(Nils' Scheme Snippets)

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(implode list) => symbol

Purpose

Implode a list of single-character symbols into a symbol.

Arguments

list	list to implode

Example

(implode '(b l a c k h o l e)) => blackhole

(define (implode x)
  (letrec
    ((sym->char
       (lambda (x)
         (let ((str (symbol->string x)))
           (if (not (= (string-length str) 1))
               (wrong "bad symbol in implode" x)
               (string-ref str 0))))))
    (string->symbol
      (list->string (map sym->char x)))))