javax.swing.text.html.parser
Class DocumentParser
- DTDConstants
A simple error-tolerant HTML parser that uses a DTD document
to access data on the possible tokens, arguments and syntax.
The parser reads an HTML content from a Reader and calls various
notifying methods (which should be overridden in a subclass)
when tags or data are encountered.
Some HTML elements need no opening or closing tags. The
task of this parser is to invoke the tag handling methods also when
the tags are not explicitly specified and must be supposed using
information, stored in the DTD.
For example, parsing the document
<table><tr><td>a<td>b<td>c</tr>
will invoke exactly the handling methods exactly in the same order
(and with the same parameters) as if parsing the document:
<html><head></head><body><table><
tbody><tr><td>a
</td><td>b
</td><td>c
</td></tr><
/tbody></table></body></html>
(supposed tags are given in italics). The parser also supports
obsolete elements of HTML syntax.
In this implementation, DocumentParser is directly derived from its
ancestor without changes of functionality.
ANY, CDATA, CONREF, CURRENT, DEFAULT, EMPTY, ENDTAG, ENTITIES, ENTITY, FIXED, GENERAL, ID, IDREF, IDREFS, IMPLIED, MD, MODEL, MS, NAME, NAMES, NMTOKEN, NMTOKENS, NOTATION, NUMBER, NUMBERS, NUTOKEN, NUTOKENS, PARAMETER, PI, PUBLIC, RCDATA, REQUIRED, SDATA, STARTTAG, SYSTEM |
DocumentParser(DTD a_dtd)- Creates a new parser that uses the given DTD to access data on the
possible tokens, arguments and syntax.
|
protected void | handleComment(char[] comment)- Handle HTML comment.
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protected void | handleEmptyTag(TagElement tag)- Handle the tag with no content, like <br>.
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protected void | handleEndTag(TagElement tag)- The method is called when the HTML closing tag ((like </table>)
is found or if the parser concludes that the one should be present
in the current position.
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protected void | handleError(int line, String message)
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protected void | handleStartTag(TagElement tag)- The method is called when the HTML opening tag ((like <table>)
is found or if the parser concludes that the one should be present
in the current position.
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protected void | handleText(char[] text)- Handle the text section.
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void | parse(Reader reader, HTMLEditorKit.ParserCallback aCallback, boolean ignoreCharSet)- Parses the HTML document, calling methods of the provided
callback.
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endTag, error, error, error, error, flushAttributes, getAttributes, getCurrentLine, getCurrentPos, handleComment, handleEOFInComment, handleEmptyTag, handleEndTag, handleError, handleStartTag, handleText, handleTitle, makeTag, makeTag, markFirstTime, parse, parseDTDMarkup, parseMarkupDeclarations, startTag |
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
DocumentParser
public DocumentParser(DTD a_dtd)
Creates a new parser that uses the given DTD to access data on the
possible tokens, arguments and syntax. There is no single - step way
to get a default DTD; you must either refer to the implementation -
specific packages, write your own DTD or obtain the working instance
of parser in other way, for example, by calling
HTMLEditorKit.getParser().
handleComment
protected void handleComment(char[] comment)
Handle HTML comment. The default method returns without action.
- handleComment in interface Parser
comment - the comment being handled
handleEndTag
protected void handleEndTag(TagElement tag)
The method is called when the HTML closing tag ((like </table>)
is found or if the parser concludes that the one should be present
in the current position.
- handleEndTag in interface Parser
tag - The tag being handled
handleStartTag
protected void handleStartTag(TagElement tag)
The method is called when the HTML opening tag ((like <table>)
is found or if the parser concludes that the one should be present
in the current position.
- handleStartTag in interface Parser
tag - The tag being handled
parse
public void parse(Reader reader,
HTMLEditorKit.ParserCallback aCallback,
boolean ignoreCharSet)
throws IOException Parses the HTML document, calling methods of the provided
callback. This method must be multithread - safe.
reader - The reader to read the HTML document fromaCallback - The callback that is notifyed about the presence
of HTML elements in the document.ignoreCharSet - If thrue, any charset changes during parsing
are ignored.
DocumentParser.java -- A parser for HTML documents.
Copyright (C) 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
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it under the terms of the GNU General Public License as published by
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02110-1301 USA.
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