Preamble: If we start in the "code" mode, do we need to delimit the preamble?

[mihnita]

No description provided.

[mihnita]

Comments migrated from the slides

Start in text, delimit variants, use single brackets

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Slides comment, Markus Scherer (@markusicu), 9:14 AM Apr 25

In principle, I am strongly in favor of B, but I would quibble with the specific syntax shown on the following slides.

For example, using square brackets means that they (or at least the closing one, better both) must be escaped. Consider sticking with curly braces.

The selector head should have some syntax, not just a nested list of selectors. I suggest {? selectors+ }.

[markusicu]

While working on the compromise syntax, I changed my opinion compared to my older comment on the slide. I now favor starting in "code" mode and always delimiting patterns with {}. Within "code" mode, it is easy to give the syntax elements distinct prefixes, so we need not add another layer of delimiters there.

[romulocintra]

Related/Redundant #252 #257