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