reactos/tools/wmc/mcy.y

   1 /*
   2  * Wine Message Compiler parser
   3  *
   4  * Copyright 2000 Bertho A. Stultiens (BS)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * NOTES:
  21  *
  22  * The basic grammar of the file is yet another example of, humpf,
  23  * design. There is is mix of context-insensitive and -sentitive
  24  * stuff, which makes it rather complicated.
  25  * The header definitions are all context-insensitive because they have
  26  * delimited arguments, whereas the message headers are (semi-) context-
  27  * sensitive and the messages themselves are, well, RFC82[12] delimited.
  28  * This mixture seems to originate from the time that ms and ibm were
  29  * good friends and developing os/2 according to the "compatibility"
  30  * switch and reading some comments here and there.
  31  *
  32  * I'll ignore most of the complications and concentrate on the concept
  33  * which allows me to use yacc. Basically, everything is context-
  34  * insensitive now, with the exception of the message-text itself and
  35  * the preceding language declaration.
  36  *
  37  */
  38
  39 %{
  40
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #include <assert.h>
  44
  45 #include "config.h"
  46
  47 #include "utils.h"
  48 #include "wmc.h"
  49 #include "lang.h"
  50
  51 static const char err_syntax[]  = "Syntax error";
  52 static const char err_number[]  = "Number expected";
  53 static const char err_ident[]   = "Identifier expected";
  54 static const char err_assign[]  = "'=' expected";
  55 static const char err_popen[]   = "'(' expected";
  56 static const char err_pclose[]  = "')' expected";
  57 static const char err_colon[]   = "':' expected";
  58 static const char err_msg[]     = "Message expected";
  59
  60 /* Scanner switches */
  61 int want_nl = 0;                /* Request next newlinw */
  62 int want_line = 0;              /* Request next complete line */
  63 int want_file = 0;              /* Request next ident as filename */
  64
  65 node_t *nodehead = NULL;        /* The list of all parsed elements */
  66 static node_t *nodetail = NULL;
  67 lan_blk_t *lanblockhead;        /* List of parsed elements transposed */
  68
  69 static int base = 16;           /* Current printout base to use (8, 10 or 16) */
  70 static WCHAR *cast = NULL;      /* Current typecast to use */
  71
  72 static int last_id = 0;         /* The last message ID parsed */
  73 static int last_sev = 0;        /* Last severity code parsed */
  74 static int last_fac = 0;        /* Last facility code parsed */
  75 static WCHAR *last_sym = NULL;/* Last alias symbol parsed */
  76 static int have_sev;            /* Set if severity parsed for current message */
  77 static int have_fac;            /* Set if facility parsed for current message */
  78 static int have_sym;            /* Set is symbol parsed for current message */
  79
  80 static cp_xlat_t *cpxlattab = NULL;     /* Codepage translation table */
  81 static int ncpxlattab = 0;
  82
  83 /* Prototypes */
  84 static WCHAR *merge(WCHAR *s1, WCHAR *s2);
  85 static lanmsg_t *new_lanmsg(lan_cp_t *lcp, WCHAR *msg);
  86 static msg_t *add_lanmsg(msg_t *msg, lanmsg_t *lanmsg);
  87 static msg_t *complete_msg(msg_t *msg, int id);
  88 static void add_node(node_e type, void *p);
  89 static void do_add_token(tok_e type, token_t *tok, const char *code);
  90 static void test_id(int id);
  91 static int check_languages(node_t *head);
  92 static lan_blk_t *block_messages(node_t *head);
  93 static void add_cpxlat(int lan, int cpin, int cpout);
  94 static cp_xlat_t *find_cpxlat(int lan);
  95
  96 %}
  97
  98
  99 %union {
 100         WCHAR           *str;
 101         unsigned        num;
 102         token_t         *tok;
 103         lanmsg_t        *lmp;
 104         msg_t           *msg;
 105         lan_cp_t        lcp;
 106 }
 107
 108
 109 %token tSEVNAMES tFACNAMES tLANNAMES tBASE tCODEPAGE
 110 %token tTYPEDEF tNL tSYMNAME tMSGEND
 111 %token tSEVERITY tFACILITY tLANGUAGE tMSGID
 112 %token <str> tIDENT tLINE tFILE tCOMMENT
 113 %token <num> tNUMBER
 114 %token <tok> tTOKEN
 115
 116 %type <str>     alias lines
 117 %type <num>     optcp id msgid clan
 118 %type <tok>     token
 119 %type <lmp>     body
 120 %type <msg>     bodies msg
 121 %type <lcp>     lang
 122
 123 %%
 124 file    : items {
 125                 if(!check_languages(nodehead))
 126                         xyyerror("No messages defined");
 127                 lanblockhead = block_messages(nodehead);
 128         }
 129         ;
 130
 131 items   : decl
 132         | items decl
 133         ;
 134
 135 decl    : global
 136         | msg           { add_node(nd_msg, $1); }
 137         | tCOMMENT      { add_node(nd_comment, $1); }
 138         | error         { xyyerror(err_syntax); /* `Catch all' error */ }
 139         ;
 140
 141 global  : tSEVNAMES '=' '(' smaps ')'
 142         | tSEVNAMES '=' '(' smaps error { xyyerror(err_pclose); }
 143         | tSEVNAMES '=' error           { xyyerror(err_popen); }
 144         | tSEVNAMES error               { xyyerror(err_assign); }
 145         | tFACNAMES '=' '(' fmaps ')'
 146         | tFACNAMES '=' '(' fmaps error { xyyerror(err_pclose); }
 147         | tFACNAMES '=' error           { xyyerror(err_popen); }
 148         | tFACNAMES error               { xyyerror(err_assign); }
 149         | tLANNAMES '=' '(' lmaps ')'
 150         | tLANNAMES '=' '(' lmaps error { xyyerror(err_pclose); }
 151         | tLANNAMES '=' error           { xyyerror(err_popen); }
 152         | tLANNAMES error               { xyyerror(err_assign); }
 153         | tCODEPAGE '=' '(' cmaps ')'
 154         | tCODEPAGE '=' '(' cmaps error { xyyerror(err_pclose); }
 155         | tCODEPAGE '=' error           { xyyerror(err_popen); }
 156         | tCODEPAGE error               { xyyerror(err_assign); }
 157         | tTYPEDEF '=' tIDENT           { cast = $3; }
 158         | tTYPEDEF '=' error            { xyyerror(err_number); }
 159         | tTYPEDEF error                { xyyerror(err_assign); }
 160         | tBASE '=' tNUMBER             {
 161                 switch(base)
 162                 {
 163                 case 8:
 164                 case 10:
 165                 case 16:
 166                         base = $3;
 167                         break;
 168                 default:
 169                         xyyerror("Numberbase must be 8, 10 or 16");
 170                 }
 171         }
 172         | tBASE '=' error               { xyyerror(err_number); }
 173         | tBASE error                   { xyyerror(err_assign); }
 174         ;
 175
 176 /*----------------------------------------------------------------------
 177  * SeverityNames mapping
 178  */
 179 smaps   : smap
 180         | smaps smap
 181         | error         { xyyerror(err_ident); }
 182         ;
 183
 184 smap    : token '=' tNUMBER alias {
 185                 $1->token = $3;
 186                 $1->alias = $4;
 187                 if($3 & (~0x3))
 188                         xyyerror("Severity value out of range (0x%08x > 0x3)", $3);
 189                 do_add_token(tok_severity, $1, "severity");
 190         }
 191         | token '=' error       { xyyerror(err_number); }
 192         | token error           { xyyerror(err_assign); }
 193         ;
 194
 195 /*----------------------------------------------------------------------
 196  * FacilityNames mapping
 197  */
