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https://issues.apache.org/jira/browse/PDFBOX-2663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306636#comment-14306636
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John Hewson edited comment on PDFBOX-2663 at 2/5/15 4:59 AM:
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Do you have a PDF file which suffers from this problem? If so can you attach it
to this issue. Also have you thought about using the 2.0 trunk. The code there
has been significantly revised and does not appear to suffer from this problem.
was (Author: jahewson):
Do you have a PDF file which suffers from this problem? If so can you attach it
to this issue.
Also have you thought about using the 2.0 trunk. The code there has been
significantly revised.
> CMap handling bug
> -----------------
>
> Key: PDFBOX-2663
> URL: https://issues.apache.org/jira/browse/PDFBOX-2663
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 1.8.8
> Environment: Windows 7
> Reporter: Matthew GAO
> Assignee: John Hewson
> Fix For: 1.8.8
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Some CMap includes another CMap using the "usecmap" command in the CMap
> resource file. For example, "ETenms-B5-H" includes "ETen-B5-H" CMap. The
> command in resource file is "/ETen-B5-H usecmap"
> The CMapParser does handle this case. Please find the coding below:
> {code}
> if (op.op.equals(USECMAP))
> {
> LiteralName useCmapName = (LiteralName) previousToken;
> InputStream useStream = ResourceLoader.loadResource(resourceRoot +
> useCmapName.name);
> if (useStream == null)
> {
> throw new IOException("Error: Could not find referenced cmap stream "
> + useCmapName.name);
> }
> CMap useCMap = parse(resourceRoot, useStream);
> result.useCmap(useCMap);
> }
> But the useCmap method of CMap class doesn't copy the cidRanges list from the
> child CMap. Please find the coding below:
> public void useCmap( CMap cmap )
> {
> this.codeSpaceRanges.addAll( cmap.codeSpaceRanges );
> this.singleByteMappings.putAll( cmap.singleByteMappings );
> this.doubleByteMappings.putAll( cmap.doubleByteMappings );
> }
> {code}
> Without the cidRanges from the included CMap, PDFBox doesn't know a text can
> be solved by the CMap and return "?" finally.
> Suggest to add the following coding to useCmap method of CMap class to solve
> the problem.
> this.cidRanges.addAll( cmap.cidRanges);
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