Top Level Namespace

Defined Under Namespace

Modules: Builtins, Chitin, Kernel Classes: Array, Class, Coolline, Fixnum, IO, Object, Replay, String, Symbol

Instance Method Summary collapse

Instance Method Details

#incomplete_string(string) ⇒ Object

Is this an incomplete string? If so, return the string character that it uses. Else return false.



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# File 'lib/chitin/support.rb', line 23

def incomplete_string(string)
  return '"' unless syntax_error_for(string + '"')
  return "'" unless syntax_error_for(string + '\'')
  return false
end

#need(file) ⇒ Object 



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# File 'lib/chitin.rb', line 1

def need(file)
  require(File.dirname(File.expand_path(__FILE__)) + '/' + file)
end

#proper_string(val) ⇒ Object 



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# File 'lib/chitin/support.rb', line 1

def proper_string(val)
  # if there is an unclosed string, close it and run it again.
  # smart compilers are bad... but this ain't a compiler
  if (e = syntax_error_for(val)) &&
     e.message =~ /unterminated string meets end of file/

    if syntax_error_for(val + '\'')
      unless syntax_error_for(val + '"')
        val << '"'
      end
    else
      val << '\''
    end

  end

  val
end

#shellsplit_keep_quotes(line) ⇒ Object 



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# File 'lib/chitin/support.rb', line 37

def shellsplit_keep_quotes(line)
  words = []
  field = ''
  line.scan(/\G\s*(?>([^\s\\\'\"]+)|('[^\']*')|("(?:[^\"\\]|\\.)*")|(\\.?)|(\S))(\s|\z)?/m) do
    |word, sq, dq, esc, garbage, sep|
    raise ArgumentError, "Unmatched double quote: #{line.inspect}" if garbage
    field << (word || sq || (dq || esc).gsub(/\\(.)/, '\\1'))
    if sep
      words << field
      field = ''
    end
  end
  words
end

#string_method(name) ⇒ Object 



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# File 'lib/chitin/tools/string_methods.rb', line 1

def string_method(name)
  Chitin::Builtins::PRIORITY_METHODS << name.to_sym
end

#syntax_error_for(code) ⇒ Object

If the code is syntactically correct, return nil. Else, return the error.



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# File 'lib/chitin/support.rb', line 31

def syntax_error_for(code) 
  eval "return nil\n#{code}" 
rescue SyntaxError => e
  e
end