adams.parser.twitterfilter
Class Parser

java.lang.Object
  java_cup.runtime.lr_parser
      adams.parser.twitterfilter.Parser

public class Parser
extends java_cup.runtime.lr_parser

CUP v0.11a beta 20060608 generated parser.

Version:

Mon Jan 23 08:11:32 NZDT 2012

Field Summary

protected static short[][]	_action_table Parse-action table.
protected static short[][]	_production_table Production table.
protected static short[][]	_reduce_table reduce_goto table.
protected adams.parser.twitterfilter.CUP$Parser$actions	action_obj Instance of action encapsulation class.
protected Boolean	m_Result for storing the result of the expression.
protected HashMap	m_Symbols variable - value relation.

Fields inherited from class java_cup.runtime.lr_parser

_done_parsing, _error_sync_size, action_tab, cur_token, lookahead, lookahead_pos, production_tab, reduce_tab, stack, symbolFactory, tos

Constructor Summary

Parser()
Default constructor.

Parser(java_cup.runtime.Scanner s)
Constructor which sets the default scanner.

Parser(java_cup.runtime.Scanner s, java_cup.runtime.SymbolFactory sf)
Constructor which sets the default scanner.

Method Summary

short[][]	action_table() Access to parse-action table.
java_cup.runtime.Symbol	do_action(int act_num, java_cup.runtime.lr_parser parser, Stack stack, int top) Invoke a user supplied parse action.
int	EOF_sym() EOF Symbol index.
int	error_sym() error Symbol index.
protected String	get(Symbols symbol) Returns the current variable - value relation in use.
Boolean	getResult() Returns the result of the evaluation.
HashMap	getSymbols() Returns the current variable - value relation in use.
protected void	init_actions() Action encapsulation object initializer.
static void	main(String[] args) Runs the parser from commandline.
short[][]	production_table() Access to production table.
short[][]	reduce_table() Access to reduce_goto table.
void	setResult(Boolean value) Sets the result of the evaluation.
void	setSymbols(HashMap value) Sets the variable - value relation to use.
int	start_production() Indicates start production.
int	start_state() Indicates start state.

Methods inherited from class java_cup.runtime.lr_parser

advance_lookahead, cur_err_token, debug_message, debug_parse, debug_reduce, debug_shift, debug_stack, done_parsing, dump_stack, error_recovery, error_sync_size, find_recovery_config, get_action, get_reduce, getScanner, getSymbolFactory, parse_lookahead, parse, read_lookahead, report_error, report_fatal_error, restart_lookahead, scan, setScanner, shift_under_error, syntax_error, try_parse_ahead, unpackFromStrings, unrecovered_syntax_error, user_init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_production_table

protected static final short[][] _production_table

Production table.

_action_table

protected static final short[][] _action_table

Parse-action table.

_reduce_table

protected static final short[][] _reduce_table

reduce_goto table.

action_obj

protected adams.parser.twitterfilter.CUP$Parser$actions action_obj

Instance of action encapsulation class.

m_Symbols

protected HashMap m_Symbols

variable - value relation.

m_Result

protected Boolean m_Result

for storing the result of the expression.

Constructor Detail

Parser

public Parser()

Default constructor.

Parser

public Parser(java_cup.runtime.Scanner s)

Constructor which sets the default scanner.

Parser

public Parser(java_cup.runtime.Scanner s,
              java_cup.runtime.SymbolFactory sf)

Constructor which sets the default scanner.

Method Detail

production_table

public short[][] production_table()

Access to production table.

Specified by:

production_table in class java_cup.runtime.lr_parser

action_table

public short[][] action_table()

Access to parse-action table.

Specified by:

action_table in class java_cup.runtime.lr_parser

reduce_table

public short[][] reduce_table()

Access to reduce_goto table.

Specified by:

reduce_table in class java_cup.runtime.lr_parser

init_actions

protected void init_actions()

Action encapsulation object initializer.

Specified by:

init_actions in class java_cup.runtime.lr_parser

do_action

public java_cup.runtime.Symbol do_action(int act_num,
                                         java_cup.runtime.lr_parser parser,
                                         Stack stack,
                                         int top)
                                  throws Exception

Invoke a user supplied parse action.

Specified by:

do_action in class java_cup.runtime.lr_parser

Throws:

Exception

start_state

public int start_state()

Indicates start state.

Specified by:

start_state in class java_cup.runtime.lr_parser

start_production

public int start_production()

Indicates start production.

Specified by:

start_production in class java_cup.runtime.lr_parser

EOF_sym

public int EOF_sym()

EOF Symbol index.

Specified by:

EOF_sym in class java_cup.runtime.lr_parser

error_sym

public int error_sym()

error Symbol index.

Specified by:

error_sym in class java_cup.runtime.lr_parser

setSymbols

public void setSymbols(HashMap value)

Sets the variable - value relation to use.

Parameters:

value - the variable-value relation

getSymbols

public HashMap getSymbols()

Returns the current variable - value relation in use.

Returns:

the variable-value relation

get

protected String get(Symbols symbol)

Returns the current variable - value relation in use.

Returns:

the variable-value relation

setResult

public void setResult(Boolean value)

Sets the result of the evaluation.

Parameters:

value - the result

getResult

public Boolean getResult()

Returns the result of the evaluation.

Returns:

the result

main

public static void main(String[] args)
                 throws Exception

Runs the parser from commandline. Either reads lines from System.in or from a provided file (line by line). With -symbols as first parameter one can provide predefined variable values. E.g.: -symbols "Y=10;X=3" "X+Y"

Parameters:

args - the commandline arguments

Throws:

Exception - if something goes wrong