Wednesday, January 26, 2011

'list', :list, and 'listchars'

From looking at :list, it seems like it's basically supposed to print
the line as it would show with 'list' turned on. However, I have a few
questions:

:help :list says it will use '^' for unprintable characters, and
additionally says "This can be changed with the 'listchars' option.
However, there does not seem to be any 'listchars' option controlling
the display of unprintable characters. What does setting 'list' do for
unprintable characters? Anything?

:help :list only mentions EOL and unprintable behavior, but
experimentation shows that "trail", "extends", and "tab" also apply
from 'listchars'. "precedes" and "extends" certainly would not make
sense in this context, but what about "nbsp" and "conceal"?
Experimentation shows that these two options do not have any effect.
Should they? I could understand "conceal" having no effect, but I
would certainly expect "nbsp" to apply, since "trail", etc. all apply.

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