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 static struct swit switches[] = {
  16 #define FORMSW              0
  17     { "form formatfile", 0 },
  18 #define FMTSW               1
  19     { "format string", 5 },
  20 #define VERSIONSW           2
  21     { "version", 0 },
  22 #define HELPSW              3
  23     { "help", 0 },
  24     { NULL, 0 }
  25 };
  26
  27 /* for assignlabel */
  28 static struct format *lvec[128];
  29 static int lused = 0;
  30
  31 /*
  32  * static prototypes
  33  */
  34 static void fmt_dump (struct format *);
  35 static void dumpone(struct format *);
  36 static int findlabel(struct format *);
  37 static void assignlabel(struct format *);
  38 static char *f_typestr(int);
  39 static char *c_typestr(int);
  40 static char *c_flagsstr(int);
  41 static void litputs(char *);
  42 static void litputc(char);
  43
  44
  45 int
  46 main (int argc, char **argv)
  47 {
  48     char *cp, *form = NULL, *format = NULL;
  49     char buf[BUFSIZ], *nfs, **argp, **arguments;
  50     struct format *fmt;
  51
  52 #ifdef LOCALE
  53     setlocale(LC_ALL, "");
  54 #endif
  55     invo_name = r1bindex (argv[0], '/');
  56
  57     /* read user profile/context */
  58     context_read();
  59
  60     arguments = getarguments (invo_name, argc, argv, 1);
  61     argp = arguments;
  62
  63     while ((cp = *argp++)) {
  64         if (*cp == '-') {
  65             switch (smatch (++cp, switches)) {
  66                 case AMBIGSW:
  67                     ambigsw (cp, switches);
  68                     done (1);
  69                 case UNKWNSW:
  70                     adios (NULL, "-%s unknown", cp);
  71
  72                 case HELPSW:
  73                     snprintf (buf, sizeof(buf), "%s [switches]", invo_name);
  74                     print_help (buf, switches, 1);
  75                     done (0);
  76                 case VERSIONSW:
  77                     print_version(invo_name);
  78                     done (0);
  79
  80                 case FORMSW:
  81                     if (!(form = *argp++) || *form == '-')
  82                         adios (NULL, "missing argument to %s", argp[-2]);
  83                     format = NULL;
  84                     continue;
  85                 case FMTSW:
  86                     if (!(format = *argp++) || *format == '-')
  87                         adios (NULL, "missing argument to %s", argp[-2]);
  88                     form = NULL;
  89                     continue;
  90
  91             }
  92         }
  93         if (form)
  94             adios (NULL, "only one form at a time!");
  95         else
  96             form = cp;
  97     }
  98
  99     /*
 100      * Get new format string.  Must be before chdir().
 101      */
 102     nfs = new_fs (form, format, FORMAT);
 103     (void) fmt_compile(nfs, &fmt, 1);
 104
 105     fmt_dump(fmt);
 106
 107     fmt_free(fmt, 1);
 108
 109     done(0);
 110     return 1;
 111 }
 112
 113 static void
 114 fmt_dump (struct format *fmth)
 115 {
 116         int i;
 117         register struct format *fmt, *addr;
 118
 119         /* Assign labels */
 120         for (fmt = fmth; fmt; ++fmt) {
 121                 i = fmt->f_type;
 122                 if (i == FT_IF_S ||
 123                     i == FT_IF_S_NULL ||
 124                     i == FT_IF_V_EQ ||
 125                     i == FT_IF_V_NE ||
 126                     i == FT_IF_V_GT ||
 127                     i == FT_IF_MATCH ||
 128                     i == FT_IF_AMATCH ||
