/[pcre]/code/trunk/pcregrep.c
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revision 199 by ph10, Tue Jul 31 14:39:09 2007 UTC revision 636 by ph10, Sun Jul 24 17:43:51 2011 UTC
# Line 6  Line 6 
6  its pattern matching. On a Unix or Win32 system it can recurse into  its pattern matching. On a Unix or Win32 system it can recurse into
7  directories.  directories.
8    
9             Copyright (c) 1997-2007 University of Cambridge             Copyright (c) 1997-2011 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 38  POSSIBILITY OF SUCH DAMAGE. Line 38  POSSIBILITY OF SUCH DAMAGE.
38  */  */
39    
40  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
41  #include <config.h>  #include "config.h"
42  #endif  #endif
43    
44  #include <ctype.h>  #include <ctype.h>
# Line 55  POSSIBILITY OF SUCH DAMAGE. Line 55  POSSIBILITY OF SUCH DAMAGE.
55  #include <unistd.h>  #include <unistd.h>
56  #endif  #endif
57    
58  #include <pcre.h>  #ifdef SUPPORT_LIBZ
59    #include <zlib.h>
60    #endif
61    
62    #ifdef SUPPORT_LIBBZ2
63    #include <bzlib.h>
64    #endif
65    
66    #include "pcre.h"
67    
68  #define FALSE 0  #define FALSE 0
69  #define TRUE 1  #define TRUE 1
# Line 63  POSSIBILITY OF SUCH DAMAGE. Line 71  POSSIBILITY OF SUCH DAMAGE.
71  typedef int BOOL;  typedef int BOOL;
72    
73  #define MAX_PATTERN_COUNT 100  #define MAX_PATTERN_COUNT 100
74    #define OFFSET_SIZE 99
75    
76  #if BUFSIZ > 8192  #if BUFSIZ > 8192
77  #define MBUFTHIRD BUFSIZ  #define MBUFTHIRD BUFSIZ
# Line 74  typedef int BOOL; Line 83  typedef int BOOL;
83  output. The order is important; it is assumed that a file name is wanted for  output. The order is important; it is assumed that a file name is wanted for
84  all values greater than FN_DEFAULT. */  all values greater than FN_DEFAULT. */
85    
86  enum { FN_NONE, FN_DEFAULT, FN_ONLY, FN_NOMATCH_ONLY, FN_FORCE };  enum { FN_NONE, FN_DEFAULT, FN_MATCH_ONLY, FN_NOMATCH_ONLY, FN_FORCE };
87    
88    /* File reading styles */
89    
90    enum { FR_PLAIN, FR_LIBZ, FR_LIBBZ2 };
91    
92  /* Actions for the -d and -D options */  /* Actions for the -d and -D options */
93    
# Line 91  enum { DEE_READ, DEE_SKIP }; Line 104  enum { DEE_READ, DEE_SKIP };
104    
105  enum { EL_LF, EL_CR, EL_CRLF, EL_ANY, EL_ANYCRLF };  enum { EL_LF, EL_CR, EL_CRLF, EL_ANY, EL_ANYCRLF };
106    
107    /* In newer versions of gcc, with FORTIFY_SOURCE set (the default in some
108    environments), a warning is issued if the value of fwrite() is ignored.
109    Unfortunately, casting to (void) does not suppress the warning. To get round
110    this, we use a macro that compiles a fudge. Oddly, this does not also seem to
111    apply to fprintf(). */
112    
113    #define FWRITE(a,b,c,d) if (fwrite(a,b,c,d)) {}
114    
115    
116    
117  /*************************************************  /*************************************************
# Line 127  static pcre_extra **hints_list = NULL; Line 148  static pcre_extra **hints_list = NULL;
148    
149  static char *include_pattern = NULL;  static char *include_pattern = NULL;
150  static char *exclude_pattern = NULL;  static char *exclude_pattern = NULL;
151    static char *include_dir_pattern = NULL;
152    static char *exclude_dir_pattern = NULL;
153    
154  static pcre *include_compiled = NULL;  static pcre *include_compiled = NULL;
155  static pcre *exclude_compiled = NULL;  static pcre *exclude_compiled = NULL;
156    static pcre *include_dir_compiled = NULL;
157    static pcre *exclude_dir_compiled = NULL;
158    
159  static int after_context = 0;  static int after_context = 0;
160  static int before_context = 0;  static int before_context = 0;
# Line 138  static int dee_action = dee_READ; Line 163  static int dee_action = dee_READ;
163  static int DEE_action = DEE_READ;  static int DEE_action = DEE_READ;
164  static int error_count = 0;  static int error_count = 0;
165  static int filenames = FN_DEFAULT;  static int filenames = FN_DEFAULT;
166    static int only_matching = -1;
167  static int process_options = 0;  static int process_options = 0;
168    
169    static unsigned long int match_limit = 0;
170    static unsigned long int match_limit_recursion = 0;
171    
172  static BOOL count_only = FALSE;  static BOOL count_only = FALSE;
173  static BOOL do_colour = FALSE;  static BOOL do_colour = FALSE;
174    static BOOL file_offsets = FALSE;
175  static BOOL hyphenpending = FALSE;  static BOOL hyphenpending = FALSE;
176  static BOOL invert = FALSE;  static BOOL invert = FALSE;
177    static BOOL line_buffered = FALSE;
178    static BOOL line_offsets = FALSE;
179  static BOOL multiline = FALSE;  static BOOL multiline = FALSE;
180  static BOOL number = FALSE;  static BOOL number = FALSE;
181  static BOOL only_matching = FALSE;  static BOOL omit_zero_count = FALSE;
182    static BOOL resource_error = FALSE;
183  static BOOL quiet = FALSE;  static BOOL quiet = FALSE;
184  static BOOL silent = FALSE;  static BOOL silent = FALSE;
185  static BOOL utf8 = FALSE;  static BOOL utf8 = FALSE;
186    
187  /* Structure for options and list of them */  /* Structure for options and list of them */
188    
189  enum { OP_NODATA, OP_STRING, OP_OP_STRING, OP_NUMBER, OP_OP_NUMBER,  enum { OP_NODATA, OP_STRING, OP_OP_STRING, OP_NUMBER, OP_LONGNUMBER,
190         OP_PATLIST };         OP_OP_NUMBER, OP_PATLIST };
191    
192  typedef struct option_item {  typedef struct option_item {
193    int type;    int type;
# Line 167  typedef struct option_item { Line 200  typedef struct option_item {
200  /* Options without a single-letter equivalent get a negative value. This can be  /* Options without a single-letter equivalent get a negative value. This can be
201  used to identify them. */  used to identify them. */
202    
203  #define N_COLOUR    (-1)  #define N_COLOUR       (-1)
204  #define N_EXCLUDE   (-2)  #define N_EXCLUDE      (-2)
205  #define N_HELP      (-3)  #define N_EXCLUDE_DIR  (-3)
206  #define N_INCLUDE   (-4)  #define N_HELP         (-4)
207  #define N_LABEL     (-5)  #define N_INCLUDE      (-5)
208  #define N_LOCALE    (-6)  #define N_INCLUDE_DIR  (-6)
209  #define N_NULL      (-7)  #define N_LABEL        (-7)
210    #define N_LOCALE       (-8)
211    #define N_NULL         (-9)
212    #define N_LOFFSETS     (-10)
213    #define N_FOFFSETS     (-11)
214    #define N_LBUFFER      (-12)
215    #define N_M_LIMIT      (-13)
216    #define N_M_LIMIT_REC  (-14)
217    
218  static option_item optionlist[] = {  static option_item optionlist[] = {
219    { OP_NODATA,    N_NULL,   NULL,              "",              "  terminate options" },    { OP_NODATA,     N_NULL,   NULL,              "",              "  terminate options" },
220    { OP_NODATA,    N_HELP,   NULL,              "help",          "display this help and exit" },    { OP_NODATA,     N_HELP,   NULL,              "help",          "display this help and exit" },
221    { OP_NUMBER,    'A',      &after_context,    "after-context=number", "set number of following context lines" },    { OP_NUMBER,     'A',      &after_context,    "after-context=number", "set number of following context lines" },
222    { OP_NUMBER,    'B',      &before_context,   "before-context=number", "set number of prior context lines" },    { OP_NUMBER,     'B',      &before_context,   "before-context=number", "set number of prior context lines" },
