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

   1
   2 /*
   3  * fmttest.c -- A program to help test and debug format instructions
   4  *
   5  * This code is Copyright (c) 2012, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/fmt_scan.h>
  12 #include <h/fmt_compile.h>
  13 #include <h/utils.h>
  14 #include <h/scansbr.h>
  15 #include <h/addrsbr.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             else
 275                 folder = pluspath (cp);
 276         } else
 277             app_msgarg(&msgs, cp);
 278     }
 279
 280     /*
 281      * Here's our weird heuristic:
 282      *
 283      * - We allow -dump without any other arguments.
 284      * - If you've given any component arguments, we don't require any
 285      *   other arguments.
 286      * - The arguments are interpreted as folders/messages _if_ we're in
 287      *   message mode, otherwise pass as strings in the text component.
 288      */
 289
 290    if (!dump && compargs.size == 0 && msgs.size == 0) {
 291         adios (NULL, "usage: [switches] [+folder] msgs | strings...",
 292                invo_name);
 293    }
 294
 295    /*
 296     * If you're picking "raw" as a mode, then you have to select
 297     * a format.
 298     */
 299
 300    if (mode == RAW && form == NULL && format == NULL) {
 301         adios (NULL, "You must specify a format with -form or -format when "
 302                "using -raw");
 303    }
 304
 305     /*
 306      * Get new format string.  Must be before chdir().
 307      */
 308     nfs = new_fs (form, format, defformat);
 309     (void) fmt_compile(nfs, &fmt, 1);
 310
 311     if (dump || trace) {
 312         initlabels(fmt);
 313         if (dump) {
 314             fmt_dump(nfs, fmt);
 315             if (compargs.size == 0 && msgs.size == 0)
 316                 done(0);
 317         }
 318     }
 319
 320     buffer = charstring_create(BUFSIZ);
 321
 322     if (outputsize == 0) {
 323         if (mode == MESSAGE)
 324             outputsize = sc_width();
 325         else
 326             outputsize = INT_MAX;
 327     }
 328
 329     dat[0] = msgnum;
 330     dat[1] = msgcur;
 331     dat[2] = msgsize;
 332     dat[3] = colwidth == -1 ? outputsize : colwidth;
 333     dat[4] = msgunseen;
 334
 335     /*
 336      * If we want to provide our own formataddr, concactaddr, or tracing
 337      * callback, do that now.  Also, prime ismymbox if we use it.
 338      */
 339
 340     if (dupaddrs == 0 || trace) {
 341         memset(&cb, 0, sizeof(cb));
 342         cbp = &cb;
 343
 344         if (dupaddrs == 0) {
 345             cb.formataddr = test_formataddr;
 346             cb.concataddr = test_concataddr;
 347             if (!ccme)
 348                 ismymbox(NULL);
 349         }
 350
 351         if (trace) {
 352             struct trace_context *ctx;
 353
 354             NEW(ctx);
 355             ctx->num = -1;
 356             ctx->str = dummy;
 357             ctx->outbuf = mh_xstrdup("");
 358
 359             cb.trace_func = test_trace;
 360             cb.trace_context = ctx;
 361         }
 362     }
 363
 364     if (mode == MESSAGE) {
 365         process_messages(fmt, &compargs, &msgs, buffer, folder, outputsize,
 366                          files, dat, cbp);
 367     } else {
 368         if (compargs.size) {
 369             for (i = 0; i < compargs.size; i += 2) {
 370                 cptr = fmt_findcomp(compargs.msgs[i]);
 371                 if (cptr)
 372                     cptr->c_text = getcpy(compargs.msgs[i + 1]);
 373             }
 374         }
 375
 376         if (mode == ADDRESS) {
 377             process_addresses(fmt, &msgs, buffer, outputsize, dat, cbp);
 378         } else /* Fall-through for RAW or DATE */
 379             process_raw(fmt, &msgs, buffer, outputsize, dat, cbp);
 380     }
 381
 382     charstring_free(buffer);
 383     fmt_free(fmt, 1);
 384
 385     done(0);
 386     return 1;
 387 }
 388
 389 /*
 390  * Process each address with fmt_scan().
 391  */
 392
 393 struct pqpair {
 394     char *pq_text;
 395     char *pq_error;
 396     struct pqpair *pq_next;
 397 };
 398
 399 static void
 400 process_addresses(struct format *fmt, struct msgs_array *addrs,
 401                   charstring_t buffer, int outwidth, int *dat,
 402                   struct fmt_callbacks *cb)
 403 {
 404     int i;
 405     char *cp, error[BUFSIZ];
 406     struct mailname *mp;
 407     struct pqpair *p, *q;
 408     struct pqpair pq;
 409     struct comp *c;
 410
 411     if (dat[0] == -1)
 412         dat[0] = 0;
 413     if (dat[1] == -1)
 414         dat[1] = 0;
 415     if (dat[2] == -1)
 416         dat[2] = 0;
 417     if (dat[4] == -1)
 418         dat[4] = 0;
 419
 420     for (i = 0; i < addrs->size; i++) {
 421         (q = &pq)->pq_next = NULL;
 422         while ((cp = getname(addrs->msgs[i]))) {
 423             NEW0(p);
 424             if ((mp = getm(cp, NULL, 0, error, sizeof(error))) == NULL) {
 425                 p->pq_text = mh_xstrdup(cp);
 426                 p->pq_error = mh_xstrdup(error);
 427             } else {
 428                 p->pq_text = getcpy(mp->m_text);
 429                 mnfree(mp);
 430             }
 431             q = (q->pq_next = p);
 432         }
 433
 434         for (p = pq.pq_next; p; p = q) {
 435             c = fmt_findcomp("text");
 436             if (c) {
 437                 mh_xfree(c->c_text);
 438                 c->c_text = p->pq_text;
 439                 p->pq_text = NULL;
 440             }
 441             c = fmt_findcomp("error");
 442             if (c) {
 443                 mh_xfree(c->c_text);
 444                 c->c_text = p->pq_error;
 445                 p->pq_error = NULL;
 446             }
 447
 448             fmt_scan(fmt, buffer, outwidth, dat, cb);
 449             fputs(charstring_buffer(buffer), stdout);
 450             mlistfree();
 451
 452             mh_xfree(p->pq_text);
 453             mh_xfree(p->pq_error);
 454             q = p->pq_next;
 455             free(p);
 456         }
 457     }
 458 }
 459
 460 /*
 461  * Process messages and run them through the format engine.  A lot taken
 462  * from scan.c.
 463  */
 464
 465 static void
 466 process_messages(struct format *fmt, struct msgs_array *comps,
 467                  struct msgs_array *msgs, charstring_t buffer, char *folder,
 468                  int outwidth, int files, int *dat,
 469                  struct fmt_callbacks *cb)
 470 {
 471     int i, msgnum, msgsize = dat[2], num = dat[0], cur = dat[1];
 472     int num_unseen_seq = 0;
 473     ivector_t seqnum = ivector_create (0);
 474     char *maildir, *cp;
 475     struct msgs *mp;
 476     FILE *in;
 477
 478     /*
 479      * If 'files' is set, short-circuit everything else and just process
 480      * everything now.
 481      */
 482
 483     if (files) {
 484         for (i = 0; i < msgs->size; i++) {
 485             if ((in = fopen(cp = msgs->msgs[i], "r")) == NULL) {
 486                 admonish(cp, "unable to open file");
 487                 continue;
 488             }
 489             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 490                                 outwidth, cb);
 491         }
 492
 493         return;
 494     }
 495
 496     if (! folder)
 497         folder = getfolder(1);
 498
 499     maildir = m_maildir(folder);
 500
 501     if (chdir(maildir) < 0)
 502         adios(maildir, "unable to change directory to");
 503
 504     if (!(mp = folder_read(folder, 1)))
 505         adios(NULL, "unable to read folder %s", folder);
 506
 507     if (mp->nummsg == 0)
 508         adios(NULL, "no messages in %s", folder);
 509
 510     for (i = 0; i < msgs->size; i++)
 511         if (!m_convert(mp, msgs->msgs[i]))
 512             done(1);
 513     seq_setprev(mp);                    /* set the Previous-Sequence */
 514
 515     context_replace(pfolder, folder);   /* update curren folder */
 516     seq_save(mp);                       /* synchronize message sequences */
 517     context_save();                     /* save the context file */
 518
 519     /*
 520      * We want to set the unseen flag if requested, so we have to check
 521      * the unseen sequence as well.
