diplodocus.org Git - nmh/blob - uip/fmttest.c

   1 /* fmttest.c -- A program to help test and debug format instructions
   2  *
   3  * This code is Copyright (c) 2012, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include <h/fmt_scan.h>
  10 #include <h/fmt_compile.h>
  11 #include <h/utils.h>
  12 #include <h/scansbr.h>
  13 #include <h/addrsbr.h>
  14 #include "../sbr/m_maildir.h"
  15
  16 #define FMTTEST_SWITCHES \
  17     X("form formatfile", 0, FORMSW) \
  18     X("format string", 5, FMTSW) \
  19     X("address", 0, ADDRSW) \
  20     X("raw", 0, RAWSW) \
  21     X("date", 0, DATESW) \
  22     X("message", 0, MESSAGESW) \
  23     X("file", 0, FILESW) \
  24     X("nofile", 0, NFILESW) \
  25     X("-component-name component-text", 0, OTHERSW) \
  26     X("dupaddrs", 0, DUPADDRSW) \
  27     X("nodupaddrs", 0, NDUPADDRSW) \
  28     X("ccme", 0, CCMESW) \
  29     X("noccme", 0, NCCMESW) \
  30     X("outsize size-in-characters", 0, OUTSIZESW) \
  31     X("width column-width", 0, WIDTHSW) \
  32     X("msgnum number", 0, MSGNUMSW) \
  33     X("msgcur flag", 0, MSGCURSW) \
  34     X("msgsize size", 0, MSGSIZESW) \
  35     X("unseen flag", 0, UNSEENSW) \
  36     X("dump", 0, DUMPSW) \
  37     X("nodump", 0, NDUMPSW) \
  38     X("trace", 0, TRACESW) \
  39     X("notrace", 0, NTRACESW) \
  40     X("version", 0, VERSIONSW) \
  41     X("help", 0, HELPSW) \
  42
  43 #define X(sw, minchars, id) id,
  44 DEFINE_SWITCH_ENUM(FMTTEST);
  45 #undef X
  46
  47 #define X(sw, minchars, id) { sw, minchars, id },
  48 DEFINE_SWITCH_ARRAY(FMTTEST, switches);
  49 #undef X
  50
  51 /*
  52  * An array containing labels used for branch instructions
  53  */
  54
  55 static struct format **lvec = NULL;
  56 static int lused = 0;
  57 static int lallocated = 0;
  58
  59 enum mode_t { MESSAGE, ADDRESS, DATE, RAW };
  60 #define DEFADDRFORMAT "%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>"
  61 #define DEFDATEFORMAT "%<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>"
  62
  63 /*
  64  * Context structure used by the tracing routines
  65  */
  66
  67 struct trace_context {
  68     int num;
  69     char *str;
  70     char *outbuf;
  71 };
  72
  73 /*
  74  * static prototypes
  75  */
  76 static void fmt_dump (char *, struct format *);
  77 static void dumpone(struct format *);
  78 static void initlabels(struct format *);
  79 static int findlabel(struct format *);
  80 static void assignlabel(struct format *);
  81 static char *f_typestr(int);
  82 static char *c_typestr(int);
  83 static char *c_flagsstr(int);
  84 static void litputs(const char *);
  85 static void litputc(char);
  86 static void process_addresses(struct format *, struct msgs_array *,
  87                               charstring_t, int, int *,
  88                               struct fmt_callbacks *);
  89 static void process_raw(struct format *, struct msgs_array *, charstring_t,
  90                         int, int *, struct fmt_callbacks *);
  91 static void process_messages(struct format *, struct msgs_array *,
  92                              struct msgs_array *, charstring_t, char *, int,
  93                              int, int *, struct fmt_callbacks *);
  94 static void process_single_file(FILE *, struct msgs_array *, int *, int,
  95                                 struct format *, charstring_t, int,
  96                                 struct fmt_callbacks *);
  97 static void test_trace(void *, struct format *, int, char *, const char *);
  98 static char *test_formataddr(char *, char *);
  99 static char *test_concataddr(char *, char *);
 100 static int insert(struct mailname *);
 101 static void mlistfree(void);
 102
 103 static int nodupcheck = 0;      /* If set, no check for duplicates */
 104 static int ccme = 0;            /* Should I cc myself? */
 105 static struct mailname mq;      /* Mail addresses to check for duplicates */
 106 static char *dummy = "dummy";
 107
 108 int
 109 main (int argc, char **argv)
 110 {
 111     char *cp, *form = NULL, *format = NULL, *defformat = FORMAT, *folder = NULL;
 112     char buf[BUFSIZ], *nfs, **argp, **arguments;
 113     charstring_t buffer;
 114     struct format *fmt;
 115     struct comp *cptr;
 116     struct msgs_array msgs = { 0, 0, NULL }, compargs = { 0, 0, NULL};
 117     int dump = 0, i;
 118     int outputsize = 0, dupaddrs = 1, trace = 0, files = 0;
 119     int colwidth = -1, msgnum = -1, msgcur = -1, msgsize = -1, msgunseen = -1;
 120     enum mode_t mode = MESSAGE;
 121     int dat[5];
 122     struct fmt_callbacks cb, *cbp = NULL;
 123
 124     if (nmh_init(argv[0], 1)) { return 1; }
 125
 126     arguments = getarguments (invo_name, argc, argv, 1);
 127     argp = arguments;
 128
 129     while ((cp = *argp++)) {
 130         if (*cp == '-') {
 131             /*
 132              * A -- means that we have a component name (like pick);
 133              * save the component name and the next argument for the text.
