+ ;; Test coding system functions
+
+ ;; Create alias for coding system without subsidiaries
+ (Assert (coding-system-p (find-coding-system 'binary)))
+ (Assert (coding-system-canonical-name-p 'binary))
+ (Assert (not (coding-system-alias-p 'binary)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias)))
+ (Assert (not (coding-system-canonical-name-p 'mule-tests-alias)))
+ (Check-Error-Message
+ error "Symbol is the canonical name of a coding system and cannot be redefined"
+ (define-coding-system-alias 'binary 'iso8859-2))
+ (Check-Error-Message
+ error "Symbol is not a coding system alias"
+ (coding-system-aliasee 'binary))
+
+ (define-coding-system-alias 'mule-tests-alias 'binary)
+ (Assert (coding-system-alias-p 'mule-tests-alias))
+ (Assert (not (coding-system-canonical-name-p 'mule-tests-alias)))
+ (Assert (eq (get-coding-system 'binary) (get-coding-system 'mule-tests-alias)))
+ (Assert (eq 'binary (coding-system-aliasee 'mule-tests-alias)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-unix)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-dos)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-mac)))
+
+ (define-coding-system-alias 'mule-tests-alias (get-coding-system 'binary))
+ (Assert (coding-system-alias-p 'mule-tests-alias))
+ (Assert (not (coding-system-canonical-name-p 'mule-tests-alias)))
+ (Assert (eq (get-coding-system 'binary) (get-coding-system 'mule-tests-alias)))
+ (Assert (eq 'binary (coding-system-aliasee 'mule-tests-alias)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-unix)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-dos)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-mac)))
+
+ (define-coding-system-alias 'nested-mule-tests-alias 'mule-tests-alias)
+ (Assert (coding-system-alias-p 'nested-mule-tests-alias))
+ (Assert (not (coding-system-canonical-name-p 'nested-mule-tests-alias)))
+ (Assert (eq (get-coding-system 'binary) (get-coding-system 'nested-mule-tests-alias)))
+ (Assert (eq (coding-system-aliasee 'nested-mule-tests-alias) 'mule-tests-alias))
+ (Assert (eq 'mule-tests-alias (coding-system-aliasee 'nested-mule-tests-alias)))
+ (Assert (not (coding-system-alias-p 'nested-mule-tests-alias-unix)))
+ (Assert (not (coding-system-alias-p 'nested-mule-tests-alias-dos)))
+ (Assert (not (coding-system-alias-p 'nested-mule-tests-alias-mac)))
+
+ (Check-Error-Message
+ error "Attempt to create a coding system alias loop"
+ (define-coding-system-alias 'mule-tests-alias 'nested-mule-tests-alias))
+ (Check-Error-Message
+ error "No such coding system"
+ (define-coding-system-alias 'no-such-coding-system 'no-such-coding-system))
+ (Check-Error-Message
+ error "Attempt to create a coding system alias loop"
+ (define-coding-system-alias 'mule-tests-alias 'mule-tests-alias))
+
+ (define-coding-system-alias 'nested-mule-tests-alias nil)
+ (define-coding-system-alias 'mule-tests-alias nil)
+ (Assert (coding-system-p (find-coding-system 'binary)))
+ (Assert (coding-system-canonical-name-p 'binary))
+ (Assert (not (coding-system-alias-p 'binary)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias)))
+ (Assert (not (coding-system-canonical-name-p 'mule-tests-alias)))
+ (Check-Error-Message
+ error "Symbol is the canonical name of a coding system and cannot be redefined"
+ (define-coding-system-alias 'binary 'iso8859-2))
+ (Check-Error-Message
+ error "Symbol is not a coding system alias"
+ (coding-system-aliasee 'binary))
+
+ (define-coding-system-alias 'nested-mule-tests-alias nil)
+ (define-coding-system-alias 'mule-tests-alias nil)
+
+ ;; Create alias for coding system with subsidiaries
+ (define-coding-system-alias 'mule-tests-alias 'iso-8859-7)
+ (Assert (coding-system-alias-p 'mule-tests-alias))
+ (Assert (not (coding-system-canonical-name-p 'mule-tests-alias)))
+ (Assert (eq (get-coding-system 'iso-8859-7) (get-coding-system 'mule-tests-alias)))
+ (Assert (eq 'iso-8859-7 (coding-system-aliasee 'mule-tests-alias)))
+ (Assert (coding-system-alias-p 'mule-tests-alias-unix))
+ (Assert (coding-system-alias-p 'mule-tests-alias-dos))
+ (Assert (coding-system-alias-p 'mule-tests-alias-mac))
+
+ (define-coding-system-alias 'mule-tests-alias (get-coding-system 'iso-8859-7))
