diff options
Diffstat (limited to 'contrib/perl5/utils/h2ph.PL')
-rw-r--r-- | contrib/perl5/utils/h2ph.PL | 746 |
1 files changed, 0 insertions, 746 deletions
diff --git a/contrib/perl5/utils/h2ph.PL b/contrib/perl5/utils/h2ph.PL deleted file mode 100644 index 6f012dc..0000000 --- a/contrib/perl5/utils/h2ph.PL +++ /dev/null @@ -1,746 +0,0 @@ -#!/usr/local/bin/perl -# $FreeBSD$ - -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 $Config{perlpath} -S \$0 \${1+"\$@"}' - if \$running_under_some_shell; -!GROK!THIS! - -# In the following, perl variables are not expanded during extraction. - -print OUT <<'!NO!SUBS!'; - -use strict; - -use Config; -use File::Path qw(mkpath); -use Getopt::Std; - -getopts('Dd:rlhaQ'); -use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q); -die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a); -my @inc_dirs = inc_dirs() if $opt_a; - -my $Exit = 0; - -my $Dest_dir = $opt_d || $Config{installarchlib}; -die "Destination directory $Dest_dir doesn't exist or isn't a directory\n" - unless -d $Dest_dir; - -my @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 - -my %isatype; -@isatype{@isatype} = (1) x @isatype; -my $inif = 0; -my %Is_converted; - -@ARGV = ('-') unless @ARGV; - -build_preamble_if_necessary(); - -my ($t, $tab, %curargs, $new, $eval_index, $dir, $name, $args, $outfile); -my ($incl, $next); -while (defined (my $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: $!\n"; - } - - print OUT "require '_h2ph_pre.ph';\n\n"; - while (<IN>) { - chop; - while (/\\$/) { - 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 my $arg (split(/,\s*/,$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(\&$name);\n"; - } - } else { - # Shunt around such directives as `#define FOO FOO': - next if " \&$name" eq $new; - - 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(/^error\s+(.*)/) { - print OUT $t, "die(\"", quotemeta($1), "\");\n"; - } elsif(/^warning\s+(.*)/) { - print OUT $t, "warn(\"", quotemeta($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?;/; - (my $enum_subs = $3) =~ s/\s//g; - my @enum_subs = split(/,/, $enum_subs); - my $enum_val = -1; - foreach my $enum (@enum_subs) { - my ($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 { - my $joined_args; - if(keys(%curargs)) { - $joined_args = join('|', keys(%curargs)); - } - while ($_ 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 { - my $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 { - my $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}); -} - - -# Create "_h2ph_pre.ph", if it doesn't exist or was built by a different -# version of h2ph. -sub build_preamble_if_necessary -{ - # Increment $VERSION every time this function is modified: - my $VERSION = 2; - my $preamble = "$Dest_dir/_h2ph_pre.ph"; - - # Can we skip building the preamble file? - if (-r $preamble) { - # Extract version number from first line of preamble: - open PREAMBLE, $preamble or die "Cannot open $preamble: $!"; - my $line = <PREAMBLE>; - $line =~ /(\b\d+\b)/; - close PREAMBLE or die "Cannot close $preamble: $!"; - - # Don't build preamble if a compatible preamble exists: - return if $1 == $VERSION; - } - - my (%define) = _extract_cc_defines(); - - open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!"; - print PREAMBLE "# This file was created by h2ph version $VERSION\n"; - - foreach (sort keys %define) { - if ($opt_D) { - print PREAMBLE "# $_=$define{$_}\n"; - } - - if ($define{$_} =~ /^\d+$/) { - print PREAMBLE - "unless (defined &$_) { sub $_() { $define{$_} } }\n\n"; - } elsif ($define{$_} =~ /^\w+$/) { - print PREAMBLE - "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n"; - } else { - print PREAMBLE - "unless (defined &$_) { sub $_() { \"", - quotemeta($define{$_}), "\" } }\n\n"; - } - } - close PREAMBLE or die "Cannot close $preamble: $!"; -} - - -# %Config contains information on macros that are pre-defined by the -# system's compiler. We need this information to make the .ph files -# function with perl as the .h files do with cc. -sub _extract_cc_defines -{ - my %define; - my $allsymbols = join " ", - @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'}; - - # Split compiler pre-definitions into `key=value' pairs: - foreach (split /\s+/, $allsymbols) { - /(.+?)=(.+)/ and $define{$1} = $2; - - if ($opt_D) { - print STDERR "$_: $1 -> $2\n"; - } - } - - return %define; -} - - -1; - -############################################################################## -__END__ - -=head1 NAME - -h2ph - convert .h C header files to .ph Perl header files - -=head1 SYNOPSIS - -B<h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]> - -=head1 DESCRIPTION - -I<h2ph> -converts any C header files specified to the corresponding Perl header file -format. -It is most easily run while in /usr/include: - - cd /usr/include; h2ph * sys/* - -or - - cd /usr/include; h2ph -r -l . - -The output files are placed in the hierarchy rooted at Perl's -architecture dependent library directory. You can specify a different -hierarchy with a B<-d> switch. - -If run with no arguments, filters standard input to standard output. - -=head1 OPTIONS - -=over 4 - -=item -d destination_dir - -Put the resulting B<.ph> files beneath B<destination_dir>, instead of -beneath the default Perl library location (C<$Config{'installarchlib'}>). - -=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>. - -=item -Q - -``Quiet'' mode; don't print out the names of the files being converted. - -=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. - -You have to run this program by hand; it's not run as part of the Perl -installation. - -Doesn't handle complicated expressions built piecemeal, a la: - - enum { - FIRST_VALUE, - SECOND_VALUE, - #ifdef ABC - THIRD_VALUE - #endif - }; - -Doesn't necessarily locate all of your C compiler's internally-defined -symbols. - -=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; |