git.marmaro.de Git - mmh/blob - sbr/fmt_scan.c

   1 /*
   2 ** fmt_scan.c -- format string interpretation
   3 **
   4 ** This code is Copyright (c) 2002, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <h/addrsbr.h>
  11 #include <h/fmt_scan.h>
  12 #include <h/tws.h>
  13 #include <h/fmt_compile.h>
  14
  15 #ifdef TIME_WITH_SYS_TIME
  16 # include <sys/time.h>
  17 # include <time.h>
  18 #else
  19 # ifdef TM_IN_SYS_TIME
  20 #  include <sys/time.h>
  21 # else
  22 #  include <time.h>
  23 # endif
  24 #endif
  25 #ifdef MULTIBYTE_SUPPORT
  26 #  include <wctype.h>
  27 #  include <wchar.h>
  28 #endif
  29
  30 #define NFMTS MAXARGS
  31
  32 extern char *formataddr();  /* hook for custom address formatting */
  33
  34 extern int fmt_norm;  /* defined in sbr/fmt_def.c = AD_NAME */
  35 struct mailname fmt_mnull;
  36
  37 /*
  38 ** static prototypes
  39 */
  40 static int match(char *, char *);
  41 static char *get_x400_friendly(char *, char *, int);
  42 static int get_x400_comp(char *, char *, char *, int);
  43
  44
  45 /*
  46 ** test if string "sub" appears anywhere in
  47 ** string "str" (case insensitive).
  48 */
  49
  50 static int
  51 match(char *str, char *sub)
  52 {
  53         int c1, c2;
  54         char *s1, *s2;
  55
  56         while ((c1 = *sub)) {
  57                 while ((c2 = *str++) && tolower(c1) != tolower(c2))
  58                         ;
  59                 if (! c2)
  60                         return 0;
  61                 s1 = sub + 1; s2 = str;
  62                 while ((c1 = *s1++) && tolower(c1) == tolower(*s2++))
  63                         ;
  64                 if (! c1)
  65                         return 1;
  66         }
  67         return 1;
  68 }
  69
  70 /*
  71 ** copy a number to the destination subject to a maximum width
  72 */
  73 static void
  74 cpnumber(char **dest, int num, unsigned int wid, char fill, size_t n) {
  75         int i, c;
  76         char *sp;
  77         char *cp = *dest;
  78         char *ep = cp + n;
  79
  80         if (cp + wid < ep) {
  81                 if ((i = (num)) < 0)
  82                         i = -(num);
  83                 if ((c = (wid)) < 0)
  84                         c = -c;
  85                 sp = cp + c;
  86                 do {
  87                         *--sp = (i % 10) + '0';
  88                         i /= 10;
  89                 } while (i > 0 && sp > cp);
  90                 if (i > 0)
  91                         *sp = '?';
  92                 else if ((num) < 0 && sp > cp)
  93                         *--sp = '-';
  94                 while (sp > cp)
  95                         *--sp = fill;
  96                 cp += c;
  97         }
  98         *dest = cp;
  99 }
 100
 101 /*
 102 ** copy string from str to dest padding with the fill character to a size
 103 ** of wid characters. if wid is negative, the string is right aligned
 104 ** no more than n bytes are copied
 105 */
 106 static void
 107 cptrimmed(char **dest, char *str, unsigned int wid, char fill, size_t n) {
 108         int remaining; /* remaining output width available */
 109         int c, ljust, w;
 110         int end;  /* number of input bytes remaining in str */
 111 #ifdef MULTIBYTE_SUPPORT
 112         int char_len;  /* bytes in current character */
 113         wchar_t wide_char;
 114 #endif
 115         char *sp;  /* current position in source string */
 116         char *cp = *dest;  /* current position in destination string */
 117         char *ep = cp + n; /* end of destination buffer */
 118         int prevCtrl = 1;
 119
 120         /* get alignment */
 121         ljust = 0;
 122         if ((remaining = (wid)) < 0) {
 123                 remaining = -remaining;
 124                 ljust++;
 125         }
 126         if ((sp = (str))) {
 127                 mbtowc(NULL, NULL, 0); /* reset shift state */
 128                 end = strlen(str);
 129                 while (*sp && remaining > 0 && end > 0) {
 130 #ifdef MULTIBYTE_SUPPORT
 131                         char_len = mbtowc(&wide_char, sp, end);
 132                         if (char_len <= 0 || (cp + char_len > ep))
 133                                 break;
 134
 135                         end -= char_len;
 136
 137                         if (iswcntrl(wide_char) || iswspace(wide_char)) {
 138                                 sp += char_len;
 139 #else
 140                         end--;
 141                         if (iscntrl(*sp) || isspace(*sp)) {
 142                                 sp++;
 143 #endif
 144                                 if (!prevCtrl) {
 145                                         *cp++ = ' ';
 146                                         remaining--;