223    { OP_OP_STRING, N_COLOUR, &colour_option,    "color=option",  "matched text color option" },    { OP_OP_STRING,  N_COLOUR, &colour_option,    "color=option",  "matched text color option" },
224    { OP_NUMBER,    'C',      &both_context,     "context=number", "set number of context lines, before & after" },    { OP_OP_STRING,  N_COLOUR, &colour_option,    "colour=option", "matched text colour option" },
225    { OP_NODATA,    'c',      NULL,              "count",         "print only a count of matching lines per FILE" },    { OP_NUMBER,     'C',      &both_context,     "context=number", "set number of context lines, before & after" },
226    { OP_OP_STRING, N_COLOUR, &colour_option,    "colour=option", "matched text colour option" },    { OP_NODATA,     'c',      NULL,              "count",         "print only a count of matching lines per FILE" },
227    { OP_STRING,    'D',      &DEE_option,       "devices=action","how to handle devices, FIFOs, and sockets" },    { OP_STRING,     'D',      &DEE_option,       "devices=action","how to handle devices, FIFOs, and sockets" },
228    { OP_STRING,    'd',      &dee_option,       "directories=action", "how to handle directories" },    { OP_STRING,     'd',      &dee_option,       "directories=action", "how to handle directories" },
229    { OP_PATLIST,   'e',      NULL,              "regex(p)",      "specify pattern (may be used more than once)" },    { OP_PATLIST,    'e',      NULL,              "regex(p)=pattern", "specify pattern (may be used more than once)" },
230    { OP_NODATA,    'F',      NULL,              "fixed_strings", "patterns are sets of newline-separated strings" },    { OP_NODATA,     'F',      NULL,              "fixed-strings", "patterns are sets of newline-separated strings" },
231    { OP_STRING,    'f',      &pattern_filename, "file=path",     "read patterns from file" },    { OP_STRING,     'f',      &pattern_filename, "file=path",     "read patterns from file" },
232    { OP_NODATA,    'H',      NULL,              "with-filename", "force the prefixing filename on output" },    { OP_NODATA,     N_FOFFSETS, NULL,            "file-offsets",  "output file offsets, not text" },
233    { OP_NODATA,    'h',      NULL,              "no-filename",   "suppress the prefixing filename on output" },    { OP_NODATA,     'H',      NULL,              "with-filename", "force the prefixing filename on output" },
234    { OP_NODATA,    'i',      NULL,              "ignore-case",   "ignore case distinctions" },    { OP_NODATA,     'h',      NULL,              "no-filename",   "suppress the prefixing filename on output" },
235    { OP_NODATA,    'l',      NULL,              "files-with-matches", "print only FILE names containing matches" },    { OP_NODATA,     'i',      NULL,              "ignore-case",   "ignore case distinctions" },
236    { OP_NODATA,    'L',      NULL,              "files-without-match","print only FILE names not containing matches" },    { OP_NODATA,     'l',      NULL,              "files-with-matches", "print only FILE names containing matches" },
237    { OP_STRING,    N_LABEL,  &stdin_name,       "label=name",    "set name for standard input" },    { OP_NODATA,     'L',      NULL,              "files-without-match","print only FILE names not containing matches" },
238    { OP_STRING,    N_LOCALE, &locale,           "locale=locale", "use the named locale" },    { OP_STRING,     N_LABEL,  &stdin_name,       "label=name",    "set name for standard input" },
239    { OP_NODATA,    'M',      NULL,              "multiline",     "run in multiline mode" },    { OP_NODATA,     N_LBUFFER, NULL,             "line-buffered", "use line buffering" },
240    { OP_STRING,    'N',      &newline,          "newline=type",  "specify newline type (CR, LF, CRLF, ANYCRLF or ANY)" },    { OP_NODATA,     N_LOFFSETS, NULL,            "line-offsets",  "output line numbers and offsets, not text" },
241    { OP_NODATA,    'n',      NULL,              "line-number",   "print line number with output lines" },    { OP_STRING,     N_LOCALE, &locale,           "locale=locale", "use the named locale" },
242    { OP_NODATA,    'o',      NULL,              "only-matching", "show only the part of the line that matched" },    { OP_LONGNUMBER, N_M_LIMIT, &match_limit,     "match-limit=number", "set PCRE match limit option" },
243    { OP_NODATA,    'q',      NULL,              "quiet",         "suppress output, just set return code" },    { OP_LONGNUMBER, N_M_LIMIT_REC, &match_limit_recursion, "recursion-limit=number", "set PCRE match recursion limit option" },
244    { OP_NODATA,    'r',      NULL,              "recursive",     "recursively scan sub-directories" },    { OP_NODATA,     'M',      NULL,              "multiline",     "run in multiline mode" },
245    { OP_STRING,    N_EXCLUDE,&exclude_pattern,  "exclude=pattern","exclude matching files when recursing" },    { OP_STRING,     'N',      &newline,          "newline=type",  "set newline type (CR, LF, CRLF, ANYCRLF or ANY)" },
246    { OP_STRING,    N_INCLUDE,&include_pattern,  "include=pattern","include matching files when recursing" },    { OP_NODATA,     'n',      NULL,              "line-number",   "print line number with output lines" },
247      { OP_OP_NUMBER,  'o',      &only_matching,    "only-matching=n", "show only the part of the line that matched" },
248      { OP_NODATA,     'q',      NULL,              "quiet",         "suppress output, just set return code" },
249      { OP_NODATA,     'r',      NULL,              "recursive",     "recursively scan sub-directories" },
250      { OP_STRING,     N_EXCLUDE,&exclude_pattern,  "exclude=pattern","exclude matching files when recursing" },
251      { OP_STRING,     N_INCLUDE,&include_pattern,  "include=pattern","include matching files when recursing" },
252      { OP_STRING,     N_EXCLUDE_DIR,&exclude_dir_pattern, "exclude-dir=pattern","exclude matching directories when recursing" },
253      { OP_STRING,     N_INCLUDE_DIR,&include_dir_pattern, "include-dir=pattern","include matching directories when recursing" },
254    
255      /* These two were accidentally implemented with underscores instead of
256      hyphens in the option names. As this was not discovered for several releases,
257      the incorrect versions are left in the table for compatibility. However, the
258      --help function misses out any option that has an underscore in its name. */
259    
260      { OP_STRING,    N_EXCLUDE_DIR,&exclude_dir_pattern, "exclude_dir=pattern","exclude matching directories when recursing" },
261      { OP_STRING,    N_INCLUDE_DIR,&include_dir_pattern, "include_dir=pattern","include matching directories when recursing" },
262    
263  #ifdef JFRIEDL_DEBUG  #ifdef JFRIEDL_DEBUG
264    { OP_OP_NUMBER, 'S',      &S_arg,            "jeffS",         "replace matched (sub)string with X" },    { OP_OP_NUMBER, 'S',      &S_arg,            "jeffS",         "replace matched (sub)string with X" },
265  #endif  #endif
# Line 240  const char utf8_table4[] = { Line 296  const char utf8_table4[] = {
296    
297    
298  /*************************************************  /*************************************************
299    *         Exit from the program                  *
300    *************************************************/
301    
302    /* If there has been a resource error, give a suitable message.
