Class: Solver::Lexer

Inherits:
ANTLR3::Lexer
  • Object
show all
Includes:
TokenData
Defined in:
lib/plympton/SolverLexer.rb

Defined Under Namespace

Classes: DFA3

Constant Summary collapse

RULE_NAMES = 
[ "PLUS", "MINUS", "MULT", "DIV", "MOD", "EXP", "LPAREN", 
"RPAREN", "T__19", "INT", "FLOAT", "MODVAR", "UNMODVAR", 
"WHITESPACE", "DIGIT", "MODIFIER" ].freeze
RULE_METHODS = 
[ :plus!, :minus!, :mult!, :div!, :mod!, :exp!, :lparen!, 
:rparen!, :t__19!, :int!, :float!, :modvar!, :unmodvar!, 
:whitespace!, :digit!, :modifier! ].freeze

Instance Method Summary collapse

Constructor Details

#initialize(input = nil, options = {}) ⇒ Lexer

Returns a new instance of Lexer.



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# File 'lib/plympton/SolverLexer.rb', line 96

def initialize( input=nil, options = {} )
  super( input, options )

end

Instance Method Details

#digit! ⇒ Object

lexer rule digit! (DIGIT) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 532

def digit!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 15 )

  
  # - - - - main rule block - - - -
  # at line 117:18: '0' .. '9'
  match_range( 0x30, 0x39 )

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 15 )

end

#div! ⇒ Object

lexer rule div! (DIV) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 195

def div!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 4 )

  type = DIV
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 24:7: '/'
  match( 0x2f )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 4 )

end

#exp! ⇒ Object

lexer rule exp! (EXP) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 243

def exp!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 6 )

  type = EXP
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 26:7: '^'
  match( 0x5e )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 6 )

end

#float! ⇒ Object

lexer rule float! (FLOAT) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 387

def float!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 11 )

  type = FLOAT
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 108:12: INT '.' INT
  int!
  match( 0x2e )
  int!

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 11 )

end

#int! ⇒ Object

lexer rule int! (INT) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 339

def int!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 10 )

  type = INT
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 107:11: ( DIGIT )+
  # at file 107:11: ( DIGIT )+
  match_count_1 = 0
  while true
    alt_1 = 2
    look_1_0 = @input.peek( 1 )

    if ( look_1_0.between?( 0x30, 0x39 ) )
      alt_1 = 1

    end
    case alt_1
    when 1
      # at line 107:12: DIGIT
      digit!

    else
      match_count_1 > 0 and break
      eee = EarlyExit(1)


      raise eee
    end
    match_count_1 += 1
  end


  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 10 )

end

#lparen! ⇒ Object

lexer rule lparen! (LPAREN) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 267

def lparen!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 7 )

  type = LPAREN
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 27:10: '('
  match( 0x28 )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 7 )

end

#minus! ⇒ Object

lexer rule minus! (MINUS) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 147

def minus!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 2 )

  type = MINUS
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 22:9: '-'
  match( 0x2d )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 2 )

end

#mod! ⇒ Object

lexer rule mod! (MOD) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 219

def mod!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 5 )

  type = MOD
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 25:7: '%'
  match( 0x25 )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 5 )

end

#modifier! ⇒ Object

lexer rule modifier! (MODIFIER) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 549

def modifier!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 16 )

  
  # - - - - main rule block - - - -
  # at line 
  if @input.peek(1) == 0x61 || @input.peek(1) == 0x73
    @input.consume
  else
    mse = MismatchedSet( nil )
    recover mse
    raise mse
  end



ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 16 )

end

#modvar! ⇒ Object

lexer rule modvar! (MODVAR) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 413

def modvar!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 12 )

  type = MODVAR
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 109:13: 'A' .. 'G' ( MODIFIER )
  match_range( 0x41, 0x47 )
  # at line 109:21: ( MODIFIER )
  # at line 109:22: MODIFIER
  modifier!


