# Example: basic usagerequire "../src/lexbor"puts Lexbor.versionpage = "<html><div class=aaa>bla</div></html>"lexbor = Lexbor::Parser.new(page)# html nodelexbor.root # (.html) Lexbor::Node?lexbor.root! # (.html!) Lexbor::Node# body nodelexbor.body # Lexbor::Node?lexbor.body! # Lexbor::Node# head nodelexbor.head # Lexbor::Node?lexbor.head! # Lexbor::Node# iterator over all div nodes from root scope# equal with lexbor.root!.scope.nodes(:div)lexbor.nodes(Lexbor::Lib::TagIdT::LXB_TAG_DIV) # Iterator::Collection(Lexbor::Node)lexbor.nodes(:div) # Iterator::Collection(Lexbor::Node)lexbor.nodes("div") # Iterator::Collection(Lexbor::Node)node = lexbor.nodes(:div).first # Lexbor::Node# methods:pp node.tag_id # => LXB_TAG_DIVpp node.tag_sym # => :divpp node.tag_name # => "div"pp node.is_tag_div? # => truepp node.attribute_by("class") # => "aaa"pp node.attributes # => {"class" => "aaa"}pp node.to_html # => "<div class=\"aaa\">bla</div>"pp node.inner_text # => "bla"pp node # => Lexbor::Node(:div, {"class" => "aaa"})# tree navigate methods (methods with !, returns not_nil! node):node.child # Lexbor::Node?, first child of nodenode.next # Lexbor::Node?, next node in the parent scopenode.parent # Lexbor::Node?, parent nodenode.prev # Lexbor::Node?, previous node in the parent scopenode.left # Lexbor::Node?, left node, in the html, from currentnode.right # Lexbor::Node?, right node, in the html, from currentnode.flat_right # Lexbor::Node?, right node, in the html, from current, without node.children# iterators:node.children # Iterator::Collection(Lexbor::Node), iterate over all direct node childrennode.parents # Iterator::Collection(Lexbor::Node), iterate over all node parents from current to root! nodenode.scope # Iterator::Collection(Lexbor::Node), iterate over all inner nodes (children and deeper)node.right_iterator # Iterator::Collection(Lexbor::Node), iterate from current node to right (to the end of document)node.left_iterator # Iterator::Collection(Lexbor::Node), iterate from current node to left (to the root! node)node.scope.nodes(:a) # Iterator::Collection(Lexbor::Node), select :a nodes in scope of `node`# free lexbor c object,# not really needed to call manyally, because called auto from GC finalize, when object not used anymore# use it only if need to free memory fast# after free any other child object like Lexbor::Node or Iterator::Collection(Lexbor::Node) not valid anymore and can lead to segfaultlexbor.free