lemonldap-ng/scripts/DoxyGen/PerlFilter.pm
2012-02-28 22:48:20 +00:00

474 lines
15 KiB
Perl

# =======================================================================
# Doxygen Pre-Processor for Perl
# Copyright (C) 2002 Bart Schuller
# Copyright (C) 2006 Phinex Informatik AG
# All Rights Reserved
#
# Doxygen Filter is free software; you can redistribute it and/or modify
# it under the same terms as Perl itself.
#
# Larry Wall's 'Artistic License' for perl can be found in
# http://www.perl.com/pub/a/language/misc/Artistic.html
#
# =======================================================================
#
# Author: Aeby Thomas, Phinex Informatik AG,
# Based on DoxygenFilter from Bart Schuller
# E-Mail: tom.aeby@phinex.ch
#
# Phinex Informatik AG
# Thomas Aeby
# Kirchweg 52
# 1735 Giffers
#
# =======================================================================
#
# @(#) $Id: PerlFilter.pm,v 1.4 2006/01/31 17:46:06 aeby Exp $
#
# Revision History:
#
# $Log: PerlFilter.pm,v $
# Revision 1.4 2006/01/31 17:46:06 aeby
# filter(): avoid warnings about uninitialized values
# analyze_sub(): added some more argument recognition patterns
#
# Revision 1.3 2006/01/31 16:53:52 aeby
# added copyright info
#
#
# =======================================================================
## @file
# implementation of DoxyGen::PerlFilter.
#
## @class
# Filter from perl syntax API docs to Doxygen-compatible syntax.
# This class is meant to be used as a filter for the
# <a href="http://www.doxygen.org/">Doxygen</a> documentation tool.
package DoxyGen::PerlFilter;
use warnings;
use strict;
use base qw(DoxyGen::Filter);
my $id = __PACKAGE__;
## @method void filter($infh)
# Do the filtering.
# @param infh input filehandle, normally STDIN
sub filter {
my ( $self, $infile ) = @_;
open( my $infh, $infile );
my $current_class = "";
my $file = [];
my $endMark = 1;
my ( $cc, $cl, $lc, $ll ) = ( 0, 0, 0, 0 );
while (<$infh>) {
$endMark = 0 if (/^\s*use\s+AutoLoader/);
last if ( $endMark and /^__END__$/ );
#next if (/^$/);
$cc = ( /^\s*#/ ? 1 : 0 );
$lc = ( /[\{\}\[\];]\s*$/ ? 1 : 0 );
if ( $cc or $cl or $ll or not(@$file) ) {
push( @$file, $_ );
}
else {
$file->[ $#{$file} ] =~ s/[\r\n]/ /g;
$file->[ $#{$file} ] .= $_;
}
$cl = $cc;
$ll = $lc;
$cl++ if (/\s#/);
}
#print STDERR @$file;
$self->file_contents($file);
my $objcontext =
grep( /^\s*use\s+base\s/, @$file )
|| grep( /\@ISA/, @$file )
|| grep( /^\s*bless/, @$file )
|| grep( /^\s*sub\s+new\s/, @$file )
|| grep( /\$self/, @$file );
push( @$file, "" ); # in order to have a delimiting empty line at EOF
for ( my $line = 0 ; $line <= $#$file ; ) {
$_ = $file->[ $line++ ];
last if ( $endMark and /^__END__$/ );
if (/^##\s*\@(\S+)\s*(.*)/) {
my ( $command, $args ) = ( $1, $2 );
my @more;
while ( $_ = $file->[ $line++ ] ) {
if (/^#\s?(.+)/s) {
push @more, $1;
}
else {
last;
}
}
if ( $command eq 'file' ) {
$args ||= $infile;
$self->start("\@$command $args");
$self->more(@more);
$self->end;
}
elsif ( $command eq 'class' ) {
$objcontext = 1;
unless ($args) {
($args) = /package\s(.*);/;
}
if ($current_class) {
$self->flush;
$self->print("};\n");
}
$current_class = $args;
die "$line $command $args" unless($args);
$self->emit_class( $args, $line,
[ "\@$command $args", @more, "\@nosubgrouping" ] );
}
elsif ( $command eq 'imethod' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push(
$self->protection($args) . ' Initialization Methods' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'apmethod' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push( $self->protection($args)
