[jira] [Commented] (FOP-2522) [PATCH] Soft hyphens in front of some characters are transformed to hyphen-minus

    [ https://issues.apache.org/jira/browse/FOP-2522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18032140#comment-18032140 ] 

Björn Kautler commented on FOP-2522:
------------------------------------

My patch seems also to fix the cases from the issue you linked.

left without my patch, right with my patch

!image-2025-10-22-17-08-46-819.png!

> [PATCH] Soft hyphens in front of some characters are transformed to hyphen-minus
> --------------------------------------------------------------------------------
>
>                 Key: FOP-2522
>                 URL: https://issues.apache.org/jira/browse/FOP-2522
>             Project: FOP
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Björn Kautler
>            Priority: Major
>         Attachments: image-2024-01-17-14-48-50-945.png, image-2024-01-17-14-49-08-309.png, image-2025-10-22-17-08-46-819.png, issue-2522.fo, issue-2522.patch
>
>
> If you have a verbatim block like {{<programlisting>}} in DocBook, the DocBook XSL stylesheets insert many soft hypens (http://decodeunicode.org/u+00AD) into the content to show where the FO-processor may insert linebreaks. By default after spaces and non-breakable spaces, but configurable also after arbitrary other characters.
> Unfortunately it seems FOP does not handle the soft hyphens correctly, depending on the character that follows it. Soft Hyphens in front of some characters are transformed to hyphen-minus, no matter what hyphenation-characters is configured and even if the occurence is within a line and not at line break.
> I've observed this behaviour with soft hyphens in front of apostrophe (http://decodeunicode.org/u+0027), quotation mark (http://decodeunicode.org/u+0022), hyphen-minus (http://decodeunicode.org/u+002D) and full stop (http://decodeunicode.org/u+002E)



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