*")// && do {$new .= $1; next;};
- s/^'((\\"|[^"])*)'// && do {
- if ($curargs{$1}) {
- $new .= "ord('\$$1')";
- } else {
- $new .= "ord('$1')";
- }
- next;
- };
- # replace "sizeof(foo)" with "{foo}"
- # also, remove * (C dereference operator) to avoid perl syntax
- # problems. Where the %sizeof array comes from is anyone's
- # guess (c2ph?), but this at least avoids fatal syntax errors.
- # Behavior is undefined if sizeof() delimiters are unbalanced.
- # This code was modified to able to handle constructs like this:
- # sizeof(*(p)), which appear in the HP-UX 10.01 header files.
- s/^sizeof\s*\(// && do {
- $new .= '$sizeof';
- my $lvl = 1; # already saw one open paren
- # tack { on the front, and skip it in the loop
- $_ = "{" . "$_";
- my $index = 1;
- # find balanced closing paren
- while ($index <= length($_) && $lvl > 0) {
- $lvl++ if substr($_, $index, 1) eq "(";
- $lvl-- if substr($_, $index, 1) eq ")";
- $index++;
- }
- # tack } on the end, replacing )
- substr($_, $index - 1, 1) = "}";
- # remove pesky * operators within the sizeof argument
- substr($_, 0, $index - 1) =~ s/\*//g;
- next;
- };
- # Eliminate typedefs
- /\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do {
- foreach (split /\s+/, $1) { # Make sure all the words are types,
- last unless ($isatype{$_} or $_ eq 'struct');
- }
- s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them.
- };
- # struct/union member, including arrays:
- s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do {
- $id = $1;
- $id =~ s/(\.|(->))([^\.\-]*)/->\{$3\}/g;
- $id =~ s/\b([^\$])($joined_args)/$1\$$2/g if length($joined_args);
- while($id =~ /\[\s*([^\$\&\d\]]+)\]/) {
- my($index) = $1;
- $index =~ s/\s//g;
- if(exists($curargs{$index})) {
- $index = "\$$index";
- } else {
- $index = "&$index";
- }
- $id =~ s/\[\s*([^\$\&\d\]]+)\]/[$index]/;
- }
- $new .= " (\$$id)";
- };
- s/^([_a-zA-Z]\w*)// && do {
- $id = $1;
- if ($id eq 'struct') {
- s/^\s+(\w+)//;
- $id .= ' ' . $1;
- $isatype{$id} = 1;
- } elsif ($id =~ /^((un)?signed)|(long)|(short)$/) {
- while (s/^\s+(\w+)//) { $id .= ' ' . $1; }
- $isatype{$id} = 1;
- }
- if ($curargs{$id}) {
- $new .= "\$$id";
- $new .= '->' if /^[\[\{]/;
- } elsif ($id eq 'defined') {
- $new .= 'defined';
- } elsif (/^\(/) {
- s/^\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat
- $new .= " &$id";
- } elsif ($isatype{$id}) {
- if ($new =~ /{\s*$/) {
- $new .= "'$id'";
- } elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) {
- $new =~ s/\(\s*$//;
- s/^[\s*]*\)//;
- } else {
- $new .= q(').$id.q(');
- }
- } else {
- if ($inif && $new !~ /defined\s*\($/) {
- $new .= '(defined(&' . $id . ') ? &' . $id . ' : 0)';
- } elsif (/^\[/) {
- $new .= " \$$id";
- } else {
- $new .= ' &' . $id;
- }
- }
- next;
- };
- s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;};
- }
- }
-
-
- # Handle recursive subdirectories without getting a grotesquely big stack.
- # Could this be implemented using File::Find?
- sub next_file
- {
- my $file;
-
- while (@ARGV) {
- $file = shift @ARGV;
-
- if ($file eq '-' or -f $file or -l $file) {
- return $file;
- } elsif (-d $file) {
- if ($opt_r) {
- expand_glob($file);
- } else {
- print STDERR "Skipping directory `$file'\n";
- }
- } elsif ($opt_a) {
- return $file;
- } else {
- print STDERR "Skipping `$file': not a file or directory\n";
- }
- }
-
- return undef;
- }
-
-
- # Put all the files in $directory into @ARGV for processing.
- sub expand_glob
- {
- my ($directory) = @_;
-
- $directory =~ s:/$::;
-
- opendir DIR, $directory;
- foreach (readdir DIR) {
- next if ($_ eq '.' or $_ eq '..');
-
- # expand_glob() is going to be called until $ARGV[0] isn't a
- # directory; so push directories, and unshift everything else.
- if (-d "$directory/$_") { push @ARGV, "$directory/$_" }
- else { unshift @ARGV, "$directory/$_" }
- }
- closedir DIR;
- }
-
-
- # Given $file, a symbolic link to a directory in the C include directory,
- # make an equivalent symbolic link in $Dest_dir, if we can figure out how.
- # Otherwise, just duplicate the file or directory.
