Class: EJX::Template::BalanceScanner

Inherits:
Object
  • Object
show all
Includes:
StreamParser
Defined in:
lib/ejx/template/balance_scanner.rb

Constant Summary collapse

BALANCE = 
{
  "}" => "{",
  ")" => "(",
  "{" => "}",
  "(" => ")",
}

Instance Method Summary collapse

Instance Method Details

#parse(stack = []) ⇒ Object 



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# File 'lib/ejx/template/balance_scanner.rb', line 11

def parse(stack = [])
  while !eos?
    if match = scan_until(/[\(\)\{\}\"\'\`]/)
      case match[0]
      when "}", ")"
        if stack.last == BALANCE[match[0]]
          stack.pop
        else
          stack << match[0]
        end
      when "\"", "'", "`"
        quoted_value(match[0])
      else
        stack << match[0]
      end
    end
  end
  
  stack
end