it.unimo.dbgroup.momis.odli3
Class Parser

java.lang.Object
  it.unimo.dbgroup.momis.odli3.Parser

All Implemented Interfaces:

java.io.Serializable

public class Parser

extends java.lang.Object

implements java.io.Serializable

See Also:

Serialized Form

Field Summary

private Error	_error Error support object.
private TypeContainer	_typeContainer stream to read from the ODL description.
static short	ALL
static short	AMPER
static short	AND
static short	ANY
static short	ARRAY
static short	ATTRIBUTE
static short	BAG
static short	BOOLEAN
static short	BOTTOM
static short	BT
static short	CANDIDATE_KEY
static short	CASE
static short	CHAR
static short	CharacterLiteral
static short	COLON
static short	COMMA
static short	CONST
static short	CONTEXT
static short	DATE
static short	DEFAULT
static short	DOT
static short	DOUBLE
static short	DOUBLE_COLON
static short	DOUBLE_LEFT
static short	DOUBLE_RIGHT
static short	ENUM
static short	EQUAL
private java.lang.String	err Stringa con il testo dell'errore (vuota quando non c'e' errore)
static short	EXCEPTION
static short	EXISTS
static short	EXTENT
static short	EXTRULE
static short	FALSE
static short	FILE
static short	FLOAT
static short	FloatingPtLiteral
static short	FOR
static short	FORALL
static short	FOREIGN_KEY
static short	GREATEQUAL
static short	HAT
static short	Identifier
static short	IN
static short	INFINITE
static short	INOUT
static short	INT
static short	INTEGER
static short	IntegerLiteral
static short	INTERFACE
static short	INVERSE
static short	KEY
static short	KEYS
static short	LEFT
static short	LEPAR
static short	LESSEQUAL
private long	lineNo Line parsed.
static short	LIST
static short	LONG
static short	LPAR
static short	LRPAR
static short	MAPPING
static short	MINUS
static short	MODULE
static short	NFRELATIONAL
static short	NT
static short	OBJECT
static short	OCTET
private Schema	odli3Schema The parser fills ODL data structure starting from this Schema instace.
static short	OF
static short	ON
static short	ONEWAY
static short	ORDER_BY
static short	OUT
static short	PERCENT
static short	PERSISTENT
static short	PLUS
static short	QUESTION
static short	RAISES
static short	RANGE
static short	READONLY
static short	REFERENCES
static short	RELATIONAL
static short	RELATIONSHIP
static short	REPAR
static short	RIGHT
static short	RPAR
static short	RRPAR
static short	RT
static short	RULE
static short	SEMI
static short	SEMISTRUCTURED
static short	SEQUENCE
static short	SET
static short	SHORT
static short	SLASH
static short	SOURCE
private java.io.StreamTokenizer	st stream to read from the ODL description.
(package private) int	stateptr
(package private) int[]	statestk
static short	String
static short	STRING
static short	StringLiteral
static short	STRUCT
static short	SWITCH
static short	SYN
static short	THEN
static short	TILDE
static short	TIMES
static short	TIMESTAMP
static short	TRANSIENT
static short	TRUE
static short	TYPEDEF
static short	UNION
static short	UNSIGNED
(package private) int	valptr
(package private) Parserval[]	valstk
static short	VERT
static short	VIEW
static short	VOID
(package private) int	yychar
(package private) static short[]	yycheck
(package private) boolean	yydebug
(package private) static short[]	yydefred
(package private) static short[]	yydgoto
static short	YYERRCODE
(package private) int	yyerrflag
(package private) static short	YYFINAL
(package private) static short[]	yygindex
(package private) static short[]	yylen
(package private) static short[]	yylhs
(package private) Parserval	yylval
(package private) static short	YYMAXTOKEN
(package private) static java.lang.String[]	yyname
(package private) int	yynerrs
(package private) static short[]	yyrindex
(package private) static java.lang.String[]	yyrule
(package private) static short[]	yysindex
(package private) static int	YYSTACKSIZE
(package private) static short[]	yytable
(package private) static int	YYTABLESIZE
(package private) java.lang.String	yytext
(package private) Parserval	yyval

Constructor Summary

Parser()
Constructor: Creates a parser.