- sub link_if_possible
- {
- my ($dirlink) = @_;
- my $target = eval 'readlink($dirlink)';
-
- if ($target =~ m:^\.\./: or $target =~ m:^/:) {
- # The target of a parent or absolute link could leave the $Dest_dir
- # hierarchy, so let's put all of the contents of $dirlink (actually,
- # the contents of $target) into @ARGV; as a side effect down the
- # line, $dirlink will get created as an _actual_ directory.
- expand_glob($dirlink);
- } else {
- if (-l "$Dest_dir/$dirlink") {
- unlink "$Dest_dir/$dirlink" or
- print STDERR "Could not remove link $Dest_dir/$dirlink: $!\n";
- }
-
- if (eval 'symlink($target, "$Dest_dir/$dirlink")') {
- print "Linking $target -> $Dest_dir/$dirlink\n";
-
- # Make sure that the link _links_ to something:
- if (! -e "$Dest_dir/$target") {
- mkpath("$Dest_dir/$target", 0755) or
- print STDERR "Could not create $Dest_dir/$target/\n";
- }
- } else {
- print STDERR "Could not symlink $target -> $Dest_dir/$dirlink: $!\n";
- }
- }
- }
-
-
- # Push all #included files in $file onto our stack, except for STDIN
- # and files we've already processed.
- sub queue_includes_from
- {
- my ($file) = @_;
- my $line;
-
- return if ($file eq "-");
-
- open HEADER, $file or return;
- while (defined($line = <HEADER>)) {
- while (/\\$/) { # Handle continuation lines
- chop $line;
- $line .= <HEADER>;
- }
-
- if ($line =~ /^#\s*include\s+<(.*?)>/) {
- push(@ARGV, $1) unless $is_converted{$1};
- }
- }
- close HEADER;
- }
-
-
- # Determine include directories; $Config{usrinc} should be enough for (all
- # non-GCC?) C compilers, but gcc uses an additional include directory.
- sub inc_dirs
- {
- my $from_gcc = `$Config{cc} -v 2>&1`;
- $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s;
-
- length($from_gcc) ? ($from_gcc, $Config{usrinc}) : ($Config{usrinc});
- }
-
-
- 1;
-
- ##############################################################################
- __END__
-
- =head1 NAME
-
- h2ph - convert .h C header files to .ph Perl header files
-
- =head1 SYNOPSIS
-
- B<h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]>
-
- =head1 DESCRIPTION
-
- I<h2ph>
- converts any C header files specified to the corresponding Perl header file
- format.
- It is most easily run while in /usr/include:
-
- cd /usr/include; h2ph * sys/*
-
- or
-
- cd /usr/include; h2ph -r -l .
-
- The output files are placed in the hierarchy rooted at Perl's
- architecture dependent library directory. You can specify a different
- hierarchy with a B<-d> switch.
-
- If run with no arguments, filters standard input to standard output.
-
- =head1 OPTIONS
-
- =over 4
-
- =item -d destination_dir
-
- Put the resulting B<.ph> files beneath B<destination_dir>, instead of
- beneath the default Perl library location (C<$Config{'installsitsearch'}>).
-
- =item -r
-
- Run recursively; if any of B<headerfiles> are directories, then run I<h2ph>
- on all files in those directories (and their subdirectories, etc.). B<-r>
- and B<-a> are mutually exclusive.
-
- =item -a
-
- Run automagically; convert B<headerfiles>, as well as any B<.h> files
- which they include. This option will search for B<.h> files in all
- directories which your C compiler ordinarily uses. B<-a> and B<-r> are
- mutually exclusive.
-
- =item -l
-
- Symbolic links will be replicated in the destination directory. If B<-l>
- is not specified, then links are skipped over.
-
- =item -h
-
- Put ``hints'' in the .ph files which will help in locating problems with
- I<h2ph>. In those cases when you B<require> a B<.ph> file containing syntax
- errors, instead of the cryptic
-
- [ some error condition ] at (eval mmm) line nnn
-
- you will see the slightly more helpful
-
- [ some error condition ] at filename.ph line nnn
-
- However, the B<.ph> files almost double in size when built using B<-h>.
-
- =item -D
-
- Include the code from the B<.h> file as a comment in the B<.ph> file.
- This is primarily used for debugging I<h2ph>.
-
- =back
-
- =head1 ENVIRONMENT
-
- No environment variables are used.
-
- =head1 FILES
-
- /usr/include/*.h
- /usr/include/sys/*.h
-
- etc.
-
- =head1 AUTHOR
-
- Larry Wall
-
- =head1 SEE ALSO
-
- perl(1)
-
- =head1 DIAGNOSTICS
-
- The usual warnings if it can't read or write the files involved.
-
- =head1 BUGS
-
- Doesn't construct the %sizeof array for you.
-
- It doesn't handle all C constructs, but it does attempt to isolate
- definitions inside evals so that you can get at the definitions
- that it can translate.
-
- It's only intended as a rough tool.
- You may need to dicker with the files produced.
-
- =cut
-
-