> But is it possible to make some text in a buffer read-only but not for
> the whole buffer? I mean maybe we can "bind" a property to the string
> ( or text, or character ) , which can make the text read-only in a
> modifiable buffer. Or even finally, We can make the text not only a
> plain text, but text binding some properties set to different value to
> control the different aspects, such as highlighting, read-only, or
> even font. Maybe, "conceal" can also be one property of a text. :-)
Vim does not have this. User needs to maintain such information outside
the actual buffer and perhaps hook some behaviour-changing code to
CursorMovedI autocommand event.
As far as I know only Emacs has such text properties: arbitrary amount
of data can be attached to any character in a buffer. Some properties
are standardized. For example, text highlighting and invisible text
features have been implemented through text properties. There is also
read-only property which does what you described.
Text properties for Vim would be a great general solution for many
features but I'm sure some people here are already thinking that Vim was
not "designed" for that. So that justifies the non-existing feature. :-)
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