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-rw-r--r--contrib/perl5/utils/h2ph.PL636
1 files changed, 636 insertions, 0 deletions
diff --git a/contrib/perl5/utils/h2ph.PL b/contrib/perl5/utils/h2ph.PL
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index 000000000000..066f2c9c3fe5
--- /dev/null
+++ b/contrib/perl5/utils/h2ph.PL
@@ -0,0 +1,636 @@
+#!/usr/local/bin/perl
+
+use Config;
+use File::Basename qw(basename dirname);
+use Cwd;
+
+# List explicitly here the variables you want Configure to
+# generate. Metaconfig only looks for shell variables, so you
+# have to mention them as if they were shell variables, not
+# %Config entries. Thus you write
+# $startperl
+# to ensure Configure will look for $Config{startperl}.
+# Wanted: $archlibexp
+
+# This forces PL files to create target in same directory as PL file.
+# This is so that make depend always knows where to find PL derivatives.
+$origdir = cwd;
+chdir dirname($0);
+$file = basename($0, '.PL');
+$file .= '.com' if $^O eq 'VMS';
+
+open OUT,">$file" or die "Can't create $file: $!";
+
+print "Extracting $file (with variable substitutions)\n";
+
+# In this section, perl variables will be expanded during extraction.
+# You can use $Config{...} to use Configure variables.
+
+print OUT <<"!GROK!THIS!";
+$Config{startperl}
+ eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
+ if \$running_under_some_shell;
+!GROK!THIS!
+
+# In the following, perl variables are not expanded during extraction.
+
+print OUT <<'!NO!SUBS!';
+
+use Config;
+use File::Path qw(mkpath);
+use Getopt::Std;
+
+getopts('Dd:rlhaQ');
+die "-r and -a options are mutually exclusive\n" if ($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+(.*)/) {
+ print OUT $t, "die(\"$1\");\n";
+ } elsif(/^warning\s+(.*)/) {
+ 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
+
+!NO!SUBS!
+
+close OUT or die "Can't close $file: $!";
+chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
+exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
+chdir $origdir;
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