parser
Class Parser

java.lang.Object
  |
  +--java_cup.runtime.lr_parser
        |
        +--parser.Parser

public class Parser

extends java_cup.runtime.lr_parser

CUP v0.10k generated parser.

Version:

Fri Jul 28 08:38:29 CEST 2000

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 parser.CUP$Parser$actions	action_obj Instance of action encapsulation class.

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, tos

Constructor Summary

Parser()
Default constructor.

Parser(java_cup.runtime.Scanner s)
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, java.util.Stack stack, int top) Invoke a user supplied parse action.
int	EOF_sym() EOF Symbol index.
int	error_sym() error Symbol index.
protected void	init_actions() Action encapsulation object initializer.
Expr	parseExpression(java.lang.String expression) public method to parse a single expression public Methode um einen einzelnen Ausdruck zu parsen
Program	parseFile(java.io.File sourcefile) public Methode um eine Datei zu parsen
short[][]	production_table() Access to production table.
short[][]	reduce_table() Access to reduce_goto table.
void	report_error(java.lang.String message, java.lang.Object info)
void	report_fatal_error(java.lang.String message, java.lang.Object info)
int	start_production() Indicates start production.
int	start_state() Indicates start state.
void	syntax_error(java_cup.runtime.Symbol cur_token)
void	unrecovered_syntax_error(java_cup.runtime.Symbol cur_token)

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, parse_lookahead, parse, read_lookahead, restart_lookahead, scan, setScanner, shift_under_error, try_parse_ahead, unpackFromStrings, 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 parser.CUP$Parser$actions action_obj

Instance of action encapsulation class.

Constructor Detail

Parser

public Parser()

Default constructor.

Parser

public Parser(java_cup.runtime.Scanner s)

Constructor which sets the default scanner.

Method Detail

production_table

public short[][] production_table()

Access to production table.

Overrides:

production_table in class java_cup.runtime.lr_parser

action_table

public short[][] action_table()

Access to parse-action table.

Overrides:

action_table in class java_cup.runtime.lr_parser

reduce_table

public short[][] reduce_table()

Access to reduce_goto table.

Overrides:

reduce_table in class java_cup.runtime.lr_parser

init_actions

protected void init_actions()

Action encapsulation object initializer.

Overrides:

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,
                                         java.util.Stack stack,
                                         int top)
                                  throws java.lang.Exception

Invoke a user supplied parse action.

Overrides:

do_action in class java_cup.runtime.lr_parser

start_state

public int start_state()

Indicates start state.

Overrides:

start_state in class java_cup.runtime.lr_parser

start_production

public int start_production()

Indicates start production.

Overrides:

start_production in class java_cup.runtime.lr_parser

EOF_sym

public int EOF_sym()

EOF Symbol index.

Overrides:

EOF_sym in class java_cup.runtime.lr_parser

error_sym

public int error_sym()

error Symbol index.

Overrides:

error_sym in class java_cup.runtime.lr_parser

report_fatal_error

public void report_fatal_error(java.lang.String message,
                               java.lang.Object info)
                        throws ParseException

Overrides:

report_fatal_error in class java_cup.runtime.lr_parser

report_error

public void report_error(java.lang.String message,
                         java.lang.Object info)

Overrides:

report_error in class java_cup.runtime.lr_parser

syntax_error

public void syntax_error(java_cup.runtime.Symbol cur_token)

Overrides:

syntax_error in class java_cup.runtime.lr_parser

unrecovered_syntax_error

public void unrecovered_syntax_error(java_cup.runtime.Symbol cur_token)
                              throws ParseException

Overrides:

unrecovered_syntax_error in class java_cup.runtime.lr_parser

parseFile

public Program parseFile(java.io.File sourcefile)
                  throws java.lang.Exception

public Methode um eine Datei zu parsen

Returns:

der abstrakte Syntaxbaum mit absynt.Program als Wurzel

Throws:

java.Exception - bei Fehler.

parseExpression

public Expr parseExpression(java.lang.String expression)
                     throws java.lang.Exception

public method to parse a single expression

public Methode um einen einzelnen Ausdruck zu parsen

Returns:

ein Ausdruck wie absynt.Expr* parser.ParseException falls ein Syntax-Fehler in der Datei vorliegt

Throws:

java.Exception - bei Fehler.