opendap.dap.parsers

Class Dap2Parser

java.lang.Object

opendap.dap.parsers.Dap2Parse

opendap.dap.parsers.Dap2Parser

public class Dap2Parser
extends Dap2Parse

A Bison parser, automatically generated from dap2.y.

Author:

LALR (1) parser skeleton written by Paolo Bonzini.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Dap2Parser.Lexer Communication interface between the scanner and the Bison-generated parser Dap2Parser.

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.
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.

Fields inherited from class opendap.dap.parsers.Dap2Parse

DapDAS, DapDDS, dapdebug, DapERR, DapNUL, EBADTYPE, EDAS, EDDS, EDIMSIZE

Constructor Summary

Constructors

Constructor and Description
Dap2Parser(BaseTypeFactory factory) Instantiates the Bison-generated parser.
Dap2Parser(Dap2Parser.Lexer yylexer) Instantiates the Bison-generated parser.

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.
boolean	getErrorVerbose() Return whether verbose error messages are enabled.
String	getURL()
boolean	parse() Parse input from the scanner that was specified at object construction time.
boolean	parse(String input) **********************************************
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.
void	setURL(String url)
protected void	yycdebug(String s)
void	yyerror(String msg) Print an error message via the lexer.

Methods inherited from class opendap.dap.parsers.Dap2Parse

dapparse, dasparse, ddsparse, errparse, getDAS, getDDS, getERR

Methods inherited from class java.lang.Object

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

Field Detail

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

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

Dap2Parser

public Dap2Parser(Dap2Parser.Lexer yylexer)

Instantiates the Bison-generated parser.

Parameters:

yylexer - The scanner that will supply tokens to the parser.

Dap2Parser

public Dap2Parser(BaseTypeFactory factory)

Instantiates the Bison-generated parser.

Parameters:

factory - the factory for generating tree nodes

Method Detail

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.

Specified by:

getDebugLevel in class Dap2Parse

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.

Specified by:

setDebugLevel in class Dap2Parse

Parameters:

level - The verbosity level for debugging output.

yyerror

public final void yyerror(String msg)

Print an error message via the lexer.

Parameters:

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.

parse

public boolean parse()
              throws ParseException,
                     ParseException

Parse input from the scanner that was specified at object construction time. Return whether the end of the input was reached successfully.

Returns:

true if the parsing succeeds. Note that this does not imply that there were no syntax errors.

Throws:

ParseException

parse

public boolean parse(String input)
              throws ParseException

Description copied from class: Dap2Parse

**********************************************

Specified by:

parse in class Dap2Parse

Throws:

ParseException

setURL

public void setURL(String url)

Specified by:

setURL in class Dap2Parse

getURL

public String getURL()

Specified by:

getURL in class Dap2Parse