 198 fmaps   : fmap
 199         | fmaps fmap
 200         | error         { xyyerror(err_ident); }
 201         ;
 202
 203 fmap    : token '=' tNUMBER alias {
 204                 $1->token = $3;
 205                 $1->alias = $4;
 206                 if($3 & (~0xfff))
 207                         xyyerror("Facility value out of range (0x%08x > 0xfff)", $3);
 208                 do_add_token(tok_facility, $1, "facility");
 209         }
 210         | token '=' error       { xyyerror(err_number); }
 211         | token error           { xyyerror(err_assign); }
 212         ;
 213
 214 alias   : /* Empty */   { $$ = NULL; }
 215         | ':' tIDENT    { $$ = $2; }
 216         | ':' error     { xyyerror(err_ident); }
 217         ;
 218
 219 /*----------------------------------------------------------------------
 220  * LanguageNames mapping
 221  */
 222 lmaps   : lmap
 223         | lmaps lmap
 224         | error         { xyyerror(err_ident); }
 225         ;
 226
 227 lmap    : token '=' tNUMBER setfile ':' tFILE optcp {
 228                 $1->token = $3;
 229                 $1->alias = $6;
 230                 $1->codepage = $7;
 231                 do_add_token(tok_language, $1, "language");
 232                 if(!find_language($1->token) && !find_cpxlat($1->token))
 233                         yywarning("Language 0x%x not built-in, using codepage %d; use explicit codepage to override", $1->token, WMC_DEFAULT_CODEPAGE);
 234         }
 235         | token '=' tNUMBER setfile ':' error   { xyyerror("Filename expected"); }
 236         | token '=' tNUMBER error               { xyyerror(err_colon); }
 237         | token '=' error                       { xyyerror(err_number); }
 238         | token error                           { xyyerror(err_assign); }
 239         ;
 240
 241 optcp   : /* Empty */   { $$ = 0; }
 242         | ':' tNUMBER   { $$ = $2; }
 243         | ':' error     { xyyerror("Codepage-number expected"); }
 244         ;
 245
 246 /*----------------------------------------------------------------------
 247  * Codepages mapping
 248  */
 249 cmaps   : cmap
 250         | cmaps cmap
 251         | error         { xyyerror(err_ident); }
 252         ;
 253
 254 cmap    : clan '=' tNUMBER ':' tNUMBER {
 255                 static const char err_nocp[] = "Codepage %d not builtin; cannot convert";
 256                 if(find_cpxlat($1))
 257                         xyyerror("Codepage translation already defined for language 0x%x", $1);
 258                 if($3 && !find_codepage($3))
 259                         xyyerror(err_nocp, $3);
 260                 if($5 && !find_codepage($5))
 261                         xyyerror(err_nocp, $5);
 262                 add_cpxlat($1, $3, $5);
 263         }
 264         | clan '=' tNUMBER ':' error    { xyyerror(err_number); }
 265         | clan '=' tNUMBER error        { xyyerror(err_colon); }
 266         | clan '=' error                { xyyerror(err_number); }
 267         | clan error                    { xyyerror(err_assign); }
 268         ;
 269
 270 clan    : tNUMBER       { $$ = $1; }
 271         | tTOKEN        {
 272                 if($1->type != tok_language)
 273                         xyyerror("Language name or code expected");
 274                 $$ = $1->token;
 275         }
 276         ;
 277
 278 /*----------------------------------------------------------------------
 279  * Message-definition parsing
 280  */
 281 msg     : msgid sevfacsym { test_id($1); } bodies       { $$ = complete_msg($4, $1); }
 282         ;
 283
 284 msgid   : tMSGID '=' id {
 285                 if($3 & (~0xffff))
 286                         xyyerror("Message ID value out of range (0x%08x > 0xffff)", $3);
