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Where 'S' is an optional folder suffix. Note that services registered in subfolders do not mix, and they do not mix with 'generic' services in the base MIMEtype folder (no subfolder suffix) either.  The most generic registrations reside in Editor/{S }. MIME service registrations are usually processed in the order enumerated by the Lookup by editor and other servicessubsystems. So if one defines a position attribute for a registration .instance file, that file is ordered accordingly in the enumeration.

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Generic services (in Editors/) typically do not have any position/ordering information.  Most languages are just indifferent to the order. Maybe it's not important for the function, or the  just do not define any order. I suppose that that the natural (declaration) order (textual order of appearance in the layer XML) is what the language implementation wantssatisfies the needs, especially if the registrations are written in the XML layer file. The This language's assumption may break once an extension is developed, with specific needs for ordering. The important thing to remember is that some or mime-specific folders define order, but some do not.

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