Re: Proper way to split a string?

On Tue, 17 Dec 2024 01:37:49 -0300
Luc <luc@sep.invalid> wrote:

[snip]

OK, how about this:
 
bind $::SRw  <Return>  {set ::PINPUT "$pname::::::::::::::::$pfile"}

Incidentally, this wont work.

% set pname foo
foo
% set pfile bar
bar
% set ::PINPUT "$pname::::::::::::::::$pfile"
can't read "pname::::::::::::::::": no such variable

This is because there are two variable expansions in this expression:
one is ${pname::::::::::::::::} which is a variable in the (relative to
current scope) pname namespace with the with the empty string {} as
name (equivalent to [namespace eval pname {set {}}]) and the other is
$pfile. As the [namespace] documentation states, two or more colons are
namespace separators, so any number of colons > 2 are equivalent to "::".

Quoting the manual page:
"Extra colons in any separator part of a qualified name are ignored;
i.e. two or more colons are treated as a namespace separator.
A trailing :: in a qualified variable or command name refers to the
variable or command named {}."

Regards

--
Emiliano