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package A3C::PHP; |
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use warnings; |
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use strict; |
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use Parse::RecDescent; |
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use Data::Dump qw/dump/; |
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use File::Slurp; |
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use Encode qw/decode/; |
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=head1 NAME |
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A3C::PHP |
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=head1 DESCRIPTION |
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For integration with php application there is simple php config |
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parser based on L<PHP::Include::Vars> |
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It currently ignores C<include> PHP function. |
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=head1 CONFIG |
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$A3C::PHP::debug = 0; |
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$A3C::PHP::charset = 'iso-8859-2'; |
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=head1 METHODS |
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=cut |
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our $debug = 0; |
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our $charset = 'iso-8859-2'; |
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our $perl = ''; |
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our $data; |
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my $grammar = |
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<<'GRAMMAR'; |
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php_vars: php_start statement(s) php_end |
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php_start: /\s*<\?(php)?\s*/ |
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php_end: /\s*\?>\s*/ |
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statement: comment | assignment | function |
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comment: /\s*(\#|\/\/).*/ |
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function: /(include)\(.*?\)\s*;/ |
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{ |
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$return = "## ignored $1\n"; |
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} |
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assignment: ( var_assign | hash_assign | array_assign | constant ) /;/ |
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{ |
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$A3C::PHP::perl .= $item[1]; |
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} |
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var_assign: variable /=/ scalar |
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{ |
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$item[1] =~ s/^\$//; |
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$return = "\$data->{ $item[1] } = $item[3]; # scalar\n"; |
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} |
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hash_assign: variable /=/ /Array\s*\(/i pair(s /,/) /\s*(,\s*)?\)/ |
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{ |
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$item[1] =~ s/^\$//; |
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$return = "\$data->{ $item[1] } = $item[4]; # hash\n"; |
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$return = "\%{\$data->{ $item[1] }} =(" . join( ',', @{$item[4]} ) . ");\t# hash\n"; |
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} |
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array_assign: variable /=/ /Array\s*\(/i element(s /,/) /\s*(,\s*)?\)/ |
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{ |
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$item[1] =~ s/^\$//; |
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$return = "\@{\$data->{ $item[1] }}=(" . join( ',', @{$item[4]} ) . ");\t# array\n" |
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} |
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scalar: string | number | constant |
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constant: true | false |
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true: 'true' |
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$return = '1'; |
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} |
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false: 'false' |
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{ |
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$return = '0'; |
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} |
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variable: /\$[a-zA-Z_][0-9a-zA-Z_]*/ |
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number: /-?[0-9.]+/ |
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string: double_quoted | single_quoted |
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double_quoted: /"(\\"|[^"])*?"/ |
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$item[1] =~ s/\@/\\\@/g; |
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$return = $item[1]; |
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} |
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single_quoted: /'(\\'|[^'])*?'/ |
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element: scalar | bareword |
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pair: scalar /=>/ ( scalar | bareword ) |
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$return = $item[1] . '=>' . $item[3]; |
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} |
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bareword: /[0-9a-zA-Z_]+/ |
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constant: /define\s*\(/ string /,/ scalar /\)/ |
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{ |
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$return = "use constant $item[2] => $item[4];\n"; |
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} |
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comments: /^#.*$/ |
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whitespace: /^\s+$/ |
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GRAMMAR |
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=head1 parse |
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my $data = A3C::PHP->parse( $php_code ); |
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=cut |
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sub parse { |
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my $self = shift; |
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my $php = shift or die "no php?"; |
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$perl = ''; |
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if ( $debug ) { |
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$::RD_TRACE = 1; |
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warn "PHP [$charset]: $php\n"; |
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} |
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my $parser = Parse::RecDescent->new( $grammar ); |
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$parser->php_vars( decode($charset,$php) ); |
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warn "## GENERATED PERL:\n\n", $perl, "\n\n" if $debug; |
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my $data; |
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eval $perl; |
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die "$@" if $@; |
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return $data; |
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} |
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=head1 parse_file |
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my $data = A3C::PHP->parse_file( '/path/to/code.php' ); |
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=cut |
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sub parse_file { |
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my $self = shift; |
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$self->parse( scalar read_file( shift )); |
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} |
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=head1 SEE ALSO |
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=over 4 |
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=item * PHP::Include |
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=item * Parse::RecDescent |
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=back |
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=head1 AUTHORS |
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=over 4 |
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=item * Ed Summers <ehs@pobox.com> wrote L<PHP::Include> on which this code is based |
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=cut |
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1; |