jc_0222: Usable characters for signal and bus names
Sub ID Recommendations
NA-MAAB — a, b, c, d, e, f
JMAAB — a, b, c, d, e, f
MATLAB Versions
All
Rule
Sub ID a
Only these character types shall be used in signal and bus names:
Single-byte alphanumeric characters (
a-z
,A-Z
,0-9
)Single-byte underscore (
_
)
Line breaks, single-byte spaces, double-byte characters, and control characters shall not be used.
Not Applicable
Sub ID b
Signal and bus names shall not use numbers at the beginning.
Not Applicable
Sub ID c
The signal or bus name shall not use underscores at the beginning.
Not Applicable
Sub ID d
Signal and bus names shall not use underscores at the end.
Not Applicable
Sub ID e
Signal and bus names shall not use consecutive underscores.
Not Applicable
Sub ID f
Signal and bus names shall not consist solely of a single reserved MATLAB® word.
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 IDs 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 IDs f:
Readability is impaired.
Deviation from the rule can cause unexpected issues.
Verification
Model Advisor check: Check usable characters for signal names and bus names (Simulink Check)
Last Changed
R2020a
See Also
JMAAB guideline jc_0222, which is available in Control Algorithm Modeling Guidelines Using MATLAB, Simulink, and Stateflow on the MathWorks® website.
Reserved Keywords (Embedded Coder)
Reserved Identifiers and Code Replacement (Embedded Coder)
Version History
Introduced in R2020a