Evaluating symbols in nested lists

[Tim Johnson]

I have the following symbols and values:

> key

"test"

> res

(("test" "one"))

> val

"one"

> newval

"two"

;; And I want to change 'res to (("test" ("one" "two"))

;; but:

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(replace-assoc key res '(key (list val newval)))
;; gives me

(key (list val newval))

I understand that the symbols in '(key (list val newval))

aren't being evaluated, but don't

know which function to use to evaluate them.

Thanks

Tim

[Tim Johnson]

Never mind:

I was looking for this:

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(replace-assoc key res (expand '(key (val newval))
                                           'key 'val 'newval))

Doesn't common lisp use the comma operator to do the

same thing?

thanks

Tim

[Lutz]

just do:

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(replace-assoc key res (list key (list val newval)))

=> (("test" ("one" "two")))

Lutz

[Tim Johnson]

Understood.

Thanks, Lutz