 134              */
 135             if (*++cp == '-') {
 136                 if (*++cp == '\0')
 137                     adios(NULL, "missing component name after --");
 138                 app_msgarg(&compargs, cp);
 139                 /* Grab next argument for component text */
 140                 if (!(cp = *argp++))
 141                     adios(NULL, "missing argument to %s", argp[-2]);
 142                 app_msgarg(&compargs, cp);
 143                 continue;
 144             }
 145             switch (smatch (cp, switches)) {
 146                 case AMBIGSW:
 147                     ambigsw (cp, switches);
 148                     done (1);
 149                 case UNKWNSW:
 150                     adios (NULL, "-%s unknown", cp);
 151
 152                 case HELPSW:
 153                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
 154                     print_help (buf, switches, 1);
 155                     done (0);
 156                 case VERSIONSW:
 157                     print_version(invo_name);
 158                     done (0);
 159                 case OTHERSW:
 160                     adios(NULL, "internal argument error!");
 161                     continue;
 162
 163                 case OUTSIZESW:
 164                     if (!(cp = *argp++) || *cp == '-')
 165                         adios(NULL, "missing argument to %s", argp[-2]);
 166                     if (strcmp(cp, "max") == 0)
 167                         outputsize = INT_MAX;
 168                     else if (strcmp(cp, "width") == 0)
 169                         outputsize = sc_width();
 170                     else
 171                         outputsize = atoi(cp);
 172                     continue;
 173
 174                 case FORMSW:
 175                     if (!(form = *argp++) || *form == '-')
 176                         adios (NULL, "missing argument to %s", argp[-2]);
 177                     format = NULL;
 178                     continue;
 179                 case FMTSW:
 180                     if (!(format = *argp++) || *format == '-')
 181                         adios (NULL, "missing argument to %s", argp[-2]);
 182                     form = NULL;
 183                     continue;
 184
 185                 case TRACESW:
 186                     trace++;
 187                     continue;
 188                 case NTRACESW:
 189                     trace = 0;
 190                     continue;
 191
 192                 case ADDRSW:
 193                     mode = ADDRESS;
 194                     defformat = DEFADDRFORMAT;
 195                     continue;
 196                 case RAWSW:
 197                     mode = RAW;
 198                     continue;
 199                 case MESSAGESW:
 200                     mode = MESSAGE;
 201                     defformat = FORMAT;
 202                     dupaddrs = 0;
 203                     continue;
 204                 case DATESW:
 205                     mode = DATE;
 206                     defformat = DEFDATEFORMAT;
 207                     continue;
 208
 209                 case FILESW:
 210                     files++;
 211                     continue;
 212                 case NFILESW:
 213                     files = 0;
 214                     continue;
 215
 216                 case DUPADDRSW:
 217                     dupaddrs++;
 218                     continue;
 219                 case NDUPADDRSW:
 220                     dupaddrs = 0;
 221                     continue;
 222
 223                 case CCMESW:
 224                     ccme++;
 225                     continue;
 226                 case NCCMESW:
 227                     ccme = 0;
 228                     continue;
 229
 230                 case WIDTHSW:
 231                     if (!(cp = *argp++) || *cp == '-')
 232                         adios(NULL, "missing argument to %s", argp[-2]);
 233                     colwidth = atoi(cp);
 234                     continue;
 235                 case MSGNUMSW:
 236                     if (!(cp = *argp++) || *cp == '-')
 237                         adios(NULL, "missing argument to %s", argp[-2]);
 238                     msgnum = atoi(cp);
 239                     continue;
 240                 case MSGCURSW:
 241                     if (!(cp = *argp++) || *cp == '-')
 242                         adios(NULL, "missing argument to %s", argp[-2]);
 243                     msgcur = atoi(cp);
 244                     continue;
 245                 case MSGSIZESW:
 246                     if (!(cp = *argp++) || *cp == '-')
 247                         adios(NULL, "missing argument to %s", argp[-2]);
 248                     msgsize = atoi(cp);
 249                     continue;
 250                 case UNSEENSW:
 251                     if (!(cp = *argp++) || *cp == '-')
 252                         adios(NULL, "missing argument to %s", argp[-2]);
 253                     msgunseen = atoi(cp);
 254                     continue;
 255
 256                 case DUMPSW:
 257                     dump++;
 258                     continue;
 259                 case NDUMPSW:
 260                     dump = 0;
 261                     continue;
 262
 263             }
 264         }
 265
 266         /*
 267          * Only interpret as a folder if we're in message mode
 268          */
 269
 270         if (mode == MESSAGE && !files && (*cp == '+' || *cp == '@')) {
 271             if (folder)
 272                 adios (NULL, "only one folder at a time!");
 273             folder = pluspath (cp);
 274         } else
 275             app_msgarg(&msgs, cp);
 276     }
 277
 278     /*
 279      * Here's our weird heuristic:
 280      *
 281      * - We allow -dump without any other arguments.
 282      * - If you've given any component arguments, we don't require any
 283      *   other arguments.
 284      * - The arguments are interpreted as folders/messages _if_ we're in
 285      *   message mode, otherwise pass as strings in the text component.
 286      */
 287
 288    if (!dump && compargs.size == 0 && msgs.size == 0) {
 289         adios(NULL, "usage: [switches] [+folder] msgs | strings...");
 290    }
 291
 292    /*
 293     * If you're picking "raw" as a mode, then you have to select
 294     * a format.
 295     */
 296
 297    if (mode == RAW && form == NULL && format == NULL) {
 298         adios (NULL, "You must specify a format with -form or -format when "
 299                "using -raw");
 300    }
 301
 302     /*
 303      * Get new format string.  Must be before chdir().