 287                 $$ = $3;
 288         }
 289         | tMSGID error  { xyyerror(err_assign); }
 290         ;
 291
 292 id      : /* Empty */   { $$ = ++last_id; }
 293         | tNUMBER       { $$ = last_id = $1; }
 294         | '+' tNUMBER   { $$ = last_id += $2; }
 295         | '+' error     { xyyerror(err_number); }
 296         ;
 297
 298 sevfacsym: /* Empty */  { have_sev = have_fac = have_sym = 0; }
 299         | sevfacsym sev { if(have_sev) xyyerror("Severity already defined"); have_sev = 1; }
 300         | sevfacsym fac { if(have_fac) xyyerror("Facility already defined"); have_fac = 1; }
 301         | sevfacsym sym { if(have_sym) xyyerror("Symbolname already defined"); have_sym = 1; }
 302         ;
 303
 304 sym     : tSYMNAME '=' tIDENT   { last_sym = $3; }
 305         | tSYMNAME '=' error    { xyyerror(err_ident); }
 306         | tSYMNAME error        { xyyerror(err_assign); }
 307         ;
 308
 309 sev     : tSEVERITY '=' token   {
 310                 token_t *tok = lookup_token($3->name);
 311                 if(!tok)
 312                         xyyerror("Undefined severityname");
 313                 if(tok->type != tok_severity)
 314                         xyyerror("Identifier is not of class 'severity'");
 315                 last_sev = tok->token;
 316         }
 317         | tSEVERITY '=' error   { xyyerror(err_ident); }
 318         | tSEVERITY error       { xyyerror(err_assign); }
 319         ;
 320
 321 fac     : tFACILITY '=' token   {
 322                 token_t *tok = lookup_token($3->name);
 323                 if(!tok)
 324                         xyyerror("Undefined facilityname");
 325                 if(tok->type != tok_facility)
 326                         xyyerror("Identifier is not of class 'facility'");
 327                 last_fac = tok->token;
 328         }
 329         | tFACILITY '=' error   { xyyerror(err_ident); }
 330         | tFACILITY error       { xyyerror(err_assign); }
 331         ;
 332
 333 /*----------------------------------------------------------------------
 334  * Message-text parsing
 335  */
 336 bodies  : body          { $$ = add_lanmsg(NULL, $1); }
 337         | bodies body   { $$ = add_lanmsg($1, $2); }
 338         | error         { xyyerror("'Language=...' (start of message text-definition) expected"); }
 339         ;
 340
 341 body    : lang setline lines tMSGEND    { $$ = new_lanmsg(&$1, $3); }
 342         ;
 343
 344         /*
 345          * The newline is to be able to set the codepage
 346          * to the language based codepage for the next
 347          * message to be parsed.
 348          */
 349 lang    : tLANGUAGE setnl '=' token tNL {
 350                 token_t *tok = lookup_token($4->name);
 351                 cp_xlat_t *cpx;
 352                 if(!tok)
 353                         xyyerror("Undefined language");
 354                 if(tok->type != tok_language)
 355                         xyyerror("Identifier is not of class 'language'");
 356                 if((cpx = find_cpxlat(tok->token)))
 357                 {
 358                         set_codepage($$.codepage = cpx->cpin);
 359                 }
 360                 else if(!tok->codepage)
 361                 {
 362                         const language_t *lan = find_language(tok->token);
 363                         if(!lan)
 364                         {
 365                                 /* Just set default; warning was given while parsing languagenames */
 366                                 set_codepage($$.codepage = WMC_DEFAULT_CODEPAGE);
 367                         }
 368                         else
 369                         {
 370                                 /* The default seems to be to use the DOS codepage... */
