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• Basic-printing

Vl-print-url

(vl-print-url x &key (ps 'ps)) prints text with automatic URL encoding.

Signature

(vl-print-url x &key (ps 'ps)) → ps

Arguments

x — Guard (vl-printable-p x).

This function simply prints the URL-encoding of x to ps, regardless of the output mode. It is useful for printing parts of URLs with the proper encoding.

Definitions and Theorems

Function: vl-print-url-fn

(defun vl-print-url-fn (x ps)
 (declare (xargs :stobjs (ps)))
 (declare (xargs :guard (vl-printable-p x)))
 (let ((__function__ 'vl-print-url))
  (declare (ignorable __function__))
  (let* ((rchars (vl-ps->rchars))
         (x (vl-printable-fix x)))
   (cond
    ((stringp x)
     (vl-ps-update-rchars (str::url-encode-string-aux x 0 (length x)
                                                      rchars)))
    ((and (atom x) x)
     (vl-ps-update-rchars
          (str::url-encode-chars-aux (explode-atom x 10)
                                     rchars)))
    (t
     (vl-ps-update-rchars (str::url-encode-chars-aux x rchars)))))))

Theorem: vl-print-url-fn-of-vl-printable-fix-x

(defthm vl-print-url-fn-of-vl-printable-fix-x
  (equal (vl-print-url-fn (vl-printable-fix x)
                          ps)
         (vl-print-url-fn x ps)))

Theorem: vl-print-url-fn-vl-printable-equiv-congruence-on-x

(defthm vl-print-url-fn-vl-printable-equiv-congruence-on-x
  (implies (vl-printable-equiv x x-equiv)
           (equal (vl-print-url-fn x ps)
                  (vl-print-url-fn x-equiv ps)))
  :rule-classes :congruence)