[jira] [Commented] (FOP-1969) Support for unicode Surrogate pairs

["Kelly H Wilkerson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FOP-1969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16406548#comment-16406548 ] 

Kelly H Wilkerson commented on FOP-1969:
----------------------------------------

Excellent, thank you so much Simon!

> Support for unicode Surrogate pairs
> -----------------------------------
>
>                 Key: FOP-1969
>                 URL: https://issues.apache.org/jira/browse/FOP-1969
>             Project: FOP
>          Issue Type: Improvement
>          Components: unqualified
>    Affects Versions: trunk
>         Environment: Operating System: All
> Platform: All
>            Reporter: Glenn Adams
>            Assignee: simon steiner
>         Attachments: AndroidEmoji.ttf, Urdu.zip, fop.xconf, pcltest.zip, single-byte.zip, test.fo, testing.fo, testing.fo, testing.pdf, testing.pdf, testing.xml, testing.xsl, tiffttc.zip
>
>
> unicode codepoints outside of the BMP (base multilingual plane), i.e., whose scalar value is greater than 0xFFFF (65535), are coded as UTF-16 surrogate pairs in Java strings, which pair should be treated as a single codepoint for the purpose of mapping to a glyph in a font (that supports extra-BMP mappings);
> at present, FOP does not correctly handle this case in simple (non complex script) rendering paths;
> furthermore, though some support has been added to handle this in the complex script rendering path, it has not yet been tested, so is not necessarily working there either;
>  
> fop test.fo -c fop.xconf out.pdf
> Glyphs should be rendered



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