Package com.igormaznitsa.prologparser

Class DefaultParserContext

java.lang.Object

com.igormaznitsa.prologparser.DefaultParserContext

All Implemented Interfaces:

ParserContext

public class DefaultParserContext
extends Object
implements ParserContext

Default implementation of parser context. It is not thread safe one!

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Op[]	EMPTY
protected final Map<String,OpContainer>	opContainers
protected final Set<String>	opPrefixes
protected final int	parserContextFlags

Fields inherited from interface com.igormaznitsa.prologparser.ParserContext

FLAG_BLOCK_COMMENTS, FLAG_CURLY_BRACKETS, FLAG_DOT2_AS_LIST, FLAG_NONE, FLAG_VAR_AS_FUNCTOR, FLAG_ZERO_QUOTATION_ALLOWS_WHITESPACE_CHAR, FLAG_ZERO_QUOTATION_CHARCODE, FLAG_ZERO_STRUCT

Constructor Summary

Constructors

Constructor	Description
DefaultParserContext(int parserContextFlags)

Method Summary

Modifier and Type	Method	Description
DefaultParserContext	addOps(Op... operators)
final DefaultParserContext	addOps(List<Op>... operators)
protected void	fillPrefixes(String name)
Map<String,OpContainer>	findAllOperators()
OpContainer	findOpForName(PrologParser source, String operatorName)	Find operators for their name.
int	getFlags()	get parser flags for the parser context.
boolean	hasOpStartsWith(PrologParser source, String operatorNameStartSubstring)	Check that the context contains an operator starts with some string
static ParserContext	of(int parserContextFlags)
static ParserContext	of(int parserContextFlags, Op... operators)
static ParserContext	of(int parserContextFlags, List<Op>... operators)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.igormaznitsa.prologparser.ParserContext

getMaxTokenizerBufferLength

Field Details

EMPTY

protected static final Op[] EMPTY

opPrefixes

protected final Set<String> opPrefixes

opContainers

protected final Map<String,OpContainer> opContainers

parserContextFlags

protected final int parserContextFlags

Constructor Details

DefaultParserContext

public DefaultParserContext(int parserContextFlags)

Method Details

of

public static ParserContext of(int parserContextFlags)

of

public static ParserContext of(int parserContextFlags,
 Op... operators)

of

@SafeVarargs
public static ParserContext of(int parserContextFlags,
 List<Op>... operators)

findAllOperators

public Map<String,OpContainer> findAllOperators()

getFlags

public int getFlags()

Description copied from interface: ParserContext

get parser flags for the parser context.

Specified by:

getFlags in interface ParserContext

Returns:

flags as bit field

See Also:

• ParserContext.FLAG_NONE
• ParserContext.FLAG_VAR_AS_FUNCTOR
• ParserContext.FLAG_BLOCK_COMMENTS
• ParserContext.FLAG_CURLY_BRACKETS
• ParserContext.FLAG_ZERO_QUOTATION_CHARCODE
• ParserContext.FLAG_ZERO_STRUCT

fillPrefixes

protected void fillPrefixes(String name)

addOps

@SafeVarargs
public final DefaultParserContext addOps(List<Op>... operators)

addOps

public DefaultParserContext addOps(Op... operators)

hasOpStartsWith

public boolean hasOpStartsWith(PrologParser source,
 String operatorNameStartSubstring)

Description copied from interface: ParserContext

Check that the context contains an operator starts with some string

Specified by:

hasOpStartsWith in interface ParserContext

Parameters:

source - source prolog parser making request, must not be null

operatorNameStartSubstring - string to be used to look for operator starts with it, must not be null

Returns:

true if there is such operator, false otherwise

findOpForName

public OpContainer findOpForName(PrologParser source,
 String operatorName)

Description copied from interface: ParserContext

Find operators for their name.

Specified by:

findOpForName in interface ParserContext

Parameters:

source - source prolog parser making request, must not be null

operatorName - name of operators, must not be null

Returns:

operator container if such one is found, null otherwise