/[pcre]/code/trunk/pcretest.c
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revision 96 by nigel, Fri Mar 2 13:10:43 2007 UTC revision 150 by ph10, Tue Apr 17 08:22:40 2007 UTC
# Line 67  input mode under Windows. */ Line 67  input mode under Windows. */
67  #endif  #endif
68    
69    
70  #define PCRE_SPY        /* For Win32 build, import data, not export */  /* We have to include pcre_internal.h because we need the internal info for
71    displaying the results of pcre_study() and we also need to know about the
72  /* We include pcre_internal.h because we need the internal info for displaying  internal macros, structures, and other internal data values; pcretest has
73  the results of pcre_study() and we also need to know about the internal  "inside information" compared to a program that strictly follows the PCRE API.
74  macros, structures, and other internal data values; pcretest has "inside  
75  information" compared to a program that strictly follows the PCRE API. */  Although pcre_internal.h does itself include pcre.h, we explicitly include it
76    here before pcre_internal.h so that the PCRE_EXP_xxx macros get set
77    appropriately for an application, not for building PCRE. */
78    
79    #include "pcre.h"
80  #include "pcre_internal.h"  #include "pcre_internal.h"
81    
82  /* We need access to the data tables that PCRE uses. So as not to have to keep  /* We need access to the data tables that PCRE uses. So as not to have to keep
# Line 114  Makefile. */ Line 117  Makefile. */
117  #include "pcreposix.h"  #include "pcreposix.h"
118  #endif  #endif
119    
120  /* It is also possible, for the benefit of the version imported into Exim, to  /* It is also possible, for the benefit of the version currently imported into
121  build pcretest without support for UTF8 (define NOUTF8), without the interface  Exim, to build pcretest without support for UTF8 (define NOUTF8), without the
122  to the DFA matcher (NODFA), and without the doublecheck of the old "info"  interface to the DFA matcher (NODFA), and without the doublecheck of the old
123  function (define NOINFOCHECK). */  "info" function (define NOINFOCHECK). In fact, we automatically cut out the
124    UTF8 support if PCRE is built without it. */
125    
126    #ifndef SUPPORT_UTF8
127    #ifndef NOUTF8
128    #define NOUTF8
129    #endif
130    #endif
131    
132    
133  /* Other parameters */  /* Other parameters */
# Line 653  return count; Line 663  return count;
663  *************************************************/  *************************************************/
664    
665  /* This is used both at compile and run-time to check for <xxx> escapes, where  /* This is used both at compile and run-time to check for <xxx> escapes, where
666  xxx is LF, CR, CRLF, or ANY. Print a message and return 0 if there is no match.  xxx is LF, CR, CRLF, ANYCRLF, or ANY. Print a message and return 0 if there is
667    no match.
668    
669  Arguments:  Arguments:
670    p           points after the leading '<'    p           points after the leading '<'
# Line 668  check_newline(uschar *p, FILE *f) Line 679  check_newline(uschar *p, FILE *f)
679  if (strncmp((char *)p, "cr>", 3) == 0) return PCRE_NEWLINE_CR;  if (strncmp((char *)p, "cr>", 3) == 0) return PCRE_NEWLINE_CR;
680  if (strncmp((char *)p, "lf>", 3) == 0) return PCRE_NEWLINE_LF;  if (strncmp((char *)p, "lf>", 3) == 0) return PCRE_NEWLINE_LF;
681  if (strncmp((char *)p, "crlf>", 5) == 0) return PCRE_NEWLINE_CRLF;  if (strncmp((char *)p, "crlf>", 5) == 0) return PCRE_NEWLINE_CRLF;
682    if (strncmp((char *)p, "anycrlf>", 8) == 0) return PCRE_NEWLINE_ANYCRLF;
683  if (strncmp((char *)p, "any>", 4) == 0) return PCRE_NEWLINE_ANY;  if (strncmp((char *)p, "any>", 4) == 0) return PCRE_NEWLINE_ANY;
684  fprintf(f, "Unknown newline type at: <%s\n", p);  fprintf(f, "Unknown newline type at: <%s\n", p);