+ (Assert (coding-system-alias-p 'mule-tests-alias))
+ (Assert (not (coding-system-canonical-name-p 'mule-tests-alias)))
+ (Assert (eq (get-coding-system 'iso-8859-7) (get-coding-system 'mule-tests-alias)))
+ (Assert (eq 'iso-8859-7 (coding-system-aliasee 'mule-tests-alias)))
+ (Assert (coding-system-alias-p 'mule-tests-alias-unix))
+ (Assert (coding-system-alias-p 'mule-tests-alias-dos))
+ (Assert (coding-system-alias-p 'mule-tests-alias-mac))
+ (Assert (eq (find-coding-system 'mule-tests-alias-mac)
+ (find-coding-system 'iso-8859-7-mac)))
+
+ (define-coding-system-alias 'nested-mule-tests-alias 'mule-tests-alias)
+ (Assert (coding-system-alias-p 'nested-mule-tests-alias))
+ (Assert (not (coding-system-canonical-name-p 'nested-mule-tests-alias)))
+ (Assert (eq (get-coding-system 'iso-8859-7)
+ (get-coding-system 'nested-mule-tests-alias)))
+ (Assert (eq (coding-system-aliasee 'nested-mule-tests-alias) 'mule-tests-alias))
+ (Assert (eq 'mule-tests-alias (coding-system-aliasee 'nested-mule-tests-alias)))
+ (Assert (coding-system-alias-p 'nested-mule-tests-alias-unix))
+ (Assert (coding-system-alias-p 'nested-mule-tests-alias-dos))
+ (Assert (coding-system-alias-p 'nested-mule-tests-alias-mac))
+ (Assert (eq (find-coding-system 'nested-mule-tests-alias-unix)
+ (find-coding-system 'iso-8859-7-unix)))
+
+ (Check-Error-Message
+ error "Attempt to create a coding system alias loop"
+ (define-coding-system-alias 'mule-tests-alias 'nested-mule-tests-alias))
+ (Check-Error-Message
+ error "No such coding system"
+ (define-coding-system-alias 'no-such-coding-system 'no-such-coding-system))
+ (Check-Error-Message
+ error "Attempt to create a coding system alias loop"
+ (define-coding-system-alias 'mule-tests-alias 'mule-tests-alias))
+
+ ;; Test dangling alias deletion
+ (define-coding-system-alias 'mule-tests-alias nil)
+ (Assert (not (coding-system-alias-p 'mule-tests-alias)))
+ (Assert (not (coding-system-alias-p 'mule-tests-alias-unix)))
+ (Assert (not (coding-system-alias-p 'nested-mule-tests-alias)))
+ (Assert (not (coding-system-alias-p 'nested-mule-tests-alias-dos)))
+
+ ;; Test strings waxing and waning across the 8k BIG_STRING limit (see alloc.c)
+ (defun charset-char-string (charset)
+ (let (lo hi string n)
+ (if (= (charset-chars charset) 94)
+ (setq lo 33 hi 126)
+ (setq lo 32 hi 127))
+ (if (= (charset-dimension charset) 1)
+ (progn
+ (setq string (make-string (1+ (- hi lo)) ??))
+ (setq n 0)
+ (loop for j from lo to hi do
+ (progn
+ (aset string n (make-char charset j))
+ (incf n)))
+ string)
+ (progn
+ (setq string (make-string (* (1+ (- hi lo)) (1+ (- hi lo))) ??))
+ (setq n 0)
+ (loop for j from lo to hi do
+ (loop for k from lo to hi do
+ (progn
+ (aset string n (make-char charset j k))
+ (incf n))))
+ string))))
+
+ ;; The following two used to crash xemacs!
+ (Assert (charset-char-string 'japanese-jisx0208))
+ (aset (make-string 9003 ??) 1 (make-char 'latin-iso8859-1 77))
+
+ (let ((greek-string (charset-char-string 'greek-iso8859-7))
+ (string (make-string (* 96 60) ??)))
+ (loop for j from 0 below (length string) do
+ (aset string j (aref greek-string (mod j 96))))
+ (loop for k in '(0 1 58 59) do
+ (Assert (equal (substring string (* 96 k) (* 96 (1+ k))) greek-string))))
+
+ (let ((greek-string (charset-char-string 'greek-iso8859-7))
+ (string (make-string (* 96 60) ??)))
+ (loop for j from (1- (length string)) downto 0 do
+ (aset string j (aref greek-string (mod j 96))))
+ (loop for k in '(0 1 58 59) do
+ (Assert (equal (substring string (* 96 k) (* 96 (1+ k))) greek-string))))
+
+ (let ((ascii-string (charset-char-string 'ascii))
+ (string (make-string (* 94 60) (make-char 'greek-iso8859-7 57))))
+ (loop for j from 0 below (length string) do
+ (aset string j (aref ascii-string (mod j 94))))
+ (loop for k in '(0 1 58 59) do
+ (Assert (equal (substring string (* 94 k) (+ 94 (* 94 k))) ascii-string))))
+
+ (let ((ascii-string (charset-char-string 'ascii))
+ (string (make-string (* 94 60) (make-char 'greek-iso8859-7 57))))
+ (loop for j from (1- (length string)) downto 0 do
+ (aset string j (aref ascii-string (mod j 94))))
+ (loop for k in '(0 1 58 59) do
+ (Assert (equal (substring string (* 94 k) (* 94 (1+ k))) ascii-string))))
+