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  1. FOP
  2. FOP-1969

Support for unicode Surrogate pairs

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    Details

    • Type: Improvement
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: 2.5
    • Fix Version/s: 2.3
    • Component/s: unqualified
    • Labels:
      None
    • Environment:
      Operating System: All
      Platform: All
    • External issue ID:
      51843

      Description

      unicode codepoints outside of the BMP (base multilingual plane), i.e., whose scalar value is greater than 0xFFFF (65535), are coded as UTF-16 surrogate pairs in Java strings, which pair should be treated as a single codepoint for the purpose of mapping to a glyph in a font (that supports extra-BMP mappings);

      at present, FOP does not correctly handle this case in simple (non complex script) rendering paths;

      furthermore, though some support has been added to handle this in the complex script rendering path, it has not yet been tested, so is not necessarily working there either;

       

      fop test.fo -c fop.xconf out.pdf

      Glyphs should be rendered

        Attachments

        1. testing.xsl
          0.9 kB
          ngkit
        2. testing.pdf
          5 kB
          ngkit
        3. testing.xml
          0.0 kB
          ngkit
        4. testing.fo
          0.8 kB
          ngkit
        5. testing.fo
          0.6 kB
          ngkit
        6. testing.pdf
          5 kB
          ngkit
        7. pcltest.zip
          0.7 kB
          Simon Steiner
        8. Urdu.zip
          2 kB
          Simon Steiner
        9. tiffttc.zip
          0.7 kB
          Simon Steiner
        10. single-byte.zip
          2 kB
          Simon Steiner
        11. fop.xconf
          0.7 kB
          Simon Steiner
        12. test.fo
          0.7 kB
          Simon Steiner
        13. AndroidEmoji.ttf
          438 kB
          Simon Steiner

          Issue Links

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              • Assignee:
                ssteiner Simon Steiner
                Reporter:
                gadams Glenn Adams
              • Votes:
                6 Vote for this issue
                Watchers:
                16 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: