X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-char.lisp;h=2efd4c777e9be862297a2bc836eec086f86570b4;hb=731d5dd65a7b94b5d49d1663d9b60c3a406ce38c;hp=4be9e8376bc3485de4a4570d2f4c4fb111c358fc;hpb=0a535fd0f5db046624b05aa956395d3b502ec927;p=sbcl.git diff --git a/src/code/target-char.lisp b/src/code/target-char.lisp index 4be9e83..2efd4c7 100644 --- a/src/code/target-char.lisp +++ b/src/code/target-char.lisp @@ -32,6 +32,28 @@ (deftype char-code () `(integer 0 (,char-code-limit))) +(defvar *character-database*) +(declaim (type (vector (unsigned-byte 8)) *character-database*)) + +(macrolet ((frob () + (with-open-file (stream (merge-pathnames + (make-pathname + :directory + '(:relative :up :up "output") + :name "ucd" + :type "dat") + sb!xc:*compile-file-truename*) + :direction :input + :element-type '(unsigned-byte 8)) + (let* ((length (file-length stream)) + (array (make-array length + :element-type '(unsigned-byte 8)))) + (read-sequence array stream) + `(defun !character-database-cold-init () + (setq *character-database* ',array)))))) + (frob)) +#+sb-xc-host (!character-database-cold-init) + ;;; This is the alist of (character-name . character) for characters ;;; with long names. The first name in this list for a given character ;;; is used on typeout and is the preferred form for input. @@ -40,8 +62,10 @@ (dolist (code char-names-list) (destructuring-bind (ccode names) code (dolist (name names) - (results (cons name (code-char ccode)))))) - `(defparameter *char-name-alist* ',(results))))) + (results (cons name ccode))))) + `(defparameter *char-name-alist* + (mapcar (lambda (x) (cons (car x) (code-char (cdr x)))) + ',(results)))))) ;; Note: The *** markers here indicate character names which are ;; required by the ANSI specification of #'CHAR-NAME. For the others, ;; we prefer the ASCII standard name. @@ -78,15 +102,76 @@ (#x1E ("Rs" "^^")) (#x1F ("Us" "^_")) (#x20 ("Space" "Sp")) ; *** See Note above. - (#x7f ("Rubout" "Delete" "Del"))))) ; *** See Note above. + (#x7f ("Rubout" "Delete" "Del")) + (#x80 ("C80")) + (#x81 ("C81")) + (#x82 ("Break-Permitted")) + (#x83 ("No-Break-Permitted")) + (#x84 ("C84")) + (#x85 ("Next-Line")) + (#x86 ("Start-Selected-Area")) + (#x87 ("End-Selected-Area")) + (#x88 ("Character-Tabulation-Set")) + (#x89 ("Character-Tabulation-With-Justification")) + (#x8A ("Line-Tabulation-Set")) + (#x8B ("Partial-Line-Forward")) + (#x8C ("Partial-Line-Backward")) + (#x8D ("Reverse-Linefeed")) + (#x8E ("Single-Shift-Two")) + (#x8F ("Single-Shift-Three")) + (#x90 ("Device-Control-String")) + (#x91 ("Private-Use-One")) + (#x92 ("Private-Use-Two")) + (#x93 ("Set-Transmit-State")) + (#x94 ("Cancel-Character")) + (#x95 ("Message-Waiting")) + (#x96 ("Start-Guarded-Area")) + (#x97 ("End-Guarded-Area")) + (#x98 ("Start-String")) + (#x99 ("C99")) + (#x9A ("Single-Character-Introducer")) + (#x9B ("Control-Sequence-Introducer")) + (#x9C ("String-Terminator")) + (#x9D ("Operating-System-Command")) + (#x9E ("Privacy-Message")) + (#x9F ("Application-Program-Command"))))) ; *** See Note above. ;;;; accessor functions +;; (* 8 186) => 1488 +;; (+ 1488 (ash #x110000 -8)) => 5840 +(defun ucd-index (char) + (let* ((cp (char-code char)) + (cp-high (ash cp -8)) + (page (aref *character-database* (+ 1488 cp-high)))) + (+ 5840 (ash page 10) (ash (ldb (byte 8 0) cp) 2)))) + +(defun ucd-value-0 (char) + (aref *character-database* (ucd-index char))) + +(defun ucd-value-1 (char) + (let ((index (ucd-index char))) + (dpb (aref *character-database* (+ index 3)) + (byte 8 16) + (dpb (aref *character-database* (+ index 2)) + (byte 8 8) + (aref *character-database* (1+ index)))))) + +(defun ucd-general-category (char) + (aref *character-database* (* 8 (ucd-value-0 char)))) + +(defun ucd-decimal-digit (char) + (let ((decimal-digit (aref *character-database* + (+ 3 (* 8 (ucd-value-0 char)))))) + (when (< decimal-digit 10) + decimal-digit))) + (defun char-code (char) #!