weka.core.expressionlanguage.parser

Class Parser

java.lang.Object

java_cup.runtime.lr_parser

weka.core.expressionlanguage.parser.Parser

public class Parser
extends java_cup.runtime.lr_parser

CUP v0.11b 20141202 (SVN rev 60) generated parser.

Field Summary

Fields inherited from class java_cup.runtime.lr_parser

symbolFactory

Constructor Summary

Constructors

Constructor and Description
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

Modifier and Type	Method and Description
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.
Node	getRoot() Returns the root node of the program
Class	getSymbolContainer()
static Node	parse(String expr, VariableDeclarations variables, MacroDeclarations macros) Tries to parse and compile a program from the textual representation in expr while exposing the variables and marcos
short[][]	production_table() Access to production table.
short[][]	reduce_table() Access to reduce_goto table.
void	setMacros(MacroDeclarations macros) Sets the macro declarations for the program
void	setVariables(VariableDeclarations variables) Sets the variable declarations for the program
int	start_production() Indicates start production.
int	start_state() Indicates start state.
void	unrecovered_syntax_error(java_cup.runtime.Symbol token)

Methods inherited from class java_cup.runtime.lr_parser

debug_message, debug_parse, debug_reduce, debug_shift, debug_stack, done_parsing, dump_stack, expected_token_ids, getScanner, getSymbolFactory, parse, report_error, report_fatal_error, scan, setScanner, symbl_name_from_id, syntax_error, user_init

Methods inherited from class java.lang.Object

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

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

getSymbolContainer

public final Class getSymbolContainer()

Overrides:

getSymbolContainer in class java_cup.runtime.lr_parser

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

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

setVariables

public void setVariables(VariableDeclarations variables)

Sets the variable declarations for the program

Parameters:

variables - the variables that should be exposed to the program

setMacros

public void setMacros(MacroDeclarations macros)

Sets the macro declarations for the program

Parameters:

macros - the macros that should be exposed to the program

getRoot

public Node getRoot()

Returns the root node of the program

Returns:

the root node

parse

public static Node parse(String expr,
                         VariableDeclarations variables,
                         MacroDeclarations macros)
                  throws Exception

Tries to parse and compile a program from the textual representation in expr while exposing the variables and marcos

Parameters:

expr - the expression to be compiled in textual form

variables - the variables exposed to the program

macros - the macros exposed to the program

Returns:

the root node of the compiled program

Throws:

Exception - if an error occurs during compilation

unrecovered_syntax_error

public void unrecovered_syntax_error(java_cup.runtime.Symbol token)
                              throws SyntaxException

Overrides:

unrecovered_syntax_error in class java_cup.runtime.lr_parser

Throws:

SyntaxException