(setf debug::*debug-print-length* nil))
-;;;; the OCI library, part V: converting from OCI representations to Lisp
-;;;; representations
-
;; Return the INDEXth string of the OCI array, represented as Lisp
;; SIMPLE-STRING. SIZE is the size of the fixed-width fields used by
;; Oracle to store strings within the array.
-;; In the wild world of databases, trailing spaces aren't generally
-;; significant, since e.g. "LARRY " and "LARRY " are the same string
-;; stored in different fixed-width fields. OCI drops trailing spaces
-;; for us in some cases but apparently not for fields of fixed
-;; character width, e.g.
-;;
-;; (dbi:sql "create table employees (name char(15), job char(15), city
-;; char(15), rate float)" :db orcl :types :auto)
-;; In order to map the "same string" property above onto Lisp equality,
-;; we drop trailing spaces in all cases:
-
(uffi:def-type string-pointer (* :unsigned-char))
(defun deref-oci-string (arrayptr string-index size)
(declare (type string-pointer arrayptr))
(declare (type (mod #.+n-buf-rows+) string-index))
(declare (type (and unsigned-byte fixnum) size))
- (let* ((raw (uffi:convert-from-foreign-string
- (uffi:make-pointer
- (+ (uffi:pointer-address arrayptr) (* string-index size))
- :unsigned-char)))
- (trimmed (string-trim " " raw)))
- (if (equal trimmed "NULL") nil trimmed)))
+ (let ((str (uffi:convert-from-foreign-string
+ (uffi:make-pointer
+ (+ (uffi:pointer-address arrayptr) (* string-index size))
+ :unsigned-char))))
+ (if (string-equal str "NULL") nil str)))
;; the OCI library, part Z: no-longer used logic to convert from
;; Oracle's binary date representation to Common Lisp's native date