303    
304    Argument:  the return code
305    Returns:   does not return
306    */
307    
308    static void
309    pcregrep_exit(int rc)
310    {
311    if (resource_error)
312      {
313      fprintf(stderr, "pcregrep: Error %d or %d means that a resource limit "
314        "was exceeded.\n", PCRE_ERROR_MATCHLIMIT, PCRE_ERROR_RECURSIONLIMIT);
315      fprintf(stderr, "pcregrep: Check your regex for nested unlimited loops.\n");
316      }
317    
318    exit(rc);
319    }
320    
321    
322    /*************************************************
323  *            OS-specific functions               *  *            OS-specific functions               *
324  *************************************************/  *************************************************/
325    
# Line 303  return (statbuf.st_mode & S_IFMT) == S_I Line 383  return (statbuf.st_mode & S_IFMT) == S_I
383  }  }
384    
385    
386  /************* Test stdout for being a terminal in Unix **********/  /************* Test for a terminal in Unix **********/
387    
388  static BOOL  static BOOL
389  is_stdout_tty(void)  is_stdout_tty(void)
# Line 311  is_stdout_tty(void) Line 391  is_stdout_tty(void)
391  return isatty(fileno(stdout));  return isatty(fileno(stdout));
392  }  }
393    
394    static BOOL
395    is_file_tty(FILE *f)
396    {
397    return isatty(fileno(f));
398    }
399    
400    
401  /************* Directory scanning in Win32 ***********/  /************* Directory scanning in Win32 ***********/
402    
403  /* I (Philip Hazel) have no means of testing this code. It was contributed by  /* I (Philip Hazel) have no means of testing this code. It was contributed by
404  Lionel Fourquaux. David Burgess added a patch to define INVALID_FILE_ATTRIBUTES  Lionel Fourquaux. David Burgess added a patch to define INVALID_FILE_ATTRIBUTES
405  when it did not exist. */  when it did not exist. David Byron added a patch that moved the #include of
406    <windows.h> to before the INVALID_FILE_ATTRIBUTES definition rather than after.
407    The double test below stops gcc 4.4.4 grumbling that HAVE_WINDOWS_H is
408    undefined when it is indeed undefined. */
409    
410    #elif defined HAVE_WINDOWS_H && HAVE_WINDOWS_H
 #elif HAVE_WINDOWS_H  
411    
412  #ifndef STRICT  #ifndef STRICT
413  # define STRICT  # define STRICT
# Line 327  when it did not exist. */ Line 415  when it did not exist. */
415  #ifndef WIN32_LEAN_AND_MEAN  #ifndef WIN32_LEAN_AND_MEAN
416  # define WIN32_LEAN_AND_MEAN  # define WIN32_LEAN_AND_MEAN
417  #endif  #endif
418    
419    #include <windows.h>
420    
421  #ifndef INVALID_FILE_ATTRIBUTES  #ifndef INVALID_FILE_ATTRIBUTES
422  #define INVALID_FILE_ATTRIBUTES 0xFFFFFFFF  #define INVALID_FILE_ATTRIBUTES 0xFFFFFFFF
423  #endif  #endif
424    
 #include <windows.h>  
   
425  typedef struct directory_type  typedef struct directory_type
426  {  {
427  HANDLE handle;  HANDLE handle;
# Line 362  dir = (directory_type *) malloc(sizeof(* Line 451  dir = (directory_type *) malloc(sizeof(*
451  if ((pattern == NULL) || (dir == NULL))  if ((pattern == NULL) || (dir == NULL))
452    {    {
453    fprintf(stderr, "pcregrep: malloc failed\n");    fprintf(stderr, "pcregrep: malloc failed\n");
454    exit(2);    pcregrep_exit(2);
455    }    }
456  memcpy(pattern, filename, len);  memcpy(pattern, filename, len);
457  memcpy(&(pattern[len]), "\\*", 3);  memcpy(&(pattern[len]), "\\*", 3);
# Line 417  regular if they are not directories. */ Line 506  regular if they are not directories. */
506    
507  int isregfile(char *filename)  int isregfile(char *filename)
508  {  {
509  return !isdirectory(filename)  return !isdirectory(filename);
510  }  }
511    
512    
513  /************* Test stdout for being a terminal in Win32 **********/  /************* Test for a terminal in Win32 **********/
514    
515  /* I don't know how to do this; assume never */  /* I don't know how to do this; assume never */
516    
517  static BOOL  static BOOL
518  is_stdout_tty(void)  is_stdout_tty(void)
519  {  {
520  FALSE;  return FALSE;
521    }
522    
523    static BOOL
524    is_file_tty(FILE *f)
525    {
526    return FALSE;
527  }  }
528    
529    
# Line 453  void closedirectory(directory_type *dir) Line 548  void closedirectory(directory_type *dir)
548  int isregfile(char *filename) { return 1; }  int isregfile(char *filename) { return 1; }
549    
550    
551  /************* Test stdout for being a terminal when we can't do it **********/  /************* Test for a terminal when we can't do it **********/
552    
553  static BOOL  static BOOL
554  is_stdout_tty(void)  is_stdout_tty(void)
# Line 461  is_stdout_tty(void) Line 556  is_stdout_tty(void)
556  return FALSE;  return FALSE;
557  }  }
558    
559    static BOOL
560    is_file_tty(FILE *f)
561    {
562    return FALSE;
563    }
564    
565  #endif  #endif
566    
# Line 489  return sys_errlist[n]; Line 589  return sys_errlist[n];
589    
590    
591  /*************************************************  /*************************************************
592    *            Read one line of input              *
593    *************************************************/
594    
595    /* Normally, input is read using fread() into a large buffer, so many lines may
596    be read at once. However, doing this for tty input means that no output appears
597    until a lot of input has been typed. Instead, tty input is handled line by
598    line. We cannot use fgets() for this, because it does not stop at a binary
599    zero, and therefore there is no way of telling how many characters it has read,
600    because there may be binary zeros embedded in the data.
