Re: tilde syntax

[Ray Andrews <rayandrews@eastlink.ca>]

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On 2024-01-04 17:41, Lawrence Velázquez wrote:

> Another important part occurs earlier in "Parameter Expansion" and
> can admittedly be hard to find:

Yes.  Seems almost inevitable that with such terse syntax normal search

culture is going to be frustrating.  One must master the shell's jargon.

I wonder if a syntax index could be contemplated, it would look rather 
strange:

$(

$((

$~

${~

if[

if[[

... every last construction.

> This is why you can use $~foo instead of ${~foo} sometimes.

I've noticed that but I don't even try to understand it.  I am in awe of 
the

geniuses who wrote the parser.  The list of ifs, ands, buts and maybes is

not for a mere mortal to understand.  That's what accretion gets you -- 
couldn't

be otherwise.

> That just refers to the result of the parameter expansion being
> subsequently used as something other than a literal value, if the
> context calls for it.

God knows.  It's a steep hill to climb if you're not familiar with it.  
Anyway I'm

at least alert to the issue.

Tx.


>
>

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