Re^3: A sub named ∃

/w isn't the pattern for matching the first character in identifiers. I never consider \w when matching that first character. In unicode, the pattern to follow is likely /\A\p{IdFirst}\w*\z/. In ASCII, the pattern is /\A[[:alpha:]_]\w*\z/. The pattern /\^\w+\z/ is always wrong when matching identifiers.

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Re^4: A sub named ∃ by vkon (Curate) on Nov 30, 2006 at 21:27 UTC
all my concious life any unicode-capable perl matches with \w any unicode letter, and I often match russian letters e.g. 0x0432 with \w. I never did `[[:alpha:]]`, but did succeeded russian letters matching with \w	[reply] [d/l]
Re^5: A sub named ∃ by diotalevi (Canon) on Nov 30, 2006 at 21:39 UTC
\w is `[_\p{IsAlpha}\p{IsNumeric]`. ⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊	[reply] [d/l]
Re^6: A sub named ∃ ([^\W\d]) by tye (Sage) on Nov 30, 2006 at 22:10 UTC
Or, more concisely, `[^\W\d]`; so identifiers match `/\b[^\W\d]\w*\b/`. Gosh, I love that trick. :) - tye	[reply] [d/l] [select]
Re^7: A sub named ∃ ([^\W\d]) by diotalevi (Canon) on Nov 30, 2006 at 23:13 UTC
Re^6: A sub named ∃ by vkon (Curate) on Nov 30, 2006 at 22:20 UTC
Oh, I see. we were speaking oranges and green oranges... Still, my first sentence is valid (∃!~/\w/), but you're saying that's not enough for identifiers rule... but I was not intended to say that I am rediscovering identifier regexp! :)	[reply]