Update to Unicode 13.0.0

[dscorbett]

I used the current master branch of packTab except that I had to comment out lines 135 to 137 of __init__.py.

[bobh0303]

Is accepting this PR what is needed to get the ball rolling on shaping for new chars in Unicode 13? If so, what needs to happen to move this forward?

[ebraminio]

Waiting for Behdad to comment then guessing will be very good to release afterward.

[bobh0303]

Assuming you mean @behdad .

[behdad]

I used the current master branch of packTab except that I had to comment out lines 135 to 137 of init.py.

I still hope to review this work soon. But that condition is warning of something going wrong and should not be blindly ignored.

[dscorbett]

The problem is that packTab checks any(v < 0 for v in values) but v could be a string like '0x003Bu'. Changing it to any(not isinstance(v, str) and v < 0 for v in values) works around the problem. The generated hb-ucd-table.hh is unchanged.

[behdad]

I'll try to get to this soooon. Thanks.

[LornaSIL]

@behdad Is there any chance this will get accepted soon? That would really be helpful.

[behdad]

The problem is that packTab checks any(v < 0 for v in values) but v could be a string like '0x003Bu'. Changing it to any(not isinstance(v, str) and v < 0 for v in values) works around the problem. The generated hb-ucd-table.hh is unchanged.

Thanks. That was unintended debugging leftover! Removed it.

In the future would be easier to review if you make multiple commits, one per change... eg:

• [Unicode 13] Add new hb_script_t values
• [Unicode 13] Update Arabic table
  ...

Thanks again!!