Ticket #9 (writing defect)
tail patterns in syntax-rules
| Reported by: | alexshinn | Owned by: | alexshinn |
|---|---|---|---|
| Priority: | major | Milestone: | |
| Component: | WG1 - Macros | Keywords: | |
| Cc: |
Description
SRFI-46 and R6RS both allow a fixed number of
tail patterns following an ellipsis in a syntax-rules
pattern:
(P1 ... Pk Pe <ellipsis> Pm+1 ... Pn)
R6RS further allows dotted tail patterns
(P1 ... Pk Pe <ellipsis> Pm+1 ... Pn . Px)
where Px only matches a dotted list.
Do we allow either or both of these extensions?
Change History
comment:2 Changed 19 months ago by cowan
- Status changed from closed to reopened
- Resolution fixed deleted
To be revoted because there was no simple majority.
comment:3 Changed 18 months ago by alexshinn
- Status changed from reopened to closed
- Resolution set to fixed
Both patterns will be accepted.
comment:4 Changed 16 months ago by alexshinn
- Status changed from closed to reopened
- Resolution fixed deleted
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The WG voted to accept both these features.