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https://issues.apache.org/jira/browse/FOP-2044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13875614#comment-13875614
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Lennart Johansson commented on FOP-2044:
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Highly appreciate the actions.
Tips: Personally I would vote for an extra hardcoded break as a "last effort"
if nothing else helps, to ensure that text in a "table cell" NEVER overflows
into another cell, destroying other texts, due to hyphenation problems.
Actually I have also seen that XEP tries another type of last-effort solution,
to decrease the space-between-characters on the troublesome line causing
horizontally dense text, rather than overflowing a table-cell. If the last
effort is successful, use an INFO: instead of a WARNING message.
Still it might be OK for "text-that-could-not-be-broken" to "slightly" overflow
the text area into the page margin of a PDF-page (at least as long as it does
not reach outside the page edge and disappears) - it is only in table cells
that an overflow can destroys "other text".
However, maybe it is difficult for the FOP hyphenation code to know, if it is
in a table cell or somewhere else, especially if if needs to consider also
right-to-left text direction or similar?
Best Regards / Lennart
> [PATCH] Hyphenation of Uppercase Words, Combined with Underlines
> ----------------------------------------------------------------
>
> Key: FOP-2044
> URL: https://issues.apache.org/jira/browse/FOP-2044
> Project: Fop
> Issue Type: Improvement
> Components: general
> Affects Versions: 1.0
> Environment: Operating System: All
> Platform: All
> Reporter: Thomas Schraitle
> Assignee: Robert Meyer
> Fix For: trunk
>
> Attachments: fop-trunk-jan02-2014-test-fop-2044.fo,
> fop-trunk-jan02-2014.log, fop-trunk-jan92-2914-test-fop-2044.pdf, output.pdf,
> patch.diff, patch2.diff, uppercase-hyphen.fo, uppercase-hyphen.pdf
>
>
> Consider the attached FO file which combines words of lowercase and uppercase
> letters.
> As it is expected, the word "expected" is hyphenated correctly (example 2).
> Also the uppercase "SUCCESS". Even combined with underlines before and after
> the word (see example 4 and 5).
> However, if there is another word (like OCF_SUCCESS) the word isn't
> hyphenated at all anymore. I don't know if this is an expected behaviour or
> an issue in the hyphenation patterns. Interestingly, XEP from RenderX
> hyphenates it as "OCF_SUC-CESS". As far as I know, they use also the TeX
> hyphenation patterns as FOP.
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