Module: NginxConfigParser::Scanner

Defined in:
lib/nginx_config_parser/scanner.rb

Defined Under Namespace

Classes: ConfigurationError

Class Method Summary collapse

Class Method Details

.parse(data) ⇒ Object 



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# File 'lib/nginx_config_parser/scanner.rb', line 14

def parse(data)
  # Stuff for Ragel
  data = data.unpack("c*") if data.is_a?(String)
  eof, stack = 0, []
  # The list of words to fill for identifiers and values
  words = []
  # The stack of contexts, used to accumulate data at
  # the appropriate level
  contexts = [Configuration.new]
  
# line 25 "src/scanner.rb"
class << self
	attr_accessor :_nginx_actions
	private :_nginx_actions, :_nginx_actions=
end
self._nginx_actions = [
	0, 1, 0, 1, 1, 1, 2, 1, 
	3, 1, 4, 1, 5, 1, 6, 1, 
	7, 1, 8, 1, 9, 1, 10, 1, 
	11, 1, 12, 1, 13, 1, 14, 1, 
	15
]

class << self
	attr_accessor :_nginx_key_offsets
	private :_nginx_key_offsets, :_nginx_key_offsets=
end
self._nginx_key_offsets = [
	0, 1, 5, 6, 11, 12, 13, 18, 
	21, 22, 23, 30, 35, 39, 42, 48
]

class << self
	attr_accessor :_nginx_trans_keys
	private :_nginx_trans_keys, :_nginx_trans_keys=
end
self._nginx_trans_keys = [
	10, 32, 40, 9, 13, 41, 32, 41, 
	123, 9, 13, 125, 10, 32, 35, 105, 
	9, 13, 32, 9, 13, 10, 102, 32, 
	35, 59, 123, 125, 9, 13, 32, 59, 
	123, 9, 13, 32, 125, 9, 13, 32, 
	9, 13, 10, 32, 59, 123, 9, 13, 
	32, 59, 123, 9, 13, 0
]

class << self
	attr_accessor :_nginx_single_lengths
	private :_nginx_single_lengths, :_nginx_single_lengths=
end
self._nginx_single_lengths = [
	1, 2, 1, 3, 1, 1, 3, 1, 
	1, 1, 5, 3, 2, 1, 4, 3
]

class << self
	attr_accessor :_nginx_range_lengths
	private :_nginx_range_lengths, :_nginx_range_lengths=
end
self._nginx_range_lengths = [
	0, 1, 0, 1, 0, 0, 1, 1, 
	0, 0, 1, 1, 1, 1, 1, 1
]

class << self
	attr_accessor :_nginx_index_offsets
	private :_nginx_index_offsets, :_nginx_index_offsets=
end
self._nginx_index_offsets = [
	0, 2, 6, 8, 13, 15, 17, 22, 
	25, 27, 29, 36, 41, 45, 48, 54
]

class << self
	attr_accessor :_nginx_indicies
	private :_nginx_indicies, :_nginx_indicies=
end
self._nginx_indicies = [
	2, 1, 3, 4, 3, 0, 5, 4, 
	5, 5, 6, 5, 4, 7, 6, 10, 
	9, 12, 13, 14, 12, 11, 12, 12, 
	15, 2, 1, 3, 16, 18, 19, 20, 
	21, 22, 18, 17, 23, 23, 23, 23, 
	17, 18, 25, 18, 24, 25, 25, 26, 
	10, 9, 9, 9, 9, 19, 25, 23, 
	23, 25, 17, 0
]

class << self
	attr_accessor :_nginx_trans_targs_wi
	private :_nginx_trans_targs_wi, :_nginx_trans_targs_wi=
end
self._nginx_trans_targs_wi = [
	6, 0, 6, 1, 2, 3, 4, 6, 
	10, 5, 10, 6, 7, 8, 9, 6, 
	6, 11, 12, 14, 10, 10, 15, 10, 
	10, 13, 10
]

class << self
	attr_accessor :_nginx_trans_actions_wi
	private :_nginx_trans_actions_wi, :_nginx_trans_actions_wi=
end
self._nginx_trans_actions_wi = [
	31, 0, 25, 0, 0, 0, 0, 21, 
	19, 0, 11, 23, 0, 5, 5, 29, 
	27, 0, 0, 5, 7, 9, 0, 13, 
	17, 0, 15
]

