java.lang.Object
- com.opensymphony.module.sitemesh.parser.FastPageParser

All Implemented Interfaces:

PageParser
```
public final class FastPageParser
extends java.lang.Object
implements PageParser
```
Very fast PageParser implementation for parsing HTML.
Produces FastPage.

Version:

$Revision: 1.10 $

Author:

Victor Salaman

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private class FastPageParser.Tag

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`BODY_HASH`
`private static int`	`CONTENT_HASH`
`private static int`	`FRAME_HASH`
`private static int`	`FRAMESET_HASH`
`private static int`	`HEAD_HASH`
`private static int`	`HTML_HASH`
`private static int`	`META_HASH`
`private static int`	`PARAMETER_HASH`
`private static int`	`SLASH_BODY_HASH`
`private static int`	`SLASH_HEAD_HASH`
`private static int`	`SLASH_HTML_HASH`
`private static int`	`SLASH_TITLE_HASH`
`private static int`	`SLASH_XML_HASH`
`private static int`	`SLASH_XMP_HASH`
`private static int`	`STATE_CDATA`
`private static int`	`STATE_COMMENT`
`private static int`	`STATE_DOCTYPE`
`private static int`	`STATE_EOF`
`private static int`	`STATE_SCRIPT`
`private static int`	`STATE_TAG`
`private static int`	`STATE_TAG_QUOTE`
`private static int`	`STATE_TEXT`
`private static int`	`TAG_STATE_BODY`
`private static int`	`TAG_STATE_HEAD`
`private static int`	`TAG_STATE_HTML`
`private static int`	`TAG_STATE_NONE`
`private static int`	`TAG_STATE_TITLE`
`private static int`	`TAG_STATE_XML`
`private static int`	`TAG_STATE_XMP`
`private static int`	`TITLE_HASH`
`private static int`	`TOKEN_CDATA`
`private static int`	`TOKEN_COMMENT`
`private static int`	`TOKEN_DOCTYPE`
`private static int`	`TOKEN_EMPTYTAG`
`private static int`	`TOKEN_EOF`
`private static int`	`TOKEN_NONE`
`private static int`	`TOKEN_SCRIPT`
`private static int`	`TOKEN_TAG`
`private static int`	`TOKEN_TEXT`
`private static int`	`XML_HASH`
`private static int`	`XMP_HASH`

Constructor Summary

Constructors
Constructor Description

FastPageParser()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private FastPage`	`internalParse(java.io.Reader reader)`
`Page`	`parse(char[] data)`	This builds a Page.
`Page`	`parse(java.io.Reader reader)`
`private static FastPageParser.Tag`	`parseProperties(FastPageParser.Tag tag, CharArray buffer)`	This is called when we need to extract the properties for the tag from the tag's HTML.
`private FastPageParser.Tag`	`parseTag(FastPageParser.Tag tag, CharArray buf)`	Populates a `FastPageParser.Tag` object using data from the supplied `CharArray`.
`private static boolean`	`shouldWriteToHead(int state, int laststate)`
`private static void`	`writeTag(int state, int laststate, boolean hide, CharArray _head, CharArray _buffer, CharArray _body)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - TOKEN_NONE
```
private static final int TOKEN_NONE
```
    See Also:
    
    Constant Field Values
  - TOKEN_EOF
```
private static final int TOKEN_EOF
```
    See Also:
    
    Constant Field Values
  - TOKEN_TEXT
```
private static final int TOKEN_TEXT
```
    See Also:
    
    Constant Field Values
  - TOKEN_TAG
```
private static final int TOKEN_TAG
```
    See Also:
    
    Constant Field Values
  - TOKEN_COMMENT
```
private static final int TOKEN_COMMENT
```
    See Also:
    
    Constant Field Values
  - TOKEN_CDATA
```
private static final int TOKEN_CDATA
```
    See Also:
    
    Constant Field Values
  - TOKEN_SCRIPT
```
private static final int TOKEN_SCRIPT
```
    See Also:
    
    Constant Field Values
  - TOKEN_DOCTYPE
```
private static final int TOKEN_DOCTYPE
```
    See Also:
    
    Constant Field Values
  - TOKEN_EMPTYTAG
```
private static final int TOKEN_EMPTYTAG
```
    See Also:
    
    Constant Field Values
  - STATE_EOF
```
private static final int STATE_EOF
```
    See Also:
    
    Constant Field Values
  - STATE_TEXT
```
private static final int STATE_TEXT
```
    See Also:
    
    Constant Field Values
  - STATE_TAG
```
private static final int STATE_TAG
```
    See Also:
    
    Constant Field Values
  - STATE_COMMENT
```
private static final int STATE_COMMENT
```
    See Also:
    
    Constant Field Values
  - STATE_TAG_QUOTE
```
private static final int STATE_TAG_QUOTE
```
    See Also:
    
    Constant Field Values
  - STATE_CDATA
```
private static final int STATE_CDATA
```
    See Also:
    
    Constant Field Values
  - STATE_SCRIPT
```
private static final int STATE_SCRIPT
```
    See Also:
    
    Constant Field Values
  - STATE_DOCTYPE
```
private static final int STATE_DOCTYPE
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_NONE
```
private static final int TAG_STATE_NONE
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_HTML
```
private static final int TAG_STATE_HTML
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_HEAD
```
private static final int TAG_STATE_HEAD
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_TITLE
```
private static final int TAG_STATE_TITLE
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_BODY
```
private static final int TAG_STATE_BODY
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_XML
```
private static final int TAG_STATE_XML
```
    See Also:
    
