/[pcre]/code/trunk/pcre_printint.src
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revision 240 by ph10, Tue Sep 11 15:47:20 2007 UTC revision 654 by ph10, Tue Aug 2 11:00:40 2011 UTC
# Line 6  Line 6 
6  and semantics are as close as possible to those of the Perl 5 language.  and semantics are as close as possible to those of the Perl 5 language.
7    
8                         Written by Philip Hazel                         Written by Philip Hazel
9             Copyright (c) 1997-2007 University of Cambridge             Copyright (c) 1997-2010 University of Cambridge
10    
11  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
12  Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
# Line 43  internal form of a compiled regular expr Line 43  internal form of a compiled regular expr
43  local functions. This source file is used in two places:  local functions. This source file is used in two places:
44    
45  (1) It is #included by pcre_compile.c when it is compiled in debugging mode  (1) It is #included by pcre_compile.c when it is compiled in debugging mode
46  (DEBUG defined in pcre_internal.h). It is not included in production compiles.  (PCRE_DEBUG defined in pcre_internal.h). It is not included in production
47    compiles.
48    
49  (2) It is always #included by pcretest.c, which can be asked to print out a  (2) It is always #included by pcretest.c, which can be asked to print out a
50  compiled regex for debugging purposes. */  compiled regex for debugging purposes. */
# Line 54  hexadecimal. We don't use isprint() beca Line 55  hexadecimal. We don't use isprint() beca
55  (even without the use of locales) and we want the output always to be the same,  (even without the use of locales) and we want the output always to be the same,
56  for testing purposes. This macro is used in pcretest as well as in this file. */  for testing purposes. This macro is used in pcretest as well as in this file. */
57    
58    #ifdef EBCDIC
59    #define PRINTABLE(c) ((c) >= 64 && (c) < 255)
60    #else
61  #define PRINTABLE(c) ((c) >= 32 && (c) < 127)  #define PRINTABLE(c) ((c) >= 32 && (c) < 127)
62    #endif
63    
64  /* The table of operator names. */  /* The table of operator names. */
65    
# Line 175  utf8 = (options & PCRE_UTF8) != 0; Line 180  utf8 = (options & PCRE_UTF8) != 0;
180  for(;;)  for(;;)
181    {    {
182    uschar *ccode;    uschar *ccode;
183      const char *flag = "  ";
184    int c;    int c;
185    int extra = 0;    int extra = 0;
186    
# Line 185  for(;;) Line 191  for(;;)
191    
192    switch(*code)    switch(*code)
193      {      {
194    /* ========================================================================== */
195          /* These cases are never obeyed. This is a fudge that causes a compile-
196          time error if the vectors OP_names or _pcre_OP_lengths, which are indexed
197          by opcode, are not the correct length. It seems to be the only way to do
198          such a check at compile time, as the sizeof() operator does not work in
199          the C preprocessor. We do this while compiling pcretest, because that
200          #includes pcre_tables.c, which holds _pcre_OP_lengths. We can't do this
201          when building pcre_compile.c with PCRE_DEBUG set, because it doesn't then
202          know the size of _pcre_OP_lengths. */
203    
204    #ifdef COMPILING_PCRETEST
205          case OP_TABLE_LENGTH:
206          case OP_TABLE_LENGTH +
207            ((sizeof(OP_names)/sizeof(const char *) == OP_TABLE_LENGTH) &&
208            (sizeof(_pcre_OP_lengths) == OP_TABLE_LENGTH)):
209          break;
210    #endif
211    /* ========================================================================== */
212    
213      case OP_END:      case OP_END:
214      fprintf(f, "    %s\n", OP_names[*code]);      fprintf(f, "    %s\n", OP_names[*code]);
215      fprintf(f, "------------------------------------------------------------------\n");      fprintf(f, "------------------------------------------------------------------\n");
216      return;      return;
217    
     case OP_OPT:  
     fprintf(f, " %.2x %s", code[1], OP_names[*code]);  
     break;  
   
218      case OP_CHAR:      case OP_CHAR:
219      fprintf(f, "    ");      fprintf(f, "    ");
220      do      do
# Line 205  for(;;) Line 226  for(;;)
226      fprintf(f, "\n");      fprintf(f, "\n");
227      continue;      continue;
228    
229      case OP_CHARNC:      case OP_CHARI:
230      fprintf(f, " NC ");      fprintf(f, " /i ");
231      do      do
232        {        {
233        code++;        code++;
234        code += 1 + print_char(f, code, utf8);        code += 1 + print_char(f, code, utf8);
235        }        }
236      while (*code == OP_CHARNC);      while (*code == OP_CHARI);
237      fprintf(f, "\n");      fprintf(f, "\n");
238      continue;      continue;
239    
240      case OP_CBRA:      case OP_CBRA:
241        case OP_CBRAPOS:
242      case OP_SCBRA:      case OP_SCBRA:
243        case OP_SCBRAPOS:
244      if (print_lengths) fprintf(f, "%3d ", GET(code, 1));      if (print_lengths) fprintf(f, "%3d ", GET(code, 1));
245        else fprintf(f, "    ");        else fprintf(f, "    ");
246      fprintf(f, "%s %d", OP_names[*code], GET2(code, 1+LINK_SIZE));      fprintf(f, "%s %d", OP_names[*code], GET2(code, 1+LINK_SIZE));
247      break;      break;
248    
249      case OP_BRA:      case OP_BRA:
250        case OP_BRAPOS:
251      case OP_SBRA:      case OP_SBRA:
252        case OP_SBRAPOS:
253      case OP_KETRMAX:      case OP_KETRMAX:
254      case OP_KETRMIN:      case OP_KETRMIN:
255        case OP_KETRPOS:
256      case OP_ALT:      case OP_ALT:
257      case OP_KET:      case OP_KET:
258      case OP_ASSERT:      case OP_ASSERT:
# Line 242  for(;;) Line 268  for(;;)
268      fprintf(f, "%s", OP_names[*code]);      fprintf(f, "%s", OP_names[*code]);
269      break;      break;
270    
271        case OP_CLOSE:
272        fprintf(f, "    %s %d", OP_names[*code], GET2(code, 1));
273        break;
274    
275      case OP_CREF:      case OP_CREF:
276        case OP_NCREF:
277      fprintf(f, "%3d %s", GET2(code,1), OP_names[*code]);      fprintf(f, "%3d %s", GET2(code,1), OP_names[*code]);
278      break;      break;
279    
# Line 254  for(;;) Line 285  for(;;)
285        fprintf(f, "    Cond recurse %d", c);        fprintf(f, "    Cond recurse %d", c);
286      break;      break;
287    
288        case OP_NRREF:
289        c = GET2(code, 1);
290        if (c == RREF_ANY)
291          fprintf(f, "    Cond nrecurse any");
292        else
293          fprintf(f, "    Cond nrecurse %d", c);
294        break;
295    
296      case OP_DEF:      case OP_DEF:
297      fprintf(f, "    Cond def");      fprintf(f, "    Cond def");
298      break;      break;
299    
300        case OP_STARI:
301        case OP_MINSTARI:
302        case OP_POSSTARI:
303        case OP_PLUSI:
304        case OP_MINPLUSI:
305        case OP_POSPLUSI:
306        case OP_QUERYI:
307        case OP_MINQUERYI:
308        case OP_POSQUERYI:
309        flag = "/i";
310        /* Fall through */
311      case OP_STAR:      case OP_STAR:
312      case OP_MINSTAR:      case OP_MINSTAR:
313      case OP_POSSTAR:      case OP_POSSTAR:
# Line 276  for(;;) Line 326  for(;;)
326      case OP_TYPEQUERY:      case OP_TYPEQUERY:
327      case OP_TYPEMINQUERY:      case OP_TYPEMINQUERY:
328      case OP_TYPEPOSQUERY:      case OP_TYPEPOSQUERY:
329      fprintf(f, "    ");      fprintf(f, " %s ", flag);
330      if (*code >= OP_TYPESTAR)      if (*code >= OP_TYPESTAR)
331        {        {
332        fprintf(f, "%s", OP_names[code[1]]);        fprintf(f, "%s", OP_names[code[1]]);
# Line 290  for(;;) Line 340  for(;;)
340      fprintf(f, "%s", OP_names[*code]);      fprintf(f, "%s", OP_names[*code]);
341      break;      break;
342    
343        case OP_EXACTI:
344        case OP_UPTOI:
345        case OP_MINUPTOI:
346        case OP_POSUPTOI:
347        flag = "/i";
348        /* Fall through */
349      case OP_EXACT:      case OP_EXACT:
350      case OP_UPTO:      case OP_UPTO:
351      case OP_MINUPTO:      case OP_MINUPTO:
352      case OP_POSUPTO:      case OP_POSUPTO:
353      fprintf(f, "    ");      fprintf(f, " %s ", flag);
354      extra = print_char(f, code+3, utf8);      extra = print_char(f, code+3, utf8);
355      fprintf(f, "{");      fprintf(f, "{");
356      if (*code != OP_EXACT) fprintf(f, "0,");      if (*code != OP_EXACT && *code != OP_EXACTI) fprintf(f, "0,");
357      fprintf(f, "%d}", GET2(code,1));      fprintf(f, "%d}", GET2(code,1));
358      if (*code == OP_MINUPTO) fprintf(f, "?");      if (*code == OP_MINUPTO || *code == OP_MINUPTOI) fprintf(f, "?");
359        else if (*code == OP_POSUPTO) fprintf(f, "+");        else if (*code == OP_POSUPTO || *code == OP_POSUPTOI) fprintf(f, "+");
360      break;      break;
361    
362      case OP_TYPEEXACT:      case OP_TYPEEXACT:
# Line 320  for(;;) Line 376  for(;;)
376        else if (*code == OP_TYPEPOSUPTO) fprintf(f, "+");        else if (*code == OP_TYPEPOSUPTO) fprintf(f, "+");
377      break;      break;
378    
379        case OP_NOTI:
380        flag = "/i";
381        /* Fall through */
382      case OP_NOT:      case OP_NOT:
383      c = code[1];      c = code[1];
384      if (PRINTABLE(c)) fprintf(f, "    [^%c]", c);      if (PRINTABLE(c)) fprintf(f, " %s [^%c]", flag, c);
385        else fprintf(f, "    [^\\x%02x]", c);        else fprintf(f, " %s [^\\x%02x]", flag, c);
386      break;      break;
387    
388        case OP_NOTSTARI:
389        case OP_NOTMINSTARI:
390        case OP_NOTPOSSTARI:
391        case OP_NOTPLUSI:
392        case OP_NOTMINPLUSI:
393        case OP_NOTPOSPLUSI:
394        case OP_NOTQUERYI:
395        case OP_NOTMINQUERYI:
396        case OP_NOTPOSQUERYI:
397        flag = "/i";
398        /* Fall through */
399    
400      case OP_NOTSTAR:      case OP_NOTSTAR:
401      case OP_NOTMINSTAR:      case OP_NOTMINSTAR:
402      case OP_NOTPOSSTAR:      case OP_NOTPOSSTAR:
# Line 336  for(;;) Line 407  for(;;)
407      case OP_NOTMINQUERY:      case OP_NOTMINQUERY:
408      case OP_NOTPOSQUERY:      case OP_NOTPOSQUERY:
409      c = code[1];      c = code[1];