. ' Authentication Process Methods' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'rmethod' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push( $self->protection($args) . ' Running Methods' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'cmethod' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push( $self->protection($args) . ' Class Methods' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'ifn' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push(
$self->protection($args) . ' Initialization Functions' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'rfn' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push( $self->protection($args) . ' Running Functions' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'fn' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push( $self->protection($args) . ' Functions' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'method' ) {
unless ($args) {
($args) = $self->analyze_sub( $line - 1 );
}
$args = $self->munge_parameters($args);
$self->push( $self->protection($args) . ' Object Methods' );
$self->start("\@fn $args")->more(@more)->end;
$self->print( $args, ";\n" );
$self->pop;
}
elsif ( $command eq 'enum' ) {
$self->start("\@$command $args");
$self->more(@more);
$self->end;
$self->print("$command $args;\n");
}
else {
$self->start("\@$command $args");
$self->more(@more);
$self->end;
}
# We ate a line when we got the rest of the comment lines
redo if defined $_;
}
elsif (/^use\s+([\w:]+)/) {
my $inc = $1;
#$inc =~ s/::/\//g;
$self->print("#include \"$inc.pm\"\n");
}
elsif (/^package\s+([\w:]+)/) {
if ($current_class) {
$self->flush;
$self->print("};\n");
}
next unless ($objcontext);
$current_class = $1;
$self->emit_class( $current_class, $line );
}
elsif (/^sub\s+([\w:]+)/) {
my ( $proto, $name, @args ) = $self->analyze_sub( $line - 1 );
if ( $current_class && @args && ( $args[0] eq "\$self" ) ) {
$self->push( $self->protection($proto) . ' Object Methods' );
$proto =~ s/\$self,*\s*//;
}
elsif ( $current_class && @args && ( $args[0] eq "\$self" ) ) {
$self->push(
$self->protection($proto) . ' Initialization Methods' );
$proto =~ s/\$self,*\s*//;
}
elsif (
$current_class
&& ( ( @args && ( $args[0] eq "\$class" ) )
|| ( $name eq "new" ) )
)
{
$self->push( $self->protection($proto) . ' Class Methods' );
}
else {
$self->push( $self->protection($proto) . ' Functions' );
}
$proto = $self->munge_parameters($proto);
$self->print( $proto, ";\n" );
$self->pop;
}
}
$self->flush();
if ($current_class) {
$self->print("};\n");
}
}
## @method @ analyze_sub( int line )
# analyzes a subroutine declaration starting at the given line. Tries
# to determine whicht arguments it takes.
#
# @param line The line number at which the sub starts
# @return A function prototype, the name of the function and a
# list of arguments it takes
sub analyze_sub {
my ( $self, $line ) = @_;
my $file = $self->file_contents();
$file->[$line] =~ /^sub\s+(.*)\{/;
my $name = $1;
my $proto;
my @args;
if ( $name =~ /^(.*)\s*\((.*)\)/ ) {
$name = $1;
$proto = $2;
}
else {
my $forward = 5;
for (
my $i = 0 ;
$forward && ( $i + $line <= $#$file ) && !$proto ;
$i++
)
{
$_ = $file->[ $i + $line ];
if (/^\s*my\s*\((.*)\)\s*=\s*\@_/) {
$proto = $1;
}
elsif (/^\s*(local|my)\s*([^\s]*)\s*=\s*shift\s*;/) {
push( @args, $2 );
}
elsif (/^\s*(local|my)\s*([^\s]*)\s*=\s*\$_\[\s*(\d+)\s*]/) {
$args[$3] = $2;
}
elsif (/shift\s*->\s*[a-z0-9_]+\(/) {
# assuming anonymously used shifted value is $self
push( @args, '$self' );
}
elsif ( /^\s*\n/ || /^\s*#/ ) {
;
}
elsif (/}/) {
$forward = 0;
}
else {
$forward--;
}
}
}
if ($proto) {
$proto =~ s/\s+//g;
$proto =~ s/,/, /g;
@args = split( ", ", $proto );
}
$name =~ s/\s+$//;
my $protection = "";
if ( substr( $name, 0, 1 ) eq "_" ) {
$protection = "protected";
}
return ( "$protection retval $name( " . join( ", ", @args ) . " )",
$name, @args );
