Module: ZergXcode::Parser

Defined in:
lib/zerg_xcode/file_format/parser.rb

Overview

Parser for flattened object graphs stored in .xcodeproj files.

Class Method Summary collapse

Class Method Details

.parse(project_string) ⇒ Object 



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# File 'lib/zerg_xcode/file_format/parser.rb', line 13

def self.parse(project_string)
  tokens = ZergXcode::Lexer.tokenize project_string
  
  stack = [[]]
  tokens.each do |token|
    case token
    when '('
      stack << Array.new
    when '{'
      stack << Hash.new
    when ')', '}'
      last_object = stack.pop
      if stack.last.kind_of? Array
        stack.last << last_object
      elsif stack.last.kind_of? String
        hash_key = stack.pop
        stack.last[hash_key] = last_object
      end
    when Array
      token_string = token.first
      if stack.last.kind_of? Hash
        stack << token_string
      elsif stack.last.kind_of? Array
        stack.last << token_string
      elsif stack.last.kind_of? String
        key = stack.pop
        stack.last[key] = token_string
      else
        p stack
        raise 'WTFed'
      end
    when '=', ';', ','
    else
      raise "Unknown token #{token}"
    end
  end
  return stack[0][0]
end