Issue #20785 has been updated by mame (Yusuke Endoh). Dan0042 (Daniel DeLorme) wrote in #note-8:
I doubt my opinion makes any difference here, but the above makes no sense to me. I would expect this to be a valid pattern match:
```ruby a in b, c, d ```
In RubyConf venue, I showed @matz your example, and it has convinced him. He changed his mind and said that a comma at the line end should continue to the next line. Your opinion made difference :-) ---------------------------------------- Bug #20785: Should `a in b, and c` `a in b, or c` `a in b, rescue c` be syntax ok? https://bugs.ruby-lang.org/issues/20785#change-110669 * Author: tompng (tomoya ishida) * Status: Assigned * Assignee: matz (Yukihiro Matsumoto) * ruby -v: ruby 3.4.0dev (2024-10-04T03:22:53Z master 939ec9f080) +YJIT +MN +PRISM [arm64-darwin22] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- This code is accepted in parse.y but rejected in prism ~~~ruby tap do a in b, and c a in b, or c a in b, rescue c end # parsed as tap do (a in b,;) and c (a in b,;) or c a in b,; rescue c end ~~~ I think these should be rejected like prism (parse.y accepts) ~~~ruby a in b, and c a in b, and c tap do a in b, rescue c end ~~~ I think these should be accepted like parse.y (prism rejects) ~~~ruby tap do a in b, end tap do a in b, rescue end ~~~ -- https://bugs.ruby-lang.org/