Module: NginxConfigParser::Scanner

Defined in:

lib/nginx_config_parser/scanner.rb

Defined Under Namespace

Classes: ConfigurationError

Class Method Summary

• .parse(data) ⇒ Object

Class Method Details

.parse(data) ⇒ Object

# 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