 304      */
 305     nfs = new_fs (form, format, defformat);
 306     (void) fmt_compile(nfs, &fmt, 1);
 307
 308     if (dump || trace) {
 309         initlabels(fmt);
 310         if (dump) {
 311             fmt_dump(nfs, fmt);
 312             if (compargs.size == 0 && msgs.size == 0)
 313                 done(0);
 314         }
 315     }
 316
 317     buffer = charstring_create(BUFSIZ);
 318
 319     if (outputsize == 0) {
 320         if (mode == MESSAGE)
 321             outputsize = sc_width();
 322         else
 323             outputsize = INT_MAX;
 324     }
 325
 326     dat[0] = msgnum;
 327     dat[1] = msgcur;
 328     dat[2] = msgsize;
 329     dat[3] = colwidth == -1 ? outputsize : colwidth;
 330     dat[4] = msgunseen;
 331
 332     /*
 333      * If we want to provide our own formataddr, concactaddr, or tracing
 334      * callback, do that now.  Also, prime ismymbox if we use it.
 335      */
 336
 337     if (dupaddrs == 0 || trace) {
 338         ZERO(&cb);
 339         cbp = &cb;
 340
 341         if (dupaddrs == 0) {
 342             cb.formataddr = test_formataddr;
 343             cb.concataddr = test_concataddr;
 344             if (!ccme)
 345                 ismymbox(NULL);
 346         }
 347
 348         if (trace) {
 349             struct trace_context *ctx;
 350
 351             NEW(ctx);
 352             ctx->num = -1;
 353             ctx->str = dummy;
 354             ctx->outbuf = mh_xstrdup("");
 355
 356             cb.trace_func = test_trace;
 357             cb.trace_context = ctx;
 358         }
 359     }
 360
 361     if (mode == MESSAGE) {
 362         process_messages(fmt, &compargs, &msgs, buffer, folder, outputsize,
 363                          files, dat, cbp);
 364     } else {
 365         if (compargs.size) {
 366             for (i = 0; i < compargs.size; i += 2) {
 367                 cptr = fmt_findcomp(compargs.msgs[i]);
 368                 if (cptr)
 369                     cptr->c_text = getcpy(compargs.msgs[i + 1]);
 370             }
 371         }
 372
 373         if (mode == ADDRESS) {
 374             process_addresses(fmt, &msgs, buffer, outputsize, dat, cbp);
 375         } else /* Fall-through for RAW or DATE */
 376             process_raw(fmt, &msgs, buffer, outputsize, dat, cbp);
 377     }
 378
 379     charstring_free(buffer);
 380     fmt_free(fmt, 1);
 381
 382     done(0);
 383     return 1;
 384 }
 385
 386 /*
 387  * Process each address with fmt_scan().
 388  */
 389
 390 struct pqpair {
 391     char *pq_text;
 392     char *pq_error;
 393     struct pqpair *pq_next;
 394 };
 395
 396 static void
 397 process_addresses(struct format *fmt, struct msgs_array *addrs,
 398                   charstring_t buffer, int outwidth, int *dat,
 399                   struct fmt_callbacks *cb)
 400 {
 401     int i;
 402     char *cp, error[BUFSIZ];
 403     struct mailname *mp;
 404     struct pqpair *p, *q;
 405     struct pqpair pq;
 406     struct comp *c;
 407
 408     if (dat[0] == -1)
 409         dat[0] = 0;
 410     if (dat[1] == -1)
 411         dat[1] = 0;
 412     if (dat[2] == -1)
 413         dat[2] = 0;
 414     if (dat[4] == -1)
 415         dat[4] = 0;
 416
 417     for (i = 0; i < addrs->size; i++) {
 418         (q = &pq)->pq_next = NULL;
 419         while ((cp = getname(addrs->msgs[i]))) {
 420             NEW0(p);
 421             if ((mp = getm(cp, NULL, 0, error, sizeof(error))) == NULL) {
 422                 p->pq_text = mh_xstrdup(cp);
 423                 p->pq_error = mh_xstrdup(error);
 424             } else {
 425                 p->pq_text = getcpy(mp->m_text);
 426                 mnfree(mp);
 427             }
 428             q = (q->pq_next = p);
 429         }
 430
 431         for (p = pq.pq_next; p; p = q) {
 432             c = fmt_findcomp("text");
 433             if (c) {
 434                 mh_xfree(c->c_text);
 435                 c->c_text = p->pq_text;
 436                 p->pq_text = NULL;
 437             }
 438             c = fmt_findcomp("error");
 439             if (c) {
 440                 mh_xfree(c->c_text);
 441                 c->c_text = p->pq_error;
 442                 p->pq_error = NULL;
 443             }
 444
 445             fmt_scan(fmt, buffer, outwidth, dat, cb);
 446             fputs(charstring_buffer(buffer), stdout);
 447             mlistfree();
 448
 449             mh_xfree(p->pq_text);
 450             mh_xfree(p->pq_error);
 451             q = p->pq_next;
 452             free(p);
 453         }
 454     }
 455 }
 456
 457 /*
 458  * Process messages and run them through the format engine.  A lot taken
 459  * from scan.c.
 460  */
 461
 462 static void
 463 process_messages(struct format *fmt, struct msgs_array *comps,
 464                  struct msgs_array *msgs, charstring_t buffer, char *folder,
 465                  int outwidth, int files, int *dat,
 466                  struct fmt_callbacks *cb)
 467 {
 468     int i, msgnum, msgsize = dat[2], num = dat[0], cur = dat[1];
 469     int num_unseen_seq = 0;
 470     ivector_t seqnum = ivector_create (0);
 471     char *maildir, *cp;
 472     struct msgs *mp;
 473     FILE *in;
 474
 475     /*
 476      * If 'files' is set, short-circuit everything else and just process
 477      * everything now.
