[TUHS] RegExp decision for meta characters: Circumflex

[Bakul Shah]

On Sep 17, 2021, at 6:03 PM, Greg 'groggy' Lehey <grog at lemis.com> wrote:
> 
> On Friday, 17 September 2021 at 13:40:25 -0700, Chris Torek wrote:
>> Also worth noting, though the precise history predates my own
>> experience: it's common in grammar theory to use `$` as the end
>> symbol.  Was this from REs using `$` as an end symbol as well,
>> or did REs adopt `$` from here, or ...?
> 
> Weren't there programming languages that used $ as a statement
> terminator instead of ;?

IIRC Macsyma used ; as well as $ as statement terminators.
; if you wanted to print the output of an expresion,
$ if you wanted to suppress the output. But I suspect 
it is not related to this.