Class: Eggshell::ExpressionEvaluator::Lexer

Inherits:
Object
  • Object
show all
Defined in:
lib/eggshell/expression-evaluator/lexer.rb

Instance Method Summary collapse

Constructor Details

#initialize(parser) ⇒ Lexer

Returns a new instance of Lexer.



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# File 'lib/eggshell/expression-evaluator/lexer.rb', line 11

def initialize(parser)
	@parser = parser
	
# line 15 "lib/eggshell/expression-evaluator/lexer.rb"
class << self
attr_accessor :_eggshell_actions
private :_eggshell_actions, :_eggshell_actions=
end
self._eggshell_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, 1, 16, 1, 17, 1, 18, 1, 
19
]

class << self
attr_accessor :_eggshell_key_offsets
private :_eggshell_key_offsets, :_eggshell_key_offsets=
end
self._eggshell_key_offsets = [
0, 2, 39, 40, 41, 48, 49, 51, 
54, 56, 57, 59, 61, 62, 64, 74
]

class << self
attr_accessor :_eggshell_trans_keys
private :_eggshell_trans_keys, :_eggshell_trans_keys=
end
self._eggshell_trans_keys = [
48, 57, 13, 32, 33, 34, 36, 38, 
39, 43, 44, 45, 46, 58, 59, 60, 
61, 62, 63, 64, 91, 92, 93, 94, 
124, 9, 10, 40, 41, 42, 47, 48, 
57, 65, 95, 97, 122, 123, 125, 61, 
126, 95, 48, 57, 65, 90, 97, 122, 
38, 48, 57, 46, 48, 57, 48, 57, 
58, 60, 61, 61, 126, 61, 61, 62, 
34, 91, 93, 110, 114, 116, 123, 125, 
39, 41, 124, 0
]

class << self
attr_accessor :_eggshell_single_lengths
private :_eggshell_single_lengths, :_eggshell_single_lengths=
end
self._eggshell_single_lengths = [
0, 23, 1, 1, 1, 1, 0, 1, 
0, 1, 0, 2, 1, 0, 8, 1
]

class << self
attr_accessor :_eggshell_range_lengths
private :_eggshell_range_lengths, :_eggshell_range_lengths=
end
self._eggshell_range_lengths = [
1, 7, 0, 0, 3, 0, 1, 1, 
1, 0, 1, 0, 0, 1, 1, 0
]

class << self
attr_accessor :_eggshell_index_offsets
private :_eggshell_index_offsets, :_eggshell_index_offsets=
end
self._eggshell_index_offsets = [
0, 2, 33, 35, 37, 42, 44, 46, 
49, 51, 53, 55, 58, 60, 62, 72
]

class << self
attr_accessor :_eggshell_indicies
private :_eggshell_indicies, :_eggshell_indicies=
end
self._eggshell_indicies = [
1, 0, 3, 3, 4, 5, 6, 7, 
5, 10, 11, 10, 11, 13, 11, 14, 
15, 16, 9, 17, 18, 19, 18, 9, 
21, 3, 8, 9, 12, 6, 6, 20, 
2, 23, 22, 9, 24, 6, 6, 6, 
6, 25, 9, 22, 12, 24, 27, 12, 
26, 1, 28, 17, 29, 9, 24, 30, 
9, 24, 9, 24, 9, 24, 31, 31, 
31, 31, 31, 31, 31, 31, 31, 22, 
9, 22, 0
]

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

class << self
attr_accessor :_eggshell_trans_actions
private :_eggshell_trans_actions, :_eggshell_trans_actions=
end
self._eggshell_trans_actions = [
39, 0, 25, 23, 0, 15, 0, 0, 
13, 7, 0, 19, 5, 0, 0, 0, 
0, 17, 9, 0, 11, 0, 37, 0, 
33, 31, 27, 0, 29, 35, 0, 21
]

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

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

class << self
attr_accessor :_eggshell_eof_trans
private :_eggshell_eof_trans, :_eggshell_eof_trans=
end
self._eggshell_eof_trans = [
1, 0, 23, 25, 26, 23, 25, 27, 
29, 30, 25, 25, 25, 25, 23, 23
]

class << self
attr_accessor :eggshell_start
end
self.eggshell_start = 1;
class << self
attr_accessor :eggshell_first_final
end
self.eggshell_first_final = 1;
class << self
attr_accessor :eggshell_error
end
self.eggshell_error = -1;

class << self
attr_accessor :eggshell_en_main
end
self.eggshell_en_main = 1;