 147                                 }
 148
 149                                 prevCtrl = 1;
 150                                 continue;
 151                         }
 152                         prevCtrl = 0;
 153
 154 #ifdef MULTIBYTE_SUPPORT
 155                         w = wcwidth(wide_char);
 156                         if (w >= 0 && remaining >= w) {
 157                                 strncpy(cp, sp, char_len);
 158                                 cp += char_len;
 159                                 remaining -= w;
 160                         }
 161                         sp += char_len;
 162 #else
 163                         *cp++ = *sp++;
 164                         remaining--;
 165 #endif
 166                 }
 167         }
 168
 169         if (ljust) {
 170                 if (cp + remaining > ep)
 171                         remaining = ep - cp;
 172                 ep = cp + remaining;
 173                 if (remaining > 0) {
 174                         /* copy string to the right */
 175                         while (--cp >= *dest)
 176                                 *(cp + remaining) = *cp;
 177                         /* add padding at the beginning */
 178                         cp += remaining;
 179                         for (c=remaining; c>0; c--)
 180                                 *cp-- = fill;
 181                 }
 182                 *dest = ep;
 183         } else {
 184                 /* pad remaining space */
 185                 while (remaining-- > 0 && cp < ep)
 186                         *cp++ = fill;
 187                 *dest = cp;
 188         }
 189 }
 190
 191 static void
 192 cpstripped(char **start, char *end, char *str)
 193 {
 194         int c;
 195         char *s = str;
 196
 197         if (!s)
 198                 return;
 199
 200         /* skip any initial control characters or spaces */
 201         while ((c = (unsigned char) *s) && (iscntrl(c) || isspace(c)))
 202                 s++;
 203
 204         /* compact repeated control characters and spaces into a single space */
 205         while((c = (unsigned char) *s++) && *start < end)
 206                 if (!iscntrl(c) && !isspace(c))
 207                         *(*start)++ = c;
 208                 else {
 209                         while ((c = (unsigned char) *s) &&
 210                                         (iscntrl(c) || isspace(c)))
 211                                 s++;
 212                         *(*start)++ = ' ';
 213                 }
 214 }
 215
 216 static char *lmonth[] = {
 217         "January",   "February", "March",    "April",
 218         "May",       "June",     "July",     "August",
 219         "September", "October",  "November", "December"
 220 };
 221
 222 static char *
 223 get_x400_friendly(char *mbox, char *buffer, int buffer_len)
 224 {
 225         char given[BUFSIZ], surname[BUFSIZ];
 226
 227         if (mbox == NULL)
 228                 return NULL;
 229         if (*mbox == '"')
 230                 mbox++;
 231         if (*mbox != '/')
 232                 return NULL;
 233
 234         if (get_x400_comp(mbox, "/PN=", buffer, buffer_len)) {
 235                 for (mbox = buffer; (mbox = strchr(mbox, '.')); )
 236                         *mbox++ = ' ';
 237
 238                 return buffer;
 239         }
 240
 241         if (!get_x400_comp(mbox, "/S=", surname, sizeof(surname)))
 242                 return NULL;
 243
 244         if (get_x400_comp(mbox, "/G=", given, sizeof(given)))
 245                 snprintf(buffer, buffer_len, "%s %s", given, surname);
 246         else
 247                 snprintf(buffer, buffer_len, "%s", surname);
 248
 249         return buffer;
 250 }
 251
 252 static int
 253 get_x400_comp(char *mbox, char *key, char *buffer, int buffer_len)
 254 {
 255         int idx;
 256         char *cp;
 257
 258         if ((idx = stringdex(key, mbox)) < 0
 259                 || !(cp = strchr(mbox += idx + strlen(key), '/')))
 260                 return 0;
 261
 262         snprintf(buffer, buffer_len, "%*.*s", (int)(cp - mbox), (int)(cp - mbox), mbox);
 263         return 1;
 264 }
 265
 266 struct format *
 267 fmt_scan(struct format *format, char *scanl, int width, int *dat)
 268 {
 269         char *cp, *ep;
 270         unsigned char *sp;
 271         char *savestr = NULL;
 272         unsigned char *str = NULL;
 273         char buffer[BUFSIZ], buffer2[BUFSIZ];
 274         int i, c, ljust, n;
 275         int value = 0;
 276         time_t t;
 277         struct format *fmt;
 278         struct comp *comp;
 279         struct tws *tws;
 280         struct mailname *mn;
 281
 282         cp = scanl;
