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SubjectRe: [PATCH 1/1] Fix typos in Documentation/filesystems/seq_file.txt
On Sun, 13 Apr 2008 23:45:47 +0100 Al Viro wrote:

> On Mon, Apr 14, 2008 at 02:25:05AM +0400, Dmitri Vorobiev wrote:
>
> > Actually, I was doubting whether the "2 spaces" thing was
> > intentional or not. The overwhelming majority of the sentences in
> > this document use only one space after a period, however, and this
> > made me decide that the "2 spaces" thing had not been deliberate
> > but just a typo.
> >
> > Are there any rules about using spaces after a period at the end
> > of a sentence?
>
> See Knuth (TeXbook) for the story on that...

I googled that but I don't see the history there.

AFAIK, 2 spaces at the end of sentences is a typewriter-ism, for easier
visual separation of sentences.
Probably (just guessing here) has to do with monospace fonts vs.
(not having) proportional ones there (usually).

---
~Randy
[Yes, I learned to type on a manual typewriter.]

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