package edu.northwestern.at.utils.corpuslinguistics.inputter;
/* Please see the license information at the end of this file. */
import java.text.*;
import java.util.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.filter.*;
import org.jdom.output.*;
import edu.northwestern.at.utils.*;
import edu.northwestern.at.utils.xml.*;
/** Fixes <orig> element and surrounding elements.
*
* <p>
* <orig> tags are used in Wright archive documents to
* mark words split across a page break. A typical page break
* appears as follows:
* </p>
*
* <pre>
* <orig reg="larboard" TEIform="orig">lar-</orig>
* <pb TEIform="pb"/> board hand,
* </pre>
*
* <p>
* The "reg=" attribute of the <orig> tag provides the
* original unsplit spelling of the word which is split across the
* page boundary. The whitespace following the </orig> and
* preceding the <pb>, as well as the whitespace following
* the </pb>, causes MorphAdorner to process the split word
* incorrectly as multiple words instead of a single word.
* </p>
*
* <p>
* OrigFixer modifies the XML for <orig> tags as follows.
* </p>
*
* <ul>
* <li>OrigFixer removes the whitespace following the closing </orig>
* tag up to the start of the subsequent <pb> .
* </li>
* <li>OrigFixer removes the leading whitespace from the text
* following the closing </pb> which follows the </orig>.
* </li>
* <li>OrigFixer replaces the trailing "-" in the word enclosed by
* the <orig> tag with a special user-defined Unicode
* character (currently 0xE502) when there is no matching "-" in the
* "reg=" attribute of the <orig> tag. This allows the
* MorphAdorner word tokenizers to distinguish the overloaded
* use of the trailing hyphen as a word continuation character
* from its use as both a continuation character and a character
* in the original spelling.
* </li>
* </ul>
*
* <p>
* For example, OrigFixer modifies the sample text above to read:
* </p>
*
* <pre>
* <orig reg="larboard" TEIform="orig">lar\ue502</orig><pb TEIform="pb"/>board hand,
* </pre>
*
* <p>
* These modifications allow MorphAdorner to process the split word
* correctly. The MorphAdorner tokenizers recognize the special substitute
* hyphen character, which is restored to a plain hyphen character by the
* XML output writers.
* </p>
*/
public class OrigFixer
{
/** Fix <orig> elements in a DOM document.
*
* @param document Document containing <orig> elements to fix.
*/
public static void fixOrigs( Document document )
{
// Create filter for <orig> elements.
Filter filter = new OrigFilter();
// Create processor for <orig> elements.
ElementProcessor processor = new OrigProcessor();
// Process <orig> elements.
JDOMUtils.applyElementFilter( document , filter , processor );
}
/** Allow overrides but no instantiation.
*/
protected OrigFixer()
{
}
/** JDOM element filter which selects <orig> elements. */
public static class OrigFilter implements Filter
{
public boolean matches( java.lang.Object obj )
{
return
( obj instanceof Element ) &&
( ((Element)obj).getName().equalsIgnoreCase( "orig" ) );
}
}
/** JDOM element processor which fixes <orig> elements. */
public static class OrigProcessor implements ElementProcessor
{
/** Fix <orig> elements in JDOM element.
*
* @param document The document being processed.
* @param element The JDOM element to process.
*/
public void processElement( Document document , Element element )
{
String reg = element.getAttributeValue( "reg" );
String text = element.getText();
if ( text.endsWith( "-" ) )
{
if ( !reg.startsWith( text ) )
{
text = text.substring( 0 , text.length() - 1 );
text = text + CharUtils.CHAR_FAKE_SOFT_HYPHEN_STRING;
element.setText( text );
}
}
Parent parent = element.getParent();
if ( parent != null )
{
int index = parent.indexOf( element );
Content sibling = parent.getContent( index + 1 );
if ( sibling != null )
{
if ( sibling instanceof Text )
{
Text textSibling = (Text)sibling;
text = textSibling.getText();
if ( text.length() > 0 )
{
text = text.trim();
textSibling.setText( text );
}
}
}
sibling = parent.getContent( index + 2 );
if ( sibling != null )
{
if ( sibling instanceof Element )
{
Element pbSibling = (Element)sibling;
if ( pbSibling.getName().equalsIgnoreCase( "pb" ) )
{
sibling = parent.getContent( index + 3 );
if ( sibling != null )
{
if ( sibling instanceof Text )
{
Text textSibling = (Text)sibling;
text = textSibling.getText();
if ( text.length() > 0 )
{
text = text.substring( 1 );
textSibling.setText( text );
}
}
}
}
}
}
}
}
}
}
/*
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Northwestern University
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files (the "Software"), to deal with the Software without
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Software is furnished to do so, subject to the following
conditions:
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notice, this list of conditions and the following disclaimers.
* Redistributions in binary form must reproduce the above
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disclaimers in the documentation and/or other materials provided
with the distribution.
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*/