601    
602    Arguments:
603      buffer     the buffer to read into
604      length     the maximum number of characters to read
605      f          the file
606    
607    Returns:     the number of characters read, zero at end of file
608    */
609    
610    static int
611    read_one_line(char *buffer, int length, FILE *f)
612    {
613    int c;
614    int yield = 0;
615    while ((c = fgetc(f)) != EOF)
616      {
617      buffer[yield++] = c;
618      if (c == '\n' || yield >= length) break;
619      }
620    return yield;
621    }
622    
623    
624    
625    /*************************************************
626  *             Find end of line                   *  *             Find end of line                   *
627  *************************************************/  *************************************************/
628    
# Line 500  Arguments: Line 634  Arguments:
634    endptr    end of available data    endptr    end of available data
635    lenptr    where to put the length of the eol sequence    lenptr    where to put the length of the eol sequence
636    
637  Returns:    pointer to the last byte of the line  Returns:    pointer to the last byte of the line, including the newline byte(s)
638  */  */
639    
640  static char *  static char *
# Line 783  if (after_context > 0 && lastmatchnumber Line 917  if (after_context > 0 && lastmatchnumber
917      if (printname != NULL) fprintf(stdout, "%s-", printname);      if (printname != NULL) fprintf(stdout, "%s-", printname);
918      if (number) fprintf(stdout, "%d-", lastmatchnumber++);      if (number) fprintf(stdout, "%d-", lastmatchnumber++);
919      pp = end_of_line(pp, endptr, &ellength);      pp = end_of_line(pp, endptr, &ellength);
920      fwrite(lastmatchrestart, 1, pp - lastmatchrestart, stdout);      FWRITE(lastmatchrestart, 1, pp - lastmatchrestart, stdout);
921      lastmatchrestart = pp;      lastmatchrestart = pp;
922      }      }
923    hyphenpending = TRUE;    hyphenpending = TRUE;
# Line 793  if (after_context > 0 && lastmatchnumber Line 927  if (after_context > 0 && lastmatchnumber
927    
928    
929  /*************************************************  /*************************************************
930    *   Apply patterns to subject till one matches   *
931    *************************************************/
932    
933    /* This function is called to run through all patterns, looking for a match. It
934    is used multiple times for the same subject when colouring is enabled, in order
935    to find all possible matches.
936    
937    Arguments:
938      matchptr     the start of the subject
939      length       the length of the subject to match
940      startoffset  where to start matching
941      offsets      the offets vector to fill in
942      mrc          address of where to put the result of pcre_exec()
943    
944    Returns:      TRUE if there was a match
945                  FALSE if there was no match
946                  invert if there was a non-fatal error
947    */
948    
949    static BOOL
950    match_patterns(char *matchptr, size_t length, int startoffset, int *offsets,
951      int *mrc)
952    {
953    int i;
954    size_t slen = length;
955    const char *msg = "this text:\n\n";
956    if (slen > 200)
957      {
958      slen = 200;
959      msg = "text that starts:\n\n";
960      }
961    for (i = 0; i < pattern_count; i++)
962      {
963      *mrc = pcre_exec(pattern_list[i], hints_list[i], matchptr, (int)length,
964        startoffset, PCRE_NOTEMPTY, offsets, OFFSET_SIZE);
965      if (*mrc >= 0) return TRUE;
966      if (*mrc == PCRE_ERROR_NOMATCH) continue;
967      fprintf(stderr, "pcregrep: pcre_exec() gave error %d while matching ", *mrc);
968      if (pattern_count > 1) fprintf(stderr, "pattern number %d to ", i+1);
969      fprintf(stderr, "%s", msg);
970      FWRITE(matchptr, 1, slen, stderr);   /* In case binary zero included */
971      fprintf(stderr, "\n\n");
972      if (*mrc == PCRE_ERROR_MATCHLIMIT || *mrc == PCRE_ERROR_RECURSIONLIMIT)
973        resource_error = TRUE;
974      if (error_count++ > 20)
975        {
976        fprintf(stderr, "pcregrep: Too many errors - abandoned.\n");
977        pcregrep_exit(2);
978        }
979      return invert;    /* No more matching; don't show the line again */
980      }
981    
982    return FALSE;  /* No match, no errors */
983    }
984    
985    
986    
987    /*************************************************
988  *            Grep an individual file             *  *            Grep an individual file             *
989  *************************************************/  *************************************************/
990    
# Line 804  be in the middle third most of the time, Line 996  be in the middle third most of the time,
996  "before" context printing.  "before" context printing.
