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

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
68/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
matlab
Domain
tooling

Research direction

Start at Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage around line 2491 and inspect the function-handle accessor pattern. Reproduce the issue with the linked examples, then verify that arbitrary spaces are highlighted while newlines remain disallowed and line continuations are not mistaken for anonymous functions.

Written by the indexing model from the issue text.

Description

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

image

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

image

https://github.com/mathworks/MATLAB-Language-grammar/blob/4f1c0c8e8eac1494ee9c2bac18605aca08b08806/Matlab.tmbundle/Syntaxes/MATLAB.tmLanguage#L2491

Dominant language
MATLAB
Stars
64
Forks
22
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