jc_0232: Usable characters for parameter names

Since R2020a

Guideline Publication

Control Algorithm Modeling Guidelines - Using MATLAB^®, Simulink^®, and Stateflow^®

• Version 5.0

Sub ID Recommendations

• NA-MAAB — d, e

• JMAAB — a, b, c, d, e, f

MATLAB Versions

All

Rule

Sub ID a

Only these character types shall be used in parameter names:

• Single-byte alphanumeric characters (a-z, A-Z, 0-9)

• Single-byte underscore (_)

Line break, single-byte space, double-byte characters, and control characters shall not be used.

Custom Parameter

Not Applicable

Sub ID b

The parameter name shall not use numbers at the beginning.

Custom Parameter

Not Applicable

Sub ID c

The parameter name shall not use underscores at the beginning.

Custom Parameter

Not Applicable

Sub ID d

The parameter name shall not use underscores at the end.

Custom Parameter

Not Applicable

Sub ID e

The parameter name shall not use consecutive underscores.

Custom Parameter

Not Applicable

Sub ID f

The parameter name shall not consist solely of a single reserved MATLAB word.

Custom Parameter

Not Applicable

Rationale

Sub IDs a, b:

• Deviation from the rule can make it difficult to maintain the integrity of the model and code.

Sub IDs c, e:

• Readability is impaired.

Sub ID d:

• Readability is impaired.

• Underscores can be used to separate words. However, they are typically used as word breaks and can cause misunderstanding in the description.

Sub ID f:

• Readability is impaired. Deviation from the rule can cause unexpected issues.

Verification

Model Advisor check: Check usable characters for parameter names (Simulink Check)

Last Changed

R2020a