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  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <h/fmt_scan.h>
  14 #include <h/fmt_compile.h>
  15 #include <h/scansbr.h>
  16
  17 static struct swit switches[] = {
  18 #define FORMSW              0
  19     { "form formatfile", 0 },
  20 #define FMTSW               1
  21     { "format string", 5 },
  22 #define VERSIONSW           2
  23     { "version", 0 },
  24 #define HELPSW              3
  25     { "help", 0 },
  26     { NULL, 0 }
  27 };
  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 void litputs(char *);
  43 static void litputc(char);
  44
  45
  46 int
  47 main (int argc, char **argv)
  48 {
  49     int ncomps;
  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 (1);
  78                 case VERSIONSW:
  79                     print_version(invo_name);
  80                     done (1);
  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     ncomps = fmt_compile(nfs, &fmt);
 106
 107     fmt_dump(fmt);
 108     return done(0);
 109 }
 110
 111 static void
 112 fmt_dump (struct format *fmth)
 113 {
 114         int i;
 115         register struct format *fmt, *addr;
 116
 117         /* Assign labels */
 118         for (fmt = fmth; fmt; ++fmt) {
 119                 i = fmt->f_type;
 120                 if (i == FT_IF_S ||
 121                     i == FT_IF_S_NULL ||
 122                     i == FT_IF_V_EQ ||
 123                     i == FT_IF_V_NE ||
 124                     i == FT_IF_V_GT ||
 125                     i == FT_IF_MATCH ||
 126                     i == FT_IF_AMATCH ||
 127                     i == FT_GOTO) {
 128                         addr = fmt + fmt->f_skip;
 129                         if (findlabel(addr) < 0)
 130                                 assignlabel(addr);
 131                 }
 132                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 133                         break;
 134         }
 135
 136         /* Dump them out! */
 137         for (fmt = fmth; fmt; ++fmt) {
 138                 dumpone(fmt);
 139                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 140                         break;
 141         }
 142 }
 143
 144 static void
 145 dumpone(struct format *fmt)
 146 {
 147         register int i;
 148
 149         if ((i = findlabel(fmt)) >= 0)
 150                 printf("L%d:", i);
 151         putchar('\t');
 152
 153         fputs(f_typestr((int)fmt->f_type), stdout);
 154
 155         switch (fmt->f_type) {
 156
 157         case FT_COMP:
 158         case FT_LS_COMP:
 159         case FT_LV_COMPFLAG:
 160         case FT_LV_COMP:
 161                 printf(", comp ");
 162                 litputs(fmt->f_comp->c_name);
 163                 if (fmt->f_comp->c_type)
 164                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 165                 if (fmt->f_comp->c_flags)
 166                         printf(", c_flags %d", fmt->f_comp->c_flags);
 167                 break;
 168
 169         case FT_LV_SEC:
 170         case FT_LV_MIN:
 171         case FT_LV_HOUR:
 172         case FT_LV_MDAY:
 173         case FT_LV_MON:
 174         case FT_LS_MONTH:
 175         case FT_LS_LMONTH:
 176         case FT_LS_ZONE:
 177         case FT_LV_YEAR:
 178         case FT_LV_WDAY:
 179         case FT_LS_DAY:
 180         case FT_LS_WEEKDAY:
 181         case FT_LV_YDAY:
 182         case FT_LV_ZONE:
 183         case FT_LV_CLOCK:
 184         case FT_LV_RCLOCK:
 185         case FT_LV_DAYF:
 186         case FT_LV_ZONEF:
 187         case FT_LV_DST:
 188         case FT_LS_822DATE:
 189         case FT_LS_PRETTY:
 190         case FT_LOCALDATE:
 191         case FT_GMTDATE:
 192         case FT_PARSEDATE:
 193                 printf(", c_name ");
 194                 litputs(fmt->f_comp->c_name);
 195                 if (fmt->f_comp->c_type)
 196                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 197                 if (fmt->f_comp->c_flags)
 198                         printf(", c_flags %d", fmt->f_comp->c_flags);
 199                 break;
 200
 201         case FT_LS_ADDR:
 202         case FT_LS_PERS:
 203         case FT_LS_MBOX:
 204         case FT_LS_HOST:
 205         case FT_LS_PATH:
 206         case FT_LS_GNAME:
 207         case FT_LS_NOTE:
 208         case FT_LS_822ADDR:
 209         case FT_LV_HOSTTYPE:
 210         case FT_LV_INGRPF:
 211         case FT_LV_NOHOSTF:
 212         case FT_LS_FRIENDLY:
 213         case FT_PARSEADDR:
 214         case FT_MYMBOX:
 215                 printf(", c_name ");
 216                 litputs(fmt->f_comp->c_name);
 217                 if (fmt->f_comp->c_type)
 218                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 219                 if (fmt->f_comp->c_flags)
 220                         printf(", c_flags %d", fmt->f_comp->c_flags);
 221                 break;
 222
 223         case FT_COMPF:
 224                 printf(", width %d, fill '", fmt->f_width);
 225                 litputc(fmt->f_fill);
 226                 printf("' name ");
 227                 litputs(fmt->f_comp->c_name);
 228                 if (fmt->f_comp->c_type)
 229                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 230                 if (fmt->f_comp->c_flags)
 231                         printf(", c_flags %d", fmt->f_comp->c_flags);
 232                 break;
 233
 234         case FT_STRF:
 235         case FT_NUMF:
 236                 printf(", width %d, fill '", fmt->f_width);
 237                 litputc(fmt->f_fill);
 238                 putchar('\'');
