git.marmaro.de Git - mmh/blob - uip/fmtdump.c

   1 /*
   2 ** fmtdump.c -- compile format file and dump out instructions
   3 **
   4 ** This code is Copyright (c) 2002, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <h/fmt_scan.h>
  11 #include <h/fmt_compile.h>
  12 #include <h/scansbr.h>
  13
  14 static struct swit switches[] = {
  15 #define FORMSW  0
  16         { "form formatfile", 0 },
  17 #define FMTSW  1
  18         { "format string", 5 },
  19 #define VERSIONSW  2
  20         { "version", 0 },
  21 #define HELPSW  3
  22         { "help", 0 },
  23         { NULL, 0 }
  24 };
  25
  26 /* for assignlabel */
  27 static struct format *lvec[128];
  28 static int lused = 0;
  29
  30 /*
  31 ** static prototypes
  32 */
  33 static void fmt_dump (struct format *);
  34 static void dumpone(struct format *);
  35 static int findlabel(struct format *);
  36 static void assignlabel(struct format *);
  37 static char *f_typestr(int);
  38 static char *c_typestr(int);
  39 static char *c_flagsstr(int);
  40 static void litputs(char *);
  41 static void litputc(char);
  42
  43
  44 int
  45 main (int argc, char **argv)
  46 {
  47         int ncomps;
  48         char *cp, *form = NULL, *format = NULL;
  49         char buf[BUFSIZ], *nfs, **argp, **arguments;
  50         struct format *fmt;
  51
  52 #ifdef LOCALE
  53         setlocale(LC_ALL, "");
  54 #endif
  55         invo_name = r1bindex (argv[0], '/');
  56
  57         /* read user profile/context */
  58         context_read();
  59
  60         arguments = getarguments (invo_name, argc, argv, 1);
  61         argp = arguments;
  62
  63         while ((cp = *argp++)) {
  64                 if (*cp == '-') {
  65                         switch (smatch (++cp, switches)) {
  66                                 case AMBIGSW:
  67                                         ambigsw (cp, switches);
  68                                         done (1);
  69                                 case UNKWNSW:
  70                                         adios (NULL, "-%s unknown", cp);
  71
  72                                 case HELPSW:
  73                                         snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
  74                                         print_help (buf, switches, 1);
  75                                         done (1);
  76                                 case VERSIONSW:
  77                                         print_version(invo_name);
  78                                         done (1);
  79
  80                                 case FORMSW:
  81                                         if (!(form = *argp++) || *form == '-')
  82                                                 adios (NULL, "missing argument to %s", argp[-2]);
  83                                         format = NULL;
  84                                         continue;
  85                                 case FMTSW:
  86                                         if (!(format = *argp++) || *format == '-')
  87                                                 adios (NULL, "missing argument to %s", argp[-2]);
  88                                         form = NULL;
  89                                         continue;
  90
  91                         }
  92                 }
  93                 if (form)
  94                         adios (NULL, "only one form at a time!");
  95                 else
  96                         form = cp;
  97         }
  98
  99         /*
 100         ** Get new format string.  Must be before chdir().
