516 lines
14 KiB
Perl
516 lines
14 KiB
Perl
package HTML::Perlinfo::Common;
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use CGI qw(escapeHTML);
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our @ISA = qw(Exporter);
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our @EXPORT = qw(initialize_globals print_table_colspan_header print_table_row print_table_color_start print_table_color_end print_color_box print_table_row_color print_table_start print_table_end print_box_start print_box_end print_hr print_table_header print_section print_license add_link check_path check_args check_module_args perl_version release_date process_args error_msg match_string);
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require Exporter;
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use Carp ();
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our %links;
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%links = (
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'all' => 1,
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'local' => 0,
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'docs' => 1,
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);
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##### The following is lifted from File::Which 0.05 by Per Einar Ellefsen.
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##### The check_path sub uses the which sub.
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#############
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use File::Spec;
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my $Is_VMS = ($^O eq 'VMS');
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my $Is_MacOS = ($^O eq 'MacOS');
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my $Is_DOSish = (($^O eq 'MSWin32') or
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($^O eq 'dos') or
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($^O eq 'os2'));
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# For Win32 systems, stores the extensions used for
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# executable files
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# For others, the empty string is used
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# because 'perl' . '' eq 'perl' => easier
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my @path_ext = ('');
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if ($Is_DOSish) {
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if ($ENV{PATHEXT} and $Is_DOSish) { # WinNT. PATHEXT might be set on Cygwin, but not used.
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push @path_ext, split ';', $ENV{PATHEXT};
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}
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else {
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push @path_ext, qw(.com .exe .bat); # Win9X or other: doesn't have PATHEXT, so needs hardcoded.
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}
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}
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elsif ($Is_VMS) {
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push @path_ext, qw(.exe .com);
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}
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sub which {
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my ($exec) = @_;
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return undef unless $exec;
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my $all = wantarray;
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my @results = ();
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# check for aliases first
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if ($Is_VMS) {
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my $symbol = `SHOW SYMBOL $exec`;
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chomp($symbol);
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if (!$?) {
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return $symbol unless $all;
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push @results, $symbol;
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}
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}
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if ($Is_MacOS) {
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my @aliases = split /\,/, $ENV{Aliases};
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foreach my $alias (@aliases) {
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# This has not been tested!!
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# PPT which says MPW-Perl cannot resolve `Alias $alias`,
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# let's just hope it's fixed
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if (lc($alias) eq lc($exec)) {
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chomp(my $file = `Alias $alias`);
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last unless $file; # if it failed, just go on the normal way
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return $file unless $all;
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push @results, $file;
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# we can stop this loop as if it finds more aliases matching,
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# it'll just be the same result anyway
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last;
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}
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}
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}
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my @path = File::Spec->path();
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unshift @path, File::Spec->curdir if $Is_DOSish or $Is_VMS or $Is_MacOS;
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for my $base (map { File::Spec->catfile($_, $exec) } @path) {
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for my $ext (@path_ext) {
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my $file = $base.$ext;
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if ((-x $file or # executable, normal case
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($Is_MacOS || # MacOS doesn't mark as executable so we check -e
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($Is_DOSish and grep { $file =~ /$_$/i } @path_ext[1..$#path_ext])
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# DOSish systems don't pass -x on non-exe/bat/com files.
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# so we check -e. However, we don't want to pass -e on files
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# that aren't in PATHEXT, like README.
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and -e _)
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) and !-d _)
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{ # and finally, we don't want dirs to pass (as they are -x)
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return $file unless $all;
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push @results, $file; # Make list to return later
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}
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}
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}
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if($all) {
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return @results;
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} else {
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return undef;
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}
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}
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## End File::Which code
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sub check_path {
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return add_link('local', which("$_[0]")) if which("$_[0]");
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return "<i>not in path</i>";
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}
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sub match_string {
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my($module_name, $string) = @_;
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my $result = 0;
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my @string = (ref $string eq 'ARRAY') ? @$string : ($string);
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foreach(@string) {
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$result = index(lc($module_name), lc($_));
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last if ($result != -1);
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}
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return ($result == -1) ? 0 : 1;
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}
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sub perl_version {
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my $version;
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if ($] >= 5.006) {
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$version = sprintf "%vd", $^V;
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}
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else { # else time to update Perl!
