Class: Antlr4ruby::Lexer Abstract

Inherits:
Recognizer show all
Defined in:
lib/antlr4ruby/lexer.rb

Overview

This class is abstract.

Direct Known Subclasses

LexerInterpreter

Constant Summary collapse

DEFAULT_MODE = 
0
MORE = 
-2
SKIP = 
-3
DEFAULT_TOKEN_CHANNEL = 
Token::DEFAULT_CHANNEL
HIDDEN = 
Token::HIDDEN_CHANNEL
MIN_CHAR_VALUE = 
0x0000
MAX_CHAR_VALUE = 
0x10ffff

Constants inherited from Recognizer

Recognizer::EOF

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Recognizer

#action, #add_error_listener, #get_atn, #get_error_header, #get_error_listener_dispatch, #get_error_listeners, #get_grammar_file_name, #get_interpreter, #get_parse_info, #get_rule_index_map, #get_rule_names, #get_serialized_atn, #get_state, #get_token_names, #get_token_type, #get_token_type_map, #get_vocabulary, #precpred, #remove_error_listener, #remove_error_listeners, #sempred, #set_interpreter, #set_state

Constructor Details

#initialize(input) ⇒ Lexer

Returns a new instance of Lexer.



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# File 'lib/antlr4ruby/lexer.rb', line 21

def initialize(input)
  super()
  @token_start_char_index = -1
  @mode = Lexer.DEFAULT_MODE
  @mode_stack = IntegerStack.new
  if input
    @input = input
    @token_factory_source_pair = Pair.new(self, input)
  end
end

Instance Attribute Details

#channel ⇒ Object

Returns the value of attribute channel.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def channel
  @channel
end

#hit_eof ⇒ Object

Returns the value of attribute hit_eof.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def hit_eof
  @hit_eof
end

#input ⇒ Object

Returns the value of attribute input.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def input
  @input
end

#mode ⇒ Object

Returns the value of attribute mode.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def mode
  @mode
end

#mode_stack ⇒ Object

Returns the value of attribute mode_stack.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def mode_stack
  @mode_stack
end

#text ⇒ Object

Returns the value of attribute text.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def text
  @text
end

#token ⇒ Object

Returns the value of attribute token.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def token
  @token
end

#token_start_char_index ⇒ Object

Returns the value of attribute token_start_char_index.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def token_start_char_index
  @token_start_char_index
end

#token_start_line ⇒ Object

Returns the value of attribute token_start_line.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def token_start_line
  @token_start_line
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/antlr4ruby/lexer.rb', line 17

def type
  @type
end

Instance Method Details

#emit(token) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 63

def emit(token)
  # todo

end

#emit_eof ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 67

def emit_eof
  # todo

end

#get_all_tokens ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 123

def get_all_tokens
  # todo

end

#get_channel ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 111

def get_channel
  @channel
end

#get_channel_names ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 115

def get_channel_names
  []
end

#get_char_error_display(c) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 139

def get_char_error_display(c)
  # todo

end

#get_char_index ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 79

def get_char_index
  # todo

end

#get_char_position_in_line ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 172

def get_char_position_in_line
  # todo

end

#get_error_display(s) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 135

def get_error_display(s)
  # todo

end

#get_input_stream ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 164

def get_input_stream
  # todo

end

#get_line ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 168

def get_line
  # todo

end

#get_mode_names ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 119

def get_mode_names
  []
end

#get_source_name ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 160

def get_source_name
  # todo

end

#get_text ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 83

def get_text
  # todo

end

#get_token ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 91

def get_token
  @token
end

#get_token_factory ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 152

def get_token_factory
  # todo

end

#get_type ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 103

def get_type
  @type
end

#more ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 45

def more
  @type = more
end

#next_token ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 144

def next_token
  # todo

end

#notify_listeners(e) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 131

def notify_listeners(e)
  # todo

end

#pop_mode ⇒ Object

不能定义 mode 函数，会覆盖掉 attr_accessor def mode(m)

@mode = m

end



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# File 'lib/antlr4ruby/lexer.rb', line 54

def pop_mode
  # todo

end

#push_mode(m) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 58

def push_mode(m)
  p "push_mode #{m}" if LexerATNSimulator.debug
  # todo

end

#recover(e) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 127

def recover(e)
  # todo

end

#reset ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 37

def reset
  # todo

end

#set_channel(channel) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 107

def set_channel(channel)
  @channel = channel
end

#set_char_position_in_line(position) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 75

def set_char_position_in_line(position)
  # todo

end

#set_input_stream(input) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 156

def set_input_stream(input)
  # todo

end

#set_line(line) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 71

def set_line(line)
  # todo

end

#set_text(text) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 87

def set_text(text)
  @text = text
end

#set_token(token) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 95

def set_token(token)
  @token = token
end

#set_token_factory(factory) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 148

def set_token_factory(factory)
  # todo

end

#set_type(token_type) ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 99

def set_type(token_type)
  @type = token_type
end

#skip ⇒ Object 



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# File 'lib/antlr4ruby/lexer.rb', line 41

def skip
  @type = SKIP
end