On May 1, 9:28 am, Julien <julien.ma...@gmail.com> wrote: > How could (read-string "") access to a binding local to a form? > Is this possible?
(let...) defines a lexical scope, which is only available to forms that are physically (lexically) inside the let. The result of read- string doesn't count as "inside", because the form you've "read" doesn't exist until the read-string function is called. (eval (read-string...)) is a little like calling a function. You can pass arguments to the function, as Christophe suggested, or use a dynamic scope. A dynamic scope, created with (binding...), makes a value available to the code inside the binding AND any functions called by that code. But you can only use binding on vars that have already been defined or declared. So this works: (declare *stuff*) (binding [*stuff* "my stuff"] (eval (read-string "(println *stuff*)"))) ;;=> my stuff -SS --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
