script-metadata

http://unicode.org/cldr/trac/ticket/3871

Here is a proposed structure for supplemental data

<script>

 <scriptData type=”Latn” lines=”top-to-bottom” characters=”left-to-right” spaces=”true” shaping=”minimal” usage=”recommended” originRegion=”150” sample=”A”>

lines/characters =

spaces =

shaping = (in normal usage)

usage = value in UAX31

originRegion = continent or subcontinent where script originated. Following the Unicode book / charts (see the spreadsheet).

sample = character with distinctive glyph that can be used to represent the script in icons (eg missing glyph)

The orientation field in a locale would only be used for overriding.