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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

#15260 — x[

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

it can't be called like a normal function, but things like "x[" or \x[ work

this bug seems old

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#15264

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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