 371                                 set_codepage($$.codepage = lan->doscp);
 372                         }
 373                 }
 374                 else
 375                         set_codepage($$.codepage = tok->codepage);
 376                 $$.language = tok->token;
 377         }
 378         | tLANGUAGE setnl '=' token error       { xyyerror("Missing newline"); }
 379         | tLANGUAGE setnl '=' error             { xyyerror(err_ident); }
 380         | tLANGUAGE error                       { xyyerror(err_assign); }
 381         ;
 382
 383 lines   : tLINE         { $$ = $1; }
 384         | lines tLINE   { $$ = merge($1, $2); }
 385         | error         { xyyerror(err_msg); }
 386         | lines error   { xyyerror(err_msg); }
 387         ;
 388
 389 /*----------------------------------------------------------------------
 390  * Helper rules
 391  */
 392 token   : tIDENT        { $$ = xmalloc(sizeof(token_t)); $$->name = $1; }
 393         | tTOKEN        { $$ = $1; }
 394         ;
 395
 396 setnl   : /* Empty */   { want_nl = 1; }
 397         ;
 398
 399 setline : /* Empty */   { want_line = 1; }
 400         ;
 401
 402 setfile : /* Empty */   { want_file = 1; }
 403         ;
 404
 405 %%
 406
 407 static WCHAR *merge(WCHAR *s1, WCHAR *s2)
 408 {
 409         int l1 = unistrlen(s1);
 410         int l2 = unistrlen(s2);
 411         s1 = xrealloc(s1, (l1 + l2 + 1) * sizeof(*s1));
 412         unistrcpy(s1+l1, s2);
 413         free(s2);
 414         return s1;
 415 }
 416
 417 static void do_add_token(tok_e type, token_t *tok, const char *code)
 418 {
 419         token_t *tp = lookup_token(tok->name);
 420         if(tp)
 421         {
 422                 if(tok->type != type)
 423                         yywarning("Type change in token");
 424                 if(tp != tok)
 425                         xyyerror("Overlapping token not the same");
 426                 /* else its already defined and changed */
 427                 if(tok->fixed)
 428                         xyyerror("Redefinition of %s", code);
 429                 tok->fixed = 1;
 430         }
 431         else
 432         {
 433                 add_token(type, tok->name, tok->token, tok->codepage, tok->alias, 1);
 434                 free(tok);
 435         }
 436 }
 437
 438 static lanmsg_t *new_lanmsg(lan_cp_t *lcp, WCHAR *msg)
 439 {
 440         lanmsg_t *lmp = (lanmsg_t *)xmalloc(sizeof(lanmsg_t));
 441         lmp->lan = lcp->language;
 442         lmp->cp  = lcp->codepage;
 443         lmp->msg = msg;
 444         lmp->len = unistrlen(msg) + 1;  /* Include termination */
 445         if(lmp->len > 4096)
 446                 yywarning("Message exceptionally long; might be a missing termination");
 447         return lmp;
 448 }
 449
 450 static msg_t *add_lanmsg(msg_t *msg, lanmsg_t *lanmsg)
 451 {
 452         int i;
 453         if(!msg)
 454                 msg = xmalloc(sizeof(msg_t));
 455         msg->msgs = xrealloc(msg->msgs, (msg->nmsgs+1) * sizeof(*(msg->msgs)));
 456         msg->msgs[msg->nmsgs] = lanmsg;
 457         msg->nmsgs++;
 458         for(i = 0; i < msg->nmsgs-1; i++)
 459         {
 460                 if(msg->msgs[i]->lan == lanmsg->lan)
 461                         xyyerror("Message for language 0x%x already defined", lanmsg->lan);
 462         }
 463         return msg;
 464 }
 465
 466 static int sort_lanmsg(const void *p1, const void *p2)
 467 {
 468         return (*(lanmsg_t **)p1)->lan - (*(lanmsg_t **)p2)->lan;
 469 }
 470
 471 static msg_t *complete_msg(msg_t *mp, int id)
 472 {
 473         assert(mp != NULL);
 474         mp->id = id;
 475         if(have_sym)
 476                 mp->sym = last_sym;
 477         else