# line 80 "lib/eggshell/expression-evaluator/lexer.ragel"
	# %
end

Instance Method Details

#process(source) ⇒ Object 



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# File 'lib/eggshell/expression-evaluator/lexer.rb', line 170

def process(source)
	data = source.is_a?(String) ? source.unpack("c*") : source
	eof = data.length
	
# line 175 "lib/eggshell/expression-evaluator/lexer.rb"
begin
p ||= 0
pe ||= data.length
cs = eggshell_start
ts = nil
te = nil
act = 0
end

# line 87 "lib/eggshell/expression-evaluator/lexer.ragel"
	
# line 187 "lib/eggshell/expression-evaluator/lexer.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 = _eggshell_from_state_actions[cs]
_nacts = _eggshell_actions[_acts]
_acts += 1
while _nacts > 0
	_nacts -= 1
	_acts += 1
	case _eggshell_actions[_acts - 1]
		when 1 then
# line 1 "NONE"
	begin
ts = p
	end
# line 217 "lib/eggshell/expression-evaluator/lexer.rb"
	end # from state action switch
end
if _trigger_goto
	next
end
_keys = _eggshell_key_offsets[cs]
_trans = _eggshell_index_offsets[cs]
_klen = _eggshell_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].ord < _eggshell_trans_keys[_mid]
           _upper = _mid - 1
        elsif data[p].ord > _eggshell_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 = _eggshell_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].ord < _eggshell_trans_keys[_mid]
          _upper = _mid - 2
        elsif data[p].ord > _eggshell_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 = _eggshell_indicies[_trans]
end
if _goto_level <= _eof_trans
cs = _eggshell_trans_targs[_trans]
if _eggshell_trans_actions[_trans] != 0
	_acts = _eggshell_trans_actions[_trans]
	_nacts = _eggshell_actions[_acts]
	_acts += 1
	while _nacts > 0
		_nacts -= 1
		_acts += 1
		case _eggshell_actions[_acts - 1]
when 2 then
# line 1 "NONE"
	begin
te = p+1
	end
when 3 then
# line 31 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:logical_op, data, ts, te)
	 end
	end
when 4 then
# line 35 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:index_group, data, ts, te);
	 end
	end
when 5 then
# line 39 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:brace_group, data, ts, te);
	 end
	end
when 6 then
# line 43 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:paren_group, data, ts, te);
	 end
	end
when 7 then
# line 47 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:str_delim, data, ts, te);
	 end
	end
when 8 then
# line 51 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:modifier, data, ts, te);
	 end
	end
when 9 then
# line 55 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:separator, data, ts, te);
	 end
	end
when 10 then
# line 59 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:escape, data, ts, te);
	 end
	end
when 11 then
# line 63 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:space, data, ts, te)
	 end
	end
when 12 then
# line 67 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p+1
begin 
		@parser.emit(:string, data, ts, te)
	 end
	end
when 13 then
# line 19 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p
p = p - 1; begin  
		@parser.emit(:number_literal, data, ts, te) 
	 end
	end
when 14 then
# line 23 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p
p = p - 1; begin  
		@parser.emit(:number_literal, data, ts, te) 
	 end
	end
when 15 then
# line 27 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p
p = p - 1; begin  
		@parser.emit(:identifier, data, ts, te) 
	 end
	end
when 16 then
# line 31 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p
p = p - 1; begin 
		@parser.emit(:logical_op, data, ts, te)
	 end
	end
when 17 then
# line 51 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p
p = p - 1; begin 
		@parser.emit(:modifier, data, ts, te);
	 end
	end
when 18 then
# line 67 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
te = p
p = p - 1; begin 
		@parser.emit(:string, data, ts, te)
	 end
	end
when 19 then
# line 19 "lib/eggshell/expression-evaluator/lexer.ragel"
	begin
begin p = ((te))-1; end
begin  
		@parser.emit(:number_literal, data, ts, te) 
	 end
	end
# line 425 "lib/eggshell/expression-evaluator/lexer.rb"
		end # action switch
	end
end
if _trigger_goto
	next
end
end
if _goto_level <= _again
_acts = _eggshell_to_state_actions[cs]
_nacts = _eggshell_actions[_acts]
_acts += 1
while _nacts > 0
	_nacts -= 1
	_acts += 1
	case _eggshell_actions[_acts - 1]
when 0 then
# line 1 "NONE"
	begin
ts = nil;		end
# line 445 "lib/eggshell/expression-evaluator/lexer.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 _eggshell_eof_trans[cs] > 0
	_trans = _eggshell_eof_trans[cs] - 1;
	_goto_level = _eof_trans
	next;
end
end
end
if _goto_level <= _out
	break
end
end
end

# line 88 "lib/eggshell/expression-evaluator/lexer.ragel"
	# %
end