APPROVE COMMIT NOTE: This patch has been committed. lisp/ChangeLog addition: 2007-07-27 Aidan Kehoe <kehoea(a)parhasard.net&gt; * mule/mule-ccl.el: * mule/ccl.el: Renamed mule-ccl.el to ccl.el, for compatibility with GNU now we no longer dump it. * mule/mule-coding.el (require): * mule/chinese.el (progn): Reflect this renaming in a couple of require calls. XEmacs Trunk source patch: Diff command: cvs -q diff -Nu Files affected: lisp/mule/chinese.el =================================================================== RCS lisp/mule/mule-coding.el =================================================================== RCS lisp/mule/ccl.el =================================================================== RCS lisp/mule/mule-ccl.el =================================================================== RCS Index: lisp/mule/mule-ccl.el =================================================================== RCS file: mule-ccl.el diff -N mule-ccl.el --- /tmp/cvsAAABVaGMS Fri Jul 27 20:55:08 2007 +++ /dev/null Fri Jul 27 20:55:07 2007 ＠＠ -1,1565 +0,0 ＠＠ -;;; mule-ccl.el --- CCL (Code Conversion Language) compiler -*- coding: iso-2022-7bit; -*- - -;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN. -;; Licensed to the Free Software Foundation. -;; Copyright (C) 2002, 2007 Free Software Foundation, Inc. - -;; Keywords: CCL, mule, multilingual, character set, coding-system - -;; This file is part of XEmacs. - -;; XEmacs is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. - -;; XEmacs is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with XEmacs; see the file COPYING. If not, write to the -;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, -;; Boston, MA 02111-1307, USA. - -;; Synched up with: FSF 21.0.90 - -;;; Commentary: - -;; CCL (Code Conversion Language) is a simple programming language to -;; be used for various kind of code conversion. CCL program is -;; compiled to CCL code (vector of integers) and executed by CCL -;; interpreter of Emacs. -;; -;; CCL is used for code conversion at process I/O and file I/O for -;; non-standard coding-system. In addition, it is used for -;; calculating a code point of X's font from a character code. -;; However, since CCL is designed as a powerful programming language, -;; it can be used for more generic calculation. For instance, -;; combination of three or more arithmetic operations can be -;; calculated faster than Emacs Lisp. -;; -;; Syntax and semantics of CCL program is described in the -;; documentation of `define-ccl-program'. - -;;; Code: - -(defconst ccl-command-table - [if branch loop break repeat write-repeat write-read-repeat - read read-if read-branch write call end - read-multibyte-character write-multibyte-character - translate-character mule-to-unicode unicode-to-mule - iterate-multiple-map map-multiple map-single lookup-integer - lookup-character] - "Vector of CCL commands (symbols).") - -;; Put a property to each symbol of CCL commands for the compiler. -(let (op (i 0) (len (length ccl-command-table))) - (while (< i len) - (setq op (aref ccl-command-table i)) - (put op 'ccl-compile-function (intern (format "ccl-compile-%s" op))) - (setq i (1+ i)))) - -(defconst ccl-code-table - [set-register - set-short-const - set-const - set-array - jump - jump-cond - write-register-jump - write-register-read-jump - write-const-jump - write-const-read-jump - write-string-jump - write-array-read-jump - read-jump - branch - read-register - write-expr-const - read-branch - write-register - write-expr-register - call - write-const-string - write-array - end - set-assign-expr-const - set-assign-expr-register - set-expr-const - set-expr-register - jump-cond-expr-const - jump-cond-expr-register - read-jump-cond-expr-const - read-jump-cond-expr-register - ex-cmd - ] - "Vector of CCL compiled codes (symbols).") - -(defconst ccl-extended-code-table - [read-multibyte-character - write-multibyte-character - translate-character - translate-character-const-tbl - mule-to-unicode - unicode-to-mule - nil nil nil nil nil nil nil nil nil nil ; 0x06-0x0f - iterate-multiple-map - map-multiple - map-single - lookup-int-const-tbl - lookup-char-const-tbl - ] - "Vector of CCL extended compiled codes (symbols).") - -;; Put a property to each symbol of CCL codes for the disassembler. -(let (code (i 0) (len (length ccl-code-table))) - (while (< i len) - (setq code (aref ccl-code-table i)) - (put code 'ccl-code i) - (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code))) - (setq i (1+ i)))) - -(let (code (i 0) (len (length ccl-extended-code-table))) - (while (< i len) - (setq code (aref ccl-extended-code-table i)) - (if code - (progn - (put code 'ccl-ex-code i) - (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code))))) - (setq i (1+ i)))) - -(defconst ccl-jump-code-list - '(jump jump-cond write-register-jump write-register-read-jump - write-const-jump write-const-read-jump write-string-jump - write-array-read-jump read-jump)) - -;; Put a property `jump-flag' to each CCL code which execute jump in -;; some way. -(let ((l ccl-jump-code-list)) - (while l - (put (car l) 'jump-flag t) - (setq l (cdr l)))) - -(defconst ccl-register-table - [r0 r1 r2 r3 r4 r5 r6 r7] - "Vector of CCL registers (symbols).") - -;; Put a property to indicate register number to each symbol of CCL. -;; registers. -(let (reg (i 0) (len (length ccl-register-table))) - (while (< i len) - (setq reg (aref ccl-register-table i)) - (put reg 'ccl-register-number i) - (setq i (1+ i)))) - -(defconst ccl-arith-table - [+ - * / % & | ^ << >> <8 >8 // nil nil nil - < > == <= >= != de-sjis en-sjis] - "Vector of CCL arithmetic/logical operators (symbols).") - -;; Put a property to each symbol of CCL operators for the compiler. -(let (arith (i 0) (len (length ccl-arith-table))) - (while (< i len) - (setq arith (aref ccl-arith-table i)) - (if arith (put arith 'ccl-arith-code i)) - (setq i (1+ i)))) - -(defconst ccl-assign-arith-table - [+= -= *= /= %= &= |= ^= <<= >>= <8= >8= //=] - "Vector of CCL assignment operators (symbols).") - -;; Put a property to each symbol of CCL assignment operators for the compiler. -(let (arith (i 0) (len (length ccl-assign-arith-table))) - (while (< i len) - (setq arith (aref ccl-assign-arith-table i)) - (put arith 'ccl-self-arith-code i) - (setq i (1+ i)))) - -(defvar ccl-program-vector nil - "Working vector of CCL codes produced by CCL compiler.") -(defvar ccl-current-ic 0 - "The current index for `ccl-program-vector'.") - -;; Embed integer DATA in `ccl-program-vector' at `ccl-current-ic' and -;; increment it. If IC is specified, embed DATA at IC. -(defun ccl-embed-data (data &optional ic) - ;; XEmacs: Embed characters as characters, since their integer values vary at - ;; runtime. - ; (if (characterp data) - ; (setq data (char-int data))) - (if ic - (aset ccl-program-vector ic data) - (let ((len (length ccl-program-vector))) - (if (>= ccl-current-ic len) - (let ((new (make-vector (* len 2) nil))) - (while (> len 0) - (setq len (1- len)) - (aset new len (aref ccl-program-vector len))) - (setq ccl-program-vector new)))) - (aset ccl-program-vector ccl-current-ic data) - (setq ccl-current-ic (1+ ccl-current-ic)))) - -;; Embed pair of SYMBOL and PROP where (get SYMBOL PROP) should give -;; proper index number for SYMBOL. PROP should be -;; `translation-table-id', `translation-hash-table-id' -;; `code-conversion-map-id', or `ccl-program-idx'. -(defun ccl-embed-symbol (symbol prop) - (ccl-embed-data (cons symbol prop))) - -;; Embed string STR of length LEN in `ccl-program-vector' at -;; `ccl-current-ic'. -(defun ccl-embed-string (len str) - (let ((i 0)) - (while (< i len) - (ccl-embed-data (logior (ash (aref str i) 16) - (if (< (1+ i) len) - (ash (aref str (1+ i)) 8) - 0) - (if (< (+ i 2) len) - (aref str (+ i 2)) - 0))) - (setq i (+ i 3))))) - -;; Embed a relative jump address to `ccl-current-ic' in -;; `ccl-program-vector' at IC without altering the other bit field. -(defun ccl-embed-current-address (ic) - (let ((relative (- ccl-current-ic (1+ ic)))) - (aset ccl-program-vector ic - (logior (aref ccl-program-vector ic) (ash relative 8))))) - -;; Embed CCL code for the operation OP and arguments REG and DATA in -;; `ccl-program-vector' at `ccl-current-ic' in the following format. -;; |----------------- integer (28-bit) ------------------| -;; |------------ 20-bit ------------|- 3-bit --|- 5-bit -| -;; |------------- DATA -------------|-- REG ---|-- OP ---| -;; If REG2 is specified, embed a code in the following format. -;; |------- 17-bit ------|- 3-bit --|- 3-bit --|- 5-bit -| -;; |-------- DATA -------|-- REG2 --|-- REG ---|-- OP ---| - -;; If REG is a CCL register symbol (e.g. r0, r1...), the register -;; number is embedded. If OP is one of unconditional jumps, DATA is -;; changed to an relative jump address. - -(defun ccl-embed-code (op reg data &optional reg2) - (if (and (> data 0) (get op 'jump-flag)) - ;; DATA is an absolute jump address. Make it relative to the - ;; next of jump code. - (setq data (- data (1+ ccl-current-ic)))) - (let ((code (logior (get op 'ccl-code) - (ash - (if (symbolp reg) (get reg 'ccl-register-number) reg) 5) - (if reg2 - (logior (ash (get reg2 'ccl-register-number) 8) - (ash data 11)) - (ash data 8))))) - (ccl-embed-data code))) - -;; extended ccl command format -;; |- 14-bit -|- 3-bit --|- 3-bit --|- 3-bit --|- 5-bit -| -;; |- EX-OP --|-- REG3 --|-- REG2 --|-- REG ---|-- OP ---| -(defun ccl-embed-extended-command (ex-op reg reg2 reg3) - (let ((data (logior (ash (get ex-op 'ccl-ex-code) 3) - (if (symbolp reg3) - (get reg3 'ccl-register-number) - 0)))) - (ccl-embed-code 'ex-cmd reg data reg2))) - -;; Just advance `ccl-current-ic' by INC. -(defun ccl-increment-ic (inc) - (setq ccl-current-ic (+ ccl-current-ic inc))) - -;; If non-nil, index of the start of the current loop. -(defvar ccl-loop-head nil) -;; If non-nil, list of absolute addresses of the breaking points of -;; the current loop. -(defvar ccl-breaks nil) - -;;;###autoload -(defun ccl-compile (ccl-program) - "Return a compiled code of CCL-PROGRAM as a vector of integer." - (if (or (null (consp ccl-program)) - (null (integerp (car ccl-program))) - (null (listp (car (cdr ccl-program))))) - (error "CCL: Invalid CCL program: %s" ccl-program)) - (if (null (vectorp ccl-program-vector)) - (setq ccl-program-vector (make-vector 8192 0))) - (setq ccl-loop-head nil ccl-breaks nil) - (setq ccl-current-ic 0) - - ;; The first element is the buffer magnification. - (ccl-embed-data (car ccl-program)) - - ;; The second element is the address of the start CCL code for - ;; processing end of input buffer (we call it eof-processor). We - ;; set it later. - (ccl-increment-ic 1) - - ;; Compile the main body of the CCL program. - (ccl-compile-1 (car (cdr ccl-program))) - - ;; Embed the address of eof-processor. - (ccl-embed-data ccl-current-ic 1) - - ;; Then compile eof-processor. - (if (nth 2 ccl-program) - (ccl-compile-1 (nth 2 ccl-program))) - - ;; At last, embed termination code. - (ccl-embed-code 'end 0 0) - - (let ((vec (make-vector ccl-current-ic 0)) - (i 0)) - (while (< i ccl-current-ic) - (aset vec i (aref ccl-program-vector i)) - (setq i (1+ i))) - vec)) - -;; Signal syntax error. -(defun ccl-syntax-error (cmd) - (error "CCL: Syntax error: %s" cmd)) - -;; Check if ARG is a valid CCL register. -(defun ccl-check-register (arg cmd) - (if (get arg 'ccl-register-number) - arg - (error "CCL: Invalid register %s in %s." arg cmd))) - -;; Check if ARG is a valid CCL command. -(defun ccl-check-compile-function (arg cmd) - (or (get arg 'ccl-compile-function) - (error "CCL: Invalid command: %s" cmd))) - -;; In the following code, most ccl-compile-XXXX functions return t if -;; they end with unconditional jump, else return nil. - -;; Compile CCL-BLOCK (see the syntax above). -(defun ccl-compile-1 (ccl-block) - (let (unconditional-jump - cmd) - (if (or (integer-or-char-p ccl-block) - (stringp ccl-block) - (and ccl-block (symbolp (car ccl-block)))) - ;; This block consists of single statement. - (setq ccl-block (list ccl-block))) - - ;; Now CCL-BLOCK is a list of statements. Compile them one by - ;; one. - (while ccl-block - (setq cmd (car ccl-block)) - (setq unconditional-jump - (cond ((integer-or-char-p cmd) - ;; SET statement for the register 0. - (ccl-compile-set (list 'r0 '= cmd))) - - ((stringp cmd) - ;; WRITE statement of string argument. - (ccl-compile-write-string cmd)) - - ((listp cmd) - ;; The other statements. - (cond ((eq (nth 1 cmd) '=) - ;; SET statement of the form `(REG = EXPRESSION)'. - (ccl-compile-set cmd)) - - ((and (symbolp (nth 1 cmd)) - (get (nth 1 cmd) 'ccl-self-arith-code)) - ;; SET statement with an assignment operation. - (ccl-compile-self-set cmd)) - - (t - (funcall (ccl-check-compile-function (car cmd) cmd) - cmd)))) - - (t - (ccl-syntax-error cmd)))) - (setq ccl-block (cdr ccl-block))) - unconditional-jump)) - -(defconst ccl-max-short-const (ash 1 19)) -(defconst ccl-min-short-const (ash -1 19)) - -;; Compile SET statement. -(defun ccl-compile-set (cmd) - (let ((rrr (ccl-check-register (car cmd) cmd)) - (right (nth 2 cmd))) - (cond ((listp right) - ;; CMD has the form `(RRR = (XXX OP YYY))'. - (ccl-compile-expression rrr right)) - - ((integer-or-char-p right) - ;; CMD has the form `(RRR = integer)'. - (if (and (<= right ccl-max-short-const) - (>= right ccl-min-short-const)) - (ccl-embed-code 'set-short-const rrr right) - (ccl-embed-code 'set-const rrr 0) - (ccl-embed-data right))) - - (t - ;; CMD has the form `(RRR = rrr [ array ])'. - (ccl-check-register right cmd) - (let ((ary (nth 3 cmd))) - (if (vectorp ary) - (let ((i 0) (len (length ary))) - (ccl-embed-code 'set-array rrr len right) - (while (< i len) - (ccl-embed-data (aref ary i)) - (setq i (1+ i)))) - (ccl-embed-code 'set-register rrr 0 right)))))) - nil) - -;; Compile SET statement with ASSIGNMENT_OPERATOR. -(defun ccl-compile-self-set (cmd) - (let ((rrr (ccl-check-register (car cmd) cmd)) - (right (nth 2 cmd))) - (if (listp right) - ;; CMD has the form `(RRR ASSIGN_OP (XXX OP YYY))', compile - ;; the right hand part as `(r7 = (XXX OP YYY))' (note: the - ;; register 7 can be used for storing temporary value). - (progn - (ccl-compile-expression 'r7 right) - (setq right 'r7))) - ;; Now CMD has the form `(RRR ASSIGN_OP ARG)'. Compile it as - ;; `(RRR = (RRR OP ARG))'. - (ccl-compile-expression - rrr - (list rrr (intern (substring (symbol-name (nth 1 cmd)) 0 -1)) right))) - nil) - -;; Compile SET statement of the form `(RRR = EXPR)'. -(defun ccl-compile-expression (rrr expr) - (let ((left (car expr)) - (op (get (nth 1 expr) 'ccl-arith-code)) - (right (nth 2 expr))) - (if (listp left) - (progn - ;; EXPR has the form `((EXPR2 OP2 ARG) OP RIGHT)'. Compile - ;; the first term as `(r7 = (EXPR2 OP2 ARG)).' - (ccl-compile-expression 'r7 left) - (setq left 'r7))) - - ;; Now EXPR has the form (LEFT OP RIGHT). - (if (and (eq rrr left) - (< op (length ccl-assign-arith-table))) - ;; Compile this SET statement as `(RRR OP= RIGHT)'. - (if (integer-or-char-p right) - (progn - (ccl-embed-code 'set-assign-expr-const rrr (ash op 3) 'r0) - (ccl-embed-data right)) - (ccl-check-register right expr) - (ccl-embed-code 'set-assign-expr-register rrr (ash op 3) right)) - - ;; Compile this SET statement as `(RRR = (LEFT OP RIGHT))'. - (if (integer-or-char-p right) - (progn - (ccl-embed-code 'set-expr-const rrr (ash op 3) left) - (ccl-embed-data right)) - (ccl-check-register right expr) - (ccl-embed-code 'set-expr-register - rrr - (logior (ash op 3) (get right 'ccl-register-number)) - left))))) - -;; Compile WRITE statement with string argument. -(defun ccl-compile-write-string (str) - (setq str (encode-coding-string str 'binary)) - (let ((len (length str))) - (ccl-embed-code 'write-const-string 1 len) - (ccl-embed-string len str)) - nil) - -;; Compile IF statement of the form `(if CONDITION TRUE-PART FALSE-PART)'. -;; If READ-FLAG is non-nil, this statement has the form -;; `(read-if (REG OPERATOR ARG) TRUE-PART FALSE-PART)'. -(defun ccl-compile-if (cmd &optional read-flag) - (if (and (/= (length cmd) 3) (/= (length cmd) 4)) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((condition (nth 1 cmd)) - (true-cmds (nth 2 cmd)) - (false-cmds (nth 3 cmd)) - jump-cond-address) - (if (and (listp condition) - (listp (car condition))) - ;; If CONDITION is a nested expression, the inner expression - ;; should be compiled at first as SET statement, i.e.: - ;; `(if ((X OP2 Y) OP Z) ...)' is compiled into two statements: - ;; `(r7 = (X OP2 Y)) (if (r7 OP Z) ...)'. - (progn - (ccl-compile-expression 'r7 (car condition)) - (setq condition (cons 'r7 (cdr condition))) - (setq cmd (cons (car cmd) - (cons condition (cdr (cdr cmd))))))) - - (setq jump-cond-address ccl-current-ic) - ;; Compile CONDITION. - (if (symbolp condition) - ;; CONDITION is a register. - (progn - (ccl-check-register condition cmd) - (ccl-embed-code 'jump-cond condition 0)) - ;; CONDITION is a simple expression of the form (RRR OP ARG). - (let ((rrr (car condition)) - (op (get (nth 1 condition) 'ccl-arith-code)) - (arg (nth 2 condition))) - (ccl-check-register rrr cmd) - (if (integer-or-char-p arg) - (progn - (ccl-embed-code (if read-flag 'read-jump-cond-expr-const - 'jump-cond-expr-const) - rrr 0) - (ccl-embed-data op) - (ccl-embed-data arg)) - (ccl-check-register arg cmd) - (ccl-embed-code (if read-flag 'read-jump-cond-expr-register - 'jump-cond-expr-register) - rrr 0) - (ccl-embed-data op) - (ccl-embed-data (get arg 'ccl-register-number))))) - - ;; Compile TRUE-PART. - (let ((unconditional-jump (ccl-compile-1 true-cmds))) - (if (null false-cmds) - ;; This is the place to jump to if condition is false. - (progn - (ccl-embed-current-address jump-cond-address) - (setq unconditional-jump nil)) - (let (end-true-part-address) - (if (not unconditional-jump) - (progn - ;; If TRUE-PART does not end with unconditional jump, we - ;; have to jump to the end of FALSE-PART from here. - (setq end-true-part-address ccl-current-ic) - (ccl-embed-code 'jump 0 0))) - ;; This is the place to jump to if CONDITION is false. - (ccl-embed-current-address jump-cond-address) - ;; Compile FALSE-PART. - (setq unconditional-jump - (and (ccl-compile-1 false-cmds) unconditional-jump)) - (if end-true-part-address - ;; This is the place to jump to after the end of TRUE-PART. - (ccl-embed-current-address end-true-part-address)))) - unconditional-jump))) - -;; Compile BRANCH statement. -(defun ccl-compile-branch (cmd) - (if (< (length cmd) 3) - (error "CCL: Invalid number of arguments: %s" cmd)) - (ccl-compile-branch-blocks 'branch - (ccl-compile-branch-expression (nth 1 cmd) cmd) - (cdr (cdr cmd)))) - -;; Compile READ statement of the form `(read-branch EXPR BLOCK0 BLOCK1 ...)'. -(defun ccl-compile-read-branch (cmd) - (if (< (length cmd) 3) - (error "CCL: Invalid number of arguments: %s" cmd)) - (ccl-compile-branch-blocks 'read-branch - (ccl-compile-branch-expression (nth 1 cmd) cmd) - (cdr (cdr cmd)))) - -;; Compile EXPRESSION part of BRANCH statement and return register -;; which holds a value of the expression. -(defun ccl-compile-branch-expression (expr cmd) - (if (listp expr) - ;; EXPR has the form `(EXPR2 OP ARG)'. Compile it as SET - ;; statement of the form `(r7 = (EXPR2 OP ARG))'. - (progn - (ccl-compile-expression 'r7 expr) - 'r7) - (ccl-check-register expr cmd))) - -;; Compile BLOCKs of BRANCH statement. CODE is 'branch or 'read-branch. -;; REG is a register which holds a value of EXPRESSION part. BLOCKs -;; is a list of CCL-BLOCKs. -(defun ccl-compile-branch-blocks (code rrr blocks) - (let ((branches (length blocks)) - branch-idx - jump-table-head-address - empty-block-indexes - block-tail-addresses - block-unconditional-jump) - (ccl-embed-code code rrr branches) - (setq jump-table-head-address ccl-current-ic) - ;; The size of jump table is the number of blocks plus 1 (for the - ;; case RRR is out of range). - (ccl-increment-ic (1+ branches)) - (setq empty-block-indexes (list branches)) - ;; Compile each block. - (setq branch-idx 0) - (while blocks - (if (null (car blocks)) - ;; This block is empty. - (setq empty-block-indexes (cons branch-idx empty-block-indexes) - block-unconditional-jump t) - ;; This block is not empty. - (ccl-embed-data (- ccl-current-ic jump-table-head-address) - (+ jump-table-head-address branch-idx)) - (setq block-unconditional-jump (ccl-compile-1 (car blocks))) - (if (not block-unconditional-jump) - (progn - ;; Jump address of the end of branches are embedded later. - ;; For the moment, just remember where to embed them. - (setq block-tail-addresses - (cons ccl-current-ic block-tail-addresses)) - (ccl-embed-code 'jump 0 0)))) - (setq branch-idx (1+ branch-idx)) - (setq blocks (cdr blocks))) - (if (not block-unconditional-jump) - ;; We don't need jump code at the end of the last block. - (setq block-tail-addresses (cdr block-tail-addresses) - ccl-current-ic (1- ccl-current-ic))) - ;; Embed jump address at the tailing jump commands of blocks. - (while block-tail-addresses - (ccl-embed-current-address (car block-tail-addresses)) - (setq block-tail-addresses (cdr block-tail-addresses))) - ;; For empty blocks, make entries in the jump table point directly here. - (while empty-block-indexes - (ccl-embed-data (- ccl-current-ic jump-table-head-address) - (+ jump-table-head-address (car empty-block-indexes))) - (setq empty-block-indexes (cdr empty-block-indexes)))) - ;; Branch command ends by unconditional jump if RRR is out of range. - nil) - -;; Compile LOOP statement. -(defun ccl-compile-loop (cmd) - (if (< (length cmd) 2) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let* ((ccl-loop-head ccl-current-ic) - (ccl-breaks nil) - unconditional-jump) - (setq cmd (cdr cmd)) - (if cmd - (progn - (setq unconditional-jump t) - (while cmd - (setq unconditional-jump - (and (ccl-compile-1 (car cmd)) unconditional-jump)) - (setq cmd (cdr cmd))) - (if (not ccl-breaks) - unconditional-jump - ;; Embed jump address for break statements encountered in - ;; this loop. - (while ccl-breaks - (ccl-embed-current-address (car ccl-breaks)) - (setq ccl-breaks (cdr ccl-breaks)))) - nil)))) - -;; Compile BREAK statement. -(defun ccl-compile-break (cmd) - (if (/= (length cmd) 1) - (error "CCL: Invalid number of arguments: %s" cmd)) - (if (null ccl-loop-head) - (error "CCL: No outer loop: %s" cmd)) - (setq ccl-breaks (cons ccl-current-ic ccl-breaks)) - (ccl-embed-code 'jump 0 0) - t) - -;; Compile REPEAT statement. -(defun ccl-compile-repeat (cmd) - (if (/= (length cmd) 1) - (error "CCL: Invalid number of arguments: %s" cmd)) - (if (null ccl-loop-head) - (error "CCL: No outer loop: %s" cmd)) - (ccl-embed-code 'jump 0 ccl-loop-head) - t) - -;; Compile WRITE-REPEAT statement. -(defun ccl-compile-write-repeat (cmd) - (if (/= (length cmd) 2) - (error "CCL: Invalid number of arguments: %s" cmd)) - (if (null ccl-loop-head) - (error "CCL: No outer loop: %s" cmd)) - (let ((arg (nth 1 cmd))) - (cond ((integer-or-char-p arg) - (ccl-embed-code 'write-const-jump 0 ccl-loop-head) - (ccl-embed-data arg)) - ((stringp arg) - (setq arg (encode-coding-string arg 'binary)) - (let ((len (length arg))) - (ccl-embed-code 'write-string-jump 0 ccl-loop-head) - (ccl-embed-data len) - (ccl-embed-string len arg))) - (t - (ccl-check-register arg cmd) - (ccl-embed-code 'write-register-jump arg ccl-loop-head)))) - t) - -;; Compile WRITE-READ-REPEAT statement. -(defun ccl-compile-write-read-repeat (cmd) - (if (or (< (length cmd) 2) (> (length cmd) 3)) - (error "CCL: Invalid number of arguments: %s" cmd)) - (if (null ccl-loop-head) - (error "CCL: No outer loop: %s" cmd)) - (let ((rrr (ccl-check-register (nth 1 cmd) cmd)) - (arg (nth 2 cmd))) - (cond ((null arg) - (ccl-embed-code 'write-register-read-jump rrr ccl-loop-head)) - ((integer-or-char-p arg) - (ccl-embed-code 'write-const-read-jump rrr arg ccl-loop-head)) - ((vectorp arg) - (let ((len (length arg)) - (i 0)) - (ccl-embed-code 'write-array-read-jump rrr ccl-loop-head) - (ccl-embed-data len) - (while (< i len) - (ccl-embed-data (aref arg i)) - (setq i (1+ i))))) - (t - (error "CCL: Invalid argument %s: %s" arg cmd))) - (ccl-embed-code 'read-jump rrr ccl-loop-head)) - t) - -;; Compile READ statement. -(defun ccl-compile-read (cmd) - (if (< (length cmd) 2) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let* ((args (cdr cmd)) - (i (1- (length args)))) - (while args - (let ((rrr (ccl-check-register (car args) cmd))) - (ccl-embed-code 'read-register rrr i) - (setq args (cdr args) i (1- i))))) - nil) - -;; Compile READ-IF statement. -(defun ccl-compile-read-if (cmd) - (ccl-compile-if cmd 'read)) - -;; Compile WRITE statement. -(defun ccl-compile-write (cmd) - (if (< (length cmd) 2) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((rrr (nth 1 cmd))) - (cond ((integer-or-char-p rrr) - (ccl-embed-code 'write-const-string 0 rrr)) - ((stringp rrr) - (ccl-compile-write-string rrr)) - ((and (symbolp rrr) (vectorp (nth 2 cmd))) - (ccl-check-register rrr cmd) - ;; CMD has the form `(write REG ARRAY)'. - (let* ((arg (nth 2 cmd)) - (len (length arg)) - (i 0)) - (ccl-embed-code 'write-array rrr len) - (while (< i len) - (if (not (integer-or-char-p (aref arg i))) - (error "CCL: Invalid argument %s: %s" arg cmd)) - (ccl-embed-data (aref arg i)) - (setq i (1+ i))))) - - ((symbolp rrr) - ;; CMD has the form `(write REG ...)'. - (let* ((args (cdr cmd)) - (i (1- (length args)))) - (while args - (setq rrr (ccl-check-register (car args) cmd)) - (ccl-embed-code 'write-register rrr i) - (setq args (cdr args) i (1- i))))) - - ((listp rrr) - ;; CMD has the form `(write (LEFT OP RIGHT))'. - (let ((left (car rrr)) - (op (get (nth 1 rrr) 'ccl-arith-code)) - (right (nth 2 rrr))) - (if (listp left) - (progn - ;; RRR has the form `((EXPR OP2 ARG) OP RIGHT)'. - ;; Compile the first term as `(r7 = (EXPR OP2 ARG))'. - (ccl-compile-expression 'r7 left) - (setq left 'r7))) - ;; Now RRR has the form `(ARG OP RIGHT)'. - (if (integer-or-char-p right) - (progn - (ccl-embed-code 'write-expr-const 0 (ash op 3) left) - (ccl-embed-data right)) - (ccl-check-register right rrr) - (ccl-embed-code 'write-expr-register 0 - (logior (ash op 3) - (get right 'ccl-register-number)))))) - - (t - (error "CCL: Invalid argument: %s" cmd)))) - nil) - -;; Compile CALL statement. -(defun ccl-compile-call (cmd) - (if (/= (length cmd) 2) - (error "CCL: Invalid number of arguments: %s" cmd)) - (if (not (symbolp (nth 1 cmd))) - (error "CCL: Subroutine should be a symbol: %s" cmd)) - (ccl-embed-code 'call 1 0) - (ccl-embed-symbol (nth 1 cmd) 'ccl-program-idx) - nil) - -;; Compile END statement. -(defun ccl-compile-end (cmd) - (if (/= (length cmd) 1) - (error "CCL: Invalid number of arguments: %s" cmd)) - (ccl-embed-code 'end 0 0) - t) - -;; Compile read-multibyte-character -(defun ccl-compile-read-multibyte-character (cmd) - (if (/= (length cmd) 3) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((RRR (nth 1 cmd)) - (rrr (nth 2 cmd))) - (ccl-check-register rrr cmd) - (ccl-check-register RRR cmd) - (ccl-embed-extended-command 'read-multibyte-character rrr RRR 0)) - nil) - -;; Compile write-multibyte-character -(defun ccl-compile-write-multibyte-character (cmd) - (if (/= (length cmd) 3) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((RRR (nth 1 cmd)) - (rrr (nth 2 cmd))) - (ccl-check-register rrr cmd) - (ccl-check-register RRR cmd) - (ccl-embed-extended-command 'write-multibyte-character rrr RRR 0)) - nil) - -;; Compile translate-character -(defun ccl-compile-translate-character (cmd) - (if (/= (length cmd) 4) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((Rrr (nth 1 cmd)) - (RRR (nth 2 cmd)) - (rrr (nth 3 cmd))) - (ccl-check-register rrr cmd) - (ccl-check-register RRR cmd) - (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number))) - (ccl-embed-extended-command 'translate-character-const-tbl - rrr RRR 0) - (ccl-embed-symbol Rrr 'translation-table-id)) - (t - (ccl-check-register Rrr cmd) - (ccl-embed-extended-command 'translate-character rrr RRR Rrr)))) - nil) - -;; Compile mule-to-unicode -(defun ccl-compile-mule-to-unicode (cmd) - (if (/= (length cmd) 3) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((RRR (nth 1 cmd)) - (rrr (nth 2 cmd))) - (ccl-check-register RRR cmd) - (ccl-check-register rrr cmd) - (ccl-embed-extended-command 'mule-to-unicode RRR rrr 0)) - nil) - -;; Given a Unicode code point in register rrr, write the charset ID of the -;; corresponding character in RRR, and the Mule-CCL form of its code in rrr. -(defun ccl-compile-unicode-to-mule (cmd) - (if (/= (length cmd) 3) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((rrr (nth 1 cmd)) - (RRR (nth 2 cmd))) - (ccl-check-register rrr cmd) - (ccl-check-register RRR cmd) - (ccl-embed-extended-command 'unicode-to-mule rrr RRR 0)) - nil) - -;; Compile lookup-integer -(defun ccl-compile-lookup-integer (cmd) - (if (/= (length cmd) 4) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((Rrr (nth 1 cmd)) - (RRR (nth 2 cmd)) - (rrr (nth 3 cmd))) - (ccl-check-register RRR cmd) - (ccl-check-register rrr cmd) - (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number))) - (ccl-embed-extended-command 'lookup-int-const-tbl - rrr RRR 0) - (ccl-embed-symbol Rrr 'translation-hash-table-id)) - (t - (error "CCL: non-constant table: %s" cmd) - ;; not implemented: - (ccl-check-register Rrr cmd) - (ccl-embed-extended-command 'lookup-int rrr RRR 0)))) - nil) - -;; Compile lookup-character -(defun ccl-compile-lookup-character (cmd) - (if (/= (length cmd) 4) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((Rrr (nth 1 cmd)) - (RRR (nth 2 cmd)) - (rrr (nth 3 cmd))) - (ccl-check-register RRR cmd) - (ccl-check-register rrr cmd) - (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number))) - (ccl-embed-extended-command 'lookup-char-const-tbl - rrr RRR 0) - (ccl-embed-symbol Rrr 'translation-hash-table-id)) - (t - (error "CCL: non-constant table: %s" cmd) - ;; not implemented: - (ccl-check-register Rrr cmd) - (ccl-embed-extended-command 'lookup-char rrr RRR 0)))) - nil) - -(defun ccl-compile-iterate-multiple-map (cmd) - (ccl-compile-multiple-map-function 'iterate-multiple-map cmd) - nil) - -(defun ccl-compile-map-multiple (cmd) - (if (/= (length cmd) 4) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let (func arg) - (setq func - (lambda (arg mp) - (let ((len 0) result add) - (while arg - (if (consp (car arg)) - (setq add (funcall func (car arg) t) - result (append result add) - add (+ (- (car add)) 1)) - (setq result - (append result - (list (car arg))) - add 1)) - (setq arg (cdr arg) - len (+ len add))) - (if mp - (cons (- len) result) - result)))) - (setq arg (append (list (nth 0 cmd) (nth 1 cmd) (nth 2 cmd)) - (funcall func (nth 3 cmd) nil))) - (ccl-compile-multiple-map-function 'map-multiple arg)) - nil) - -(defun ccl-compile-map-single (cmd) - (if (/= (length cmd) 4) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((RRR (nth 1 cmd)) - (rrr (nth 2 cmd)) - (map (nth 3 cmd))) - (ccl-check-register rrr cmd) - (ccl-check-register RRR cmd) - (ccl-embed-extended-command 'map-single rrr RRR 0) - (cond ((symbolp map) - (if (get map 'code-conversion-map) - (ccl-embed-symbol map 'code-conversion-map-id) - (error "CCL: Invalid map: %s" map))) - (t - (error "CCL: Invalid type of arguments: %s" cmd)))) - nil) - -(defun ccl-compile-multiple-map-function (command cmd) - (if (< (length cmd) 4) - (error "CCL: Invalid number of arguments: %s" cmd)) - (let ((RRR (nth 1 cmd)) - (rrr (nth 2 cmd)) - (args (nthcdr 3 cmd)) - map) - (ccl-check-register rrr cmd) - (ccl-check-register RRR cmd) - (ccl-embed-extended-command command rrr RRR 0) - (ccl-embed-data (length args)) - (while args - (setq map (car args)) - (cond ((symbolp map) - (if (get map 'code-conversion-map) - (ccl-embed-symbol map 'code-conversion-map-id) - (error "CCL: Invalid map: %s" map))) - ((numberp map) - (ccl-embed-data map)) - (t - (error "CCL: Invalid type of arguments: %s" cmd))) - (setq args (cdr args))))) - - -;;; CCL dump staffs - -;; To avoid byte-compiler warning. -(defvar ccl-code) - -;;;###autoload -(defun ccl-dump (ccl-code) - "Disassemble compiled CCL-CODE." - (let ((len (length ccl-code)) - (buffer-mag (aref ccl-code 0))) - (cond ((= buffer-mag 0) - (insert "Don't output anything.\n")) - ((= buffer-mag 1) - (insert "Out-buffer must be as large as in-buffer.\n")) - (t - (insert - (format "Out-buffer must be %d times bigger than in-buffer.\n" - buffer-mag)))) - (insert "Main-body:\n") - (setq ccl-current-ic 2) - (if (> (aref ccl-code 1) 0) - (progn - (while (< ccl-current-ic (aref ccl-code 1)) - (ccl-dump-1)) - (insert "At EOF:\n"))) - (while (< ccl-current-ic len) - (ccl-dump-1)) - )) - -;; Return a CCL code in `ccl-code' at `ccl-current-ic'. -(defun ccl-get-next-code () - (prog1 - (aref ccl-code ccl-current-ic) - (setq ccl-current-ic (1+ ccl-current-ic)))) - -(defun ccl-dump-1 () - (let* ((code (ccl-get-next-code)) - (cmd (aref ccl-code-table (logand code 31))) - (rrr (ash (logand code 255) -5)) - (cc (ash code -8))) - (insert (format "%5d:[%s] " (1- ccl-current-ic) cmd)) - (funcall (get cmd 'ccl-dump-function) rrr cc))) - -(defun ccl-dump-set-register (rrr cc) - (insert (format "r%d = r%d\n" rrr cc))) - -(defun ccl-dump-set-short-const (rrr cc) - (insert (format "r%d = %d\n" rrr cc))) - -(defun ccl-dump-set-const (rrr ignore) - (insert (format "r%d = %d\n" rrr (ccl-get-next-code)))) - -(defun ccl-dump-set-array (rrr cc) - (let ((rrr2 (logand cc 7)) - (len (ash cc -3)) - (i 0)) - (insert (format "r%d = array[r%d] of length %d\n\t" - rrr rrr2 len)) - (while (< i len) - (insert (format "%d " (ccl-get-next-code))) - (setq i (1+ i))) - (insert "\n"))) - -(defun ccl-dump-jump (ignore cc &optional address) - (insert (format "jump to %d(" (+ (or address ccl-current-ic) cc))) - (if (>= cc 0) - (insert "+")) - (insert (format "%d)\n" (1+ cc)))) - -(defun ccl-dump-jump-cond (rrr cc) - (insert (format "if (r%d == 0), " rrr)) - (ccl-dump-jump nil cc)) - -(defun ccl-dump-write-register-jump (rrr cc) - (insert (format "write r%d, " rrr)) - (ccl-dump-jump nil cc)) - -(defun ccl-dump-write-register-read-jump (rrr cc) - (insert (format "write r%d, read r%d, " rrr rrr)) - (ccl-dump-jump nil cc) - (ccl-get-next-code) ; Skip dummy READ-JUMP - ) - -(defun ccl-extract-arith-op (cc) - (aref ccl-arith-table (ash cc -6))) - -(defun ccl-dump-write-expr-const (ignore cc) - (insert (format "write (r%d %s %d)\n" - (logand cc 7) - (ccl-extract-arith-op cc) - (ccl-get-next-code)))) - -(defun ccl-dump-write-expr-register (ignore cc) - (insert (format "write (r%d %s r%d)\n" - (logand cc 7) - (ccl-extract-arith-op cc) - (logand (ash cc -3) 7)))) - -(defun ccl-dump-insert-char (cc) - (cond ((= cc ?\t) (insert " \"^I\"")) - ((= cc ?\n) (insert " \"^J\"")) - (t (insert (format " \"%c\"" cc))))) - -(defun ccl-dump-write-const-jump (ignore cc) - (let ((address ccl-current-ic)) - (insert "write char") - (ccl-dump-insert-char (ccl-get-next-code)) - (insert ", ") - (ccl-dump-jump nil cc address))) - -(defun ccl-dump-write-const-read-jump (rrr cc) - (let ((address ccl-current-ic)) - (insert "write char") - (ccl-dump-insert-char (ccl-get-next-code)) - (insert (format ", read r%d, " rrr)) - (ccl-dump-jump cc address) - (ccl-get-next-code) ; Skip dummy READ-JUMP - )) - -(defun ccl-dump-write-string-jump (ignore cc) - (let ((address ccl-current-ic) - (len (ccl-get-next-code)) - (i 0)) - (insert "write \"") - (while (< i len) - (let ((code (ccl-get-next-code))) - (insert (ash code -16)) - (if (< (1+ i) len) (insert (logand (ash code -8) 255))) - (if (< (+ i 2) len) (insert (logand code 255)))) - (setq i (+ i 3))) - (insert "\", ") - (ccl-dump-jump nil cc address))) - -(defun ccl-dump-write-array-read-jump (rrr cc) - (let ((address ccl-current-ic) - (len (ccl-get-next-code)) - (i 0)) - (insert (format "write array[r%d] of length %d,\n\t" rrr len)) - (while (< i len) - (ccl-dump-insert-char (ccl-get-next-code)) - (setq i (1+ i))) - (insert (format "\n\tthen read r%d, " rrr)) - (ccl-dump-jump nil cc address) - (ccl-get-next-code) ; Skip dummy READ-JUMP. - )) - -(defun ccl-dump-read-jump (rrr cc) - (insert (format "read r%d, " rrr)) - (ccl-dump-jump nil cc)) - -(defun ccl-dump-branch (rrr len) - (let ((jump-table-head ccl-current-ic) - (i 0)) - (insert (format "jump to array[r%d] of length %d\n\t" rrr len)) - (while (<= i len) - (insert (format "%d " (+ jump-table-head (ccl-get-next-code)))) - (setq i (1+ i))) - (insert "\n"))) - -(defun ccl-dump-read-register (rrr cc) - (insert (format "read r%d (%d remaining)\n" rrr cc))) - -(defun ccl-dump-read-branch (rrr len) - (insert (format "read r%d, " rrr)) - (ccl-dump-branch rrr len)) - -(defun ccl-dump-write-register (rrr cc) - (insert (format "write r%d (%d remaining)\n" rrr cc))) - -(defun ccl-dump-call (ignore cc) - (insert (format "call subroutine #%d\n" cc))) - -(defun ccl-dump-write-const-string (rrr cc) - (if (= rrr 0) - (progn - (insert "write char") - (ccl-dump-insert-char cc) - (newline)) - (let ((len cc) - (i 0)) - (insert "write \"") - (while (< i len) - (let ((code (ccl-get-next-code))) - (insert (format "%c" (lsh code -16))) - (if (< (1+ i) len) - (insert (format "%c" (logand (lsh code -8) 255)))) - (if (< (+ i 2) len) - (insert (format "%c" (logand code 255)))) - (setq i (+ i 3)))) - (insert "\"\n")))) - -(defun ccl-dump-write-array (rrr cc) - (let ((i 0)) - (insert (format "write array[r%d] of length %d\n\t" rrr cc)) - (while (< i cc) - (ccl-dump-insert-char (ccl-get-next-code)) - (setq i (1+ i))) - (insert "\n"))) - -(defun ccl-dump-end (&rest ignore) - (insert "end\n")) - -(defun ccl-dump-set-assign-expr-const (rrr cc) - (insert (format "r%d %s= %d\n" - rrr - (ccl-extract-arith-op cc) - (ccl-get-next-code)))) - -(defun ccl-dump-set-assign-expr-register (rrr cc) - (insert (format "r%d %s= r%d\n" - rrr - (ccl-extract-arith-op cc) - (logand cc 7)))) - -(defun ccl-dump-set-expr-const (rrr cc) - (insert (format "r%d = r%d %s %d\n" - rrr - (logand cc 7) - (ccl-extract-arith-op cc) - (ccl-get-next-code)))) - -(defun ccl-dump-set-expr-register (rrr cc) - (insert (format "r%d = r%d %s r%d\n" - rrr - (logand cc 7) - (ccl-extract-arith-op cc) - (logand (ash cc -3) 7)))) - -(defun ccl-dump-jump-cond-expr-const (rrr cc) - (let ((address ccl-current-ic)) - (insert (format "if !(r%d %s %d), " - rrr - (aref ccl-arith-table (ccl-get-next-code)) - (ccl-get-next-code))) - (ccl-dump-jump nil cc address))) - -(defun ccl-dump-jump-cond-expr-register (rrr cc) - (let ((address ccl-current-ic)) - (insert (format "if !(r%d %s r%d), " - rrr - (aref ccl-arith-table (ccl-get-next-code)) - (ccl-get-next-code))) - (ccl-dump-jump nil cc address))) - -(defun ccl-dump-read-jump-cond-expr-const (rrr cc) - (insert (format "read r%d, " rrr)) - (ccl-dump-jump-cond-expr-const rrr cc)) - -(defun ccl-dump-read-jump-cond-expr-register (rrr cc) - (insert (format "read r%d, " rrr)) - (ccl-dump-jump-cond-expr-register rrr cc)) - -(defun ccl-dump-binary (ccl-code) - (let ((len (length ccl-code)) - (i 2)) - (while (< i len) - (let ((code (aref ccl-code i)) - (j 27)) - (while (>= j 0) - (insert (if (= (logand code (ash 1 j)) 0) ?0 ?1)) - (setq j (1- j))) - (setq code (logand code 31)) - (if (< code (length ccl-code-table)) - (insert (format ":%s" (aref ccl-code-table code)))) - (insert "\n")) - (setq i (1+ i))))) - -(defun ccl-dump-ex-cmd (rrr cc) - (let* ((RRR (logand cc #x7)) - (Rrr (logand (ash cc -3) #x7)) - (ex-op (aref ccl-extended-code-table (logand (ash cc -6) #x3fff)))) - (insert (format "<%s> " ex-op)) - (funcall (get ex-op 'ccl-dump-function) rrr RRR Rrr))) - -(defun ccl-dump-read-multibyte-character (rrr RRR Rrr) - (insert (format "read-multibyte-character r%d r%d\n" RRR rrr))) - -(defun ccl-dump-write-multibyte-character (rrr RRR Rrr) - (insert (format "write-multibyte-character r%d r%d\n" RRR rrr))) - -(defun ccl-dump-translate-character (rrr RRR Rrr) - (insert (format "translation table(r%d) r%d r%d\n" Rrr RRR rrr))) - -(defun ccl-dump-translate-character-const-tbl (rrr RRR Rrr) - (let ((tbl (ccl-get-next-code))) - (insert (format "translation table(%S) r%d r%d\n" tbl RRR rrr)))) - -(defun ccl-dump-lookup-int-const-tbl (rrr RRR Rrr) - (let ((tbl (ccl-get-next-code))) - (insert (format "hash table(%S) r%d r%d\n" tbl RRR rrr)))) - -(defun ccl-dump-lookup-char-const-tbl (rrr RRR Rrr) - (let ((tbl (ccl-get-next-code))) - (insert (format "hash table(%S) r%d r%d\n" tbl RRR rrr)))) - -(defun ccl-dump-mule-to-unicode (rrr RRR Rrr) - (insert (format "change chars in r%d and r%d to unicode\n" RRR rrr))) - -(defun ccl-dump-unicode-to-mule (rrr RRR Rrr) - (insert (format "converter UCS code %d to a Mule char\n" rrr))) - -(defun ccl-dump-iterate-multiple-map (rrr RRR Rrr) - (let ((notbl (ccl-get-next-code)) - (i 0) id) - (insert (format "iterate-multiple-map r%d r%d\n" RRR rrr)) - (insert (format "\tnumber of maps is %d .\n\t [" notbl)) - (while (< i notbl) - (setq id (ccl-get-next-code)) - (insert (format "%S" id)) - (setq i (1+ i))) - (insert "]\n"))) - -(defun ccl-dump-map-multiple (rrr RRR Rrr) - (let ((notbl (ccl-get-next-code)) - (i 0) id) - (insert (format "map-multiple r%d r%d\n" RRR rrr)) - (insert (format "\tnumber of maps and separators is %d\n\t [" notbl)) - (while (< i notbl) - (setq id (ccl-get-next-code)) - (if (= id -1) - (insert "]\n\t [") - (insert (format "%S " id))) - (setq i (1+ i))) - (insert "]\n"))) - -(defun ccl-dump-map-single (rrr RRR Rrr) - (let ((id (ccl-get-next-code))) - (insert (format "map-single r%d r%d map(%S)\n" RRR rrr id)))) - - -;; CCL emulation staffs - -;; Not yet implemented. - -;; Auto-loaded functions. - -;;;###autoload -(defmacro declare-ccl-program (name &optional vector) - "Declare NAME as a name of CCL program. - -This macro exists for backward compatibility. In the old version of -Emacs, to compile a CCL program which calls another CCL program not -yet defined, it must be declared as a CCL program in advance. But, -now CCL program names are resolved not at compile time but before -execution. - -Optional arg VECTOR is a compiled CCL code of the CCL program." - `(put ',name 'ccl-program-idx (register-ccl-program ',name ,vector))) - -;;;###autoload -(defmacro define-ccl-program (name ccl-program &optional doc) - "Set NAME to be the compiled CCL code of CCL-PROGRAM. - -CCL-PROGRAM has this form: - (BUFFER_MAGNIFICATION - CCL_MAIN_CODE - [ CCL_EOF_CODE ]) - -BUFFER_MAGNIFICATION is an integer value specifying the approximate -output buffer magnification size compared with the bytes of input data -text. If the value is zero, the CCL program can't execute `read' and -`write' commands. - -CCL_MAIN_CODE and CCL_EOF_CODE are CCL program codes. CCL_MAIN_CODE is -executed first. If there are no more input data when a `read' command is -executed in CCL_MAIN_CODE, CCL_EOF_CODE is executed. If CCL_MAIN_CODE is -terminated, CCL_EOF_CODE is not executed. - -Here's the syntax of CCL program code in BNF notation. The lines starting -with two semicolons (and optional leading spaces) describe the semantics. - -CCL_MAIN_CODE:= CCL_BLOCK - -CCL_EOF_CODE:= CCL_BLOCK - -CCL_BLOCK:= STATEMENT | (STATEMENT [STATEMENT ...]) - -STATEMENT:= - SET | IF | BRANCH | LOOP | REPEAT | BREAK | READ | WRITE | CALL - | TRANSLATE | MAP | LOOKUP | END - -SET:= (REG = EXPRESSION) - | (REG ASSIGNMENT_OPERATOR EXPRESSION) - ;; The following form is the same as (r0 = INT-OR-CHAR). - | INT-OR-CHAR - -EXPRESSION:= ARG | (EXPRESSION OPERATOR ARG) - -;; Evaluate EXPRESSION. If the result is nonzero, execute -;; CCL_BLOCK_0. Otherwise, execute CCL_BLOCK_1. -IF:= (if EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1]) - -;; Evaluate EXPRESSION. Provided that the result is N, execute -;; CCL_BLOCK_N. -BRANCH:= (branch EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1 ...]) - -;; Execute STATEMENTs until (break) or (end) is executed. -LOOP:= (loop STATEMENT [STATEMENT ...]) - -;; Terminate the innermost loop. -BREAK:= (break) - -REPEAT:= - ;; Jump to the head of the innermost loop. - (repeat) - ;; Same as: ((write [REG | INT-OR-CHAR | string]) - ;; (repeat)) - | (write-repeat [REG | INT-OR-CHAR | string]) - ;; Same as: ((write REG [ARRAY]) - ;; (read REG) - ;; (repeat)) - | (write-read-repeat REG [ARRAY]) - ;; Same as: ((write INT-OR-CHAR) - ;; (read REG) - ;; (repeat)) - | (write-read-repeat REG INT-OR-CHAR) - -READ:= ;; Set REG_0 to a byte read from the input text, set REG_1 - ;; to the next byte read, and so on. Note that \"byte\" here means - ;; \"some octet from XEmacs' internal representation\", which may - ;; not be that useful to you when non-ASCII characters are involved. - ;; - ;; Yes, this is exactly the opposite of what (write ...) does. - (read REG_0 [REG_1 ...]) - ;; Same as: ((read REG) - ;; (if (REG OPERATOR ARG) CCL_BLOCK_0 CCL_BLOCK_1)) - | (read-if (REG OPERATOR ARG) CCL_BLOCK_0 [CCL_BLOCK_1]) - ;; Same as: ((read REG) - ;; (branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...])) - | (read-branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...]) - ;; Read a character from the input text, splitting it into its - ;; multibyte representation. Set REG_0 to the charset ID of the - ;; character, and set REG_1 to the code point of the character. If - ;; the dimension of charset is two, set REG_1 to ((CODE0 << 7) | - ;; CODE1), where CODE0 is the first code point and CODE1 is the - ;; second code point. - | (read-multibyte-character REG_0 REG_1) - -WRITE:= - ;; Write REG_0, REG_1, ... to the output buffer. If REG_N is - ;; a multibyte character, write the corresponding multibyte - ;; representation. - (write REG_0 [REG_1 ...]) - ;; Same as: ((r7 = EXPRESSION) - ;; (write r7)) - | (write EXPRESSION) - ;; Write the value of `INT-OR-CHAR' to the output buffer. If it - ;; is a multibyte character, write the corresponding multibyte - ;; representation. - | (write INT-OR-CHAR) - ;; Write the byte sequence of `string' as is to the output - ;; buffer. It is encoded by binary coding system, thus, - ;; by this operation, you cannot write multibyte string - ;; as it is. - | (write string) - ;; Same as: (write string) - | string - ;; Provided that the value of REG is N, write Nth element of - ;; ARRAY to the output buffer. If it is a multibyte - ;; character, write the corresponding multibyte - ;; representation. - | (write REG ARRAY) - ;; Write a multibyte representation of a character whose - ;; charset ID is REG_0 and code point is REG_1. If the - ;; dimension of the charset is two, REG_1 should be ((CODE0 << - ;; 7) | CODE1), where CODE0 is the first code point and CODE1 - ;; is the second code point of the character. - | (write-multibyte-character REG_0 REG_1) - -;; Call CCL program whose name is ccl-program-name. -CALL:= (call ccl-program-name) - -TRANSLATE:= ;; Not implemented under XEmacs, except mule-to-unicode and - ;; unicode-to-mule. - (translate-character REG(table) REG(charset) REG(codepoint)) - | (translate-character SYMBOL REG(charset) REG(codepoint)) - | (mule-to-unicode REG(charset) REG(codepoint)) - | (unicode-to-mule REG(unicode,code) REG(CHARSET)) - -LOOKUP:= - (lookup-character SYMBOL REG(charset) REG(codepoint)) - | (lookup-integer SYMBOL REG(integer)) - ;; SYMBOL refers to a table defined by `define-hash-translation-table'. - -MAP:= - (iterate-multiple-map REG REG MAP-IDs) - | (map-multiple REG REG (MAP-SET)) - | (map-single REG REG MAP-ID) -MAP-IDs:= MAP-ID ... -MAP-SET:= MAP-IDs | (MAP-IDs) MAP-SET -MAP-ID:= INT-OR-CHAR - -;; Terminate the CCL program. -END:= (end) - -;; CCL registers. These can contain any integer value. As r7 is used by the -;; CCL interpreter itself, its value can change unexpectedly. -REG:= r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 - -ARG:= REG | INT-OR-CHAR - -OPERATOR:= - ;; Normal arithmetical operators (same meaning as C code). - + | - | * | / | % - - ;; Bitwise operators (same meaning as C code) - | & | `|' | ^ - - ;; Shifting operators (same meaning as C code) - | << | >> - - ;; (REG = ARG_0 <8 ARG_1) means: - ;; (REG = ((ARG_0 << 8) | ARG_1)) - | <8 - - ;; (REG = ARG_0 >8 ARG_1) means: - ;; ((REG = (ARG_0 >> 8)) - ;; (r7 = (ARG_0 & 255))) - | >8 - - ;; (REG = ARG_0 // ARG_1) means: - ;; ((REG = (ARG_0 / ARG_1)) - ;; (r7 = (ARG_0 % ARG_1))) - | // - - ;; Normal comparing operators (same meaning as C code) - | < | > | == | <= | >= | != - - ;; If ARG_0 and ARG_1 are higher and lower byte of Shift-JIS - ;; code, and CHAR is the corresponding JISX0208 character, - ;; (REG = ARG_0 de-sjis ARG_1) means: - ;; ((REG = CODE0) - ;; (r7 = CODE1)) - ;; where CODE0 is the first code point of CHAR, CODE1 is the - ;; second code point of CHAR. - | de-sjis - - ;; If ARG_0 and ARG_1 are the first and second code point of - ;; JISX0208 character CHAR, and SJIS is the correponding - ;; Shift-JIS code, - ;; (REG = ARG_0 en-sjis ARG_1) means: - ;; ((REG = HIGH) - ;; (r7 = LOW)) - ;; where HIGH is the higher byte of SJIS, LOW is the lower - ;; byte of SJIS. - | en-sjis - -ASSIGNMENT_OPERATOR:= - ;; Same meaning as C code - += | -= | *= | /= | %= | &= | `|=' | ^= | <<= | >>= - - ;; (REG <8= ARG) is the same as: - ;; ((REG <<= 8) - ;; (REG |= ARG)) - | <8= - - ;; (REG >8= ARG) is the same as: - ;; ((r7 = (REG & 255)) - ;; (REG >>= 8)) - - ;; (REG //= ARG) is the same as: - ;; ((r7 = (REG % ARG)) - ;; (REG /= ARG)) - | //= - -ARRAY:= `[' INT-OR-CHAR ... `]' - -INT-OR-CHAR:= integer | character -" - `(let ((prog ,(ccl-compile (eval ccl-program)))) - (defconst ,name prog ,doc) - (put ',name 'ccl-program-idx (register-ccl-program ',name prog)) - nil)) - -;;;###autoload -(defmacro check-ccl-program (ccl-program &optional name) - "Check validity of CCL-PROGRAM. -If CCL-PROGRAM is a symbol denoting a CCL program, return -CCL-PROGRAM, else return nil. -If CCL-PROGRAM is a vector and optional arg NAME (symbol) is supplied, -register CCL-PROGRAM by name NAME, and return NAME." - `(if (ccl-program-p ,ccl-program) - (if (vectorp ,ccl-program) - (progn - (register-ccl-program ,name ,ccl-program) - ,name) - ,ccl-program))) - -(provide 'ccl) - -;; ccl.el ends here \ No newline at end of file Index: lisp/mule/ccl.el =================================================================== RCS file: ccl.el diff -N ccl.el --- /dev/null Fri Jul 27 20:55:07 2007 +++ ccl.el Fri Jul 27 20:55:07 2007 ＠＠ -0,0 +1,1565 ＠＠ +;;; ccl.el --- CCL (Code Conversion Language) compiler -*- coding: iso-2022-7bit; -*- + +;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN. +;; Licensed to the Free Software Foundation. +;; Copyright (C) 2002, 2007 Free Software Foundation, Inc. + +;; Keywords: CCL, mule, multilingual, character set, coding-system + +;; This file is part of XEmacs. + +;; XEmacs is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 2, or (at your option) +;; any later version. + +;; XEmacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with XEmacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;; Synched up with: FSF 21.0.90 + +;;; Commentary: + +;; CCL (Code Conversion Language) is a simple programming language to +;; be used for various kind of code conversion. CCL program is +;; compiled to CCL code (vector of integers) and executed by CCL +;; interpreter of Emacs. +;; +;; CCL is used for code conversion at process I/O and file I/O for +;; non-standard coding-system. In addition, it is used for +;; calculating a code point of X's font from a character code. +;; However, since CCL is designed as a powerful programming language, +;; it can be used for more generic calculation. For instance, +;; combination of three or more arithmetic operations can be +;; calculated faster than Emacs Lisp. +;; +;; Syntax and semantics of CCL program is described in the +;; documentation of `define-ccl-program'. + +;;; Code: + +(defconst ccl-command-table + [if branch loop break repeat write-repeat write-read-repeat + read read-if read-branch write call end + read-multibyte-character write-multibyte-character + translate-character mule-to-unicode unicode-to-mule + iterate-multiple-map map-multiple map-single lookup-integer + lookup-character] + "Vector of CCL commands (symbols).") + +;; Put a property to each symbol of CCL commands for the compiler. +(let (op (i 0) (len (length ccl-command-table))) + (while (< i len) + (setq op (aref ccl-command-table i)) + (put op 'ccl-compile-function (intern (format "ccl-compile-%s" op))) + (setq i (1+ i)))) + +(defconst ccl-code-table + [set-register + set-short-const + set-const + set-array + jump + jump-cond + write-register-jump + write-register-read-jump + write-const-jump + write-const-read-jump + write-string-jump + write-array-read-jump + read-jump + branch + read-register + write-expr-const + read-branch + write-register + write-expr-register + call + write-const-string + write-array + end + set-assign-expr-const + set-assign-expr-register + set-expr-const + set-expr-register + jump-cond-expr-const + jump-cond-expr-register + read-jump-cond-expr-const + read-jump-cond-expr-register + ex-cmd + ] + "Vector of CCL compiled codes (symbols).") + +(defconst ccl-extended-code-table + [read-multibyte-character + write-multibyte-character + translate-character + translate-character-const-tbl + mule-to-unicode + unicode-to-mule + nil nil nil nil nil nil nil nil nil nil ; 0x06-0x0f + iterate-multiple-map + map-multiple + map-single + lookup-int-const-tbl + lookup-char-const-tbl + ] + "Vector of CCL extended compiled codes (symbols).") + +;; Put a property to each symbol of CCL codes for the disassembler. +(let (code (i 0) (len (length ccl-code-table))) + (while (< i len) + (setq code (aref ccl-code-table i)) + (put code 'ccl-code i) + (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code))) + (setq i (1+ i)))) + +(let (code (i 0) (len (length ccl-extended-code-table))) + (while (< i len) + (setq code (aref ccl-extended-code-table i)) + (if code + (progn + (put code 'ccl-ex-code i) + (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code))))) + (setq i (1+ i)))) + +(defconst ccl-jump-code-list + '(jump jump-cond write-register-jump write-register-read-jump + write-const-jump write-const-read-jump write-string-jump + write-array-read-jump read-jump)) + +;; Put a property `jump-flag' to each CCL code which execute jump in +;; some way. +(let ((l ccl-jump-code-list)) + (while l + (put (car l) 'jump-flag t) + (setq l (cdr l)))) + +(defconst ccl-register-table + [r0 r1 r2 r3 r4 r5 r6 r7] + "Vector of CCL registers (symbols).") + +;; Put a property to indicate register number to each symbol of CCL. +;; registers. +(let (reg (i 0) (len (length ccl-register-table))) + (while (< i len) + (setq reg (aref ccl-register-table i)) + (put reg 'ccl-register-number i) + (setq i (1+ i)))) + +(defconst ccl-arith-table + [+ - * / % & | ^ << >> <8 >8 // nil nil nil + < > == <= >= != de-sjis en-sjis] + "Vector of CCL arithmetic/logical operators (symbols).") + +;; Put a property to each symbol of CCL operators for the compiler. +(let (arith (i 0) (len (length ccl-arith-table))) + (while (< i len) + (setq arith (aref ccl-arith-table i)) + (if arith (put arith 'ccl-arith-code i)) + (setq i (1+ i)))) + +(defconst ccl-assign-arith-table + [+= -= *= /= %= &= |= ^= <<= >>= <8= >8= //=] + "Vector of CCL assignment operators (symbols).") + +;; Put a property to each symbol of CCL assignment operators for the compiler. +(let (arith (i 0) (len (length ccl-assign-arith-table))) + (while (< i len) + (setq arith (aref ccl-assign-arith-table i)) + (put arith 'ccl-self-arith-code i) + (setq i (1+ i)))) + +(defvar ccl-program-vector nil + "Working vector of CCL codes produced by CCL compiler.") +(defvar ccl-current-ic 0 + "The current index for `ccl-program-vector'.") + +;; Embed integer DATA in `ccl-program-vector' at `ccl-current-ic' and +;; increment it. If IC is specified, embed DATA at IC. +(defun ccl-embed-data (data &optional ic) + ;; XEmacs: Embed characters as characters, since their integer values vary at + ;; runtime. + ; (if (characterp data) + ; (setq data (char-int data))) + (if ic + (aset ccl-program-vector ic data) + (let ((len (length ccl-program-vector))) + (if (>= ccl-current-ic len) + (let ((new (make-vector (* len 2) nil))) + (while (> len 0) + (setq len (1- len)) + (aset new len (aref ccl-program-vector len))) + (setq ccl-program-vector new)))) + (aset ccl-program-vector ccl-current-ic data) + (setq ccl-current-ic (1+ ccl-current-ic)))) + +;; Embed pair of SYMBOL and PROP where (get SYMBOL PROP) should give +;; proper index number for SYMBOL. PROP should be +;; `translation-table-id', `translation-hash-table-id' +;; `code-conversion-map-id', or `ccl-program-idx'. +(defun ccl-embed-symbol (symbol prop) + (ccl-embed-data (cons symbol prop))) + +;; Embed string STR of length LEN in `ccl-program-vector' at +;; `ccl-current-ic'. +(defun ccl-embed-string (len str) + (let ((i 0)) + (while (< i len) + (ccl-embed-data (logior (ash (aref str i) 16) + (if (< (1+ i) len) + (ash (aref str (1+ i)) 8) + 0) + (if (< (+ i 2) len) + (aref str (+ i 2)) + 0))) + (setq i (+ i 3))))) + +;; Embed a relative jump address to `ccl-current-ic' in +;; `ccl-program-vector' at IC without altering the other bit field. +(defun ccl-embed-current-address (ic) + (let ((relative (- ccl-current-ic (1+ ic)))) + (aset ccl-program-vector ic + (logior (aref ccl-program-vector ic) (ash relative 8))))) + +;; Embed CCL code for the operation OP and arguments REG and DATA in +;; `ccl-program-vector' at `ccl-current-ic' in the following format. +;; |----------------- integer (28-bit) ------------------| +;; |------------ 20-bit ------------|- 3-bit --|- 5-bit -| +;; |------------- DATA -------------|-- REG ---|-- OP ---| +;; If REG2 is specified, embed a code in the following format. +;; |------- 17-bit ------|- 3-bit --|- 3-bit --|- 5-bit -| +;; |-------- DATA -------|-- REG2 --|-- REG ---|-- OP ---| + +;; If REG is a CCL register symbol (e.g. r0, r1...), the register +;; number is embedded. If OP is one of unconditional jumps, DATA is +;; changed to an relative jump address. + +(defun ccl-embed-code (op reg data &optional reg2) + (if (and (> data 0) (get op 'jump-flag)) + ;; DATA is an absolute jump address. Make it relative to the + ;; next of jump code. + (setq data (- data (1+ ccl-current-ic)))) + (let ((code (logior (get op 'ccl-code) + (ash + (if (symbolp reg) (get reg 'ccl-register-number) reg) 5) + (if reg2 + (logior (ash (get reg2 'ccl-register-number) 8) + (ash data 11)) + (ash data 8))))) + (ccl-embed-data code))) + +;; extended ccl command format +;; |- 14-bit -|- 3-bit --|- 3-bit --|- 3-bit --|- 5-bit -| +;; |- EX-OP --|-- REG3 --|-- REG2 --|-- REG ---|-- OP ---| +(defun ccl-embed-extended-command (ex-op reg reg2 reg3) + (let ((data (logior (ash (get ex-op 'ccl-ex-code) 3) + (if (symbolp reg3) + (get reg3 'ccl-register-number) + 0)))) + (ccl-embed-code 'ex-cmd reg data reg2))) + +;; Just advance `ccl-current-ic' by INC. +(defun ccl-increment-ic (inc) + (setq ccl-current-ic (+ ccl-current-ic inc))) + +;; If non-nil, index of the start of the current loop. +(defvar ccl-loop-head nil) +;; If non-nil, list of absolute addresses of the breaking points of +;; the current loop. +(defvar ccl-breaks nil) + +;;;###autoload +(defun ccl-compile (ccl-program) + "Return a compiled code of CCL-PROGRAM as a vector of integer." + (if (or (null (consp ccl-program)) + (null (integerp (car ccl-program))) + (null (listp (car (cdr ccl-program))))) + (error "CCL: Invalid CCL program: %s" ccl-program)) + (if (null (vectorp ccl-program-vector)) + (setq ccl-program-vector (make-vector 8192 0))) + (setq ccl-loop-head nil ccl-breaks nil) + (setq ccl-current-ic 0) + + ;; The first element is the buffer magnification. + (ccl-embed-data (car ccl-program)) + + ;; The second element is the address of the start CCL code for + ;; processing end of input buffer (we call it eof-processor). We + ;; set it later. + (ccl-increment-ic 1) + + ;; Compile the main body of the CCL program. + (ccl-compile-1 (car (cdr ccl-program))) + + ;; Embed the address of eof-processor. + (ccl-embed-data ccl-current-ic 1) + + ;; Then compile eof-processor. + (if (nth 2 ccl-program) + (ccl-compile-1 (nth 2 ccl-program))) + + ;; At last, embed termination code. + (ccl-embed-code 'end 0 0) + + (let ((vec (make-vector ccl-current-ic 0)) + (i 0)) + (while (< i ccl-current-ic) + (aset vec i (aref ccl-program-vector i)) + (setq i (1+ i))) + vec)) + +;; Signal syntax error. +(defun ccl-syntax-error (cmd) + (error "CCL: Syntax error: %s" cmd)) + +;; Check if ARG is a valid CCL register. +(defun ccl-check-register (arg cmd) + (if (get arg 'ccl-register-number) + arg + (error "CCL: Invalid register %s in %s." arg cmd))) + +;; Check if ARG is a valid CCL command. +(defun ccl-check-compile-function (arg cmd) + (or (get arg 'ccl-compile-function) + (error "CCL: Invalid command: %s" cmd))) + +;; In the following code, most ccl-compile-XXXX functions return t if +;; they end with unconditional jump, else return nil. + +;; Compile CCL-BLOCK (see the syntax above). +(defun ccl-compile-1 (ccl-block) + (let (unconditional-jump + cmd) + (if (or (integer-or-char-p ccl-block) + (stringp ccl-block) + (and ccl-block (symbolp (car ccl-block)))) + ;; This block consists of single statement. + (setq ccl-block (list ccl-block))) + + ;; Now CCL-BLOCK is a list of statements. Compile them one by + ;; one. + (while ccl-block + (setq cmd (car ccl-block)) + (setq unconditional-jump + (cond ((integer-or-char-p cmd) + ;; SET statement for the register 0. + (ccl-compile-set (list 'r0 '= cmd))) + + ((stringp cmd) + ;; WRITE statement of string argument. + (ccl-compile-write-string cmd)) + + ((listp cmd) + ;; The other statements. + (cond ((eq (nth 1 cmd) '=) + ;; SET statement of the form `(REG = EXPRESSION)'. + (ccl-compile-set cmd)) + + ((and (symbolp (nth 1 cmd)) + (get (nth 1 cmd) 'ccl-self-arith-code)) + ;; SET statement with an assignment operation. + (ccl-compile-self-set cmd)) + + (t + (funcall (ccl-check-compile-function (car cmd) cmd) + cmd)))) + + (t + (ccl-syntax-error cmd)))) + (setq ccl-block (cdr ccl-block))) + unconditional-jump)) + +(defconst ccl-max-short-const (ash 1 19)) +(defconst ccl-min-short-const (ash -1 19)) + +;; Compile SET statement. +(defun ccl-compile-set (cmd) + (let ((rrr (ccl-check-register (car cmd) cmd)) + (right (nth 2 cmd))) + (cond ((listp right) + ;; CMD has the form `(RRR = (XXX OP YYY))'. + (ccl-compile-expression rrr right)) + + ((integer-or-char-p right) + ;; CMD has the form `(RRR = integer)'. + (if (and (<= right ccl-max-short-const) + (>= right ccl-min-short-const)) + (ccl-embed-code 'set-short-const rrr right) + (ccl-embed-code 'set-const rrr 0) + (ccl-embed-data right))) + + (t + ;; CMD has the form `(RRR = rrr [ array ])'. + (ccl-check-register right cmd) + (let ((ary (nth 3 cmd))) + (if (vectorp ary) + (let ((i 0) (len (length ary))) + (ccl-embed-code 'set-array rrr len right) + (while (< i len) + (ccl-embed-data (aref ary i)) + (setq i (1+ i)))) + (ccl-embed-code 'set-register rrr 0 right)))))) + nil) + +;; Compile SET statement with ASSIGNMENT_OPERATOR. +(defun ccl-compile-self-set (cmd) + (let ((rrr (ccl-check-register (car cmd) cmd)) + (right (nth 2 cmd))) + (if (listp right) + ;; CMD has the form `(RRR ASSIGN_OP (XXX OP YYY))', compile + ;; the right hand part as `(r7 = (XXX OP YYY))' (note: the + ;; register 7 can be used for storing temporary value). + (progn + (ccl-compile-expression 'r7 right) + (setq right 'r7))) + ;; Now CMD has the form `(RRR ASSIGN_OP ARG)'. Compile it as + ;; `(RRR = (RRR OP ARG))'. + (ccl-compile-expression + rrr + (list rrr (intern (substring (symbol-name (nth 1 cmd)) 0 -1)) right))) + nil) + +;; Compile SET statement of the form `(RRR = EXPR)'. +(defun ccl-compile-expression (rrr expr) + (let ((left (car expr)) + (op (get (nth 1 expr) 'ccl-arith-code)) + (right (nth 2 expr))) + (if (listp left) + (progn + ;; EXPR has the form `((EXPR2 OP2 ARG) OP RIGHT)'. Compile + ;; the first term as `(r7 = (EXPR2 OP2 ARG)).' + (ccl-compile-expression 'r7 left) + (setq left 'r7))) + + ;; Now EXPR has the form (LEFT OP RIGHT). + (if (and (eq rrr left) + (< op (length ccl-assign-arith-table))) + ;; Compile this SET statement as `(RRR OP= RIGHT)'. + (if (integer-or-char-p right) + (progn + (ccl-embed-code 'set-assign-expr-const rrr (ash op 3) 'r0) + (ccl-embed-data right)) + (ccl-check-register right expr) + (ccl-embed-code 'set-assign-expr-register rrr (ash op 3) right)) + + ;; Compile this SET statement as `(RRR = (LEFT OP RIGHT))'. + (if (integer-or-char-p right) + (progn + (ccl-embed-code 'set-expr-const rrr (ash op 3) left) + (ccl-embed-data right)) + (ccl-check-register right expr) + (ccl-embed-code 'set-expr-register + rrr + (logior (ash op 3) (get right 'ccl-register-number)) + left))))) + +;; Compile WRITE statement with string argument. +(defun ccl-compile-write-string (str) + (setq str (encode-coding-string str 'binary)) + (let ((len (length str))) + (ccl-embed-code 'write-const-string 1 len) + (ccl-embed-string len str)) + nil) + +;; Compile IF statement of the form `(if CONDITION TRUE-PART FALSE-PART)'. +;; If READ-FLAG is non-nil, this statement has the form +;; `(read-if (REG OPERATOR ARG) TRUE-PART FALSE-PART)'. +(defun ccl-compile-if (cmd &optional read-flag) + (if (and (/= (length cmd) 3) (/= (length cmd) 4)) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((condition (nth 1 cmd)) + (true-cmds (nth 2 cmd)) + (false-cmds (nth 3 cmd)) + jump-cond-address) + (if (and (listp condition) + (listp (car condition))) + ;; If CONDITION is a nested expression, the inner expression + ;; should be compiled at first as SET statement, i.e.: + ;; `(if ((X OP2 Y) OP Z) ...)' is compiled into two statements: + ;; `(r7 = (X OP2 Y)) (if (r7 OP Z) ...)'. + (progn + (ccl-compile-expression 'r7 (car condition)) + (setq condition (cons 'r7 (cdr condition))) + (setq cmd (cons (car cmd) + (cons condition (cdr (cdr cmd))))))) + + (setq jump-cond-address ccl-current-ic) + ;; Compile CONDITION. + (if (symbolp condition) + ;; CONDITION is a register. + (progn + (ccl-check-register condition cmd) + (ccl-embed-code 'jump-cond condition 0)) + ;; CONDITION is a simple expression of the form (RRR OP ARG). + (let ((rrr (car condition)) + (op (get (nth 1 condition) 'ccl-arith-code)) + (arg (nth 2 condition))) + (ccl-check-register rrr cmd) + (if (integer-or-char-p arg) + (progn + (ccl-embed-code (if read-flag 'read-jump-cond-expr-const + 'jump-cond-expr-const) + rrr 0) + (ccl-embed-data op) + (ccl-embed-data arg)) + (ccl-check-register arg cmd) + (ccl-embed-code (if read-flag 'read-jump-cond-expr-register + 'jump-cond-expr-register) + rrr 0) + (ccl-embed-data op) + (ccl-embed-data (get arg 'ccl-register-number))))) + + ;; Compile TRUE-PART. + (let ((unconditional-jump (ccl-compile-1 true-cmds))) + (if (null false-cmds) + ;; This is the place to jump to if condition is false. + (progn + (ccl-embed-current-address jump-cond-address) + (setq unconditional-jump nil)) + (let (end-true-part-address) + (if (not unconditional-jump) + (progn + ;; If TRUE-PART does not end with unconditional jump, we + ;; have to jump to the end of FALSE-PART from here. + (setq end-true-part-address ccl-current-ic) + (ccl-embed-code 'jump 0 0))) + ;; This is the place to jump to if CONDITION is false. + (ccl-embed-current-address jump-cond-address) + ;; Compile FALSE-PART. + (setq unconditional-jump + (and (ccl-compile-1 false-cmds) unconditional-jump)) + (if end-true-part-address + ;; This is the place to jump to after the end of TRUE-PART. + (ccl-embed-current-address end-true-part-address)))) + unconditional-jump))) + +;; Compile BRANCH statement. +(defun ccl-compile-branch (cmd) + (if (< (length cmd) 3) + (error "CCL: Invalid number of arguments: %s" cmd)) + (ccl-compile-branch-blocks 'branch + (ccl-compile-branch-expression (nth 1 cmd) cmd) + (cdr (cdr cmd)))) + +;; Compile READ statement of the form `(read-branch EXPR BLOCK0 BLOCK1 ...)'. +(defun ccl-compile-read-branch (cmd) + (if (< (length cmd) 3) + (error "CCL: Invalid number of arguments: %s" cmd)) + (ccl-compile-branch-blocks 'read-branch + (ccl-compile-branch-expression (nth 1 cmd) cmd) + (cdr (cdr cmd)))) + +;; Compile EXPRESSION part of BRANCH statement and return register +;; which holds a value of the expression. +(defun ccl-compile-branch-expression (expr cmd) + (if (listp expr) + ;; EXPR has the form `(EXPR2 OP ARG)'. Compile it as SET + ;; statement of the form `(r7 = (EXPR2 OP ARG))'. + (progn + (ccl-compile-expression 'r7 expr) + 'r7) + (ccl-check-register expr cmd))) + +;; Compile BLOCKs of BRANCH statement. CODE is 'branch or 'read-branch. +;; REG is a register which holds a value of EXPRESSION part. BLOCKs +;; is a list of CCL-BLOCKs. +(defun ccl-compile-branch-blocks (code rrr blocks) + (let ((branches (length blocks)) + branch-idx + jump-table-head-address + empty-block-indexes + block-tail-addresses + block-unconditional-jump) + (ccl-embed-code code rrr branches) + (setq jump-table-head-address ccl-current-ic) + ;; The size of jump table is the number of blocks plus 1 (for the + ;; case RRR is out of range). + (ccl-increment-ic (1+ branches)) + (setq empty-block-indexes (list branches)) + ;; Compile each block. + (setq branch-idx 0) + (while blocks + (if (null (car blocks)) + ;; This block is empty. + (setq empty-block-indexes (cons branch-idx empty-block-indexes) + block-unconditional-jump t) + ;; This block is not empty. + (ccl-embed-data (- ccl-current-ic jump-table-head-address) + (+ jump-table-head-address branch-idx)) + (setq block-unconditional-jump (ccl-compile-1 (car blocks))) + (if (not block-unconditional-jump) + (progn + ;; Jump address of the end of branches are embedded later. + ;; For the moment, just remember where to embed them. + (setq block-tail-addresses + (cons ccl-current-ic block-tail-addresses)) + (ccl-embed-code 'jump 0 0)))) + (setq branch-idx (1+ branch-idx)) + (setq blocks (cdr blocks))) + (if (not block-unconditional-jump) + ;; We don't need jump code at the end of the last block. + (setq block-tail-addresses (cdr block-tail-addresses) + ccl-current-ic (1- ccl-current-ic))) + ;; Embed jump address at the tailing jump commands of blocks. + (while block-tail-addresses + (ccl-embed-current-address (car block-tail-addresses)) + (setq block-tail-addresses (cdr block-tail-addresses))) + ;; For empty blocks, make entries in the jump table point directly here. + (while empty-block-indexes + (ccl-embed-data (- ccl-current-ic jump-table-head-address) + (+ jump-table-head-address (car empty-block-indexes))) + (setq empty-block-indexes (cdr empty-block-indexes)))) + ;; Branch command ends by unconditional jump if RRR is out of range. + nil) + +;; Compile LOOP statement. +(defun ccl-compile-loop (cmd) + (if (< (length cmd) 2) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let* ((ccl-loop-head ccl-current-ic) + (ccl-breaks nil) + unconditional-jump) + (setq cmd (cdr cmd)) + (if cmd + (progn + (setq unconditional-jump t) + (while cmd + (setq unconditional-jump + (and (ccl-compile-1 (car cmd)) unconditional-jump)) + (setq cmd (cdr cmd))) + (if (not ccl-breaks) + unconditional-jump + ;; Embed jump address for break statements encountered in + ;; this loop. + (while ccl-breaks + (ccl-embed-current-address (car ccl-breaks)) + (setq ccl-breaks (cdr ccl-breaks)))) + nil)))) + +;; Compile BREAK statement. +(defun ccl-compile-break (cmd) + (if (/= (length cmd) 1) + (error "CCL: Invalid number of arguments: %s" cmd)) + (if (null ccl-loop-head) + (error "CCL: No outer loop: %s" cmd)) + (setq ccl-breaks (cons ccl-current-ic ccl-breaks)) + (ccl-embed-code 'jump 0 0) + t) + +;; Compile REPEAT statement. +(defun ccl-compile-repeat (cmd) + (if (/= (length cmd) 1) + (error "CCL: Invalid number of arguments: %s" cmd)) + (if (null ccl-loop-head) + (error "CCL: No outer loop: %s" cmd)) + (ccl-embed-code 'jump 0 ccl-loop-head) + t) + +;; Compile WRITE-REPEAT statement. +(defun ccl-compile-write-repeat (cmd) + (if (/= (length cmd) 2) + (error "CCL: Invalid number of arguments: %s" cmd)) + (if (null ccl-loop-head) + (error "CCL: No outer loop: %s" cmd)) + (let ((arg (nth 1 cmd))) + (cond ((integer-or-char-p arg) + (ccl-embed-code 'write-const-jump 0 ccl-loop-head) + (ccl-embed-data arg)) + ((stringp arg) + (setq arg (encode-coding-string arg 'binary)) + (let ((len (length arg))) + (ccl-embed-code 'write-string-jump 0 ccl-loop-head) + (ccl-embed-data len) + (ccl-embed-string len arg))) + (t + (ccl-check-register arg cmd) + (ccl-embed-code 'write-register-jump arg ccl-loop-head)))) + t) + +;; Compile WRITE-READ-REPEAT statement. +(defun ccl-compile-write-read-repeat (cmd) + (if (or (< (length cmd) 2) (> (length cmd) 3)) + (error "CCL: Invalid number of arguments: %s" cmd)) + (if (null ccl-loop-head) + (error "CCL: No outer loop: %s" cmd)) + (let ((rrr (ccl-check-register (nth 1 cmd) cmd)) + (arg (nth 2 cmd))) + (cond ((null arg) + (ccl-embed-code 'write-register-read-jump rrr ccl-loop-head)) + ((integer-or-char-p arg) + (ccl-embed-code 'write-const-read-jump rrr arg ccl-loop-head)) + ((vectorp arg) + (let ((len (length arg)) + (i 0)) + (ccl-embed-code 'write-array-read-jump rrr ccl-loop-head) + (ccl-embed-data len) + (while (< i len) + (ccl-embed-data (aref arg i)) + (setq i (1+ i))))) + (t + (error "CCL: Invalid argument %s: %s" arg cmd))) + (ccl-embed-code 'read-jump rrr ccl-loop-head)) + t) + +;; Compile READ statement. +(defun ccl-compile-read (cmd) + (if (< (length cmd) 2) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let* ((args (cdr cmd)) + (i (1- (length args)))) + (while args + (let ((rrr (ccl-check-register (car args) cmd))) + (ccl-embed-code 'read-register rrr i) + (setq args (cdr args) i (1- i))))) + nil) + +;; Compile READ-IF statement. +(defun ccl-compile-read-if (cmd) + (ccl-compile-if cmd 'read)) + +;; Compile WRITE statement. +(defun ccl-compile-write (cmd) + (if (< (length cmd) 2) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((rrr (nth 1 cmd))) + (cond ((integer-or-char-p rrr) + (ccl-embed-code 'write-const-string 0 rrr)) + ((stringp rrr) + (ccl-compile-write-string rrr)) + ((and (symbolp rrr) (vectorp (nth 2 cmd))) + (ccl-check-register rrr cmd) + ;; CMD has the form `(write REG ARRAY)'. + (let* ((arg (nth 2 cmd)) + (len (length arg)) + (i 0)) + (ccl-embed-code 'write-array rrr len) + (while (< i len) + (if (not (integer-or-char-p (aref arg i))) + (error "CCL: Invalid argument %s: %s" arg cmd)) + (ccl-embed-data (aref arg i)) + (setq i (1+ i))))) + + ((symbolp rrr) + ;; CMD has the form `(write REG ...)'. + (let* ((args (cdr cmd)) + (i (1- (length args)))) + (while args + (setq rrr (ccl-check-register (car args) cmd)) + (ccl-embed-code 'write-register rrr i) + (setq args (cdr args) i (1- i))))) + + ((listp rrr) + ;; CMD has the form `(write (LEFT OP RIGHT))'. + (let ((left (car rrr)) + (op (get (nth 1 rrr) 'ccl-arith-code)) + (right (nth 2 rrr))) + (if (listp left) + (progn + ;; RRR has the form `((EXPR OP2 ARG) OP RIGHT)'. + ;; Compile the first term as `(r7 = (EXPR OP2 ARG))'. + (ccl-compile-expression 'r7 left) + (setq left 'r7))) + ;; Now RRR has the form `(ARG OP RIGHT)'. + (if (integer-or-char-p right) + (progn + (ccl-embed-code 'write-expr-const 0 (ash op 3) left) + (ccl-embed-data right)) + (ccl-check-register right rrr) + (ccl-embed-code 'write-expr-register 0 + (logior (ash op 3) + (get right 'ccl-register-number)))))) + + (t + (error "CCL: Invalid argument: %s" cmd)))) + nil) + +;; Compile CALL statement. +(defun ccl-compile-call (cmd) + (if (/= (length cmd) 2) + (error "CCL: Invalid number of arguments: %s" cmd)) + (if (not (symbolp (nth 1 cmd))) + (error "CCL: Subroutine should be a symbol: %s" cmd)) + (ccl-embed-code 'call 1 0) + (ccl-embed-symbol (nth 1 cmd) 'ccl-program-idx) + nil) + +;; Compile END statement. +(defun ccl-compile-end (cmd) + (if (/= (length cmd) 1) + (error "CCL: Invalid number of arguments: %s" cmd)) + (ccl-embed-code 'end 0 0) + t) + +;; Compile read-multibyte-character +(defun ccl-compile-read-multibyte-character (cmd) + (if (/= (length cmd) 3) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((RRR (nth 1 cmd)) + (rrr (nth 2 cmd))) + (ccl-check-register rrr cmd) + (ccl-check-register RRR cmd) + (ccl-embed-extended-command 'read-multibyte-character rrr RRR 0)) + nil) + +;; Compile write-multibyte-character +(defun ccl-compile-write-multibyte-character (cmd) + (if (/= (length cmd) 3) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((RRR (nth 1 cmd)) + (rrr (nth 2 cmd))) + (ccl-check-register rrr cmd) + (ccl-check-register RRR cmd) + (ccl-embed-extended-command 'write-multibyte-character rrr RRR 0)) + nil) + +;; Compile translate-character +(defun ccl-compile-translate-character (cmd) + (if (/= (length cmd) 4) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((Rrr (nth 1 cmd)) + (RRR (nth 2 cmd)) + (rrr (nth 3 cmd))) + (ccl-check-register rrr cmd) + (ccl-check-register RRR cmd) + (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number))) + (ccl-embed-extended-command 'translate-character-const-tbl + rrr RRR 0) + (ccl-embed-symbol Rrr 'translation-table-id)) + (t + (ccl-check-register Rrr cmd) + (ccl-embed-extended-command 'translate-character rrr RRR Rrr)))) + nil) + +;; Compile mule-to-unicode +(defun ccl-compile-mule-to-unicode (cmd) + (if (/= (length cmd) 3) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((RRR (nth 1 cmd)) + (rrr (nth 2 cmd))) + (ccl-check-register RRR cmd) + (ccl-check-register rrr cmd) + (ccl-embed-extended-command 'mule-to-unicode RRR rrr 0)) + nil) + +;; Given a Unicode code point in register rrr, write the charset ID of the +;; corresponding character in RRR, and the Mule-CCL form of its code in rrr. +(defun ccl-compile-unicode-to-mule (cmd) + (if (/= (length cmd) 3) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((rrr (nth 1 cmd)) + (RRR (nth 2 cmd))) + (ccl-check-register rrr cmd) + (ccl-check-register RRR cmd) + (ccl-embed-extended-command 'unicode-to-mule rrr RRR 0)) + nil) + +;; Compile lookup-integer +(defun ccl-compile-lookup-integer (cmd) + (if (/= (length cmd) 4) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((Rrr (nth 1 cmd)) + (RRR (nth 2 cmd)) + (rrr (nth 3 cmd))) + (ccl-check-register RRR cmd) + (ccl-check-register rrr cmd) + (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number))) + (ccl-embed-extended-command 'lookup-int-const-tbl + rrr RRR 0) + (ccl-embed-symbol Rrr 'translation-hash-table-id)) + (t + (error "CCL: non-constant table: %s" cmd) + ;; not implemented: + (ccl-check-register Rrr cmd) + (ccl-embed-extended-command 'lookup-int rrr RRR 0)))) + nil) + +;; Compile lookup-character +(defun ccl-compile-lookup-character (cmd) + (if (/= (length cmd) 4) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((Rrr (nth 1 cmd)) + (RRR (nth 2 cmd)) + (rrr (nth 3 cmd))) + (ccl-check-register RRR cmd) + (ccl-check-register rrr cmd) + (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number))) + (ccl-embed-extended-command 'lookup-char-const-tbl + rrr RRR 0) + (ccl-embed-symbol Rrr 'translation-hash-table-id)) + (t + (error "CCL: non-constant table: %s" cmd) + ;; not implemented: + (ccl-check-register Rrr cmd) + (ccl-embed-extended-command 'lookup-char rrr RRR 0)))) + nil) + +(defun ccl-compile-iterate-multiple-map (cmd) + (ccl-compile-multiple-map-function 'iterate-multiple-map cmd) + nil) + +(defun ccl-compile-map-multiple (cmd) + (if (/= (length cmd) 4) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let (func arg) + (setq func + (lambda (arg mp) + (let ((len 0) result add) + (while arg + (if (consp (car arg)) + (setq add (funcall func (car arg) t) + result (append result add) + add (+ (- (car add)) 1)) + (setq result + (append result + (list (car arg))) + add 1)) + (setq arg (cdr arg) + len (+ len add))) + (if mp + (cons (- len) result) + result)))) + (setq arg (append (list (nth 0 cmd) (nth 1 cmd) (nth 2 cmd)) + (funcall func (nth 3 cmd) nil))) + (ccl-compile-multiple-map-function 'map-multiple arg)) + nil) + +(defun ccl-compile-map-single (cmd) + (if (/= (length cmd) 4) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((RRR (nth 1 cmd)) + (rrr (nth 2 cmd)) + (map (nth 3 cmd))) + (ccl-check-register rrr cmd) + (ccl-check-register RRR cmd) + (ccl-embed-extended-command 'map-single rrr RRR 0) + (cond ((symbolp map) + (if (get map 'code-conversion-map) + (ccl-embed-symbol map 'code-conversion-map-id) + (error "CCL: Invalid map: %s" map))) + (t + (error "CCL: Invalid type of arguments: %s" cmd)))) + nil) + +(defun ccl-compile-multiple-map-function (command cmd) + (if (< (length cmd) 4) + (error "CCL: Invalid number of arguments: %s" cmd)) + (let ((RRR (nth 1 cmd)) + (rrr (nth 2 cmd)) + (args (nthcdr 3 cmd)) + map) + (ccl-check-register rrr cmd) + (ccl-check-register RRR cmd) + (ccl-embed-extended-command command rrr RRR 0) + (ccl-embed-data (length args)) + (while args + (setq map (car args)) + (cond ((symbolp map) + (if (get map 'code-conversion-map) + (ccl-embed-symbol map 'code-conversion-map-id) + (error "CCL: Invalid map: %s" map))) + ((numberp map) + (ccl-embed-data map)) + (t + (error "CCL: Invalid type of arguments: %s" cmd))) + (setq args (cdr args))))) + + +;;; CCL dump staffs + +;; To avoid byte-compiler warning. +(defvar ccl-code) + +;;;###autoload +(defun ccl-dump (ccl-code) + "Disassemble compiled CCL-CODE." + (let ((len (length ccl-code)) + (buffer-mag (aref ccl-code 0))) + (cond ((= buffer-mag 0) + (insert "Don't output anything.\n")) + ((= buffer-mag 1) + (insert "Out-buffer must be as large as in-buffer.\n")) + (t + (insert + (format "Out-buffer must be %d times bigger than in-buffer.\n" + buffer-mag)))) + (insert "Main-body:\n") + (setq ccl-current-ic 2) + (if (> (aref ccl-code 1) 0) + (progn + (while (< ccl-current-ic (aref ccl-code 1)) + (ccl-dump-1)) + (insert "At EOF:\n"))) + (while (< ccl-current-ic len) + (ccl-dump-1)) + )) + +;; Return a CCL code in `ccl-code' at `ccl-current-ic'. +(defun ccl-get-next-code () + (prog1 + (aref ccl-code ccl-current-ic) + (setq ccl-current-ic (1+ ccl-current-ic)))) + +(defun ccl-dump-1 () + (let* ((code (ccl-get-next-code)) + (cmd (aref ccl-code-table (logand code 31))) + (rrr (ash (logand code 255) -5)) + (cc (ash code -8))) + (insert (format "%5d:[%s] " (1- ccl-current-ic) cmd)) + (funcall (get cmd 'ccl-dump-function) rrr cc))) + +(defun ccl-dump-set-register (rrr cc) + (insert (format "r%d = r%d\n" rrr cc))) + +(defun ccl-dump-set-short-const (rrr cc) + (insert (format "r%d = %d\n" rrr cc))) + +(defun ccl-dump-set-const (rrr ignore) + (insert (format "r%d = %d\n" rrr (ccl-get-next-code)))) + +(defun ccl-dump-set-array (rrr cc) + (let ((rrr2 (logand cc 7)) + (len (ash cc -3)) + (i 0)) + (insert (format "r%d = array[r%d] of length %d\n\t" + rrr rrr2 len)) + (while (< i len) + (insert (format "%d " (ccl-get-next-code))) + (setq i (1+ i))) + (insert "\n"))) + +(defun ccl-dump-jump (ignore cc &optional address) + (insert (format "jump to %d(" (+ (or address ccl-current-ic) cc))) + (if (>= cc 0) + (insert "+")) + (insert (format "%d)\n" (1+ cc)))) + +(defun ccl-dump-jump-cond (rrr cc) + (insert (format "if (r%d == 0), " rrr)) + (ccl-dump-jump nil cc)) + +(defun ccl-dump-write-register-jump (rrr cc) + (insert (format "write r%d, " rrr)) + (ccl-dump-jump nil cc)) + +(defun ccl-dump-write-register-read-jump (rrr cc) + (insert (format "write r%d, read r%d, " rrr rrr)) + (ccl-dump-jump nil cc) + (ccl-get-next-code) ; Skip dummy READ-JUMP + ) + +(defun ccl-extract-arith-op (cc) + (aref ccl-arith-table (ash cc -6))) + +(defun ccl-dump-write-expr-const (ignore cc) + (insert (format "write (r%d %s %d)\n" + (logand cc 7) + (ccl-extract-arith-op cc) + (ccl-get-next-code)))) + +(defun ccl-dump-write-expr-register (ignore cc) + (insert (format "write (r%d %s r%d)\n" + (logand cc 7) + (ccl-extract-arith-op cc) + (logand (ash cc -3) 7)))) + +(defun ccl-dump-insert-char (cc) + (cond ((= cc ?\t) (insert " \"^I\"")) + ((= cc ?\n) (insert " \"^J\"")) + (t (insert (format " \"%c\"" cc))))) + +(defun ccl-dump-write-const-jump (ignore cc) + (let ((address ccl-current-ic)) + (insert "write char") + (ccl-dump-insert-char (ccl-get-next-code)) + (insert ", ") + (ccl-dump-jump nil cc address))) + +(defun ccl-dump-write-const-read-jump (rrr cc) + (let ((address ccl-current-ic)) + (insert "write char") + (ccl-dump-insert-char (ccl-get-next-code)) + (insert (format ", read r%d, " rrr)) + (ccl-dump-jump cc address) + (ccl-get-next-code) ; Skip dummy READ-JUMP + )) + +(defun ccl-dump-write-string-jump (ignore cc) + (let ((address ccl-current-ic) + (len (ccl-get-next-code)) + (i 0)) + (insert "write \"") + (while (< i len) + (let ((code (ccl-get-next-code))) + (insert (ash code -16)) + (if (< (1+ i) len) (insert (logand (ash code -8) 255))) + (if (< (+ i 2) len) (insert (logand code 255)))) + (setq i (+ i 3))) + (insert "\", ") + (ccl-dump-jump nil cc address))) + +(defun ccl-dump-write-array-read-jump (rrr cc) + (let ((address ccl-current-ic) + (len (ccl-get-next-code)) + (i 0)) + (insert (format "write array[r%d] of length %d,\n\t" rrr len)) + (while (< i len) + (ccl-dump-insert-char (ccl-get-next-code)) + (setq i (1+ i))) + (insert (format "\n\tthen read r%d, " rrr)) + (ccl-dump-jump nil cc address) + (ccl-get-next-code) ; Skip dummy READ-JUMP. + )) + +(defun ccl-dump-read-jump (rrr cc) + (insert (format "read r%d, " rrr)) + (ccl-dump-jump nil cc)) + +(defun ccl-dump-branch (rrr len) + (let ((jump-table-head ccl-current-ic) + (i 0)) + (insert (format "jump to array[r%d] of length %d\n\t" rrr len)) + (while (<= i len) + (insert (format "%d " (+ jump-table-head (ccl-get-next-code)))) + (setq i (1+ i))) + (insert "\n"))) + +(defun ccl-dump-read-register (rrr cc) + (insert (format "read r%d (%d remaining)\n" rrr cc))) + +(defun ccl-dump-read-branch (rrr len) + (insert (format "read r%d, " rrr)) + (ccl-dump-branch rrr len)) + +(defun ccl-dump-write-register (rrr cc) + (insert (format "write r%d (%d remaining)\n" rrr cc))) + +(defun ccl-dump-call (ignore cc) + (insert (format "call subroutine #%d\n" cc))) + +(defun ccl-dump-write-const-string (rrr cc) + (if (= rrr 0) + (progn + (insert "write char") + (ccl-dump-insert-char cc) + (newline)) + (let ((len cc) + (i 0)) + (insert "write \"") + (while (< i len) + (let ((code (ccl-get-next-code))) + (insert (format "%c" (lsh code -16))) + (if (< (1+ i) len) + (insert (format "%c" (logand (lsh code -8) 255)))) + (if (< (+ i 2) len) + (insert (format "%c" (logand code 255)))) + (setq i (+ i 3)))) + (insert "\"\n")))) + +(defun ccl-dump-write-array (rrr cc) + (let ((i 0)) + (insert (format "write array[r%d] of length %d\n\t" rrr cc)) + (while (< i cc) + (ccl-dump-insert-char (ccl-get-next-code)) + (setq i (1+ i))) + (insert "\n"))) + +(defun ccl-dump-end (&rest ignore) + (insert "end\n")) + +(defun ccl-dump-set-assign-expr-const (rrr cc) + (insert (format "r%d %s= %d\n" + rrr + (ccl-extract-arith-op cc) + (ccl-get-next-code)))) + +(defun ccl-dump-set-assign-expr-register (rrr cc) + (insert (format "r%d %s= r%d\n" + rrr + (ccl-extract-arith-op cc) + (logand cc 7)))) + +(defun ccl-dump-set-expr-const (rrr cc) + (insert (format "r%d = r%d %s %d\n" + rrr + (logand cc 7) + (ccl-extract-arith-op cc) + (ccl-get-next-code)))) + +(defun ccl-dump-set-expr-register (rrr cc) + (insert (format "r%d = r%d %s r%d\n" + rrr + (logand cc 7) + (ccl-extract-arith-op cc) + (logand (ash cc -3) 7)))) + +(defun ccl-dump-jump-cond-expr-const (rrr cc) + (let ((address ccl-current-ic)) + (insert (format "if !(r%d %s %d), " + rrr + (aref ccl-arith-table (ccl-get-next-code)) + (ccl-get-next-code))) + (ccl-dump-jump nil cc address))) + +(defun ccl-dump-jump-cond-expr-register (rrr cc) + (let ((address ccl-current-ic)) + (insert (format "if !(r%d %s r%d), " + rrr + (aref ccl-arith-table (ccl-get-next-code)) + (ccl-get-next-code))) + (ccl-dump-jump nil cc address))) + +(defun ccl-dump-read-jump-cond-expr-const (rrr cc) + (insert (format "read r%d, " rrr)) + (ccl-dump-jump-cond-expr-const rrr cc)) + +(defun ccl-dump-read-jump-cond-expr-register (rrr cc) + (insert (format "read r%d, " rrr)) + (ccl-dump-jump-cond-expr-register rrr cc)) + +(defun ccl-dump-binary (ccl-code) + (let ((len (length ccl-code)) + (i 2)) + (while (< i len) + (let ((code (aref ccl-code i)) + (j 27)) + (while (>= j 0) + (insert (if (= (logand code (ash 1 j)) 0) ?0 ?1)) + (setq j (1- j))) + (setq code (logand code 31)) + (if (< code (length ccl-code-table)) + (insert (format ":%s" (aref ccl-code-table code)))) + (insert "\n")) + (setq i (1+ i))))) + +(defun ccl-dump-ex-cmd (rrr cc) + (let* ((RRR (logand cc #x7)) + (Rrr (logand (ash cc -3) #x7)) + (ex-op (aref ccl-extended-code-table (logand (ash cc -6) #x3fff)))) + (insert (format "<%s> " ex-op)) + (funcall (get ex-op 'ccl-dump-function) rrr RRR Rrr))) + +(defun ccl-dump-read-multibyte-character (rrr RRR Rrr) + (insert (format "read-multibyte-character r%d r%d\n" RRR rrr))) + +(defun ccl-dump-write-multibyte-character (rrr RRR Rrr) + (insert (format "write-multibyte-character r%d r%d\n" RRR rrr))) + +(defun ccl-dump-translate-character (rrr RRR Rrr) + (insert (format "translation table(r%d) r%d r%d\n" Rrr RRR rrr))) + +(defun ccl-dump-translate-character-const-tbl (rrr RRR Rrr) + (let ((tbl (ccl-get-next-code))) + (insert (format "translation table(%S) r%d r%d\n" tbl RRR rrr)))) + +(defun ccl-dump-lookup-int-const-tbl (rrr RRR Rrr) + (let ((tbl (ccl-get-next-code))) + (insert (format "hash table(%S) r%d r%d\n" tbl RRR rrr)))) + +(defun ccl-dump-lookup-char-const-tbl (rrr RRR Rrr) + (let ((tbl (ccl-get-next-code))) + (insert (format "hash table(%S) r%d r%d\n" tbl RRR rrr)))) + +(defun ccl-dump-mule-to-unicode (rrr RRR Rrr) + (insert (format "change chars in r%d and r%d to unicode\n" RRR rrr))) + +(defun ccl-dump-unicode-to-mule (rrr RRR Rrr) + (insert (format "converter UCS code %d to a Mule char\n" rrr))) + +(defun ccl-dump-iterate-multiple-map (rrr RRR Rrr) + (let ((notbl (ccl-get-next-code)) + (i 0) id) + (insert (format "iterate-multiple-map r%d r%d\n" RRR rrr)) + (insert (format "\tnumber of maps is %d .\n\t [" notbl)) + (while (< i notbl) + (setq id (ccl-get-next-code)) + (insert (format "%S" id)) + (setq i (1+ i))) + (insert "]\n"))) + +(defun ccl-dump-map-multiple (rrr RRR Rrr) + (let ((notbl (ccl-get-next-code)) + (i 0) id) + (insert (format "map-multiple r%d r%d\n" RRR rrr)) + (insert (format "\tnumber of maps and separators is %d\n\t [" notbl)) + (while (< i notbl) + (setq id (ccl-get-next-code)) + (if (= id -1) + (insert "]\n\t [") + (insert (format "%S " id))) + (setq i (1+ i))) + (insert "]\n"))) + +(defun ccl-dump-map-single (rrr RRR Rrr) + (let ((id (ccl-get-next-code))) + (insert (format "map-single r%d r%d map(%S)\n" RRR rrr id)))) + + +;; CCL emulation staffs + +;; Not yet implemented. + +;; Auto-loaded functions. + +;;;###autoload +(defmacro declare-ccl-program (name &optional vector) + "Declare NAME as a name of CCL program. + +This macro exists for backward compatibility. In the old version of +Emacs, to compile a CCL program which calls another CCL program not +yet defined, it must be declared as a CCL program in advance. But, +now CCL program names are resolved not at compile time but before +execution. + +Optional arg VECTOR is a compiled CCL code of the CCL program." + `(put ',name 'ccl-program-idx (register-ccl-program ',name ,vector))) + +;;;###autoload +(defmacro define-ccl-program (name ccl-program &optional doc) + "Set NAME to be the compiled CCL code of CCL-PROGRAM. + +CCL-PROGRAM has this form: + (BUFFER_MAGNIFICATION + CCL_MAIN_CODE + [ CCL_EOF_CODE ]) + +BUFFER_MAGNIFICATION is an integer value specifying the approximate +output buffer magnification size compared with the bytes of input data +text. If the value is zero, the CCL program can't execute `read' and +`write' commands. + +CCL_MAIN_CODE and CCL_EOF_CODE are CCL program codes. CCL_MAIN_CODE is +executed first. If there are no more input data when a `read' command is +executed in CCL_MAIN_CODE, CCL_EOF_CODE is executed. If CCL_MAIN_CODE is +terminated, CCL_EOF_CODE is not executed. + +Here's the syntax of CCL program code in BNF notation. The lines starting +with two semicolons (and optional leading spaces) describe the semantics. + +CCL_MAIN_CODE:= CCL_BLOCK + +CCL_EOF_CODE:= CCL_BLOCK + +CCL_BLOCK:= STATEMENT | (STATEMENT [STATEMENT ...]) + +STATEMENT:= + SET | IF | BRANCH | LOOP | REPEAT | BREAK | READ | WRITE | CALL + | TRANSLATE | MAP | LOOKUP | END + +SET:= (REG = EXPRESSION) + | (REG ASSIGNMENT_OPERATOR EXPRESSION) + ;; The following form is the same as (r0 = INT-OR-CHAR). + | INT-OR-CHAR + +EXPRESSION:= ARG | (EXPRESSION OPERATOR ARG) + +;; Evaluate EXPRESSION. If the result is nonzero, execute +;; CCL_BLOCK_0. Otherwise, execute CCL_BLOCK_1. +IF:= (if EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1]) + +;; Evaluate EXPRESSION. Provided that the result is N, execute +;; CCL_BLOCK_N. +BRANCH:= (branch EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1 ...]) + +;; Execute STATEMENTs until (break) or (end) is executed. +LOOP:= (loop STATEMENT [STATEMENT ...]) + +;; Terminate the innermost loop. +BREAK:= (break) + +REPEAT:= + ;; Jump to the head of the innermost loop. + (repeat) + ;; Same as: ((write [REG | INT-OR-CHAR | string]) + ;; (repeat)) + | (write-repeat [REG | INT-OR-CHAR | string]) + ;; Same as: ((write REG [ARRAY]) + ;; (read REG) + ;; (repeat)) + | (write-read-repeat REG [ARRAY]) + ;; Same as: ((write INT-OR-CHAR) + ;; (read REG) + ;; (repeat)) + | (write-read-repeat REG INT-OR-CHAR) + +READ:= ;; Set REG_0 to a byte read from the input text, set REG_1 + ;; to the next byte read, and so on. Note that \"byte\" here means + ;; \"some octet from XEmacs' internal representation\", which may + ;; not be that useful to you when non-ASCII characters are involved. + ;; + ;; Yes, this is exactly the opposite of what (write ...) does. + (read REG_0 [REG_1 ...]) + ;; Same as: ((read REG) + ;; (if (REG OPERATOR ARG) CCL_BLOCK_0 CCL_BLOCK_1)) + | (read-if (REG OPERATOR ARG) CCL_BLOCK_0 [CCL_BLOCK_1]) + ;; Same as: ((read REG) + ;; (branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...])) + | (read-branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...]) + ;; Read a character from the input text, splitting it into its + ;; multibyte representation. Set REG_0 to the charset ID of the + ;; character, and set REG_1 to the code point of the character. If + ;; the dimension of charset is two, set REG_1 to ((CODE0 << 7) | + ;; CODE1), where CODE0 is the first code point and CODE1 is the + ;; second code point. + | (read-multibyte-character REG_0 REG_1) + +WRITE:= + ;; Write REG_0, REG_1, ... to the output buffer. If REG_N is + ;; a multibyte character, write the corresponding multibyte + ;; representation. + (write REG_0 [REG_1 ...]) + ;; Same as: ((r7 = EXPRESSION) + ;; (write r7)) + | (write EXPRESSION) + ;; Write the value of `INT-OR-CHAR' to the output buffer. If it + ;; is a multibyte character, write the corresponding multibyte + ;; representation. + | (write INT-OR-CHAR) + ;; Write the byte sequence of `string' as is to the output + ;; buffer. It is encoded by binary coding system, thus, + ;; by this operation, you cannot write multibyte string + ;; as it is. + | (write string) + ;; Same as: (write string) + | string + ;; Provided that the value of REG is N, write Nth element of + ;; ARRAY to the output buffer. If it is a multibyte + ;; character, write the corresponding multibyte + ;; representation. + | (write REG ARRAY) + ;; Write a multibyte representation of a character whose + ;; charset ID is REG_0 and code point is REG_1. If the + ;; dimension of the charset is two, REG_1 should be ((CODE0 << + ;; 7) | CODE1), where CODE0 is the first code point and CODE1 + ;; is the second code point of the character. + | (write-multibyte-character REG_0 REG_1) + +;; Call CCL program whose name is ccl-program-name. +CALL:= (call ccl-program-name) + +TRANSLATE:= ;; Not implemented under XEmacs, except mule-to-unicode and + ;; unicode-to-mule. + (translate-character REG(table) REG(charset) REG(codepoint)) + | (translate-character SYMBOL REG(charset) REG(codepoint)) + | (mule-to-unicode REG(charset) REG(codepoint)) + | (unicode-to-mule REG(unicode,code) REG(CHARSET)) + +LOOKUP:= + (lookup-character SYMBOL REG(charset) REG(codepoint)) + | (lookup-integer SYMBOL REG(integer)) + ;; SYMBOL refers to a table defined by `define-hash-translation-table'. + +MAP:= + (iterate-multiple-map REG REG MAP-IDs) + | (map-multiple REG REG (MAP-SET)) + | (map-single REG REG MAP-ID) +MAP-IDs:= MAP-ID ... +MAP-SET:= MAP-IDs | (MAP-IDs) MAP-SET +MAP-ID:= INT-OR-CHAR + +;; Terminate the CCL program. +END:= (end) + +;; CCL registers. These can contain any integer value. As r7 is used by the +;; CCL interpreter itself, its value can change unexpectedly. +REG:= r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 + +ARG:= REG | INT-OR-CHAR + +OPERATOR:= + ;; Normal arithmetical operators (same meaning as C code). + + | - | * | / | % + + ;; Bitwise operators (same meaning as C code) + | & | `|' | ^ + + ;; Shifting operators (same meaning as C code) + | << | >> + + ;; (REG = ARG_0 <8 ARG_1) means: + ;; (REG = ((ARG_0 << 8) | ARG_1)) + | <8 + + ;; (REG = ARG_0 >8 ARG_1) means: + ;; ((REG = (ARG_0 >> 8)) + ;; (r7 = (ARG_0 & 255))) + | >8 + + ;; (REG = ARG_0 // ARG_1) means: + ;; ((REG = (ARG_0 / ARG_1)) + ;; (r7 = (ARG_0 % ARG_1))) + | // + + ;; Normal comparing operators (same meaning as C code) + | < | > | == | <= | >= | != + + ;; If ARG_0 and ARG_1 are higher and lower byte of Shift-JIS + ;; code, and CHAR is the corresponding JISX0208 character, + ;; (REG = ARG_0 de-sjis ARG_1) means: + ;; ((REG = CODE0) + ;; (r7 = CODE1)) + ;; where CODE0 is the first code point of CHAR, CODE1 is the + ;; second code point of CHAR. + | de-sjis + + ;; If ARG_0 and ARG_1 are the first and second code point of + ;; JISX0208 character CHAR, and SJIS is the correponding + ;; Shift-JIS code, + ;; (REG = ARG_0 en-sjis ARG_1) means: + ;; ((REG = HIGH) + ;; (r7 = LOW)) + ;; where HIGH is the higher byte of SJIS, LOW is the lower + ;; byte of SJIS. + | en-sjis + +ASSIGNMENT_OPERATOR:= + ;; Same meaning as C code + += | -= | *= | /= | %= | &= | `|=' | ^= | <<= | >>= + + ;; (REG <8= ARG) is the same as: + ;; ((REG <<= 8) + ;; (REG |= ARG)) + | <8= + + ;; (REG >8= ARG) is the same as: + ;; ((r7 = (REG & 255)) + ;; (REG >>= 8)) + + ;; (REG //= ARG) is the same as: + ;; ((r7 = (REG % ARG)) + ;; (REG /= ARG)) + | //= + +ARRAY:= `[' INT-OR-CHAR ... `]' + +INT-OR-CHAR:= integer | character +" + `(let ((prog ,(ccl-compile (eval ccl-program)))) + (defconst ,name prog ,doc) + (put ',name 'ccl-program-idx (register-ccl-program ',name prog)) + nil)) + +;;;###autoload +(defmacro check-ccl-program (ccl-program &optional name) + "Check validity of CCL-PROGRAM. +If CCL-PROGRAM is a symbol denoting a CCL program, return +CCL-PROGRAM, else return nil. +If CCL-PROGRAM is a vector and optional arg NAME (symbol) is supplied, +register CCL-PROGRAM by name NAME, and return NAME." + `(if (ccl-program-p ,ccl-program) + (if (vectorp ,ccl-program) + (progn + (register-ccl-program ,name ,ccl-program) + ,name) + ,ccl-program))) + +(provide 'ccl) + +;; ccl.el ends here \ No newline at end of file Index: lisp/mule/mule-coding.el =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/lisp/mule/mule-coding.el,v retrieving revision 1.20 diff -u -u -r1.20 mule-coding.el --- lisp/mule/mule-coding.el 2007/07/22 22:03:50 1.20 +++ lisp/mule/mule-coding.el 2007/07/27 18:55:08 ＠＠ -29,7 +29,7 ＠＠ ;;; split off of mule.el and mostly moved to coding.el ;; Needed for make-8-bit-coding-system. -(eval-when-compile (require 'ccl "mule-ccl")) +(eval-when-compile (require 'ccl)) ;;; Code: Index: lisp/mule/chinese.el =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/lisp/mule/chinese.el,v retrieving revision 1.14 diff -u -u -r1.14 chinese.el --- lisp/mule/chinese.el 2007/07/22 22:03:48 1.14 +++ lisp/mule/chinese.el 2007/07/27 18:55:08 ＠＠ -31,7 +31,7 ＠＠ ;;; Code: -(eval-when-compile (progn (require 'ccl "mule-ccl") (require 'china-util))) +(eval-when-compile (progn (require 'ccl) (require 'china-util))) ;; Syntax of Chinese characters. (loop for row in '(33 34 41) -- On the quay of the little Black Sea port, where the rescued pair came once more into contact with civilization, Dobrinton was bitten by a dog which was assumed to be mad, though it may only have been indiscriminating. (Saki) _______________________________________________ XEmacs-Patches mailing list XEmacs-Patches(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-patches