 478                 xyyerror("No symbolic name defined for message id %d", id);
 479         mp->sev = last_sev;
 480         mp->fac = last_fac;
 481         qsort(mp->msgs, mp->nmsgs, sizeof(*(mp->msgs)), sort_lanmsg);
 482         mp->realid = id | (last_sev << 30) | (last_fac << 16);
 483         if(custombit)
 484                 mp->realid |= 1 << 29;
 485         mp->base = base;
 486         mp->cast = cast;
 487         return mp;
 488 }
 489
 490 static void add_node(node_e type, void *p)
 491 {
 492         node_t *ndp = (node_t *)xmalloc(sizeof(node_t));
 493         ndp->type = type;
 494         ndp->u.all = p;
 495
 496         if(nodetail)
 497         {
 498                 ndp->prev = nodetail;
 499                 nodetail->next = ndp;
 500                 nodetail = ndp;
 501         }
 502         else
 503         {
 504                 nodehead = nodetail = ndp;
 505         }
 506 }
 507
 508 static void test_id(int id)
 509 {
 510         node_t *ndp;
 511         for(ndp = nodehead; ndp; ndp = ndp->next)
 512         {
 513                 if(ndp->type != nd_msg)
 514                         continue;
 515                 if(ndp->u.msg->id == id && ndp->u.msg->sev == last_sev && ndp->u.msg->fac == last_fac)
 516                         xyyerror("MessageId %d with facility 0x%x and severity 0x%x already defined", id, last_fac, last_sev);
 517         }
 518 }
 519
 520 static int check_languages(node_t *head)
 521 {
 522         static char err_missing[] = "Missing definition for language 0x%x; MessageID %d, facility 0x%x, severity 0x%x";
 523         node_t *ndp;
 524         int nm = 0;
 525         msg_t *msg = NULL;
 526
 527         for(ndp = head; ndp; ndp = ndp->next)
 528         {
 529                 if(ndp->type != nd_msg)
 530                         continue;
 531                 if(!nm)
 532                 {
 533                         msg = ndp->u.msg;
 534                 }
 535                 else
 536                 {
 537                         int i;
 538                         msg_t *m1;
 539                         msg_t *m2;
 540                         if(ndp->u.msg->nmsgs > msg->nmsgs)
 541                         {
 542                                 m1 = ndp->u.msg;
 543                                 m2 = msg;
 544                         }
 545                         else
 546                         {
 547                                 m1 = msg;
 548                                 m2 = ndp->u.msg;
 549                         }
 550
 551                         for(i = 0; i < m1->nmsgs; i++)
 552                         {
 553                                 if(i > m2->nmsgs)
 554                                         error(err_missing, m1->msgs[i]->lan, m2->id, m2->fac, m2->sev);
 555                                 else if(m1->msgs[i]->lan < m2->msgs[i]->lan)
 556                                         error(err_missing, m1->msgs[i]->lan, m2->id, m2->fac, m2->sev);
 557                                 else if(m1->msgs[i]->lan > m2->msgs[i]->lan)
 558                                         error(err_missing, m2->msgs[i]->lan, m1->id, m1->fac, m1->sev);
 559                         }
 560                 }
 561                 nm++;
 562         }
 563         return nm;
 564 }
 565
 566 #define MSGRID(x)       ((*(msg_t **)(x))->realid)
 567 static int sort_msg(const void *p1, const void *p2)
 568 {
 569         return MSGRID(p1) > MSGRID(p2) ? 1 : (MSGRID(p1) == MSGRID(p2) ? 0 : -1);
 570         /* return (*(msg_t **)p1)->realid - (*(msg_t **)p1)->realid; */
 571 }
 572
 573 /*
 574  * block_messages() basically transposes the messages
 575  * from ID/language based list to a language/ID
 576  * based list.
