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