 101         */
 102         nfs = new_fs (form, format, FORMAT);
 103         ncomps = fmt_compile(nfs, &fmt);
 104
 105         fmt_dump(fmt);
 106         done(0);
 107         return 1;
 108 }
 109
 110 static void
 111 fmt_dump (struct format *fmth)
 112 {
 113                 int i;
 114                 register struct format *fmt, *addr;
 115
 116                 /* Assign labels */
 117                 for (fmt = fmth; fmt; ++fmt) {
 118                                 i = fmt->f_type;
 119                                 if (i == FT_IF_S ||
 120                                         i == FT_IF_S_NULL ||
 121                                         i == FT_IF_V_EQ ||
 122                                         i == FT_IF_V_NE ||
 123                                         i == FT_IF_V_GT ||
 124                                         i == FT_IF_MATCH ||
 125                                         i == FT_IF_AMATCH ||
 126                                         i == FT_GOTO) {
 127                                                 addr = fmt + fmt->f_skip;
 128                                                 if (findlabel(addr) < 0)
 129                                                                 assignlabel(addr);
 130                                 }
 131                                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 132                                                 break;
 133                 }
 134
 135                 /* Dump them out! */
 136                 for (fmt = fmth; fmt; ++fmt) {
 137                                 dumpone(fmt);
 138                                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 139                                                 break;
 140                 }
 141 }
 142
 143 static void
 144 dumpone(struct format *fmt)
 145 {
 146                 register int i;
 147
 148                 if ((i = findlabel(fmt)) >= 0)
 149                                 printf("L%d:", i);
 150                 putchar('\t');
 151
 152                 fputs(f_typestr((int)fmt->f_type), stdout);
 153
 154                 switch (fmt->f_type) {
 155
 156                 case FT_COMP:
 157                 case FT_LS_COMP:
 158                 case FT_LV_COMPFLAG:
 159                 case FT_LV_COMP:
 160                                 printf(", comp ");
 161                                 litputs(fmt->f_comp->c_name);
 162                                 if (fmt->f_comp->c_type)
 163                                                 printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 164                                 if (fmt->f_comp->c_flags)
 165                                                 printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 166                                 break;
 167
 168                 case FT_LV_SEC:
 169                 case FT_LV_MIN:
 170                 case FT_LV_HOUR:
 171                 case FT_LV_MDAY:
 172                 case FT_LV_MON:
 173                 case FT_LS_MONTH:
 174                 case FT_LS_LMONTH:
 175                 case FT_LS_ZONE:
 176                 case FT_LV_YEAR:
 177                 case FT_LV_WDAY:
 178                 case FT_LS_DAY:
 179                 case FT_LS_WEEKDAY:
 180                 case FT_LV_YDAY:
 181                 case FT_LV_ZONE:
 182                 case FT_LV_CLOCK:
 183                 case FT_LV_RCLOCK:
 184                 case FT_LV_DAYF:
 185                 case FT_LV_ZONEF:
 186                 case FT_LV_DST:
 187                 case FT_LS_822DATE:
 188                 case FT_LS_PRETTY:
 189                 case FT_LOCALDATE:
 190                 case FT_GMTDATE:
 191                 case FT_PARSEDATE:
 192                                 printf(", c_name ");
 193                                 litputs(fmt->f_comp->c_name);
 194                                 if (fmt->f_comp->c_type)
 195                                                 printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 196                                 if (fmt->f_comp->c_flags)
 197                                                 printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 198                                 break;
 199
 200                 case FT_LS_ADDR:
 201                 case FT_LS_PERS:
 202                 case FT_LS_MBOX:
 203                 case FT_LS_HOST:
 204                 case FT_LS_PATH:
 205                 case FT_LS_GNAME:
 206                 case FT_LS_NOTE:
 207                 case FT_LS_822ADDR:
 208                 case FT_LV_HOSTTYPE:
 209                 case FT_LV_INGRPF:
 210                 case FT_LV_NOHOSTF:
 211                 case FT_LS_FRIENDLY:
 212                 case FT_PARSEADDR:
 213                 case FT_MYMBOX:
 214                                 printf(", c_name ");
 215                                 litputs(fmt->f_comp->c_name);
 216                                 if (fmt->f_comp->c_type)
 217                                                 printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 218                                 if (fmt->f_comp->c_flags)
 219                                                 printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 220                                 break;
 221
 222                 case FT_COMPF:
 223                                 printf(", width %d, fill '", fmt->f_width);
 224                                 litputc(fmt->f_fill);
 225                                 printf("' name ");
 226                                 litputs(fmt->f_comp->c_name);
 227                                 if (fmt->f_comp->c_type)
 228                                                 printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 229                                 if (fmt->f_comp->c_flags)
 230                                                 printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 231                                 break;
 232
 233                 case FT_STRF:
 234                 case FT_NUMF:
 235                                 printf(", width %d, fill '", fmt->f_width);
 236                                 litputc(fmt->f_fill);
 237                                 putchar('\'');
 238                                 break;
 239
 240                 case FT_LIT:
 241 #ifdef FT_LIT_FORCE
 242                 case FT_LIT_FORCE:
 243 #endif
 244                                 putchar(' ');
 245                                 litputs(fmt->f_text);
 246                                 break;
 247
 248                 case FT_LITF:
 249                                 printf(", width %d, fill '", fmt->f_width);
 250                                 litputc(fmt->f_fill);
 251                                 printf("' ");
 252                                 litputs(fmt->f_text);
 253                                 break;
 254
 255                 case FT_CHAR:
 256                                 putchar(' ');
 257                                 putchar('\'');
 258                                 litputc(fmt->f_char);
 259                                 putchar('\'');
 260                                 break;
 261
 262
 263                 case FT_IF_S:
 264                 case FT_IF_S_NULL:
 265                 case FT_IF_MATCH:
 266                 case FT_IF_AMATCH:
 267                                 printf(" continue else goto");
 268                 case FT_GOTO:
 269                                 i = findlabel(fmt + fmt->f_skip);
 270                                 printf(" L%d", i);
 271                                 break;
 272
 273                 case FT_IF_V_EQ:
 274                 case FT_IF_V_NE:
 275                 case FT_IF_V_GT:
 276                                 i = findlabel(fmt + fmt->f_skip);
 277                                 printf(" %d continue else goto L%d", fmt->f_value, i);
 278                                 break;
 279
 280                 case FT_V_EQ:
 281                 case FT_V_NE:
 282                 case FT_V_GT:
 283                 case FT_LV_LIT:
 284                 case FT_LV_PLUS_L:
 285                 case FT_LV_MINUS_L:
 286                 case FT_LV_DIVIDE_L:
 287                 case FT_LV_MODULO_L:
 288                                 printf(" value %d", fmt->f_value);
 289                                 break;
 290
 291                 case FT_LS_LIT:
 292                                 printf(" str ");
 293                                 litputs(fmt->f_text);
 294                                 break;
 295
 296                 case FT_LS_GETENV:
 297                                 printf(" getenv ");
 298                                 litputs(fmt->f_text);
 299                                 break;
 300
 301                 case FT_LS_DECODECOMP:
 302                                 printf(", comp ");
 303                                 litputs(fmt->f_comp->c_name);
 304                                 break;
 305
 306                 case FT_LS_DECODE:
 307                                 break;
 308
 309                 case FT_LS_TRIM:
 310                                 printf(", width %d", fmt->f_width);
 311                                 break;
 312
 313                 case FT_LV_DAT:
 314                                 printf(", value dat[%d]", fmt->f_value);
 315                                 break;
 316                 }
 317                 putchar('\n');
 318 }
 319
 320 static int
 321 findlabel(struct format *addr)
 322 {
 323                 register int i;
 324
 325                 for (i = 0; i < lused; ++i)
 326                                 if (addr == lvec[i])
 327                                                 return(i);
 328                 return(-1);
 329 }
 330
 331 static void
 332 assignlabel(struct format *addr)
 333 {
 334                 lvec[lused++] = addr;
 335 }
 336
 337 static char *
 338 f_typestr(int t)
 339 {
 340                 static char buf[32];
 341
 342                 switch (t) {
 343                 case FT_COMP: return("COMP");
 344                 case FT_COMPF: return("COMPF");
 345                 case FT_LIT: return("LIT");
 346                 case FT_LITF: return("LITF");
 347 #ifdef FT_LIT_FORCE
 348                 case FT_LIT_FORCE: return("LIT_FORCE");
 349 #endif
 350                 case FT_CHAR: return("CHAR");
 351                 case FT_NUM: return("NUM");
 352                 case FT_NUMF: return("NUMF");
 353                 case FT_STR: return("STR");
 354                 case FT_STRF: return("STRF");
 355                 case FT_STRFW: return("STRFW");
 356                 case FT_PUTADDR: return("PUTADDR");
 357                 case FT_LS_COMP: return("LS_COMP");
 358                 case FT_LS_LIT: return("LS_LIT");
 359                 case FT_LS_GETENV: return("LS_GETENV");
 360                 case FT_LS_DECODECOMP: return("FT_LS_DECODECOMP");
 361                 case FT_LS_DECODE: return("FT_LS_DECODE");
 362                 case FT_LS_TRIM: return("LS_TRIM");
 363                 case FT_LV_COMP: return("LV_COMP");
 364                 case FT_LV_COMPFLAG: return("LV_COMPFLAG");
 365                 case FT_LV_LIT: return("LV_LIT");
 366                 case FT_LV_DAT: return("LV_DAT");
 367                 case FT_LV_STRLEN: return("LV_STRLEN");
 368                 case FT_LV_PLUS_L: return("LV_PLUS_L");
 369                 case FT_LV_MINUS_L: return("LV_MINUS_L");
 370                 case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
 371                 case FT_LV_MODULO_L: return("LV_MODULO_L");
 372                 case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
 373                 case FT_LS_MONTH: return("LS_MONTH");
 374                 case FT_LS_LMONTH: return("LS_LMONTH");
 375                 case FT_LS_ZONE: return("LS_ZONE");
 376                 case FT_LS_DAY: return("LS_DAY");
 377                 case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 378                 case FT_LS_822DATE: return("LS_822DATE");
 379                 case FT_LS_PRETTY: return("LS_PRETTY");
 380                 case FT_LV_SEC: return("LV_SEC");
 381                 case FT_LV_MIN: return("LV_MIN");
 382                 case FT_LV_HOUR: return("LV_HOUR");
 383                 case FT_LV_MDAY: return("LV_MDAY");
 384                 case FT_LV_MON: return("LV_MON");
 385                 case FT_LV_YEAR: return("LV_YEAR");
 386                 case FT_LV_YDAY: return("LV_YDAY");
 387                 case FT_LV_WDAY: return("LV_WDAY");
 388                 case FT_LV_ZONE: return("LV_ZONE");
 389                 case FT_LV_CLOCK: return("LV_CLOCK");
 390                 case FT_LV_RCLOCK: return("LV_RCLOCK");
 391                 case FT_LV_DAYF: return("LV_DAYF");
 392                 case FT_LV_DST: return("LV_DST");
 393                 case FT_LV_ZONEF: return("LV_ZONEF");
 394                 case FT_LS_ADDR: return("LS_ADDR");
 395                 case FT_LS_PERS: return("LS_PERS");
 396                 case FT_LS_MBOX: return("LS_MBOX");
 397                 case FT_LS_HOST: return("LS_HOST");
 398                 case FT_LS_PATH: return("LS_PATH");
 399                 case FT_LS_GNAME: return("LS_GNAME");
 400                 case FT_LS_NOTE: return("LS_NOTE");
 401                 case FT_LS_822ADDR: return("LS_822ADDR");
 402                 case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 403                 case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 404                 case FT_LV_INGRPF: return("LV_INGRPF");
 405                 case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 406                 case FT_LOCALDATE: return("LOCALDATE");
 407                 case FT_GMTDATE: return("GMTDATE");
 408                 case FT_PARSEDATE: return("PARSEDATE");
 409                 case FT_PARSEADDR: return("PARSEADDR");
 410                 case FT_FORMATADDR: return("FORMATADDR");
 411                 case FT_MYMBOX: return("MYMBOX");
 412 #ifdef FT_ADDTOSEQ
 413                 case FT_ADDTOSEQ: return("ADDTOSEQ");
 414 #endif
 415                 case FT_SAVESTR: return("SAVESTR");
 416 #ifdef FT_PAUSE
 417                 case FT_PAUSE: return ("PAUSE");
 418 #endif
 419                 case FT_DONE: return("DONE");
 420                 case FT_NOP: return("NOP");
 421                 case FT_GOTO: return("GOTO");
 422                 case FT_IF_S_NULL: return("IF_S_NULL");
 423                 case FT_IF_S: return("IF_S");
 424                 case FT_IF_V_EQ: return("IF_V_EQ");
 425                 case FT_IF_V_NE: return("IF_V_NE");
 426                 case FT_IF_V_GT: return("IF_V_GT");
 427                 case FT_IF_MATCH: return("IF_MATCH");
 428                 case FT_IF_AMATCH: return("IF_AMATCH");
 429                 case FT_S_NULL: return("S_NULL");
 430                 case FT_S_NONNULL: return("S_NONNULL");
 431                 case FT_V_EQ: return("V_EQ");
 432                 case FT_V_NE: return("V_NE");
 433                 case FT_V_GT: return("V_GT");
 434                 case FT_V_MATCH: return("V_MATCH");
 435                 case FT_V_AMATCH: return("V_AMATCH");
 436                 default:
 437                                 printf(buf, "/* ??? #%d */", t);
 438                                 return(buf);
 439                 }
 440 }
 441
 442 #define FNORD(v, s) if (t & (v)) { \
 443                 if (i++ > 0) \
 444                                 strcat(buf, "|"); \
 445                 strcat(buf, s); }
 446
 447 static char *
 448 c_typestr(int t)
 449 {
 450                 register int i;
 451                 static char buf[64];
 452
 453                 buf[0] = '\0';
 454                 if (t & ~(CT_ADDR|CT_DATE))
 455                                 printf(buf, "0x%x ", t);
 456                 strcat(buf, "<");
 457                 i = 0;
 458                 FNORD(CT_ADDR, "ADDR");
 459                 FNORD(CT_DATE, "DATE");
 460                 strcat(buf, ">");
 461                 return(buf);
 462 }
 463
 464 static char *
 465 c_flagsstr(int t)
 466 {
 467                 register int i;
 468                 static char buf[64];
 469
 470                 buf[0] = '\0';
 471                 if (t & ~(CF_TRUE|CF_PARSED|CF_DATEFAB))
 472                                 printf(buf, "0x%x ", t);
 473                 strcat(buf, "<");
 474                 i = 0;
 475                 FNORD(CF_TRUE, "TRUE");
 476                 FNORD(CF_PARSED, "PARSED");
 477                 FNORD(CF_DATEFAB, "DATEFAB");
 478                 strcat(buf, ">");
 479                 return(buf);
 480 }
 481 #undef FNORD
 482
 483 static void
 484 litputs(char *s)
 485 {
 486                 if (s) {
 487                                 putc('"', stdout);
 488                                 while (*s)
 489                                                 litputc(*s++);
 490                                 putc('"', stdout);
 491                 } else
 492                                 fputs("<nil>", stdout);
 493 }
 494
 495 static void
 496 litputc(char c)
 497 {
 498                 if (c & ~ 0177) {
 499                                 putc('M', stdout);
 500                                 putc('-', stdout);
 501                                 c &= 0177;
 502                 }
 503                 if (c < 0x20 || c == 0177) {
 504                                 if (c == '\b') {
 505                                                 putc('\\', stdout);
 506                                                 putc('b', stdout);
 507                                 } else if (c == '\f') {
 508                                                 putc('\\', stdout);
 509                                                 putc('f', stdout);
 510                                 } else if (c == '\n') {
 511                                                 putc('\\', stdout);
 512                                                 putc('n', stdout);
 513                                 } else if (c == '\r') {
 514                                                 putc('\\', stdout);
 515                                                 putc('r', stdout);
 516                                 } else if (c == '\t') {
 517                                                 putc('\\', stdout);
 518                                                 putc('t', stdout);
 519                                 } else {
 520                                                 putc('^', stdout);
 521                                                 putc(c ^ 0x40, stdout);
 522                                                 /* DEL to ?, others to alpha */
 523                                 }
 524                 } else
 525                                 putc(c, stdout);
 526 }