MATLAB: Autocomplete of filenames for function input params

completefunctionsmatlab functionmatlab programmingtabtab completion

When using matlab functions such as "load" or "save" you can double-tab to autocomplete filenames that are in the path. However, when I have written my own functions that take filename strings as input this feature is not available (Which is reasonable since all functions shouldn't assume filename input).

I wonder if it is possible to somehow "hint" your own functions that they should try to autocomplete input parameters by searching over files in your matlab path.

Best Answer

See Yair's article about tab-completion: Undocumented:Tab-Completeion

There you find instructions for editing:

 edit(fullfile(matlabroot,'toolbox/local/TC.xml'))

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uigetfile('*.m','select the m file','E:/matlab')

MATLAB: How to configure tab completion for the function in MATLAB 2016

As it turns out, MATLAB 2016 uses a functionSignatures.json file to configure automatic tab completion. One can easily read the content of any such file you find within the $matlabroot\toolbox\ folder to understand how it works.

Here is a very simple example functionSignatures.json file showing how to set up tab completion for a function named nd2finfo :

{
"nd2finfo":
{
  "inputs":
  [
    {"name":"nd2file", "kind":"required", "type":"filepath=*.nd2" }
  ]
}
}

This file should be saved within the same folder that has the function definition. While typing in the function input, upon pressing tab, I can see a list of files with the extension .nd2 popping up.

Best Answer

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