module Pione::Util::EmbededExprExpander
Public Class Methods
expand(env, str)
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Expand embeded expressions in the string.
# File lib/pione/util/embeded-expr-expander.rb, line 5 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