Re: French group separators

[Michael Everson]

From Robert Bringhurst's Elements of Typographic Style, pp. 28-20:

"Use a single word space between sentences. In the nineteenth 
century, which was a dark and inflationary age in typography and type 
design, many compositors were encouraged to stuff extra space between 
sentences. Generations of twentieth-century typists were then taught 
to do the same, by hitting the spacebar twice after every period. 
Your typing as well as your typesetting will benefit from unlearning 
this quaint Victorian habit. As a general rule, no more than a single 
space is required after a period, or any other mark of punctuation. 
Larger spaces (e.g., en spaces) are *themselves* punctuation.

"The rule is usually altered, however, when setting classical Latin 
and Greek, romanized Sanskrit, phonetics, or other kinds of texts in 
which sentences begin with lowercase letters. In the absence of a 
capital, a full *en space* (M/2) between sentences will generally be 
welcome."
--
Michael Everson * * Everson Typography *  * http://www.evertype.com