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From "Brian Carrier (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (PDFBOX-433) parse Unicode glyph names
Date Tue, 24 Feb 2009 16:48:02 GMT

     [ https://issues.apache.org/jira/browse/PDFBOX-433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brian Carrier resolved PDFBOX-433.
----------------------------------

    Resolution: Fixed

Confirmed that patch worked using file supplied.  

Sending        Encoding.java
Transmitting file data .
Committed revision 747425.


> parse Unicode glyph names
> -------------------------
>
>                 Key: PDFBOX-433
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-433
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Parsing, Text extraction
>    Affects Versions: 0.8.0-incubator
>            Reporter: Timo Boehme
>            Priority: Minor
>
> Adobe has specified (http://www.adobe.com/devnet/opentype/archives/glyph.html) how glyph
names should be constructed to easily convert them (to Unicode). What is currently missing
in PDFBox is the handling of suffixes (NAME.SUFFIX) and Unicode names (uniXXXX). I have therefore
attached an updated method getCharacter( COSName name ) for class org.apache.pdfbox.encoding.Encoding.
> It first strips off suffix and tests later on for names starting with 'uni'.
> Timo
>     /**
>      * This will get the character from the name.
>      *
>      * @param name The name of the character.
>      *
>      * @return The printable character for the code.
>      */
>     public static String getCharacter( COSName name )
>     {
>     	  COSName baseName = name;
>     	  String  nameStr  = baseName.getName();
>     	  // test if we have a suffix and if so remove it
>     	  if ( nameStr.indexOf('.') > 0 ) {
>     	  	nameStr  = nameStr.substring( 0, nameStr.indexOf('.') );
>     	  	baseName = COSName.getPDFName( nameStr ); 
>     	  }
>     	  
>         String character = (String)NAME_TO_CHARACTER.get( baseName );
>         if( character == null )
>         {
>         	  // test for Unicode name
>         	  // (uniXXXX - XXXX must be a multiple of four;
>         	  //  each representing a hexadecimal Unicode code point) 
>         	  if ( nameStr.startsWith( "uni" ) )
>         	  {
>         	  	  StringBuffer uniStr = new StringBuffer();
>         	  	  
>         	  		for ( int chPos = 3; chPos + 4 <= nameStr.length(); chPos += 4 ) {
>         	  			try {
>         	  				
> 	        	  			int characterCode = Integer.parseInt( nameStr.substring( chPos, chPos
+ 4), 16 );
> 	        	  			
> 	        	  			if ( ( characterCode > 0xD7FF ) && ( characterCode < 0xE000
) )
> 	        	  				Logger.getLogger(Encoding.class.getName()).log( Level.WARNING,
> 	        	  																												"Unicode character name with not allowed code
area: " +
> 	        	  																												nameStr );
> 	        	  			else
> 	        	  				uniStr.append( (char) characterCode );
> 	        	  			
>         	  			} catch (NumberFormatException nfe) {
>         	  				Logger.getLogger(Encoding.class.getName()).log( Level.WARNING,
> 												"Not a number in Unicode character name: " +
> 												nameStr );
>         	  			}
>         	  		}
>         	  		character = uniStr.toString();
>         	  }
>         	  else
>         	  	  character = nameStr;
>         }
>         return character;
>     }

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