>Synopsis: ksh: case statement in command substitution raises a syntax
>error
>Category: system
>Environment:
System : OpenBSD 6.4
Details : OpenBSD 6.4 (GENERIC.MP) #364: Thu Oct 11 13:30:23 MDT
2018
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
All of four commands below shall output "OK":
1. (case 1 in (1) echo OK;; esac)
2. (case 1 in 1) echo OK;; esac)
3. echo $(case 1 in (1) echo OK;; esac)
4. echo $(case 1 in 1) echo OK;; esac)
With OpenBSD ksh(1), however, all but 4. behave as expected.
$ (case 1 in (1) echo OK;; esac)
OK
$ (case 1 in 1) echo OK;; esac)
OK
$ echo $(case 1 in (1) echo OK;; esac)
OK
$ echo $(case 1 in 1) echo OK;; esac)
ksh: syntax error: `;;' unexpected
It seems a bug in eval.c but I could not find where it exactly is.
The problem initially targeted bash and zsh, and was described
in the following (Japanese) article:
https://qiita.com/richmikan@github/items/8eebbacc73f80c18a728