685  return 0;  return 0;
# Line 840  while (argc > 1 && argv[op][0] == '-') Line 852  while (argc > 1 && argv[op][0] == '-')
852      (void)pcre_config(PCRE_CONFIG_NEWLINE, &rc);      (void)pcre_config(PCRE_CONFIG_NEWLINE, &rc);
853      printf("  Newline sequence is %s\n", (rc == '\r')? "CR" :      printf("  Newline sequence is %s\n", (rc == '\r')? "CR" :
854        (rc == '\n')? "LF" : (rc == ('\r'<<8 | '\n'))? "CRLF" :        (rc == '\n')? "LF" : (rc == ('\r'<<8 | '\n'))? "CRLF" :
855          (rc == -2)? "ANYCRLF" :
856        (rc == -1)? "ANY" : "???");        (rc == -1)? "ANY" : "???");
857      (void)pcre_config(PCRE_CONFIG_LINK_SIZE, &rc);      (void)pcre_config(PCRE_CONFIG_LINK_SIZE, &rc);
858      printf("  Internal link size = %d\n", rc);      printf("  Internal link size = %d\n", rc);
# Line 851  while (argc > 1 && argv[op][0] == '-') Line 864  while (argc > 1 && argv[op][0] == '-')
864      printf("  Default recursion depth limit = %d\n", rc);      printf("  Default recursion depth limit = %d\n", rc);
865      (void)pcre_config(PCRE_CONFIG_STACKRECURSE, &rc);      (void)pcre_config(PCRE_CONFIG_STACKRECURSE, &rc);
866      printf("  Match recursion uses %s\n", rc? "stack" : "heap");      printf("  Match recursion uses %s\n", rc? "stack" : "heap");
867      exit(0);      goto EXIT;
868      }      }
869    else if (strcmp(argv[op], "-help") == 0 ||    else if (strcmp(argv[op], "-help") == 0 ||
870             strcmp(argv[op], "--help") == 0)             strcmp(argv[op], "--help") == 0)
# Line 937  while (!done) Line 950  while (!done)
950    size_t size, regex_gotten_store;    size_t size, regex_gotten_store;
951    int do_study = 0;    int do_study = 0;
952    int do_debug = debug;    int do_debug = debug;
953      int debug_lengths = 1;
954    int do_G = 0;    int do_G = 0;
955    int do_g = 0;    int do_g = 0;
956    int do_showinfo = showinfo;    int do_showinfo = showinfo;
# Line 1127  while (!done) Line 1141  while (!done)
1141        case 'S': do_study = 1; break;        case 'S': do_study = 1; break;
1142        case 'U': options |= PCRE_UNGREEDY; break;        case 'U': options |= PCRE_UNGREEDY; break;
1143        case 'X': options |= PCRE_EXTRA; break;        case 'X': options |= PCRE_EXTRA; break;
1144          case 'Z': debug_lengths = 0; break;
1145        case '8': options |= PCRE_UTF8; use_utf8 = 1; break;        case '8': options |= PCRE_UTF8; use_utf8 = 1; break;
1146        case '?': options |= PCRE_NO_UTF8_CHECK; break;        case '?': options |= PCRE_NO_UTF8_CHECK; break;
1147    
# Line 1328  while (!done) Line 1343  while (!done)
1343      if (do_debug)      if (do_debug)
1344        {        {
1345        fprintf(outfile, "------------------------------------------------------------------\n");        fprintf(outfile, "------------------------------------------------------------------\n");
1346        pcre_printint(re, outfile);        pcre_printint(re, outfile, debug_lengths);
1347        }        }
1348    
1349      if (do_showinfo)      if (do_showinfo)
# Line 1433  while (!done) Line 1448  while (!done)
1448          fprintf(outfile, "Forced newline sequence: CRLF\n");          fprintf(outfile, "Forced newline sequence: CRLF\n");
1449          break;          break;
1450    
1451            case PCRE_NEWLINE_ANYCRLF:
1452            fprintf(outfile, "Forced newline sequence: ANYCRLF\n");
1453            break;
1454    
1455          case PCRE_NEWLINE_ANY:          case PCRE_NEWLINE_ANY:
1456          fprintf(outfile, "Forced newline sequence: ANY\n");          fprintf(outfile, "Forced newline sequence: ANY\n");
1457          break;          break;
# Line 1582  while (!done) Line 1601  while (!done)
1601    for (;;)    for (;;)
1602      {      {
1603      uschar *q;      uschar *q;
1604      uschar *bptr = dbuffer;      uschar *bptr;
