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 #include "sbr/terminal.h"
  16
  17 #define FMTTEST_SWITCHES \
  18     X("form formatfile", 0, FORMSW) \
  19     X("format string", 5, FMTSW) \
  20     X("address", 0, ADDRSW) \
  21     X("raw", 0, RAWSW) \
  22     X("date", 0, DATESW) \
  23     X("message", 0, MESSAGESW) \
  24     X("file", 0, FILESW) \
  25     X("nofile", 0, NFILESW) \
  26     X("-component-name component-text", 0, OTHERSW) \
  27     X("dupaddrs", 0, DUPADDRSW) \
  28     X("nodupaddrs", 0, NDUPADDRSW) \
  29     X("ccme", 0, CCMESW) \
  30     X("noccme", 0, NCCMESW) \
  31     X("outsize size-in-characters", 0, OUTSIZESW) \
  32     X("width column-width", 0, WIDTHSW) \
  33     X("msgnum number", 0, MSGNUMSW) \
  34     X("msgcur flag", 0, MSGCURSW) \
  35     X("msgsize size", 0, MSGSIZESW) \
  36     X("unseen flag", 0, UNSEENSW) \
  37     X("dump", 0, DUMPSW) \
  38     X("nodump", 0, NDUMPSW) \
  39     X("trace", 0, TRACESW) \
  40     X("notrace", 0, NTRACESW) \
  41     X("version", 0, VERSIONSW) \
  42     X("help", 0, HELPSW) \
  43
  44 #define X(sw, minchars, id) id,
  45 DEFINE_SWITCH_ENUM(FMTTEST);
  46 #undef X
  47
  48 #define X(sw, minchars, id) { sw, minchars, id },
  49 DEFINE_SWITCH_ARRAY(FMTTEST, switches);
  50 #undef X
  51
  52 /*
  53  * An array containing labels used for branch instructions
  54  */
  55
  56 static struct format **lvec = NULL;
  57 static int lused = 0;
  58 static int lallocated = 0;
  59
  60 enum mode_t { MESSAGE, ADDRESS, DATE, RAW };
  61 #define DEFADDRFORMAT "%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>"
  62 #define DEFDATEFORMAT "%<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>"
  63
  64 /*
  65  * Context structure used by the tracing routines
  66  */
  67
  68 struct trace_context {
  69     int num;
  70     char *str;
  71     char *outbuf;
  72 };
  73
  74 /*
  75  * static prototypes
  76  */
  77 static void fmt_dump (char *, struct format *);
  78 static void dumpone(struct format *);
  79 static void initlabels(struct format *);
  80 static int findlabel(struct format *);
  81 static void assignlabel(struct format *);
  82 static char *f_typestr(int);
  83 static char *c_typestr(int);
  84 static char *c_flagsstr(int);
  85 static void litputs(const char *);
  86 static void litputc(char);
  87 static void process_addresses(struct format *, struct msgs_array *,
  88                               charstring_t, int, int *,
  89                               struct fmt_callbacks *);
  90 static void process_raw(struct format *, struct msgs_array *, charstring_t,
  91                         int, int *, struct fmt_callbacks *);
  92 static void process_messages(struct format *, struct msgs_array *,
  93                              struct msgs_array *, charstring_t, char *, int,
  94                              int, int *, struct fmt_callbacks *);
  95 static void process_single_file(FILE *, struct msgs_array *, int *, int,
  96                                 struct format *, charstring_t, int,
  97                                 struct fmt_callbacks *);
  98 static void test_trace(void *, struct format *, int, char *, const char *);
  99 static char *test_formataddr(char *, char *);
 100 static char *test_concataddr(char *, char *);
 101 static int insert(struct mailname *);
 102 static void mlistfree(void);
 103
 104 static int nodupcheck = 0;      /* If set, no check for duplicates */
 105 static int ccme = 0;            /* Should I cc myself? */
 106 static struct mailname mq;      /* Mail addresses to check for duplicates */
 107 static char *dummy = "dummy";
 108
 109 int
 110 main (int argc, char **argv)
 111 {
 112     char *cp, *form = NULL, *format = NULL, *defformat = FORMAT, *folder = NULL;
 113     char buf[BUFSIZ], *nfs, **argp, **arguments;
 114     charstring_t buffer;
 115     struct format *fmt;
 116     struct comp *cptr;
 117     struct msgs_array msgs = { 0, 0, NULL }, compargs = { 0, 0, NULL};
 118     int dump = 0, i;
 119     int outputsize = 0, dupaddrs = 1, trace = 0, files = 0;
 120     int colwidth = -1, msgnum = -1, msgcur = -1, msgsize = -1, msgunseen = -1;
 121     enum mode_t mode = MESSAGE;
 122     int dat[5];
 123     struct fmt_callbacks cb, *cbp = NULL;
 124
 125     if (nmh_init(argv[0], 1)) { return 1; }
 126
 127     arguments = getarguments (invo_name, argc, argv, 1);
 128     argp = arguments;
 129
 130     while ((cp = *argp++)) {
 131         if (*cp == '-') {
 132             /*
 133              * A -- means that we have a component name (like pick);
 134              * save the component name and the next argument for the text.