  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 12 )

end

#mult! ⇒ Object

lexer rule mult! (MULT) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 171

def mult!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 3 )

  type = MULT
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 23:8: '*'
  match( 0x2a )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 3 )

end

#plus! ⇒ Object

                      • lexer rules - - - - - - - - - - - -

lexer rule plus! (PLUS) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 123

def plus!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 1 )

  type = PLUS
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 21:8: '+'
  match( 0x2b )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 1 )

end

#recover(error = $!) ⇒ Object

Recovery function handling errors



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# File 'lib/plympton/SolverLexer.rb', line 106

def recover( error = $! )
	puts "Lexer Recovering: #{error}"
	exit(1)
end

#report_error(error = $!) ⇒ Object

Reporting function handling errors



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# File 'lib/plympton/SolverLexer.rb', line 112

def report_error( error = $! )
	puts "Lexer Reporting: #{error}"
	exit(1)
end

#rparen! ⇒ Object

lexer rule rparen! (RPAREN) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 291

def rparen!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 8 )

  type = RPAREN
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 28:10: ')'
  match( 0x29 )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 8 )

end

#t__19! ⇒ Object

lexer rule t__19! (T__19) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 315

def t__19!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 9 )

  type = T__19
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 29:9: 'ln'
  match( "ln" )

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 9 )

end

#token! ⇒ Object

main rule used to study the input at the current position, and choose the proper lexer rule to call in order to fetch the next token

usually, you don’t make direct calls to this method, but instead use the next_token method, which will build and emit the actual next token



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# File 'lib/plympton/SolverLexer.rb', line 579

def token!
  # at line 1:8: ( PLUS | MINUS | MULT | DIV | MOD | EXP | LPAREN | RPAREN | T__19 | INT | FLOAT | MODVAR | UNMODVAR | WHITESPACE )
  alt_3 = 14
  alt_3 = @dfa3.predict( @input )
  case alt_3
  when 1
    # at line 1:10: PLUS
    plus!

  when 2
    # at line 1:15: MINUS
    minus!

  when 3
    # at line 1:21: MULT
    mult!

  when 4
    # at line 1:26: DIV
    div!

  when 5
    # at line 1:30: MOD
    mod!

  when 6
    # at line 1:34: EXP
    exp!

  when 7
    # at line 1:38: LPAREN
    lparen!

  when 8
    # at line 1:45: RPAREN
    rparen!

  when 9
    # at line 1:52: T__19
    t__19!

  when 10
    # at line 1:58: INT
    int!

  when 11
    # at line 1:62: FLOAT
    float!

  when 12
    # at line 1:68: MODVAR
    modvar!

  when 13
    # at line 1:75: UNMODVAR
    unmodvar!

  when 14
    # at line 1:84: WHITESPACE
    whitespace!

  end
end

#unmodvar! ⇒ Object

lexer rule unmodvar! (UNMODVAR) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 441

def unmodvar!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 13 )

  type = UNMODVAR
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 110:14: ( 'R' | 'U' | 'V' )
  if @input.peek(1) == 0x52 || @input.peek( 1 ).between?( 0x55, 0x56 )
    @input.consume
  else
    mse = MismatchedSet( nil )
    recover mse
    raise mse
  end



  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 13 )

end

#whitespace! ⇒ Object

lexer rule whitespace! (WHITESPACE) (in solver.g)



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# File 'lib/plympton/SolverLexer.rb', line 473

def whitespace!
  # -> uncomment the next line to manually enable rule tracing
  # trace_in( __method__, 14 )

  type = WHITESPACE
  channel = ANTLR3::DEFAULT_CHANNEL

  
  # - - - - main rule block - - - -
  # at line 111:14: ( '\\t' | ' ' | '\\r' | '\\n' | '\\u000C' )+
  # at file 111:14: ( '\\t' | ' ' | '\\r' | '\\n' | '\\u000C' )+
  match_count_2 = 0
  while true
    alt_2 = 2
    look_2_0 = @input.peek( 1 )

    if ( look_2_0.between?( 0x9, 0xa ) || look_2_0.between?( 0xc, 0xd ) || look_2_0 == 0x20 )
      alt_2 = 1

    end
    case alt_2
    when 1
      # at line 
      if @input.peek( 1 ).between?( 0x9, 0xa ) || @input.peek( 1 ).between?( 0xc, 0xd ) || @input.peek(1) == 0x20
        @input.consume
      else
        mse = MismatchedSet( nil )
        recover mse
        raise mse
      end



    else
      match_count_2 > 0 and break
      eee = EarlyExit(2)


      raise eee
    end
    match_count_2 += 1
  end

  # --> action
   channel = HIDDEN; 
  # <-- action

  
  @state.type = type
  @state.channel = channel

ensure
  # -> uncomment the next line to manually enable rule tracing
  # trace_out( __method__, 14 )

end