 283         ep = scanl + width - 1;
 284
 285         for (fmt = format; fmt->f_type != FT_DONE; fmt++)
 286                 switch (fmt->f_type) {
 287                 case FT_PARSEADDR:
 288                 case FT_PARSEDATE:
 289                         fmt->f_comp->c_flags &= ~CF_PARSED;
 290                         break;
 291                 }
 292
 293         fmt = format;
 294
 295         while (cp < ep) {
 296                 switch (fmt->f_type) {
 297
 298                 case FT_COMP:
 299                         cpstripped(&cp, ep, fmt->f_comp->c_text);
 300                         break;
 301                 case FT_COMPF:
 302                         cptrimmed(&cp, fmt->f_comp->c_text, fmt->f_width, fmt->f_fill, ep - cp);
 303                         break;
 304
 305                 case FT_LIT:
 306                         sp = fmt->f_text;
 307                         while( (c = *sp++) && cp < ep)
 308                                 *cp++ = c;
 309                         break;
 310                 case FT_LITF:
 311                         sp = fmt->f_text;
 312                         ljust = 0;
 313                         i = fmt->f_width;
 314                         if (i < 0) {
 315                                 i = -i;
 316                                 ljust++;  /* XXX should do something with this */
 317                         }
 318                         while( (c = *sp++) && --i >= 0 && cp < ep)
 319                                 *cp++ = c;
 320                         while( --i >= 0 && cp < ep)
 321                                 *cp++ = fmt->f_fill;
 322                         break;
 323
 324                 case FT_STR:
 325                         cpstripped(&cp, ep, str);
 326                         break;
 327                 case FT_STRF:
 328                         cptrimmed(&cp, str, fmt->f_width, fmt->f_fill, ep - cp);
 329                         break;
 330                 case FT_STRFW:
 331                         adios(NULL, "internal error (FT_STRFW)");
 332
 333                 case FT_NUM:
 334                         n = snprintf(cp, ep - cp + 1, "%d", value);
 335                         if (n >= 0) {
 336                                 if (n >= ep - cp) {
 337                                         cp = ep;
 338                                 } else
 339                                         cp += n;
 340                         }
 341                         break;
 342                 case FT_NUMF:
 343                         cpnumber(&cp, value, fmt->f_width, fmt->f_fill, ep - cp);
 344                         break;
 345
 346                 case FT_CHAR:
 347                         *cp++ = fmt->f_char;
 348                         break;
 349
 350                 case FT_DONE:
 351                         goto finished;
 352
 353                 case FT_IF_S:
 354                         if (!(value = (str && *str))) {
 355                                 fmt += fmt->f_skip;
 356                                 continue;
 357                         }
 358                         break;
 359
 360                 case FT_IF_S_NULL:
 361                         if (!(value = (str == NULL || *str == 0))) {
 362                                 fmt += fmt->f_skip;
 363                                 continue;
 364                         }
 365                         break;
 366
 367                 case FT_IF_V_EQ:
 368                         if (value != fmt->f_value) {
 369                                 fmt += fmt->f_skip;
 370                                 continue;
 371                         }
 372                         break;
 373
 374                 case FT_IF_V_NE:
 375                         if (value == fmt->f_value) {
 376                                 fmt += fmt->f_skip;
 377                                 continue;
 378                         }
 379                         break;
 380
 381                 case FT_IF_V_GT:
 382                         if (value <= fmt->f_value) {
 383                                 fmt += fmt->f_skip;
 384                                 continue;
 385                         }
 386                         break;
 387
 388                 case FT_IF_MATCH:
 389                         if (!(value = (str && match(str, fmt->f_text)))) {
 390                                 fmt += fmt->f_skip;
 391                                 continue;
 392                         }
 393                         break;
 394
 395                 case FT_V_MATCH:
 396                         if (str)
 397                                 value = match(str, fmt->f_text);
 398                         else
 399                                 value = 0;
