[
https://issues.apache.org/jira/browse/PDFBOX-433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Timo Boehme updated PDFBOX-433:
-------------------------------
Description:
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;
}
was:
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
> 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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