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@pattern regex does not work with literal spaces in it #1857

@lobabob

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@lobabob

If you do a regex like this: /^[a-zA-Z0-9 ]*$/ tsoa will give you an Invalid regular expression: /^[a-zA-Z0-9/: Unterminated character class SyntaxError at runtime.

Pretty sure this is because @pattern looks for a space to separate the regex and the error message. Which means the rest of the regex after the space gets cut off and treated as part of the error message.

I understand you can /s to match whitespace as an alternative, but I'm talking about the case of matching a literal space character only where you don't want to match all whitespace characters.

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