997    
998  Arguments:  Arguments:
999    in           the fopened FILE stream    handle       the fopened FILE stream for a normal file
1000                   the gzFile pointer when reading is via libz
1001                   the BZFILE pointer when reading is via libbz2
1002      frtype       FR_PLAIN, FR_LIBZ, or FR_LIBBZ2
1003    printname    the file name if it is to be printed for each match    printname    the file name if it is to be printed for each match
1004                 or NULL if the file name is not to be printed                 or NULL if the file name is not to be printed
1005                 it cannot be NULL if filenames[_nomatch]_only is set                 it cannot be NULL if filenames[_nomatch]_only is set
1006    
1007  Returns:       0 if there was at least one match  Returns:       0 if there was at least one match
1008                 1 otherwise (no matches)                 1 otherwise (no matches)
1009                   2 if there is a read error on a .bz2 file
1010  */  */
1011    
1012  static int  static int
1013  pcregrep(FILE *in, char *printname)  pcregrep(void *handle, int frtype, char *printname)
1014  {  {
1015  int rc = 1;  int rc = 1;
1016  int linenumber = 1;  int linenumber = 1;
1017  int lastmatchnumber = 0;  int lastmatchnumber = 0;
1018  int count = 0;  int count = 0;
1019  int offsets[99];  int filepos = 0;
1020    int offsets[OFFSET_SIZE];
1021  char *lastmatchrestart = NULL;  char *lastmatchrestart = NULL;
1022  char buffer[3*MBUFTHIRD];  char buffer[3*MBUFTHIRD];
1023  char *ptr = buffer;  char *ptr = buffer;
1024  char *endptr;  char *endptr;
1025  size_t bufflength;  size_t bufflength;
1026  BOOL endhyphenpending = FALSE;  BOOL endhyphenpending = FALSE;
1027    BOOL input_line_buffered = line_buffered;
1028    FILE *in = NULL;                    /* Ensure initialized */
1029    
1030    #ifdef SUPPORT_LIBZ
1031    gzFile ingz = NULL;
1032    #endif
1033    
1034    #ifdef SUPPORT_LIBBZ2
1035    BZFILE *inbz2 = NULL;
1036    #endif
1037    
1038    
1039    /* Do the first read into the start of the buffer and set up the pointer to end
1040    of what we have. In the case of libz, a non-zipped .gz file will be read as a
1041    plain file. However, if a .bz2 file isn't actually bzipped, the first read will
1042    fail. */
1043    
1044  /* Do the first read into the start of the buffer and set up the pointer to  #ifdef SUPPORT_LIBZ
1045  end of what we have. */  if (frtype == FR_LIBZ)
1046      {
1047      ingz = (gzFile)handle;
1048      bufflength = gzread (ingz, buffer, 3*MBUFTHIRD);
1049      }
1050    else
1051    #endif
1052    
1053    #ifdef SUPPORT_LIBBZ2
1054    if (frtype == FR_LIBBZ2)
1055      {
1056      inbz2 = (BZFILE *)handle;
1057      bufflength = BZ2_bzread(inbz2, buffer, 3*MBUFTHIRD);
1058      if ((int)bufflength < 0) return 2;   /* Gotcha: bufflength is size_t; */
1059      }                                    /* without the cast it is unsigned. */
1060    else
1061    #endif
1062    
1063      {
1064      in = (FILE *)handle;
1065      if (is_file_tty(in)) input_line_buffered = TRUE;
1066      bufflength = input_line_buffered?
1067        read_one_line(buffer, 3*MBUFTHIRD, in) :
1068        fread(buffer, 1, 3*MBUFTHIRD, in);
1069      }
1070    
 bufflength = fread(buffer, 1, 3*MBUFTHIRD, in);  
1071  endptr = buffer + bufflength;  endptr = buffer + bufflength;
1072    
1073  /* Loop while the current pointer is not at the end of the file. For large  /* Loop while the current pointer is not at the end of the file. For large
# Line 841  way, the buffer is shifted left and re-f Line 1077  way, the buffer is shifted left and re-f
1077    
1078  while (ptr < endptr)  while (ptr < endptr)
1079    {    {
1080    int i, endlinelength;    int endlinelength;
1081    int mrc = 0;    int mrc = 0;
1082    BOOL match = FALSE;    int startoffset = 0;
1083      BOOL match;
1084      char *matchptr = ptr;
1085    char *t = ptr;    char *t = ptr;
1086    size_t length, linelength;    size_t length, linelength;
1087    
1088    /* At this point, ptr is at the start of a line. We need to find the length    /* At this point, ptr is at the start of a line. We need to find the length
1089    of the subject string to pass to pcre_exec(). In multiline mode, it is the    of the subject string to pass to pcre_exec(). In multiline mode, it is the
1090    length remainder of the data in the buffer. Otherwise, it is the length of    length remainder of the data in the buffer. Otherwise, it is the length of
1091    the next line. After matching, we always advance by the length of the next    the next line, excluding the terminating newline. After matching, we always
1092    line. In multiline mode the PCRE_FIRSTLINE option is used for compiling, so    advance by the length of the next line. In multiline mode the PCRE_FIRSTLINE
1093    that any match is constrained to be in the first line. */    option is used for compiling, so that any match is constrained to be in the
1094      first line. */
1095    
1096    t = end_of_line(t, endptr, &endlinelength);    t = end_of_line(t, endptr, &endlinelength);
1097    linelength = t - ptr - endlinelength;    linelength = t - ptr - endlinelength;
# Line 867  while (ptr < endptr) Line 1106  while (ptr < endptr)
1106        #include <time.h>        #include <time.h>
1107        struct timeval start_time, end_time;        struct timeval start_time, end_time;
1108        struct timezone dummy;        struct timezone dummy;
1109          int i;
1110    
1111        if (jfriedl_XT)        if (jfriedl_XT)
1112        {        {
# Line 875  while (ptr < endptr) Line 1115  while (ptr < endptr)
1115            ptr = malloc(newlen + 1);            ptr = malloc(newlen + 1);
1116            if (!ptr) {            if (!ptr) {
1117                    printf("out of memory");                    printf("out of memory");
1118                    exit(2);                    pcregrep_exit(2);
1119            }            }
1120            endptr = ptr;            endptr = ptr;
1121            strcpy(endptr, jfriedl_prefix); endptr += strlen(jfriedl_prefix);            strcpy(endptr, jfriedl_prefix); endptr += strlen(jfriedl_prefix);
# Line 892  while (ptr < endptr) Line 1132  while (ptr < endptr)
1132    
1133    
1134        for (i = 0; i < jfriedl_XR; i++)        for (i = 0; i < jfriedl_XR; i++)
1135            match = (pcre_exec(pattern_list[0], hints_list[0], ptr, length, 0, 0, offsets, 99) >= 0);            match = (pcre_exec(pattern_list[0], hints_list[0], ptr, length, 0,
1136                  PCRE_NOTEMPTY, offsets, OFFSET_SIZE) >= 0);
1137    
1138        if (gettimeofday(&end_time, &dummy) != 0)        if (gettimeofday(&end_time, &dummy) != 0)
1139                perror("bad gettimeofday");                perror("bad gettimeofday");
# Line 906  while (ptr < endptr) Line 1147  while (ptr < endptr)
1147    }    }
1148  #endif  #endif
1149    
1150      /* We come back here after a match when the -o option (only_matching) is set,
1151      in order to find any further matches in the same line. */
1152    
1153    /* Run through all the patterns until one matches. Note that we don't include    ONLY_MATCHING_RESTART:
   the final newline in the subject string. */  
1154    
1155    for (i = 0; i < pattern_count; i++)    /* Run through all the patterns until one matches or there is an error other
1156      {    than NOMATCH. This code is in a subroutine so that it can be re-used for
1157      mrc = pcre_exec(pattern_list[i], hints_list[i], ptr, length, 0, 0,    finding subsequent matches when colouring matched lines. */
1158        offsets, 99);  
1159      if (mrc >= 0) { match = TRUE; break; }    match = match_patterns(matchptr, length, startoffset, offsets, &mrc);
     if (mrc != PCRE_ERROR_NOMATCH)  
       {  
       fprintf(stderr, "pcregrep: pcre_exec() error %d while matching ", mrc);  
       if (pattern_count > 1) fprintf(stderr, "pattern number %d to ", i+1);  
       fprintf(stderr, "this line:\n");  
       fwrite(ptr, 1, linelength, stderr);   /* In case binary zero included */  
       fprintf(stderr, "\n");  
       if (error_count == 0 &&  
           (mrc == PCRE_ERROR_MATCHLIMIT || mrc == PCRE_ERROR_RECURSIONLIMIT))  
         {  
         fprintf(stderr, "pcregrep: error %d means that a resource limit "  
           "was exceeded\n", mrc);  
         fprintf(stderr, "pcregrep: check your regex for nested unlimited loops\n");  
         }  
       if (error_count++ > 20)  
         {  
         fprintf(stderr, "pcregrep: too many errors - abandoned\n");  
         exit(2);  
         }  
       match = invert;    /* No more matching; don't show the line again */  
       break;  
       }  
     }  
1160    
1161    /* If it's a match or a not-match (as required), do what's wanted. */    /* If it's a match or a not-match (as required), do what's wanted. */
1162    
# Line 956  while (ptr < endptr) Line 1175  while (ptr < endptr)
1175      /* If all we want is a file name, there is no need to scan any more lines      /* If all we want is a file name, there is no need to scan any more lines
1176      in the file. */      in the file. */
1177    
1178      else if (filenames == FN_ONLY)      else if (filenames == FN_MATCH_ONLY)
1179        {        {
1180        fprintf(stdout, "%s\n", printname);        fprintf(stdout, "%s\n", printname);
1181        return 0;        return 0;
# Line 966  while (ptr < endptr) Line 1185  while (ptr < endptr)
1185    
1186      else if (quiet) return 0;      else if (quiet) return 0;
1187    
1188      /* The --only-matching option prints just the substring that matched, and      /* The --only-matching option prints just the substring that matched, or a
1189      does not pring any context. */      captured portion of it, as long as this string is not empty, and the
1190        --file-offsets and --line-offsets options output offsets for the matching
1191        substring (they both force --only-matching = 0). None of these options
1192        prints any context. Afterwards, adjust the start and then jump back to look
1193        for further matches in the same line. If we are in invert mode, however,
1194        nothing is printed and we do not restart - this could still be useful
1195        because the return code is set. */
1196    
1197      else if (only_matching)      else if (only_matching >= 0)
1198        {        {
1199        if (printname != NULL) fprintf(stdout, "%s:", printname);        if (!invert)
1200        if (number) fprintf(stdout, "%d:", linenumber);          {
1201        fwrite(ptr + offsets[0], 1, offsets[1] - offsets[0], stdout);          if (printname != NULL) fprintf(stdout, "%s:", printname);
1202        fprintf(stdout, "\n");          if (number) fprintf(stdout, "%d:", linenumber);
1203            if (line_offsets)
1204              fprintf(stdout, "%d,%d\n", (int)(matchptr + offsets[0] - ptr),
1205                offsets[1] - offsets[0]);
1206            else if (file_offsets)
1207              fprintf(stdout, "%d,%d\n",
1208                (int)(filepos + matchptr + offsets[0] - ptr),
1209                offsets[1] - offsets[0]);
1210            else if (only_matching < mrc)
1211              {
1212              int plen = offsets[2*only_matching + 1] - offsets[2*only_matching];
1213              if (plen > 0)
1214                {
1215                if (do_colour) fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1216                FWRITE(matchptr + offsets[only_matching*2], 1, plen, stdout);
1217                if (do_colour) fprintf(stdout, "%c[00m", 0x1b);
1218                fprintf(stdout, "\n");
1219                }
1220              }
1221            else if (printname != NULL || number) fprintf(stdout, "\n");
1222            match = FALSE;
1223            if (line_buffered) fflush(stdout);
1224            rc = 0;                      /* Had some success */
1225            startoffset = offsets[1];    /* Restart after the match */
1226            goto ONLY_MATCHING_RESTART;
1227            }
1228        }        }
1229    
1230      /* This is the default case when none of the above options is set. We print      /* This is the default case when none of the above options is set. We print
# Line 1008  while (ptr < endptr) Line 1258  while (ptr < endptr)
1258            if (printname != NULL) fprintf(stdout, "%s-", printname);            if (printname != NULL) fprintf(stdout, "%s-", printname);
1259            if (number) fprintf(stdout, "%d-", lastmatchnumber++);            if (number) fprintf(stdout, "%d-", lastmatchnumber++);
1260            pp = end_of_line(pp, endptr, &ellength);            pp = end_of_line(pp, endptr, &ellength);
1261            fwrite(lastmatchrestart, 1, pp - lastmatchrestart, stdout);            FWRITE(lastmatchrestart, 1, pp - lastmatchrestart, stdout);
1262            lastmatchrestart = pp;            lastmatchrestart = pp;
1263            }            }
1264          if (lastmatchrestart != ptr) hyphenpending = TRUE;          if (lastmatchrestart != ptr) hyphenpending = TRUE;
# Line 1048  while (ptr < endptr) Line 1298  while (ptr < endptr)
1298            if (printname != NULL) fprintf(stdout, "%s-", printname);            if (printname != NULL) fprintf(stdout, "%s-", printname);
1299            if (number) fprintf(stdout, "%d-", linenumber - linecount--);            if (number) fprintf(stdout, "%d-", linenumber - linecount--);
1300            pp = end_of_line(pp, endptr, &ellength);            pp = end_of_line(pp, endptr, &ellength);
1301            fwrite(p, 1, pp - p, stdout);            FWRITE(p, 1, pp - p, stdout);
1302            p = pp;            p = pp;
1303            }            }
1304          }          }
# Line 1064  while (ptr < endptr) Line 1314  while (ptr < endptr)
1314    
1315        /* In multiline mode, we want to print to the end of the line in which        /* In multiline mode, we want to print to the end of the line in which
1316        the end of the matched string is found, so we adjust linelength and the        the end of the matched string is found, so we adjust linelength and the
1317        line number appropriately. Because the PCRE_FIRSTLINE option is set, the        line number appropriately, but only when there actually was a match
1318        start of the match will always be before the first newline sequence. */        (invert not set). Because the PCRE_FIRSTLINE option is set, the start of