 522      */
 523
 524     if (dat[4] == -1) {
 525         if ((cp = context_find(usequence)) && *cp) {
 526             char **ap, *dp;
 527
 528             dp = mh_xstrdup(cp);
 529             ap = brkstring(dp, " ", "\n");
 530             for (i = 0; ap && *ap; i++, ap++)
 531                 ivector_push_back (seqnum, seq_getnum(mp, *ap));
 532
 533             num_unseen_seq = i;
 534             mh_xfree(dp);
 535         }
 536     }
 537
 538     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 539         if (is_selected(mp, msgnum)) {
 540             if ((in = fopen(cp = m_name(msgnum), "r")) == NULL) {
 541                 admonish(cp, "unable to open message");
 542                 continue;
 543             }
 544
 545             fmt_freecomptext();
 546
 547             if (num == -1)
 548                 dat[0] = msgnum;
 549
 550             if (cur == -1)
 551                 dat[1] = msgnum == mp->curmsg;
 552
 553             /*
 554              * Check to see if this is in the unseen sequence
 555              */
 556
 557             dat[4] = 0;
 558             for (i = 0; i < num_unseen_seq; i++) {
 559                 if (in_sequence(mp, ivector_at (seqnum, i), msgnum)) {
 560                     dat[4] = 1;
 561                     break;
 562                 }
 563             }
 564
 565             /*
 566              * Read in the message and process the components
 567              */
 568
 569             process_single_file(in, comps, dat, msgsize, fmt, buffer,
 570                                 outwidth, cb);
 571         }
 572     }
 573
 574     ivector_free (seqnum);
 575     folder_free(mp);
 576     return;
 577 }
 578
 579 /*
 580  * Process a single file in message mode
 581  */
 582
 583 static void
 584 process_single_file(FILE *in, struct msgs_array *comps, int *dat, int msgsize,
 585                     struct format *fmt, charstring_t buffer, int outwidth,
 586                     struct fmt_callbacks *cb)
 587 {
 588     int i, state;
 589     char name[NAMESZ], rbuf[NMH_BUFSIZ];
 590     m_getfld_state_t gstate = 0;
 591     struct comp *c;
 592     int bufsz;
 593
 594     /*
 595      * Get our size if we didn't include one
 596      */
 597
 598     if (msgsize == -1) {
 599         struct stat st;
 600
 601         if (fstat(fileno(in), &st) < 0)
 602             dat[2] = 0;
 603         else
 604             dat[2] = st.st_size;
 605     }
 606
 607     /*
 608      * Initialize everyting else
 609      */
 610
 611     if (dat[0] == -1)
 612         dat[0] = 0;
 613     if (dat[1] == -1)
 614         dat[1] = 0;
 615     if (dat[4] == -1)
 616         dat[4] = 0;
 617
 618     /*
 619      * Read in the message and process the components
 620      */
 621
 622     for (;;) {
 623         bufsz = sizeof(rbuf);
 624         state = m_getfld(&gstate, name, rbuf, &bufsz, in);
 625         switch (state) {
 626         case FLD:
 627         case FLDPLUS:
 628             i = fmt_addcomptext(name, rbuf);
 629             if (i != -1) {
 630                 while (state == FLDPLUS) {
 631                     bufsz = sizeof(rbuf);
 632                     state = m_getfld(&gstate, name, rbuf, &bufsz, in);
 633                     fmt_appendcomp(i, name, rbuf);
 634                 }
 635             }
 636
 637             while (state == FLDPLUS) {
 638                 bufsz = sizeof(rbuf);
 639                 state = m_getfld(&gstate, name, rbuf, &bufsz, in);
 640             }
 641             break;
 642
 643         case BODY:
 644             if (fmt_findcomp("body")) {
 645                 if ((i = strlen(rbuf)) < outwidth) {
 646                     bufsz = min (outwidth, (int) sizeof rbuf - i);
 647                     m_getfld(&gstate, name, rbuf + i, &bufsz, in);
 648                 }
 649
 650                 fmt_addcomptext("body", rbuf);
 651             }
 652             /* fall through */
 653
 654         default:
 655             goto finished;
 656         }
 657     }
 658 finished:
 659     fclose(in);
 660     m_getfld_state_destroy(&gstate);
 661
 662     /*
 663      * Do this now to override any components in the original message
 664      */
 665     if (comps->size) {
 666         for (i = 0; i < comps->size; i += 2) {
 667             c = fmt_findcomp(comps->msgs[i]);
 668             if (c) {
 669                 mh_xfree(c->c_text);
 670                 c->c_text = getcpy(comps->msgs[i + 1]);
 671             }
 672         }
 673     }
 674     fmt_scan(fmt, buffer, outwidth, dat, cb);
 675     fputs(charstring_buffer (buffer), stdout);
 676     mlistfree();
 677 }
 678
 679 /*
 680  * Run text through the format engine with no special processing
 681  */
 682
 683 static void
 684 process_raw(struct format *fmt, struct msgs_array *text, charstring_t buffer,
 685             int outwidth, int *dat, struct fmt_callbacks *cb)
 686 {
 687     int i;
 688     struct comp *c;
 689
 690     if (dat[0] == -1)
 691         dat[0] = 0;
 692     if (dat[1] == -1)
 693         dat[1] = 0;
 694     if (dat[2] == -1)
 695         dat[2] = 0;
 696     if (dat[4] == -1)
 697         dat[4] = 0;
 698
 699     c = fmt_findcomp("text");
 700
 701     for (i = 0; i < text->size; i++) {
 702         if (c != NULL) {
 703             mh_xfree(c->c_text);
 704             c->c_text = getcpy(text->msgs[i]);
 705         }
 706
 707         fmt_scan(fmt, buffer, outwidth, dat, cb);
 708         fputs(charstring_buffer (buffer), stdout);
 709         mlistfree();
 710     }
 711 }
 712
 713 /*
 714  * Our basic tracing support callback.
