dap4.ce.parser

Class CEParser

java.lang.Object

dap4.ce.parser.CEParser

public class CEParser
extends Object

Nested Class Summary

Nested Classes

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

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 CEAST	constraint
protected Map<String,Slice>	dimdefs
protected DapDataset	template
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.

Constructor Summary

Constructors

Constructor and Description
CEParser(DapDataset template)

Method Summary

Methods

Modifier and Type	Method and Description
CEAST	getConstraint()
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.
boolean	parse() Parse input from the scanner that was specified at object construction time.
boolean	parse(String document)
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(String msg) Print an error message via the lexer.

Methods inherited from class java.lang.Object

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

Field Detail

template

protected DapDataset template

dimdefs

protected Map<String,Slice> dimdefs

constraint

protected CEAST constraint

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

CEParser

public CEParser(DapDataset template)
         throws ParseException

Throws:

ParseException

Method Detail

getConstraint

public CEAST getConstraint()

parse

public boolean parse(String document)
              throws ParseException

Throws:

ParseException

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.

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