1319          the match will always be before the first newline sequence. */
1320    
1321        if (multiline)        if (multiline & !invert)
1322          {          {
         int ellength;  
1323          char *endmatch = ptr + offsets[1];          char *endmatch = ptr + offsets[1];
1324          t = ptr;          t = ptr;
1325          while (t < endmatch)          while (t < endmatch)
1326            {            {
1327            t = end_of_line(t, endptr, &ellength);            t = end_of_line(t, endptr, &endlinelength);
1328            if (t <= endmatch) linenumber++; else break;            if (t < endmatch) linenumber++; else break;
1329            }            }
1330          endmatch = end_of_line(endmatch, endptr, &ellength);          linelength = t - ptr - endlinelength;
         linelength = endmatch - ptr - ellength;  
1331          }          }
1332    
1333        /*** NOTE: Use only fwrite() to output the data line, so that binary        /*** NOTE: Use only fwrite() to output the data line, so that binary
# Line 1093  while (ptr < endptr) Line 1342  while (ptr < endptr)
1342          {          {
1343          int first = S_arg * 2;          int first = S_arg * 2;
1344          int last  = first + 1;          int last  = first + 1;
1345          fwrite(ptr, 1, offsets[first], stdout);          FWRITE(ptr, 1, offsets[first], stdout);
1346          fprintf(stdout, "X");          fprintf(stdout, "X");
1347          fwrite(ptr + offsets[last], 1, linelength - offsets[last], stdout);          FWRITE(ptr + offsets[last], 1, linelength - offsets[last], stdout);
1348          }          }
1349        else        else
1350  #endif  #endif
1351    
1352        /* We have to split the line(s) up if colouring. */        /* We have to split the line(s) up if colouring, and search for further
1353          matches, but not of course if the line is a non-match. */
1354    
1355        if (do_colour)        if (do_colour && !invert)
1356          {          {
1357          fwrite(ptr, 1, offsets[0], stdout);          int plength;
1358            FWRITE(ptr, 1, offsets[0], stdout);
1359          fprintf(stdout, "%c[%sm", 0x1b, colour_string);          fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1360          fwrite(ptr + offsets[0], 1, offsets[1] - offsets[0], stdout);          FWRITE(ptr + offsets[0], 1, offsets[1] - offsets[0], stdout);
1361          fprintf(stdout, "%c[00m", 0x1b);          fprintf(stdout, "%c[00m", 0x1b);
1362          fwrite(ptr + offsets[1], 1, linelength - offsets[1], stdout);          for (;;)
1363              {
1364              startoffset = offsets[1];
1365              if (startoffset >= linelength + endlinelength ||
1366                  !match_patterns(matchptr, length, startoffset, offsets, &mrc))
1367                break;
1368              FWRITE(matchptr + startoffset, 1, offsets[0] - startoffset, stdout);
1369              fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1370              FWRITE(matchptr + offsets[0], 1, offsets[1] - offsets[0], stdout);
1371              fprintf(stdout, "%c[00m", 0x1b);
1372              }
1373    
1374            /* In multiline mode, we may have already printed the complete line
1375            and its line-ending characters (if they matched the pattern), so there
1376            may be no more to print. */
1377    
1378            plength = (linelength + endlinelength) - startoffset;
1379            if (plength > 0) FWRITE(ptr + startoffset, 1, plength, stdout);
1380          }          }
1381        else fwrite(ptr, 1, linelength + endlinelength, stdout);  
1382          /* Not colouring; no need to search for further matches */
1383    
1384          else FWRITE(ptr, 1, linelength + endlinelength, stdout);
1385        }        }
1386    
1387      /* End of doing what has to be done for a match */      /* End of doing what has to be done for a match. If --line-buffered was
1388        given, flush the output. */
1389    
1390        if (line_buffered) fflush(stdout);
1391      rc = 0;    /* Had some success */      rc = 0;    /* Had some success */
1392    
1393      /* Remember where the last match happened for after_context. We remember      /* Remember where the last match happened for after_context. We remember
# Line 1124  while (ptr < endptr) Line 1397  while (ptr < endptr)
1397      lastmatchnumber = linenumber + 1;      lastmatchnumber = linenumber + 1;
1398      }      }
1399    
1400    /* Advance to after the newline and increment the line number. */    /* For a match in multiline inverted mode (which of course did not cause
1401      anything to be printed), we have to move on to the end of the match before
1402      proceeding. */
1403    
1404      if (multiline && invert && match)
1405        {
1406        int ellength;
1407        char *endmatch = ptr + offsets[1];
1408        t = ptr;
1409        while (t < endmatch)
1410          {
1411          t = end_of_line(t, endptr, &ellength);
1412          if (t <= endmatch) linenumber++; else break;
1413          }
1414        endmatch = end_of_line(endmatch, endptr, &ellength);
1415        linelength = endmatch - ptr - ellength;
1416        }
1417    
1418      /* Advance to after the newline and increment the line number. The file
1419      offset to the current line is maintained in filepos. */
1420    
1421    ptr += linelength + endlinelength;    ptr += linelength + endlinelength;
1422      filepos += (int)(linelength + endlinelength);
1423    linenumber++;    linenumber++;
1424    
1425      /* If input is line buffered, and the buffer is not yet full, read another
1426      line and add it into the buffer. */
1427    
1428      if (input_line_buffered && bufflength < sizeof(buffer))
1429        {
1430        int add = read_one_line(ptr, sizeof(buffer) - (ptr - buffer), in);
1431        bufflength += add;
1432        endptr += add;
1433        }
1434    
1435    /* If we haven't yet reached the end of the file (the buffer is full), and    /* If we haven't yet reached the end of the file (the buffer is full), and
1436    the current point is in the top 1/3 of the buffer, slide the buffer down by    the current point is in the top 1/3 of the buffer, slide the buffer down by
1437    1/3 and refill it. Before we do this, if some unprinted "after" lines are    1/3 and refill it. Before we do this, if some unprinted "after" lines are
# Line 1148  while (ptr < endptr) Line 1451  while (ptr < endptr)
1451    
1452      memmove(buffer, buffer + MBUFTHIRD, 2*MBUFTHIRD);      memmove(buffer, buffer + MBUFTHIRD, 2*MBUFTHIRD);
1453      ptr -= MBUFTHIRD;      ptr -= MBUFTHIRD;
1454      bufflength = 2*MBUFTHIRD + fread(buffer + 2*MBUFTHIRD, 1, MBUFTHIRD, in);  
1455    #ifdef SUPPORT_LIBZ
1456        if (frtype == FR_LIBZ)
1457          bufflength = 2*MBUFTHIRD +
1458            gzread (ingz, buffer + 2*MBUFTHIRD, MBUFTHIRD);
1459        else
1460    #endif
1461    
1462    #ifdef SUPPORT_LIBBZ2
1463        if (frtype == FR_LIBBZ2)
1464          bufflength = 2*MBUFTHIRD +
1465            BZ2_bzread(inbz2, buffer + 2*MBUFTHIRD, MBUFTHIRD);
1466        else
1467    #endif
1468    
1469        bufflength = 2*MBUFTHIRD +
1470          (input_line_buffered?
