X-Git-Url: http://git.kpe.io/?p=cl-base64.git;a=blobdiff_plain;f=package.lisp;fp=package.lisp;h=71524cf05565f68162387e854ccd93592aff2c4e;hp=5eac24111e5430a80ac41ebf410d46356def62a3;hb=ecff5c5549684a5636a0436961b879177dc1039f;hpb=9d5a88ecfd67b28c1c2b3b3497f2237e37032691

diff --git a/package.lisp b/package.lisp
index 5eac241..71524cf 100644
--- a/package.lisp
+++ b/package.lisp
@@ -15,13 +15,13 @@
   (:nicknames #:base64)
   (:use #:cl)
   (:export #:base64-stream-to-integer
+           #:base64-stream-to-string
+           #:base64-stream-to-stream
+           #:base64-stream-to-usb8-array
            #:base64-string-to-integer
            #:base64-string-to-string
-           #:base64-stream-to-string
            #:base64-string-to-stream
-           #:base64-stream-to-stream
            #:base64-string-to-usb8-array
-           #:base64-stream-to-usb8-array
            #:string-to-base64-string
            #:string-to-base64-stream
            #:usb8-array-to-base64-string
@@ -31,17 +31,23 @@
            #:integer-to-base64-string
            #:integer-to-base64-stream
 
-           ;; For creating custom encode/decode tables
+           ;; Conditions.
+           #:base64-error
+           #:bad-base64-character
+           #:incomplete-base64-data
+
+           ;; For creating custom encode/decode tables.
+           #:make-decode-table
+           #:+decode-table+
+           #:+uri-decode-table+
+           ;; What's the point of exporting these?
            #:*uri-encode-table*
            #:*uri-decode-table*
-           #:make-decode-table
-
-           #:test-base64
            ))
 
 (in-package #:cl-base64)
 
-
+(eval-when (:compile-toplevel :load-toplevel :execute)
 (defvar *encode-table*
   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/")
 (declaim (type simple-string *encode-table*))
@@ -50,22 +56,38 @@
   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_")
 (declaim (type simple-string *uri-encode-table*))
 
-(deftype decode-table () '(simple-array fixnum (256)))
-
-(defun make-decode-table (encode-table)
-  (let ((dt (make-array 256 :adjustable nil :fill-pointer nil
-                        :element-type 'fixnum
-                        :initial-element -1)))
-    (declare (type decode-table dt))
-    (loop for char of-type character across encode-table
-       for index of-type fixnum from 0 below 64
-       do (setf (aref dt (the fixnum (char-code char))) index))
-    dt))
-
-(defvar *decode-table* (make-decode-table *encode-table*))
-
-(defvar *uri-decode-table* (make-decode-table *uri-encode-table*))
-
 (defvar *pad-char* #\=)
 (defvar *uri-pad-char* #\.)
 (declaim (type character *pad-char* *uri-pad-char*))
+
+  (deftype decode-table () '(simple-array (signed-byte 8) (128)))
+  (defun make-decode-table (encode-table pad-char
+                            &key (whitespace-chars
+                                  '(#\Linefeed #\Return #\Space #\Tab)))
+    (assert (< (length encode-table) 128)
+            (encode-table)
+            "Encode table too big: ~S" encode-table)
+    (let ((dt (make-array 128 :element-type '(signed-byte 8)
+                              :initial-element -1)))
+      (declare (type decode-table dt))
+      (loop for char across encode-table
+            for index upfrom 0
+            do (setf (aref dt (char-code char)) index))
+      (setf (aref dt (char-code pad-char)) -2)
+      (loop for char in whitespace-chars
+            do (setf (aref dt (char-code char)) -3))
+      dt)))
+
+(defconstant +decode-table+
+  (if (boundp '+decode-table+)
+      (symbol-value '+decode-table+)
+      (make-decode-table *encode-table* *pad-char*)))
+(defvar *decode-table* +decode-table+ "Deprecated.")
+(declaim (type decode-table +decode-table+ *decode-table*))
+
+(defconstant +uri-decode-table+
+  (if (boundp '+uri-decode-table+)
+      (symbol-value '+uri-decode-table+)
+      (make-decode-table *uri-encode-table* *uri-pad-char*)))
+(defvar *uri-decode-table* +uri-decode-table+ "Deprecated.")
+(declaim (type decode-table +uri-decode-table+ *uri-decode-table*))