ru.biosoft.math.model
Interface Parser

All Known Implementing Classes:

AbstractParser

public interface Parser

Specifies general parser definition.

To do:

comments

Pendung:

other methods can be formalised and added.

Field Summary

static int	STATUS_ERROR There were some errors during expression parser.
static int	STATUS_FATAL_ERROR Some fatal errors have occured during the parser.
static int	STATUS_OK The expression was parsed successfully without any errors or wornings.
static int	STATUS_WARNING There were some warnings during expression parser.

Method Summary

ParserContext	getContext()
java.util.List	getMessages() Returns list of warning and error messages.
AstStart	getStartNode() Returs root of the AST tree.
boolean	isDeclareUndefinedVariables()
int	parse(java.lang.String expression)
void	setContext(ParserContext context)
void	setDeclareUndefinedVariables(boolean declareUndefinedVariables)

Field Detail

STATUS_OK

public static final int STATUS_OK

The expression was parsed successfully without any errors or wornings.

See Also:

Constant Field Values

STATUS_WARNING

public static final int STATUS_WARNING

There were some warnings during expression parser.

See Also:

Constant Field Values

STATUS_ERROR

public static final int STATUS_ERROR

There were some errors during expression parser.

See Also:

Constant Field Values

STATUS_FATAL_ERROR

public static final int STATUS_FATAL_ERROR

Some fatal errors have occured during the parser. For MathML such status indicates that XML document is not well formed, for linear syntax parser this indicates that some rror in grammar was found.

See Also:

Constant Field Values

Method Detail

getContext

public ParserContext getContext()

setContext

public void setContext(ParserContext context)

isDeclareUndefinedVariables

public boolean isDeclareUndefinedVariables()

setDeclareUndefinedVariables

public void setDeclareUndefinedVariables(boolean declareUndefinedVariables)

parse

public int parse(java.lang.String expression)

getStartNode

public AstStart getStartNode()

Returs root of the AST tree.

getMessages

public java.util.List getMessages()

Returns list of warning and error messages.