class << self
	attr_accessor :_nginx_to_state_actions
	private :_nginx_to_state_actions, :_nginx_to_state_actions=
end
self._nginx_to_state_actions = [
	0, 0, 0, 0, 0, 0, 1, 0, 
	0, 0, 1, 0, 0, 0, 0, 0
]

class << self
	attr_accessor :_nginx_from_state_actions
	private :_nginx_from_state_actions, :_nginx_from_state_actions=
end
self._nginx_from_state_actions = [
	0, 0, 0, 0, 0, 0, 3, 0, 
	0, 0, 3, 0, 0, 0, 0, 0
]

class << self
	attr_accessor :_nginx_eof_trans
	private :_nginx_eof_trans, :_nginx_eof_trans=
end
self._nginx_eof_trans = [
	1, 1, 1, 1, 1, 9, 0, 16, 
	17, 17, 0, 24, 25, 27, 24, 24
]

class << self
	attr_accessor :nginx_start
end
self.nginx_start = 6;
class << self
	attr_accessor :nginx_first_final
end
self.nginx_first_final = 6;
class << self
	attr_accessor :nginx_error
end
self.nginx_error = -1;

class << self
	attr_accessor :nginx_en_statement
end
self.nginx_en_statement = 10;
class << self
	attr_accessor :nginx_en_main
end
self.nginx_en_main = 6;

# line 68 "src/scanner.rl"
  
# line 176 "src/scanner.rb"
begin
	p ||= 0
	pe ||= data.length
	cs = nginx_start
	top = 0
	ts = nil
	te = nil
	act = 0
end
# line 69 "src/scanner.rl"
  
# line 188 "src/scanner.rb"
begin
	_klen, _trans, _keys, _acts, _nacts = nil
	_goto_level = 0
	_resume = 10
	_eof_trans = 15
	_again = 20
	_test_eof = 30
	_out = 40
	while true
	_trigger_goto = false
	if _goto_level <= 0
	if p == pe
		_goto_level = _test_eof
		next
	end
	end
	if _goto_level <= _resume
	_acts = _nginx_from_state_actions[cs]
	_nacts = _nginx_actions[_acts]
	_acts += 1
	while _nacts > 0
		_nacts -= 1
		_acts += 1
		case _nginx_actions[_acts - 1]
			when 1 then
# line 1 "src/scanner.rl"
		begin
ts = p
		end
# line 1 "src/scanner.rl"
# line 219 "src/scanner.rb"
		end # from state action switch
	end
	if _trigger_goto
		next
	end
	_keys = _nginx_key_offsets[cs]
	_trans = _nginx_index_offsets[cs]
	_klen = _nginx_single_lengths[cs]
	_break_match = false
	
	begin
	  if _klen > 0
_lower = _keys
_upper = _keys + _klen - 1

loop do
   break if _upper < _lower
   _mid = _lower + ( (_upper - _lower) >> 1 )

   if data[p] < _nginx_trans_keys[_mid]
      _upper = _mid - 1
   elsif data[p] > _nginx_trans_keys[_mid]
      _lower = _mid + 1
   else
      _trans += (_mid - _keys)
      _break_match = true
      break
   end
end # loop
break if _break_match
_keys += _klen
_trans += _klen
	  end
	  _klen = _nginx_range_lengths[cs]
	  if _klen > 0
_lower = _keys
_upper = _keys + (_klen << 1) - 2
loop do
   break if _upper < _lower
   _mid = _lower + (((_upper-_lower) >> 1) & ~1)
   if data[p] < _nginx_trans_keys[_mid]
     _upper = _mid - 2
   elsif data[p] > _nginx_trans_keys[_mid+1]
     _lower = _mid + 2
   else
     _trans += ((_mid - _keys) >> 1)
     _break_match = true
     break
   end
end # loop
break if _break_match
_trans += _klen
	  end
	end while false
	_trans = _nginx_indicies[_trans]
	end
	if _goto_level <= _eof_trans
	cs = _nginx_trans_targs_wi[_trans]
	if _nginx_trans_actions_wi[_trans] != 0
		_acts = _nginx_trans_actions_wi[_trans]
		_nacts = _nginx_actions[_acts]
		_acts += 1
		while _nacts > 0
			_nacts -= 1
			_acts += 1
			case _nginx_actions[_acts - 1]
when 2 then
# line 1 "src/scanner.rl"
		begin
te = p+1
		end
# line 1 "src/scanner.rl"
when 3 then
# line 20 "src/scanner.rl"
		begin
te = p+1
 begin 
      name = words.shift
      values = words.dup
      contexts.last[name] = value_of(values)
      words.clear
      	begin
		top -= 1
		cs = stack[top]
		_trigger_goto = true
		_goto_level = _again
		break
	end

