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         case FT_GETMYMBOX:
 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_STRLIT: return("STRLIT");
 358         case FT_STRLITZ: return("STRLITZ");
 359         case FT_LS_COMP: return("LS_COMP");
 360         case FT_LS_LIT: return("LS_LIT");
 361         case FT_LS_GETENV: return("LS_GETENV");
 362         case FT_LS_DECODECOMP: return("FT_LS_DECODECOMP");
 363         case FT_LS_DECODE: return("FT_LS_DECODE");
 364         case FT_LS_TRIM: return("LS_TRIM");
 365         case FT_LV_COMP: return("LV_COMP");
 366         case FT_LV_COMPFLAG: return("LV_COMPFLAG");
 367         case FT_LV_LIT: return("LV_LIT");
 368         case FT_LV_DAT: return("LV_DAT");
 369         case FT_LV_STRLEN: return("LV_STRLEN");
 370         case FT_LV_PLUS_L: return("LV_PLUS_L");
 371         case FT_LV_MINUS_L: return("LV_MINUS_L");
 372         case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
 373         case FT_LV_MODULO_L: return("LV_MODULO_L");
 374         case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
 375         case FT_LS_KILO: return("LS_KILO");
 376         case FT_LS_KIBI: return("LS_KIBI");
 377         case FT_LS_MONTH: return("LS_MONTH");
 378         case FT_LS_LMONTH: return("LS_LMONTH");
 379         case FT_LS_ZONE: return("LS_ZONE");
 380         case FT_LS_DAY: return("LS_DAY");
 381         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 382         case FT_LS_822DATE: return("LS_822DATE");
 383         case FT_LS_PRETTY: return("LS_PRETTY");
 384         case FT_LV_SEC: return("LV_SEC");
 385         case FT_LV_MIN: return("LV_MIN");
 386         case FT_LV_HOUR: return("LV_HOUR");
 387         case FT_LV_MDAY: return("LV_MDAY");
 388         case FT_LV_MON: return("LV_MON");
 389         case FT_LV_YEAR: return("LV_YEAR");
 390         case FT_LV_YDAY: return("LV_YDAY");
 391         case FT_LV_WDAY: return("LV_WDAY");
 392         case FT_LV_ZONE: return("LV_ZONE");
 393         case FT_LV_CLOCK: return("LV_CLOCK");
 394         case FT_LV_RCLOCK: return("LV_RCLOCK");
 395         case FT_LV_DAYF: return("LV_DAYF");
 396         case FT_LV_DST: return("LV_DST");
 397         case FT_LV_ZONEF: return("LV_ZONEF");
 398         case FT_LS_ADDR: return("LS_ADDR");
 399         case FT_LS_PERS: return("LS_PERS");
 400         case FT_LS_MBOX: return("LS_MBOX");
 401         case FT_LS_HOST: return("LS_HOST");
 402         case FT_LS_PATH: return("LS_PATH");
 403         case FT_LS_GNAME: return("LS_GNAME");
 404         case FT_LS_NOTE: return("LS_NOTE");
 405         case FT_LS_822ADDR: return("LS_822ADDR");
 406         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 407         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 408         case FT_LV_INGRPF: return("LV_INGRPF");
 409         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 410         case FT_LOCALDATE: return("LOCALDATE");
 411         case FT_GMTDATE: return("GMTDATE");
 412         case FT_PARSEDATE: return("PARSEDATE");
 413         case FT_PARSEADDR: return("PARSEADDR");
 414         case FT_FORMATADDR: return("FORMATADDR");
 415         case FT_CONCATADDR: return("CONCATADDR");
 416         case FT_MYMBOX: return("MYMBOX");
 417         case FT_GETMYMBOX: return("GETMYMBOX");
 418         case FT_SAVESTR: return("SAVESTR");
 419 #ifdef  FT_PAUSE
 420         case FT_PAUSE: return ("PAUSE");
 421 #endif
 422         case FT_DONE: return("DONE");
 423         case FT_NOP: return("NOP");
 424         case FT_GOTO: return("GOTO");
 425         case FT_IF_S_NULL: return("IF_S_NULL");
 426         case FT_IF_S: return("IF_S");
 427         case FT_IF_V_EQ: return("IF_V_EQ");
 428         case FT_IF_V_NE: return("IF_V_NE");
 429         case FT_IF_V_GT: return("IF_V_GT");
 430         case FT_IF_MATCH: return("IF_MATCH");
 431         case FT_IF_AMATCH: return("IF_AMATCH");
 432         case FT_S_NULL: return("S_NULL");
 433         case FT_S_NONNULL: return("S_NONNULL");
 434         case FT_V_EQ: return("V_EQ");
 435         case FT_V_NE: return("V_NE");
 436         case FT_V_GT: return("V_GT");
 437         case FT_V_MATCH: return("V_MATCH");
 438         case FT_V_AMATCH: return("V_AMATCH");
 439         default:
 440                 printf(buf, "/* ??? #%d */", t);
 441                 return(buf);
 442         }
 443 }
 444
 445 #define FNORD(v, s) if (t & (v)) { \
 446         if (i++ > 0) \
 447                 strcat(buf, "|"); \
 448         strcat(buf, s); }
 449
 450 static char *
 451 c_typestr(int t)
 452 {
 453         register int i;
 454         static char buf[64];
 455
 456         buf[0] = '\0';
 457         if (t & ~(CT_ADDR|CT_DATE))
 458                 printf(buf, "0x%x ", t);
 459         strcat(buf, "<");
 460         i = 0;
 461         FNORD(CT_ADDR, "ADDR");
 462         FNORD(CT_DATE, "DATE");
 463         strcat(buf, ">");
 464         return(buf);
 465 }
 466
 467 static char *
 468 c_flagsstr(int t)
 469 {
 470         register int i;
 471         static char buf[64];
 472
 473         buf[0] = '\0';
 474         if (t & ~(CF_TRUE|CF_PARSED|CF_DATEFAB|CF_TRIMMED))
 475                 printf(buf, "0x%x ", t);
 476         strcat(buf, "<");
 477         i = 0;
 478         FNORD(CF_TRUE, "TRUE");
 479         FNORD(CF_PARSED, "PARSED");
 480         FNORD(CF_DATEFAB, "DATEFAB");
 481         FNORD(CF_TRIMMED, "TRIMMED");
 482         strcat(buf, ">");
 483         return(buf);
 484 }
 485 #undef FNORD
 486
 487 static void
 488 litputs(char *s)
 489 {
 490         if (s) {
 491                 putc('"', stdout);
 492                 while (*s)
 493                         litputc(*s++);
 494                 putc('"', stdout);
 495         } else
 496                 fputs("<nil>", stdout);
 497 }
 498
 499 static void
 500 litputc(char c)
 501 {
 502         if (c & ~ 0177) {
 503                 putc('M', stdout);
 504                 putc('-', stdout);
 505                 c &= 0177;
 506         }
 507         if (c < 0x20 || c == 0177) {
 508                 if (c == '\b') {
 509                         putc('\\', stdout);
 510                         putc('b', stdout);
 511                 } else if (c == '\f') {
 512                         putc('\\', stdout);
 513                         putc('f', stdout);
 514                 } else if (c == '\n') {
 515                         putc('\\', stdout);
 516                         putc('n', stdout);
 517                 } else if (c == '\r') {
 518                         putc('\\', stdout);
 519                         putc('r', stdout);
 520                 } else if (c == '\t') {
 521                         putc('\\', stdout);
 522                         putc('t', stdout);
 523                 } else {
 524                         putc('^', stdout);
 525                         putc(c ^ 0x40, stdout); /* DEL to ?, others to alpha */
 526                 }
 527         } else
 528                 putc(c, stdout);
 529 }