Package com.igormaznitsa.prologparser

Class PrologParser

java.lang.Object

com.igormaznitsa.prologparser.PrologParser

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<PrologTerm>

Direct Known Subclasses:

GenericPrologParser

public abstract class PrologParser
extends Object
implements Iterable<PrologTerm>, Closeable

Abstract base Prolog parser.

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	autoCloseReaderFlag
protected final ParserContext	context
static final PrologTerm[]	EMPTY_TERM_ARRAY
protected static final Koi7CharOpMap	META_OP_MAP
private static final OpContainer	OPERATOR_COMMA
private static final OpContainer	OPERATOR_DOT
private static final OpContainer	OPERATOR_LEFTBRACKET
private static final OpContainer	OPERATOR_LEFTCURLYBRACKET
private static final OpContainer	OPERATOR_RIGHTBRACKET
private static final OpContainer	OPERATOR_RIGHTCURLYBRACKET
private static final OpContainer	OPERATOR_RIGHTSQUAREBRACKET
private static final OpContainer	OPERATOR_VERTICALBAR
private static final Koi7CharOpMap	OPERATORS_END_LIST
private static final Koi7CharOpMap	OPERATORS_INSIDE_LIST
private static final Koi7CharOpMap	OPERATORS_INSIDE_STRUCT
private static final Koi7CharOpMap	OPERATORS_PHRASE
private static final Koi7CharOpMap	OPERATORS_SUBBLOCK
private static final Koi7CharOpMap	OPERATORS_SUBBLOCK_CURLY
protected final int	parserFlags
private final Tokenizer	tokenizer

Constructor Summary

Constructors

Constructor	Description
PrologParser(Reader source, ParserContext context)

Method Summary

Modifier and Type	Method	Description
PrologParser	autoCloseReader()
private void	checkForNull(Object obj, String message, TokenizerResult startTerm)
void	close()
static Op	findBaseMetaOperator(String text, OpAssoc type)
static Koi7CharOpMap	findMetaOps()
ParserContext	getContext()
Tokenizer	getInternalTokenizer()
private static int	getOnlyCharCode(String text)
boolean	hasNext()
private boolean	isEndOperator(PrologTerm operator, Koi7CharOpMap endOperators)
Iterator<PrologTerm>	iterator()
PrologTerm	next()
private PrologTerm	readBlock(Koi7CharOpMap endOperators)
private PrologTerm	readList(TokenizerResult openingBracket)
private PrologStruct	readStruct(PrologTerm functor)
Stream<PrologTerm>	stream()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

EMPTY_TERM_ARRAY

public static final PrologTerm[] EMPTY_TERM_ARRAY

META_OP_MAP

protected static final Koi7CharOpMap META_OP_MAP

OPERATOR_COMMA

private static final OpContainer OPERATOR_COMMA

OPERATOR_LEFTBRACKET

private static final OpContainer OPERATOR_LEFTBRACKET

OPERATOR_LEFTCURLYBRACKET

private static final OpContainer OPERATOR_LEFTCURLYBRACKET

OPERATOR_RIGHTBRACKET

private static final OpContainer OPERATOR_RIGHTBRACKET

OPERATOR_RIGHTCURLYBRACKET

private static final OpContainer OPERATOR_RIGHTCURLYBRACKET

OPERATOR_RIGHTSQUAREBRACKET

private static final OpContainer OPERATOR_RIGHTSQUAREBRACKET

OPERATOR_DOT

private static final OpContainer OPERATOR_DOT

OPERATOR_VERTICALBAR

private static final OpContainer OPERATOR_VERTICALBAR

OPERATORS_PHRASE

private static final Koi7CharOpMap OPERATORS_PHRASE

OPERATORS_INSIDE_LIST

private static final Koi7CharOpMap OPERATORS_INSIDE_LIST

OPERATORS_END_LIST

private static final Koi7CharOpMap OPERATORS_END_LIST

OPERATORS_INSIDE_STRUCT

private static final Koi7CharOpMap OPERATORS_INSIDE_STRUCT

OPERATORS_SUBBLOCK

private static final Koi7CharOpMap OPERATORS_SUBBLOCK

OPERATORS_SUBBLOCK_CURLY

private static final Koi7CharOpMap OPERATORS_SUBBLOCK_CURLY

autoCloseReaderFlag

private volatile boolean autoCloseReaderFlag

context

protected final ParserContext context

parserFlags

protected final int parserFlags

tokenizer

private final Tokenizer tokenizer

Constructor Details

PrologParser

public PrologParser(Reader source,
 ParserContext context)

Method Details

autoCloseReader

public PrologParser autoCloseReader()

findBaseMetaOperator

public static Op findBaseMetaOperator(String text,
 OpAssoc type)

getOnlyCharCode

private static int getOnlyCharCode(String text)

findMetaOps

public static Koi7CharOpMap findMetaOps()

getInternalTokenizer

public Tokenizer getInternalTokenizer()

isEndOperator

private boolean isEndOperator(PrologTerm operator,
 Koi7CharOpMap endOperators)

getContext

public ParserContext getContext()

hasNext

public boolean hasNext()

next

public PrologTerm next()

readStruct

private PrologStruct readStruct(PrologTerm functor)

readList

private PrologTerm readList(TokenizerResult openingBracket)

checkForNull

private void checkForNull(Object obj,
 String message,
 TokenizerResult startTerm)

readBlock

private PrologTerm readBlock(Koi7CharOpMap endOperators)

iterator

public Iterator<PrologTerm> iterator()

Specified by:

iterator in interface Iterable<PrologTerm>

stream

public Stream<PrologTerm> stream()

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException