Showing DataFrame generates characters that cannot be displayed in console on windows

[mmagnuski]

An example below:

My versioninfo():

Julia Version 0.4.5
Commit 2ac304d (2016-03-18 00:58 UTC)
Platform Info:
  System: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Xeon(R) CPU E3-1226 v3 @ 3.30GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.3

[nalimilan]

Ah, that's annoying. It's unfortunate that we cannot use these Unicode characters without breaking display in the Windows console. Which Windows version is that?

I guess we have no choice but reverting this until we ship Julia with a better console.

Cc: @gdkrmr

[nalimilan]

Good news, Wikipedia made me realize the thin lines were supported, only the thick ones are a problem for Windows. Sounds reasonable to use thin lines for now.

[mmagnuski]

Just btw - these characters generally seem to be wider and therefore the dataframe display is a bit weird (the row separating column names and values is too long). Does it display nicely on non-windows computers or is that intentional?

[femtotrader]

Here is how a DataFrame appears under OS X (10.10.5)

That's not perfectly aligned

[KristofferC]

Looks like a constant offset though.

[mmagnuski]

On Windows it's much worse. I'm on my phone, but once I get to the computer I will post a screenshot.

[mmagnuski]

But see examples here.

[nalimilan]

Sorry, but we can't do anything about it, that's most likely a console issue. Is the new (thin) character better?

[mmagnuski]

The thin character works great, thanks! 😄
BTW, you can notice in the GitHub diff (on Chrome/Windows), that the character width seems to be different:

[nalimilan]

Good to know! You can't really trust what is shown on GitHub since it will depend on the exact font used. It's surprising that the widths differ, since AFAICT this is supposed to be a fixed-width font...

[mmagnuski]

Oh yes, the point was just to show that at least in some fixed-width fonts this character has different width. Looks like a bug in Fonts.jl 😉