[jira] [Closed] (PDFBOX-2663) CMap handling bug

["John Hewson (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-2663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Hewson closed PDFBOX-2663.
-------------------------------
       Resolution: Won't Fix
    Fix Version/s:     (was: 1.8.8)

CID fonts are broken in various other ways in 1.8, so there's not a lot of point fixing this as it works in 2.0.

> 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
>   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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