Parser(Schema s)
Constructor: Creates a parser ready do parse into the given schema.

Method Summary

(package private) void	debug(java.lang.String msg)
(package private) void	dump_stacks(int count)
private void	flushTmpTypeContainerTo(TypeContainer t) The temporary type container is usefull to collect all type definitios during parsing is flushed into a "stable" TypeContainer
private Interface	getInterface(java.util.Vector list) Search for an interface in a source.
Schema	getSchema() Restituisce la struttura entry point dal parser.
private TypeContainer	getTmpTypeContainer() A temporary type container is usefull to collect all type definitios during parsing.
(package private) boolean	init_stacks()
static void	main(java.lang.String[] args) This method reads an ODLI3 description from the file with the name passed in the first argument.
private void	myDebug(java.lang.String s) Routine per la stampa delle informazioni di debug
boolean	parse(java.io.StreamTokenizer st) Parse a ODL schema contained in a stream.
boolean	parse(java.lang.String sodl) Parse an ODLI3 description from a string.
boolean	parseFile(java.lang.String fileName) Parse a ODL schema contained in a file.
Schema	parseNewSchema(java.lang.String sodl) Parse an ODLI3 description from a string.
void	setErrorOutStream(java.io.PrintStream errorOutStream) Changes the output stream where write error messages.
(package private) void	state_drop(int cnt)
(package private) int	state_peek(int relative)
(package private) int	state_pop()
(package private) void	state_push(int state)
private static void	uso(java.io.PrintStream out) Prints Instructions about how to use this class from command line.
(package private) void	val_drop(int cnt)
(package private) void	val_dump()
(package private) void	val_init()
(package private) Parserval	val_peek(int relative)
(package private) Parserval	val_pop()
(package private) void	val_push(Parserval val)
private void	yyerror(java.lang.String s) Routine di gestione errori statndard del parser
private int	yylex() Routine di estrazione di un token da StreamTokenizer, l'input avviene da standard input
(package private) void	yylexdebug(int state, int ch)
(package private) int	yyparse()
private void	yywarning(java.lang.String s) Routine di gestione degli avvertimenti statndard

Methods inherited from class java.lang.Object

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

Field Detail

yydebug

boolean yydebug

yynerrs

int yynerrs

yyerrflag

int yyerrflag

yychar

int yychar

YYSTACKSIZE

static final int YYSTACKSIZE

See Also:

Constant Field Values

statestk

int[] statestk

stateptr

int stateptr

yytext

java.lang.String yytext

yyval

Parserval yyval

yylval

Parserval yylval

valstk

Parserval[] valstk

valptr

int valptr

Identifier

public static final short Identifier

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Constant Field Values

String

public static final short String

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Constant Field Values

IntegerLiteral

public static final short IntegerLiteral

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StringLiteral

public static final short StringLiteral

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CharacterLiteral

public static final short CharacterLiteral

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Constant Field Values

FloatingPtLiteral

public static final short FloatingPtLiteral

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Constant Field Values

AMPER

public static final short AMPER

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COLON

public static final short COLON

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COMMA

public static final short COMMA

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DOT

public static final short DOT

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Constant Field Values

DOUBLE_COLON

public static final short DOUBLE_COLON

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Constant Field Values

DOUBLE_LEFT

public static final short DOUBLE_LEFT

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Constant Field Values

DOUBLE_RIGHT

public static final short DOUBLE_RIGHT

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EQUAL

public static final short EQUAL

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GREATEQUAL

public static final short GREATEQUAL

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HAT

public static final short HAT

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LEFT

public static final short LEFT

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Constant Field Values

LEPAR

public static final short LEPAR

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Constant Field Values

LESSEQUAL

public static final short LESSEQUAL

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LPAR

public static final short LPAR

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LRPAR

public static final short LRPAR

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Constant Field Values

MINUS

public static final short MINUS

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Constant Field Values

PERCENT

public static final short PERCENT

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Constant Field Values

PLUS

public static final short PLUS

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Constant Field Values

QUESTION

public static final short QUESTION

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REPAR

public static final short REPAR

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RIGHT

public static final short RIGHT

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RPAR

public static final short RPAR

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RRPAR

public static final short RRPAR

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SEMI

public static final short SEMI

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SLASH

public static final short SLASH

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TILDE

public static final short TILDE

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TIMES

public static final short TIMES

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VERT

public static final short VERT

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ALL

public static final short ALL

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AND

public static final short AND

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ANY

public static final short ANY

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ARRAY

public static final short ARRAY

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ATTRIBUTE

public static final short ATTRIBUTE

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BAG

public static final short BAG

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BOOLEAN

public static final short BOOLEAN

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BOTTOM

public static final short BOTTOM

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BT

public static final short BT

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CANDIDATE_KEY

public static final short CANDIDATE_KEY

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CASE

public static final short CASE

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CHAR

public static final short CHAR

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CONST

public static final short CONST

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CONTEXT

public static final short CONTEXT

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DEFAULT

public static final short DEFAULT

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DOUBLE

public static final short DOUBLE

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ENUM

public static final short ENUM

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EXCEPTION

public static final short EXCEPTION

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EXISTS

public static final short EXISTS

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EXTENT

public static final short EXTENT

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EXTRULE

public static final short EXTRULE

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FALSE

public static final short FALSE

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FILE

public static final short FILE

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FLOAT

public static final short FLOAT

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FOR

public static final short FOR

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FORALL

public static final short FORALL

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FOREIGN_KEY

public static final short FOREIGN_KEY

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IN

public static final short IN

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INFINITE

public static final short INFINITE

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INOUT

public static final short INOUT

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INT

public static final short INT

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INTEGER

public static final short INTEGER

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INTERFACE

public static final short INTERFACE

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INVERSE

public static final short INVERSE

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KEY

public static final short KEY

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KEYS

public static final short KEYS

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LIST

public static final short LIST

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LONG

public static final short LONG

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Constant Field Values

MAPPING

public static final short MAPPING

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Constant Field Values

MODULE

public static final short MODULE

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Constant Field Values

NFRELATIONAL

public static final short NFRELATIONAL

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Constant Field Values

NT

public static final short NT

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OBJECT

public static final short OBJECT

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OCTET

public static final short OCTET

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Constant Field Values

OF

public static final short OF

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ON

public static final short ON

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ONEWAY

public static final short ONEWAY

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ORDER_BY

public static final short ORDER_BY

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OUT

public static final short OUT

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PERSISTENT

public static final short PERSISTENT

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RAISES

public static final short RAISES

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RANGE

public static final short RANGE

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READONLY

public static final short READONLY

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REFERENCES

public static final short REFERENCES

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RELATIONAL

public static final short RELATIONAL

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RELATIONSHIP

public static final short RELATIONSHIP

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RT

public static final short RT

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RULE

public static final short RULE

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SEMISTRUCTURED

public static final short SEMISTRUCTURED

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SEQUENCE

public static final short SEQUENCE

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SET

public static final short SET

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SHORT

public static final short SHORT

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SOURCE

public static final short SOURCE

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STRING

public static final short STRING

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STRUCT

public static final short STRUCT

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SWITCH

public static final short SWITCH

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SYN

public static final short SYN

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THEN

public static final short THEN

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TRANSIENT

public static final short TRANSIENT

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TRUE

public static final short TRUE

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TYPEDEF

public static final short TYPEDEF

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UNION

public static final short UNION

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UNSIGNED

public static final short UNSIGNED

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VIEW

public static final short VIEW

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VOID

public static final short VOID

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DATE

public static final short DATE

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TIMESTAMP

public static final short TIMESTAMP

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YYERRCODE

public static final short YYERRCODE

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yylhs

static final short[] yylhs

yylen

static final short[] yylen

yydefred

static final short[] yydefred

yydgoto

static final short[] yydgoto

yysindex

static final short[] yysindex

yyrindex

static final short[] yyrindex

yygindex

static final short[] yygindex

YYTABLESIZE

static final int YYTABLESIZE

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yytable

static final short[] yytable

yycheck

static final short[] yycheck

YYFINAL

static final short YYFINAL

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YYMAXTOKEN

static final short YYMAXTOKEN

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yyname

static final java.lang.String[] yyname

yyrule

static final java.lang.String[] yyrule

_typeContainer

private TypeContainer _typeContainer

stream to read from the ODL description.

st

private java.io.StreamTokenizer st

stream to read from the ODL description.

lineNo

private long lineNo

Line parsed. Used to keep trace of the current line parsed.

