* Nobody:
On Sat, 06 Feb 2010 21:31:52 +0100, Alf P. Steinbach wrote:
The size-8 tabs look really bad in an editor configured with tab size 4,
as is common in Windows. I'm concluding that the CPython programmers
configure their Visual Studio's to *nix convention.
8-column tabs aren't a "*nix convention"; that's been the norm since
the mechanical typewriter.
Historically, software and hardware which knows what a "tab" could be
split into two categories:
1. Tab stops are fixed at 8-column intervals.
2. Tab stops default to 8-column intervals but can be changed.
Recently, a third category has appeared (tab stops default to something
other than 8 columns).
I'm sorry, but you have your history wrong.
Tab stops originated with mechanical typewriters, and then printers. They could
be just about anything.
Tab stops have never been universally 8 columns -- so unless by "recent"
introduction of other sizes you mean 1958 or thereabouts, you're completely off
track.
The most common example is Visual Studio. No
surprise there: Microsoft has a track record of introducing slight
incompatibilities into established standards. Just enough to inconvenience
anyone using competing products, but not so much that anyone operating
in a context where Microsoft isn't dominant has to abandon Microsoft's
product.
Given that:
1. 8-column tabs have been the standard for longer than most of us
have been alive, let alone programming, and
I'm sorry, that's incorrect, it's never been standard.
2. even if a particular text editor supports some other value, there is no
way to communicate this fact to anything else which might read the code,
If you add the word "portable" and remove the word "other" and replace
"supports" with "is configured to use" then that's sort of technically correct.
But I agree with the general sense. And I think most everyone does. A common
convention would have been nice. But we don't have that.
the logical conclusion is that using anything other than 8 columns lies
somewhere between "silly" and "assuming the world revolves around you".
«the logical conclusion is that assuming 8 column tab stops lies somewhere
between "silly" and "assuming the world revolves around you"» :-)
In particular, consider Windows programming.
Cheers & hth.,
- Alf
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