org.htmlparser.scanners
Class ScriptScanner

java.lang.Object
  org.htmlparser.scanners.TagScanner
      org.htmlparser.scanners.CompositeTagScanner
          org.htmlparser.scanners.ScriptScanner

All Implemented Interfaces:

Serializable, Scanner

public class ScriptScanner
extends CompositeTagScanner

The ScriptScanner handles script CDATA.

See Also:

Serialized Form

Field Summary

static boolean

STRICT Strict parsing of CDATA flag.

Constructor Summary

ScriptScanner()
Create a script scanner.

Method Summary

Tag	scan(Tag tag, Lexer lexer, NodeList stack) Scan for script.

Methods inherited from class org.htmlparser.scanners.CompositeTagScanner

addChild, createVirtualEndTag, finishTag, isTagToBeEndedFor

Methods inherited from class java.lang.Object

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

Field Detail

STRICT

public static boolean STRICT

Strict parsing of CDATA flag. If this flag is set true, the parsing of script is performed without regard to quotes. This means that erroneous script such as:

 document.write("</script>");
 

will be parsed in strict accordance with appendix B.3.2 Specifying non-HTML data of the HTML 4.01 Specification and hence will be split into two or more nodes. Correct javascript would escape the ETAGO:

 document.write("<\/script>");
 

If true, CDATA parsing will stop at the first ETAGO ("</") no matter whether it is quoted or not. If false, balanced quotes (either single or double) will shield an ETAGO. Beacuse of the possibility of quotes within single or multiline comments, these are also parsed. In most cases, users prefer non-strict handling since there is so much broken script out in the wild.

Constructor Detail

ScriptScanner

public ScriptScanner()

Create a script scanner.

Method Detail

scan

public Tag scan(Tag tag,
                Lexer lexer,
                NodeList stack)
         throws ParserException

Scan for script. Accumulates text from the page, until </[a-zA-Z] is encountered.

Specified by:

scan in interface Scanner

Overrides:

scan in class CompositeTagScanner

Parameters:

tag - The tag this scanner is responsible for.

lexer - The source of CDATA.

stack - The parse stack, not used.

Returns:

The resultant tag (may be unchanged).

Throws:

ParserException - if an unrecoverable problem occurs.