 135              */
 136             if (*++cp == '-') {
 137                 if (*++cp == '\0')
 138                     adios(NULL, "missing component name after --");
 139                 app_msgarg(&compargs, cp);
 140                 /* Grab next argument for component text */
 141                 if (!(cp = *argp++))
 142                     adios(NULL, "missing argument to %s", argp[-2]);
 143                 app_msgarg(&compargs, cp);
 144                 continue;
 145             }
 146             switch (smatch (cp, switches)) {
 147                 case AMBIGSW:
 148                     ambigsw (cp, switches);
 149                     done (1);
 150                 case UNKWNSW:
 151                     adios (NULL, "-%s unknown", cp);
 152
 153                 case HELPSW:
 154                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
 155                     print_help (buf, switches, 1);
 156                     done (0);
 157                 case VERSIONSW:
 158                     print_version(invo_name);
 159                     done (0);
 160                 case OTHERSW:
 161                     adios(NULL, "internal argument error!");
 162                     continue;
 163
 164                 case OUTSIZESW:
 165                     if (!(cp = *argp++) || *cp == '-')
 166                         adios(NULL, "missing argument to %s", argp[-2]);
 167                     if (strcmp(cp, "max") == 0)
 168                         outputsize = INT_MAX;
 169                     else if (strcmp(cp, "width") == 0)
 170                         outputsize = sc_width();
 171                     else
 172                         outputsize = atoi(cp);
 173                     continue;
 174
 175                 case FORMSW:
 176                     if (!(form = *argp++) || *form == '-')
 177                         adios (NULL, "missing argument to %s", argp[-2]);
 178                     format = NULL;
 179                     continue;
 180                 case FMTSW:
 181                     if (!(format = *argp++) || *format == '-')
 182                         adios (NULL, "missing argument to %s", argp[-2]);
 183                     form = NULL;
 184                     continue;
 185
 186                 case TRACESW:
 187                     trace++;
 188                     continue;
 189                 case NTRACESW:
 190                     trace = 0;
 191                     continue;
 192
 193                 case ADDRSW:
 194                     mode = ADDRESS;
 195                     defformat = DEFADDRFORMAT;
 196                     continue;
 197                 case RAWSW:
 198                     mode = RAW;
 199                     continue;
 200                 case MESSAGESW:
 201                     mode = MESSAGE;
 202                     defformat = FORMAT;
 203                     dupaddrs = 0;
 204                     continue;
 205                 case DATESW:
 206                     mode = DATE;
 207                     defformat = DEFDATEFORMAT;
 208                     continue;
 209
 210                 case FILESW:
 211                     files++;
 212                     continue;
 213                 case NFILESW:
 214                     files = 0;
 215                     continue;
 216
 217                 case DUPADDRSW:
 218                     dupaddrs++;
 219                     continue;
 220                 case NDUPADDRSW:
 221                     dupaddrs = 0;
 222                     continue;
 223
 224                 case CCMESW:
 225                     ccme++;
 226                     continue;
 227                 case NCCMESW:
 228                     ccme = 0;
 229                     continue;
 230
 231                 case WIDTHSW:
 232                     if (!(cp = *argp++) || *cp == '-')
 233                         adios(NULL, "missing argument to %s", argp[-2]);
 234                     colwidth = atoi(cp);
 235                     continue;
 236                 case MSGNUMSW:
 237                     if (!(cp = *argp++) || *cp == '-')
 238                         adios(NULL, "missing argument to %s", argp[-2]);
 239                     msgnum = atoi(cp);
 240                     continue;
 241                 case MSGCURSW:
 242                     if (!(cp = *argp++) || *cp == '-')
 243                         adios(NULL, "missing argument to %s", argp[-2]);
 244                     msgcur = atoi(cp);
 245                     continue;
 246                 case MSGSIZESW:
 247                     if (!(cp = *argp++) || *cp == '-')
 248                         adios(NULL, "missing argument to %s", argp[-2]);
 249                     msgsize = atoi(cp);
 250                     continue;
 251                 case UNSEENSW:
 252                     if (!(cp = *argp++) || *cp == '-')
 253                         adios(NULL, "missing argument to %s", argp[-2]);
 254                     msgunseen = atoi(cp);
 255                     continue;
 256
 257                 case DUMPSW:
 258                     dump++;
 259                     continue;
 260                 case NDUMPSW:
 261                     dump = 0;
 262                     continue;
 263
 264             }
 265         }
 266
 267         /*
 268          * Only interpret as a folder if we're in message mode
 269          */
 270
 271         if (mode == MESSAGE && !files && (*cp == '+' || *cp == '@')) {
 272             if (folder)
 273                 adios (NULL, "only one folder at a time!");
 274             folder = pluspath (cp);
 275         } else
 276             app_msgarg(&msgs, cp);
 277     }
 278
 279     /*
 280      * Here's our weird heuristic:
 281      *
 282      * - We allow -dump without any other arguments.
 283      * - If you've given any component arguments, we don't require any
 284      *   other arguments.
 285      * - The arguments are interpreted as folders/messages _if_ we're in
 286      *   message mode, otherwise pass as strings in the text component.
 287      */
 288
 289    if (!dump && compargs.size == 0 && msgs.size == 0) {
 290         adios(NULL, "usage: [switches] [+folder] msgs | strings...");
 291    }
 292
 293    /*
 294     * If you're picking "raw" as a mode, then you have to select
 295     * a format.
 296     */
 297
 298    if (mode == RAW && form == NULL && format == NULL) {
 299         adios (NULL, "You must specify a format with -form or -format when "
 300                "using -raw");
 301    }
 302
 303     /*
 304      * Get new format string.  Must be before chdir().
 305      */
 306     nfs = new_fs (form, format, defformat);
 307     (void) fmt_compile(nfs, &fmt, 1);
 308
 309     if (dump || trace) {
 310         initlabels(fmt);
 311         if (dump) {
 312             fmt_dump(nfs, fmt);
 313             if (compargs.size == 0 && msgs.size == 0)
 314                 done(0);
 315         }
 316     }
 317
 318     buffer = charstring_create(BUFSIZ);
 319
 320     if (outputsize == 0) {
 321         if (mode == MESSAGE)
 322             outputsize = sc_width();
 323         else
 324             outputsize = INT_MAX;
 325     }
 326
 327     dat[0] = msgnum;
 328     dat[1] = msgcur;
 329     dat[2] = msgsize;
 330     dat[3] = colwidth == -1 ? outputsize : colwidth;
 331     dat[4] = msgunseen;
 332
 333     /*
 334      * If we want to provide our own formataddr, concactaddr, or tracing
 335      * callback, do that now.  Also, prime ismymbox if we use it.
