jc_0211: Usable characters for Inport blocks and Outport block

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 Inport and Outport block 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.

Custom Parameter

Not Applicable

Example — Incorrect

Sub ID b

[Inport] and [Outport] block names shall not use numbers at the beginning.

Custom Parameter

Not Applicable

Example — Incorrect

Sub ID c

[Inport] and [Outport] block names shall not use underscores at the beginning.

Custom Parameter

Not Applicable

Example — Incorrect

Sub ID d

[Inport] and [Outport] block names shall not use underscores at the end.

Custom Parameter

Not Applicable

Example — Incorrect

Sub ID e

[Inport] and [Outport] block names shall not use consecutive underscores.

Custom Parameter

Not Applicable

Example — Incorrect

Sub ID f

[Inport] and [Outport] block names shall not consist solely of a single reserved MATLAB word.

Custom Parameter

Not Applicable

Example — Incorrect

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 port block names (Simulink Check)

Last Changed

R2020a

See Also

Introduced in R2020a