16 Şubat 2021 Salı tarihinde Koichi Murase <myoga.mur...@gmail.com> yazdı:
> 2021年2月16日(火) 19:24 Oğuz <oguzismailuy...@gmail.com>: > > XRAT Shell Grammar ( https://pubs.opengroup.org/ > onlinepubs/9699919799/xrat/V4_xcu_chap02.html#tag_23_02_10 ) explains > that giving almost the same examples as we posted in this thread. > > Thank you, interesting! So, if I understand correctly, the following > construct which Bash allows is finally disallowed by POSIX? > > $ if (false) then (echo x) else (echo y) fi No, it is allowed. > > To summarize, the following cases are required by the POSIX standard > to be correctly parsed? > > $ bash -c ': $(case x in esac)' > $ bash -c ': $(case x in (x) if :; then echo a; fi esac)' > $ bash -c ': $(case x in (x) a() { echo a; } esac)' > $ bash -c ': $(case x in (x) { echo a; } esac)' > $ bash -c ': $(case x in (x) while false; do echo a; done esac)' > $ bash -c ': $(case x in (x) case y in (y) echo a;; esac esac)' Yes. > > and this case > > $ bash -c ': $(case x in (x) (echo a) esac)' > > could be a Bash extension. > No. -- Oğuz
