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

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