Are prompt and PROMPT tied in zsh?

Question

$ echo ${(t)prompt}
scalar-special
$ echo ${(t)PROMPT}
scalar-special

Zsh shows that they are special, but does not show that they are tied like:

$ echo ${(t)manpath}
array-tied-special
$ echo ${(t)MANPATH}
scalar-tied-export-special

Answer 1

From the man page:

   PROMPT <S> <Z>
          Same as PS1 ...
   prompt <S> <Z>
          Same as PS1.

This means that if you modify one of PROMPT , prompt or PS1 , and then look at one of the other two variables, you will see that your modifications are there as well.

PROMPT=foo
echo $PS1 # outputs foo
echo $prompt # outputs foo