 577  */
 578 static lan_blk_t *block_messages(node_t *head)
 579 {
 580         lan_blk_t *lbp;
 581         lan_blk_t *lblktail = NULL;
 582         lan_blk_t *lblkhead = NULL;
 583         msg_t **msgtab = NULL;
 584         node_t *ndp;
 585         int nmsg = 0;
 586         int i;
 587         int nl;
 588         int factor = unicodeout ? 2 : 1;
 589
 590         for(ndp = head; ndp; ndp = ndp->next)
 591         {
 592                 if(ndp->type != nd_msg)
 593                         continue;
 594                 msgtab = xrealloc(msgtab, (nmsg+1) * sizeof(*msgtab));
 595                 msgtab[nmsg++] = ndp->u.msg;
 596         }
 597
 598         assert(nmsg != 0);
 599         qsort(msgtab, nmsg, sizeof(*msgtab), sort_msg);
 600
 601         for(nl = 0; nl < msgtab[0]->nmsgs; nl++)        /* This should be equal for all after check_languages() */
 602         {
 603                 lbp = xmalloc(sizeof(lan_blk_t));
 604
 605                 if(!lblktail)
 606                 {
 607                         lblkhead = lblktail = lbp;
 608                 }
 609                 else
 610                 {
 611                         lblktail->next = lbp;
 612                         lbp->prev = lblktail;
 613                         lblktail = lbp;
 614                 }
 615                 lbp->nblk = 1;
 616                 lbp->blks = xmalloc(sizeof(*lbp->blks));
 617                 lbp->blks[0].idlo = msgtab[0]->realid;
 618                 lbp->blks[0].idhi = msgtab[0]->realid;
 619                 /* The plus 4 is the entry header; (+3)&~3 is DWORD alignment */
 620                 lbp->blks[0].size = ((factor * msgtab[0]->msgs[nl]->len + 3) & ~3) + 4;
 621                 lbp->blks[0].msgs = xmalloc(sizeof(*lbp->blks[0].msgs));
 622                 lbp->blks[0].nmsg = 1;
 623                 lbp->blks[0].msgs[0] = msgtab[0]->msgs[nl];
 624                 lbp->lan = msgtab[0]->msgs[nl]->lan;
 625
 626                 for(i = 1; i < nmsg; i++)
 627                 {
 628                         block_t *blk = &(lbp->blks[lbp->nblk-1]);
 629                         if(msgtab[i]->realid == blk->idhi+1)
 630                         {
 631                                 blk->size += ((factor * msgtab[i]->msgs[nl]->len + 3) & ~3) + 4;
 632                                 blk->idhi++;
 633                                 blk->msgs = xrealloc(blk->msgs, (blk->nmsg+1) * sizeof(*blk->msgs));
 634                                 blk->msgs[blk->nmsg++] = msgtab[i]->msgs[nl];
 635                         }
 636                         else
 637                         {
 638                                 lbp->nblk++;
 639                                 lbp->blks = xrealloc(lbp->blks, lbp->nblk * sizeof(*lbp->blks));
 640                                 blk = &(lbp->blks[lbp->nblk-1]);
 641                                 blk->idlo = msgtab[i]->realid;
 642                                 blk->idhi = msgtab[i]->realid;
 643                                 blk->size = ((factor * msgtab[i]->msgs[nl]->len + 3) & ~3) + 4;
 644                                 blk->msgs = xmalloc(sizeof(*blk->msgs));
 645                                 blk->nmsg = 1;
 646                                 blk->msgs[0] = msgtab[i]->msgs[nl];
 647                         }
 648                 }
 649         }
 650         free(msgtab);
 651         return lblkhead;
 652 }
 653
 654 static int sc_xlat(const void *p1, const void *p2)
 655 {
 656         return ((cp_xlat_t *)p1)->lan - ((cp_xlat_t *)p2)->lan;
 657 }
 658
 659 static void add_cpxlat(int lan, int cpin, int cpout)
 660 {
 661         cpxlattab = xrealloc(cpxlattab, (ncpxlattab+1) * sizeof(*cpxlattab));
 662         cpxlattab[ncpxlattab].lan   = lan;
 663         cpxlattab[ncpxlattab].cpin  = cpin;
 664         cpxlattab[ncpxlattab].cpout = cpout;
 665         ncpxlattab++;
 666         qsort(cpxlattab, ncpxlattab, sizeof(*cpxlattab), sc_xlat);
 667 }
 668
 669 static cp_xlat_t *find_cpxlat(int lan)
 670 {
 671         cp_xlat_t t;
 672
 673         if(!cpxlattab) return NULL;
 674
 675         t.lan = lan;
 676         return (cp_xlat_t *)bsearch(&t, cpxlattab, ncpxlattab, sizeof(*cpxlattab), sc_xlat);
 677 }
 678