Function handle accessor not colored after 4 whitespaces, cannot be separated from anonymous function in case of line continuations

[watermarkhu]

There can be an arbitrary number of whitespaces after the function handle.

But in the tmLanguage there is a limit on 4 whitespace characters. Also \s includes newlines, which is not allowed.

MATLAB-Language-grammar/Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage

Line 2491 in 4f1c0c8

<string>(?&lt;!\w)@(?=\s{,4}\w)</string>

[watermarkhu]

In case of excessive use of line continuations, anonymous functions cannot be differentiated from function accessors.

The scope of these two should for this reason be combined, sharing the same scope for @.

[zm-develops]

Seems like this needs to be a begin and end rule