dap4.core.dmr.parser

Class Dap4Parser

java.lang.Object

org.xml.sax.helpers.DefaultHandler

dap4.core.dmr.parser.SaxEventHandler

dap4.core.dmr.parser.Dap4EventHandler

dap4.core.dmr.parser.Dap4Actions

dap4.core.dmr.parser.Dap4Parser

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class Dap4Parser
extends Dap4Actions

Implement the Dap4 Parse Actions Output depends on isdatadmr flag.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Dap4ParserBody.Lexer Communication interface between the scanner and the Bison-generated parser Dap4ParserBody.

Field Summary

Fields

Modifier and Type	Field and Description
static String	bisonSkeleton Name of the skeleton that generated this parser.
static String	bisonVersion Version number for the Bison executable that generated this parser.
protected boolean	debug
protected ErrorResponse	errorresponse
protected DapFactory	factory
protected static boolean	isdatadmr
protected DapDataset	root
protected Stack<DapNode>	scopestack
static int	YYABORT Returned by a Bison action in order to stop the parsing process and return failure (false).
static int	YYACCEPT Returned by a Bison action in order to stop the parsing process and return success (true).
static int	YYERROR Returned by a Bison action in order to start error recovery without printing an error message.
static int	YYPUSH_MORE Returned by a Bison action in order to request a new token.

Fields inherited from class dap4.core.dmr.parser.SaxEventHandler

document, input, locator, saxparser, spf

Constructor Summary

Constructors

Constructor and Description
Dap4Parser(DapFactory factory)

Method Summary

Methods

Modifier and Type	Method and Description
int	getDebugLevel() Answer the verbosity of the debugging output; 0 means that all kinds of output from the parser are suppressed.
PrintStream	getDebugStream() Return the PrintStream on which the debugging output is printed.
DapDataset	getDMR()
ErrorResponse	getErrorResponse()
boolean	getErrorVerbose() Return whether verbose error messages are enabled.
boolean	parse(String input)
void	push_parse_initialize() (Re-)Initialize the state of the push parser.
int	push_parse(int yylextoken, Object yylexval, Bison.Position yylexpos) Push parse given input from an external lexer.
int	push_parse(int yylextoken, Object yylexval, dap4.core.dmr.parser.Dap4ParserBody.Location yylexloc) Push Parse input from external lexer
boolean	recovering() Return whether error recovery is being done.
void	setDebugLevel(int level) Set the verbosity of the debugging output; 0 means that all kinds of output from the parser are suppressed.
void	setDebugStream(PrintStream s) Set the PrintStream on which the debug output is printed.
void	setErrorVerbose(boolean verbose) Set the verbosity of error messages.
protected void	yycdebug(String s)
void	yyerror(Bison.Position pos, String msg) Print an error message via the lexer.
void	yyerror(dap4.core.dmr.parser.Dap4ParserBody.Location loc, String msg) Print an error message via the lexer.
void	yyerror(String msg) Print an error message via the lexer.

Methods inherited from class dap4.core.dmr.parser.Dap4EventHandler

yyevent

Methods inherited from class dap4.core.dmr.parser.SaxEventHandler

characters, endDocument, endElement, endPrefixMapping, error, fatalError, getLocator, ignorableWhitespace, locatedError, locatedEvent, notationDecl, processingInstruction, report, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startElement, startPrefixMapping, trace, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Field Detail

isdatadmr

protected static final boolean isdatadmr

See Also:

Constant Field Values

factory

protected DapFactory factory

errorresponse

protected ErrorResponse errorresponse

scopestack

protected Stack<DapNode> scopestack

root

protected DapDataset root

debug

protected boolean debug

bisonVersion

public static final String bisonVersion

Version number for the Bison executable that generated this parser.

See Also:

Constant Field Values

bisonSkeleton

public static final String bisonSkeleton

Name of the skeleton that generated this parser.

See Also:

Constant Field Values

YYACCEPT

public static final int YYACCEPT

Returned by a Bison action in order to stop the parsing process and return success (true).

See Also:

Constant Field Values

YYABORT

public static final int YYABORT

Returned by a Bison action in order to stop the parsing process and return failure (false).

See Also:

Constant Field Values

YYPUSH_MORE

public static final int YYPUSH_MORE

Returned by a Bison action in order to request a new token.

See Also:

Constant Field Values

YYERROR

public static final int YYERROR

Returned by a Bison action in order to start error recovery without printing an error message.

See Also:

Constant Field Values

Constructor Detail

Dap4Parser

public Dap4Parser(DapFactory factory)

Method Detail

getErrorResponse

public ErrorResponse getErrorResponse()

getDMR

public DapDataset getDMR()

parse

public boolean parse(String input)
              throws SAXException

Overrides:

parse in class SaxEventHandler

Throws:

SAXException

getErrorVerbose

public final boolean getErrorVerbose()

Return whether verbose error messages are enabled.

setErrorVerbose

public final void setErrorVerbose(boolean verbose)

Set the verbosity of error messages.

Parameters:

verbose - True to request verbose error messages.

getDebugStream

public final PrintStream getDebugStream()

Return the PrintStream on which the debugging output is printed.

setDebugStream

public final void setDebugStream(PrintStream s)

Set the PrintStream on which the debug output is printed.

Parameters:

s - The stream that is used for debugging output.

getDebugLevel

public final int getDebugLevel()

Answer the verbosity of the debugging output; 0 means that all kinds of output from the parser are suppressed.

setDebugLevel

public final void setDebugLevel(int level)

Set the verbosity of the debugging output; 0 means that all kinds of output from the parser are suppressed.

Parameters:

level - The verbosity level for debugging output.

yyerror

public final void yyerror(String msg)

Print an error message via the lexer. Use a null location.

Parameters:

msg - The error message.

yyerror

public final void yyerror(dap4.core.dmr.parser.Dap4ParserBody.Location loc,
           String msg)

Print an error message via the lexer.

Parameters:

loc - The location associated with the message.

msg - The error message.

yyerror

public final void yyerror(Bison.Position pos,
           String msg)

Print an error message via the lexer.

Parameters:

pos - The position associated with the message.

msg - The error message.

yycdebug

protected final void yycdebug(String s)

recovering

public final boolean recovering()

Return whether error recovery is being done. In this state, the parser reads token until it reaches a known state, and then restarts normal operation.

push_parse

public int push_parse(int yylextoken,
             Object yylexval,
             dap4.core.dmr.parser.Dap4ParserBody.Location yylexloc)
               throws DapException,
                      DapException

Push Parse input from external lexer

Parameters:

yylextoken - current token

yylexval - current lval

yylexloc - current position

Returns:

YYACCEPT, YYABORT, YYPUSH_MORE

Throws:

DapException

push_parse_initialize

public void push_parse_initialize()

(Re-)Initialize the state of the push parser.

push_parse

public int push_parse(int yylextoken,
             Object yylexval,
             Bison.Position yylexpos)
               throws DapException,
                      DapException

Push parse given input from an external lexer.

Parameters:

yylextoken - current token

yylexval - current lval

yyylexpos - current position

Returns:

YYACCEPT, YYABORT, YYPUSH_MORE

Throws:

DapException