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Re: x[

Path csiph.com!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail
From Stephane Chazelas <stephane.chazelas@gmail.com>
Newsgroups gnu.bash.bug
Subject Re: x[
Date Mon, 29 Jul 2019 18:53:38 +0100
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2019-07-29 17:55:58 +0100, Isabella Bosia:
> haven't really looked into why this happens but x[ seems to trigger some
> funny parser behavior
> 
> x[ newline     should not prompt with PS2
> 
> it can't be defined as a normal sh function, but it can be defined with the
> function keyword
[...]

x[ is the start of an array element assignment. newline is valid (just a token
separator like space) inside an arithmetic expression.

$ x[
> 1
> +
> 1
> ]=3
$ typeset -p x
declare -a x=([2]="3")

You'll notice:

$ +[
+[: command not found
$ 'x'[
x[: command not found

-- 
Stephane

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x[ Isabella Bosia <izaberina@gmail.com> - 2019-07-29 17:55 +0100
  Re: x[ Stephane Chazelas <stephane.chazelas@gmail.com> - 2019-07-29 18:53 +0100

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