:s and sigspace semantics

[masak]

* TimToady notes that in slide 61, ’INSERT’ :s <pairlist> implies deprecated :s semantics, since it would not match ws between the 'INSERT' and the <pairlist> under the new rules (which would allow a simple rule declaration to work)
<TimToady> jnthn: since :s does not itself qualify as a matcher that enables trailing sigspace, in the new definition
<jnthn> TimToady: Aye, I was pragmatically teaching people what they can expect to work in NQP "right now". :)
<TimToady> well, :s’INSERT’ <pairlist> would be forward compatible :)
<jnthn> Point. :)
* masak files an issue