org.jboss.dna.jcr.xpath
Class XPathParser.XPathTokenizer

java.lang.Object
  org.jboss.dna.jcr.xpath.XPathParser.XPathTokenizer

All Implemented Interfaces:

TokenStream.Tokenizer

Enclosing class:

XPathParser

public static class XPathParser.XPathTokenizer
extends Object
implements TokenStream.Tokenizer

A TokenStream.Tokenizer implementation that parses single- and double-quoted strings, symbols, words consisting of NCNames (as defined by the Namespaces in XML 1.0 specification), XPath comments,and other single-character tokens. Quoted phrases are delimited by single-quote and double-quote characters (which may be escaped within the quote). XPath comments begin with a "(:" and end with a ":)".

Field Summary

static int	COMMENT The token type for tokens that consist of all the characters between "(:" and ":)".
static int	NAME The token type for tokens that represent an unquoted string containing a character sequence made up of non-whitespace and non-symbol characters.
static int	OTHER The token type for tokens that consist of single characters that are not a SYMBOL, valid NAME, or QUOTED_STRING.
static int	QUOTED_STRING The token type for tokens that consist of all the characters within single-quotes, double-quotes, or square brackets.
static int	SYMBOL The token type for tokens that consist of an individual "symbol" character.

Constructor Summary

XPathParser.XPathTokenizer(boolean useComments)

Method Summary

void	tokenize(TokenStream.CharacterStream input, TokenStream.Tokens tokens) Process the supplied characters and construct the appropriate TokenStream.Token objects.

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final int NAME

The token type for tokens that represent an unquoted string containing a character sequence made up of non-whitespace and non-symbol characters.

See Also:

Constant Field Values

SYMBOL

public static final int SYMBOL

The token type for tokens that consist of an individual "symbol" character. The set of characters includes: (){}*.,;+%?$!<>|=:-[]^/\#@

See Also:

Constant Field Values

QUOTED_STRING

public static final int QUOTED_STRING

The token type for tokens that consist of all the characters within single-quotes, double-quotes, or square brackets.

See Also:

Constant Field Values

COMMENT

public static final int COMMENT

The token type for tokens that consist of all the characters between "(:" and ":)".

See Also:

Constant Field Values

OTHER

public static final int OTHER

The token type for tokens that consist of single characters that are not a SYMBOL, valid NAME, or QUOTED_STRING.

See Also:

Constant Field Values

Constructor Detail

XPathParser.XPathTokenizer

public XPathParser.XPathTokenizer(boolean useComments)

Method Detail

tokenize

public void tokenize(TokenStream.CharacterStream input,
                     TokenStream.Tokens tokens)
              throws ParsingException

Process the supplied characters and construct the appropriate TokenStream.Token objects.

Specified by:

tokenize in interface TokenStream.Tokenizer

Parameters:

input - the character input stream; never null

tokens - the factory for TokenStream.Token objects, which records the order in which the tokens are created

Throws:

ParsingException - if there is an error while processing the character stream (e.g., a quote is not closed, etc.)

See Also:

org.jboss.dna.common.text.TokenStream.Tokenizer#tokenize(CharacterStream, Tokens)