# NAME Text::Xslate::AST::Walker - Filter Nodes in the AST made by Text::Xslate # SYNOPSIS use Text::Xslate::Parser; use Text::Xslate::AST::Walker; my $template = EOF; : my $first_name = 'Hanae'; Hello, <: $last_name :>, <: $first_name :>. EOF my $parser = Text::Xslate::Parser->new; my $nodes = $parser->parse($template); my $tw = Text::Xslate::AST::Walker->new(nodes => $nodes); my $undeclared_vars = $tw->search_descendants(sub { my ($node) = @_; ($node->arity eq 'variable') && !$node->is_defined && !$node->is_reserved; }); # DESCRIPTION Filter nodes in the AST which made by Text::Xslate. # LICENSE Copyright (C) aereal. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. # AUTHOR aereal