 400                         break;
 401
 402                 case FT_IF_AMATCH:
 403                         if (!(value = (str && uprf(str, fmt->f_text)))) {
 404                                 fmt += fmt->f_skip;
 405                                 continue;
 406                         }
 407                         break;
 408
 409                 case FT_V_AMATCH:
 410                         value = uprf(str, fmt->f_text);
 411                         break;
 412
 413                 case FT_S_NONNULL:
 414                         value = (str != NULL && *str != 0);
 415                         break;
 416
 417                 case FT_S_NULL:
 418                         value = (str == NULL || *str == 0);
 419                         break;
 420
 421                 case FT_V_EQ:
 422                         value = (fmt->f_value == value);
 423                         break;
 424
 425                 case FT_V_NE:
 426                         value = (fmt->f_value != value);
 427                         break;
 428
 429                 case FT_V_GT:
 430                         value = (fmt->f_value > value);
 431                         break;
 432
 433                 case FT_GOTO:
 434                         fmt += fmt->f_skip;
 435                         continue;
 436
 437                 case FT_NOP:
 438                         break;
 439
 440                 case FT_LS_COMP:
 441                         str = fmt->f_comp->c_text;
 442                         break;
 443                 case FT_LS_LIT:
 444                         str = fmt->f_text;
 445                         break;
 446                 case FT_LS_GETENV:
 447                         if (!(str = getenv(fmt->f_text)))
 448                                 str = "";
 449                         break;
 450                 case FT_LS_CFIND:
 451                         if (!(str = context_find(fmt->f_text)))
 452                                 str = "";
 453                         break;
 454
 455                 case FT_LS_DECODECOMP:
 456                         if (decode_rfc2047(fmt->f_comp->c_text, buffer2, sizeof(buffer2)))
 457                                 str = buffer2;
 458                         else
 459                                 str = fmt->f_comp->c_text;
 460                         break;
 461
 462                 case FT_LS_DECODE:
 463                         if (str && decode_rfc2047(str, buffer2, sizeof(buffer2)))
 464                                 str = buffer2;
 465                         break;
 466
 467                 case FT_LS_TRIM:
 468                         if (str) {
 469                                 unsigned char *xp;
 470
 471                                 strncpy(buffer, str, sizeof(buffer));
 472                                 buffer[sizeof(buffer)-1] = '\0';
 473                                 str = buffer;
 474                                 while (isspace(*str))
 475                                                 str++;
 476                                 ljust = 0;
 477                                 if ((i = fmt->f_width) < 0) {
 478                                                 i = -i;
 479                                                 ljust++;
 480                                 }
 481
 482                                 if (!ljust && i > 0 && strlen(str) > i)
 483                                                 str[i] = '\0';
 484                                 xp = str;
 485                                 xp += strlen(str) - 1;
 486                                 while (xp > str && isspace(*xp))
 487                                                 *xp-- = '\0';
 488                                 if (ljust && i > 0 && strlen(str) > i)
 489                                         str += strlen(str) - i;
 490                         }
 491                         break;
 492
 493                 case FT_LV_COMPFLAG:
 494                         value = (fmt->f_comp->c_flags & CF_TRUE) != 0;
 495                         break;
 496                 case FT_LV_COMP:
 497                         value = (comp = fmt->f_comp)->c_text ? atoi(comp->c_text) : 0;
 498                         break;
 499                 case FT_LV_LIT:
 500                         value = fmt->f_value;
 501                         break;
 502                 case FT_LV_DAT:
 503                         value = dat[fmt->f_value];
 504                         break;
 505                 case FT_LV_STRLEN:
 506                         if (str != NULL)
 507                                 value = strlen(str);
 508                         else
 509                                 value = 0;
