Re: Find a char in string

[Steve Izma]

On Thu, Jun 24, 2021 at 11:23:48AM +0100, Denis M. Wilson wrote:
> Subject: Re: Find a char in string
> 
> Macros attached.
> ...
> .     if \[str]\*[str-tmp]\[str]\$[3]\[str] \{\

Very useful macros, thanks. But I am astonished that \[str] comes
into existence merely by being called. That's an almost
theological concept. Is that documented anywhere? Are there other
instances where we can expect something to be created from
nothing (i.e., without explicit definition)?

    -- Steve

-- 
Steve Izma
-
Home: 35 Locust St., Kitchener, Ontario, Canada  N2H 1W6
E-mail: sizma@golden.net  phone: 519-745-1313
cell (text only; not frequently checked): 519-998-2684

==
The most erroneous stories are those we think we know best – and
therefore never scrutinize or question.
    -- Stephen Jay Gould, *Full House: The Spread of Excellence
    from Plato to Darwin*, 1996