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

   1
   2 /*
   3  * fmtdump.c -- compile format file and dump out instructions
   4  *
   5  * This code is Copyright (c) 2002, 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/scansbr.h>
  14
  15 #define FMTDUMP_SWITCHES \
  16     X("form formatfile", 0, FORMSW) \
  17     X("format string", 5, FMTSW) \
  18     X("version", 0, VERSIONSW) \
  19     X("help", 0, HELPSW) \
  20
  21 #define X(sw, minchars, id) id,
  22 DEFINE_SWITCH_ENUM(FMTDUMP);
  23 #undef X
  24
  25 #define X(sw, minchars, id) { sw, minchars, id },
  26 DEFINE_SWITCH_ARRAY(FMTDUMP, switches);
  27 #undef X
  28
  29 /* for assignlabel */
  30 static struct format *lvec[128];
  31 static int lused = 0;
  32
  33 /*
  34  * static prototypes
  35  */
  36 static void fmt_dump (struct format *);
  37 static void dumpone(struct format *);
  38 static int findlabel(struct format *);
  39 static void assignlabel(struct format *);
  40 static char *f_typestr(int);
  41 static char *c_typestr(int);
  42 static char *c_flagsstr(int);
  43 static void litputs(char *);
  44 static void litputc(char);
  45
  46
  47 int
  48 main (int argc, char **argv)
  49 {
  50     char *cp, *form = NULL, *format = NULL;
  51     char buf[BUFSIZ], *nfs, **argp, **arguments;
  52     struct format *fmt;
  53
  54     if (nmh_init(argv[0], 1)) { return 1; }
  55
  56     arguments = getarguments (invo_name, argc, argv, 1);
  57     argp = arguments;
  58
  59     while ((cp = *argp++)) {
  60         if (*cp == '-') {
  61             switch (smatch (++cp, switches)) {
  62                 case AMBIGSW:
  63                     ambigsw (cp, switches);
  64                     done (1);
  65                 case UNKWNSW:
  66                     adios (NULL, "-%s unknown", cp);
  67
  68                 case HELPSW:
  69                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
  70                     print_help (buf, switches, 1);
  71                     done (0);
  72                 case VERSIONSW:
  73                     print_version(invo_name);
  74                     done (0);
  75
  76                 case FORMSW:
  77                     if (!(form = *argp++) || *form == '-')
  78                         adios (NULL, "missing argument to %s", argp[-2]);
  79                     format = NULL;
  80                     continue;
  81                 case FMTSW:
  82                     if (!(format = *argp++) || *format == '-')
  83                         adios (NULL, "missing argument to %s", argp[-2]);
  84                     form = NULL;
  85                     continue;
  86
  87             }
  88         }
  89         if (form)
  90             adios (NULL, "only one form at a time!");
  91         else
  92             form = cp;
  93     }
  94
  95     /*
  96      * Get new format string.  Must be before chdir().
  97      */
  98     nfs = new_fs (form, format, FORMAT);
  99     (void) fmt_compile(nfs, &fmt, 1);
 100
 101     fmt_dump(fmt);
 102
 103     fmt_free(fmt, 1);
 104
 105     done(0);
 106     return 1;
 107 }
 108
 109 static void
 110 fmt_dump (struct format *fmth)
 111 {
 112         int i;
 113         register struct format *fmt, *addr;
 114
 115         /* Assign labels */
 116         for (fmt = fmth; fmt; ++fmt) {
 117                 i = fmt->f_type;
 118                 if (i == FT_IF_S ||
 119                     i == FT_IF_S_NULL ||
 120                     i == FT_IF_V_EQ ||
 121                     i == FT_IF_V_NE ||
 122                     i == FT_IF_V_GT ||
 123                     i == FT_IF_MATCH ||
 124                     i == FT_IF_AMATCH ||
 125                     i == FT_GOTO) {
 126                         addr = fmt + fmt->f_skip;
 127                         if (findlabel(addr) < 0)
 128                                 assignlabel(addr);
 129                 }
 130                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 131                         break;
 132         }
 133
 134         /* Dump them out! */
 135         for (fmt = fmth; fmt; ++fmt) {
 136                 dumpone(fmt);
 137                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 138                         break;
 139         }
 140 }
 141
 142 static void
 143 dumpone(struct format *fmt)
 144 {
 145         register int i;
 146
 147         if ((i = findlabel(fmt)) >= 0)
 148                 printf("L%d:", i);
 149         putchar('\t');
 150
 151         fputs(f_typestr((int)fmt->f_type), stdout);
 152
 153         switch (fmt->f_type) {
 154
 155         case FT_COMP:
 156         case FT_LS_COMP:
 157         case FT_LV_COMPFLAG:
 158         case FT_LV_COMP:
 159                 printf(", comp ");
 160                 litputs(fmt->f_comp->c_name);
 161                 if (fmt->f_comp->c_type)
 162                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 163                 if (fmt->f_comp->c_flags)
 164                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 165                 break;
 166
 167         case FT_LV_SEC:
 168         case FT_LV_MIN:
 169         case FT_LV_HOUR:
 170         case FT_LV_MDAY:
 171         case FT_LV_MON:
 172         case FT_LS_MONTH:
 173         case FT_LS_LMONTH:
 174         case FT_LS_ZONE:
 175         case FT_LV_YEAR:
 176         case FT_LV_WDAY:
 177         case FT_LS_DAY:
 178         case FT_LS_WEEKDAY:
 179         case FT_LV_YDAY:
 180         case FT_LV_ZONE:
 181         case FT_LV_CLOCK:
 182         case FT_LV_RCLOCK:
 183         case FT_LV_DAYF:
 184         case FT_LV_ZONEF:
 185         case FT_LV_DST:
 186         case FT_LS_822DATE:
 187         case FT_LS_PRETTY:
 188         case FT_LOCALDATE:
 189         case FT_GMTDATE:
 190         case FT_PARSEDATE:
 191                 printf(", c_name ");
 192                 litputs(fmt->f_comp->c_name);
 193                 if (fmt->f_comp->c_type)
 194                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 195                 if (fmt->f_comp->c_flags)
 196                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 197                 break;
 198
 199         case FT_LS_ADDR:
 200         case FT_LS_PERS:
 201         case FT_LS_MBOX:
 202         case FT_LS_HOST:
 203         case FT_LS_PATH:
 204         case FT_LS_GNAME:
 205         case FT_LS_NOTE:
 206         case FT_LS_822ADDR:
 207         case FT_LV_HOSTTYPE:
 208         case FT_LV_INGRPF:
 209         case FT_LV_NOHOSTF:
 210         case FT_LS_FRIENDLY:
 211         case FT_PARSEADDR:
 212         case FT_MYMBOX:
 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         case FT_GOTO:
 268                 i = findlabel(fmt + fmt->f_skip);
 269                 printf(" L%d", i);
 270                 break;
 271
 272         case FT_IF_V_EQ:
 273         case FT_IF_V_NE:
 274         case FT_IF_V_GT:
 275                 i = findlabel(fmt + fmt->f_skip);
 276                 printf(" %d continue else goto L%d", fmt->f_value, i);
 277                 break;
 278
 279         case FT_V_EQ:
 280         case FT_V_NE:
 281         case FT_V_GT:
 282         case FT_LV_LIT:
 283         case FT_LV_PLUS_L:
 284         case FT_LV_MINUS_L:
 285         case FT_LV_DIVIDE_L:
 286         case FT_LV_MODULO_L:
 287                 printf(" value %d", fmt->f_value);
 288                 break;
 289
 290         case FT_LS_LIT:
 291                 printf(" str ");
 292                 litputs(fmt->f_text);
 293                 break;
 294
 295         case FT_LS_GETENV:
 296                 printf(" getenv ");
 297                 litputs(fmt->f_text);
 298                 break;
 299
 300         case FT_LS_DECODECOMP:
 301                 printf(", comp ");
 302                 litputs(fmt->f_comp->c_name);
 303                 break;
 304
 305         case FT_LS_DECODE:
 306                 break;
 307
 308         case FT_LS_TRIM:
 309                 printf(", width %d", fmt->f_width);
 310                 break;
 311
 312         case FT_LV_DAT:
 313                 printf(", value dat[%d]", fmt->f_value);
 314                 break;
 315         }
 316         putchar('\n');
 317 }
 318
 319 static int
 320 findlabel(struct format *addr)
 321 {
 322         register int i;
 323
 324         for (i = 0; i < lused; ++i)
 325                 if (addr == lvec[i])
 326                         return(i);
 327         return(-1);
 328 }
 329
 330 static void
 331 assignlabel(struct format *addr)
 332 {
 333         lvec[lused++] = addr;
 334 }
 335
 336 static char *
 337 f_typestr(int t)
 338 {
 339         static char buf[32];
 340
 341         switch (t) {
 342         case FT_COMP: return("COMP");
 343         case FT_COMPF: return("COMPF");
 344         case FT_LIT: return("LIT");
 345         case FT_LITF: return("LITF");
 346 #ifdef  FT_LIT_FORCE
 347         case FT_LIT_FORCE: return("LIT_FORCE");
 348 #endif
 349         case FT_CHAR: return("CHAR");
 350         case FT_NUM: return("NUM");
 351         case FT_NUMF: return("NUMF");
 352         case FT_STR: return("STR");
 353         case FT_STRF: return("STRF");
 354         case FT_STRFW: return("STRFW");
 355         case FT_PUTADDR: return("PUTADDR");
 356         case FT_STRLIT: return("STRLIT");
 357         case FT_STRLITZ: return("STRLITZ");
 358         case FT_LS_COMP: return("LS_COMP");
 359         case FT_LS_LIT: return("LS_LIT");
 360         case FT_LS_GETENV: return("LS_GETENV");
 361         case FT_LS_DECODECOMP: return("FT_LS_DECODECOMP");
 362         case FT_LS_DECODE: return("FT_LS_DECODE");
 363         case FT_LS_TRIM: return("LS_TRIM");
 364         case FT_LV_COMP: return("LV_COMP");
 365         case FT_LV_COMPFLAG: return("LV_COMPFLAG");
 366         case FT_LV_LIT: return("LV_LIT");
 367         case FT_LV_DAT: return("LV_DAT");
 368         case FT_LV_STRLEN: return("LV_STRLEN");
 369         case FT_LV_PLUS_L: return("LV_PLUS_L");
 370         case FT_LV_MINUS_L: return("LV_MINUS_L");
 371         case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
 372         case FT_LV_MODULO_L: return("LV_MODULO_L");
 373         case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
 374         case FT_LS_KILO: return("LS_KILO");
 375         case FT_LS_KIBI: return("LS_KIBI");
 376         case FT_LS_MONTH: return("LS_MONTH");
 377         case FT_LS_LMONTH: return("LS_LMONTH");
 378         case FT_LS_ZONE: return("LS_ZONE");
 379         case FT_LS_DAY: return("LS_DAY");
 380         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 381         case FT_LS_822DATE: return("LS_822DATE");
 382         case FT_LS_PRETTY: return("LS_PRETTY");
 383         case FT_LV_SEC: return("LV_SEC");
 384         case FT_LV_MIN: return("LV_MIN");
 385         case FT_LV_HOUR: return("LV_HOUR");
 386         case FT_LV_MDAY: return("LV_MDAY");
 387         case FT_LV_MON: return("LV_MON");
 388         case FT_LV_YEAR: return("LV_YEAR");
 389         case FT_LV_YDAY: return("LV_YDAY");
 390         case FT_LV_WDAY: return("LV_WDAY");
 391         case FT_LV_ZONE: return("LV_ZONE");
 392         case FT_LV_CLOCK: return("LV_CLOCK");
 393         case FT_LV_RCLOCK: return("LV_RCLOCK");
 394         case FT_LV_DAYF: return("LV_DAYF");
 395         case FT_LV_DST: return("LV_DST");
 396         case FT_LV_ZONEF: return("LV_ZONEF");
 397         case FT_LS_ADDR: return("LS_ADDR");
 398         case FT_LS_PERS: return("LS_PERS");
 399         case FT_LS_MBOX: return("LS_MBOX");
 400         case FT_LS_HOST: return("LS_HOST");
 401         case FT_LS_PATH: return("LS_PATH");
 402         case FT_LS_GNAME: return("LS_GNAME");
 403         case FT_LS_NOTE: return("LS_NOTE");
 404         case FT_LS_822ADDR: return("LS_822ADDR");
 405         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 406         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 407         case FT_LV_INGRPF: return("LV_INGRPF");
 408         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 409         case FT_LOCALDATE: return("LOCALDATE");
 410         case FT_GMTDATE: return("GMTDATE");
 411         case FT_PARSEDATE: return("PARSEDATE");
 412         case FT_PARSEADDR: return("PARSEADDR");
 413         case FT_FORMATADDR: return("FORMATADDR");
 414         case FT_CONCATADDR: return("CONCATADDR");
 415         case FT_MYMBOX: return("MYMBOX");
 416         case FT_SAVESTR: return("SAVESTR");
 417 #ifdef  FT_PAUSE
 418         case FT_PAUSE: return ("PAUSE");
 419 #endif
 420         case FT_DONE: return("DONE");
 421         case FT_NOP: return("NOP");
 422         case FT_GOTO: return("GOTO");
 423         case FT_IF_S_NULL: return("IF_S_NULL");
 424         case FT_IF_S: return("IF_S");
 425         case FT_IF_V_EQ: return("IF_V_EQ");
 426         case FT_IF_V_NE: return("IF_V_NE");
 427         case FT_IF_V_GT: return("IF_V_GT");
 428         case FT_IF_MATCH: return("IF_MATCH");
 429         case FT_IF_AMATCH: return("IF_AMATCH");
 430         case FT_S_NULL: return("S_NULL");
 431         case FT_S_NONNULL: return("S_NONNULL");
 432         case FT_V_EQ: return("V_EQ");
 433         case FT_V_NE: return("V_NE");
 434         case FT_V_GT: return("V_GT");
 435         case FT_V_MATCH: return("V_MATCH");
 436         case FT_V_AMATCH: return("V_AMATCH");
 437         default:
 438                 printf(buf, "/* ??? #%d */", t);
 439                 return(buf);
 440         }
 441 }
 442
 443 #define FNORD(v, s) if (t & (v)) { \
 444         if (i++ > 0) \
 445                 strcat(buf, "|"); \
 446         strcat(buf, s); }
 447
 448 static char *
 449 c_typestr(int t)
 450 {
 451         register int i;
 452         static char buf[64];
 453
 454         buf[0] = '\0';
 455         if (t & ~(CT_ADDR|CT_DATE))
 456                 printf(buf, "0x%x ", t);
 457         strcat(buf, "<");
 458         i = 0;
 459         FNORD(CT_ADDR, "ADDR");
 460         FNORD(CT_DATE, "DATE");
 461         strcat(buf, ">");
 462         return(buf);
 463 }
 464
 465 static char *
 466 c_flagsstr(int t)
 467 {
 468         register int i;
 469         static char buf[64];
 470
 471         buf[0] = '\0';
 472         if (t & ~(CF_TRUE|CF_PARSED|CF_DATEFAB|CF_TRIMMED))
 473                 printf(buf, "0x%x ", t);
 474         strcat(buf, "<");
 475         i = 0;
 476         FNORD(CF_TRUE, "TRUE");
 477         FNORD(CF_PARSED, "PARSED");
 478         FNORD(CF_DATEFAB, "DATEFAB");
 479         FNORD(CF_TRIMMED, "TRIMMED");
 480         strcat(buf, ">");
 481         return(buf);
 482 }
 483 #undef FNORD
 484
 485 static void
 486 litputs(char *s)
 487 {
 488         if (s) {
 489                 putc('"', stdout);
 490                 while (*s)
 491                         litputc(*s++);
 492                 putc('"', stdout);
 493         } else
 494                 fputs("<nil>", stdout);
 495 }
 496
 497 static void
 498 litputc(char c)
 499 {
 500         if (c & ~ 0177) {
 501                 putc('M', stdout);
 502                 putc('-', stdout);
 503                 c &= 0177;
 504         }
 505         if (c < 0x20 || c == 0177) {
 506                 if (c == '\b') {
 507                         putc('\\', stdout);
 508                         putc('b', stdout);
 509                 } else if (c == '\f') {
 510                         putc('\\', stdout);
 511                         putc('f', stdout);
 512                 } else if (c == '\n') {
 513                         putc('\\', stdout);
 514                         putc('n', stdout);
 515                 } else if (c == '\r') {
 516                         putc('\\', stdout);
 517                         putc('r', stdout);
 518                 } else if (c == '\t') {
 519                         putc('\\', stdout);
 520                         putc('t', stdout);
 521                 } else {
 522                         putc('^', stdout);
 523                         putc(c ^ 0x40, stdout); /* DEL to ?, others to alpha */
 524                 }
 525         } else
 526                 putc(c, stdout);
 527 }