 510                         break;
 511                 case FT_LV_CHAR_LEFT:
 512                         value = width - (cp - scanl);
 513                         break;
 514                 case FT_LV_PLUS_L:
 515                         value += fmt->f_value;
 516                         break;
 517                 case FT_LV_MINUS_L:
 518                         value = fmt->f_value - value;
 519                         break;
 520                 case FT_LV_DIVIDE_L:
 521                         if (fmt->f_value)
 522                                 value = value / fmt->f_value;
 523                         else
 524                                 value = 0;
 525                         break;
 526                 case FT_LV_MODULO_L:
 527                         if (fmt->f_value)
 528                                 value = value % fmt->f_value;
 529                         else
 530                                 value = 0;
 531                         break;
 532                 case FT_SAVESTR:
 533                         savestr = str;
 534                         break;
 535
 536                 case FT_LV_SEC:
 537                         value = fmt->f_comp->c_tws->tw_sec;
 538                         break;
 539                 case FT_LV_MIN:
 540                         value = fmt->f_comp->c_tws->tw_min;
 541                         break;
 542                 case FT_LV_HOUR:
 543                         value = fmt->f_comp->c_tws->tw_hour;
 544                         break;
 545                 case FT_LV_MDAY:
 546                         value = fmt->f_comp->c_tws->tw_mday;
 547                         break;
 548                 case FT_LV_MON:
 549                         value = fmt->f_comp->c_tws->tw_mon + 1;
 550                         break;
 551                 case FT_LS_MONTH:
 552                         str = tw_moty[fmt->f_comp->c_tws->tw_mon];
 553                         break;
 554                 case FT_LS_LMONTH:
 555                         str = lmonth[fmt->f_comp->c_tws->tw_mon];
 556                         break;
 557                 case FT_LS_ZONE:
 558                         str = dtwszone(fmt->f_comp->c_tws);
 559                         break;
 560                 case FT_LV_YEAR:
 561                         value = fmt->f_comp->c_tws->tw_year;
 562                         break;
 563                 case FT_LV_WDAY:
 564                         if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 565                                 set_dotw(tws);
 566                         value = tws->tw_wday;
 567                         break;
 568                 case FT_LS_DAY:
 569                         if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 570                                 set_dotw(tws);
 571                         str = tw_dotw[tws->tw_wday];
 572                         break;
 573                 case FT_LS_WEEKDAY:
 574                         if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 575                                 set_dotw(tws);
 576                         str = tw_ldotw[tws->tw_wday];
 577                         break;
 578                 case FT_LV_YDAY:
 579                         value = fmt->f_comp->c_tws->tw_yday;
 580                         break;
 581                 case FT_LV_ZONE:
 582                         value = fmt->f_comp->c_tws->tw_zone;
 583                         break;
 584                 case FT_LV_CLOCK:
 585                         if ((value = fmt->f_comp->c_tws->tw_clock) == 0)
 586                                 value = dmktime(fmt->f_comp->c_tws);
 587                         break;
 588                 case FT_LV_RCLOCK:
 589                         if ((value = fmt->f_comp->c_tws->tw_clock) == 0)
 590                                 value = dmktime(fmt->f_comp->c_tws);
 591                         value = time((time_t *) 0) - value;
 592                         break;
 593                 case FT_LV_DAYF:
 594                         if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 595                                 set_dotw(tws);
 596                         switch (fmt->f_comp->c_tws->tw_flags & TW_SDAY) {
 597                         case TW_SEXP:
 598                                 value = 1; break;
 599                         case TW_SIMP:
 600                                 value = 0; break;
 601                         default:
 602                                 value = -1; break;
 603                         }
 604                 case FT_LV_ZONEF:
 605                         if ((fmt->f_comp->c_tws->tw_flags & TW_SZONE) == TW_SZEXP)
 606                                 value = 1;
 607                         else
 608                                 value = -1;
 609                         break;
 610                 case FT_LV_DST:
 611                         value = fmt->f_comp->c_tws->tw_flags & TW_DST;
 612                         break;
 613                 case FT_LS_822DATE:
 614                         str = dasctime(fmt->f_comp->c_tws , TW_ZONE);
 615                         break;
 616                 case FT_LS_PRETTY:
 617                         str = dasctime(fmt->f_comp->c_tws, TW_NULL);
 618                         break;
 619
 620                 case FT_LS_PERS:
 621                         str = fmt->f_comp->c_mn->m_pers;
 622                         break;
 623                 case FT_LS_MBOX:
 624                         str = fmt->f_comp->c_mn->m_mbox;
 625                         break;
 626                 case FT_LS_HOST:
 627                         str = fmt->f_comp->c_mn->m_host;
 628                         break;
 629                 case FT_LS_PATH:
 630                         str = fmt->f_comp->c_mn->m_path;
 631                         break;
 632                 case FT_LS_GNAME:
 633                         str = fmt->f_comp->c_mn->m_gname;
 634                         break;
 635                 case FT_LS_NOTE:
 636                         str = fmt->f_comp->c_mn->m_note;
 637                         break;
 638                 case FT_LS_822ADDR:
 639                         str = adrformat( fmt->f_comp->c_mn );
 640                         break;
 641                 case FT_LV_HOSTTYPE:
 642                         value = fmt->f_comp->c_mn->m_type;
 643                         break;
 644                 case FT_LV_INGRPF:
 645                         value = fmt->f_comp->c_mn->m_ingrp;
 646                         break;
 647                 case FT_LV_NOHOSTF:
 648                         value = fmt->f_comp->c_mn->m_nohost;
 649                         break;
 650                 case FT_LS_ADDR:
 651                 case FT_LS_FRIENDLY:
 652                         if ((mn = fmt->f_comp->c_mn) == &fmt_mnull) {
 653                                 str = fmt->f_comp->c_text;
 654                                 break;
 655                         }
 656                         if (fmt->f_type == FT_LS_ADDR)
 657                                 goto unfriendly;
 658                         if ((str = mn->m_pers) == NULL) {
 659                                 if ((str = mn->m_note)) {
 660                                         strncpy(buffer, str, sizeof(buffer));
 661                                         buffer[sizeof(buffer)-1] = '\0';
 662                                         str = buffer;
 663                                         if (*str == '(')
 664                                                         str++;
 665                                         sp = str + strlen(str) - 1;
 666                                         if (*sp == ')') {
 667                                                 *sp-- = '\0';
 668                                                 while (sp >= str)
 669                                                         if (*sp == ' ')
 670                                                                 *sp-- = '\0';
 671                                                         else
 672                                                                 break;
 673                                         }
 674                                 } else if (!(str = get_x400_friendly(mn->m_mbox,
 675                                         buffer, sizeof(buffer)))) {
 676                 unfriendly: ;
 677                                         switch (mn->m_type) {
 678                                         case LOCALHOST:
 679                                                 str = mn->m_mbox;
 680                                                 break;
 681                                         default:
 682                                                 if (mn->m_mbox) {
 683                                                         snprintf(buffer, sizeof(buffer), "%s@%s", mn->m_mbox, mn->m_host);
 684                                                         str= buffer;
 685                                                 } else
 686                                                         str = mn->m_text;
 687                                                 break;
 688                                   }
 689                                 }
 690                         }
 691                         break;
 692
 693
 694                 /* UNQUOTEs RFC-2822 quoted-string and quoted-pair */
 695                 case FT_LS_UNQUOTE:
 696                         if (str) {
 697                                 int m;
 698                                 strncpy(buffer, str, sizeof(buffer));
 699                                 /* strncpy doesn't NUL-terminate if it fills the buffer */
 700                                 buffer[sizeof(buffer)-1] = '\0';
 701                                 str = buffer;
 702
 703                                 /* we will parse from buffer to buffer2 */
 704                                 n = 0; /* n is the input position in str */
 705                                 m = 0; /* m is the ouput position in buffer2 */
 706
 707                                 while ( str[n] != '\0') {
 708                                         switch ( str[n] ) {
 709                                         case '\\':
 710                                                 n++;
 711                                                 if ( str[n] != '\0')
 712                                                         buffer2[m++] = str[n++];
 713                                                 break;
 714                                         case '"':
 715                                                 n++;
 716                                                 break;
 717                                         default:
 718                                                 buffer2[m++] = str[n++];
 719                                                 break;
 720                                         }
 721                                 }
 722                                 buffer2[m] = '\0';
 723                                 str = buffer2;
 724                         }
 725                         break;
 726
 727                 case FT_LOCALDATE:
 728                         comp = fmt->f_comp;
 729                         if ((t = comp->c_tws->tw_clock) == 0)
 730                                 t = dmktime(comp->c_tws);
 731                         tws = dlocaltime(&t);
 732                         *comp->c_tws = *tws;
 733                         break;
 734
 735                 case FT_GMTDATE:
 736                         comp = fmt->f_comp;
 737                         if ((t = comp->c_tws->tw_clock) == 0)
 738                                 t = dmktime(comp->c_tws);
 739                         tws = dgmtime(&t);
 740                         *comp->c_tws = *tws;
 741                         break;
 742
 743                 case FT_PARSEDATE:
 744                         comp = fmt->f_comp;
 745                         if (comp->c_flags & CF_PARSED)
 746                                 break;
 747                         if ((sp = comp->c_text) && (tws = dparsetime(sp))) {
 748                                 *comp->c_tws = *tws;
 749                                 comp->c_flags &= ~CF_TRUE;
 750                         } else if ((comp->c_flags & CF_DATEFAB) == 0) {
 751                                 memset((char *) comp->c_tws, 0, sizeof *comp->c_tws);
 752                                 comp->c_flags = CF_TRUE;
 753                         }
 754                         comp->c_flags |= CF_PARSED;
 755                         break;
 756
 757                 case FT_FORMATADDR:
 758                         /*
 759                         ** hook for custom address list formatting
 760                         ** (see replsbr.c)
 761                         */
 762                         str = formataddr(savestr, str);
 763                         break;
 764
 765                 case FT_PUTADDR:
 766                         /*
 767                         ** output the str register as an address component,
 768                         ** splitting it into multiple lines if necessary.  The
 769                         ** value reg. contains the max line length.  The lit.
 770                         ** field may contain a string to prepend to the result
 771                         ** (e.g., "To: ")
 772                         */
 773                         {
 774                         unsigned char *lp;
 775                         char *lastb;
 776                         int indent, wid, len;
 777
 778                         lp = str;
 779                         wid = value;
 780                         len = strlen(str);
 781                         sp = fmt->f_text;
 782                         indent = strlen(sp);
 783                         wid -= indent;
 784                         while( (c = *sp++) && cp < ep)
 785                                 *cp++ = c;
 786                         while (len > wid) {
 787                                 /* try to break at a comma; failing that,
 788                                  * break at a space.
 789                                  */
 790                                 lastb = 0; sp = lp + wid;
 791                                 while (sp > lp && (c = *--sp) != ',') {
 792                                         if (! lastb && isspace(c))
 793                                                 lastb = sp - 1;
 794                                 }
 795                                 if (sp == lp) {
 796                                         if (! (sp = lastb)) {
 797                                                 sp = lp + wid - 1;
 798                                                 while (*sp && *sp != ',' && !isspace(*sp))
 799                                                         sp++;
 800                                                 if (*sp != ',')
 801                                                         sp--;
 802                                         }
 803                                 }
 804                                 len -= sp - lp + 1;
 805                                 while (cp < ep && lp <= sp)
 806                                         *cp++ = *lp++;
 807                                 while (isspace(*lp))
 808                                         lp++, len--;
 809                                 if (*lp) {
 810                                         if (cp < ep)
 811                                                 *cp++ = '\n';
 812                                         for (i=indent; cp < ep && i > 0; i--)
 813                                                 *cp++ = ' ';
 814                                 }
 815                         }
 816                         cpstripped(&cp, ep, lp);
 817                         }
 818                         break;
 819
 820                 case FT_PARSEADDR:
 821                         comp = fmt->f_comp;
 822                         if (comp->c_flags & CF_PARSED)
 823                                 break;
 824                         if (comp->c_mn != &fmt_mnull)
 825                                 mnfree(comp->c_mn);
 826                         if ((sp = comp->c_text) && (sp = getname(sp)) &&
 827                                 (mn = getm(sp, NULL, 0, fmt_norm, NULL))) {
 828                                 comp->c_mn = mn;
 829                                 while (getname(""))
 830                                         ;
 831                                 comp->c_flags |= CF_PARSED;
 832                         } else {
 833                                 while (getname(""))  /* XXX */
 834                                         ;
 835                                 comp->c_mn = &fmt_mnull;
 836                         }
 837                         break;
 838
 839                 case FT_MYMBOX:
 840                         /*
 841                         ** if there's no component, we say true.  Otherwise we
 842                         ** say "true" only if we can parse the address and it
 843                         ** matches one of our addresses.
 844                         */
 845                         comp = fmt->f_comp;
 846                         if (comp->c_mn != &fmt_mnull)
 847                                 mnfree(comp->c_mn);
 848                         if ((sp = comp->c_text) && (sp = getname(sp)) &&
 849                                 (mn = getm(sp, NULL, 0, AD_NAME, NULL))) {
 850                                 comp->c_mn = mn;
 851                                 if (ismymbox(mn))
 852                                         comp->c_flags |= CF_TRUE;
 853                                 else
 854                                         comp->c_flags &= ~CF_TRUE;
 855                                 while ((sp = getname(sp)))
 856                                         if ((comp->c_flags & CF_TRUE) == 0 &&
 857                                                 (mn = getm(sp, NULL, 0, AD_NAME, NULL)))
 858                                                 if (ismymbox(mn))
 859                                                         comp->c_flags |= CF_TRUE;
 860                         } else {
 861                                 while (getname(""))  /* XXX */
 862                                         ;
 863                                 if (comp->c_text == 0)
 864                                         comp->c_flags |= CF_TRUE;
 865                                 else
 866                                         comp->c_flags &= ~CF_TRUE;
 867                                 comp->c_mn = &fmt_mnull;
 868                         }
 869                         break;
 870
 871                 }
 872                 fmt++;
 873         }
 874 finished:;
 875         if (cp[-1] != '\n')
 876                 *cp++ = '\n';
 877         *cp = '\0';
 878         return ((struct format *)0);
 879
 880 #ifdef JLR
 881         /* I'll remove this as soon as I understand what it does. --meillo */
 882         if (cp[-1] != '\n')
 883                 *cp++ = '\n';
 884         while (fmt->f_type != FT_DONE)
 885                 fmt++;
 886
 887         finished:;
 888         *cp = '\0';
 889         return (fmt->f_value ? ++fmt : (struct format *) 0);
 890 #endif /* JLR */
 891
 892 }