verifyModel report an error

[feiranl]

• verifyModel reports an error when I run:results = verifyModel(model_original,'simpleCheck',true,'restrictToFields',{'rules'}) error as below:

Undefined unary operator '~' for input arguments of type 'string'.

Error in checkPresentFields (line 93)
    if ~propertiesMatched

Error in verifyModel (line 116)
results = checkPresentFields(requiredFields,model,results);

This is caused by the matlab read csv file when there contains ", it would also read the ", even though this is for separate cells. Therefore, it reads the COBRA_structure_fields.csv as "iscell(x) && all(cellfun(@(y) ischar(y) && verifyRuleSyntax(y) , x))" for rules, which cannot be used for the function eval.

The issue is tested on latest cobra version with matlab2019b and matlab2017b. The issue only happens in matlab2019b.

I hereby confirm that I have:

• [x] Tried to solve the issue on my own
• [x] Retried to run my code with the latest version of The COBRA Toolbox
• [x] Checked that a similar issue has not already been opened