     end
		end
# line 20 "src/scanner.rl"
when 4 then
# line 31 "src/scanner.rl"
		begin
te = p+1
 begin  
     name = words.shift
      values = words.dup
      contexts << contexts.last.section(name, value_of(values))
      words.clear
      	begin
		stack[top] = cs
		top+= 1
		cs = 10
		_trigger_goto = true
		_goto_level = _again
		break
	end

     end
		end
# line 31 "src/scanner.rl"
when 5 then
# line 43 "src/scanner.rl"
		begin
te = p+1
		end
# line 43 "src/scanner.rl"
when 6 then
# line 28 "src/scanner.rl"
		begin
te = p
p = p - 1; begin  words << data[ts...te].pack('c*')  end
		end
# line 28 "src/scanner.rl"
when 7 then
# line 39 "src/scanner.rl"
		begin
te = p
p = p - 1; begin 
      contexts.pop
      	begin
		top -= 1
		cs = stack[top]
		_trigger_goto = true
		_goto_level = _again
		break
	end

     end
		end
# line 39 "src/scanner.rl"
when 8 then
# line 43 "src/scanner.rl"
		begin
te = p
p = p - 1;		end
# line 43 "src/scanner.rl"
when 9 then
# line 28 "src/scanner.rl"
		begin
 begin p = ((te))-1; end
 begin  words << data[ts...te].pack('c*')  end
		end
# line 28 "src/scanner.rl"
when 10 then
# line 48 "src/scanner.rl"
		begin
te = p+1
		end
# line 48 "src/scanner.rl"
when 11 then
# line 50 "src/scanner.rl"
		begin
te = p+1
 begin  words.clear; p = p - 1; 	begin
		stack[top] = cs
		top+= 1
		cs = 10
		_trigger_goto = true
		_goto_level = _again
		break
	end
  end
		end
# line 50 "src/scanner.rl"
when 12 then
# line 52 "src/scanner.rl"
		begin
te = p+1
		end
# line 52 "src/scanner.rl"
when 13 then
# line 50 "src/scanner.rl"
		begin
te = p
p = p - 1; begin  words.clear; p = p - 1; 	begin
		stack[top] = cs
		top+= 1
		cs = 10
		_trigger_goto = true
		_goto_level = _again
		break
	end
  end
		end
# line 50 "src/scanner.rl"
when 14 then
# line 52 "src/scanner.rl"
		begin
te = p
p = p - 1;		end
# line 52 "src/scanner.rl"
when 15 then
# line 50 "src/scanner.rl"
		begin
 begin p = ((te))-1; end
 begin  words.clear; p = p - 1; 	begin
		stack[top] = cs
		top+= 1
		cs = 10
		_trigger_goto = true
		_goto_level = _again
		break
	end
  end
		end
# line 50 "src/scanner.rl"
# line 439 "src/scanner.rb"
			end # action switch
		end
	end
	if _trigger_goto
		next
	end
	end
	if _goto_level <= _again
	_acts = _nginx_to_state_actions[cs]
	_nacts = _nginx_actions[_acts]
	_acts += 1
	while _nacts > 0
		_nacts -= 1
		_acts += 1
		case _nginx_actions[_acts - 1]
when 0 then
# line 1 "src/scanner.rl"
		begin
ts = nil;		end
# line 1 "src/scanner.rl"
# line 460 "src/scanner.rb"
		end # to state action switch
	end
	if _trigger_goto
		next
	end
	p += 1
	if p != pe
		_goto_level = _resume
		next
	end
	end
	if _goto_level <= _test_eof
	if p == eof
	if _nginx_eof_trans[cs] > 0
		_trans = _nginx_eof_trans[cs] - 1;
		_goto_level = _eof_trans
		next;
	end
end
	end
	if _goto_level <= _out
		break
	end
	end
	end
# line 70 "src/scanner.rl"
  # This is a little more forgiving than
  # using <tt>pop</tt> and validating balance
  contexts.first
end