+sb-doc "Return the integer code of CHAR." + ;; FIXME: do we actually need this? (etypecase char - (base-char (char-code (truly-the base-char char))))) + (character (char-code (truly-the character char))))) (defun char-int (char) #!+sb-doc @@ -156,41 +241,34 @@ "The argument must be a character object. GRAPHIC-CHAR-P returns T if the argument is a printing character (space through ~ in ASCII), otherwise returns NIL." - (and (typep char 'base-char) - (< 31 - (char-code (the base-char char)) - 127))) + (let ((n (char-code char))) + (or (< 31 n 127) + (< 159 n)))) (defun alpha-char-p (char) #!+sb-doc "The argument must be a character object. ALPHA-CHAR-P returns T if the argument is an alphabetic character, A-Z or a-z; otherwise NIL." - (let ((m (char-code char))) - (or (< 64 m 91) (< 96 m 123)))) + (< (ucd-general-category char) 5)) (defun upper-case-p (char) #!+sb-doc "The argument must be a character object; UPPER-CASE-P returns T if the argument is an upper-case character, NIL otherwise." - (< 64 - (char-code char) - 91)) + (= (ucd-value-0 char) 0)) (defun lower-case-p (char) #!+sb-doc "The argument must be a character object; LOWER-CASE-P returns T if the argument is a lower-case character, NIL otherwise." - (< 96 - (char-code char) - 123)) + (= (ucd-value-0 char) 1)) (defun both-case-p (char) #!+sb-doc "The argument must be a character object. BOTH-CASE-P returns T if the argument is an alphabetic character and if the character exists in both upper and lower case. For ASCII, this is the same as ALPHA-CHAR-P." - (let ((m (char-code char))) - (or (< 64 m 91) (< 96 m 123)))) + (< (ucd-value-0 char) 2)) (defun digit-char-p (char &optional (radix 10.)) #!+sb-doc @@ -208,21 +286,17 @@ ;; Also check lower case a - z. ((and (>= (setq m (- m 32)) 10) (< m radix)) m) ;; Else, fail. - (t nil)))) - -(defun whitespace-char-p (x) - (and (characterp x) - (or (char= x #\space) - (char= x (code-char tab-char-code)) - (char= x (code-char return-char-code)) - (char= x #\linefeed)))) + (t (let ((number (ucd-decimal-digit char))) + (when (and number (< number radix)) + number)))))) (defun alphanumericp (char) #!+sb-doc "Given a character-object argument, ALPHANUMERICP returns T if the argument is either numeric or alphabetic." - (let ((m (char-code char))) - (or (< 47 m 58) (< 64 m 91) (< 96 m 123)))) + (let ((gc (ucd-general-category char))) + (or (< gc 5) + (= gc 12)))) (defun char= (character &rest more-characters) #!+sb-doc @@ -286,8 +360,11 @@ ;;; which loses font, bits, and case info. (defmacro equal-char-code (character) - `(let ((ch (char-code ,character))) - (if (< 96 ch 123) (- ch 32) ch))) + (let ((ch (gensym))) + `(let ((,ch ,character)) + (if (= (ucd-value-0 ,ch) 0) + (ucd-value-1 ,ch) + (char-code ,ch))))) (defun char-equal (character &rest more-characters) #!+sb-doc @@ -361,16 +438,17 @@ (defun char-upcase (char) #!+sb-doc - "Return CHAR converted to upper-case if that is possible." - (if (lower-case-p char) - (code-char (- (char-code char) 32)) + "Return CHAR converted to upper-case if that is possible. Don't convert + lowercase eszet (U+DF)." + (if (= (ucd-value-0 char) 1) + (code-char (ucd-value-1 char)) char)) (defun char-downcase (char) #!+sb-doc "Return CHAR converted to lower-case if that is possible." - (if (upper-case-p char) - (code-char (+ (char-code char) 32)) + (if (= (ucd-value-0 char) 0) + (code-char (ucd-value-1 char)) char)) (defun digit-char (weight &optional (radix 10))