 478      */
 479
 480     if (files) {
 481         for (i = 0; i < msgs->size; i++) {
 482             if ((in = fopen(cp = msgs->msgs[i], "r")) == NULL) {
 483                 admonish(cp, "unable to open file");
 484                 continue;
 485             }
 486             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 487                                 outwidth, cb);
 488         }
 489
 490         return;
 491     }
 492
 493     if (! folder)
 494         folder = getfolder(1);
 495
 496     maildir = m_maildir(folder);
 497
 498     if (chdir(maildir) < 0)
 499         adios(maildir, "unable to change directory to");
 500
 501     if (!(mp = folder_read(folder, 1)))
 502         adios(NULL, "unable to read folder %s", folder);
 503
 504     if (mp->nummsg == 0)
 505         adios(NULL, "no messages in %s", folder);
 506
 507     for (i = 0; i < msgs->size; i++)
 508         if (!m_convert(mp, msgs->msgs[i]))
 509             done(1);
 510     seq_setprev(mp);                    /* set the Previous-Sequence */
 511
 512     context_replace(pfolder, folder);   /* update current folder */
 513     seq_save(mp);                       /* synchronize message sequences */
 514     context_save();                     /* save the context file */
 515
 516     /*
 517      * We want to set the unseen flag if requested, so we have to check
 518      * the unseen sequence as well.
 519      */
 520
 521     if (dat[4] == -1) {
 522         if ((cp = context_find(usequence)) && *cp) {
 523             char **ap, *dp;
 524
 525             dp = mh_xstrdup(cp);
 526             ap = brkstring(dp, " ", "\n");
 527             for (i = 0; ap && *ap; i++, ap++)
 528                 ivector_push_back (seqnum, seq_getnum(mp, *ap));
 529
 530             num_unseen_seq = i;
 531             mh_xfree(dp);
 532         }
 533     }
 534
 535     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 536         if (is_selected(mp, msgnum)) {
 537             if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 538                 admonish(cp, "unable to open message");
 539                 continue;
 540             }
 541
 542             fmt_freecomptext();
 543
 544             if (num == -1)
 545                 dat[0] = msgnum;
 546
 547             if (cur == -1)
 548                 dat[1] = msgnum == mp->curmsg;
 549
 550             /*
 551              * Check to see if this is in the unseen sequence
 552              */
 553
 554             dat[4] = 0;
 555             for (i = 0; i < num_unseen_seq; i++) {
 556                 if (in_sequence(mp, ivector_at (seqnum, i), msgnum)) {
 557                     dat[4] = 1;
 558                     break;
 559                 }
 560             }
 561
 562             /*
 563              * Read in the message and process the components
 564              */
 565
 566             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 567                                 outwidth, cb);
 568         }
 569     }
 570
 571     ivector_free (seqnum);
 572     folder_free(mp);
 573 }
 574
 575 /*
 576  * Process a single file in message mode
 577  */
 578
 579 static void
 580 process_single_file(FILE *in, struct msgs_array *comps, int *dat, int msgsize,
 581                     struct format *fmt, charstring_t buffer, int outwidth,
 582                     struct fmt_callbacks *cb)
 583 {
 584     int i, state;
 585     char name[NAMESZ], rbuf[NMH_BUFSIZ];
 586     m_getfld_state_t gstate;
 587     struct comp *c;
 588     int bufsz;
 589
 590     /*
 591      * Get our size if we didn't include one
 592      */
 593
 594     if (msgsize == -1) {
 595         struct stat st;
 596
 597         if (fstat(fileno(in), &st) < 0)
 598             dat[2] = 0;
 599         else
 600             dat[2] = st.st_size;
 601     }
 602
 603     /*
 604      * Initialize everything else
 605      */
 606
 607     if (dat[0] == -1)
 608         dat[0] = 0;
 609     if (dat[1] == -1)
 610         dat[1] = 0;
 611     if (dat[4] == -1)
 612         dat[4] = 0;
 613
 614     /*
 615      * Read in the message and process the components
 616      */
 617
 618     gstate = m_getfld_state_init(in);
 619     for (;;) {
 620         bufsz = sizeof(rbuf);
 621         state = m_getfld2(&gstate, name, rbuf, &bufsz);
 622         switch (state) {
 623         case FLD:
 624         case FLDPLUS:
 625             i = fmt_addcomptext(name, rbuf);
 626             if (i != -1) {
 627                 while (state == FLDPLUS) {
 628                     bufsz = sizeof(rbuf);
 629                     state = m_getfld2(&gstate, name, rbuf, &bufsz);
 630                     fmt_appendcomp(i, name, rbuf);
 631                 }
 632             }
 633
 634             while (state == FLDPLUS) {
 635                 bufsz = sizeof(rbuf);
 636                 state = m_getfld2(&gstate, name, rbuf, &bufsz);
 637             }
 638             break;
 639
 640         case BODY:
 641             if (fmt_findcomp("body")) {
 642                 if ((i = strlen(rbuf)) < outwidth) {
 643                     bufsz = min (outwidth, (int) sizeof rbuf - i);
 644                     m_getfld2(&gstate, name, rbuf + i, &bufsz);
 645                 }
 646
 647                 fmt_addcomptext("body", rbuf);
 648             }
 649             goto finished;
 650
 651         default:
 652             goto finished;
 653         }
 654     }
 655 finished:
 656     fclose(in);
 657     m_getfld_state_destroy(&gstate);
 658
 659     /*
 660      * Do this now to override any components in the original message
 661      */
 662     if (comps->size) {
 663         for (i = 0; i < comps->size; i += 2) {
 664             c = fmt_findcomp(comps->msgs[i]);
 665             if (c) {
 666                 mh_xfree(c->c_text);
 667                 c->c_text = getcpy(comps->msgs[i + 1]);
 668             }
 669         }
 670     }
 671     fmt_scan(fmt, buffer, outwidth, dat, cb);
 672     fputs(charstring_buffer (buffer), stdout);
 673     mlistfree();
 674 }
 675
 676 /*
 677  * Run text through the format engine with no special processing
 678  */
 679
 680 static void
 681 process_raw(struct format *fmt, struct msgs_array *text, charstring_t buffer,
 682             int outwidth, int *dat, struct fmt_callbacks *cb)
 683 {
 684     int i;
 685     struct comp *c;
 686
 687     if (dat[0] == -1)
 688         dat[0] = 0;
 689     if (dat[1] == -1)
 690         dat[1] = 0;
 691     if (dat[2] == -1)
 692         dat[2] = 0;
 693     if (dat[4] == -1)
 694         dat[4] = 0;
 695
 696     c = fmt_findcomp("text");
 697
 698     for (i = 0; i < text->size; i++) {
 699         if (c != NULL) {
 700             mh_xfree(c->c_text);
 701             c->c_text = getcpy(text->msgs[i]);
 702         }
 703
 704         fmt_scan(fmt, buffer, outwidth, dat, cb);
 705         fputs(charstring_buffer (buffer), stdout);
 706         mlistfree();
 707     }
 708 }
 709
 710 /*
 711  * Our basic tracing support callback.
