module Pione module Util module EmbededExprExpander # Expand embeded expressions in the string. def self.expand(env, str) return nil if str.nil? # parse and transform str.gsub(/\{(\$.+?)\}|\<\?\s*(.+?)\s*\?>/) do tree = Lang::DocumentParser.new.expr.parse($1 || $2) expr = Lang::DocumentTransformer.new.apply(tree, {package_name: nil, filename: nil}) expr.eval(env).call_pione_method(env, "textize", []).value end end end end end