[TxMt] Re: Dynamic scopes

[Christopher Creutzig]

Allan Odgaard wrote:

> Is your proposal that TextMate parse your language in the background,

 It does that already.  At least, I can ask it to, using scopes and
indentation rules.  Obviously, I have no idea how the internal
structures of TM work, so my suggestions may be extremely strange, but I
could imagine something like

{
  begin = '\bproc\s*\(';
  end = 'end_proc';
  {
     match = '^\s*local\s+(?:(\w+),\s*)*(\w+)\s*;';
     captures = {
       1 = { name = 'variable.other.foo'; };
       2 = { name = 'variable.other.foo'; };
     }
  }
  {
     match = '(\b\w+\b)';
     captures = {
       1 = { inheritName = 'variable.other.foo'; };
     }
  }
  ...
}

(A real world pattern would probably look a bit more complicated.)

 I'm not sure if the above syntax is all that desirable, but in my
opinion the effect certainly is, namely, to *locally* change the scoping
rules (probably best limited to what scope is actually assigned) based
on the text edited.  If a ruby method uses a variable only once and that
variable is not known from an outer block, it would-be-nice[tm] to have
it stick out visually, since it is likely a typo.

> While dynamic scopes could allow for some third party plug-in to  
> provide scope names, I am unlikely to venture into the field of  
> incremental parsers for the dozen of languages supported by TextMate ;)

 I'd certainly cry out loudly if you announced such plans. ;)


Best regards,
	Christopher