Problem w/ DocumentBuilder parse method

John L. · Dec 30, 2012

I'm pre-processing a file in an attempt to use the subject method, and receive the following error:

[Fatal Error] EXTRACT.TMP:51:23: The entity "nbsp" was referenced, but not declared.
Exception in thread "main" org.xml.sax.SAXParseException: The entity "nbsp" was referenced, but not declared.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at Extract.CmdLine(Extract.java:144)
at Extract.main(Extract.java:79)

The pertinent portion of the file being parsed follows:

[45]<div>
[46]<input type="hidden" name="cx" value="partner-pub-5436175752152469:m8vqbgi2n
21" />
[47]<input type="hidden" name="cof" value="FORID:10" />
[48]<input type="hidden" name="ie" value="ISO-8859-1" />
[49]<input type="text" name="q" size="55" />
[50]<input type="submit" name="sa" value="PCM Search" />
[51]         </div >

What is the required declaration syntax for   to allow the file to be parsed?

Thanks in advance for your time and consideration.

Arne Vajhøj · Dec 30, 2012

I'm pre-processing a file in an attempt to use the subject method, and receive the following error:

[Fatal Error] EXTRACT.TMP:51:23: The entity "nbsp" was referenced, but not declared.
Exception in thread "main" org.xml.sax.SAXParseException: The entity "nbsp" was referenced, but not declared.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at Extract.CmdLine(Extract.java:144)
at Extract.main(Extract.java:79)

The pertinent portion of the file being parsed follows:

[45]<div>
[46]<input type="hidden" name="cx" value="partner-pub-5436175752152469:m8vqbgi2n
21" />
[47]<input type="hidden" name="cof" value="FORID:10" />
[48]<input type="hidden" name="ie" value="ISO-8859-1" />
[49]<input type="text" name="q" size="55" />
[50]<input type="submit" name="sa" value="PCM Search" />
[51]         </div >

What is the required declaration syntax for   to allow the file to be parsed?

Entities should be defined in the DTD.

The above looks like XHTML, so maybe it will work if you add a proper
DOCTYPE at the top (I think XHTML DTD defines nbsp)..

Arne

Roedy Green · Dec 31, 2012

The entity "nbsp" was referenced, but not declared.

XML supports just a tiny handful of entities and   is not one of
them. You are expected to use UTF-8 encodings or formally declare the
meaning of your entities in a DTD.

see http://mindprod.com/jgloss/xml.html#AWKWARD

Stanimir Stamenkov · Jan 1, 2013

Sun, 30 Dec 2012 11:30:24 -0800 (PST), /John L./:

I'm pre-processing a file in an attempt to use the subject method, and receive the following error:

[Fatal Error] EXTRACT.TMP:51:23: The entity "nbsp" was referenced, but not declared.
[...]
What is the required declaration syntax for   to allow the file to be parsed?

As Arne Vajhøj points in another reply, there should be an XHTML
DOCTYPE declaration at the beginning of the document. Browsers
usually don't have problem processing XHTML containing entity
references from the XHTML DTD, even without DOCTYPE declaration,
because either:

1. The document is served as text/html, which is not processed as
XML at all, or;

2. Browsers have and refer to the XHTML DTD locally and are
automatically associating it automatically based on content-type:
application/xhtml+xml, or xmlns="http://www.w3.org/1999/xhtml" on
the root html element.

If the document you're trying to parse is at your control, you could:

1. Add the XHTML DOCTYPE declaration manually:

<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

or even:

<!DOCTYPE html
SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

You may still want to supply EntityResolver [1] to serve this
DTD from a local resource;

2. Add a DOCTYPE with a local subset containing just the necessary
entity declarations, like:

<!DOCTYPE html [
<!ENTITY nbsp " ">
]>

If you're parsing documents which don't have DOCTYPE declaration and
are not in your control, you may supply EntityResolver2
implementation which defines additional interface for just that purpose:

http://docs.oracle.com/javase/6/doc...nalSubset(java.lang.String, java.lang.String)

[1]
http://docs.oracle.com/javase/6/doc...setEntityResolver(org.xml.sax.EntityResolver)

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Problem w/ DocumentBuilder parse method

John L.

Arne Vajhøj

Roedy Green

Stanimir Stamenkov

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