1605      int *use_offsets = offsets;      int *use_offsets = offsets;
1606      int use_size_offsets = size_offsets;      int use_size_offsets = size_offsets;
1607      int callout_data = 0;      int callout_data = 0;
# Line 1638  while (!done) Line 1657  while (!done)
1657      p = buffer;      p = buffer;
1658      while (isspace(*p)) p++;      while (isspace(*p)) p++;
1659    
1660      q = dbuffer;      bptr = q = dbuffer;
1661      while ((c = *p++) != 0)      while ((c = *p++) != 0)
1662        {        {
1663        int i = 0;        int i = 0;
# Line 2202  while (!done) Line 2221  while (!done)
2221          }          }
2222    
2223        /* Failed to match. If this is a /g or /G loop and we previously set        /* Failed to match. If this is a /g or /G loop and we previously set
2224        g_notempty after a null match, this is not necessarily the end.        g_notempty after a null match, this is not necessarily the end. We want
2225        We want to advance the start offset, and continue. In the case of UTF-8        to advance the start offset, and continue. We won't be at the end of the
2226        matching, the advance must be one character, not one byte. Fudge the        string - that was checked before setting g_notempty.
2227        offset values to achieve this. We won't be at the end of the string -  
2228        that was checked before setting g_notempty. */        Complication arises in the case when the newline option is "any" or
2229          "anycrlf". If the previous match was at the end of a line terminated by
2230          CRLF, an advance of one character just passes the \r, whereas we should
2231          prefer the longer newline sequence, as does the code in pcre_exec().
2232          Fudge the offset value to achieve this.
2233    
2234          Otherwise, in the case of UTF-8 matching, the advance must be one
2235          character, not one byte. */
2236    
2237        else        else
2238          {          {
2239          if (g_notempty != 0)          if (g_notempty != 0)
2240            {            {
2241            int onechar = 1;            int onechar = 1;
2242              unsigned int obits = ((real_pcre *)re)->options;
2243            use_offsets[0] = start_offset;            use_offsets[0] = start_offset;
2244            if (use_utf8)            if ((obits & PCRE_NEWLINE_BITS) == 0)
2245                {
2246                int d;
2247                (void)pcre_config(PCRE_CONFIG_NEWLINE, &d);
2248                obits = (d == '\r')? PCRE_NEWLINE_CR :
2249                        (d == '\n')? PCRE_NEWLINE_LF :
2250                        (d == ('\r'<<8 | '\n'))? PCRE_NEWLINE_CRLF :
2251                        (d == -2)? PCRE_NEWLINE_ANYCRLF :
2252                        (d == -1)? PCRE_NEWLINE_ANY : 0;
2253                }
2254              if (((obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANY ||
2255                   (obits & PCRE_NEWLINE_BITS) == PCRE_NEWLINE_ANYCRLF)
2256                  &&
2257                  start_offset < len - 1 &&
2258                  bptr[start_offset] == '\r' &&
2259                  bptr[start_offset+1] == '\n')
2260                onechar++;
2261              else if (use_utf8)
2262              {              {
2263              while (start_offset + onechar < len)              while (start_offset + onechar < len)
2264                {                {
# Line 2249  while (!done) Line 2293  while (!done)
2293        character. */        character. */
2294    
2295        g_notempty = 0;        g_notempty = 0;
2296    
2297        if (use_offsets[0] == use_offsets[1])        if (use_offsets[0] == use_offsets[1])
2298          {          {
2299          if (use_offsets[0] == len) break;          if (use_offsets[0] == len) break;

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