Created attachment 74360 [details] Test file with plain fi replacement, and without it using ZWNJ, ZWJ and ZWS German typography could use zero width non-joiner (ZWNJ) characters to fix the automatic ligature handling of OpenType or Graphite fonts, see http://en.wikipedia.org/wiki/Zero-width_non-joiner. LibreOffice has limited support for this feature, also there are problems with text search and spell checking, too, see the attached test file and screenshot. (It uses Linux Libertine G with automatic ligature replacement.) Workaround for ligature handling: – try zero-width space (U-200B) instead of ZWNJ or – use the font specific ligature settings (eg. "Linux Libertine G:liga=0" special font name) for the full word (or word part to keep ligatures in the other word parts) Workaround for spell checking: Specify ZWNJ with IGNORE feature of Hunspell in the affix file (it works with UTF-8 encoded Hunspell dictionaries): IGNORE <U-200C> where <U-200C> is the UTF-8 encoded U-200C ZWNJ Plans: LibreOffice/Hunspell: – remove ZWNJ automatically for 8-bit encoded dictionaries – add IGNORE ZWNJ to UTF-8 encoded dictionaries (English, Hungarian) Linux Libertine G, Biolinum G: – add/fix ZWNJ letter to avoid bad kerning (see screenshot) – use short f for f + ZWNJ – maybe it is better to remove the default ligature replacement for German (it is possible to set in the Graphite font)
Laszlo Nemeth committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=98029f1625663609d670f79eea61f7547bfc8123 fdo#60427, fdo#59337: spell words with ZWNJ/ZWJ, f-lig. (only 8-bit dic.) The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Created attachment 74409 [details] Test file "Tests" words contain ZWNJ and ZWJ between T and e.
Created attachment 74410 [details] Test document with Linux Libertine G Graphite font
Laszlo: with http://cgit.freedesktop.org/libreoffice/core/commit/?id=98029f1625663609d670f79eea61f7547bfc8123, is it fixed or does it need more work?
(In reply to comment #4) > Laszlo: with > http://cgit.freedesktop.org/libreoffice/core/commit/ > ?id=98029f1625663609d670f79eea61f7547bfc8123, is it fixed or does it need > more work? Julien: The most annoying problem, spell checking with ZWNJ was fixed, so I close the issue (but I have to update the Linux Libertine G, too). Thanks for your comment.