org.jboss.dna.cnd
Class CndTokenizer

java.lang.Object
  org.jboss.dna.cnd.CndTokenizer

All Implemented Interfaces:

TokenStream.Tokenizer

public class CndTokenizer
extends Object
implements TokenStream.Tokenizer

A TokenStream.Tokenizer implementation that adheres to the CND format by ignoring whitespace while including tokens for individual symbols, the period ('.'), single-quoted strings, double-quoted strings, whitespace-delimited words, and optionally comments. This tokenizer optionally includes comments and vendor extensions.

Field Summary

static int	COMMENT The token type for tokens that consist of all the characters between "/*" and "*/" or between "//" and the next line terminator (e.g., '\n', '\r' or "\r\n").
static int	DECIMAL The token type for tokens that consist of an individual '.' character.
static int	DOUBLE_QUOTED_STRING The token type for tokens that consist of all the characters within double-quotes.
static int	SINGLE_QUOTED_STRING The token type for tokens that consist of all the characters within single-quotes.
static int	SYMBOL The token type for tokens that consist of an individual "symbol" character.
static int	VENDOR_EXTENSION The token type for the token containing a vendor extension block.
static int	WORD The token type for tokens that represent an unquoted string containing a character sequence made up of non-whitespace and non-symbol characters.

Constructor Summary

CndTokenizer(boolean useComments, boolean useVendorExtensions)

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

WORD

public static final int WORD

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

DECIMAL

public static final int DECIMAL

The token type for tokens that consist of an individual '.' character.

See Also:

Constant Field Values

SINGLE_QUOTED_STRING

public static final int SINGLE_QUOTED_STRING

The token type for tokens that consist of all the characters within single-quotes. Single quote characters are included if they are preceded (escaped) by a '\' character.

See Also:

Constant Field Values

DOUBLE_QUOTED_STRING

public static final int DOUBLE_QUOTED_STRING

The token type for tokens that consist of all the characters within double-quotes. Double quote characters are included if they are preceded (escaped) by a '\' character.

See Also:

Constant Field Values

COMMENT

public static final int COMMENT

The token type for tokens that consist of all the characters between "/*" and "*/" or between "//" and the next line terminator (e.g., '\n', '\r' or "\r\n").

See Also:

Constant Field Values

VENDOR_EXTENSION

public static final int VENDOR_EXTENSION

The token type for the token containing a vendor extension block.

See Also:

Constant Field Values

Constructor Detail

CndTokenizer

public CndTokenizer(boolean useComments,
                    boolean useVendorExtensions)

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)