[xep-support] Support of special types of spaces

[Broberg, Mats]

Carlos Villegas wrote:

> Nevertherless, high quality typesetting still requires 
> specific spaces in certain contexts that are impossible for 
> the formatter to determine reliably. For example, those 
> depending on semantics, I can't think of an example now but 
> I'm aware that there are cases when reading about typography 
> and TeX, for instance. In those cases, human intervention is 
> required, in this case in the form of XML tagging. That's why 
> we need support in the formatter to specify those spaces 
> using the same terms of traditional typography. That's the 
> reason they were included in Unicode after all. Notice also 
> that even if space between words is allowed to vary we still 
> need some spaces in some cases to remain fixed. For example 
> the space in "Fig. 1", a non-breakable space of a specific 
> width probably accounted for in high quality typography.

Exactly. The spaces are provided for in Unicode and they should be
processed properly and not ignored or converted in any way.

Best regards,
Mats Broberg
Technical Documentation Manager

www.flirthermography.com

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