 712  *
 713  * Print out each instruction as it's executed, including the values of
 714  * the num and str registers if they've changed.
 715  */
 716
 717 static void
 718 test_trace(void *context, struct format *fmt, int num, char *str,
 719            const char *outbuf)
 720 {
 721     struct trace_context *ctx = (struct trace_context *) context;
 722     int changed = 0;
 723
 724     dumpone(fmt);
 725
 726     if (num != ctx->num) {
 727         printf("num=%d", num);
 728         ctx->num = num;
 729         changed++;
 730     }
 731
 732     if (str != ctx->str) {
 733         if (changed++)
 734             putchar(' ');
 735         printf("str=");
 736         litputs(str);
 737         ctx->str = str;
 738     }
 739
 740     if (changed)
 741         putchar('\n');
 742
 743     if (strcmp(outbuf, ctx->outbuf) != 0) {
 744         printf("outbuf=");
 745         litputs(outbuf);
 746         putchar('\n');
 747         free(ctx->outbuf);
 748         ctx->outbuf = mh_xstrdup(outbuf);
 749     }
 750 }
 751
 752 static void
 753 fmt_dump (char *nfs, struct format *fmth)
 754 {
 755         struct format *fmt;
 756
 757         printf("Instruction dump of format string: \n%s\n", nfs);
 758
 759         /* Dump them out! */
 760         for (fmt = fmth; fmt; ++fmt) {
 761                 dumpone(fmt);
 762                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 763                         break;
 764         }
 765 }
 766
 767 static void
 768 dumpone(struct format *fmt)
 769 {
 770         int i;
 771
 772         if ((i = findlabel(fmt)) >= 0)
 773                 printf("L%d:", i);
 774         putchar('\t');
 775
 776         fputs(f_typestr((int)fmt->f_type), stdout);
 777
 778         switch (fmt->f_type) {
 779
 780         case FT_COMP:
 781         case FT_LS_COMP:
 782         case FT_LV_COMPFLAG:
 783         case FT_LV_COMP:
 784                 printf(", comp ");
 785                 litputs(fmt->f_comp->c_name);
 786                 if (fmt->f_comp->c_type)
 787                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 788                 if (fmt->f_comp->c_flags)
 789                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 790                 break;
 791
 792         case FT_LV_SEC:
 793         case FT_LV_MIN:
 794         case FT_LV_HOUR:
 795         case FT_LV_MDAY:
 796         case FT_LV_MON:
 797         case FT_LS_MONTH:
 798         case FT_LS_LMONTH:
 799         case FT_LS_ZONE:
 800         case FT_LV_YEAR:
 801         case FT_LV_WDAY:
 802         case FT_LS_DAY:
 803         case FT_LS_WEEKDAY:
 804         case FT_LV_YDAY:
 805         case FT_LV_ZONE:
 806         case FT_LV_CLOCK:
 807         case FT_LV_RCLOCK:
 808         case FT_LV_DAYF:
 809         case FT_LV_ZONEF:
 810         case FT_LV_DST:
 811         case FT_LS_822DATE:
 812         case FT_LS_PRETTY:
 813         case FT_LOCALDATE:
 814         case FT_GMTDATE:
 815         case FT_PARSEDATE:
 816                 printf(", c_name ");
 817                 litputs(fmt->f_comp->c_name);
 818                 if (fmt->f_comp->c_type)
 819                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 820                 if (fmt->f_comp->c_flags)
 821                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 822                 break;
 823
 824         case FT_LS_ADDR:
 825         case FT_LS_PERS:
 826         case FT_LS_MBOX:
 827         case FT_LS_HOST:
 828         case FT_LS_PATH:
 829         case FT_LS_GNAME:
 830         case FT_LS_NOTE:
 831         case FT_LS_822ADDR:
 832         case FT_LV_HOSTTYPE:
 833         case FT_LV_INGRPF:
 834         case FT_LV_NOHOSTF:
 835         case FT_LS_FRIENDLY:
 836         case FT_PARSEADDR:
 837         case FT_MYMBOX:
 838         case FT_GETMYMBOX:
 839         case FT_GETMYADDR:
 840                 printf(", c_name ");
 841                 litputs(fmt->f_comp->c_name);
 842                 if (fmt->f_comp->c_type)
 843                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 844                 if (fmt->f_comp->c_flags)
 845                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 846                 break;
 847
 848         case FT_COMPF:
 849                 printf(", width %d, fill '", fmt->f_width);
 850                 litputc(fmt->f_fill);
 851                 printf("' name ");
 852                 litputs(fmt->f_comp->c_name);
 853                 if (fmt->f_comp->c_type)
 854                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 855                 if (fmt->f_comp->c_flags)
 856                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 857                 break;
 858
 859         case FT_STRF:
 860         case FT_NUMF:
 861                 printf(", width %d, fill '", fmt->f_width);
 862                 litputc(fmt->f_fill);
 863                 putchar('\'');
 864                 break;
 865
 866         case FT_LIT:
 867                 putchar(' ');
 868                 litputs(fmt->f_text);
 869                 break;
 870
 871         case FT_LITF:
 872                 printf(", width %d, fill '", fmt->f_width);
 873                 litputc(fmt->f_fill);
 874                 printf("' ");
 875                 litputs(fmt->f_text);
 876                 break;
 877
 878         case FT_CHAR:
 879                 putchar(' ');