}
## @method emit_class( string class, int line, arrayref doc )
# Emit one class definition. If the doc parameter is defined,
# emits the array as a comment just before the class definition,
# otherwise, only the class definition is emitted.
#
# @param class the name of the class
# @param line the current line number
# @param doc (optional) an array with comment lines
sub emit_class {
my ( $self, $class, $line, $doc ) = @_;
my ( @current_isa, @current_priv_isa, @current_include, %links );
my $file = $self->file_contents();
while ( $_ = $file->[ $line++ ] ) {
if (/^\s*(?:use base|\@ISA\s*=|\@${class}::ISA\s*=)\s+(.+);/) {
push @current_isa, eval $1;
$file->[ $line - 1 ] = "\n";
}
elsif (/^\s*(?:use|require)\s+([\w:]+)/) {
my $inc = $1;
$links{ $1 || 'public' }{$inc} = $2 . ( $3 ? "\n* $3" : '' )
if (
/#\s*link\s+(?:(private|protected|public)\s+)?(\S+)(?:\s+(.*))?\s*$/
);
push @current_priv_isa, $inc if (/#\s*inherits/);
$inc =~ s/::/\//g;
$inc =~
s#Lemonldap/NG/(\w+)#"lemonldap-ng-".lc($1)."/lib/Lemonldap/NG/$1"#e;
#print STDERR $inc;
push @current_include, $inc;
$file->[ $line - 1 ] = "\n";
}
elsif (/^package/) {
last;
}
elsif (/#\s*inherits\s+([\w:]+)/) {
push @current_priv_isa, $1;
}
elsif (
/#\s*link\s+([\w:]+)\s+(?:(private|protected|public)\s+)?(\S+)(?:\s+(.*))?\s*$/
)
{
$links{ $2 || 'public' }{$1} = $3 . ( $4 ? "\n* $4" : '' );
}
}
$self->print("#include \"$_.pm\"\n") foreach @current_include;
$self->print("\n");
if ($doc) {
$self->start( $doc->[0] );
$self->more( @$doc[ 1 .. $#$doc ] );
$self->end();
}
die unless($class);
$self->print("class $class");
if ( @current_isa or @current_priv_isa ) {
my @tmp;
@tmp = map { "public $_" } @current_isa;
if ( $ENV{COLLABORATIVE_GRAPH} ) {
foreach my $type (qw(public protected private)) {
push @tmp, map { "$type $_" } keys %{ $links{$type} };
}
}
push @tmp, map { "private $_" } @current_priv_isa;
$self->print( ":", join( ", ", @tmp ) );
}
$self->print(" {\n");
foreach my $target (qw(private protected public)) {
if ( $links{$target} ) {
$self->print("$target:\n");
foreach ( keys %{ $links{$target} } ) {
$self->print("/** \@var $_ $links{$target}{$_}\n");
$links{$target}{$_} =~ s/\n.*$//s;
$self->print("*/\n$_ $links{$target}{$_};\n");
}
}
}
$self->print("public:\n") unless ( $links{public} );
}
## @method arrayref file_contents( arrayref contents )
# set/get an array containing the whole input file, each
# line at one array index.
#
# @param contents (optional) file array ref
# @return The file array ref
sub file_contents {
my ( $self, $contents ) = @_;
$self->{"$id file"} = $contents if ( defined $contents );
return ( $self->{"$id file"} );
}
## @method munge_parameters($args)
# Munge the argument list. Because DoxyGen does not seem to handle $, @ and %
# as argument types properly, we replace them with full length strings.
#
# @param args String specifying anything after a directive
# @return Processed string.
sub munge_parameters {
my ( $this, $args ) = @_;
$args =~ s/\$\@/scalar_or_list /g;
$args =~ s/\@\$/scalar_or_list /g;
$args =~ s/\$/scalar /g;
$args =~ s/\@/list /g;
$args =~ s/\%/hash /g;
# my ($ret, $remainder) = ($args =~ /^\s*(\S+)(.+)/);
# if ($ret) {
# if ($ret eq '$') {
# $ret = 'scalar';
# } elsif ($ret eq '@') {
# $ret = 'list';
# } elsif ($ret eq '$@') {
# $ret = 'scalar_or_list';
# } elsif ($ret eq '@$') {
# $ret = 'list_or_scalar';
# }
#
# $args = "$ret$remainder";
# }
return $args;
}
1;