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https://issues.apache.org/jira/browse/FOP-2638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15397270#comment-15397270
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Simone Rondelli edited comment on FOP-2638 at 7/28/16 8:48 AM:
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Currently ApacheFOP do not support non-BMP characters. I was able to spot this 
issue while I was adding support for non-BMP characters while fixing this 
issue:  FOP-1969 


was (Author: rondelli):
Currently ApacheFOP do not support non-BMP characters. I was able to spot this 
issue while I was adding support for non-BMP characters while fixing this issue.

> FOText.getScript() may prevent gsub/gpos application
> ----------------------------------------------------
>
>                 Key: FOP-2638
>                 URL: https://issues.apache.org/jira/browse/FOP-2638
>             Project: FOP
>          Issue Type: Bug
>          Components: fo/block, layout/unqualified
>    Affects Versions: trunk
>         Environment: Operating System: All
> Platform: All
>            Reporter: Simone Rondelli
>
> In {{GlyphMapping.processWordMapping}} the script of the text is retrieved 
> using {{String script = text.getScript()}}.
> If the script returned is not listed in the Font then  then gsub/gpos 
> features will be ignored even if applicable.
> h5. Example:
> The font [EmojiOne|https://github.com/eosrei/emojione-color-font] is a font 
> for Emoji and contains a Ligatures table for _latn_ script. Thsi is what 
> happen when FOText.getScript is called:
> * ๐Ÿ‡ฎ๐Ÿ‡น๐Ÿ‘จโ€๐Ÿ‘จโ€๐Ÿ‘ฆ  (Only emoji) -> script =  'zyyy'
> * test๐Ÿ‡ฎ๐Ÿ‡น๐Ÿ‘จโ€๐Ÿ‘จโ€๐Ÿ‘ฆ  (Latin + Emoji) -> script = 'auto'
> * ๅ…ˆ็งฆๅ…ฉๆผข๐Ÿ‡ฎ๐Ÿ‡น๐Ÿ‘จโ€๐Ÿ‘จโ€๐Ÿ‘ฆ  (Chinese + Emoji) -> script = 'auto'
> In all these cases ApacheFOP is not able to apply the ligature table.
> h5.Acceptance Criteria 
> Ensure ApacheFOP reads the gsub/gpos table even if the script recognized for 
> the text differs from the one defined in the font.



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