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 #ifdef LOCALE
  55     setlocale(LC_ALL, "");
  56 #endif
  57     invo_name = r1bindex (argv[0], '/');
  58
  59     /* read user profile/context */
  60     context_read();
  61
  62     arguments = getarguments (invo_name, argc, argv, 1);
  63     argp = arguments;
  64
  65     while ((cp = *argp++)) {
  66         if (*cp == '-') {
  67             switch (smatch (++cp, switches)) {
  68                 case AMBIGSW:
  69                     ambigsw (cp, switches);
  70                     done (1);
  71                 case UNKWNSW:
  72                     adios (NULL, "-%s unknown", cp);
  73
  74                 case HELPSW:
  75                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
  76                     print_help (buf, switches, 1);
  77                     done (0);
  78                 case VERSIONSW:
  79                     print_version(invo_name);
  80                     done (0);
  81
  82                 case FORMSW:
  83                     if (!(form = *argp++) || *form == '-')
  84                         adios (NULL, "missing argument to %s", argp[-2]);
  85                     format = NULL;
  86                     continue;
  87                 case FMTSW:
  88                     if (!(format = *argp++) || *format == '-')
  89                         adios (NULL, "missing argument to %s", argp[-2]);
  90                     form = NULL;
  91                     continue;
  92
  93             }
  94         }
  95         if (form)
  96             adios (NULL, "only one form at a time!");
  97         else
  98             form = cp;
  99     }
 100
 101     /*
 102      * Get new format string.  Must be before chdir().
 103      */
 104     nfs = new_fs (form, format, FORMAT);
 105     (void) fmt_compile(nfs, &fmt, 1);
 106
 107     fmt_dump(fmt);
 108
 109     fmt_free(fmt, 1);
 110
 111     done(0);
 112     return 1;
 113 }
 114
 115 static void
 116 fmt_dump (struct format *fmth)
 117 {
 118         int i;
 119         register struct format *fmt, *addr;
 120
 121         /* Assign labels */
 122         for (fmt = fmth; fmt; ++fmt) {
 123                 i = fmt->f_type;
 124                 if (i == FT_IF_S ||
 125                     i == FT_IF_S_NULL ||
 126                     i == FT_IF_V_EQ ||
 127                     i == FT_IF_V_NE ||
 128                     i == FT_IF_V_GT ||
 129                     i == FT_IF_MATCH ||
 130                     i == FT_IF_AMATCH ||
 131                     i == FT_GOTO) {
 132                         addr = fmt + fmt->f_skip;
 133                         if (findlabel(addr) < 0)
 134                                 assignlabel(addr);
 135                 }
 136                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 137                         break;
 138         }
 139
 140         /* Dump them out! */
 141         for (fmt = fmth; fmt; ++fmt) {
 142                 dumpone(fmt);
 143                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 144                         break;
 145         }
 146 }
 147
 148 static void
 149 dumpone(struct format *fmt)
 150 {
 151         register int i;
 152
 153         if ((i = findlabel(fmt)) >= 0)
 154                 printf("L%d:", i);
 155         putchar('\t');
 156
 157         fputs(f_typestr((int)fmt->f_type), stdout);
 158
 159         switch (fmt->f_type) {
 160
 161         case FT_COMP:
 162         case FT_LS_COMP:
 163         case FT_LV_COMPFLAG:
 164         case FT_LV_COMP:
 165                 printf(", comp ");
 166                 litputs(fmt->f_comp->c_name);
 167                 if (fmt->f_comp->c_type)
 168                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 169                 if (fmt->f_comp->c_flags)
 170                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 171                 break;
 172
 173         case FT_LV_SEC:
 174         case FT_LV_MIN:
 175         case FT_LV_HOUR:
 176         case FT_LV_MDAY:
 177         case FT_LV_MON:
 178         case FT_LS_MONTH:
 179         case FT_LS_LMONTH:
 180         case FT_LS_ZONE:
 181         case FT_LV_YEAR:
 182         case FT_LV_WDAY:
 183         case FT_LS_DAY:
 184         case FT_LS_WEEKDAY:
 185         case FT_LV_YDAY:
 186         case FT_LV_ZONE:
 187         case FT_LV_CLOCK:
 188         case FT_LV_RCLOCK:
 189         case FT_LV_DAYF:
 190         case FT_LV_ZONEF:
 191         case FT_LV_DST:
 192         case FT_LS_822DATE:
 193         case FT_LS_PRETTY:
 194         case FT_LOCALDATE:
 195         case FT_GMTDATE:
 196         case FT_PARSEDATE:
 197                 printf(", c_name ");
 198                 litputs(fmt->f_comp->c_name);
 199                 if (fmt->f_comp->c_type)
 200                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 201                 if (fmt->f_comp->c_flags)
 202                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 203                 break;
 204
 205         case FT_LS_ADDR:
 206         case FT_LS_PERS:
 207         case FT_LS_MBOX:
 208         case FT_LS_HOST:
 209         case FT_LS_PATH:
 210         case FT_LS_GNAME:
 211         case FT_LS_NOTE:
 212         case FT_LS_822ADDR:
 213         case FT_LV_HOSTTYPE:
 214         case FT_LV_INGRPF:
 215         case FT_LV_NOHOSTF:
 216         case FT_LS_FRIENDLY:
 217         case FT_PARSEADDR:
 218         case FT_MYMBOX:
 219                 printf(", c_name ");
 220                 litputs(fmt->f_comp->c_name);
 221                 if (fmt->f_comp->c_type)
 222                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 223                 if (fmt->f_comp->c_flags)
 224                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 225                 break;
 226
 227         case FT_COMPF:
 228                 printf(", width %d, fill '", fmt->f_width);
 229                 litputc(fmt->f_fill);
 230                 printf("' name ");
 231                 litputs(fmt->f_comp->c_name);
 232                 if (fmt->f_comp->c_type)
 233                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 234                 if (fmt->f_comp->c_flags)
 235                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 236                 break;
 237
 238         case FT_STRF:
 239         case FT_NUMF:
 240                 printf(", width %d, fill '", fmt->f_width);
 241                 litputc(fmt->f_fill);
 242                 putchar('\'');
 243                 break;
 244
 245         case FT_LIT:
 246 #ifdef FT_LIT_FORCE
 247         case FT_LIT_FORCE:
 248 #endif
 249                 putchar(' ');
 250                 litputs(fmt->f_text);
 251                 break;
 252
 253         case FT_LITF:
 254                 printf(", width %d, fill '", fmt->f_width);
 255                 litputc(fmt->f_fill);
 256                 printf("' ");
 257                 litputs(fmt->f_text);
 258                 break;
 259
 260         case FT_CHAR:
 261                 putchar(' ');
 262                 putchar('\'');
 263                 litputc(fmt->f_char);
 264                 putchar('\'');
 265                 break;
 266
 267
 268         case FT_IF_S:
 269         case FT_IF_S_NULL:
 270         case FT_IF_MATCH:
 271         case FT_IF_AMATCH:
 272                 printf(" continue else goto");
 273         case FT_GOTO:
 274                 i = findlabel(fmt + fmt->f_skip);
 275                 printf(" L%d", i);
 276                 break;
 277
 278         case FT_IF_V_EQ:
 279         case FT_IF_V_NE:
 280         case FT_IF_V_GT:
 281                 i = findlabel(fmt + fmt->f_skip);
 282                 printf(" %d continue else goto L%d", fmt->f_value, i);
 283                 break;
 284
 285         case FT_V_EQ:
 286         case FT_V_NE:
 287         case FT_V_GT:
 288         case FT_LV_LIT:
 289         case FT_LV_PLUS_L:
 290         case FT_LV_MINUS_L:
 291         case FT_LV_DIVIDE_L:
 292         case FT_LV_MODULO_L:
 293                 printf(" value %d", fmt->f_value);
 294                 break;
 295
 296         case FT_LS_LIT:
 297                 printf(" str ");
 298                 litputs(fmt->f_text);
 299                 break;
 300
 301         case FT_LS_GETENV:
 302                 printf(" getenv ");
 303                 litputs(fmt->f_text);
 304                 break;
 305
 306         case FT_LS_DECODECOMP:
 307                 printf(", comp ");
 308                 litputs(fmt->f_comp->c_name);
 309                 break;
 310
 311         case FT_LS_DECODE:
 312                 break;
 313
 314         case FT_LS_TRIM:
 315                 printf(", width %d", fmt->f_width);
 316                 break;
 317
 318         case FT_LV_DAT:
 319                 printf(", value dat[%d]", fmt->f_value);
 320                 break;
 321         }
 322         putchar('\n');
 323 }
 324
 325 static int
 326 findlabel(struct format *addr)
 327 {
 328         register int i;
 329
 330         for (i = 0; i < lused; ++i)
 331                 if (addr == lvec[i])
 332                         return(i);
 333         return(-1);
 334 }
 335
 336 static void
 337 assignlabel(struct format *addr)
 338 {
 339         lvec[lused++] = addr;
 340 }
 341
 342 static char *
 343 f_typestr(int t)
 344 {
 345         static char buf[32];
 346
 347         switch (t) {
 348         case FT_COMP: return("COMP");
 349         case FT_COMPF: return("COMPF");
 350         case FT_LIT: return("LIT");
 351         case FT_LITF: return("LITF");
 352 #ifdef  FT_LIT_FORCE
 353         case FT_LIT_FORCE: return("LIT_FORCE");
 354 #endif
 355         case FT_CHAR: return("CHAR");
 356         case FT_NUM: return("NUM");
 357         case FT_NUMF: return("NUMF");
 358         case FT_STR: return("STR");
 359         case FT_STRF: return("STRF");
 360         case FT_STRFW: return("STRFW");
 361         case FT_PUTADDR: return("PUTADDR");
 362         case FT_STRLIT: return("STRLIT");
 363         case FT_STRLITZ: return("STRLITZ");
 364         case FT_LS_COMP: return("LS_COMP");
 365         case FT_LS_LIT: return("LS_LIT");
 366         case FT_LS_GETENV: return("LS_GETENV");
 367         case FT_LS_DECODECOMP: return("FT_LS_DECODECOMP");
 368         case FT_LS_DECODE: return("FT_LS_DECODE");
 369         case FT_LS_TRIM: return("LS_TRIM");
 370         case FT_LV_COMP: return("LV_COMP");
 371         case FT_LV_COMPFLAG: return("LV_COMPFLAG");
 372         case FT_LV_LIT: return("LV_LIT");
 373         case FT_LV_DAT: return("LV_DAT");
 374         case FT_LV_STRLEN: return("LV_STRLEN");
 375         case FT_LV_PLUS_L: return("LV_PLUS_L");
 376         case FT_LV_MINUS_L: return("LV_MINUS_L");
 377         case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
 378         case FT_LV_MODULO_L: return("LV_MODULO_L");
 379         case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
 380         case FT_LS_MONTH: return("LS_MONTH");
 381         case FT_LS_LMONTH: return("LS_LMONTH");
 382         case FT_LS_ZONE: return("LS_ZONE");
 383         case FT_LS_DAY: return("LS_DAY");
 384         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 385         case FT_LS_822DATE: return("LS_822DATE");
 386         case FT_LS_PRETTY: return("LS_PRETTY");
 387         case FT_LV_SEC: return("LV_SEC");
 388         case FT_LV_MIN: return("LV_MIN");
 389         case FT_LV_HOUR: return("LV_HOUR");
 390         case FT_LV_MDAY: return("LV_MDAY");
 391         case FT_LV_MON: return("LV_MON");
 392         case FT_LV_YEAR: return("LV_YEAR");
 393         case FT_LV_YDAY: return("LV_YDAY");
 394         case FT_LV_WDAY: return("LV_WDAY");
 395         case FT_LV_ZONE: return("LV_ZONE");
 396         case FT_LV_CLOCK: return("LV_CLOCK");
 397         case FT_LV_RCLOCK: return("LV_RCLOCK");
 398         case FT_LV_DAYF: return("LV_DAYF");
 399         case FT_LV_DST: return("LV_DST");
 400         case FT_LV_ZONEF: return("LV_ZONEF");
 401         case FT_LS_ADDR: return("LS_ADDR");
 402         case FT_LS_PERS: return("LS_PERS");
 403         case FT_LS_MBOX: return("LS_MBOX");
 404         case FT_LS_HOST: return("LS_HOST");
 405         case FT_LS_PATH: return("LS_PATH");
 406         case FT_LS_GNAME: return("LS_GNAME");
 407         case FT_LS_NOTE: return("LS_NOTE");
 408         case FT_LS_822ADDR: return("LS_822ADDR");
 409         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 410         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 411         case FT_LV_INGRPF: return("LV_INGRPF");
 412         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 413         case FT_LOCALDATE: return("LOCALDATE");
 414         case FT_GMTDATE: return("GMTDATE");
 415         case FT_PARSEDATE: return("PARSEDATE");
 416         case FT_PARSEADDR: return("PARSEADDR");
 417         case FT_FORMATADDR: return("FORMATADDR");
 418         case FT_CONCATADDR: return("CONCATADDR");
 419         case FT_MYMBOX: return("MYMBOX");
 420         case FT_SAVESTR: return("SAVESTR");
 421 #ifdef  FT_PAUSE
 422         case FT_PAUSE: return ("PAUSE");
 423 #endif
 424         case FT_DONE: return("DONE");
 425         case FT_NOP: return("NOP");
 426         case FT_GOTO: return("GOTO");
 427         case FT_IF_S_NULL: return("IF_S_NULL");
 428         case FT_IF_S: return("IF_S");
 429         case FT_IF_V_EQ: return("IF_V_EQ");
 430         case FT_IF_V_NE: return("IF_V_NE");
 431         case FT_IF_V_GT: return("IF_V_GT");
 432         case FT_IF_MATCH: return("IF_MATCH");
 433         case FT_IF_AMATCH: return("IF_AMATCH");
 434         case FT_S_NULL: return("S_NULL");
 435         case FT_S_NONNULL: return("S_NONNULL");
 436         case FT_V_EQ: return("V_EQ");
 437         case FT_V_NE: return("V_NE");
 438         case FT_V_GT: return("V_GT");
 439         case FT_V_MATCH: return("V_MATCH");
 440         case FT_V_AMATCH: return("V_AMATCH");
 441         default:
 442                 printf(buf, "/* ??? #%d */", t);
 443                 return(buf);
 444         }
 445 }
 446
 447 #define FNORD(v, s) if (t & (v)) { \
 448         if (i++ > 0) \
 449                 strcat(buf, "|"); \
 450         strcat(buf, s); }
 451
 452 static char *
 453 c_typestr(int t)
 454 {
 455         register int i;
 456         static char buf[64];
 457
 458         buf[0] = '\0';
 459         if (t & ~(CT_ADDR|CT_DATE))
 460                 printf(buf, "0x%x ", t);
 461         strcat(buf, "<");
 462         i = 0;
 463         FNORD(CT_ADDR, "ADDR");
 464         FNORD(CT_DATE, "DATE");
 465         strcat(buf, ">");
 466         return(buf);
 467 }
 468
 469 static char *
 470 c_flagsstr(int t)
 471 {
 472         register int i;
 473         static char buf[64];
 474
 475         buf[0] = '\0';
 476         if (t & ~(CF_TRUE|CF_PARSED|CF_DATEFAB|CF_TRIMMED))
 477                 printf(buf, "0x%x ", t);
 478         strcat(buf, "<");
 479         i = 0;
 480         FNORD(CF_TRUE, "TRUE");
 481         FNORD(CF_PARSED, "PARSED");
 482         FNORD(CF_DATEFAB, "DATEFAB");
 483         FNORD(CF_TRIMMED, "TRIMMED");
 484         strcat(buf, ">");
 485         return(buf);
 486 }
 487 #undef FNORD
 488
 489 static void
 490 litputs(char *s)
 491 {
 492         if (s) {
 493                 putc('"', stdout);
 494                 while (*s)
 495                         litputc(*s++);
 496                 putc('"', stdout);
 497         } else
 498                 fputs("<nil>", stdout);
 499 }
 500
 501 static void
 502 litputc(char c)
 503 {
 504         if (c & ~ 0177) {
 505                 putc('M', stdout);
 506                 putc('-', stdout);
 507                 c &= 0177;
 508         }
 509         if (c < 0x20 || c == 0177) {
 510                 if (c == '\b') {
 511                         putc('\\', stdout);
 512                         putc('b', stdout);
 513                 } else if (c == '\f') {
 514                         putc('\\', stdout);
 515                         putc('f', stdout);
 516                 } else if (c == '\n') {
 517                         putc('\\', stdout);
 518                         putc('n', stdout);
 519                 } else if (c == '\r') {
 520                         putc('\\', stdout);
 521                         putc('r', stdout);
 522                 } else if (c == '\t') {
 523                         putc('\\', stdout);
 524                         putc('t', stdout);
 525                 } else {
 526                         putc('^', stdout);
 527                         putc(c ^ 0x40, stdout); /* DEL to ?, others to alpha */
 528                 }
 529         } else
 530                 putc(c, stdout);
 531 }