This reply goes to every one who has offered their help. I just want to say thank you. I have tried out LO on Ubuntu 12.04 and on Windows 7 in a VM, and these issues are simply almost gone on the Linux platform but remain the same on the virtual Windows.
I will briefly answer all my questions in the following, with a short summary. Environment: Ubuntu 12.04 64bit in VMWare, clean install; LibreOffice 4.1.4.2, deb package; extra fonts copied from Windows to support CJK chars in plane 2 (though the AR UL font also supports this), Tibetan script (using Microsoft Himalaya), Burmese (not sure if Ubuntu has a supporting font so just copied one), Gothic (using Code2000 fonts or Segoe UI Symbol) and more signs (using Segoe UI Symbol). ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > > 1. no unicode code point entry field in the dialog > > This is UNNECESSARY for Ubuntu/Linux because I have learned it has > built-in support for direct keyboard input of unicode characters without > limitation found in Windows (that you can only enter a code point lower > than U+10000 using keyboard direct input). ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 2. wrong detection of unicode ranges > > This is NOT observed in LO on Ubuntu. All fonts are properly detected of > their supported unicode ranges. And yes, LO follows the Unicode Standard > in this. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 3. limited support for fonts with non-zero plane glyphs > > This is NOT observed in LO on Ubuntu. Full range support for these fonts, > including those of which LO don't show their non-zero plane glyphs in > Windows. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 4. no built-in mechanism to produce glyphs from typed code points > > This is UNNECESSARY for Ubuntu/Linux. See issue 1. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 5. unstable detection of unicode ranges: weird behaviors in the Special > Characters dialog > > As of this post is composed, I haven't experienced any such behavior. > Seeing that the unicode ranges are also correctly detected and fully > supported here, I am confident this won't happen in Ubuntu/Linux. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 6. broken bi-di display (on same line ) in mixed-script document > > This is NOT observed in LO on Ubuntu if you copy text from a web browser > or type in text. However, if you try to open an HTML page straight from > LO, which I do so only for testing, the display do get screwed up. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 7. Broken glyph display in mixed-script document > > This is NOT observed in LO on Ubuntu if you assign a proper language to > the text. If you don't, the glyphs may show up as blobs, but once you set > it right, the glyphs are shown proper. Try it with Tibetan and Gothic. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 8. problematic character spacing > > This is NOT observed in LO on Ubuntu if you assign a proper language to > the text. If you don't, the glyphs may display errneously, but once you > set it right, the glyphs are shown proper. Try it with Thai. ♪͡♪♪͡♪Neil Ren♪͡♪♪͡♪ wrote > 9. wrong font information for mixed language documents > > There is ongoing discussion of the issue of automatic font selection, but > at least you don't make your glyph go wrong by using a wrong font. Verdict: Unicode support of LO is much better on Ubuntu/Linux than on Windows, speaking of non-zero plane code points and complex scripts. This is possibly due to originality of LO as a Linux application later ported to Windows platform, and also due to Windows' running parallel in Unicode and ANSI modes, the latter for backward compatibility. I'll perhaps try LO out on a Windows 8.1 system in a VM if possible, and if I do that I'll continue to update this post. ----- "雷聲 靐䨻": if you can see four Chinese characters instead of blobs or question marks than your browser/OS has a good support for Unicode and CJK characters! (P.S. the four chracters put together means "loud thunder") -- View this message in context: http://nabble.documentfoundation.org/Limited-Unicode-Support-in-LibreOffice-4-1-4-2-Character-insertion-non-zero-SMP-SIP-planes-and-multi-tp4094290p4094686.html Sent from the Users mailing list archive at Nabble.com. -- To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