 239                 break;
 240
 241         case FT_LIT:
 242 #ifdef FT_LIT_FORCE
 243         case FT_LIT_FORCE:
 244 #endif
 245                 putchar(' ');
 246                 litputs(fmt->f_text);
 247                 break;
 248
 249         case FT_LITF:
 250                 printf(", width %d, fill '", fmt->f_width);
 251                 litputc(fmt->f_fill);
 252                 printf("' ");
 253                 litputs(fmt->f_text);
 254                 break;
 255
 256         case FT_CHAR:
 257                 putchar(' ');
 258                 putchar('\'');
 259                 litputc(fmt->f_char);
 260                 putchar('\'');
 261                 break;
 262
 263
 264         case FT_IF_S:
 265         case FT_IF_S_NULL:
 266         case FT_IF_MATCH:
 267         case FT_IF_AMATCH:
 268                 printf(" continue else goto");
 269         case FT_GOTO:
 270                 i = findlabel(fmt + fmt->f_skip);
 271                 printf(" L%d", i);
 272                 break;
 273
 274         case FT_IF_V_EQ:
 275         case FT_IF_V_NE:
 276         case FT_IF_V_GT:
 277                 i = findlabel(fmt + fmt->f_skip);
 278                 printf(" %d continue else goto L%d", fmt->f_value, i);
 279                 break;
 280
 281         case FT_V_EQ:
 282         case FT_V_NE:
 283         case FT_V_GT:
 284         case FT_LV_LIT:
 285         case FT_LV_PLUS_L:
 286         case FT_LV_MINUS_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         register 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_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_MONTH: return("LS_MONTH");
 375         case FT_LS_LMONTH: return("LS_LMONTH");
 376         case FT_LS_ZONE: return("LS_ZONE");
 377         case FT_LS_DAY: return("LS_DAY");
 378         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 379         case FT_LS_822DATE: return("LS_822DATE");
 380         case FT_LS_PRETTY: return("LS_PRETTY");
 381         case FT_LV_SEC: return("LV_SEC");
 382         case FT_LV_MIN: return("LV_MIN");
 383         case FT_LV_HOUR: return("LV_HOUR");
 384         case FT_LV_MDAY: return("LV_MDAY");
 385         case FT_LV_MON: return("LV_MON");
 386         case FT_LV_YEAR: return("LV_YEAR");
 387         case FT_LV_YDAY: return("LV_YDAY");
 388         case FT_LV_WDAY: return("LV_WDAY");
 389         case FT_LV_ZONE: return("LV_ZONE");
 390         case FT_LV_CLOCK: return("LV_CLOCK");
 391         case FT_LV_RCLOCK: return("LV_RCLOCK");
 392         case FT_LV_DAYF: return("LV_DAYF");
 393         case FT_LV_DST: return("LV_DST");
 394         case FT_LV_ZONEF: return("LV_ZONEF");
 395         case FT_LS_ADDR: return("LS_ADDR");
 396         case FT_LS_PERS: return("LS_PERS");
 397         case FT_LS_MBOX: return("LS_MBOX");
 398         case FT_LS_HOST: return("LS_HOST");
 399         case FT_LS_PATH: return("LS_PATH");
 400         case FT_LS_GNAME: return("LS_GNAME");
 401         case FT_LS_NOTE: return("LS_NOTE");
 402         case FT_LS_822ADDR: return("LS_822ADDR");
 403         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 404         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 405         case FT_LV_INGRPF: return("LV_INGRPF");
 406         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 407         case FT_LOCALDATE: return("LOCALDATE");
 408         case FT_GMTDATE: return("GMTDATE");
 409         case FT_PARSEDATE: return("PARSEDATE");
 410         case FT_PARSEADDR: return("PARSEADDR");
 411         case FT_FORMATADDR: return("FORMATADDR");
 412         case FT_MYMBOX: return("MYMBOX");
 413 #ifdef  FT_ADDTOSEQ
 414         case FT_ADDTOSEQ: return("ADDTOSEQ");
 415 #endif
 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|CT_MYMBOX|CT_ADDRPARSE))
 456                 printf(buf, "0x%x ", t);
 457         strcat(buf, "<");
 458         i = 0;
 459         FNORD(CT_ADDR, "ADDR");
 460         FNORD(CT_DATE, "DATE");
 461         FNORD(CT_MYMBOX, "MYMBOX");
 462         FNORD(CT_ADDRPARSE, "ADDRPARSE");
 463         strcat(buf, ">");
 464         return(buf);
 465 #undef FNORD
 466 }
 467
 468 static void
 469 litputs(char *s)
 470 {
 471         if (s) {
 472                 putc('"', stdout);
 473                 while (*s)
 474                         litputc(*s++);
 475                 putc('"', stdout);
 476         } else
 477                 fputs("<nil>", stdout);
 478 }
 479
 480 static void
 481 litputc(char c)
 482 {
 483         if (c & ~ 0177) {
 484                 putc('M', stdout);
 485                 putc('-', stdout);
 486                 c &= 0177;
 487         }
 488         if (c < 0x20 || c == 0177) {
 489                 if (c == '\b') {
 490                         putc('\\', stdout);
 491                         putc('b', stdout);
 492                 } else if (c == '\f') {
 493                         putc('\\', stdout);
 494                         putc('f', stdout);
 495                 } else if (c == '\n') {
 496                         putc('\\', stdout);
 497                         putc('n', stdout);
 498                 } else if (c == '\r') {
 499                         putc('\\', stdout);
 500                         putc('r', stdout);
 501                 } else if (c == '\t') {
 502                         putc('\\', stdout);
 503                         putc('t', stdout);
 504                 } else {
 505                         putc('^', stdout);
 506                         putc(c ^ 0x40, stdout); /* DEL to ?, others to alpha */
 507                 }
 508         } else
 509                 putc(c, stdout);
 510 }