 880                 putchar('\'');
 881                 litputc(fmt->f_char);
 882                 putchar('\'');
 883                 break;
 884
 885
 886         case FT_IF_S:
 887         case FT_IF_S_NULL:
 888         case FT_IF_MATCH:
 889         case FT_IF_AMATCH:
 890                 printf(" continue else goto");
 891                 /* FALLTHRU */
 892         case FT_GOTO:
 893                 i = findlabel(fmt + fmt->f_skip);
 894                 printf(" L%d", i);
 895                 break;
 896
 897         case FT_IF_V_EQ:
 898         case FT_IF_V_NE:
 899         case FT_IF_V_GT:
 900                 i = findlabel(fmt + fmt->f_skip);
 901                 printf(" %d continue else goto L%d", fmt->f_value, i);
 902                 break;
 903
 904         case FT_V_EQ:
 905         case FT_V_NE:
 906         case FT_V_GT:
 907         case FT_LV_LIT:
 908         case FT_LV_PLUS_L:
 909         case FT_LV_MINUS_L:
 910         case FT_LV_MULTIPLY_L:
 911         case FT_LV_DIVIDE_L:
 912         case FT_LV_MODULO_L:
 913                 printf(" value %d", fmt->f_value);
 914                 break;
 915
 916         case FT_LS_LIT:
 917                 printf(" str ");
 918                 litputs(fmt->f_text);
 919                 break;
 920
 921         case FT_LS_GETENV:
 922                 printf(" getenv ");
 923                 litputs(fmt->f_text);
 924                 break;
 925
 926         case FT_LS_DECODECOMP:
 927                 printf(", comp ");
 928                 litputs(fmt->f_comp->c_name);
 929                 break;
 930
 931         case FT_LS_DECODE:
 932                 break;
 933
 934         case FT_LS_TRIM:
 935                 printf(", width %d", fmt->f_width);
 936                 break;
 937
 938         case FT_LV_DAT:
 939                 printf(", value dat[%d]", fmt->f_value);
 940                 break;
 941         }
 942         putchar('\n');
 943 }
 944
 945 /*
 946  * Iterate over all instructions and assign labels to the targets of
 947  * branch statements
 948  */
 949
 950 static void
 951 initlabels(struct format *fmth)
 952 {
 953         struct format *fmt, *addr;
 954         int i;
 955
 956         /* Assign labels */
 957         for (fmt = fmth; fmt; ++fmt) {
 958                 i = fmt->f_type;
 959                 if (i == FT_IF_S ||
 960                     i == FT_IF_S_NULL ||
 961                     i == FT_IF_V_EQ ||
 962                     i == FT_IF_V_NE ||
 963                     i == FT_IF_V_GT ||
 964                     i == FT_IF_MATCH ||
 965                     i == FT_IF_AMATCH ||
 966                     i == FT_GOTO) {
 967                         addr = fmt + fmt->f_skip;
 968                         if (findlabel(addr) < 0)
 969                                 assignlabel(addr);
 970                 }
 971                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 972                         break;
 973         }
 974 }
 975
 976
 977 static int
 978 findlabel(struct format *addr)
 979 {
 980         int i;
 981
 982         for (i = 0; i < lused; ++i)
 983                 if (addr == lvec[i])
 984                         return(i);
 985         return(-1);
 986 }
 987
 988 static void
 989 assignlabel(struct format *addr)
 990 {
 991         if (lused >= lallocated) {
 992                 lallocated += 64;
 993                 lvec = (struct format **)
 994                         mh_xrealloc(lvec, sizeof(struct format *) * lallocated);
 995         }
 996
 997         lvec[lused++] = addr;
 998 }
 999
1000 static char *
1001 f_typestr(int t)
1002 {
1003         static char buf[32];
1004
1005         switch (t) {
1006         case FT_COMP: return "COMP";
1007         case FT_COMPF: return "COMPF";
1008         case FT_LIT: return "LIT";
1009         case FT_LITF: return "LITF";
1010         case FT_CHAR: return "CHAR";
1011         case FT_NUM: return "NUM";
1012         case FT_NUMF: return "NUMF";
1013         case FT_STR: return "STR";
1014         case FT_STRF: return "STRF";
1015         case FT_STRFW: return "STRFW";
1016         case FT_STRLIT: return "STRLIT";
1017         case FT_STRLITZ: return "STRLITZ";
1018         case FT_PUTADDR: return "PUTADDR";
1019         case FT_LS_COMP: return "LS_COMP";
1020         case FT_LS_LIT: return "LS_LIT";
1021         case FT_LS_GETENV: return "LS_GETENV";
1022         case FT_LS_CFIND: return "LS_CFIND";
1023         case FT_LS_DECODECOMP: return "LS_DECODECOMP";
1024         case FT_LS_DECODE: return "LS_DECODE";
1025         case FT_LS_TRIM: return "LS_TRIM";
1026         case FT_LV_COMP: return "LV_COMP";
1027         case FT_LV_COMPFLAG: return "LV_COMPFLAG";
1028         case FT_LV_LIT: return "LV_LIT";
1029         case FT_LV_DAT: return "LV_DAT";
1030         case FT_LV_STRLEN: return "LV_STRLEN";
1031         case FT_LV_PLUS_L: return "LV_PLUS_L";
1032         case FT_LV_MINUS_L: return "LV_MINUS_L";
1033         case FT_LV_MULTIPLY_L: return "LV_MULTIPLY_L";
1034         case FT_LV_DIVIDE_L: return "LV_DIVIDE_L";
1035         case FT_LV_MODULO_L: return "LV_MODULO_L";
1036         case FT_LV_CHAR_LEFT: return "LV_CHAR_LEFT";
1037         case FT_LS_MONTH: return "LS_MONTH";
1038         case FT_LS_LMONTH: return "LS_LMONTH";
1039         case FT_LS_ZONE: return "LS_ZONE";
1040         case FT_LS_DAY: return "LS_DAY";
1041         case FT_LS_WEEKDAY: return "LS_WEEKDAY";
1042         case FT_LS_822DATE: return "LS_822DATE";
1043         case FT_LS_PRETTY: return "LS_PRETTY";
1044         case FT_LS_KILO: return "LS_KILO";
1045         case FT_LS_KIBI: return "LS_KIBI";
1046         case FT_LV_SEC: return "LV_SEC";
1047         case FT_LV_MIN: return "LV_MIN";
1048         case FT_LV_HOUR: return "LV_HOUR";
1049         case FT_LV_MDAY: return "LV_MDAY";
1050         case FT_LV_MON: return "LV_MON";
1051         case FT_LV_YEAR: return "LV_YEAR";
1052         case FT_LV_YDAY: return "LV_YDAY";
1053         case FT_LV_WDAY: return "LV_WDAY";
1054         case FT_LV_ZONE: return "LV_ZONE";
1055         case FT_LV_CLOCK: return "LV_CLOCK";
1056         case FT_LV_RCLOCK: return "LV_RCLOCK";
1057         case FT_LV_DAYF: return "LV_DAYF";
1058         case FT_LV_DST: return "LV_DST";
1059         case FT_LV_ZONEF: return "LV_ZONEF";
1060         case FT_LS_PERS: return "LS_PERS";
1061         case FT_LS_MBOX: return "LS_MBOX";
1062         case FT_LS_HOST: return "LS_HOST";
1063         case FT_LS_PATH: return "LS_PATH";
1064         case FT_LS_GNAME: return "LS_GNAME";
1065         case FT_LS_NOTE: return "LS_NOTE";
1066         case FT_LS_ADDR: return "LS_ADDR";
1067         case FT_LS_822ADDR: return "LS_822ADDR";
1068         case FT_LS_FRIENDLY: return "LS_FRIENDLY";
1069         case FT_LV_HOSTTYPE: return "LV_HOSTTYPE";
1070         case FT_LV_INGRPF: return "LV_INGRPF";
1071         case FT_LS_UNQUOTE: return "LS_UNQUOTE";
1072         case FT_LV_NOHOSTF: return "LV_NOHOSTF";
1073         case FT_LOCALDATE: return "LOCALDATE";
1074         case FT_GMTDATE: return "GMTDATE";
1075         case FT_PARSEDATE: return "PARSEDATE";
1076         case FT_PARSEADDR: return "PARSEADDR";
1077         case FT_FORMATADDR: return "FORMATADDR";
1078         case FT_CONCATADDR: return "CONCATADDR";
1079         case FT_MYMBOX: return "MYMBOX";
1080         case FT_GETMYMBOX: return "GETMYMBOX";
1081         case FT_GETMYADDR: return "GETMYADDR";
1082         case FT_SAVESTR: return "SAVESTR";
1083         case FT_DONE: return "DONE";
1084         case FT_PAUSE: return "PAUSE";
1085         case FT_NOP: return "NOP";
1086         case FT_GOTO: return "GOTO";
1087         case FT_IF_S_NULL: return "IF_S_NULL";
1088         case FT_IF_S: return "IF_S";
1089         case FT_IF_V_EQ: return "IF_V_EQ";
1090         case FT_IF_V_NE: return "IF_V_NE";
1091         case FT_IF_V_GT: return "IF_V_GT";
1092         case FT_IF_MATCH: return "IF_MATCH";
1093         case FT_IF_AMATCH: return "IF_AMATCH";
1094         case FT_S_NULL: return "S_NULL";
1095         case FT_S_NONNULL: return "S_NONNULL";
1096         case FT_V_EQ: return "V_EQ";
1097         case FT_V_NE: return "V_NE";
1098         case FT_V_GT: return "V_GT";
1099         case FT_V_MATCH: return "V_MATCH";
1100         case FT_V_AMATCH: return "V_AMATCH";
1101         default:
1102                 snprintf(buf, sizeof(buf), "/* ??? #%d */", t);
1103                 return(buf);
1104         }
1105 }
1106
1107 static char *
1108 c_typestr(int t)
1109 {
1110         static char buf[64];
1111
1112         snprintb(buf, sizeof(buf), t, CT_BITS);
1113         return(buf);
1114 }
1115
1116 static char *
1117 c_flagsstr(int t)
1118 {
1119         static char buf[64];
1120
1121         snprintb(buf, sizeof(buf), t, CF_BITS);
1122         return(buf);
1123 }
1124
1125 static void
1126 litputs(const char *s)
1127 {
1128         if (s) {
1129                 putchar('"');
1130                 while (*s)
1131                         litputc(*s++);
1132                 putchar('"');
1133         } else
1134                 fputs("<nil>", stdout);
1135 }
1136
1137 static void
1138 litputc(char c)
1139 {
1140         if (c & ~ 0177) {
1141                 printf("\\x%02x", (unsigned char) c);
1142         } else if (c < 0x20 || c == 0177) {
1143                 if (c == '\b') {
1144                         putchar('\\');
1145                         putchar('b');
1146                 } else if (c == '\f') {
1147                         putchar('\\');
1148                         putchar('f');
1149                 } else if (c == '\n') {
1150                         putchar('\\');
1151                         putchar('n');
1152                 } else if (c == '\r') {
1153                         putchar('\\');
1154                         putchar('r');
1155                 } else if (c == '\t') {
1156                         putchar('\\');
1157                         putchar('t');
1158                 } else {
1159                         putchar('^');
1160                         putchar(c ^ 0x40);      /* DEL to ?, others to alpha */
1161                 }
1162         } else
1163                 putchar(c);
1164 }
1165
1166 /*
1167  * Routines/code to support the duplicate address suppression code, adapted
1168  * from replsbr.c
1169  */
1170
1171 static char *buf;               /* our current working buffer */
1172 static char *bufend;            /* end of working buffer */
1173 static char *last_dst;          /* buf ptr at end of last call */
1174 static unsigned int bufsiz=0;   /* current size of buf */
1175
1176 #define BUFINCR 512             /* how much to expand buf when if fills */
1177
1178 #define CPY(s) { cp = (s); while ((*dst++ = *cp++)) ; --dst; }
1179
1180 /*
1181  * check if there's enough room in buf for str.
