Compiler::Lexer

NAME

Compiler::Lexer - Lexical Analyzer for Perl5

SYNOPSIS

  use Compiler::Lexer;
  use Data::Dumper;
  my $filename = $ARGV[0];
  open my $fh, '<', $filename or die "Cannot open $filename: $!";
  my $script = do { local $/; <$fh> };
  my $lexer = Compiler::Lexer->new($filename);
  my $tokens = $lexer->tokenize($script);
  print Dumper $tokens;
  my $modules = $lexer->get_used_modules($script);
  print Dumper $modules;

METHODS

my $lexer = Compiler::Lexer->new($options);

create new instance. You can create object from $options in hash reference. options list

$lexer->tokenize($script);

get token objects includes parameter of 'name' or 'type' or 'line' and so on. This method requires perl source code in string.

$lexer->set_library_path(['path1', 'path2' ...])

set libraries path for reading recursively. Default paths are @INC.

$lexer->recursive_tokenize($script)

get hash reference like { 'module_nameA' => [], 'module_nameB' => [] ... }. This method requires per source code in string.

$lexer->get_used_modules($script);

get names of used module. This method requires perl source code in string.

AUTHOR

Masaaki Goshima (goccy) <goccy(at)cpan.org>

CONTRIBUTORS

tokuhirom: Tokuhiro Matsuno

LICENSE AND COPYRIGHT

Copyright (c) 2013, Masaaki Goshima (goccy). All rights reserved. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.