 336      */
 337
 338     if (dupaddrs == 0 || trace) {
 339         ZERO(&cb);
 340         cbp = &cb;
 341
 342         if (dupaddrs == 0) {
 343             cb.formataddr = test_formataddr;
 344             cb.concataddr = test_concataddr;
 345             if (!ccme)
 346                 ismymbox(NULL);
 347         }
 348
 349         if (trace) {
 350             struct trace_context *ctx;
 351
 352             NEW(ctx);
 353             ctx->num = -1;
 354             ctx->str = dummy;
 355             ctx->outbuf = mh_xstrdup("");
 356
 357             cb.trace_func = test_trace;
 358             cb.trace_context = ctx;
 359         }
 360     }
 361
 362     if (mode == MESSAGE) {
 363         process_messages(fmt, &compargs, &msgs, buffer, folder, outputsize,
 364                          files, dat, cbp);
 365     } else {
 366         if (compargs.size) {
 367             for (i = 0; i < compargs.size; i += 2) {
 368                 cptr = fmt_findcomp(compargs.msgs[i]);
 369                 if (cptr)
 370                     cptr->c_text = getcpy(compargs.msgs[i + 1]);
 371             }
 372         }
 373
 374         if (mode == ADDRESS) {
 375             process_addresses(fmt, &msgs, buffer, outputsize, dat, cbp);
 376         } else /* Fall-through for RAW or DATE */
 377             process_raw(fmt, &msgs, buffer, outputsize, dat, cbp);
 378     }
 379
 380     charstring_free(buffer);
 381     fmt_free(fmt, 1);
 382
 383     done(0);
 384     return 1;
 385 }
 386
 387 /*
 388  * Process each address with fmt_scan().
 389  */
 390
 391 struct pqpair {
 392     char *pq_text;
 393     char *pq_error;
 394     struct pqpair *pq_next;
 395 };
 396
 397 static void
 398 process_addresses(struct format *fmt, struct msgs_array *addrs,
 399                   charstring_t buffer, int outwidth, int *dat,
 400                   struct fmt_callbacks *cb)
 401 {
 402     int i;
 403     char *cp, error[BUFSIZ];
 404     struct mailname *mp;
 405     struct pqpair *p, *q;
 406     struct pqpair pq;
 407     struct comp *c;
 408
 409     if (dat[0] == -1)
 410         dat[0] = 0;
 411     if (dat[1] == -1)
 412         dat[1] = 0;
 413     if (dat[2] == -1)
 414         dat[2] = 0;
 415     if (dat[4] == -1)
 416         dat[4] = 0;
 417
 418     for (i = 0; i < addrs->size; i++) {
 419         (q = &pq)->pq_next = NULL;
 420         while ((cp = getname(addrs->msgs[i]))) {
 421             NEW0(p);
 422             if ((mp = getm(cp, NULL, 0, error, sizeof(error))) == NULL) {
 423                 p->pq_text = mh_xstrdup(cp);
 424                 p->pq_error = mh_xstrdup(error);
 425             } else {
 426                 p->pq_text = getcpy(mp->m_text);
 427                 mnfree(mp);
 428             }
 429             q = (q->pq_next = p);
 430         }
 431
 432         for (p = pq.pq_next; p; p = q) {
 433             c = fmt_findcomp("text");
 434             if (c) {
 435                 free(c->c_text);
 436                 c->c_text = p->pq_text;
 437                 p->pq_text = NULL;
 438             }
 439             c = fmt_findcomp("error");
 440             if (c) {
 441                 free(c->c_text);
 442                 c->c_text = p->pq_error;
 443                 p->pq_error = NULL;
 444             }
 445
 446             fmt_scan(fmt, buffer, outwidth, dat, cb);
 447             fputs(charstring_buffer(buffer), stdout);
 448             mlistfree();
 449
 450             free(p->pq_text);
 451             free(p->pq_error);
 452             q = p->pq_next;
 453             free(p);
 454         }
 455     }
 456 }
 457
 458 /*
 459  * Process messages and run them through the format engine.  A lot taken
 460  * from scan.c.
 461  */
 462
 463 static void
 464 process_messages(struct format *fmt, struct msgs_array *comps,
 465                  struct msgs_array *msgs, charstring_t buffer, char *folder,
 466                  int outwidth, int files, int *dat,
 467                  struct fmt_callbacks *cb)
 468 {
 469     int i, msgnum, msgsize = dat[2], num = dat[0], cur = dat[1];
 470     int num_unseen_seq = 0;
 471     ivector_t seqnum = ivector_create (0);
 472     char *maildir, *cp;
 473     struct msgs *mp;
 474     FILE *in;
 475
 476     /*
 477      * If 'files' is set, short-circuit everything else and just process
 478      * everything now.
