Modified regular expression

[igeni]

Modified regular expression to add support of the unicode characters processing and make code simple

[github-actions]

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[vjeeva]

Hi @igeni, thanks for your contribution! Two things I'd like to ask:

1. Do you have specific examples where this regex change helps, to illustrate the issue?

2. Would you please sign the CLA for this contribution to be allowed?

Our CI is running now to ensure things look good regardless :)

[vjeeva]

If no response is obtained by April 3, 2024, I will be closing this PR!