1182  * add more mem if needed
1183  */
1184 #define CHECKMEM(str) \
1185             if ((len = strlen (str)) >= bufend - dst) {\
1186                 int i = dst - buf;\
1187                 int n = last_dst - buf;\
1188                 bufsiz += ((dst + len - bufend) / BUFINCR + 1) * BUFINCR;\
1189                 buf = mh_xrealloc (buf, bufsiz);\
1190                 dst = buf + i;\
1191                 last_dst = buf + n;\
1192                 bufend = buf + bufsiz;\
1193             }
1194
1195
1196 /*
1197  * These are versions of similar routines from replsbr.c; the purpose is
1198  * to suppress duplicate addresses from being added to a list when building
1199  * up addresses for the %(formataddr) format function.  This is used by
1200  * repl to prevent duplicate addresses from being added to the "to" line.
1201  * See replsbr.c for more information.
1202  *
1203  * We can't use the functions in replsbr.c directly because they are slightly
1204  * different and depend on the rest of replsbr.c
1205  */
1206 static char *
1207 test_formataddr (char *orig, char *str)
1208 {
1209     int len;
1210     char error[BUFSIZ];
1211     int isgroup;
1212     char *dst;
1213     char *cp;
1214     char *sp;
1215     struct mailname *mp = NULL;
1216
1217     /* if we don't have a buffer yet, get one */
1218     if (bufsiz == 0) {
1219         buf = mh_xmalloc (BUFINCR);
1220         last_dst = buf;         /* XXX */
1221         bufsiz = BUFINCR - 6;  /* leave some slop */
1222         bufend = buf + bufsiz;
1223     }
1224     /*
1225      * If "orig" points to our buffer we can just pick up where we
1226      * left off.  Otherwise we have to copy orig into our buffer.
1227      */
1228     if (orig == buf)
1229         dst = last_dst;
1230     else if (!orig || !*orig) {
1231         dst = buf;
1232         *dst = '\0';
1233     } else {
1234         dst = last_dst;         /* XXX */
1235         CHECKMEM (orig);
1236         CPY (orig);
1237     }
1238
1239     /* concatenate all the new addresses onto 'buf' */
1240     for (isgroup = 0; (cp = getname (str)); ) {
1241         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
1242             fprintf(stderr, "bad address \"%s\" -- %s\n", cp, error);
1243             continue;
1244         }
1245         if (isgroup && (mp->m_gname || !mp->m_ingrp)) {
1246             *dst++ = ';';
1247             isgroup = 0;
1248         }
1249         if (insert (mp)) {
1250             /* if we get here we're going to add an address */
1251             if (dst != buf) {
1252                 *dst++ = ',';
1253                 *dst++ = ' ';
1254             }
1255             if (mp->m_gname) {
1256                 CHECKMEM (mp->m_gname);
1257                 CPY (mp->m_gname);
1258                 isgroup++;
1259             }
1260             sp = adrformat (mp);
1261             CHECKMEM (sp);
1262             CPY (sp);
1263         }
1264     }
1265
1266     if (isgroup)
1267         *dst++ = ';';
1268
1269     *dst = '\0';
1270     last_dst = dst;
1271     return (buf);
1272 }
1273
1274
1275 /*
1276  * The companion to test_formataddr(); it behaves the same way, except doesn't
1277  * do duplicate address detection.
1278  */
1279 static char *
1280 test_concataddr(char *orig, char *str)
1281 {
1282     char *cp;
1283
1284     nodupcheck = 1;
1285     cp = test_formataddr(orig, str);
1286     nodupcheck = 0;
1287     return cp;
1288 }
1289
1290 static int
1291 insert (struct mailname *np)
1292 {
1293     struct mailname *mp;
1294
1295     if (nodupcheck)
1296         return 1;
1297
1298     if (np->m_mbox == NULL)
1299         return 0;
1300
1301     for (mp = &mq; mp->m_next; mp = mp->m_next) {
1302         if (!strcasecmp (FENDNULL(np->m_host),
1303                          FENDNULL(mp->m_next->m_host)) &&
1304             !strcasecmp (FENDNULL(np->m_mbox),
1305                          FENDNULL(mp->m_next->m_mbox)))
1306             return 0;
1307     }
1308     if (!ccme && ismymbox (np))
1309         return 0;
1310
1311     mp->m_next = np;
1312
1313     return 1;
1314 }
1315
1316 /*
1317  * Reset our duplicate address list
1318  */
1319
1320 void
1321 mlistfree(void)
1322 {
1323     struct mailname *mp, *mp2;
1324
1325     for (mp = mq.m_next; mp; mp = mp2) {
1326         mp2 = mp->m_next;
1327         mnfree(mp);
1328     }
1329 }