 479      */
 480
 481     if (files) {
 482         for (i = 0; i < msgs->size; i++) {
 483             if ((in = fopen(cp = msgs->msgs[i], "r")) == NULL) {
 484                 admonish(cp, "unable to open file");
 485                 continue;
 486             }
 487             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 488                                 outwidth, cb);
 489         }
 490
 491         return;
 492     }
 493
 494     if (! folder)
 495         folder = getfolder(1);
 496
 497     maildir = m_maildir(folder);
 498
 499     if (chdir(maildir) < 0)
 500         adios(maildir, "unable to change directory to");
 501
 502     if (!(mp = folder_read(folder, 1)))
 503         adios(NULL, "unable to read folder %s", folder);
 504
 505     if (mp->nummsg == 0)
 506         adios(NULL, "no messages in %s", folder);
 507
 508     for (i = 0; i < msgs->size; i++)
 509         if (!m_convert(mp, msgs->msgs[i]))
 510             done(1);
 511     seq_setprev(mp);                    /* set the Previous-Sequence */
 512
 513     context_replace(pfolder, folder);   /* update current folder */
 514     seq_save(mp);                       /* synchronize message sequences */
 515     context_save();                     /* save the context file */
 516
 517     /*
 518      * We want to set the unseen flag if requested, so we have to check
 519      * the unseen sequence as well.
 520      */
 521
 522     if (dat[4] == -1) {
 523         if ((cp = context_find(usequence)) && *cp) {
 524             char **ap, *dp;
 525
 526             dp = mh_xstrdup(cp);
 527             ap = brkstring(dp, " ", "\n");
 528             for (i = 0; ap && *ap; i++, ap++)
 529                 ivector_push_back (seqnum, seq_getnum(mp, *ap));
 530
 531             num_unseen_seq = i;
 532             free(dp);
 533         }
 534     }
 535
 536     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 537         if (is_selected(mp, msgnum)) {
 538             if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 539                 admonish(cp, "unable to open message");
 540                 continue;
 541             }
 542
 543             fmt_freecomptext();
 544
 545             if (num == -1)
 546                 dat[0] = msgnum;
 547
 548             if (cur == -1)
 549                 dat[1] = msgnum == mp->curmsg;
 550
 551             /*
 552              * Check to see if this is in the unseen sequence
 553              */
 554
 555             dat[4] = 0;
 556             for (i = 0; i < num_unseen_seq; i++) {
 557                 if (in_sequence(mp, ivector_at (seqnum, i), msgnum)) {
 558                     dat[4] = 1;
 559                     break;
 560                 }
 561             }
 562
 563             /*
 564              * Read in the message and process the components
 565              */
 566
 567             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 568                                 outwidth, cb);
 569         }
 570     }
 571
 572     ivector_free (seqnum);
 573     folder_free(mp);
 574 }
 575
 576 /*
 577  * Process a single file in message mode
 578  */
 579
 580 static void
 581 process_single_file(FILE *in, struct msgs_array *comps, int *dat, int msgsize,
 582                     struct format *fmt, charstring_t buffer, int outwidth,
 583                     struct fmt_callbacks *cb)
 584 {
 585     int i, state;
 586     char name[NAMESZ], rbuf[NMH_BUFSIZ];
 587     m_getfld_state_t gstate;
 588     struct comp *c;
 589     int bufsz;
 590
 591     /*
 592      * Get our size if we didn't include one
 593      */
 594
 595     if (msgsize == -1) {
 596         struct stat st;
 597
 598         if (fstat(fileno(in), &st) < 0)
 599             dat[2] = 0;
 600         else
 601             dat[2] = st.st_size;
 602     }
 603
 604     /*
 605      * Initialize everything else
 606      */
 607
 608     if (dat[0] == -1)
 609         dat[0] = 0;
 610     if (dat[1] == -1)
 611         dat[1] = 0;
 612     if (dat[4] == -1)
 613         dat[4] = 0;
 614
 615     /*
 616      * Read in the message and process the components
 617      */
 618
 619     gstate = m_getfld_state_init(in);
 620     for (;;) {
 621         bufsz = sizeof(rbuf);
 622         state = m_getfld2(&gstate, name, rbuf, &bufsz);
 623         switch (state) {
 624         case FLD:
 625         case FLDPLUS:
 626             i = fmt_addcomptext(name, rbuf);
 627             if (i != -1) {
 628                 while (state == FLDPLUS) {
 629                     bufsz = sizeof(rbuf);
 630                     state = m_getfld2(&gstate, name, rbuf, &bufsz);
 631                     fmt_appendcomp(i, name, rbuf);
 632                 }
 633             }
 634
 635             while (state == FLDPLUS) {
 636                 bufsz = sizeof(rbuf);
 637                 state = m_getfld2(&gstate, name, rbuf, &bufsz);
 638             }
 639             break;
 640
 641         case BODY:
 642             if (fmt_findcomp("body")) {
 643                 if ((i = strlen(rbuf)) < outwidth) {
 644                     bufsz = min (outwidth, (int) sizeof rbuf - i);
 645                     m_getfld2(&gstate, name, rbuf + i, &bufsz);
 646                 }
 647
 648                 fmt_addcomptext("body", rbuf);
 649             }
 650             goto finished;
 651
 652         default:
 653             goto finished;
 654         }
 655     }
 656 finished:
 657     fclose(in);
 658     m_getfld_state_destroy(&gstate);
 659
 660     /*
 661      * Do this now to override any components in the original message
 662      */
 663     if (comps->size) {
 664         for (i = 0; i < comps->size; i += 2) {
 665             c = fmt_findcomp(comps->msgs[i]);
 666             if (c) {
 667                 free(c->c_text);
 668                 c->c_text = getcpy(comps->msgs[i + 1]);
 669             }
 670         }
 671     }
 672     fmt_scan(fmt, buffer, outwidth, dat, cb);
 673     fputs(charstring_buffer (buffer), stdout);
 674     mlistfree();
 675 }
 676
 677 /*
 678  * Run text through the format engine with no special processing
 679  */
 680
 681 static void
 682 process_raw(struct format *fmt, struct msgs_array *text, charstring_t buffer,
 683             int outwidth, int *dat, struct fmt_callbacks *cb)
 684 {
 685     int i;
 686     struct comp *c;
 687
 688     if (dat[0] == -1)
 689         dat[0] = 0;
 690     if (dat[1] == -1)
 691         dat[1] = 0;
 692     if (dat[2] == -1)
 693         dat[2] = 0;
 694     if (dat[4] == -1)
 695         dat[4] = 0;
 696
 697     c = fmt_findcomp("text");
 698
 699     for (i = 0; i < text->size; i++) {
 700         if (c != NULL) {
 701             free(c->c_text);
 702             c->c_text = getcpy(text->msgs[i]);
 703         }
 704
 705         fmt_scan(fmt, buffer, outwidth, dat, cb);
 706         fputs(charstring_buffer (buffer), stdout);
 707         mlistfree();
 708     }
 709 }
 710
 711 /*
 712  * Our basic tracing support callback.
 713  *
 714  * Print out each instruction as it's executed, including the values of
 715  * the num and str registers if they've changed.
 716  */
 717
 718 static void
 719 test_trace(void *context, struct format *fmt, int num, char *str,
 720            const char *outbuf)
 721 {
 722     struct trace_context *ctx = (struct trace_context *) context;
 723     int changed = 0;
 724
 725     dumpone(fmt);
 726
 727     if (num != ctx->num) {
 728         printf("num=%d", num);
 729         ctx->num = num;
 730         changed++;
 731     }
 732
 733     if (str != ctx->str) {
 734         if (changed++)
 735             putchar(' ');
 736         printf("str=");
 737         litputs(str);
 738         ctx->str = str;
 739     }
 740
 741     if (changed)
 742         putchar('\n');
 743
 744     if (strcmp(outbuf, ctx->outbuf) != 0) {
 745         printf("outbuf=");
 746         litputs(outbuf);
 747         putchar('\n');
 748         free(ctx->outbuf);
 749         ctx->outbuf = mh_xstrdup(outbuf);
 750     }
 751 }
 752
 753 static void
 754 fmt_dump (char *nfs, struct format *fmth)
 755 {
 756         struct format *fmt;
 757
 758         printf("Instruction dump of format string: \n%s\n", nfs);
 759
 760         /* Dump them out! */
 761         for (fmt = fmth; fmt; ++fmt) {
 762                 dumpone(fmt);
 763                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 764                         break;
 765         }
 766 }
 767
 768 static void
 769 dumpone(struct format *fmt)
 770 {
 771         int i;
 772
 773         if ((i = findlabel(fmt)) >= 0)
 774                 printf("L%d:", i);
 775         putchar('\t');
 776
 777         fputs(f_typestr((int)fmt->f_type), stdout);
 778
 779         switch (fmt->f_type) {
 780
 781         case FT_COMP:
 782         case FT_LS_COMP:
 783         case FT_LV_COMPFLAG:
 784         case FT_LV_COMP:
 785                 printf(", comp ");
 786                 litputs(fmt->f_comp->c_name);
 787                 if (fmt->f_comp->c_type)
 788                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 789                 if (fmt->f_comp->c_flags)
 790                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 791                 break;
 792
 793         case FT_LV_SEC:
 794         case FT_LV_MIN:
 795         case FT_LV_HOUR:
 796         case FT_LV_MDAY:
 797         case FT_LV_MON:
 798         case FT_LS_MONTH:
 799         case FT_LS_LMONTH:
 800         case FT_LS_ZONE:
 801         case FT_LV_YEAR:
 802         case FT_LV_WDAY:
 803         case FT_LS_DAY:
 804         case FT_LS_WEEKDAY:
 805         case FT_LV_YDAY:
 806         case FT_LV_ZONE:
 807         case FT_LV_CLOCK:
 808         case FT_LV_RCLOCK:
 809         case FT_LV_DAYF:
 810         case FT_LV_ZONEF:
 811         case FT_LV_DST:
 812         case FT_LS_822DATE:
 813         case FT_LS_PRETTY:
 814         case FT_LOCALDATE:
 815         case FT_GMTDATE:
 816         case FT_PARSEDATE:
 817                 printf(", c_name ");
 818                 litputs(fmt->f_comp->c_name);
 819                 if (fmt->f_comp->c_type)
 820                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 821                 if (fmt->f_comp->c_flags)
 822                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 823                 break;
 824
 825         case FT_LS_ADDR:
 826         case FT_LS_PERS:
 827         case FT_LS_MBOX:
 828         case FT_LS_HOST:
 829         case FT_LS_PATH:
 830         case FT_LS_GNAME:
 831         case FT_LS_NOTE:
 832         case FT_LS_822ADDR:
 833         case FT_LV_HOSTTYPE:
 834         case FT_LV_INGRPF:
 835         case FT_LV_NOHOSTF:
 836         case FT_LS_FRIENDLY:
 837         case FT_PARSEADDR:
 838         case FT_MYMBOX:
 839         case FT_GETMYMBOX:
 840         case FT_GETMYADDR:
 841                 printf(", c_name ");
 842                 litputs(fmt->f_comp->c_name);
 843                 if (fmt->f_comp->c_type)
 844                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 845                 if (fmt->f_comp->c_flags)
 846                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 847                 break;
 848
 849         case FT_COMPF:
 850                 printf(", width %d, fill '", fmt->f_width);
 851                 litputc(fmt->f_fill);
 852                 printf("' name ");
 853                 litputs(fmt->f_comp->c_name);
 854                 if (fmt->f_comp->c_type)
 855                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 856                 if (fmt->f_comp->c_flags)
 857                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 858                 break;
 859
 860         case FT_STRF:
 861         case FT_NUMF:
 862                 printf(", width %d, fill '", fmt->f_width);
 863                 litputc(fmt->f_fill);
 864                 putchar('\'');
 865                 break;
 866
 867         case FT_LIT:
 868                 putchar(' ');
 869                 litputs(fmt->f_text);
 870                 break;
 871
 872         case FT_LITF:
 873                 printf(", width %d, fill '", fmt->f_width);
 874                 litputc(fmt->f_fill);
 875                 printf("' ");
 876                 litputs(fmt->f_text);
 877                 break;
 878
 879         case FT_CHAR:
 880                 putchar(' ');
 881                 putchar('\'');
 882                 litputc(fmt->f_char);
 883                 putchar('\'');
 884                 break;
 885
 886
 887         case FT_IF_S:
 888         case FT_IF_S_NULL:
 889         case FT_IF_MATCH:
 890         case FT_IF_AMATCH:
 891                 printf(" continue else goto");
 892                 /* FALLTHRU */
 893         case FT_GOTO:
 894                 i = findlabel(fmt + fmt->f_skip);
 895                 printf(" L%d", i);
 896                 break;
 897
 898         case FT_IF_V_EQ:
 899         case FT_IF_V_NE:
 900         case FT_IF_V_GT:
 901                 i = findlabel(fmt + fmt->f_skip);
 902                 printf(" %d continue else goto L%d", fmt->f_value, i);
 903                 break;
 904
 905         case FT_V_EQ:
 906         case FT_V_NE:
 907         case FT_V_GT:
 908         case FT_LV_LIT:
 909         case FT_LV_PLUS_L:
 910         case FT_LV_MINUS_L:
 911         case FT_LV_MULTIPLY_L:
 912         case FT_LV_DIVIDE_L:
 913         case FT_LV_MODULO_L:
 914                 printf(" value %d", fmt->f_value);
 915                 break;
 916
 917         case FT_LS_LIT:
 918                 printf(" str ");
 919                 litputs(fmt->f_text);
 920                 break;
 921
 922         case FT_LS_GETENV:
 923                 printf(" getenv ");
 924                 litputs(fmt->f_text);
 925                 break;
 926
 927         case FT_LS_DECODECOMP:
 928                 printf(", comp ");
 929                 litputs(fmt->f_comp->c_name);
 930                 break;
 931
 932         case FT_LS_DECODE:
 933                 break;
 934
 935         case FT_LS_TRIM:
 936                 printf(", width %d", fmt->f_width);
 937                 break;
 938
 939         case FT_LV_DAT:
 940                 printf(", value dat[%d]", fmt->f_value);
 941                 break;
 942         }
 943         putchar('\n');
 944 }
 945
 946 /*
 947  * Iterate over all instructions and assign labels to the targets of
 948  * branch statements
 949  */
 950
 951 static void
 952 initlabels(struct format *fmth)
 953 {
 954         struct format *fmt, *addr;
 955         int i;
 956
 957         /* Assign labels */
 958         for (fmt = fmth; fmt; ++fmt) {
 959                 i = fmt->f_type;
 960                 if (i == FT_IF_S ||
 961                     i == FT_IF_S_NULL ||
 962                     i == FT_IF_V_EQ ||
 963                     i == FT_IF_V_NE ||
 964                     i == FT_IF_V_GT ||
 965                     i == FT_IF_MATCH ||
 966                     i == FT_IF_AMATCH ||
 967                     i == FT_GOTO) {
 968                         addr = fmt + fmt->f_skip;
 969                         if (findlabel(addr) < 0)
 970                                 assignlabel(addr);
 971                 }
 972                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 973                         break;
 974         }
 975 }
 976
 977
 978 static int
 979 findlabel(struct format *addr)
 980 {
 981         int i;
 982
 983         for (i = 0; i < lused; ++i)
 984                 if (addr == lvec[i])
 985                         return(i);
 986         return(-1);
 987 }
 988
 989 static void
 990 assignlabel(struct format *addr)
 991 {
 992         if (lused >= lallocated) {
 993                 lallocated += 64;
 994                 lvec = (struct format **)
 995                         mh_xrealloc(lvec, sizeof(struct format *) * lallocated);
 996         }
 997
 998         lvec[lused++] = addr;
 999 }
1000
1001 static char *
1002 f_typestr(int t)
1003 {
1004         static char buf[32];
1005
1006         switch (t) {
1007         case FT_COMP: return "COMP";
1008         case FT_COMPF: return "COMPF";
1009         case FT_LIT: return "LIT";
1010         case FT_LITF: return "LITF";
1011         case FT_CHAR: return "CHAR";
1012         case FT_NUM: return "NUM";
1013         case FT_NUMF: return "NUMF";
1014         case FT_STR: return "STR";
1015         case FT_STRF: return "STRF";
1016         case FT_STRFW: return "STRFW";
1017         case FT_STRLIT: return "STRLIT";
1018         case FT_STRLITZ: return "STRLITZ";
1019         case FT_PUTADDR: return "PUTADDR";
1020         case FT_LS_COMP: return "LS_COMP";
1021         case FT_LS_LIT: return "LS_LIT";
1022         case FT_LS_GETENV: return "LS_GETENV";
1023         case FT_LS_CFIND: return "LS_CFIND";
1024         case FT_LS_DECODECOMP: return "LS_DECODECOMP";
1025         case FT_LS_DECODE: return "LS_DECODE";
1026         case FT_LS_TRIM: return "LS_TRIM";
1027         case FT_LV_COMP: return "LV_COMP";
1028         case FT_LV_COMPFLAG: return "LV_COMPFLAG";
1029         case FT_LV_LIT: return "LV_LIT";
1030         case FT_LV_DAT: return "LV_DAT";
1031         case FT_LV_STRLEN: return "LV_STRLEN";
1032         case FT_LV_PLUS_L: return "LV_PLUS_L";
1033         case FT_LV_MINUS_L: return "LV_MINUS_L";
1034         case FT_LV_MULTIPLY_L: return "LV_MULTIPLY_L";
1035         case FT_LV_DIVIDE_L: return "LV_DIVIDE_L";
1036         case FT_LV_MODULO_L: return "LV_MODULO_L";
1037         case FT_LV_CHAR_LEFT: return "LV_CHAR_LEFT";
1038         case FT_LS_MONTH: return "LS_MONTH";
1039         case FT_LS_LMONTH: return "LS_LMONTH";
1040         case FT_LS_ZONE: return "LS_ZONE";
1041         case FT_LS_DAY: return "LS_DAY";
1042         case FT_LS_WEEKDAY: return "LS_WEEKDAY";
1043         case FT_LS_822DATE: return "LS_822DATE";
1044         case FT_LS_PRETTY: return "LS_PRETTY";
1045         case FT_LS_KILO: return "LS_KILO";
1046         case FT_LS_KIBI: return "LS_KIBI";
1047         case FT_LV_SEC: return "LV_SEC";
1048         case FT_LV_MIN: return "LV_MIN";
1049         case FT_LV_HOUR: return "LV_HOUR";
1050         case FT_LV_MDAY: return "LV_MDAY";
1051         case FT_LV_MON: return "LV_MON";
1052         case FT_LV_YEAR: return "LV_YEAR";
1053         case FT_LV_YDAY: return "LV_YDAY";
1054         case FT_LV_WDAY: return "LV_WDAY";
1055         case FT_LV_ZONE: return "LV_ZONE";
1056         case FT_LV_CLOCK: return "LV_CLOCK";
1057         case FT_LV_RCLOCK: return "LV_RCLOCK";
1058         case FT_LV_DAYF: return "LV_DAYF";
1059         case FT_LV_DST: return "LV_DST";
1060         case FT_LV_ZONEF: return "LV_ZONEF";
1061         case FT_LS_PERS: return "LS_PERS";
1062         case FT_LS_MBOX: return "LS_MBOX";
1063         case FT_LS_HOST: return "LS_HOST";
1064         case FT_LS_PATH: return "LS_PATH";
1065         case FT_LS_GNAME: return "LS_GNAME";
1066         case FT_LS_NOTE: return "LS_NOTE";
1067         case FT_LS_ADDR: return "LS_ADDR";
1068         case FT_LS_822ADDR: return "LS_822ADDR";
1069         case FT_LS_FRIENDLY: return "LS_FRIENDLY";
1070         case FT_LV_HOSTTYPE: return "LV_HOSTTYPE";
1071         case FT_LV_INGRPF: return "LV_INGRPF";
1072         case FT_LS_UNQUOTE: return "LS_UNQUOTE";
1073         case FT_LV_NOHOSTF: return "LV_NOHOSTF";
1074         case FT_LOCALDATE: return "LOCALDATE";
1075         case FT_GMTDATE: return "GMTDATE";
1076         case FT_PARSEDATE: return "PARSEDATE";
1077         case FT_PARSEADDR: return "PARSEADDR";
1078         case FT_FORMATADDR: return "FORMATADDR";
1079         case FT_CONCATADDR: return "CONCATADDR";
1080         case FT_MYMBOX: return "MYMBOX";
1081         case FT_GETMYMBOX: return "GETMYMBOX";
1082         case FT_GETMYADDR: return "GETMYADDR";
1083         case FT_SAVESTR: return "SAVESTR";
1084         case FT_DONE: return "DONE";
1085         case FT_PAUSE: return "PAUSE";
1086         case FT_NOP: return "NOP";
1087         case FT_GOTO: return "GOTO";
1088         case FT_IF_S_NULL: return "IF_S_NULL";
1089         case FT_IF_S: return "IF_S";
1090         case FT_IF_V_EQ: return "IF_V_EQ";
1091         case FT_IF_V_NE: return "IF_V_NE";
1092         case FT_IF_V_GT: return "IF_V_GT";
1093         case FT_IF_MATCH: return "IF_MATCH";
1094         case FT_IF_AMATCH: return "IF_AMATCH";
1095         case FT_S_NULL: return "S_NULL";
1096         case FT_S_NONNULL: return "S_NONNULL";
1097         case FT_V_EQ: return "V_EQ";
1098         case FT_V_NE: return "V_NE";
1099         case FT_V_GT: return "V_GT";
1100         case FT_V_MATCH: return "V_MATCH";
1101         case FT_V_AMATCH: return "V_AMATCH";
1102         default:
1103                 snprintf(buf, sizeof(buf), "/* ??? #%d */", t);
1104                 return(buf);
1105         }
1106 }
1107
1108 static char *
1109 c_typestr(int t)
1110 {
1111         static char buf[64];
1112
1113         snprintb(buf, sizeof(buf), t, CT_BITS);
1114         return(buf);
1115 }
1116
1117 static char *
1118 c_flagsstr(int t)
1119 {
1120         static char buf[64];
1121
1122         snprintb(buf, sizeof(buf), t, CF_BITS);
1123         return(buf);
1124 }
1125
1126 static void
1127 litputs(const char *s)
1128 {
1129         if (s) {
1130                 putchar('"');
1131                 while (*s)
1132                         litputc(*s++);
1133                 putchar('"');
1134         } else
1135                 fputs("<nil>", stdout);
1136 }
1137
1138 static void
1139 litputc(char c)
1140 {
1141         if (c & ~ 0177) {
1142                 printf("\\x%02x", (unsigned char) c);
1143         } else if (c < 0x20 || c == 0177) {
1144                 if (c == '\b') {
1145                         putchar('\\');
1146                         putchar('b');
1147                 } else if (c == '\f') {
1148                         putchar('\\');
1149                         putchar('f');
1150                 } else if (c == '\n') {
1151                         putchar('\\');
1152                         putchar('n');
1153                 } else if (c == '\r') {
1154                         putchar('\\');
1155                         putchar('r');
1156                 } else if (c == '\t') {
1157                         putchar('\\');
1158                         putchar('t');
1159                 } else {
1160                         putchar('^');
1161                         putchar(c ^ 0x40);      /* DEL to ?, others to alpha */
1162                 }
1163         } else
1164                 putchar(c);
1165 }
1166
1167 /*
1168  * Routines/code to support the duplicate address suppression code, adapted
1169  * from replsbr.c
1170  */
1171
1172 static char *buf;               /* our current working buffer */
1173 static char *bufend;            /* end of working buffer */
1174 static char *last_dst;          /* buf ptr at end of last call */
1175 static unsigned int bufsiz=0;   /* current size of buf */
1176
1177 #define BUFINCR 512             /* how much to expand buf when if fills */
1178
1179 #define CPY(s) { cp = (s); while ((*dst++ = *cp++)) ; --dst; }
1180
1181 /*
1182  * check if there's enough room in buf for str.
1183  * add more mem if needed
1184  */
1185 #define CHECKMEM(str) \
1186             if ((len = strlen (str)) >= bufend - dst) {\
1187                 int i = dst - buf;\
1188                 int n = last_dst - buf;\
1189                 bufsiz += ((dst + len - bufend) / BUFINCR + 1) * BUFINCR;\
1190                 buf = mh_xrealloc (buf, bufsiz);\
1191                 dst = buf + i;\
1192                 last_dst = buf + n;\
1193                 bufend = buf + bufsiz;\
1194             }
1195
1196
1197 /*
1198  * These are versions of similar routines from replsbr.c; the purpose is
1199  * to suppress duplicate addresses from being added to a list when building
1200  * up addresses for the %(formataddr) format function.  This is used by
1201  * repl to prevent duplicate addresses from being added to the "to" line.
1202  * See replsbr.c for more information.
1203  *
1204  * We can't use the functions in replsbr.c directly because they are slightly
1205  * different and depend on the rest of replsbr.c
1206  */
1207 static char *
1208 test_formataddr (char *orig, char *str)
1209 {
1210     int len;
1211     char error[BUFSIZ];
1212     int isgroup;
1213     char *dst;
1214     char *cp;
1215     char *sp;
1216     struct mailname *mp = NULL;
1217
1218     /* if we don't have a buffer yet, get one */
1219     if (bufsiz == 0) {
1220         buf = mh_xmalloc (BUFINCR);
1221         last_dst = buf;         /* XXX */
1222         bufsiz = BUFINCR - 6;  /* leave some slop */
1223         bufend = buf + bufsiz;
1224     }
1225     /*
1226      * If "orig" points to our buffer we can just pick up where we
1227      * left off.  Otherwise we have to copy orig into our buffer.
1228      */
1229     if (orig == buf)
1230         dst = last_dst;
1231     else if (!orig || !*orig) {
1232         dst = buf;
1233         *dst = '\0';
1234     } else {
1235         dst = last_dst;         /* XXX */
1236         CHECKMEM (orig);
1237         CPY (orig);
1238     }
1239
1240     /* concatenate all the new addresses onto 'buf' */
1241     for (isgroup = 0; (cp = getname (str)); ) {
1242         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
1243             fprintf(stderr, "bad address \"%s\" -- %s\n", cp, error);
1244             continue;
1245         }
1246         if (isgroup && (mp->m_gname || !mp->m_ingrp)) {
1247             *dst++ = ';';
1248             isgroup = 0;
1249         }
1250         if (insert (mp)) {
1251             /* if we get here we're going to add an address */
1252             if (dst != buf) {
1253                 *dst++ = ',';
1254                 *dst++ = ' ';
1255             }
1256             if (mp->m_gname) {
1257                 CHECKMEM (mp->m_gname);
1258                 CPY (mp->m_gname);
1259                 isgroup++;
1260             }
1261             sp = adrformat (mp);
1262             CHECKMEM (sp);
1263             CPY (sp);
1264         }
1265     }
1266
1267     if (isgroup)
1268         *dst++ = ';';
1269
1270     *dst = '\0';
1271     last_dst = dst;
1272     return (buf);
1273 }
1274
1275
1276 /*
1277  * The companion to test_formataddr(); it behaves the same way, except doesn't
1278  * do duplicate address detection.
1279  */
1280 static char *
1281 test_concataddr(char *orig, char *str)
1282 {
1283     char *cp;
1284
1285     nodupcheck = 1;
1286     cp = test_formataddr(orig, str);
1287     nodupcheck = 0;
1288     return cp;
1289 }
1290
1291 static int
1292 insert (struct mailname *np)
1293 {
1294     struct mailname *mp;
1295
1296     if (nodupcheck)
1297         return 1;
1298
1299     if (np->m_mbox == NULL)
1300         return 0;
1301
1302     for (mp = &mq; mp->m_next; mp = mp->m_next) {
1303         if (!strcasecmp (FENDNULL(np->m_host),
1304                          FENDNULL(mp->m_next->m_host)) &&
1305             !strcasecmp (FENDNULL(np->m_mbox),
1306                          FENDNULL(mp->m_next->m_mbox)))
1307             return 0;
1308     }
1309     if (!ccme && ismymbox (np))
1310         return 0;
1311
1312     mp->m_next = np;
1313
1314     return 1;
1315 }
1316
1317 /*
1318  * Reset our duplicate address list
1319  */
1320
1321 void
1322 mlistfree(void)
1323 {
1324     struct mailname *mp, *mp2;
1325
1326     for (mp = mq.m_next; mp; mp = mp2) {
1327         mp2 = mp->m_next;
1328         mnfree(mp);
1329     }
1330 }