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$version = "$]";
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}
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return $version;
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}
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sub release_date {
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# when things escaped
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%released = (
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5.000 => '1994-10-17',
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5.001 => '1995-03-14',
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5.002 => '1996-02-96',
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5.00307 => '1996-10-10',
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5.004 => '1997-05-15',
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5.005 => '1998-07-22',
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5.00503 => '1999-03-28',
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5.00405 => '1999-04-29',
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5.006 => '2000-03-22',
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5.006001 => '2001-04-08',
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5.007003 => '2002-03-05',
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5.008 => '2002-07-19',
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5.008001 => '2003-09-25',
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5.009 => '2003-10-27',
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5.008002 => '2003-11-05',
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5.006002 => '2003-11-15',
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5.008003 => '2004-01-14',
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5.00504 => '2004-02-23',
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5.009001 => '2004-03-16',
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5.008004 => '2004-04-21',
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5.008005 => '2004-07-19',
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5.008006 => '2004-11-27',
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5.009002 => '2005-04-01',
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5.008007 => '2005-05-30',
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5.009003 => '2006-01-28',
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5.008008 => '2006-01-31',
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5.009004 => '2006-08-15',
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5.009005 => '2007-07-07',
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5.010000 => '2007-12-18',
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);
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# Do we have Module::Corelist
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eval{require Module::CoreList};
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if ($@) { # no
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return ($released{$]}) ? $released{$]} : "unknown";
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}
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else { # yes
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return ($Module::CoreList::released{$]}) ? $Module::CoreList::released{$]} : "unknown";
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}
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}
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sub check_args {
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my ($key, $value) = @_;
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my ($message, %allowed);
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@allowed{qw(docs local 0 1)} = ();
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if (not exists $allowed{$key}) {
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$message = "$key is an invalid links parameter";
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}
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elsif ($key =~ /(?:docs|local)/ && $value !~ /^(?:0|1)$/i) {
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$message = "$value is an invalid value for the $key parameter in the links attribute";
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}
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error_msg("$message") if $message;
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}
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sub check_module_args {
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my ($key, $value) = @_;
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my ($message, %allowed);
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@allowed{qw(from columns sort_by color link show_only section full_page show_inc show_dir files_in)} = ();
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if (not exists $allowed{$key}) {
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$message = "$key is an invalid print_modules parameter";
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}
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elsif ($key eq 'sort_by' && $value !~ /^(?:name|version)$/i) {
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$message = "$value is an invalid sort";
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}
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elsif ($key =~ /^(?:color|link|columns|files_in)$/ && ref($value) ne 'ARRAY') {
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$message = "The $key parameter value is not an array reference";
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}
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elsif ($key eq 'columns' && grep(!/^(?:name|version|desc|path|core)$/, @{$value})) {
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$message = "Invalid column name in the $key parameter";
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}
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elsif ($key eq 'color' && @{$value} <= 1) {
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$message = "You didn't specify a module to color";
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}
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elsif ($key eq 'link' && @{$value} <= 1 && $value->[0] != 0) {
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$message = "You didn't provide a URL for the $key parameter";
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}
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elsif ($key eq 'show_only' && (ref($value) ne 'ARRAY') && lc $value ne 'core') {
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$message = "$value is an invalid value for the $key parameter";
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}
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elsif ($key eq 'full_page' && $value != 0 && $value != 1 ) {
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$message = "$value is an invalid value for the $key parameter";
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}
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elsif ($key eq 'link' && ($value->[0] ne 'all' && $value->[0] != 0 && ref($value->[0]) ne 'ARRAY')) {
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$message = "Invalid first element in the $key parameter value";
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}
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error_msg("$message") if $message;
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}
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sub process_args {
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# This sub returns a hash ref containing param args
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my %params;
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my $sub = pop @_ || die "No coderef provided\n"; # get the sub
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if (defined $_[0]) {
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while(my($key, $value) = splice @_, 0, 2) {
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$sub->($key, $value);
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if (exists $params{$key}){
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@key_value = ref(${$params{$key}}[0]) eq 'ARRAY' ? @{$params{$key}} : $params{$key};
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push @key_value,$value;
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$new_val = [@key_value];
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$params{$key} = $new_val;
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}
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else {
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$params{$key} = $value;
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}
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}
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}
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return \%params;
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}
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sub error_msg {
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local $Carp::CarpLevel = $Carp::CarpLevel + 1;
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Carp::croak "User error: $_[0]";
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}
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# HTML subs
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sub print_table_colspan_header {
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return sprintf("<tr class=\"h\"><th colspan=\"%d\">%s</th></tr>\n", $_[0], $_[1]);
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}
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sub print_table_row {
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my $num_cols = $_[0];
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my $HTML = "<tr>";
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for ($i=0; $i<$num_cols; $i++) {
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$HTML .= sprintf("<td class=\"%s\">", ($i==0 ? "e" : "v" ));
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my $row_element = $_[$i+1];
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if ((not defined ($row_element)) || ($row_element !~ /\S/)) {
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$HTML .= "<i>no value</i>";
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} else {
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my $elem_esc;
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if ($row_element eq "<i>no value</i>") {
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$elem_esc = $row_element;
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} else {
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$elem_esc = escapeHTML($row_element);
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}
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$HTML .= "$elem_esc";
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}
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$HTML .= " </td>";
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}
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$HTML .= "</tr>\n";
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return $HTML;
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}
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sub print_table_color_start {
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return qq~<table class="modules" cellpadding=4 cellspacing=4 border=0 width="600"><tr>\n~;
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}
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sub print_table_color_end {