 715  *
 716  * Print out each instruction as it's executed, including the values of
 717  * the num and str registers if they've changed.
 718  */
 719
 720 static void
 721 test_trace(void *context, struct format *fmt, int num, char *str,
 722            const char *outbuf)
 723 {
 724     struct trace_context *ctx = (struct trace_context *) context;
 725     int changed = 0;
 726
 727     dumpone(fmt);
 728
 729     if (num != ctx->num) {
 730         printf("num=%d", num);
 731         ctx->num = num;
 732         changed++;
 733     }
 734
 735     if (str != ctx->str) {
 736         if (changed++)
 737             putchar(' ');
 738         printf("str=");
 739         litputs(str);
 740         ctx->str = str;
 741     }
 742
 743     if (changed)
 744         putchar('\n');
 745
 746     if (strcmp(outbuf, ctx->outbuf) != 0) {
 747         printf("outbuf=");
 748         litputs(outbuf);
 749         putchar('\n');
 750         free(ctx->outbuf);
 751         ctx->outbuf = mh_xstrdup(outbuf);
 752     }
 753 }
 754
 755 static void
 756 fmt_dump (char *nfs, struct format *fmth)
 757 {
 758         struct format *fmt;
 759
 760         printf("Instruction dump of format string: \n%s\n", nfs);
 761
 762         /* Dump them out! */
 763         for (fmt = fmth; fmt; ++fmt) {
 764                 dumpone(fmt);
 765                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 766                         break;
 767         }
 768 }
 769
 770 static void
 771 dumpone(struct format *fmt)
 772 {
 773         int i;
 774
 775         if ((i = findlabel(fmt)) >= 0)
 776                 printf("L%d:", i);
 777         putchar('\t');
 778
 779         fputs(f_typestr((int)fmt->f_type), stdout);
 780
 781         switch (fmt->f_type) {
 782
 783         case FT_COMP:
 784         case FT_LS_COMP:
 785         case FT_LV_COMPFLAG:
 786         case FT_LV_COMP:
 787                 printf(", comp ");
 788                 litputs(fmt->f_comp->c_name);
 789                 if (fmt->f_comp->c_type)
 790                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 791                 if (fmt->f_comp->c_flags)
 792                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 793                 break;
 794
 795         case FT_LV_SEC:
 796         case FT_LV_MIN:
 797         case FT_LV_HOUR:
 798         case FT_LV_MDAY:
 799         case FT_LV_MON:
 800         case FT_LS_MONTH:
 801         case FT_LS_LMONTH:
 802         case FT_LS_ZONE:
 803         case FT_LV_YEAR:
 804         case FT_LV_WDAY:
 805         case FT_LS_DAY:
 806         case FT_LS_WEEKDAY:
 807         case FT_LV_YDAY:
 808         case FT_LV_ZONE:
 809         case FT_LV_CLOCK:
 810         case FT_LV_RCLOCK:
 811         case FT_LV_DAYF:
 812         case FT_LV_ZONEF:
 813         case FT_LV_DST:
 814         case FT_LS_822DATE:
 815         case FT_LS_PRETTY:
 816         case FT_LOCALDATE:
 817         case FT_GMTDATE:
 818         case FT_PARSEDATE:
 819                 printf(", c_name ");
 820                 litputs(fmt->f_comp->c_name);
 821                 if (fmt->f_comp->c_type)
 822                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 823                 if (fmt->f_comp->c_flags)
 824                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 825                 break;
 826
 827         case FT_LS_ADDR:
 828         case FT_LS_PERS:
 829         case FT_LS_MBOX:
 830         case FT_LS_HOST:
 831         case FT_LS_PATH:
 832         case FT_LS_GNAME:
 833         case FT_LS_NOTE:
 834         case FT_LS_822ADDR:
 835         case FT_LV_HOSTTYPE:
 836         case FT_LV_INGRPF:
 837         case FT_LV_NOHOSTF:
 838         case FT_LS_FRIENDLY:
 839         case FT_PARSEADDR:
 840         case FT_MYMBOX:
 841         case FT_GETMYMBOX:
 842         case FT_GETMYADDR:
 843                 printf(", c_name ");
 844                 litputs(fmt->f_comp->c_name);
 845                 if (fmt->f_comp->c_type)
 846                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 847                 if (fmt->f_comp->c_flags)
 848                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 849                 break;
 850
 851         case FT_COMPF:
 852                 printf(", width %d, fill '", fmt->f_width);
 853                 litputc(fmt->f_fill);
 854                 printf("' name ");
 855                 litputs(fmt->f_comp->c_name);
 856                 if (fmt->f_comp->c_type)
 857                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 858                 if (fmt->f_comp->c_flags)
 859                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 860                 break;
 861
 862         case FT_STRF:
 863         case FT_NUMF:
 864                 printf(", width %d, fill '", fmt->f_width);
 865                 litputc(fmt->f_fill);
 866                 putchar('\'');
 867                 break;
 868
 869         case FT_LIT:
 870 #ifdef FT_LIT_FORCE
 871         case FT_LIT_FORCE:
 872 #endif
 873                 putchar(' ');
 874                 litputs(fmt->f_text);
 875                 break;
 876
 877         case FT_LITF:
 878                 printf(", width %d, fill '", fmt->f_width);
 879                 litputc(fmt->f_fill);
 880                 printf("' ");
 881                 litputs(fmt->f_text);
 882                 break;
 883
 884         case FT_CHAR:
 885                 putchar(' ');
 886                 putchar('\'');
 887                 litputc(fmt->f_char);
 888                 putchar('\'');
 889                 break;
 890
 891
 892         case FT_IF_S:
 893         case FT_IF_S_NULL:
 894         case FT_IF_MATCH:
 895         case FT_IF_AMATCH:
 896                 printf(" continue else goto");
 897         case FT_GOTO:
 898                 i = findlabel(fmt + fmt->f_skip);
 899                 printf(" L%d", i);
 900                 break;
 901
 902         case FT_IF_V_EQ:
 903         case FT_IF_V_NE:
 904         case FT_IF_V_GT:
 905                 i = findlabel(fmt + fmt->f_skip);
 906                 printf(" %d continue else goto L%d", fmt->f_value, i);
 907                 break;
 908
 909         case FT_V_EQ:
 910         case FT_V_NE:
 911         case FT_V_GT:
 912         case FT_LV_LIT:
 913         case FT_LV_PLUS_L:
 914         case FT_LV_MINUS_L:
 915         case FT_LV_MULTIPLY_L:
 916         case FT_LV_DIVIDE_L:
 917         case FT_LV_MODULO_L:
 918                 printf(" value %d", fmt->f_value);
 919                 break;
 920
 921         case FT_LS_LIT:
 922                 printf(" str ");
 923                 litputs(fmt->f_text);
 924                 break;
 925
 926         case FT_LS_GETENV:
 927                 printf(" getenv ");
 928                 litputs(fmt->f_text);
 929                 break;
 930
 931         case FT_LS_DECODECOMP:
 932                 printf(", comp ");
 933                 litputs(fmt->f_comp->c_name);
 934                 break;
 935
 936         case FT_LS_DECODE:
 937                 break;
 938
 939         case FT_LS_TRIM:
 940                 printf(", width %d", fmt->f_width);
 941                 break;
 942
 943         case FT_LV_DAT:
 944                 printf(", value dat[%d]", fmt->f_value);
 945                 break;
 946         }
 947         putchar('\n');
 948 }
 949
 950 /*
 951  * Iterate over all instructions and assign labels to the targets of
 952  * branch statements
 953  */
 954
 955 static void
 956 initlabels(struct format *fmth)
 957 {
 958         struct format *fmt, *addr;
 959         int i;
 960
 961         /* Assign labels */
 962         for (fmt = fmth; fmt; ++fmt) {
 963                 i = fmt->f_type;
 964                 if (i == FT_IF_S ||
 965                     i == FT_IF_S_NULL ||
 966                     i == FT_IF_V_EQ ||
 967                     i == FT_IF_V_NE ||
 968                     i == FT_IF_V_GT ||
 969                     i == FT_IF_MATCH ||
 970                     i == FT_IF_AMATCH ||
 971                     i == FT_GOTO) {
 972                         addr = fmt + fmt->f_skip;
 973                         if (findlabel(addr) < 0)
 974                                 assignlabel(addr);
 975                 }
 976                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 977                         break;
 978         }
 979 }
 980
 981
 982 static int
 983 findlabel(struct format *addr)
 984 {
 985         int i;
 986
 987         for (i = 0; i < lused; ++i)
 988                 if (addr == lvec[i])
 989                         return(i);
 990         return(-1);
 991 }
 992
 993 static void
 994 assignlabel(struct format *addr)
 995 {
 996         if (lused >= lallocated) {
 997                 lallocated += 64;
 998                 lvec = (struct format **)
 999                         mh_xrealloc(lvec, sizeof(struct format *) * lallocated);
1000         }
1001
1002         lvec[lused++] = addr;
1003 }
1004
1005 static char *
1006 f_typestr(int t)
1007 {
1008         static char buf[32];
1009
1010         switch (t) {
1011         case FT_COMP: return("COMP");
1012         case FT_COMPF: return("COMPF");
1013         case FT_LIT: return("LIT");
1014         case FT_LITF: return("LITF");
1015 #ifdef  FT_LIT_FORCE
1016         case FT_LIT_FORCE: return("LIT_FORCE");
1017 #endif
1018         case FT_CHAR: return("CHAR");
1019         case FT_NUM: return("NUM");
1020         case FT_NUMF: return("NUMF");
1021         case FT_STR: return("STR");
1022         case FT_STRF: return("STRF");
1023         case FT_STRFW: return("STRFW");
1024         case FT_PUTADDR: return("PUTADDR");
1025         case FT_STRLIT: return("STRLIT");
1026         case FT_STRLITZ: return("STRLITZ");
1027         case FT_LS_COMP: return("LS_COMP");
1028         case FT_LS_LIT: return("LS_LIT");
1029         case FT_LS_GETENV: return("LS_GETENV");
1030         case FT_LS_DECODECOMP: return("LS_DECODECOMP");
1031         case FT_LS_DECODE: return("LS_DECODE");
1032         case FT_LS_TRIM: return("LS_TRIM");
1033         case FT_LV_COMP: return("LV_COMP");
1034         case FT_LV_COMPFLAG: return("LV_COMPFLAG");
1035         case FT_LV_LIT: return("LV_LIT");
1036         case FT_LV_DAT: return("LV_DAT");
1037         case FT_LV_STRLEN: return("LV_STRLEN");
1038         case FT_LV_PLUS_L: return("LV_PLUS_L");
1039         case FT_LV_MINUS_L: return("LV_MINUS_L");
1040         case FT_LV_MULTIPLY_L: return("LV_MULTIPLY_L");
1041         case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
1042         case FT_LV_MODULO_L: return("LV_MODULO_L");
1043         case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
1044         case FT_LS_MONTH: return("LS_MONTH");
1045         case FT_LS_LMONTH: return("LS_LMONTH");
1046         case FT_LS_ZONE: return("LS_ZONE");
1047         case FT_LS_DAY: return("LS_DAY");
1048         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
1049         case FT_LS_822DATE: return("LS_822DATE");
1050         case FT_LS_PRETTY: return("LS_PRETTY");
1051         case FT_LV_SEC: return("LV_SEC");
1052         case FT_LV_MIN: return("LV_MIN");
1053         case FT_LV_HOUR: return("LV_HOUR");
1054         case FT_LV_MDAY: return("LV_MDAY");
1055         case FT_LV_MON: return("LV_MON");
1056         case FT_LV_YEAR: return("LV_YEAR");
1057         case FT_LV_YDAY: return("LV_YDAY");
1058         case FT_LV_WDAY: return("LV_WDAY");
1059         case FT_LV_ZONE: return("LV_ZONE");
1060         case FT_LV_CLOCK: return("LV_CLOCK");
1061         case FT_LV_RCLOCK: return("LV_RCLOCK");
1062         case FT_LV_DAYF: return("LV_DAYF");
1063         case FT_LV_DST: return("LV_DST");
1064         case FT_LV_ZONEF: return("LV_ZONEF");
1065         case FT_LS_ADDR: return("LS_ADDR");
1066         case FT_LS_PERS: return("LS_PERS");
1067         case FT_LS_MBOX: return("LS_MBOX");
1068         case FT_LS_HOST: return("LS_HOST");
1069         case FT_LS_PATH: return("LS_PATH");
1070         case FT_LS_GNAME: return("LS_GNAME");
1071         case FT_LS_NOTE: return("LS_NOTE");
1072         case FT_LS_822ADDR: return("LS_822ADDR");
1073         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
1074         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
1075         case FT_LV_INGRPF: return("LV_INGRPF");
1076         case FT_LS_UNQUOTE: return("LS_UNQUOTE");
1077         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
1078         case FT_LOCALDATE: return("LOCALDATE");
1079         case FT_GMTDATE: return("GMTDATE");
1080         case FT_PARSEDATE: return("PARSEDATE");
1081         case FT_PARSEADDR: return("PARSEADDR");
1082         case FT_FORMATADDR: return("FORMATADDR");
1083         case FT_CONCATADDR: return("CONCATADDR");
1084         case FT_MYMBOX: return("MYMBOX");
1085         case FT_GETMYMBOX: return("GETMYMBOX");
1086         case FT_GETMYADDR: return("GETMYADDR");
1087 #ifdef  FT_ADDTOSEQ
1088         case FT_ADDTOSEQ: return("ADDTOSEQ");
1089 #endif
1090         case FT_SAVESTR: return("SAVESTR");
1091 #ifdef  FT_PAUSE
1092         case FT_PAUSE: return ("PAUSE");
1093 #endif
1094         case FT_DONE: return("DONE");
1095         case FT_NOP: return("NOP");
1096         case FT_GOTO: return("GOTO");
1097         case FT_IF_S_NULL: return("IF_S_NULL");
1098         case FT_IF_S: return("IF_S");
1099         case FT_IF_V_EQ: return("IF_V_EQ");
1100         case FT_IF_V_NE: return("IF_V_NE");
1101         case FT_IF_V_GT: return("IF_V_GT");
1102         case FT_IF_MATCH: return("IF_MATCH");
1103         case FT_IF_AMATCH: return("IF_AMATCH");
1104         case FT_S_NULL: return("S_NULL");
1105         case FT_S_NONNULL: return("S_NONNULL");
1106         case FT_V_EQ: return("V_EQ");
1107         case FT_V_NE: return("V_NE");
1108         case FT_V_GT: return("V_GT");
1109         case FT_V_MATCH: return("V_MATCH");
1110         case FT_V_AMATCH: return("V_AMATCH");
1111         default:
1112                 snprintf(buf, sizeof(buf), "/* ??? #%d */", t);
1113                 return(buf);
1114         }
1115 }
1116
1117 static char *
1118 c_typestr(int t)
1119 {
1120         static char buf[64];
1121
1122         snprintb(buf, sizeof(buf), t, CT_BITS);
1123         return(buf);
1124 }
1125
1126 static char *
1127 c_flagsstr(int t)
1128 {
1129         static char buf[64];
1130
1131         snprintb(buf, sizeof(buf), t, CF_BITS);
1132         return(buf);
1133 }
1134
1135 static void
1136 litputs(const char *s)
1137 {
1138         if (s) {
1139                 putc('"', stdout);
1140                 while (*s)
1141                         litputc(*s++);
1142                 putc('"', stdout);
1143         } else
1144                 fputs("<nil>", stdout);
1145 }
1146
1147 static void
1148 litputc(char c)
1149 {
1150         if (c & ~ 0177) {
1151                 printf("\\x%02x", (unsigned char) c);
1152         } else if (c < 0x20 || c == 0177) {
1153                 if (c == '\b') {
1154                         putc('\\', stdout);
1155                         putc('b', stdout);
1156                 } else if (c == '\f') {
1157                         putc('\\', stdout);
1158                         putc('f', stdout);
1159                 } else if (c == '\n') {
1160                         putc('\\', stdout);
1161                         putc('n', stdout);
1162                 } else if (c == '\r') {
1163                         putc('\\', stdout);
1164                         putc('r', stdout);
1165                 } else if (c == '\t') {
1166                         putc('\\', stdout);
1167                         putc('t', stdout);
1168                 } else {
1169                         putc('^', stdout);
1170                         putc(c ^ 0x40, stdout); /* DEL to ?, others to alpha */
1171                 }
1172         } else
1173                 putc(c, stdout);
1174 }
1175
1176 /*
1177  * Routines/code to support the duplicate address suppression code, adapted
1178  * from replsbr.c
1179  */
1180
1181 static char *buf;               /* our current working buffer */
1182 static char *bufend;            /* end of working buffer */
1183 static char *last_dst;          /* buf ptr at end of last call */
1184 static unsigned int bufsiz=0;   /* current size of buf */
1185
1186 #define BUFINCR 512             /* how much to expand buf when if fills */
1187
1188 #define CPY(s) { cp = (s); while ((*dst++ = *cp++)) ; --dst; }
1189
1190 /*
1191  * check if there's enough room in buf for str.
1192  * add more mem if needed
1193  */
1194 #define CHECKMEM(str) \
1195             if ((len = strlen (str)) >= bufend - dst) {\
1196                 int i = dst - buf;\
1197                 int n = last_dst - buf;\
1198                 bufsiz += ((dst + len - bufend) / BUFINCR + 1) * BUFINCR;\
1199                 buf = mh_xrealloc (buf, bufsiz);\
1200                 dst = buf + i;\
1201                 last_dst = buf + n;\
1202                 bufend = buf + bufsiz;\
1203             }
1204
1205
1206 /*
1207  * These are versions of similar routines from replsbr.c; the purpose is
1208  * to suppress duplicate addresses from being added to a list when building
1209  * up addresses for the %(formataddr) format function.  This is used by
1210  * repl to prevent duplicate addresses from being added to the "to" line.
1211  * See replsbr.c for more information.
1212  *
1213  * We can't use the functions in replsbr.c directly because they are slightly
1214  * different and depend on the rest of replsbr.c
1215  */
1216 static char *
1217 test_formataddr (char *orig, char *str)
1218 {
1219     int len;
1220     char error[BUFSIZ];
1221     int isgroup;
1222     char *dst;
1223     char *cp;
1224     char *sp;
1225     struct mailname *mp = NULL;
1226
1227     /* if we don't have a buffer yet, get one */
1228     if (bufsiz == 0) {
1229         buf = mh_xmalloc (BUFINCR);
1230         last_dst = buf;         /* XXX */
1231         bufsiz = BUFINCR - 6;  /* leave some slop */
1232         bufend = buf + bufsiz;
1233     }
1234     /*
1235      * If "orig" points to our buffer we can just pick up where we
1236      * left off.  Otherwise we have to copy orig into our buffer.
1237      */
1238     if (orig == buf)
1239         dst = last_dst;
1240     else if (!orig || !*orig) {
1241         dst = buf;
1242         *dst = '\0';
1243     } else {
1244         dst = last_dst;         /* XXX */
1245         CHECKMEM (orig);
1246         CPY (orig);
1247     }
1248
1249     /* concatenate all the new addresses onto 'buf' */
1250     for (isgroup = 0; (cp = getname (str)); ) {
1251         if ((mp = getm (cp, NULL, 0, error, sizeof(error))) == NULL) {
1252             fprintf(stderr, "bad address \"%s\" -- %s\n", cp, error);
1253             continue;
1254         }
1255         if (isgroup && (mp->m_gname || !mp->m_ingrp)) {
1256             *dst++ = ';';
1257             isgroup = 0;
1258         }
1259         if (insert (mp)) {
1260             /* if we get here we're going to add an address */
1261             if (dst != buf) {
1262                 *dst++ = ',';
1263                 *dst++ = ' ';
1264             }
1265             if (mp->m_gname) {
1266                 CHECKMEM (mp->m_gname);
1267                 CPY (mp->m_gname);
1268                 isgroup++;
1269             }
1270             sp = adrformat (mp);
1271             CHECKMEM (sp);
1272             CPY (sp);
1273         }
1274     }
1275
1276     if (isgroup)
1277         *dst++ = ';';
1278
1279     *dst = '\0';
1280     last_dst = dst;
1281     return (buf);
1282 }
1283
1284
1285 /*
1286  * The companion to test_formataddr(); it behaves the same way, except doesn't
1287  * do duplicate address detection.
1288  */
1289 static char *
1290 test_concataddr(char *orig, char *str)
1291 {
1292     char *cp;
1293
1294     nodupcheck = 1;
1295     cp = test_formataddr(orig, str);
1296     nodupcheck = 0;
1297     return cp;
1298 }
1299
1300 static int
1301 insert (struct mailname *np)
1302 {
1303     struct mailname *mp;
1304
1305     if (nodupcheck)
1306         return 1;
1307
1308     if (np->m_mbox == NULL)
1309         return 0;
1310
1311     for (mp = &mq; mp->m_next; mp = mp->m_next) {
1312         if (!strcasecmp (np->m_host ? np->m_host : "",
1313                          mp->m_next->m_host ? mp->m_next->m_host : "") &&
1314             !strcasecmp (np->m_mbox ? np->m_mbox : "",
1315                          mp->m_next->m_mbox ? mp->m_next->m_mbox : ""))
1316             return 0;
1317     }
1318     if (!ccme && ismymbox (np))
1319         return 0;
1320
1321     mp->m_next = np;
1322
1323     return 1;
1324 }
1325
1326 /*
1327  * Reset our duplicate address list
1328  */
1329
1330 void
1331 mlistfree(void)
1332 {
1333     struct mailname *mp, *mp2;
1334
1335     for (mp = mq.m_next; mp; mp = mp2) {
1336         mp2 = mp->m_next;
1337         mnfree(mp);
1338     }
1339 }