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  1. FOP
  2. FOP-2638

FOText.getScript() may prevent gsub/gpos application

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: trunk
    • Fix Version/s: None
    • Labels:
      None
    • Environment:
      Operating System: All
      Platform: All

      Description

      In GlyphMapping.processWordMapping the script of the text is retrieved using String script = text.getScript().

      If the script returned is not listed in the Font then then gsub/gpos features will be ignored even if applicable.

      Example:

      The font EmojiOne is a font for Emoji and contains a Ligatures table for latn script. Thsi is what happen when FOText.getScript is called:

      • ๐Ÿ‡ฎ๐Ÿ‡น๐Ÿ‘จโ€๐Ÿ‘จโ€๐Ÿ‘ฆ (Only emoji) -> script = 'zyyy'
      • test๐Ÿ‡ฎ๐Ÿ‡น๐Ÿ‘จโ€๐Ÿ‘จโ€๐Ÿ‘ฆ (Latin + Emoji) -> script = 'auto'
      • ๅ…ˆ็งฆๅ…ฉๆผข๐Ÿ‡ฎ๐Ÿ‡น๐Ÿ‘จโ€๐Ÿ‘จโ€๐Ÿ‘ฆ (Chinese + Emoji) -> script = 'auto'

      In all these cases ApacheFOP is not able to apply the ligature table.

      Acceptance Criteria

      Ensure ApacheFOP reads the gsub/gpos table even if the script recognized for the text differs from the one defined in the font.

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              • Assignee:
                Unassigned
                Reporter:
                rondelli Simone Rondelli
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                Dates

                • Created:
                  Updated: