diplodocus.org Git - nmh/blob - sbr/fmt_scan.c

   1
   2 /*
   3  * fmt_scan.c -- format string interpretation
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <h/addrsbr.h>
  14 #include <h/fmt_scan.h>
  15 #include <h/tws.h>
  16 #include <h/fmt_compile.h>
  17
  18 #ifdef TIME_WITH_SYS_TIME
  19 # include <sys/time.h>
  20 # include <time.h>
  21 #else
  22 # ifdef TM_IN_SYS_TIME
  23 #  include <sys/time.h>
  24 # else
  25 #  include <time.h>
  26 # endif
  27 #endif
  28 #ifdef MULTIBYTE_SUPPORT
  29 #  include <wctype.h>
  30 #  include <wchar.h>
  31 #endif
  32
  33 #define NFMTS MAXARGS
  34
  35 extern char *formataddr ();     /* hook for custom address formatting */
  36
  37 #ifdef LBL
  38 struct msgs *fmt_current_folder; /* current folder (set by main program) */
  39 #endif
  40
  41 extern int fmt_norm;            /* defined in sbr/fmt_def.c = AD_NAME */
  42 struct mailname fmt_mnull;
  43
  44 /*
  45  * static prototypes
  46  */
  47 static int match (char *, char *);
  48 static char *get_x400_friendly (char *, char *, int);
  49 static int get_x400_comp (char *, char *, char *, int);
  50
  51
  52 /*
  53  * test if string "sub" appears anywhere in
  54  * string "str" (case insensitive).
  55  */
  56
  57 static int
  58 match (char *str, char *sub)
  59 {
  60     int c1, c2;
  61     char *s1, *s2;
  62
  63 #ifdef LOCALE
  64     while ((c1 = *sub)) {
  65         c1 = (isalpha(c1) && isupper(c1)) ? tolower(c1) : c1;
  66         while ((c2 = *str++) && c1 != ((isalpha(c2) && isupper(c2)) ? tolower(c2) : c2))
  67             ;
  68         if (! c2)
  69             return 0;
  70         s1 = sub + 1; s2 = str;
  71         while ((c1 = *s1++) && ((isalpha(c1) && isupper(c1)) ? tolower(c1) : c1) == ((isalpha(c2 =*s2++) && isupper(c2)) ? tolower(c2) : c2))
  72             ;
  73         if (! c1)
  74             return 1;
  75     }
  76 #else
  77     while ((c1 = *sub)) {
  78         while ((c2 = *str++) && (c1 | 040) != (c2 | 040))
  79             ;
  80         if (! c2)
  81             return 0;
  82         s1 = sub + 1; s2 = str;
  83         while ((c1 = *s1++) && (c1 | 040) == (*s2++ | 040))
  84             ;
  85         if (! c1)
  86             return 1;
  87     }
  88 #endif
  89     return 1;
  90 }
  91
  92 /*
  93  * copy a number to the destination subject to a maximum width
  94  */
  95 static void
  96 cpnumber(char **dest, int num, unsigned int wid, char fill, size_t n) {
  97     int i, c;
  98     char *sp;
  99     char *cp = *dest;
 100     char *ep = cp + n;
 101
 102     if (cp + wid < ep) {
 103         if ((i = (num)) < 0)
 104             i = -(num);
 105         if ((c = (wid)) < 0)
 106             c = -c;
 107         sp = cp + c;
 108         do {
 109             *--sp = (i % 10) + '0';
 110             i /= 10;
 111         } while (i > 0 && sp > cp);
 112         if (i > 0)
 113             *sp = '?';
 114         else if ((num) < 0 && sp > cp)
 115             *--sp = '-';
 116         while (sp > cp)
 117             *--sp = fill;
 118         cp += c;
 119     }
 120     *dest = cp;
 121 }
 122
 123 /*
 124  * copy string from str to dest padding with the fill character to a size
 125  * of wid characters. if wid is negative, the string is right aligned
 126  * no more than n bytes are copied
 127  */
 128 static void
 129 cptrimmed(char **dest, char *str, unsigned int wid, char fill, size_t n) {
 130     int remaining;     /* remaining output width available */
 131     int c, ljust, w;
 132     int end;           /* number of input bytes remaining in str */
 133 #ifdef MULTIBYTE_SUPPORT
 134     int char_len;      /* bytes in current character */
 135     wchar_t wide_char;
 136 #endif
 137     char *sp;          /* current position in source string */
 138     char *cp = *dest;  /* current position in destination string */
 139     char *ep = cp + n; /* end of destination buffer */
 140     int prevCtrl = 1;
 141
 142     /* get alignment */
 143     ljust = 0;
 144     if ((remaining = (wid)) < 0) {
 145         remaining = -remaining;
 146         ljust++;
 147     }
 148     if ((sp = (str))) {
 149         mbtowc(NULL, NULL, 0); /* reset shift state */
 150         end = strlen(str);
 151         while (*sp && remaining > 0 && end > 0) {
 152 #ifdef MULTIBYTE_SUPPORT
 153             char_len = mbtowc(&wide_char, sp, end);
 154             if (char_len <= 0 || (cp + char_len > ep))
 155                 break;
 156
 157             end -= char_len;
 158
 159             if (iswcntrl(wide_char) || iswspace(wide_char)) {
 160                 sp += char_len;
 161 #else
 162             end--;
 163             if (iscntrl(*sp) || isspace(*sp)) {
 164                 sp++;
 165 #endif
 166                 if (!prevCtrl) {
 167                     *cp++ = ' ';
 168                     remaining--;
 169                 }
 170
 171                 prevCtrl = 1;
 172                 continue;
 173             }
 174             prevCtrl = 0;
 175
 176 #ifdef MULTIBYTE_SUPPORT
 177             w = wcwidth(wide_char);
 178             if (w >= 0 && remaining >= w) {
 179                 strncpy(cp, sp, char_len);
 180                 cp += char_len;
 181                 remaining -= w;
 182             }
 183             sp += char_len;
 184 #else
 185             *cp++ = *sp++;
 186             remaining--;
 187 #endif
 188         }
 189     }
 190
 191     if (ljust) {
 192         if (cp + remaining > ep)
 193             remaining = ep - cp;
 194         ep = cp + remaining;
 195         if (remaining > 0) {
 196             /* copy string to the right */
 197             while (--cp >= *dest)
 198                 *(cp + remaining) = *cp;
 199             /* add padding at the beginning */
 200             cp += remaining;
 201             for (c=remaining; c>0; c--)
 202                 *cp-- = fill;
 203         }
 204         *dest = ep;
 205     } else {
 206         /* pad remaining space */
 207         while (remaining-- > 0 && cp < ep)
 208                 *cp++ = fill;
 209         *dest = cp;
 210     }
 211 }
 212
 213 static void
 214 cpstripped (char **start, char *end, char *str)
 215 {
 216     int c;
 217     char *s = str;
 218
 219     if (!s)
 220         return;
 221
 222     /* skip any initial control characters or spaces */
 223     while ((c = (unsigned char) *s) &&
 224 #ifdef LOCALE
 225             (iscntrl(c) || isspace(c)))
 226 #else
 227             (c <= 32))
 228 #endif
 229         s++;
 230
 231     /* compact repeated control characters and spaces into a single space */
 232     while((c = (unsigned char) *s++) && *start < end)
 233         if (!iscntrl(c) && !isspace(c))
 234             *(*start)++ = c;
 235         else {
 236             while ((c = (unsigned char) *s) &&
 237 #ifdef LOCALE
 238                     (iscntrl(c) || isspace(c)))
 239 #else
 240                     (c <= 32))
 241 #endif
 242                 s++;
 243             *(*start)++ = ' ';
 244         }
 245 }
 246
 247 static char *lmonth[] = { "January",  "February","March",   "April",
 248                           "May",      "June",    "July",    "August",
 249                           "September","October", "November","December" };
 250
 251 static char *
 252 get_x400_friendly (char *mbox, char *buffer, int buffer_len)
 253 {
 254     char given[BUFSIZ], surname[BUFSIZ];
 255
 256     if (mbox == NULL)
 257         return NULL;
 258     if (*mbox == '"')
 259         mbox++;
 260     if (*mbox != '/')
 261         return NULL;
 262
 263     if (get_x400_comp (mbox, "/PN=", buffer, buffer_len)) {
 264         for (mbox = buffer; (mbox = strchr(mbox, '.')); )
 265             *mbox++ = ' ';
 266
 267         return buffer;
 268     }
 269
 270     if (!get_x400_comp (mbox, "/S=", surname, sizeof(surname)))
 271         return NULL;
 272
 273     if (get_x400_comp (mbox, "/G=", given, sizeof(given)))
 274         snprintf (buffer, buffer_len, "%s %s", given, surname);
 275     else
 276         snprintf (buffer, buffer_len, "%s", surname);
 277
 278     return buffer;
 279 }
 280
 281 static int
 282 get_x400_comp (char *mbox, char *key, char *buffer, int buffer_len)
 283 {
 284     int idx;
 285     char *cp;
 286
 287     if ((idx = stringdex (key, mbox)) < 0
 288             || !(cp = strchr(mbox += idx + strlen (key), '/')))
 289         return 0;
 290
 291     snprintf (buffer, buffer_len, "%*.*s", cp - mbox, cp - mbox, mbox);
 292     return 1;
 293 }
 294
 295 struct format *
 296 fmt_scan (struct format *format, char *scanl, int width, int *dat)
 297 {
 298     char *cp, *ep, *sp;
 299     char *savestr, *str = NULL;
 300     char buffer[BUFSIZ], buffer2[BUFSIZ];
 301     int i, c, ljust, n;
 302     int value = 0;
 303     time_t t;
 304     struct format *fmt;
 305     struct comp *comp;
 306     struct tws *tws;
 307     struct mailname *mn;
 308
 309     cp = scanl;
 310     ep = scanl + width - 1;
 311
 312     for (fmt = format; fmt->f_type != FT_DONE; fmt++)
 313         switch (fmt->f_type) {
 314         case FT_PARSEADDR:
 315         case FT_PARSEDATE:
 316             fmt->f_comp->c_flags &= ~CF_PARSED;
 317             break;
 318         }
 319
 320     fmt = format;
 321
 322     while (cp < ep) {
 323         switch (fmt->f_type) {
 324
 325         case FT_COMP:
 326             cpstripped (&cp, ep, fmt->f_comp->c_text);
 327             break;
 328         case FT_COMPF:
 329             cptrimmed (&cp, fmt->f_comp->c_text, fmt->f_width, fmt->f_fill, ep - cp);
 330             break;
 331
 332         case FT_LIT:
 333             sp = fmt->f_text;
 334             while( (c = *sp++) && cp < ep)
 335                 *cp++ = c;
 336             break;
 337         case FT_LITF:
 338             sp = fmt->f_text;
 339             ljust = 0;
 340             i = fmt->f_width;
 341             if (i < 0) {
 342                 i = -i;
 343                 ljust++;                /* XXX should do something with this */
 344             }
 345             while( (c = *sp++) && --i >= 0 && cp < ep)
 346                 *cp++ = c;
 347             while( --i >= 0 && cp < ep)
 348                 *cp++ = fmt->f_fill;
 349             break;
 350
 351         case FT_STR:
 352             cpstripped (&cp, ep, str);
 353             break;
 354         case FT_STRF:
 355             cptrimmed (&cp, str, fmt->f_width, fmt->f_fill, ep - cp);
 356             break;
 357         case FT_STRFW:
 358             adios (NULL, "internal error (FT_STRFW)");
 359
 360         case FT_NUM:
 361             n = snprintf(cp, ep - cp + 1, "%d", value);
 362             if (n >= 0)
 363                 if (n >= ep - cp) {
 364                     cp = ep;
 365                 } else
 366                     cp += n;
 367             break;
 368         case FT_NUMF:
 369             cpnumber (&cp, value, fmt->f_width, fmt->f_fill, ep - cp);
 370             break;
 371
 372         case FT_CHAR:
 373             *cp++ = fmt->f_char;
 374             break;
 375
 376         case FT_DONE:
 377             goto finished;
 378
 379         case FT_IF_S:
 380             if (!(value = (str && *str))) {
 381                 fmt += fmt->f_skip;
 382                 continue;
 383             }
 384             break;
 385
 386         case FT_IF_S_NULL:
 387             if (!(value = (str == NULL || *str == 0))) {
 388                 fmt += fmt->f_skip;
 389                 continue;
 390             }
 391             break;
 392
 393         case FT_IF_V_EQ:
 394             if (value != fmt->f_value) {
 395                 fmt += fmt->f_skip;
 396                 continue;
 397             }
 398             break;
 399
 400         case FT_IF_V_NE:
 401             if (value == fmt->f_value) {
 402                 fmt += fmt->f_skip;
 403                 continue;
 404             }
 405             break;
 406
 407         case FT_IF_V_GT:
 408             if (value <= fmt->f_value) {
 409                 fmt += fmt->f_skip;
 410                 continue;
 411             }
 412             break;
 413
 414         case FT_IF_MATCH:
 415             if (!(value = (str && match (str, fmt->f_text)))) {
 416                 fmt += fmt->f_skip;
 417                 continue;
 418             }
 419             break;
 420
 421         case FT_V_MATCH:
 422             if (str)
 423                 value = match (str, fmt->f_text);
 424             else
 425                 value = 0;
 426             break;
 427
 428         case FT_IF_AMATCH:
 429             if (!(value = (str && uprf (str, fmt->f_text)))) {
 430                 fmt += fmt->f_skip;
 431                 continue;
 432             }
 433             break;
 434
 435         case FT_V_AMATCH:
 436             value = uprf (str, fmt->f_text);
 437             break;
 438
 439         case FT_S_NONNULL:
 440             value = (str != NULL && *str != 0);
 441             break;
 442
 443         case FT_S_NULL:
 444             value = (str == NULL || *str == 0);
 445             break;
 446
 447         case FT_V_EQ:
 448             value = (fmt->f_value == value);
 449             break;
 450
 451         case FT_V_NE:
 452             value = (fmt->f_value != value);
 453             break;
 454
 455         case FT_V_GT:
 456             value = (fmt->f_value > value);
 457             break;
 458
 459         case FT_GOTO:
 460             fmt += fmt->f_skip;
 461             continue;
 462
 463         case FT_NOP:
 464             break;
 465
 466         case FT_LS_COMP:
 467             str = fmt->f_comp->c_text;
 468             break;
 469         case FT_LS_LIT:
 470             str = fmt->f_text;
 471             break;
 472         case FT_LS_GETENV:
 473             if (!(str = getenv (fmt->f_text)))
 474                 str = "";
 475             break;
 476         case FT_LS_CFIND:
 477             if (!(str = context_find (fmt->f_text)))
 478                 str = "";
 479             break;
 480
 481         case FT_LS_DECODECOMP:
 482             if (decode_rfc2047(fmt->f_comp->c_text, buffer2, sizeof(buffer2)))
 483                 str = buffer2;
 484             else
 485                 str = fmt->f_comp->c_text;
 486             break;
 487
 488         case FT_LS_DECODE:
 489             if (str && decode_rfc2047(str, buffer2, sizeof(buffer2)))
 490                 str = buffer2;
 491             break;
 492
 493         case FT_LS_TRIM:
 494             if (str) {
 495                     char *xp;
 496
 497                     strncpy(buffer, str, sizeof(buffer));
 498                     buffer[sizeof(buffer)-1] = '\0';
 499                     str = buffer;
 500                     while (isspace(*str))
 501                             str++;
 502                     ljust = 0;
 503                     if ((i = fmt->f_width) < 0) {
 504                             i = -i;
 505                             ljust++;
 506                     }
 507
 508                     if (!ljust && i > 0 && strlen(str) > i)
 509                             str[i] = '\0';
 510                     xp = str;
 511                     xp += strlen(str) - 1;
 512                     while (xp > str && isspace(*xp))
 513                             *xp-- = '\0';
 514                     if (ljust && i > 0 && strlen(str) > i)
 515                         str += strlen(str) - i;
 516             }
 517             break;
 518
 519         case FT_LV_COMPFLAG:
 520             value = (fmt->f_comp->c_flags & CF_TRUE) != 0;
 521             break;
 522         case FT_LV_COMP:
 523             value = (comp = fmt->f_comp)->c_text ? atoi(comp->c_text) : 0;
 524             break;
 525         case FT_LV_LIT:
 526             value = fmt->f_value;
 527             break;
 528         case FT_LV_DAT:
 529             value = dat[fmt->f_value];
 530             break;
 531         case FT_LV_STRLEN:
 532             if (str != NULL)
 533                     value = strlen(str);
 534             else
 535                     value = 0;
 536             break;
 537         case FT_LV_CHAR_LEFT:
 538             value = width - (cp - scanl);
 539             break;
 540         case FT_LV_PLUS_L:
 541             value += fmt->f_value;
 542             break;
 543         case FT_LV_MINUS_L:
 544             value = fmt->f_value - value;
 545             break;
 546         case FT_LV_DIVIDE_L:
 547             if (fmt->f_value)
 548                 value = value / fmt->f_value;
 549             else
 550                 value = 0;
 551             break;
 552         case FT_LV_MODULO_L:
 553             if (fmt->f_value)
 554                 value = value % fmt->f_value;
 555             else
 556                 value = 0;
 557             break;
 558         case FT_SAVESTR:
 559             savestr = str;
 560             break;
 561
 562         case FT_LV_SEC:
 563             value = fmt->f_comp->c_tws->tw_sec;
 564             break;
 565         case FT_LV_MIN:
 566             value = fmt->f_comp->c_tws->tw_min;
 567             break;
 568         case FT_LV_HOUR:
 569             value = fmt->f_comp->c_tws->tw_hour;
 570             break;
 571         case FT_LV_MDAY:
 572             value = fmt->f_comp->c_tws->tw_mday;
 573             break;
 574         case FT_LV_MON:
 575             value = fmt->f_comp->c_tws->tw_mon + 1;
 576             break;
 577         case FT_LS_MONTH:
 578             str = tw_moty[fmt->f_comp->c_tws->tw_mon];
 579             break;
 580         case FT_LS_LMONTH:
 581             str = lmonth[fmt->f_comp->c_tws->tw_mon];
 582             break;
 583         case FT_LS_ZONE:
 584             str = dtwszone (fmt->f_comp->c_tws);
 585             break;
 586         case FT_LV_YEAR:
 587             value = fmt->f_comp->c_tws->tw_year;
 588             break;
 589         case FT_LV_WDAY:
 590             if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 591                 set_dotw (tws);
 592             value = tws->tw_wday;
 593             break;
 594         case FT_LS_DAY:
 595             if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 596                 set_dotw (tws);
 597             str = tw_dotw[tws->tw_wday];
 598             break;
 599         case FT_LS_WEEKDAY:
 600             if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 601                 set_dotw (tws);
 602             str = tw_ldotw[tws->tw_wday];
 603             break;
 604         case FT_LV_YDAY:
 605             value = fmt->f_comp->c_tws->tw_yday;
 606             break;
 607         case FT_LV_ZONE:
 608             value = fmt->f_comp->c_tws->tw_zone;
 609             break;
 610         case FT_LV_CLOCK:
 611             if ((value = fmt->f_comp->c_tws->tw_clock) == 0)
 612                 value = dmktime(fmt->f_comp->c_tws);
 613             break;
 614         case FT_LV_RCLOCK:
 615             if ((value = fmt->f_comp->c_tws->tw_clock) == 0)
 616                 value = dmktime(fmt->f_comp->c_tws);
 617             value = time((time_t *) 0) - value;
 618             break;
 619         case FT_LV_DAYF:
 620             if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))
 621                 set_dotw (tws);
 622             switch (fmt->f_comp->c_tws->tw_flags & TW_SDAY) {
 623                 case TW_SEXP:
 624                     value = 1; break;
 625                 case TW_SIMP:
 626                     value = 0; break;
 627                 default:
 628                     value = -1; break;
 629             }
 630         case FT_LV_ZONEF:
 631             if ((fmt->f_comp->c_tws->tw_flags & TW_SZONE) == TW_SZEXP)
 632                     value = 1;
 633             else
 634                     value = -1;
 635             break;
 636         case FT_LV_DST:
 637             value = fmt->f_comp->c_tws->tw_flags & TW_DST;
 638             break;
 639         case FT_LS_822DATE:
 640             str = dasctime (fmt->f_comp->c_tws , TW_ZONE);
 641             break;
 642         case FT_LS_PRETTY:
 643             str = dasctime (fmt->f_comp->c_tws, TW_NULL);
 644             break;
 645
 646         case FT_LS_PERS:
 647             str = fmt->f_comp->c_mn->m_pers;
 648             break;
 649         case FT_LS_MBOX:
 650             str = fmt->f_comp->c_mn->m_mbox;
 651             break;
 652         case FT_LS_HOST:
 653             str = fmt->f_comp->c_mn->m_host;
 654             break;
 655         case FT_LS_PATH:
 656             str = fmt->f_comp->c_mn->m_path;
 657             break;
 658         case FT_LS_GNAME:
 659             str = fmt->f_comp->c_mn->m_gname;
 660             break;
 661         case FT_LS_NOTE:
 662             str = fmt->f_comp->c_mn->m_note;
 663             break;
 664         case FT_LS_822ADDR:
 665             str = adrformat( fmt->f_comp->c_mn );
 666             break;
 667         case FT_LV_HOSTTYPE:
 668             value = fmt->f_comp->c_mn->m_type;
 669             break;
 670         case FT_LV_INGRPF:
 671             value = fmt->f_comp->c_mn->m_ingrp;
 672             break;
 673         case FT_LV_NOHOSTF:
 674             value = fmt->f_comp->c_mn->m_nohost;
 675             break;
 676         case FT_LS_ADDR:
 677         case FT_LS_FRIENDLY:
 678             if ((mn = fmt->f_comp->c_mn) == &fmt_mnull) {
 679                 str = fmt->f_comp->c_text;
 680                 break;
 681             }
 682             if (fmt->f_type == FT_LS_ADDR)
 683                 goto unfriendly;
 684             if ((str = mn->m_pers) == NULL) {
 685                 if ((str = mn->m_note)) {
 686                     strncpy (buffer, str, sizeof(buffer));
 687                     buffer[sizeof(buffer)-1] = '\0';
 688                     str = buffer;
 689                     if (*str == '(')
 690                         str++;
 691                     sp = str + strlen(str) - 1;
 692                     if (*sp == ')') {
 693                         *sp-- = '\0';
 694                         while (sp >= str)
 695                             if (*sp == ' ')
 696                                 *sp-- = '\0';
 697                             else
 698                                 break;
 699                     }
 700                 } else if (!(str = get_x400_friendly (mn->m_mbox,
 701                                 buffer, sizeof(buffer)))) {
 702         unfriendly: ;
 703                   switch (mn->m_type) {
 704                     case LOCALHOST:
 705                         str = mn->m_mbox;
 706                         break;
 707                     case UUCPHOST:
 708                         snprintf (buffer, sizeof(buffer), "%s!%s",
 709                                 mn->m_host, mn->m_mbox);
 710                         str = buffer;
 711                         break;
 712                     default:
 713                         if (mn->m_mbox) {
 714                             snprintf (buffer, sizeof(buffer), "%s@%s",
 715                                 mn->m_mbox, mn->m_host);
 716                             str= buffer;
 717                         }
 718                         else
 719                             str = mn->m_text;
 720                         break;
 721                   }
 722                 }
 723             }
 724             break;
 725
 726
 727                 /* UNQUOTEs RFC-2822 quoted-string and quoted-pair */
 728         case FT_LS_UNQUOTE:
 729             if (str) {
 730                 int m;
 731                 strncpy(buffer, str, sizeof(buffer));
 732                 /* strncpy doesn't NUL-terminate if it fills the buffer */
 733                 buffer[sizeof(buffer)-1] = '\0';
 734                 str = buffer;
 735
 736                 /* we will parse from buffer to buffer2 */
 737                 n = 0; /* n is the input position in str */
 738                 m = 0; /* m is the ouput position in buffer2 */
 739
 740                 while ( str[n] != '\0') {
 741                     switch ( str[n] ) {
 742                         case '\\':
 743                             n++;
 744                             if ( str[n] != '\0')
 745                                 buffer2[m++] = str[n++];
 746                             break;
 747                         case '"':
 748                             n++;
 749                             break;
 750                         default:
 751                             buffer2[m++] = str[n++];
 752                             break;
 753                         }
 754                 }
 755                 buffer2[m] = '\0';
 756                 str = buffer2;
 757             }
 758             break;
 759
 760         case FT_LOCALDATE:
 761             comp = fmt->f_comp;
 762             if ((t = comp->c_tws->tw_clock) == 0)
 763                 t = dmktime(comp->c_tws);
 764             tws = dlocaltime(&t);
 765             *comp->c_tws = *tws;
 766             break;
 767
 768         case FT_GMTDATE:
 769             comp = fmt->f_comp;
 770             if ((t = comp->c_tws->tw_clock) == 0)
 771                 t = dmktime(comp->c_tws);
 772             tws = dgmtime(&t);
 773             *comp->c_tws = *tws;
 774             break;
 775
 776         case FT_PARSEDATE:
 777             comp = fmt->f_comp;
 778             if (comp->c_flags & CF_PARSED)
 779                 break;
 780             if ((sp = comp->c_text) && (tws = dparsetime(sp))) {
 781                 *comp->c_tws = *tws;
 782                 comp->c_flags &= ~CF_TRUE;
 783             } else if ((comp->c_flags & CF_DATEFAB) == 0) {
 784                 memset ((char *) comp->c_tws, 0, sizeof *comp->c_tws);
 785                 comp->c_flags = CF_TRUE;
 786             }
 787             comp->c_flags |= CF_PARSED;
 788             break;
 789
 790         case FT_FORMATADDR:
 791             /* hook for custom address list formatting (see replsbr.c) */
 792             str = formataddr (savestr, str);
 793             break;
 794
 795         case FT_PUTADDR:
 796             /* output the str register as an address component,
 797              * splitting it into multiple lines if necessary.  The
 798              * value reg. contains the max line length.  The lit.
 799              * field may contain a string to prepend to the result
 800              * (e.g., "To: ")
 801              */
 802             {
 803             char *lp, *lastb;
 804             int indent, wid, len;
 805
 806             lp = str;
 807             wid = value;
 808             len = strlen (str);
 809             sp = fmt->f_text;
 810             indent = strlen (sp);
 811             wid -= indent;
 812             while( (c = *sp++) && cp < ep)
 813                 *cp++ = c;
 814             while (len > wid) {
 815                 /* try to break at a comma; failing that, break at a
 816                  * space.
 817                  */
 818                 lastb = 0; sp = lp + wid;
 819                 while (sp > lp && (c = *--sp) != ',') {
 820                     if (! lastb && isspace(c))
 821                         lastb = sp - 1;
 822                 }
 823                 if (sp == lp) {
 824                     if (! (sp = lastb)) {
 825                         sp = lp + wid - 1;
 826                         while (*sp && *sp != ',' && !isspace(*sp))
 827                             sp++;
 828                         if (*sp != ',')
 829                             sp--;
 830                     }
 831                 }
 832                 len -= sp - lp + 1;
 833                 while (cp < ep && lp <= sp)
 834                     *cp++ = *lp++;
 835                 while (isspace(*lp))
 836                     lp++, len--;
 837                 if (*lp) {
 838                     if (cp < ep)
 839                         *cp++ = '\n';
 840                     for (i=indent; cp < ep && i > 0; i--)
 841                         *cp++ = ' ';
 842                 }
 843             }
 844             cpstripped (&cp, ep, lp);
 845             }
 846             break;
 847
 848         case FT_PARSEADDR:
 849             comp = fmt->f_comp;
 850             if (comp->c_flags & CF_PARSED)
 851                 break;
 852             if (comp->c_mn != &fmt_mnull)
 853                 mnfree (comp->c_mn);
 854             if ((sp = comp->c_text) && (sp = getname(sp)) &&
 855                 (mn = getm (sp, NULL, 0, fmt_norm, NULL))) {
 856                 comp->c_mn = mn;
 857                 while (getname(""))
 858                     ;
 859                 comp->c_flags |= CF_PARSED;
 860             } else {
 861                 while (getname(""))             /* XXX */
 862                     ;
 863                 comp->c_mn = &fmt_mnull;
 864             }
 865             break;
 866
 867         case FT_MYMBOX:
 868             /*
 869              * if there's no component, we say true.  Otherwise we
 870              * say "true" only if we can parse the address and it
 871              * matches one of our addresses.
 872              */
 873             comp = fmt->f_comp;
 874             if (comp->c_mn != &fmt_mnull)
 875                 mnfree (comp->c_mn);
 876             if ((sp = comp->c_text) && (sp = getname(sp)) &&
 877                 (mn = getm (sp, NULL, 0, AD_NAME, NULL))) {
 878                 comp->c_mn = mn;
 879                 if (ismymbox(mn))
 880                     comp->c_flags |= CF_TRUE;
 881                 else
 882                     comp->c_flags &= ~CF_TRUE;
 883                 while ((sp = getname(sp)))
 884                     if ((comp->c_flags & CF_TRUE) == 0 &&
 885                         (mn = getm (sp, NULL, 0, AD_NAME, NULL)))
 886                         if (ismymbox(mn))
 887                             comp->c_flags |= CF_TRUE;
 888             } else {
 889                 while (getname(""))             /* XXX */
 890                     ;
 891                 if (comp->c_text == 0)
 892                     comp->c_flags |= CF_TRUE;
 893                 else
 894                     comp->c_flags &= ~CF_TRUE;
 895                 comp->c_mn = &fmt_mnull;
 896             }
 897             break;
 898
 899         case FT_ADDTOSEQ:
 900 #ifdef LBL
 901             /* If we're working on a folder (as opposed to a file), add the
 902              * current msg to sequence given in literal field.  Don't
 903              * disturb string or value registers.
 904              */
 905             if (fmt_current_folder)
 906                     seq_addmsg(fmt_current_folder, fmt->f_text, dat[0], -1);
 907 #endif
 908             break;
 909         }
 910         fmt++;
 911     }
 912 #ifndef JLR
 913     finished:;
 914     if (cp[-1] != '\n')
 915         *cp++ = '\n';
 916     *cp   = 0;
 917     return ((struct format *)0);
 918 #else /* JLR */
 919     if (cp[-1] != '\n')
 920         *cp++ = '\n';
 921     while (fmt->f_type != FT_DONE)
 922         fmt++;
 923
 924     finished:;
 925     *cp = '\0';
 926     return (fmt->f_value ? ++fmt : (struct format *) 0);
 927
 928 #endif /* JLR */
 929 }