 129                     i == FT_GOTO) {
 130                         addr = fmt + fmt->f_skip;
 131                         if (findlabel(addr) < 0)
 132                                 assignlabel(addr);
 133                 }
 134                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 135                         break;
 136         }
 137
 138         /* Dump them out! */
 139         for (fmt = fmth; fmt; ++fmt) {
 140                 dumpone(fmt);
 141                 if (fmt->f_type == FT_DONE && fmt->f_value == 0)
 142                         break;
 143         }
 144 }
 145
 146 static void
 147 dumpone(struct format *fmt)
 148 {
 149         register int i;
 150
 151         if ((i = findlabel(fmt)) >= 0)
 152                 printf("L%d:", i);
 153         putchar('\t');
 154
 155         fputs(f_typestr((int)fmt->f_type), stdout);
 156
 157         switch (fmt->f_type) {
 158
 159         case FT_COMP:
 160         case FT_LS_COMP:
 161         case FT_LV_COMPFLAG:
 162         case FT_LV_COMP:
 163                 printf(", comp ");
 164                 litputs(fmt->f_comp->c_name);
 165                 if (fmt->f_comp->c_type)
 166                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 167                 if (fmt->f_comp->c_flags)
 168                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 169                 break;
 170
 171         case FT_LV_SEC:
 172         case FT_LV_MIN:
 173         case FT_LV_HOUR:
 174         case FT_LV_MDAY:
 175         case FT_LV_MON:
 176         case FT_LS_MONTH:
 177         case FT_LS_LMONTH:
 178         case FT_LS_ZONE:
 179         case FT_LV_YEAR:
 180         case FT_LV_WDAY:
 181         case FT_LS_DAY:
 182         case FT_LS_WEEKDAY:
 183         case FT_LV_YDAY:
 184         case FT_LV_ZONE:
 185         case FT_LV_CLOCK:
 186         case FT_LV_RCLOCK:
 187         case FT_LV_DAYF:
 188         case FT_LV_ZONEF:
 189         case FT_LV_DST:
 190         case FT_LS_822DATE:
 191         case FT_LS_PRETTY:
 192         case FT_LOCALDATE:
 193         case FT_GMTDATE:
 194         case FT_PARSEDATE:
 195                 printf(", c_name ");
 196                 litputs(fmt->f_comp->c_name);
 197                 if (fmt->f_comp->c_type)
 198                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 199                 if (fmt->f_comp->c_flags)
 200                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 201                 break;
 202
 203         case FT_LS_ADDR:
 204         case FT_LS_PERS:
 205         case FT_LS_MBOX:
 206         case FT_LS_HOST:
 207         case FT_LS_PATH:
 208         case FT_LS_GNAME:
 209         case FT_LS_NOTE:
 210         case FT_LS_822ADDR:
 211         case FT_LV_HOSTTYPE:
 212         case FT_LV_INGRPF:
 213         case FT_LV_NOHOSTF:
 214         case FT_LS_FRIENDLY:
 215         case FT_PARSEADDR:
 216         case FT_MYMBOX:
 217                 printf(", c_name ");
 218                 litputs(fmt->f_comp->c_name);
 219                 if (fmt->f_comp->c_type)
 220                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 221                 if (fmt->f_comp->c_flags)
 222                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 223                 break;
 224
 225         case FT_COMPF:
 226                 printf(", width %d, fill '", fmt->f_width);
 227                 litputc(fmt->f_fill);
 228                 printf("' name ");
 229                 litputs(fmt->f_comp->c_name);
 230                 if (fmt->f_comp->c_type)
 231                         printf(", c_type %s", c_typestr(fmt->f_comp->c_type));
 232                 if (fmt->f_comp->c_flags)
 233                         printf(", c_flags %s", c_flagsstr(fmt->f_comp->c_flags));
 234                 break;
 235
 236         case FT_STRF:
 237         case FT_NUMF:
 238                 printf(", width %d, fill '", fmt->f_width);
 239                 litputc(fmt->f_fill);
 240                 putchar('\'');
 241                 break;
 242
 243         case FT_LIT:
 244 #ifdef FT_LIT_FORCE
 245         case FT_LIT_FORCE:
 246 #endif
 247                 putchar(' ');
 248                 litputs(fmt->f_text);
 249                 break;
 250
 251         case FT_LITF:
 252                 printf(", width %d, fill '", fmt->f_width);
 253                 litputc(fmt->f_fill);
 254                 printf("' ");
 255                 litputs(fmt->f_text);
 256                 break;
 257
 258         case FT_CHAR:
 259                 putchar(' ');
 260                 putchar('\'');
 261                 litputc(fmt->f_char);
 262                 putchar('\'');
 263                 break;
 264
 265
 266         case FT_IF_S:
 267         case FT_IF_S_NULL:
 268         case FT_IF_MATCH:
 269         case FT_IF_AMATCH:
 270                 printf(" continue else goto");
 271         case FT_GOTO:
 272                 i = findlabel(fmt + fmt->f_skip);
 273                 printf(" L%d", i);
 274                 break;
 275
 276         case FT_IF_V_EQ:
 277         case FT_IF_V_NE:
 278         case FT_IF_V_GT:
 279                 i = findlabel(fmt + fmt->f_skip);
 280                 printf(" %d continue else goto L%d", fmt->f_value, i);
 281                 break;
 282
 283         case FT_V_EQ:
 284         case FT_V_NE:
 285         case FT_V_GT:
 286         case FT_LV_LIT:
 287         case FT_LV_PLUS_L:
 288         case FT_LV_MINUS_L:
 289         case FT_LV_DIVIDE_L:
 290         case FT_LV_MODULO_L:
 291                 printf(" value %d", fmt->f_value);
 292                 break;
 293
 294         case FT_LS_LIT:
 295                 printf(" str ");
 296                 litputs(fmt->f_text);
 297                 break;
 298
 299         case FT_LS_GETENV:
 300                 printf(" getenv ");
 301                 litputs(fmt->f_text);
 302                 break;
 303
 304         case FT_LS_DECODECOMP:
 305                 printf(", comp ");
 306                 litputs(fmt->f_comp->c_name);
 307                 break;
 308
 309         case FT_LS_DECODE:
 310                 break;
 311
 312         case FT_LS_TRIM:
 313                 printf(", width %d", fmt->f_width);
 314                 break;
 315
 316         case FT_LV_DAT:
 317                 printf(", value dat[%d]", fmt->f_value);
 318                 break;
 319         }
 320         putchar('\n');
 321 }
 322
 323 static int
 324 findlabel(struct format *addr)
 325 {
 326         register int i;
 327
 328         for (i = 0; i < lused; ++i)
 329                 if (addr == lvec[i])
 330                         return(i);
 331         return(-1);
 332 }
 333
 334 static void
 335 assignlabel(struct format *addr)
 336 {
 337         lvec[lused++] = addr;
 338 }
 339
 340 static char *
 341 f_typestr(int t)
 342 {
 343         static char buf[32];
 344
 345         switch (t) {
 346         case FT_COMP: return("COMP");
 347         case FT_COMPF: return("COMPF");
 348         case FT_LIT: return("LIT");
 349         case FT_LITF: return("LITF");
 350 #ifdef  FT_LIT_FORCE
 351         case FT_LIT_FORCE: return("LIT_FORCE");
 352 #endif
 353         case FT_CHAR: return("CHAR");
 354         case FT_NUM: return("NUM");
 355         case FT_NUMF: return("NUMF");
 356         case FT_STR: return("STR");
 357         case FT_STRF: return("STRF");
 358         case FT_STRFW: return("STRFW");
 359         case FT_PUTADDR: return("PUTADDR");
 360         case FT_STRLIT: return("STRLIT");
 361         case FT_STRLITZ: return("STRLITZ");
 362         case FT_LS_COMP: return("LS_COMP");
 363         case FT_LS_LIT: return("LS_LIT");
 364         case FT_LS_GETENV: return("LS_GETENV");
 365         case FT_LS_DECODECOMP: return("FT_LS_DECODECOMP");
 366         case FT_LS_DECODE: return("FT_LS_DECODE");
 367         case FT_LS_TRIM: return("LS_TRIM");
 368         case FT_LV_COMP: return("LV_COMP");
 369         case FT_LV_COMPFLAG: return("LV_COMPFLAG");
 370         case FT_LV_LIT: return("LV_LIT");
 371         case FT_LV_DAT: return("LV_DAT");
 372         case FT_LV_STRLEN: return("LV_STRLEN");
 373         case FT_LV_PLUS_L: return("LV_PLUS_L");
 374         case FT_LV_MINUS_L: return("LV_MINUS_L");
 375         case FT_LV_DIVIDE_L: return("LV_DIVIDE_L");
 376         case FT_LV_MODULO_L: return("LV_MODULO_L");
 377         case FT_LV_CHAR_LEFT: return("LV_CHAR_LEFT");
 378         case FT_LS_MONTH: return("LS_MONTH");
 379         case FT_LS_LMONTH: return("LS_LMONTH");
 380         case FT_LS_ZONE: return("LS_ZONE");
 381         case FT_LS_DAY: return("LS_DAY");
 382         case FT_LS_WEEKDAY: return("LS_WEEKDAY");
 383         case FT_LS_822DATE: return("LS_822DATE");
 384         case FT_LS_PRETTY: return("LS_PRETTY");
 385         case FT_LV_SEC: return("LV_SEC");
 386         case FT_LV_MIN: return("LV_MIN");
 387         case FT_LV_HOUR: return("LV_HOUR");
 388         case FT_LV_MDAY: return("LV_MDAY");
 389         case FT_LV_MON: return("LV_MON");
 390         case FT_LV_YEAR: return("LV_YEAR");
 391         case FT_LV_YDAY: return("LV_YDAY");
 392         case FT_LV_WDAY: return("LV_WDAY");
 393         case FT_LV_ZONE: return("LV_ZONE");
 394         case FT_LV_CLOCK: return("LV_CLOCK");
 395         case FT_LV_RCLOCK: return("LV_RCLOCK");
 396         case FT_LV_DAYF: return("LV_DAYF");
 397         case FT_LV_DST: return("LV_DST");
 398         case FT_LV_ZONEF: return("LV_ZONEF");
 399         case FT_LS_ADDR: return("LS_ADDR");
 400         case FT_LS_PERS: return("LS_PERS");
 401         case FT_LS_MBOX: return("LS_MBOX");
 402         case FT_LS_HOST: return("LS_HOST");
 403         case FT_LS_PATH: return("LS_PATH");
 404         case FT_LS_GNAME: return("LS_GNAME");
 405         case FT_LS_NOTE: return("LS_NOTE");
 406         case FT_LS_822ADDR: return("LS_822ADDR");
 407         case FT_LS_FRIENDLY: return("LS_FRIENDLY");
 408         case FT_LV_HOSTTYPE: return("LV_HOSTTYPE");
 409         case FT_LV_INGRPF: return("LV_INGRPF");
 410         case FT_LV_NOHOSTF: return("LV_NOHOSTF");
 411         case FT_LOCALDATE: return("LOCALDATE");
 412         case FT_GMTDATE: return("GMTDATE");
 413         case FT_PARSEDATE: return("PARSEDATE");
 414         case FT_PARSEADDR: return("PARSEADDR");
 415         case FT_FORMATADDR: return("FORMATADDR");
 416         case FT_CONCATADDR: return("CONCATADDR");
 417         case FT_MYMBOX: return("MYMBOX");
 418 #ifdef  FT_ADDTOSEQ
 419         case FT_ADDTOSEQ: return("ADDTOSEQ");
 420 #endif
 421         case FT_SAVESTR: return("SAVESTR");
 422 #ifdef  FT_PAUSE
 423         case FT_PAUSE: return ("PAUSE");
 424 #endif
