org.basex.query.regex.parse

Class RegExParser

java.lang.Object

org.basex.query.regex.parse.RegExParser

All Implemented Interfaces:

RegExParserConstants

public class RegExParser
extends java.lang.Object
implements RegExParserConstants

A parser for XSD regular expressions.

Author:

BaseX Team 2005-12, BSD License, Leo Woerteler

Field Summary

Fields

Modifier and Type	Field and Description
Token	jj_nt Next token.
Token	token Current token.
TokenManager	token_source User defined Token Manager.

Fields inherited from interface org.basex.query.regex.parse.RegExParserConstants

BACK_REF, BR_CLOSE, BR_OPEN, CAT_ESC, CHAR, COMMA, DIGIT, EOF, LINE_END, LINE_START, MULTI_ESC, NEG, NPAR_OPEN, NUMBER, OR, PAR_CLOSE, PAR_OPEN, PLUS, Q_MARK, QUANT_CLOSE, QUANT_OPEN, SINGLE_ESC, STAR, TO, tokenImage, WILDCARD

Constructor Summary

Constructors

Constructor and Description
RegExParser(byte[] regex, boolean strip, boolean all, boolean multi, boolean ci) Constructor.
RegExParser(TokenManager tm) Constructor with user supplied Token Manager.

Method Summary

Methods

Modifier and Type	Method and Description
RegExp	atom() Parses the "atom" rule.
BackRef	backReference() Parses the "backReference" rule.
RegExp	branch() Parses the "branch" rule.
Literal	Char() Parses the "Char" rule.
RegExp	charClass() Parses the "charClass" rule.
RegExp	charClassEsc() Parses the "charClassEsc" rule.
CharClass	charClassExpr() Parses the "charClassExpr" rule.
int	charOrEsc() Parses the "charOrEsc" rule.
RegExp	charRange() Parses the "charRange" rule.
void	disable_tracing() Disable tracing.
void	enable_tracing() Enable tracing.
ParseException	generateParseException() Generate ParseException.
Token	getNextToken() Get the next Token.
Token	getToken(int index) Get the specific Token.
RegExp	parse() Root production.
static java.util.regex.Pattern	parse(byte[] regex, byte[] mod, boolean ext, InputInfo ii) Compiles this regular expression to a Pattern.
CharGroup	posCharGroup() Parses the "posCharGroup" rule.
Quantifier	quantifier() Parses the "quantifier" rule.
int[]	quantity() Parses the "quantity" rule.
RegExp	regExp() Parses the "regExp" rule.
void	ReInit(TokenManager tm) Reinitialise.
int	XmlChar()

Methods inherited from class java.lang.Object

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

Field Detail

token_source

public TokenManager token_source

User defined Token Manager.

token

public Token token

Current token.

jj_nt

public Token jj_nt

Next token.

Constructor Detail

RegExParser

public RegExParser(byte[] regex,
           boolean strip,
           boolean all,
           boolean multi,
           boolean ci)

Constructor.

Parameters:

regex - regular expression to parse

strip - strip whitespace while lexing

all - dot matches all

ci - case insensitivity

RegExParser

public RegExParser(TokenManager tm)

Constructor with user supplied Token Manager.

Method Detail

parse

public static java.util.regex.Pattern parse(byte[] regex,
                            byte[] mod,
                            boolean ext,
                            InputInfo ii)
                                     throws QueryException

Compiles this regular expression to a Pattern.

Parameters:

mod - modifiers

ext - XQuery 3.0 syntax

ii - input info

Returns:

the pattern

Throws:

QueryException - query exception

parse

public final RegExp parse()
                   throws ParseException

Root production.

Throws:

ParseException

regExp

public final RegExp regExp()
                    throws ParseException

Parses the "regExp" rule.

Throws:

ParseException

branch

public final RegExp branch()
                    throws ParseException

Parses the "branch" rule. Parses the "piece" rule.

Throws:

ParseException

quantifier

public final Quantifier quantifier()
                            throws ParseException

Parses the "quantifier" rule.

Throws:

ParseException

quantity

public final int[] quantity()
                     throws ParseException

Parses the "quantity" rule. Parses the "quantRange" rule. Parses the "quantMin" rule. Parses the "quantExact" rule.

Throws:

ParseException

atom

public final RegExp atom()
                  throws ParseException

Parses the "atom" rule.

Throws:

ParseException

Char

public final Literal Char()
                   throws ParseException

Parses the "Char" rule.

Throws:

ParseException

backReference

public final BackRef backReference()
                            throws ParseException

Parses the "backReference" rule.

Throws:

ParseException

charClass

public final RegExp charClass()
                       throws ParseException

Parses the "charClass" rule.

Throws:

ParseException

charClassEsc

public final RegExp charClassEsc()
                          throws ParseException

Parses the "charClassEsc" rule.

Throws:

ParseException

charClassExpr

public final CharClass charClassExpr()
                              throws ParseException

Parses the "charClassExpr" rule. Parses the "charClassSub" rule.

Throws:

ParseException

posCharGroup

public final CharGroup posCharGroup()
                             throws ParseException

Parses the "posCharGroup" rule.

Throws:

ParseException

charRange

public final RegExp charRange()
                       throws ParseException

Parses the "charRange" rule.

Throws:

ParseException

charOrEsc

public final int charOrEsc()
                    throws ParseException

Parses the "charOrEsc" rule.

Throws:

ParseException

XmlChar

public final int XmlChar()
                  throws ParseException

Throws:

ParseException

ReInit

public void ReInit(TokenManager tm)

Reinitialise.

getNextToken

public final Token getNextToken()

Get the next Token.

getToken

public final Token getToken(int index)

Get the specific Token.

generateParseException

public ParseException generateParseException()

Generate ParseException.

enable_tracing

public final void enable_tracing()

Enable tracing.

disable_tracing

public final void disable_tracing()

Disable tracing.