160 lines
3.7 KiB
C
160 lines
3.7 KiB
C
/*
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* Copyright (c) 1991-1994 Sony Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL SONY CORPORATION BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of Sony Corporation
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* shall not be used in advertising or otherwise to promote the sale, use
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* or other dealings in this Software without prior written authorization
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* from Sony Corporation.
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*
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*/
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#include "sj_kcnv.h"
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#include "sj_right.h"
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#include "sj_kanakan.h"
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static int
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set2nd(SJ4_CONTEXT CLREC* clrec) {
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CLREC* rec2;
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mkjiritu(SJ4_CONTEXT_PASS DO_IKKATU | DO_CLSTUDY);
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mkbunsetu(SJ4_CONTEXT_PASS2);
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if(!maxclptr) {
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wakachi(SJ4_CONTEXT_PASS2);
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return clrec->cllen;
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}
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for(rec2 = maxclptr; rec2; rec2 = rec2->clsort) {
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if(terminate(SJ4_CONTEXT_PASS rec2->right, cnvstart + rec2->cllen) != SHU)
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break;
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}
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return rec2 ? (clrec->cllen + rec2->cllen) : (clrec->cllen);
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}
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static int cost_penalty(CLREC* clrec) {
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int c = clrec->jnode->cost;
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if(c < 0xfff / 5 * 1) return 0;
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if(c < 0xfff / 5 * 2) return 1;
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if(c < 0xfff / 5 * 3) return 2;
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if(c < 0xfff / 5 * 4) return 4;
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return 8;
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}
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void mk2claus(SJ4_CONTEXT2) {
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u_char* keepptr;
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int keeplen;
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CLREC* clrec;
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int len;
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int save2ln;
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int prty;
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int maxprty;
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int count;
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int prty2;
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prty = maxprty = prty2 = 0;
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clt2nd = maxclptr = NULL;
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jrt2nd = maxjptr = NULL;
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selcl = clt1st;
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if(selcl->right == R_FZKKGU) {
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pritiny(SJ4_CONTEXT_PASS2);
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return;
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}
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if(cnvlen == selcl->cllen) {
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pritiny(SJ4_CONTEXT_PASS2);
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return;
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}
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keepptr = cnvstart;
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keeplen = cnvlen;
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len = count = 0;
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for(clrec = selcl; clrec && count < 5; clrec = clrec->clsort) {
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cnvstart = keepptr + clrec->cllen;
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cnvlen = keeplen - clrec->cllen;
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if(len != clrec->cllen) {
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if(clt2nd != maxclptr) {
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free_clall(SJ4_CONTEXT_PASS maxclptr);
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free_jall(SJ4_CONTEXT_PASS maxjptr);
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}
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save2ln = set2nd(SJ4_CONTEXT_PASS clrec);
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count++;
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len = clrec->cllen;
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prty2 = 0;
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}
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if(Termtbl[clrec->right] & T_SHUUJO)
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clrec->cl2len = (u_char)len;
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else
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clrec->cl2len = (u_char)save2ln;
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if(selcl->cl2len > clrec->cl2len) continue;
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prty = priority(SJ4_CONTEXT_PASS clrec) - prty2 - cost_penalty(clrec);
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prty2++;
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if(selcl->cl2len == clrec->cl2len) {
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if(clrec->cllen == nextcllen) {
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if(selcl->cllen != nextcllen)
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;
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else if(prty <= maxprty)
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continue;
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}
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else if(prty <= maxprty)
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continue;
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}
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selcl = clrec;
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maxprty = prty;
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if(clt2nd == maxclptr) continue;
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free_clall(SJ4_CONTEXT_PASS clt2nd);
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free_jall(SJ4_CONTEXT_PASS jrt2nd);
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jrt2nd = maxjptr;
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clt2nd = maxclptr;
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}
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if(clt2nd != maxclptr) {
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free_clall(SJ4_CONTEXT_PASS maxclptr);
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maxclptr = NULL;
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free_jall(SJ4_CONTEXT_PASS maxjptr);
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maxjptr = NULL;
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}
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cnvstart = keepptr;
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cnvlen = keeplen;
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}
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