Optimize name column chopping with `wcwidth`

pyroscope / rtorrent-ps

:art: Extended rTorrent distribution with a fully customizable canvas and colors, other feature additions, and complete docs.

http://rtorrent-ps.readthedocs.io/

GNU General Public License v2.0

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Open pyroscope opened 6 years ago

pyroscope commented 6 years ago

Might need configure test for wcwidth (skip that if it compiles on Precise)
Add to canvas rendering code
- need to check how to easily decode UTF-8 sequences into code points
- do a pre-check for pure ASCII, then just use substr
Inserting spaces or bumping the column position might also be needed
Find an adequate test case that causes visual defects with the existing code

q3cpma commented 6 years ago

Oi, didn't see this. If you want a test, look at https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms for double width examples.

q3cpma commented 6 years ago

If you want, I made a simple tool doing the job (http://repo.or.cz/misc-tools.git/blob/HEAD:/mbcut.c). You could copy paste some of it.