_error

private Error _error

Error support object.

err

private java.lang.String err

Stringa con il testo dell'errore (vuota quando non c'e' errore)

odli3Schema

private Schema odli3Schema

The parser fills ODL data structure starting from this Schema instace.

Constructor Detail

Parser

public Parser(Schema s)

Constructor: Creates a parser ready do parse into the given schema. Schema references the odli3 data structures.

Parser

public Parser()

Constructor: Creates a parser.

Method Detail

debug

void debug(java.lang.String msg)

val_dump

void val_dump()

state_push

void state_push(int state)

state_pop

int state_pop()

state_drop

void state_drop(int cnt)

state_peek

int state_peek(int relative)

init_stacks

boolean init_stacks()

dump_stacks

void dump_stacks(int count)

val_init

void val_init()

val_push

void val_push(Parserval val)

val_pop

Parserval val_pop()

val_drop

void val_drop(int cnt)

val_peek

Parserval val_peek(int relative)

parse

public boolean parse(java.io.StreamTokenizer st)
              throws OdlException

Parse a ODL schema contained in a stream. Routine di inizializzazione del parser
Il parser funziona sulla StreamTokenizer st .

Returns:

True se la sintassi e' stata riconosciuta correttamente
False altrimenti.

Throws:

OdlException

parseFile

public boolean parseFile(java.lang.String fileName)

Parse a ODL schema contained in a file. Routine di inizializzazione del parser
Il parser funziona sulla StreamTokenizer st .

Parameters:

fileName - the fileName of the ODL schema description.

Returns:

True se la sintassi e' stata riconosciuta correttamente
False altrimenti.

parse

public boolean parse(java.lang.String sodl)

Parse an ODLI3 description from a string.

Parameters:

sodl - the string containing the ODL schema description.

Returns:

true if decription acquired, false if errors occured.

parseNewSchema

public Schema parseNewSchema(java.lang.String sodl)

Parse an ODLI3 description from a string.

Parameters:

sodl - the string containing the ODL schema description.

Returns:

true if decription acquired, false if errors occured.

uso

private static void uso(java.io.PrintStream out)

Prints Instructions about how to use this class from command line.

main

public static void main(java.lang.String[] args)
                 throws java.io.NotSerializableException

This method reads an ODLI3 description from the file with the name passed in the first argument.

Throws:

java.io.NotSerializableException

getSchema

public Schema getSchema()

Restituisce la struttura entry point dal parser.

yylex

private int yylex()

Routine di estrazione di un token da StreamTokenizer, l'input avviene da standard input

Returns:

integer value
0 se eof
-1 se ci sono problemi tockenValue se riconosce un token

Throws:

Lavora - su Output, Input e streamTokenizer see none

yyerror

private void yyerror(java.lang.String s)

Routine di gestione errori statndard del parser

Parameters:

s - messaggio da visualizzare

yywarning

private void yywarning(java.lang.String s)

Routine di gestione degli avvertimenti statndard

Parameters:

s - messaggio da visualizzare

myDebug

private void myDebug(java.lang.String s)

Routine per la stampa delle informazioni di debug

Parameters:

s - messaggio da visualizzare

getInterface

private Interface getInterface(java.util.Vector list)

Search for an interface in a source. Cerca una determinata Classe locale dato il nome e la sorgente di appartenenza.

Parameters:

list - Vettore di due stringhe contenente il nome della sorgente e della classe

Returns:

La Classe locale trovata oppure null

getTmpTypeContainer

private TypeContainer getTmpTypeContainer()

A temporary type container is usefull to collect all type definitios during parsing.

flushTmpTypeContainerTo

private void flushTmpTypeContainerTo(TypeContainer t)

The temporary type container is usefull to collect all type definitios during parsing is flushed into a "stable" TypeContainer

setErrorOutStream

public void setErrorOutStream(java.io.PrintStream errorOutStream)

Changes the output stream where write error messages.

yylexdebug

void yylexdebug(int state,
                int ch)

yyparse

int yyparse()