410      if (PRINTABLE(c)) fprintf(f, "    [^%c]", c);      if (PRINTABLE(c)) fprintf(f, " %s [^%c]", flag, c);
411        else fprintf(f, "    [^\\x%02x]", c);        else fprintf(f, " %s [^\\x%02x]", flag, c);
412      fprintf(f, "%s", OP_names[*code]);      fprintf(f, "%s", OP_names[*code]);
413      break;      break;
414    
415        case OP_NOTEXACTI:
416        case OP_NOTUPTOI:
417        case OP_NOTMINUPTOI:
418        case OP_NOTPOSUPTOI:
419        flag = "/i";
420        /* Fall through */
421    
422      case OP_NOTEXACT:      case OP_NOTEXACT:
423      case OP_NOTUPTO:      case OP_NOTUPTO:
424      case OP_NOTMINUPTO:      case OP_NOTMINUPTO:
425      case OP_NOTPOSUPTO:      case OP_NOTPOSUPTO:
426      c = code[3];      c = code[3];
427      if (PRINTABLE(c)) fprintf(f, "    [^%c]{", c);      if (PRINTABLE(c)) fprintf(f, " %s [^%c]{", flag, c);
428        else fprintf(f, "    [^\\x%02x]{", c);        else fprintf(f, " %s [^\\x%02x]{", flag, c);
429      if (*code != OP_NOTEXACT) fprintf(f, "0,");      if (*code != OP_NOTEXACT && *code != OP_NOTEXACTI) fprintf(f, "0,");
430      fprintf(f, "%d}", GET2(code,1));      fprintf(f, "%d}", GET2(code,1));
431      if (*code == OP_NOTMINUPTO) fprintf(f, "?");      if (*code == OP_NOTMINUPTO || *code == OP_NOTMINUPTOI) fprintf(f, "?");
432        else if (*code == OP_NOTPOSUPTO) fprintf(f, "+");        else
433        if (*code == OP_NOTPOSUPTO || *code == OP_NOTPOSUPTOI) fprintf(f, "+");
434      break;      break;
435    
436      case OP_RECURSE:      case OP_RECURSE:
# Line 360  for(;;) Line 439  for(;;)
439      fprintf(f, "%s", OP_names[*code]);      fprintf(f, "%s", OP_names[*code]);
440      break;      break;
441    
442        case OP_REFI:
443        flag = "/i";
444        /* Fall through */
445      case OP_REF:      case OP_REF:
446      fprintf(f, "    \\%d", GET2(code,1));      fprintf(f, " %s \\%d", flag, GET2(code,1));
447      ccode = code + _pcre_OP_lengths[*code];      ccode = code + _pcre_OP_lengths[*code];
448      goto CLASS_REF_REPEAT;      goto CLASS_REF_REPEAT;
449    
# Line 497  for(;;) Line 579  for(;;)
579        }        }
580      break;      break;
581    
582      /* Anything else is just an item with no data*/      case OP_MARK:
583        case OP_PRUNE_ARG:
584        case OP_SKIP_ARG:
585        fprintf(f, "    %s %s", OP_names[*code], code + 2);
586        extra += code[1];
587        break;
588    
589        case OP_THEN:
590        if (print_lengths)
591          fprintf(f, "    %s %d", OP_names[*code], GET(code, 1));
592        else
593          fprintf(f, "    %s", OP_names[*code]);
594        break;
595    
596        case OP_THEN_ARG:
597        if (print_lengths)
598          fprintf(f, "    %s %d %s", OP_names[*code], GET(code, 1),
599            code + 2 + LINK_SIZE);
600        else
601          fprintf(f, "    %s %s", OP_names[*code], code + 2 + LINK_SIZE);
602        extra += code[1+LINK_SIZE];
603        break;
604    
605        case OP_CIRCM:
606        case OP_DOLLM:
607        flag = "/m";
608        /* Fall through */
609    
610        /* Anything else is just an item with no data, but possibly a flag. */
611    
612      default:      default:
613      fprintf(f, "    %s", OP_names[*code]);      fprintf(f, " %s %s", flag, OP_names[*code]);
614      break;      break;
615      }      }
616    
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