 425         case FT_DONE: return("DONE");
 426         case FT_NOP: return("NOP");
 427         case FT_GOTO: return("GOTO");
 428         case FT_IF_S_NULL: return("IF_S_NULL");
 429         case FT_IF_S: return("IF_S");
 430         case FT_IF_V_EQ: return("IF_V_EQ");
 431         case FT_IF_V_NE: return("IF_V_NE");
 432         case FT_IF_V_GT: return("IF_V_GT");
 433         case FT_IF_MATCH: return("IF_MATCH");
 434         case FT_IF_AMATCH: return("IF_AMATCH");
 435         case FT_S_NULL: return("S_NULL");
 436         case FT_S_NONNULL: return("S_NONNULL");
 437         case FT_V_EQ: return("V_EQ");
 438         case FT_V_NE: return("V_NE");
 439         case FT_V_GT: return("V_GT");
 440         case FT_V_MATCH: return("V_MATCH");
 441         case FT_V_AMATCH: return("V_AMATCH");
 442         default:
 443                 printf(buf, "/* ??? #%d */", t);
 444                 return(buf);
 445         }
 446 }
 447
 448 #define FNORD(v, s) if (t & (v)) { \
 449         if (i++ > 0) \
 450                 strcat(buf, "|"); \
 451         strcat(buf, s); }
 452
 453 static char *
 454 c_typestr(int t)
 455 {
 456         register int i;
 457         static char buf[64];
 458
 459         buf[0] = '\0';
 460         if (t & ~(CT_ADDR|CT_DATE))
 461                 printf(buf, "0x%x ", t);
 462         strcat(buf, "<");
 463         i = 0;
 464         FNORD(CT_ADDR, "ADDR");
 465         FNORD(CT_DATE, "DATE");
 466         strcat(buf, ">");
 467         return(buf);
 468 }
 469
 470 static char *
 471 c_flagsstr(int t)
 472 {
 473         register int i;
 474         static char buf[64];
 475
 476         buf[0] = '\0';
 477         if (t & ~(CF_TRUE|CF_PARSED|CF_DATEFAB|CF_TRIMMED))
 478                 printf(buf, "0x%x ", t);
 479         strcat(buf, "<");
 480         i = 0;
 481         FNORD(CF_TRUE, "TRUE");
 482         FNORD(CF_PARSED, "PARSED");
 483         FNORD(CF_DATEFAB, "DATEFAB");
 484         FNORD(CF_TRIMMED, "TRIMMED");
 485         strcat(buf, ">");
 486         return(buf);
 487 }
 488 #undef FNORD
 489
 490 static void
 491 litputs(char *s)
 492 {
 493         if (s) {
 494                 putc('"', stdout);
 495                 while (*s)
 496                         litputc(*s++);
 497                 putc('"', stdout);
 498         } else
 499                 fputs("<nil>", stdout);
 500 }
 501
 502 static void
 503 litputc(char c)
 504 {
 505         if (c & ~ 0177) {
 506                 putc('M', stdout);
 507                 putc('-', stdout);
 508                 c &= 0177;
 509         }
 510         if (c < 0x20 || c == 0177) {
 511                 if (c == '\b') {
 512                         putc('\\', stdout);
 513                         putc('b', stdout);
 514                 } else if (c == '\f') {
 515                         putc('\\', stdout);
 516                         putc('f', stdout);
 517                 } else if (c == '\n') {
 518                         putc('\\', stdout);
 519                         putc('n', stdout);
 520                 } else if (c == '\r') {
 521                         putc('\\', stdout);
 522                         putc('r', stdout);
 523                 } else if (c == '\t') {
 524                         putc('\\', stdout);
 525                         putc('t', stdout);
 526                 } else {
 527                         putc('^', stdout);
 528                         putc(c ^ 0x40, stdout); /* DEL to ?, others to alpha */
 529                 }
 530         } else
 531                 putc(c, stdout);
 532 }