1 ;;; mule-ccl.el --- CCL (Code Conversion Language) compiler
3 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
4 ;; Licensed to the Free Software Foundation.
6 ;; Keywords: CCL, mule, multilingual, character set, coding-system
8 ;; This file is part of X Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
25 ;; Synched up with: FSF 21.0.90
29 ;; CCL (Code Conversion Language) is a simple programming language to
30 ;; be used for various kind of code conversion. CCL program is
31 ;; compiled to CCL code (vector of integers) and executed by CCL
32 ;; interpreter of Emacs.
34 ;; CCL is used for code conversion at process I/O and file I/O for
35 ;; non-standard coding-system. In addition, it is used for
36 ;; calculating a code point of X's font from a character code.
37 ;; However, since CCL is designed as a powerful programming language,
38 ;; it can be used for more generic calculation. For instance,
39 ;; combination of three or more arithmetic operations can be
40 ;; calculated faster than Emacs Lisp.
42 ;; Syntax and semantics of CCL program is described in the
43 ;; documentation of `define-ccl-program'.
47 (defconst ccl-command-table
48 [if branch loop break repeat write-repeat write-read-repeat
49 read read-if read-branch write call end
50 read-multibyte-character write-multibyte-character
52 iterate-multiple-map map-multiple map-single]
53 "Vector of CCL commands (symbols).")
55 ;; Put a property to each symbol of CCL commands for the compiler.
56 (let (op (i 0) (len (length ccl-command-table)))
58 (setq op (aref ccl-command-table i))
59 (put op 'ccl-compile-function (intern (format "ccl-compile-%s" op)))
62 (defconst ccl-code-table
70 write-register-read-jump
87 set-assign-expr-register
91 jump-cond-expr-register
92 read-jump-cond-expr-const
93 read-jump-cond-expr-register
96 "Vector of CCL compiled codes (symbols).")
98 (defconst ccl-extended-code-table
99 [read-multibyte-character
100 write-multibyte-character
102 translate-character-const-tbl
103 nil nil nil nil nil nil nil nil nil nil nil nil ; 0x04-0x0f
108 "Vector of CCL extended compiled codes (symbols).")
110 ;; Put a property to each symbol of CCL codes for the disassembler.
111 (let (code (i 0) (len (length ccl-code-table)))
113 (setq code (aref ccl-code-table i))
114 (put code 'ccl-code i)
115 (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code)))
118 (let (code (i 0) (len (length ccl-extended-code-table)))
120 (setq code (aref ccl-extended-code-table i))
123 (put code 'ccl-ex-code i)
124 (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code)))))
127 (defconst ccl-jump-code-list
128 '(jump jump-cond write-register-jump write-register-read-jump
129 write-const-jump write-const-read-jump write-string-jump
130 write-array-read-jump read-jump))
132 ;; Put a property `jump-flag' to each CCL code which execute jump in
134 (let ((l ccl-jump-code-list))
136 (put (car l) 'jump-flag t)
139 (defconst ccl-register-table
140 [r0 r1 r2 r3 r4 r5 r6 r7]
141 "Vector of CCL registers (symbols).")
143 ;; Put a property to indicate register number to each symbol of CCL.
145 (let (reg (i 0) (len (length ccl-register-table)))
147 (setq reg (aref ccl-register-table i))
148 (put reg 'ccl-register-number i)
151 (defconst ccl-arith-table
152 [+ - * / % & | ^ << >> <8 >8 // nil nil nil
153 < > == <= >= != de-sjis en-sjis]
154 "Vector of CCL arithmetic/logical operators (symbols).")
156 ;; Put a property to each symbol of CCL operators for the compiler.
157 (let (arith (i 0) (len (length ccl-arith-table)))
159 (setq arith (aref ccl-arith-table i))
160 (if arith (put arith 'ccl-arith-code i))
163 (defconst ccl-assign-arith-table
164 [+= -= *= /= %= &= |= ^= <<= >>= <8= >8= //=]
165 "Vector of CCL assignment operators (symbols).")
167 ;; Put a property to each symbol of CCL assignment operators for the compiler.
168 (let (arith (i 0) (len (length ccl-assign-arith-table)))
170 (setq arith (aref ccl-assign-arith-table i))
171 (put arith 'ccl-self-arith-code i)
174 (defvar ccl-program-vector nil
175 "Working vector of CCL codes produced by CCL compiler.")
176 (defvar ccl-current-ic 0
177 "The current index for `ccl-program-vector'.")
179 ;; Embed integer DATA in `ccl-program-vector' at `ccl-current-ic' and
180 ;; increment it. If IC is specified, embed DATA at IC.
181 (defun ccl-embed-data (data &optional ic)
182 (if (characterp data)
183 (setq data (char-int data)))
185 (aset ccl-program-vector ic data)
186 (let ((len (length ccl-program-vector)))
187 (if (>= ccl-current-ic len)
188 (let ((new (make-vector (* len 2) nil)))
191 (aset new len (aref ccl-program-vector len)))
192 (setq ccl-program-vector new))))
193 (aset ccl-program-vector ccl-current-ic data)
194 (setq ccl-current-ic (1+ ccl-current-ic))))
196 ;; Embed pair of SYMBOL and PROP where (get SYMBOL PROP) should give
197 ;; proper index number for SYMBOL. PROP should be
198 ;; `translation-table-id', `code-conversion-map-id', or
199 ;; `ccl-program-idx'.
200 (defun ccl-embed-symbol (symbol prop)
201 (ccl-embed-data (cons symbol prop)))
203 ;; Embed string STR of length LEN in `ccl-program-vector' at
205 (defun ccl-embed-string (len str)
208 (ccl-embed-data (logior (ash (aref str i) 16)
210 (ash (aref str (1+ i)) 8)
217 ;; Embed a relative jump address to `ccl-current-ic' in
218 ;; `ccl-program-vector' at IC without altering the other bit field.
219 (defun ccl-embed-current-address (ic)
220 (let ((relative (- ccl-current-ic (1+ ic))))
221 (aset ccl-program-vector ic
222 (logior (aref ccl-program-vector ic) (ash relative 8)))))
224 ;; Embed CCL code for the operation OP and arguments REG and DATA in
225 ;; `ccl-program-vector' at `ccl-current-ic' in the following format.
226 ;; |----------------- integer (28-bit) ------------------|
227 ;; |------------ 20-bit ------------|- 3-bit --|- 5-bit -|
228 ;; |------------- DATA -------------|-- REG ---|-- OP ---|
229 ;; If REG2 is specified, embed a code in the following format.
230 ;; |------- 17-bit ------|- 3-bit --|- 3-bit --|- 5-bit -|
231 ;; |-------- DATA -------|-- REG2 --|-- REG ---|-- OP ---|
233 ;; If REG is a CCL register symbol (e.g. r0, r1...), the register
234 ;; number is embedded. If OP is one of unconditional jumps, DATA is
235 ;; changed to an relative jump address.
237 (defun ccl-embed-code (op reg data &optional reg2)
238 (if (and (> data 0) (get op 'jump-flag))
239 ;; DATA is an absolute jump address. Make it relative to the
240 ;; next of jump code.
241 (setq data (- data (1+ ccl-current-ic))))
242 (let ((code (logior (get op 'ccl-code)
244 (if (symbolp reg) (get reg 'ccl-register-number) reg) 5)
246 (logior (ash (get reg2 'ccl-register-number) 8)
249 (ccl-embed-data code)))
251 ;; extended ccl command format
252 ;; |- 14-bit -|- 3-bit --|- 3-bit --|- 3-bit --|- 5-bit -|
253 ;; |- EX-OP --|-- REG3 --|-- REG2 --|-- REG ---|-- OP ---|
254 (defun ccl-embed-extended-command (ex-op reg reg2 reg3)
255 (let ((data (logior (ash (get ex-op 'ccl-ex-code) 3)
257 (get reg3 'ccl-register-number)
259 (ccl-embed-code 'ex-cmd reg data reg2)))
261 ;; Just advance `ccl-current-ic' by INC.
262 (defun ccl-increment-ic (inc)
263 (setq ccl-current-ic (+ ccl-current-ic inc)))
265 ;; If non-nil, index of the start of the current loop.
266 (defvar ccl-loop-head nil)
267 ;; If non-nil, list of absolute addresses of the breaking points of
269 (defvar ccl-breaks nil)
272 (defun ccl-compile (ccl-program)
273 "Return a compiled code of CCL-PROGRAM as a vector of integer."
274 (if (or (null (consp ccl-program))
275 (null (integerp (car ccl-program)))
276 (null (listp (car (cdr ccl-program)))))
277 (error "CCL: Invalid CCL program: %s" ccl-program))
278 (if (null (vectorp ccl-program-vector))
279 (setq ccl-program-vector (make-vector 8192 0)))
280 (setq ccl-loop-head nil ccl-breaks nil)
281 (setq ccl-current-ic 0)
283 ;; The first element is the buffer magnification.
284 (ccl-embed-data (car ccl-program))
286 ;; The second element is the address of the start CCL code for
287 ;; processing end of input buffer (we call it eof-processor). We
291 ;; Compile the main body of the CCL program.
292 (ccl-compile-1 (car (cdr ccl-program)))
294 ;; Embed the address of eof-processor.
295 (ccl-embed-data ccl-current-ic 1)
297 ;; Then compile eof-processor.
298 (if (nth 2 ccl-program)
299 (ccl-compile-1 (nth 2 ccl-program)))
301 ;; At last, embed termination code.
302 (ccl-embed-code 'end 0 0)
304 (let ((vec (make-vector ccl-current-ic 0))
306 (while (< i ccl-current-ic)
307 (aset vec i (aref ccl-program-vector i))
311 ;; Signal syntax error.
312 (defun ccl-syntax-error (cmd)
313 (error "CCL: Syntax error: %s" cmd))
315 ;; Check if ARG is a valid CCL register.
316 (defun ccl-check-register (arg cmd)
317 (if (get arg 'ccl-register-number)
319 (error "CCL: Invalid register %s in %s." arg cmd)))
321 ;; Check if ARG is a valid CCL command.
322 (defun ccl-check-compile-function (arg cmd)
323 (or (get arg 'ccl-compile-function)
324 (error "CCL: Invalid command: %s" cmd)))
326 ;; In the following code, most ccl-compile-XXXX functions return t if
327 ;; they end with unconditional jump, else return nil.
329 ;; Compile CCL-BLOCK (see the syntax above).
330 (defun ccl-compile-1 (ccl-block)
331 (let (unconditional-jump
333 (if (or (integer-or-char-p ccl-block)
335 (and ccl-block (symbolp (car ccl-block))))
336 ;; This block consists of single statement.
337 (setq ccl-block (list ccl-block)))
339 ;; Now CCL-BLOCK is a list of statements. Compile them one by
342 (setq cmd (car ccl-block))
343 (setq unconditional-jump
344 (cond ((integer-or-char-p cmd)
345 ;; SET statement for the register 0.
346 (ccl-compile-set (list 'r0 '= cmd)))
349 ;; WRITE statement of string argument.
350 (ccl-compile-write-string cmd))
353 ;; The other statements.
354 (cond ((eq (nth 1 cmd) '=)
355 ;; SET statement of the form `(REG = EXPRESSION)'.
356 (ccl-compile-set cmd))
358 ((and (symbolp (nth 1 cmd))
359 (get (nth 1 cmd) 'ccl-self-arith-code))
360 ;; SET statement with an assignment operation.
361 (ccl-compile-self-set cmd))
364 (funcall (ccl-check-compile-function (car cmd) cmd)
368 (ccl-syntax-error cmd))))
369 (setq ccl-block (cdr ccl-block)))
372 (defconst ccl-max-short-const (ash 1 19))
373 (defconst ccl-min-short-const (ash -1 19))
375 ;; Compile SET statement.
376 (defun ccl-compile-set (cmd)
377 (let ((rrr (ccl-check-register (car cmd) cmd))
380 ;; CMD has the form `(RRR = (XXX OP YYY))'.
381 (ccl-compile-expression rrr right))
383 ((integer-or-char-p right)
384 ;; CMD has the form `(RRR = integer)'.
385 (if (and (<= right ccl-max-short-const)
386 (>= right ccl-min-short-const))
387 (ccl-embed-code 'set-short-const rrr right)
388 (ccl-embed-code 'set-const rrr 0)
389 (ccl-embed-data right)))
392 ;; CMD has the form `(RRR = rrr [ array ])'.
393 (ccl-check-register right cmd)
394 (let ((ary (nth 3 cmd)))
396 (let ((i 0) (len (length ary)))
397 (ccl-embed-code 'set-array rrr len right)
399 (ccl-embed-data (aref ary i))
401 (ccl-embed-code 'set-register rrr 0 right))))))
404 ;; Compile SET statement with ASSIGNMENT_OPERATOR.
405 (defun ccl-compile-self-set (cmd)
406 (let ((rrr (ccl-check-register (car cmd) cmd))
409 ;; CMD has the form `(RRR ASSIGN_OP (XXX OP YYY))', compile
410 ;; the right hand part as `(r7 = (XXX OP YYY))' (note: the
411 ;; register 7 can be used for storing temporary value).
413 (ccl-compile-expression 'r7 right)
415 ;; Now CMD has the form `(RRR ASSIGN_OP ARG)'. Compile it as
416 ;; `(RRR = (RRR OP ARG))'.
417 (ccl-compile-expression
419 (list rrr (intern (substring (symbol-name (nth 1 cmd)) 0 -1)) right)))
422 ;; Compile SET statement of the form `(RRR = EXPR)'.
423 (defun ccl-compile-expression (rrr expr)
424 (let ((left (car expr))
425 (op (get (nth 1 expr) 'ccl-arith-code))
426 (right (nth 2 expr)))
429 ;; EXPR has the form `((EXPR2 OP2 ARG) OP RIGHT)'. Compile
430 ;; the first term as `(r7 = (EXPR2 OP2 ARG)).'
431 (ccl-compile-expression 'r7 left)
434 ;; Now EXPR has the form (LEFT OP RIGHT).
435 (if (and (eq rrr left)
436 (< op (length ccl-assign-arith-table)))
437 ;; Compile this SET statement as `(RRR OP= RIGHT)'.
438 (if (integer-or-char-p right)
440 (ccl-embed-code 'set-assign-expr-const rrr (ash op 3) 'r0)
441 (ccl-embed-data right))
442 (ccl-check-register right expr)
443 (ccl-embed-code 'set-assign-expr-register rrr (ash op 3) right))
445 ;; Compile this SET statement as `(RRR = (LEFT OP RIGHT))'.
446 (if (integer-or-char-p right)
448 (ccl-embed-code 'set-expr-const rrr (ash op 3) left)
449 (ccl-embed-data right))
450 (ccl-check-register right expr)
451 (ccl-embed-code 'set-expr-register
453 (logior (ash op 3) (get right 'ccl-register-number))
456 ;; Compile WRITE statement with string argument.
457 (defun ccl-compile-write-string (str)
458 (setq str (encode-coding-string str 'binary))
459 (let ((len (length str)))
460 (ccl-embed-code 'write-const-string 1 len)
461 (ccl-embed-string len str))
464 ;; Compile IF statement of the form `(if CONDITION TRUE-PART FALSE-PART)'.
465 ;; If READ-FLAG is non-nil, this statement has the form
466 ;; `(read-if (REG OPERATOR ARG) TRUE-PART FALSE-PART)'.
467 (defun ccl-compile-if (cmd &optional read-flag)
468 (if (and (/= (length cmd) 3) (/= (length cmd) 4))
469 (error "CCL: Invalid number of arguments: %s" cmd))
470 (let ((condition (nth 1 cmd))
471 (true-cmds (nth 2 cmd))
472 (false-cmds (nth 3 cmd))
475 (if (and (listp condition)
476 (listp (car condition)))
477 ;; If CONDITION is a nested expression, the inner expression
478 ;; should be compiled at first as SET statement, i.e.:
479 ;; `(if ((X OP2 Y) OP Z) ...)' is compiled into two statements:
480 ;; `(r7 = (X OP2 Y)) (if (r7 OP Z) ...)'.
482 (ccl-compile-expression 'r7 (car condition))
483 (setq condition (cons 'r7 (cdr condition)))
484 (setq cmd (cons (car cmd)
485 (cons condition (cdr (cdr cmd)))))))
487 (setq jump-cond-address ccl-current-ic)
488 ;; Compile CONDITION.
489 (if (symbolp condition)
490 ;; CONDITION is a register.
492 (ccl-check-register condition cmd)
493 (ccl-embed-code 'jump-cond condition 0))
494 ;; CONDITION is a simple expression of the form (RRR OP ARG).
495 (let ((rrr (car condition))
496 (op (get (nth 1 condition) 'ccl-arith-code))
497 (arg (nth 2 condition)))
498 (ccl-check-register rrr cmd)
499 (if (integer-or-char-p arg)
501 (ccl-embed-code (if read-flag 'read-jump-cond-expr-const
502 'jump-cond-expr-const)
505 (ccl-embed-data arg))
506 (ccl-check-register arg cmd)
507 (ccl-embed-code (if read-flag 'read-jump-cond-expr-register
508 'jump-cond-expr-register)
511 (ccl-embed-data (get arg 'ccl-register-number)))))
513 ;; Compile TRUE-PART.
514 (let ((unconditional-jump (ccl-compile-1 true-cmds)))
515 (if (null false-cmds)
516 ;; This is the place to jump to if condition is false.
518 (ccl-embed-current-address jump-cond-address)
519 (setq unconditional-jump nil))
520 (let (end-true-part-address)
521 (if (not unconditional-jump)
523 ;; If TRUE-PART does not end with unconditional jump, we
524 ;; have to jump to the end of FALSE-PART from here.
525 (setq end-true-part-address ccl-current-ic)
526 (ccl-embed-code 'jump 0 0)))
527 ;; This is the place to jump to if CONDITION is false.
528 (ccl-embed-current-address jump-cond-address)
529 ;; Compile FALSE-PART.
530 (setq unconditional-jump
531 (and (ccl-compile-1 false-cmds) unconditional-jump))
532 (if end-true-part-address
533 ;; This is the place to jump to after the end of TRUE-PART.
534 (ccl-embed-current-address end-true-part-address))))
535 unconditional-jump)))
537 ;; Compile BRANCH statement.
538 (defun ccl-compile-branch (cmd)
539 (if (< (length cmd) 3)
540 (error "CCL: Invalid number of arguments: %s" cmd))
541 (ccl-compile-branch-blocks 'branch
542 (ccl-compile-branch-expression (nth 1 cmd) cmd)
545 ;; Compile READ statement of the form `(read-branch EXPR BLOCK0 BLOCK1 ...)'.
546 (defun ccl-compile-read-branch (cmd)
547 (if (< (length cmd) 3)
548 (error "CCL: Invalid number of arguments: %s" cmd))
549 (ccl-compile-branch-blocks 'read-branch
550 (ccl-compile-branch-expression (nth 1 cmd) cmd)
553 ;; Compile EXPRESSION part of BRANCH statement and return register
554 ;; which holds a value of the expression.
555 (defun ccl-compile-branch-expression (expr cmd)
557 ;; EXPR has the form `(EXPR2 OP ARG)'. Compile it as SET
558 ;; statement of the form `(r7 = (EXPR2 OP ARG))'.
560 (ccl-compile-expression 'r7 expr)
562 (ccl-check-register expr cmd)))
564 ;; Compile BLOCKs of BRANCH statement. CODE is 'branch or 'read-branch.
565 ;; REG is a register which holds a value of EXPRESSION part. BLOCKs
566 ;; is a list of CCL-BLOCKs.
567 (defun ccl-compile-branch-blocks (code rrr blocks)
568 (let ((branches (length blocks))
570 jump-table-head-address
573 block-unconditional-jump)
574 (ccl-embed-code code rrr branches)
575 (setq jump-table-head-address ccl-current-ic)
576 ;; The size of jump table is the number of blocks plus 1 (for the
577 ;; case RRR is out of range).
578 (ccl-increment-ic (1+ branches))
579 (setq empty-block-indexes (list branches))
580 ;; Compile each block.
583 (if (null (car blocks))
584 ;; This block is empty.
585 (setq empty-block-indexes (cons branch-idx empty-block-indexes)
586 block-unconditional-jump t)
587 ;; This block is not empty.
588 (ccl-embed-data (- ccl-current-ic jump-table-head-address)
589 (+ jump-table-head-address branch-idx))
590 (setq block-unconditional-jump (ccl-compile-1 (car blocks)))
591 (if (not block-unconditional-jump)
593 ;; Jump address of the end of branches are embedded later.
594 ;; For the moment, just remember where to embed them.
595 (setq block-tail-addresses
596 (cons ccl-current-ic block-tail-addresses))
597 (ccl-embed-code 'jump 0 0))))
598 (setq branch-idx (1+ branch-idx))
599 (setq blocks (cdr blocks)))
600 (if (not block-unconditional-jump)
601 ;; We don't need jump code at the end of the last block.
602 (setq block-tail-addresses (cdr block-tail-addresses)
603 ccl-current-ic (1- ccl-current-ic)))
604 ;; Embed jump address at the tailing jump commands of blocks.
605 (while block-tail-addresses
606 (ccl-embed-current-address (car block-tail-addresses))
607 (setq block-tail-addresses (cdr block-tail-addresses)))
608 ;; For empty blocks, make entries in the jump table point directly here.
609 (while empty-block-indexes
610 (ccl-embed-data (- ccl-current-ic jump-table-head-address)
611 (+ jump-table-head-address (car empty-block-indexes)))
612 (setq empty-block-indexes (cdr empty-block-indexes))))
613 ;; Branch command ends by unconditional jump if RRR is out of range.
616 ;; Compile LOOP statement.
617 (defun ccl-compile-loop (cmd)
618 (if (< (length cmd) 2)
619 (error "CCL: Invalid number of arguments: %s" cmd))
620 (let* ((ccl-loop-head ccl-current-ic)
626 (setq unconditional-jump t)
628 (setq unconditional-jump
629 (and (ccl-compile-1 (car cmd)) unconditional-jump))
630 (setq cmd (cdr cmd)))
633 ;; Embed jump address for break statements encountered in
636 (ccl-embed-current-address (car ccl-breaks))
637 (setq ccl-breaks (cdr ccl-breaks))))
640 ;; Compile BREAK statement.
641 (defun ccl-compile-break (cmd)
642 (if (/= (length cmd) 1)
643 (error "CCL: Invalid number of arguments: %s" cmd))
644 (if (null ccl-loop-head)
645 (error "CCL: No outer loop: %s" cmd))
646 (setq ccl-breaks (cons ccl-current-ic ccl-breaks))
647 (ccl-embed-code 'jump 0 0)
650 ;; Compile REPEAT statement.
651 (defun ccl-compile-repeat (cmd)
652 (if (/= (length cmd) 1)
653 (error "CCL: Invalid number of arguments: %s" cmd))
654 (if (null ccl-loop-head)
655 (error "CCL: No outer loop: %s" cmd))
656 (ccl-embed-code 'jump 0 ccl-loop-head)
659 ;; Compile WRITE-REPEAT statement.
660 (defun ccl-compile-write-repeat (cmd)
661 (if (/= (length cmd) 2)
662 (error "CCL: Invalid number of arguments: %s" cmd))
663 (if (null ccl-loop-head)
664 (error "CCL: No outer loop: %s" cmd))
665 (let ((arg (nth 1 cmd)))
666 (cond ((integer-or-char-p arg)
667 (ccl-embed-code 'write-const-jump 0 ccl-loop-head)
668 (ccl-embed-data arg))
670 (setq arg (encode-coding-string arg 'binary))
671 (let ((len (length arg))
673 (ccl-embed-code 'write-string-jump 0 ccl-loop-head)
675 (ccl-embed-string len arg)))
677 (ccl-check-register arg cmd)
678 (ccl-embed-code 'write-register-jump arg ccl-loop-head))))
681 ;; Compile WRITE-READ-REPEAT statement.
682 (defun ccl-compile-write-read-repeat (cmd)
683 (if (or (< (length cmd) 2) (> (length cmd) 3))
684 (error "CCL: Invalid number of arguments: %s" cmd))
685 (if (null ccl-loop-head)
686 (error "CCL: No outer loop: %s" cmd))
687 (let ((rrr (ccl-check-register (nth 1 cmd) cmd))
690 (ccl-embed-code 'write-register-read-jump rrr ccl-loop-head))
691 ((integer-or-char-p arg)
692 (ccl-embed-code 'write-const-read-jump rrr arg ccl-loop-head))
694 (let ((len (length arg))
696 (ccl-embed-code 'write-array-read-jump rrr ccl-loop-head)
699 (ccl-embed-data (aref arg i))
702 (error "CCL: Invalid argument %s: %s" arg cmd)))
703 (ccl-embed-code 'read-jump rrr ccl-loop-head))
706 ;; Compile READ statement.
707 (defun ccl-compile-read (cmd)
708 (if (< (length cmd) 2)
709 (error "CCL: Invalid number of arguments: %s" cmd))
710 (let* ((args (cdr cmd))
711 (i (1- (length args))))
713 (let ((rrr (ccl-check-register (car args) cmd)))
714 (ccl-embed-code 'read-register rrr i)
715 (setq args (cdr args) i (1- i)))))
718 ;; Compile READ-IF statement.
719 (defun ccl-compile-read-if (cmd)
720 (ccl-compile-if cmd 'read))
722 ;; Compile WRITE statement.
723 (defun ccl-compile-write (cmd)
724 (if (< (length cmd) 2)
725 (error "CCL: Invalid number of arguments: %s" cmd))
726 (let ((rrr (nth 1 cmd)))
727 (cond ((integer-or-char-p rrr)
728 (ccl-embed-code 'write-const-string 0 rrr))
730 (ccl-compile-write-string rrr))
731 ((and (symbolp rrr) (vectorp (nth 2 cmd)))
732 (ccl-check-register rrr cmd)
733 ;; CMD has the form `(write REG ARRAY)'.
734 (let* ((arg (nth 2 cmd))
737 (ccl-embed-code 'write-array rrr len)
739 (if (not (integer-or-char-p (aref arg i)))
740 (error "CCL: Invalid argument %s: %s" arg cmd))
741 (ccl-embed-data (aref arg i))
745 ;; CMD has the form `(write REG ...)'.
746 (let* ((args (cdr cmd))
747 (i (1- (length args))))
749 (setq rrr (ccl-check-register (car args) cmd))
750 (ccl-embed-code 'write-register rrr i)
751 (setq args (cdr args) i (1- i)))))
754 ;; CMD has the form `(write (LEFT OP RIGHT))'.
755 (let ((left (car rrr))
756 (op (get (nth 1 rrr) 'ccl-arith-code))
760 ;; RRR has the form `((EXPR OP2 ARG) OP RIGHT)'.
761 ;; Compile the first term as `(r7 = (EXPR OP2 ARG))'.
762 (ccl-compile-expression 'r7 left)
764 ;; Now RRR has the form `(ARG OP RIGHT)'.
765 (if (integer-or-char-p right)
767 (ccl-embed-code 'write-expr-const 0 (ash op 3) left)
768 (ccl-embed-data right))
769 (ccl-check-register right rrr)
770 (ccl-embed-code 'write-expr-register 0
772 (get right 'ccl-register-number))))))
775 (error "CCL: Invalid argument: %s" cmd))))
778 ;; Compile CALL statement.
779 (defun ccl-compile-call (cmd)
780 (if (/= (length cmd) 2)
781 (error "CCL: Invalid number of arguments: %s" cmd))
782 (if (not (symbolp (nth 1 cmd)))
783 (error "CCL: Subroutine should be a symbol: %s" cmd))
784 (ccl-embed-code 'call 1 0)
785 (ccl-embed-symbol (nth 1 cmd) 'ccl-program-idx)
788 ;; Compile END statement.
789 (defun ccl-compile-end (cmd)
790 (if (/= (length cmd) 1)
791 (error "CCL: Invalid number of arguments: %s" cmd))
792 (ccl-embed-code 'end 0 0)
795 ;; Compile read-multibyte-character
796 (defun ccl-compile-read-multibyte-character (cmd)
797 (if (/= (length cmd) 3)
798 (error "CCL: Invalid number of arguments: %s" cmd))
799 (let ((RRR (nth 1 cmd))
801 (ccl-check-register rrr cmd)
802 (ccl-check-register RRR cmd)
803 (ccl-embed-extended-command 'read-multibyte-character rrr RRR 0))
806 ;; Compile write-multibyte-character
807 (defun ccl-compile-write-multibyte-character (cmd)
808 (if (/= (length cmd) 3)
809 (error "CCL: Invalid number of arguments: %s" cmd))
810 (let ((RRR (nth 1 cmd))
812 (ccl-check-register rrr cmd)
813 (ccl-check-register RRR cmd)
814 (ccl-embed-extended-command 'write-multibyte-character rrr RRR 0))
817 ;; Compile translate-character
818 (defun ccl-compile-translate-character (cmd)
819 (if (/= (length cmd) 4)
820 (error "CCL: Invalid number of arguments: %s" cmd))
821 (let ((Rrr (nth 1 cmd))
824 (ccl-check-register rrr cmd)
825 (ccl-check-register RRR cmd)
826 (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number)))
827 (ccl-embed-extended-command 'translate-character-const-tbl
829 (ccl-embed-symbol Rrr 'translation-table-id))
831 (ccl-check-register Rrr cmd)
832 (ccl-embed-extended-command 'translate-character rrr RRR Rrr))))
835 (defun ccl-compile-iterate-multiple-map (cmd)
836 (ccl-compile-multiple-map-function 'iterate-multiple-map cmd)
839 (defun ccl-compile-map-multiple (cmd)
840 (if (/= (length cmd) 4)
841 (error "CCL: Invalid number of arguments: %s" cmd))
845 (let ((len 0) result add)
847 (if (consp (car arg))
848 (setq add (funcall func (car arg) t)
849 result (append result add)
850 add (+ (- (car add)) 1))
858 (cons (- len) result)
860 (setq arg (append (list (nth 0 cmd) (nth 1 cmd) (nth 2 cmd))
861 (funcall func (nth 3 cmd) nil)))
862 (ccl-compile-multiple-map-function 'map-multiple arg))
865 (defun ccl-compile-map-single (cmd)
866 (if (/= (length cmd) 4)
867 (error "CCL: Invalid number of arguments: %s" cmd))
868 (let ((RRR (nth 1 cmd))
872 (ccl-check-register rrr cmd)
873 (ccl-check-register RRR cmd)
874 (ccl-embed-extended-command 'map-single rrr RRR 0)
876 (if (get map 'code-conversion-map)
877 (ccl-embed-symbol map 'code-conversion-map-id)
878 (error "CCL: Invalid map: %s" map)))
880 (error "CCL: Invalid type of arguments: %s" cmd))))
883 (defun ccl-compile-multiple-map-function (command cmd)
884 (if (< (length cmd) 4)
885 (error "CCL: Invalid number of arguments: %s" cmd))
886 (let ((RRR (nth 1 cmd))
888 (args (nthcdr 3 cmd))
890 (ccl-check-register rrr cmd)
891 (ccl-check-register RRR cmd)
892 (ccl-embed-extended-command command rrr RRR 0)
893 (ccl-embed-data (length args))
895 (setq map (car args))
897 (if (get map 'code-conversion-map)
898 (ccl-embed-symbol map 'code-conversion-map-id)
899 (error "CCL: Invalid map: %s" map)))
901 (ccl-embed-data map))
903 (error "CCL: Invalid type of arguments: %s" cmd)))
904 (setq args (cdr args)))))
909 ;; To avoid byte-compiler warning.
913 (defun ccl-dump (ccl-code)
914 "Disassemble compiled CCL-CODE."
915 (let ((len (length ccl-code))
916 (buffer-mag (aref ccl-code 0)))
917 (cond ((= buffer-mag 0)
918 (insert "Don't output anything.\n"))
920 (insert "Out-buffer must be as large as in-buffer.\n"))
923 (format "Out-buffer must be %d times bigger than in-buffer.\n"
925 (insert "Main-body:\n")
926 (setq ccl-current-ic 2)
927 (if (> (aref ccl-code 1) 0)
929 (while (< ccl-current-ic (aref ccl-code 1))
931 (insert "At EOF:\n")))
932 (while (< ccl-current-ic len)
936 ;; Return a CCL code in `ccl-code' at `ccl-current-ic'.
937 (defun ccl-get-next-code ()
939 (aref ccl-code ccl-current-ic)
940 (setq ccl-current-ic (1+ ccl-current-ic))))
943 (let* ((code (ccl-get-next-code))
944 (cmd (aref ccl-code-table (logand code 31)))
945 (rrr (ash (logand code 255) -5))
947 (insert (format "%5d:[%s] " (1- ccl-current-ic) cmd))
948 (funcall (get cmd 'ccl-dump-function) rrr cc)))
950 (defun ccl-dump-set-register (rrr cc)
951 (insert (format "r%d = r%d\n" rrr cc)))
953 (defun ccl-dump-set-short-const (rrr cc)
954 (insert (format "r%d = %d\n" rrr cc)))
956 (defun ccl-dump-set-const (rrr ignore)
957 (insert (format "r%d = %d\n" rrr (ccl-get-next-code))))
959 (defun ccl-dump-set-array (rrr cc)
960 (let ((rrr2 (logand cc 7))
963 (insert (format "r%d = array[r%d] of length %d\n\t"
966 (insert (format "%d " (ccl-get-next-code)))
970 (defun ccl-dump-jump (ignore cc &optional address)
971 (insert (format "jump to %d(" (+ (or address ccl-current-ic) cc)))
974 (insert (format "%d)\n" (1+ cc))))
976 (defun ccl-dump-jump-cond (rrr cc)
977 (insert (format "if (r%d == 0), " rrr))
978 (ccl-dump-jump nil cc))
980 (defun ccl-dump-write-register-jump (rrr cc)
981 (insert (format "write r%d, " rrr))
982 (ccl-dump-jump nil cc))
984 (defun ccl-dump-write-register-read-jump (rrr cc)
985 (insert (format "write r%d, read r%d, " rrr rrr))
986 (ccl-dump-jump nil cc)
987 (ccl-get-next-code) ; Skip dummy READ-JUMP
990 (defun ccl-extract-arith-op (cc)
991 (aref ccl-arith-table (ash cc -6)))
993 (defun ccl-dump-write-expr-const (ignore cc)
994 (insert (format "write (r%d %s %d)\n"
996 (ccl-extract-arith-op cc)
997 (ccl-get-next-code))))
999 (defun ccl-dump-write-expr-register (ignore cc)
1000 (insert (format "write (r%d %s r%d)\n"
1002 (ccl-extract-arith-op cc)
1003 (logand (ash cc -3) 7))))
1005 (defun ccl-dump-insert-char (cc)
1006 (cond ((= cc ?\t) (insert " \"^I\""))
1007 ((= cc ?\n) (insert " \"^J\""))
1008 (t (insert (format " \"%c\"" cc)))))
1010 (defun ccl-dump-write-const-jump (ignore cc)
1011 (let ((address ccl-current-ic))
1012 (insert "write char")
1013 (ccl-dump-insert-char (ccl-get-next-code))
1015 (ccl-dump-jump nil cc address)))
1017 (defun ccl-dump-write-const-read-jump (rrr cc)
1018 (let ((address ccl-current-ic))
1019 (insert "write char")
1020 (ccl-dump-insert-char (ccl-get-next-code))
1021 (insert (format ", read r%d, " rrr))
1022 (ccl-dump-jump cc address)
1023 (ccl-get-next-code) ; Skip dummy READ-JUMP
1026 (defun ccl-dump-write-string-jump (ignore cc)
1027 (let ((address ccl-current-ic)
1028 (len (ccl-get-next-code))
1032 (let ((code (ccl-get-next-code)))
1033 (insert (ash code -16))
1034 (if (< (1+ i) len) (insert (logand (ash code -8) 255)))
1035 (if (< (+ i 2) len) (insert (logand code 255))))
1038 (ccl-dump-jump nil cc address)))
1040 (defun ccl-dump-write-array-read-jump (rrr cc)
1041 (let ((address ccl-current-ic)
1042 (len (ccl-get-next-code))
1044 (insert (format "write array[r%d] of length %d,\n\t" rrr len))
1046 (ccl-dump-insert-char (ccl-get-next-code))
1048 (insert (format "\n\tthen read r%d, " rrr))
1049 (ccl-dump-jump nil cc address)
1050 (ccl-get-next-code) ; Skip dummy READ-JUMP.
1053 (defun ccl-dump-read-jump (rrr cc)
1054 (insert (format "read r%d, " rrr))
1055 (ccl-dump-jump nil cc))
1057 (defun ccl-dump-branch (rrr len)
1058 (let ((jump-table-head ccl-current-ic)
1060 (insert (format "jump to array[r%d] of length %d\n\t" rrr len))
1062 (insert (format "%d " (+ jump-table-head (ccl-get-next-code))))
1066 (defun ccl-dump-read-register (rrr cc)
1067 (insert (format "read r%d (%d remaining)\n" rrr cc)))
1069 (defun ccl-dump-read-branch (rrr len)
1070 (insert (format "read r%d, " rrr))
1071 (ccl-dump-branch rrr len))
1073 (defun ccl-dump-write-register (rrr cc)
1074 (insert (format "write r%d (%d remaining)\n" rrr cc)))
1076 (defun ccl-dump-call (ignore cc)
1077 (insert (format "call subroutine #%d\n" cc)))
1079 (defun ccl-dump-write-const-string (rrr cc)
1082 (insert "write char")
1083 (ccl-dump-insert-char cc)
1089 (let ((code (ccl-get-next-code)))
1090 (insert (format "%c" (lsh code -16)))
1092 (insert (format "%c" (logand (lsh code -8) 255))))
1094 (insert (format "%c" (logand code 255))))
1098 (defun ccl-dump-write-array (rrr cc)
1100 (insert (format "write array[r%d] of length %d\n\t" rrr cc))
1102 (ccl-dump-insert-char (ccl-get-next-code))
1106 (defun ccl-dump-end (&rest ignore)
1109 (defun ccl-dump-set-assign-expr-const (rrr cc)
1110 (insert (format "r%d %s= %d\n"
1112 (ccl-extract-arith-op cc)
1113 (ccl-get-next-code))))
1115 (defun ccl-dump-set-assign-expr-register (rrr cc)
1116 (insert (format "r%d %s= r%d\n"
1118 (ccl-extract-arith-op cc)
1121 (defun ccl-dump-set-expr-const (rrr cc)
1122 (insert (format "r%d = r%d %s %d\n"
1125 (ccl-extract-arith-op cc)
1126 (ccl-get-next-code))))
1128 (defun ccl-dump-set-expr-register (rrr cc)
1129 (insert (format "r%d = r%d %s r%d\n"
1132 (ccl-extract-arith-op cc)
1133 (logand (ash cc -3) 7))))
1135 (defun ccl-dump-jump-cond-expr-const (rrr cc)
1136 (let ((address ccl-current-ic))
1137 (insert (format "if !(r%d %s %d), "
1139 (aref ccl-arith-table (ccl-get-next-code))
1140 (ccl-get-next-code)))
1141 (ccl-dump-jump nil cc address)))
1143 (defun ccl-dump-jump-cond-expr-register (rrr cc)
1144 (let ((address ccl-current-ic))
1145 (insert (format "if !(r%d %s r%d), "
1147 (aref ccl-arith-table (ccl-get-next-code))
1148 (ccl-get-next-code)))
1149 (ccl-dump-jump nil cc address)))
1151 (defun ccl-dump-read-jump-cond-expr-const (rrr cc)
1152 (insert (format "read r%d, " rrr))
1153 (ccl-dump-jump-cond-expr-const rrr cc))
1155 (defun ccl-dump-read-jump-cond-expr-register (rrr cc)
1156 (insert (format "read r%d, " rrr))
1157 (ccl-dump-jump-cond-expr-register rrr cc))
1159 (defun ccl-dump-binary (ccl-code)
1160 (let ((len (length ccl-code))
1163 (let ((code (aref ccl-code i))
1166 (insert (if (= (logand code (ash 1 j)) 0) ?0 ?1))
1168 (setq code (logand code 31))
1169 (if (< code (length ccl-code-table))
1170 (insert (format ":%s" (aref ccl-code-table code))))
1174 (defun ccl-dump-ex-cmd (rrr cc)
1175 (let* ((RRR (logand cc ?\x7))
1176 (Rrr (logand (ash cc -3) ?\x7))
1177 (ex-op (aref ccl-extended-code-table (logand (ash cc -6) ?\x3fff))))
1178 (insert (format "<%s> " ex-op))
1179 (funcall (get ex-op 'ccl-dump-function) rrr RRR Rrr)))
1181 (defun ccl-dump-read-multibyte-character (rrr RRR Rrr)
1182 (insert (format "read-multibyte-character r%d r%d\n" RRR rrr)))
1184 (defun ccl-dump-write-multibyte-character (rrr RRR Rrr)
1185 (insert (format "write-multibyte-character r%d r%d\n" RRR rrr)))
1187 (defun ccl-dump-translate-character (rrr RRR Rrr)
1188 (insert (format "translation table(r%d) r%d r%d\n" Rrr RRR rrr)))
1190 (defun ccl-dump-translate-character-const-tbl (rrr RRR Rrr)
1191 (let ((tbl (ccl-get-next-code)))
1192 (insert (format "translation table(%S) r%d r%d\n" tbl RRR rrr))))
1194 (defun ccl-dump-iterate-multiple-map (rrr RRR Rrr)
1195 (let ((notbl (ccl-get-next-code))
1197 (insert (format "iterate-multiple-map r%d r%d\n" RRR rrr))
1198 (insert (format "\tnumber of maps is %d .\n\t [" notbl))
1200 (setq id (ccl-get-next-code))
1201 (insert (format "%S" id))
1205 (defun ccl-dump-map-multiple (rrr RRR Rrr)
1206 (let ((notbl (ccl-get-next-code))
1208 (insert (format "map-multiple r%d r%d\n" RRR rrr))
1209 (insert (format "\tnumber of maps and separators is %d\n\t [" notbl))
1211 (setq id (ccl-get-next-code))
1214 (insert (format "%S " id)))
1218 (defun ccl-dump-map-single (rrr RRR Rrr)
1219 (let ((id (ccl-get-next-code)))
1220 (insert (format "map-single r%d r%d map(%S)\n" RRR rrr id))))
1223 ;; CCL emulation staffs
1225 ;; Not yet implemented.
1227 ;; Auto-loaded functions.
1230 (defmacro declare-ccl-program (name &optional vector)
1231 "Declare NAME as a name of CCL program.
1233 This macro exists for backward compatibility. In the old version of
1234 Emacs, to compile a CCL program which calls another CCL program not
1235 yet defined, it must be declared as a CCL program in advance. But,
1236 now CCL program names are resolved not at compile time but before
1239 Optional arg VECTOR is a compiled CCL code of the CCL program."
1240 `(put ',name 'ccl-program-idx (register-ccl-program ',name ,vector)))
1243 (defmacro define-ccl-program (name ccl-program &optional doc)
1244 "Set NAME the compiled code of CCL-PROGRAM.
1246 CCL-PROGRAM has this form:
1247 (BUFFER_MAGNIFICATION
1251 BUFFER_MAGNIFICATION is an integer value specifying the approximate
1252 output buffer magnification size compared with the bytes of input data
1253 text. If the value is zero, the CCL program can't execute `read' and
1256 CCL_MAIN_CODE and CCL_EOF_CODE are CCL program codes. CCL_MAIN_CODE
1257 executed at first. If there's no more input data when `read' command
1258 is executed in CCL_MAIN_CODE, CCL_EOF_CODE is executed. If
1259 CCL_MAIN_CODE is terminated, CCL_EOF_CODE is not executed.
1261 Here's the syntax of CCL program code in BNF notation. The lines
1262 starting by two semicolons (and optional leading spaces) describe the
1265 CCL_MAIN_CODE := CCL_BLOCK
1267 CCL_EOF_CODE := CCL_BLOCK
1269 CCL_BLOCK := STATEMENT | (STATEMENT [STATEMENT ...])
1272 SET | IF | BRANCH | LOOP | REPEAT | BREAK | READ | WRITE | CALL
1275 SET := (REG = EXPRESSION)
1276 | (REG ASSIGNMENT_OPERATOR EXPRESSION)
1277 ;; The following form is the same as (r0 = integer).
1280 EXPRESSION := ARG | (EXPRESSION OPERATOR ARG)
1282 ;; Evaluate EXPRESSION. If the result is nonzeor, execute
1283 ;; CCL_BLOCK_0. Otherwise, execute CCL_BLOCK_1.
1284 IF := (if EXPRESSION CCL_BLOCK_0 CCL_BLOCK_1)
1286 ;; Evaluate EXPRESSION. Provided that the result is N, execute
1288 BRANCH := (branch EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1 ...])
1290 ;; Execute STATEMENTs until (break) or (end) is executed.
1291 LOOP := (loop STATEMENT [STATEMENT ...])
1293 ;; Terminate the most inner loop.
1297 ;; Jump to the head of the most inner loop.
1299 ;; Same as: ((write [REG | integer | string])
1301 | (write-repeat [REG | integer | string])
1302 ;; Same as: ((write REG [ARRAY])
1305 | (write-read-repeat REG [ARRAY])
1306 ;; Same as: ((write integer)
1309 | (write-read-repeat REG integer)
1311 READ := ;; Set REG_0 to a byte read from the input text, set REG_1
1312 ;; to the next byte read, and so on.
1313 (read REG_0 [REG_1 ...])
1314 ;; Same as: ((read REG)
1315 ;; (if (REG OPERATOR ARG) CCL_BLOCK_0 CCL_BLOCK_1))
1316 | (read-if (REG OPERATOR ARG) CCL_BLOCK_0 CCL_BLOCK_1)
1317 ;; Same as: ((read REG)
1318 ;; (branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...]))
1319 | (read-branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...])
1320 ;; Read a character from the input text while parsing
1321 ;; multibyte representation, set REG_0 to the charset ID of
1322 ;; the character, set REG_1 to the code point of the
1323 ;; character. If the dimension of charset is two, set REG_1
1324 ;; to ((CODE0 << 8) | CODE1), where CODE0 is the first code
1325 ;; point and CODE1 is the second code point.
1326 | (read-multibyte-character REG_0 REG_1)
1329 ;; Write REG_0, REG_1, ... to the output buffer. If REG_N is
1330 ;; a multibyte character, write the corresponding multibyte
1332 (write REG_0 [REG_1 ...])
1333 ;; Same as: ((r7 = EXPRESSION)
1335 | (write EXPRESSION)
1336 ;; Write the value of `integer' to the output buffer. If it
1337 ;; is a multibyte character, write the corresponding multibyte
1340 ;; Write the byte sequence of `string' as is to the output
1341 ;; buffer. It is encoded by binary coding system, thus,
1342 ;; by this operation, you cannot write multibyte string
1345 ;; Same as: (write string)
1347 ;; Provided that the value of REG is N, write Nth element of
1348 ;; ARRAY to the output buffer. If it is a multibyte
1349 ;; character, write the corresponding multibyte
1352 ;; Write a multibyte representation of a character whose
1353 ;; charset ID is REG_0 and code point is REG_1. If the
1354 ;; dimension of the charset is two, REG_1 should be ((CODE0 <<
1355 ;; 8) | CODE1), where CODE0 is the first code point and CODE1
1356 ;; is the second code point of the character.
1357 | (write-multibyte-character REG_0 REG_1)
1359 ;; Call CCL program whose name is ccl-program-name.
1360 CALL := (call ccl-program-name)
1362 ;; Terminate the CCL program.
1365 ;; CCL registers that can contain any integer value. As r7 is also
1366 ;; used by CCL interpreter, its value is changed unexpectedly.
1367 REG := r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7
1369 ARG := REG | integer
1372 ;; Normal arithmethic operators (same meaning as C code).
1375 ;; Bitwize operators (same meaning as C code)
1378 ;; Shifting operators (same meaning as C code)
1381 ;; (REG = ARG_0 <8 ARG_1) means:
1382 ;; (REG = ((ARG_0 << 8) | ARG_1))
1385 ;; (REG = ARG_0 >8 ARG_1) means:
1386 ;; ((REG = (ARG_0 >> 8))
1387 ;; (r7 = (ARG_0 & 255)))
1390 ;; (REG = ARG_0 // ARG_1) means:
1391 ;; ((REG = (ARG_0 / ARG_1))
1392 ;; (r7 = (ARG_0 % ARG_1)))
1395 ;; Normal comparing operators (same meaning as C code)
1396 | < | > | == | <= | >= | !=
1398 ;; If ARG_0 and ARG_1 are higher and lower byte of Shift-JIS
1399 ;; code, and CHAR is the corresponding JISX0208 character,
1400 ;; (REG = ARG_0 de-sjis ARG_1) means:
1403 ;; where CODE0 is the first code point of CHAR, CODE1 is the
1404 ;; second code point of CHAR.
1407 ;; If ARG_0 and ARG_1 are the first and second code point of
1408 ;; JISX0208 character CHAR, and SJIS is the correponding
1410 ;; (REG = ARG_0 en-sjis ARG_1) means:
1413 ;; where HIGH is the higher byte of SJIS, LOW is the lower
1417 ASSIGNMENT_OPERATOR :=
1418 ;; Same meaning as C code
1419 += | -= | *= | /= | %= | &= | `|=' | ^= | <<= | >>=
1421 ;; (REG <8= ARG) is the same as:
1426 ;; (REG >8= ARG) is the same as:
1427 ;; ((r7 = (REG & 255))
1430 ;; (REG //= ARG) is the same as:
1431 ;; ((r7 = (REG % ARG))
1435 ARRAY := `[' integer ... `]'
1439 (translate-character REG(table) REG(charset) REG(codepoint))
1440 | (translate-character SYMBOL REG(charset) REG(codepoint))
1442 (iterate-multiple-map REG REG MAP-IDs)
1443 | (map-multiple REG REG (MAP-SET))
1444 | (map-single REG REG MAP-ID)
1445 MAP-IDs := MAP-ID ...
1446 MAP-SET := MAP-IDs | (MAP-IDs) MAP-SET
1449 `(let ((prog ,(ccl-compile (eval ccl-program))))
1450 (defconst ,name prog ,doc)
1451 (put ',name 'ccl-program-idx (register-ccl-program ',name prog))
1455 (defmacro check-ccl-program (ccl-program &optional name)
1456 "Check validity of CCL-PROGRAM.
1457 If CCL-PROGRAM is a symbol denoting a CCL program, return
1458 CCL-PROGRAM, else return nil.
1459 If CCL-PROGRAM is a vector and optional arg NAME (symbol) is supplied,
1460 register CCL-PROGRAM by name NAME, and return NAME."
1461 `(if (ccl-program-p ,ccl-program)
1462 (if (vectorp ,ccl-program)
1464 (register-ccl-program ,name ,ccl-program)
1469 (defun ccl-execute-with-args (ccl-prog &rest args)
1470 "Execute CCL-PROGRAM with registers initialized by the remaining args.
1471 The return value is a vector of resulting CCL registers.
1473 See the documentation of `define-ccl-program' for the detail of CCL program."
1474 (let ((reg (make-vector 8 0))
1476 (while (and args (< i 8))
1477 (if (not (integerp (car args)))
1478 (error "Arguments should be integer"))
1479 (aset reg i (car args))
1480 (setq args (cdr args) i (1+ i)))
1481 (ccl-execute ccl-prog reg)