sorear/niecza — Issue #105: /<[]>/ should work and mean /<!>/
Author: masak
Created: 2012-02-02 16:07:54+00:00
State: open

niecza: say so 'a' ~~ /<[]>/
niecza v13-389-g852f0ff: OUTPUT«Unhandled exception: Unable to resolve method oplift in class Any [...]
std: say so 'a' ~~ /<[]>/
std 48335fc: OUTPUT«ok 00:01 112m␤»
* masak submits nieczabug

An empty character class is syntactically correct, and comes out meaning, of course, "match any of this empty set of characters", i.e. "fail".