How can I make an ICU data file with information for emojis only

screwnut 0
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I'm trying to pare down the libicudata.a file to the bare minimum that would still allow me to be able to test the following:

u_stringHasBinaryProperty(icu::UnicodeString::fromUTF8("").getBuffer(), -1, UProperty::UCHAR_RGI_EMOJI);

As per the instructions found here, I crafted the following file file and used it accordingly when configuring ICU's build.

{
  "strategy": "additive",
  "resourceFilters": [
    {
      "categories": [
        "misc"
      ],
      "files": {
        "includelist": [
          "emoji-sequences",
          "emoji-zwj-sequences"
        ]
      },
      "rules": []
    }
  ]
}

I did end up with a (much) smaller file (17kb) but it's obviously not working. M code compiles, links and runs but fails the test.

icu c
1 Answers

The good folks at icu-support@lists.sourceforge.net helped me out. The information was (temporarily) missing from their documentation. The following filter is what I was looking for:

{
  "strategy": "additive",
  "featureFilters": {
    "uemoji": "include"
  }
}
screwnut0
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