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

   1 /* fmtdump.c -- compile format file and dump out instructions
   2  *
   3  * This code is Copyright (c) 2002, 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/scansbr.h>
  12
  13 #define FMTDUMP_SWITCHES \
  14     X("form formatfile", 0, FORMSW) \
  15     X("format string", 5, FMTSW) \
  16     X("version", 0, VERSIONSW) \
  17     X("help", 0, HELPSW) \
  18
  19 #define X(sw, minchars, id) id,
  20 DEFINE_SWITCH_ENUM(FMTDUMP);
  21 #undef X
  22
  23 #define X(sw, minchars, id) { sw, minchars, id },
  24 DEFINE_SWITCH_ARRAY(FMTDUMP, switches);
  25 #undef X
  26
  27 /* for assignlabel */
  28 static struct format *lvec[128];
  29 static int lused = 0;
  30
  31 /*
  32  * static prototypes
  33  */
  34 static void fmt_dump (struct format *);
  35 static void dumpone(struct format *);
  36 static int findlabel(struct format *);
  37 static void assignlabel(struct format *);
  38 static char *f_typestr(int);
  39 static char *c_typestr(int);
  40 static char *c_flagsstr(int);
  41 static void litputs(char *);
  42 static void litputc(char);
  43
  44
  45 int
  46 main (int argc, char **argv)
  47 {
  48     char *cp, *form = NULL, *format = NULL;
  49     char buf[BUFSIZ], *nfs, **argp, **arguments;
  50     struct format *fmt;
  51
  52     if (nmh_init(argv[0], 2)) { return 1; }
  53
  54     arguments = getarguments (invo_name, argc, argv, 1);
  55     argp = arguments;
  56
  57     while ((cp = *argp++)) {
  58         if (*cp == '-') {
  59             switch (smatch (++cp, switches)) {
  60                 case AMBIGSW:
  61                     ambigsw (cp, switches);
  62                     done (1);
  63                 case UNKWNSW:
  64                     adios (NULL, "-%s unknown", cp);
  65
  66                 case HELPSW:
  67                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
  68                     print_help (buf, switches, 1);
  69                     done (0);
  70                 case VERSIONSW:
  71                     print_version(invo_name);
  72                     done (0);
  73
  74                 case FORMSW:
  75                     if (!(form = *argp++) || *form == '-')
  76                         adios (NULL, "missing argument to %s", argp[-2]);
  77                     format = NULL;
  78                     continue;
  79                 case FMTSW:
  80                     if (!(format = *argp++) || *format == '-')
  81                         adios (NULL, "missing argument to %s", argp[-2]);
  82                     form = NULL;
  83                     continue;
  84
  85             }
  86         }
  87         if (form)
  88             adios (NULL, "only one form at a time!");
  89         else
  90             form = cp;
  91     }
  92
  93     /*
  94      * Get new format string.  Must be before chdir().
  95      */
  96     nfs = new_fs (form, format, FORMAT);
  97     (void) fmt_compile(nfs, &fmt, 1);
  98
  99     fmt_dump(fmt);
 100
 101     fmt_free(fmt, 1);
 102
 103     done(0);
 104     return 1;
 105 }
 106
 107 static void
 108 fmt_dump (struct format *fmth)
 109 {
 110         int i;
 111         struct format *fmt, *addr;
 112
 113         /* Assign labels */
 114         for (fmt = fmth; fmt; ++fmt) {
 115                 i = fmt->f_type;
 116                 if (i == FT_IF_S ||
 117                     i == FT_IF_S_NULL ||
 118                     i == FT_IF_V_EQ ||
 119                     i == FT_IF_V_NE ||
 120                     i == FT_IF_V_GT ||
 121                     i == FT_IF_MATCH ||
 122                     i == FT_IF_AMATCH ||
 123                     i == FT_GOTO) {
 124                         addr = fmt + fmt->f_skip;
 125                         if (findlabel(addr) < 0)
 126                                 assignlabel(addr);
 127                 }
 128                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 129                         break;
 130         }
 131
 132         /* Dump them out! */
 133         for (fmt = fmth; fmt; ++fmt) {
 134                 dumpone(fmt);
 135                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 136                         break;
 137         }
 138 }
 139
 140 static void
 141 dumpone(struct format *fmt)
 142 {
 143         int i;
 144
 145         if ((i = findlabel(fmt)) >= 0)
 146                 printf("L%d:", i);
 147         putchar('\t');
 148
 149         fputs(f_typestr((int)fmt->f_type), stdout);
 150
 151         switch (fmt->f_type) {
 152
 153         case FT_COMP:
 154         case FT_LS_COMP:
 155         case FT_LV_COMPFLAG:
 156         case FT_LV_COMP:
 157                 printf(", comp ");
 158                 litputs(fmt->f_comp->c_name);
 159                 if (fmt->f_comp->c_type)
 160                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 161                 if (fmt->f_comp->c_flags)
 162                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 163                 break;
 164
 165         case FT_LV_SEC:
 166         case FT_LV_MIN:
 167         case FT_LV_HOUR:
 168         case FT_LV_MDAY:
 169         case FT_LV_MON:
 170         case FT_LS_MONTH:
 171         case FT_LS_LMONTH:
 172         case FT_LS_ZONE:
 173         case FT_LV_YEAR:
 174         case FT_LV_WDAY:
 175         case FT_LS_DAY:
 176         case FT_LS_WEEKDAY:
 177         case FT_LV_YDAY:
 178         case FT_LV_ZONE:
 179         case FT_LV_CLOCK:
 180         case FT_LV_RCLOCK:
 181         case FT_LV_DAYF:
 182         case FT_LV_ZONEF:
 183         case FT_LV_DST:
 184         case FT_LS_822DATE:
 185         case FT_LS_PRETTY:
 186         case FT_LOCALDATE:
 187         case FT_GMTDATE:
 188         case FT_PARSEDATE:
 189                 printf(", c_name ");
 190                 litputs(fmt->f_comp->c_name);
 191                 if (fmt->f_comp->c_type)
 192                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 193                 if (fmt->f_comp->c_flags)
 194                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 195                 break;
 196
 197         case FT_LS_ADDR:
 198         case FT_LS_PERS:
 199         case FT_LS_MBOX:
 200         case FT_LS_HOST:
 201         case FT_LS_PATH:
 202         case FT_LS_GNAME:
 203         case FT_LS_NOTE:
 204         case FT_LS_822ADDR:
 205         case FT_LV_HOSTTYPE:
 206         case FT_LV_INGRPF:
 207         case FT_LV_NOHOSTF:
 208         case FT_LS_FRIENDLY:
 209         case FT_PARSEADDR:
 210         case FT_MYMBOX:
 211         case FT_GETMYMBOX:
 212         case FT_GETMYADDR:
 213                 printf(", c_name ");
 214                 litputs(fmt->f_comp->c_name);
 215                 if (fmt->f_comp->c_type)
 216                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 217                 if (fmt->f_comp->c_flags)
 218                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 219                 break;
 220
 221         case FT_COMPF:
 222                 printf(", width %d, fill '", fmt->f_width);
 223                 litputc(fmt->f_fill);
 224                 printf("' name ");
 225                 litputs(fmt->f_comp->c_name);
 226                 if (fmt->f_comp->c_type)
 227                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 228                 if (fmt->f_comp->c_flags)
 229                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 230                 break;
 231
 232         case FT_STRF:
 233         case FT_NUMF:
 234                 printf(", width %d, fill '", fmt->f_width);
 235                 litputc(fmt->f_fill);
 236                 putchar('\'');
 237                 break;
 238
 239         case FT_LIT:
 240 #ifdef FT_LIT_FORCE
 241         case FT_LIT_FORCE:
 242 #endif
 243                 putchar(' ');
 244                 litputs(fmt->f_text);
 245                 break;
 246
 247         case FT_LITF:
 248                 printf(", width %d, fill '", fmt->f_width);
 249                 litputc(fmt->f_fill);
 250                 printf("' ");
 251                 litputs(fmt->f_text);
 252                 break;
 253
 254         case FT_CHAR:
 255                 putchar(' ');
 256                 putchar('\'');
 257                 litputc(fmt->f_char);
 258                 putchar('\'');
 259                 break;
 260
 261
 262         case FT_IF_S:
 263         case FT_IF_S_NULL:
 264         case FT_IF_MATCH:
 265         case FT_IF_AMATCH:
 266                 printf(" continue else goto");
 267                 /* FALLTHRU */
 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_MULTIPLY_L:
 287         case FT_LV_DIVIDE_L:
 288         case FT_LV_MODULO_L:
 289                 printf(" value %d", fmt->f_value);
 290                 break;
 291
 292         case FT_LS_LIT:
 293                 printf(" str ");
 294                 litputs(fmt->f_text);
 295                 break;
 296
 297         case FT_LS_GETENV:
 298                 printf(" getenv ");
 299                 litputs(fmt->f_text);
 300                 break;
 301
 302         case FT_LS_DECODECOMP:
 303                 printf(", comp ");
 304                 litputs(fmt->f_comp->c_name);
 305                 break;
 306
 307         case FT_LS_DECODE:
 308                 break;
 309
 310         case FT_LS_TRIM:
 311                 printf(", width %d", fmt->f_width);
 312                 break;
 313
 314         case FT_LV_DAT:
 315                 printf(", value dat[%d]", fmt->f_value);
 316                 break;
 317         }
 318         putchar('\n');
 319 }
 320
 321 static int
 322 findlabel(struct format *addr)
 323 {
 324         int i;
 325
 326         for (i = 0; i < lused; ++i)
 327                 if (addr == lvec[i])
 328                         return(i);
 329         return(-1);
 330 }
 331
 332 static void
 333 assignlabel(struct format *addr)
 334 {
 335         lvec[lused++] = addr;
 336 }
 337
 338 static char *
 339 f_typestr(int t)
 340 {
 341         static char buf[32];
 342
 343         switch (t) {
 344         case FT_COMP: return("COMP");
 345         case FT_COMPF: return("COMPF");
 346         case FT_LIT: return("LIT");
 347         case FT_LITF: return("LITF");
 348 #ifdef  FT_LIT_FORCE
 349         case FT_LIT_FORCE: return("LIT_FORCE");
 350 #endif
 351         case FT_CHAR: return("CHAR");
 352         case FT_NUM: return("NUM");
 353         case FT_NUMF: return("NUMF");
 354         case FT_STR: return("STR");
 355         case FT_STRF: return("STRF");
 356         case FT_STRFW: return("STRFW");
 357         case FT_PUTADDR: return("PUTADDR");
 358         case FT_STRLIT: return("STRLIT");
 359         case FT_STRLITZ: return("STRLITZ");
 360         case FT_LS_COMP: return("LS_COMP");
 361         case FT_LS_LIT: return("LS_LIT");
 362         case FT_LS_GETENV: return("LS_GETENV");
 363         case FT_LS_DECODECOMP: return("FT_LS_DECODECOMP");
 364         case FT_LS_DECODE: return("FT_LS_DECODE");
 365         case FT_LS_TRIM: return("LS_TRIM");
 366         case FT_LV_COMP: return("LV_COMP");
 367         case FT_LV_COMPFLAG: return("LV_COMPFLAG");
 368         case FT_LV_LIT: return("LV_LIT");
 369         case FT_LV_DAT: return("LV_DAT");
 370         case FT_LV_STRLEN: return("LV_STRLEN");
 371         case FT_LV_PLUS_L: return("LV_PLUS_L");
 372         case FT_LV_MINUS_L: return("LV_MINUS_L");
 373         case FT_LV_MULTIPLY_L: return("LV_MULTIPLY_L");
 374         case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
 375         case FT_LV_MODULO_L: return("LV_MODULO_L");
 376         case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
 377         case FT_LS_KILO: return("LS_KILO");
 378         case FT_LS_KIBI: return("LS_KIBI");
 379         case FT_LS_MONTH: return("LS_MONTH");
 380         case FT_LS_LMONTH: return("LS_LMONTH");
 381         case FT_LS_ZONE: return("LS_ZONE");
 382         case FT_LS_DAY: return("LS_DAY");
 383         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 384         case FT_LS_822DATE: return("LS_822DATE");
 385         case FT_LS_PRETTY: return("LS_PRETTY");
 386         case FT_LV_SEC: return("LV_SEC");
 387         case FT_LV_MIN: return("LV_MIN");
 388         case FT_LV_HOUR: return("LV_HOUR");
 389         case FT_LV_MDAY: return("LV_MDAY");
 390         case FT_LV_MON: return("LV_MON");
 391         case FT_LV_YEAR: return("LV_YEAR");
 392         case FT_LV_YDAY: return("LV_YDAY");
 393         case FT_LV_WDAY: return("LV_WDAY");
 394         case FT_LV_ZONE: return("LV_ZONE");
 395         case FT_LV_CLOCK: return("LV_CLOCK");
 396         case FT_LV_RCLOCK: return("LV_RCLOCK");
 397         case FT_LV_DAYF: return("LV_DAYF");
 398         case FT_LV_DST: return("LV_DST");
 399         case FT_LV_ZONEF: return("LV_ZONEF");
 400         case FT_LS_ADDR: return("LS_ADDR");
 401         case FT_LS_PERS: return("LS_PERS");
 402         case FT_LS_MBOX: return("LS_MBOX");
 403         case FT_LS_HOST: return("LS_HOST");
 404         case FT_LS_PATH: return("LS_PATH");
 405         case FT_LS_GNAME: return("LS_GNAME");
 406         case FT_LS_NOTE: return("LS_NOTE");
 407         case FT_LS_822ADDR: return("LS_822ADDR");
 408         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 409         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 410         case FT_LV_INGRPF: return("LV_INGRPF");
 411         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 412         case FT_LOCALDATE: return("LOCALDATE");
 413         case FT_GMTDATE: return("GMTDATE");
 414         case FT_PARSEDATE: return("PARSEDATE");
 415         case FT_PARSEADDR: return("PARSEADDR");
 416         case FT_FORMATADDR: return("FORMATADDR");
 417         case FT_CONCATADDR: return("CONCATADDR");
 418         case FT_MYMBOX: return("MYMBOX");
 419         case FT_GETMYMBOX: return("GETMYMBOX");
 420         case FT_GETMYADDR: return("GETMYADDR");
 421         case FT_SAVESTR: return("SAVESTR");
 422         case FT_PAUSE: return ("PAUSE");
 423         case FT_DONE: return("DONE");
 424         case FT_NOP: return("NOP");
 425         case FT_GOTO: return("GOTO");
 426         case FT_IF_S_NULL: return("IF_S_NULL");
 427         case FT_IF_S: return("IF_S");
 428         case FT_IF_V_EQ: return("IF_V_EQ");
 429         case FT_IF_V_NE: return("IF_V_NE");
 430         case FT_IF_V_GT: return("IF_V_GT");
 431         case FT_IF_MATCH: return("IF_MATCH");
 432         case FT_IF_AMATCH: return("IF_AMATCH");
 433         case FT_S_NULL: return("S_NULL");
 434         case FT_S_NONNULL: return("S_NONNULL");
 435         case FT_V_EQ: return("V_EQ");
 436         case FT_V_NE: return("V_NE");
 437         case FT_V_GT: return("V_GT");
 438         case FT_V_MATCH: return("V_MATCH");
 439         case FT_V_AMATCH: return("V_AMATCH");
 440         default:
 441                 printf(buf, "/* ??? #%d */", t);
 442                 return(buf);
 443         }
 444 }
 445
 446 #define FNORD(v, s) if (t & (v)) { \
 447         if (i++ > 0) \
 448                 strcat(buf, "|"); \
 449         strcat(buf, s); }
 450
 451 static char *
 452 c_typestr(int t)
 453 {
 454         int i;
 455         static char buf[64];
 456
 457         buf[0] = '\0';
 458         if (t & ~(CT_ADDR|CT_DATE))
 459                 printf(buf, "0x%x ", t);
 460         strcat(buf, "<");
 461         i = 0;
 462         FNORD(CT_ADDR, "ADDR");
 463         FNORD(CT_DATE, "DATE");
 464         strcat(buf, ">");
 465         return(buf);
 466 }
 467
 468 static char *
 469 c_flagsstr(int t)
 470 {
 471         int i;
 472         static char buf[64];
 473
 474         buf[0] = '\0';
 475         if (t & ~(CF_TRUE|CF_PARSED|CF_DATEFAB|CF_TRIMMED))
 476                 printf(buf, "0x%x ", t);
 477         strcat(buf, "<");
 478         i = 0;
 479         FNORD(CF_TRUE, "TRUE");
 480         FNORD(CF_PARSED, "PARSED");
 481         FNORD(CF_DATEFAB, "DATEFAB");
 482         FNORD(CF_TRIMMED, "TRIMMED");
 483         strcat(buf, ">");
 484         return(buf);
 485 }
 486 #undef FNORD
 487
 488 static void
 489 litputs(char *s)
 490 {
 491         if (s) {
 492                 putchar('"');
 493                 while (*s)
 494                         litputc(*s++);
 495                 putchar('"');
 496         } else
 497                 fputs("<nil>", stdout);
 498 }
 499
 500 static void
 501 litputc(char c)
 502 {
 503         if (c & ~ 0177) {
 504                 putchar('M');
 505                 putchar('-');
 506                 c &= 0177;
 507         }
 508         if (c < 0x20 || c == 0177) {
 509                 if (c == '\b') {
 510                         putchar('\\');
 511                         putchar('b');
 512                 } else if (c == '\f') {
 513                         putchar('\\');
 514                         putchar('f');
 515                 } else if (c == '\n') {
 516                         putchar('\\');
 517                         putchar('n');
 518                 } else if (c == '\r') {
 519                         putchar('\\');
 520                         putchar('r');
 521                 } else if (c == '\t') {
 522                         putchar('\\');
 523                         putchar('t');
 524                 } else {
 525                         putchar('^');
 526                         putchar(c ^ 0x40);      /* DEL to ?, others to alpha */
 527                 }
 528         } else
 529                 putchar(c);
 530 }