    Constant Field Values
  - TAG_STATE_XMP
```
private static final int TAG_STATE_XMP
```
    See Also:
    
    Constant Field Values
  - SLASH_XML_HASH
```
private static final int SLASH_XML_HASH
```
    See Also:
    
    Constant Field Values
  - XML_HASH
```
private static final int XML_HASH
```
    See Also:
    
    Constant Field Values
  - SLASH_XMP_HASH
```
private static final int SLASH_XMP_HASH
```
    See Also:
    
    Constant Field Values
  - XMP_HASH
```
private static final int XMP_HASH
```
    See Also:
    
    Constant Field Values
  - HTML_HASH
```
private static final int HTML_HASH
```
    See Also:
    
    Constant Field Values
  - SLASH_HTML_HASH
```
private static final int SLASH_HTML_HASH
```
    See Also:
    
    Constant Field Values
  - HEAD_HASH
```
private static final int HEAD_HASH
```
    See Also:
    
    Constant Field Values
  - TITLE_HASH
```
private static final int TITLE_HASH
```
    See Also:
    
    Constant Field Values
  - SLASH_TITLE_HASH
```
private static final int SLASH_TITLE_HASH
```
    See Also:
    
    Constant Field Values
  - PARAMETER_HASH
```
private static final int PARAMETER_HASH
```
    See Also:
    
    Constant Field Values
  - META_HASH
```
private static final int META_HASH
```
    See Also:
    
    Constant Field Values
  - SLASH_HEAD_HASH
```
private static final int SLASH_HEAD_HASH
```
    See Also:
    
    Constant Field Values
  - FRAMESET_HASH
```
private static final int FRAMESET_HASH
```
    See Also:
    
    Constant Field Values
  - FRAME_HASH
```
private static final int FRAME_HASH
```
    See Also:
    
    Constant Field Values
  - BODY_HASH
```
private static final int BODY_HASH
```
    See Also:
    
    Constant Field Values
  - SLASH_BODY_HASH
```
private static final int SLASH_BODY_HASH
```
    See Also:
    
    Constant Field Values
  - CONTENT_HASH
```
private static final int CONTENT_HASH
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - FastPageParser
```
public FastPageParser()
```
- Method Detail
  - parse
```
public Page parse(char[] data)
           throws java.io.IOException
```
    Description copied from interface: PageParser
    
    This builds a Page.
    
    Specified by:
    
    parse in interface PageParser
    
    Throws:
    
    java.io.IOException
  - parse
```
public Page parse(java.io.Reader reader)
```
  - internalParse
```
private FastPage internalParse(java.io.Reader reader)
```
  - writeTag
```
private static void writeTag(int state,
                             int laststate,
                             boolean hide,
                             CharArray _head,
                             CharArray _buffer,
                             CharArray _body)
```
  - shouldWriteToHead
```
private static boolean shouldWriteToHead(int state,
                                         int laststate)
```
  - parseTag
```
private FastPageParser.Tag parseTag(FastPageParser.Tag tag,
                                    CharArray buf)
```
    Populates a FastPageParser.Tag object using data from the supplied CharArray. The supplied tag parameter is reset and reused - this avoids excess object creation which hwlps performance.
    
    Returns:
    
    the same tag instance that was passed in, except it will be populated with a new name value (and the corresponding nameEndIdx value). However if the tag contained nathing but whitespace, this method will return null.
  - parseProperties
```
private static FastPageParser.Tag parseProperties(FastPageParser.Tag tag,
                                                  CharArray buffer)
```
    This is called when we need to extract the properties for the tag from the tag's HTML. We only call this when necessary since it has quite a lot of overhead.
    
    Parameters:
    
    tag - the tag that is currently being processed. This should be the tag that was returned as a result of a call to parseTag(FastPageParser.Tag, CharArray) (ie, it has the name and nameEndIdx fields set correctly for the tag in question. The properties field can be in an undefined state - it will get replaced regardless).
    
    buffer - a CharArray containing the entire tag that is being parsed.
    
    Returns:
    
    the same tag instance that was passed in, only it will now be populated with any properties that were specified in the tag's HTML.

Class FastPageParser

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

TOKEN_NONE

TOKEN_EOF

TOKEN_TEXT

TOKEN_TAG

TOKEN_COMMENT

TOKEN_CDATA

TOKEN_SCRIPT

TOKEN_DOCTYPE

TOKEN_EMPTYTAG

STATE_EOF

STATE_TEXT

STATE_TAG

STATE_COMMENT

STATE_TAG_QUOTE

STATE_CDATA

STATE_SCRIPT

STATE_DOCTYPE

TAG_STATE_NONE

TAG_STATE_HTML

TAG_STATE_HEAD

TAG_STATE_TITLE

TAG_STATE_BODY

TAG_STATE_XML

TAG_STATE_XMP

SLASH_XML_HASH

XML_HASH

SLASH_XMP_HASH

XMP_HASH

HTML_HASH

SLASH_HTML_HASH

HEAD_HASH

TITLE_HASH

SLASH_TITLE_HASH

PARAMETER_HASH

META_HASH

SLASH_HEAD_HASH

FRAMESET_HASH

FRAME_HASH

BODY_HASH

SLASH_BODY_HASH

CONTENT_HASH

Constructor Detail

FastPageParser

Method Detail

parse

parse

internalParse

writeTag

shouldWriteToHead

parseTag

parseProperties