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return '</tr></table>';
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}
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sub print_color_box {
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return qq ~<td>
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<table border=0>
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<tr><td>
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<table class="modules" border=0 width=50 height=50 align=left bgcolor="$_[0]">
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<tr bgcolor="$_[0]">
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<td color="$_[0]">
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</td>
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</tr>
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</table>
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</tr></td>
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<tr><td><small>$_[1]</small></td></tr>
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</table>
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</td>~;
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}
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sub print_table_row_color {
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my $num_cols = $_[0];
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my $HTML = $_[1] ? "<tr bgcolor=\"$_[1]\">" : "<tr>";
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for ($i=0; $i<$num_cols; $i++) {
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$HTML .= $_[1] ? "<td bgcolor=\"$_[1]\">" : sprintf("<td class=\"%s\">", ($i==0 ? "e" : "v" ));
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my $row_element = $_[$i+2]; # start at the 2nd element
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if ((not defined ($row_element)) || ($row_element !~ /\S/)) {
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$HTML .= "<i>no value</i>";
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} else {
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my $elem_esc = $row_element;
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$HTML .= "$elem_esc";
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}
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$HTML .= " </td>";
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}
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$HTML .= "</tr>\n";
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return $HTML;
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}
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sub print_table_start {
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return "<table border=\"0\" cellpadding=\"3\" width=\"600\">\n";
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}
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sub print_table_end {
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return "</table><br />\n";
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}
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sub print_box_start {
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my $HTML = print_table_start();
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$HTML .= ($_[0] == 1) ? "<tr class=\"h\"><td>\n" : "<tr class=\"v\"><td>\n";
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return $HTML;
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}
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sub print_box_end {
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my $HTML = "</td></tr>\n";
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$HTML .= print_table_end();
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return $HTML;
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}
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sub print_hr {
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return "<hr />\n";
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}
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sub print_table_header {
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my($num_cols) = $_[0];
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my $HTML = "<tr class=\"h\">";
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my $i;
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for ($i=0; $i<$num_cols; $i++) {
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my $row_element = $_[$i+1];
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$row_element = " " if (!$row_element);
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$HTML .= "<th>$row_element</th>";
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}
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return "$HTML</tr>\n";
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}
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sub print_section {
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return "<h2>" . $_[0] . "</h2>\n";
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}
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sub print_perl_license {
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return <<"END_OF_HTML";
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<p>
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This program is free software; you can redistribute it and/or modify it under the terms of
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either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit.
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</p>
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<p>
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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</p>
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<p>
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Complete documentation for Perl, including FAQ lists, should be found on
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this system using `man perl' or `perldoc perl'. If you have access to the
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Internet, point your browser at @{[ add_link('same', 'http://www.perl.org/')]}, the Perl directory.
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</p>
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END_OF_HTML
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}
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sub print_license {
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return join '', print_section("Perl License"),
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print_box_start(0),
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print_perl_license(),
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print_box_end();
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}
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sub add_link {
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my ($type, $value, $link) = @_;
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return $value unless $links{'all'};
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if ($type eq "cpan") {
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return $value if $link && $link->[0] =~ /^[0]$/;
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if ($link) {
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if (ref $link->[0] eq 'ARRAY' && ref $link->[1] ne 'ARRAY') {
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foreach (@{$link->[0]}) {
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if ($_ eq 'all' or match_string($value,$_)==1) {
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return '<a href=' . $link->[1] . $value .
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qq~ title="Click here to see $value documentation [Opens in a new window]"
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target="_blank">$value</a> ~
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}
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}
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}
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elsif (ref $link->[0] eq 'ARRAY' && ref $link->[1] eq 'ARRAY'){
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foreach my $lv (@$link) {
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if (ref $lv->[0] eq 'ARRAY') {
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foreach(@{$lv->[0]}) {
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if ($_ eq 'all' or match_string($value,$_)==1) {
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return '<a href=' . $lv->[1] . $value .
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qq~ title="Click here to see $value documentation [Opens in a new window]"
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target="_blank">$value</a> ~
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}
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}
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}
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else {
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if ($lv->[0] eq 'all' or match_string($value,$lv->[0])==1) {
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return '<a href=' . $lv->[1] . $value .
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qq~ title="Click here to see $value documentation [Opens in a new window]"
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target="_blank">$value</a> ~
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}
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}
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}
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}
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elsif ($link->[0] eq 'all' or match_string($value,$link->[0])==1) {
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return '<a href=' . $link->[1] . $value .
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qq~ title="Click here to see $value documentation [Opens in a new window]"
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target="_blank">$value</a> ~
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}
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}
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return qq~ <a href="http://search.cpan.org/perldoc?$value"
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title="Click here to see $value on CPAN [Opens in a new window]" target="_blank">$value</a> ~;
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}
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elsif ($type eq "config") {
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return $value unless $links{'docs'};
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my ($letter) = $value =~ /^(.)/;
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return qq! <a href="http://search.cpan.org/~aburlison/Solaris-PerlGcc-1.3/config/5.006001/5.10/sparc/Config.pm#$letter">$value</a> !;
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}
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elsif ($type eq "local") {
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return $value unless $links{'local'};
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return qq~ <a href="file://$value" title="Click here to see $value [Opens in a new window]" target="_blank">$value</a> ~;
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}
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elsif ($type eq "same") {
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return qq~ <a href="$value">$value</a> ~;
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}
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}
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1;
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