checkHelpText

Checks if texts are provided in the required locations.

CheckHelpText: A list of locations where help text needs to comply with the settings as specified in the other parameters of this check. Options are: classdef, properties, events, enumerations, methods, top-level functions, local functions and nested functions.
HelpRequired (boolean): Set to true to make help text required for the items selected in CheckHelpText.
BlockHelpLocation: Location where help text should be provided for blocks. Options are: outside block, inside block and either.

Example:
```
% Outside block.
function y = f(u)
    % Inside block.
end
```
FieldHelpLocation: Location where help text should be provided for fields. Options are: above field, after field and either.

Example:
```
properties
    % Above field.
    field % After field.
end
```
Format: Check on the format for the help text, specified as a regular expression. The check provides a context structure, that can be used in the pattern. Depending on the context it provides the following fields:
- classdef: name, superclasses
- property: name
- event: name
- enumeration: name
- method: name, argin, argout
- function: name, argin, argout
  
  Example:
```
'(??@context.name) .+\.\n\n.+'
```
  (??@cmd): Execute the MATLAB command represented by cmd, and include the output returned by the command in the match expression.

Exemption tag: %@ok<HELPT>