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Marco asked:

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*> What is the intended rendering of U+2044 (FRACTION SLASH) in Unicode?
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*>
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*> And what changes (if any) should it cause on sorrounding digits? (e.g.:
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*> should the digits preceding the slash be superscript and the ones following
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*> it subscript?)
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*>
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*> I know that, because "Unicode encodes characters not glyphs", questions like
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*> "how should be that character be displayed?" are always a problem, so I
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*> don't necessarily want *the* answer, but I'll be happy also to receive
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*> *some* subjective answers.
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Tim Partridge provided some detailed rendering implementation guidelines in

his answer.

The Unicode Standard's take on it is on page 152 of the book:

"The standard form of a fraction built using the fraction slash is

defined as follows: Any sequence of one or more decimal digits, followed

by the fraction slash, followed by any sequence of one or more decimal

digits. Such a fraction should be displayed as a unit, such as 3/4

[[small 3 beside slash beside small 4]] or as 3/4 [[3 over horizontal

over 4]]. The precise choice of display can depend upon additional

formatting information.

"If the displaying software is incapable of mapping the fraction to

a unit, then it can also be displayed as a simple linear sequence as

a fallback (for example, 3/4). If the fraction is to be separated

from a previous number, then a space can be used, choosing the appropriate

width (normal, thin, zero width, and so on). For example, 1 +

ZERO-WIDTH SPACE + 3 + FRACTION SLASH + 4 is displayed as 13/4 [[fullsize

1 followed by 3/4 as a vulgar fraction]]."

--Ken

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