Fix can't match the last+on some boards.

[Tokisaki-Galaxy]

Fixed an error in the old regular expression that the+at the end could not be matched on some boards.

cannot-matched-issue

For example, when I use STC89C516RD+, I will get an error, because the old regular expression regards the+at the end as an error.

[CLAassistant]

All committers have signed the CLA.

[Tokisaki-Galaxy]

Hi, I noticed an issue that seems to cause significant problems. Users are unable to use development boards with '+' at the end of their names. This can be quite limiting for those who rely on such boards.

I wanted to follow up and ask if there are any concerns or reasons why the PR has not been merged yet. If there are any changes or improvements needed, please let me know, and I would be happy to make the necessary adjustments.

Thank you for your attention to this matter. I really like this project.

Best regards, tokisaki

[ivankravets]

Resolved in https://github.com/platformio/platform-intel_mcs51/commit/ad5d629c010841bbf1ee6f6e65207d8775e4e7cb

[calyle]

It never seems to be resolved. Only STC89C516RD+ can be chose, and there's no STC89C516RD.

[Tokisaki-Galaxy]

It never seems to be resolved. Only STC89C516RD+ can be chose, and there's no STC89C516RD.

I believe you are correct. If you look at the commit that was mentioned when this PR was closed, the fix was to rename the board's definition file directly, rather than changing the regular expression as originally proposed.

This is why the STC89C516RD+ board now appears, but the original STC89C516RD is gone. The underlying validation issue still remains.