"grc" language (Ancient Greek) probably should be mapped to Greek script

[Matt Falkenhagen]

It looks like ICU doesn't assign a script for "grc" language (Ancient Greek). For example:

  char maximizedLocale[ULOC_FULLNAME_CAPACITY];
  uloc_addLikelySubtags("grc", maximizedLocale, sizeof(maximizedLocale), &status);
  // now maximizedLocale is "grc"

  char script[ULOC_SCRIPT_CAPACITY];
  uloc_getScript(maximizedLocale, script, sizeof(script), &status);
  // returns 0, and now script is the empty string. status is success.

Since "grc" is not mapped to a script, WebKit will use the font for the Common script, which might not be appropriate, especially for CJK fonts (see bug 88545).

We should check whether it's intentional that ICU/CLDR doesn't assign a script to "grc". Curiously, in icu/source/data/misc/supplementalData.txt, there is:
        grc{
            secondary{
                scripts{
                    "Cprt",
                    "Grek",
                    "Linb",
                }
            }
        }
So it's possible ICU can return these scripts somehow (though we'd then have to choose between them).

Wikipedia uses lang="grc" in articles like <http://en.wikipedia.org/wiki/Pankration>

FWIW, Firefox has the same behavior: lang="grc" content isn't rendered using their Greek font setting

[Alexey Proskuryakov]

Is a modern Greek font optimal for rendering Ancient Greek?