Perl numeric constants
Posted Jun 8, 2013 12:53 UTC (Sat) by dark
In reply to: Perl numeric constants
Parent article: Little things that matter in language design
I've worked on a variant of Pascal that allowed underscores freely in identifiers, and the underscores were ignored. So, similar to what you describe except not usable in numbers.
It was actually a pain to work with since I could never just grep for an identifier and be sure I got all uses. I considered implementing an --ignore-underscore flag for GNU grep but after the project was done I no longer felt the need :)
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