Class ScriptScanner

All Implemented Interfaces:
Serializable, Scanner

public class ScriptScanner extends CompositeTagScanner
The ScriptScanner handles script CDATA.
See Also:
  • Field Details

    • 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("</scriptinvalid input: '&gt'");
       
      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("<\/scriptinvalid input: '&gt'");
       
      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 Details

    • ScriptScanner

      public ScriptScanner()
      Create a script scanner.
  • Method Details

    • 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.