1471           read_one_line(buffer + 2*MBUFTHIRD, MBUFTHIRD, in) :
1472           fread(buffer + 2*MBUFTHIRD, 1, MBUFTHIRD, in));
1473      endptr = buffer + bufflength;      endptr = buffer + bufflength;
1474    
1475      /* Adjust any last match point */      /* Adjust any last match point */
# Line 1160  while (ptr < endptr) Line 1481  while (ptr < endptr)
1481  /* End of file; print final "after" lines if wanted; do_after_lines sets  /* End of file; print final "after" lines if wanted; do_after_lines sets
1482  hyphenpending if it prints something. */  hyphenpending if it prints something. */
1483    
1484  if (!only_matching && !count_only)  if (only_matching < 0 && !count_only)
1485    {    {
1486    do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);    do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);
1487    hyphenpending |= endhyphenpending;    hyphenpending |= endhyphenpending;
# Line 1179  if (filenames == FN_NOMATCH_ONLY) Line 1500  if (filenames == FN_NOMATCH_ONLY)
1500    
1501  if (count_only)  if (count_only)
1502    {    {
1503    if (printname != NULL) fprintf(stdout, "%s:", printname);    if (count > 0 || !omit_zero_count)
1504    fprintf(stdout, "%d\n", count);      {
1505        if (printname != NULL && filenames != FN_NONE)
1506          fprintf(stdout, "%s:", printname);
1507        fprintf(stdout, "%d\n", count);
1508        }
1509    }    }
1510    
1511  return rc;  return rc;
# Line 1212  grep_or_recurse(char *pathname, BOOL dir Line 1537  grep_or_recurse(char *pathname, BOOL dir
1537  {  {
1538  int rc = 1;  int rc = 1;
1539  int sep;  int sep;
1540  FILE *in;  int frtype;
1541    int pathlen;
1542    void *handle;
1543    FILE *in = NULL;           /* Ensure initialized */
1544    
1545    #ifdef SUPPORT_LIBZ
1546    gzFile ingz = NULL;
1547    #endif
1548    
1549    #ifdef SUPPORT_LIBBZ2
1550    BZFILE *inbz2 = NULL;
1551    #endif
1552    
1553  /* If the file name is "-" we scan stdin */  /* If the file name is "-" we scan stdin */
1554    
1555  if (strcmp(pathname, "-") == 0)  if (strcmp(pathname, "-") == 0)
1556    {    {
1557    return pcregrep(stdin,    return pcregrep(stdin, FR_PLAIN,
1558      (filenames > FN_DEFAULT || (filenames == FN_DEFAULT && !only_one_at_top))?      (filenames > FN_DEFAULT || (filenames == FN_DEFAULT && !only_one_at_top))?
1559        stdin_name : NULL);        stdin_name : NULL);
1560    }    }
1561    
   
1562  /* If the file is a directory, skip if skipping or if we are recursing, scan  /* If the file is a directory, skip if skipping or if we are recursing, scan
1563  each file within it, subject to any include or exclude patterns that were set.  each file and directory within it, subject to any include or exclude patterns
1564  The scanning code is localized so it can be made system-specific. */  that were set. The scanning code is localized so it can be made
1565    system-specific. */
1566    
1567  if ((sep = isdirectory(pathname)) != 0)  if ((sep = isdirectory(pathname)) != 0)
1568    {    {
# Line 1247  if ((sep = isdirectory(pathname)) != 0) Line 1583  if ((sep = isdirectory(pathname)) != 0)
1583    
1584      while ((nextfile = readdirectory(dir)) != NULL)      while ((nextfile = readdirectory(dir)) != NULL)
1585        {        {
1586        int frc, blen;        int frc, nflen;
1587        sprintf(buffer, "%.512s%c%.128s", pathname, sep, nextfile);        sprintf(buffer, "%.512s%c%.128s", pathname, sep, nextfile);
1588        blen = strlen(buffer);        nflen = (int)(strlen(nextfile));
1589    
1590          if (isdirectory(buffer))
1591            {
1592            if (exclude_dir_compiled != NULL &&
1593                pcre_exec(exclude_dir_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) >= 0)
1594              continue;
1595    
1596            if (include_dir_compiled != NULL &&
1597                pcre_exec(include_dir_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) < 0)
1598              continue;
1599            }
1600          else
1601            {
1602            if (exclude_compiled != NULL &&
1603                pcre_exec(exclude_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) >= 0)
1604              continue;
1605    
1606        if (exclude_compiled != NULL &&          if (include_compiled != NULL &&
1607            pcre_exec(exclude_compiled, NULL, buffer, blen, 0, 0, NULL, 0) >= 0)              pcre_exec(include_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) < 0)
1608          continue;            continue;
1609            }
       if (include_compiled != NULL &&  
           pcre_exec(include_compiled, NULL, buffer, blen, 0, 0, NULL, 0) < 0)  
         continue;  
1610    
1611        frc = grep_or_recurse(buffer, dir_recurse, FALSE);        frc = grep_or_recurse(buffer, dir_recurse, FALSE);
1612        if (frc > 1) rc = frc;        if (frc > 1) rc = frc;
# Line 1280  skipping was not requested. The scan pro Line 1629  skipping was not requested. The scan pro
1629  argument at top level, we don't show the file name, unless we are only showing  argument at top level, we don't show the file name, unless we are only showing
1630  the file name, or the filename was forced (-H). */  the file name, or the filename was forced (-H). */
1631    
1632  in = fopen(pathname, "r");  pathlen = (int)(strlen(pathname));
1633  if (in == NULL)  
1634    /* Open using zlib if it is supported and the file name ends with .gz. */
1635    
1636    #ifdef SUPPORT_LIBZ
1637    if (pathlen > 3 && strcmp(pathname + pathlen - 3, ".gz") == 0)
1638      {
1639      ingz = gzopen(pathname, "rb");
1640      if (ingz == NULL)
1641        {
1642        if (!silent)
1643          fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pathname,
1644            strerror(errno));
1645        return 2;
1646        }
1647      handle = (void *)ingz;
1648      frtype = FR_LIBZ;
1649      }
1650    else
1651    #endif
1652    
1653    /* Otherwise open with bz2lib if it is supported and the name ends with .bz2. */
1654    
1655    #ifdef SUPPORT_LIBBZ2
1656    if (pathlen > 4 && strcmp(pathname + pathlen - 4, ".bz2") == 0)
1657      {
1658      inbz2 = BZ2_bzopen(pathname, "rb");
1659      handle = (void *)inbz2;
1660      frtype = FR_LIBBZ2;
1661      }
1662    else
1663    #endif
1664    
1665    /* Otherwise use plain fopen(). The label is so that we can come back here if
1666    an attempt to read a .bz2 file indicates that it really is a plain file. */
1667    
1668    #ifdef SUPPORT_LIBBZ2
1669    PLAIN_FILE:
1670    #endif
1671      {
1672      in = fopen(pathname, "rb");
1673      handle = (void *)in;
1674      frtype = FR_PLAIN;
1675      }
1676    
1677    /* All the opening methods return errno when they fail. */
1678    
1679    if (handle == NULL)
1680    {    {
1681    if (!silent)    if (!silent)
1682      fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pathname,      fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pathname,
# Line 1289  if (in == NULL) Line 1684  if (in == NULL)
1684    return 2;    return 2;
1685    }    }
1686    
1687  rc = pcregrep(in, (filenames > FN_DEFAULT ||  /* Now grep the file */
1688    
1689    rc = pcregrep(handle, frtype, (filenames > FN_DEFAULT ||
1690    (filenames == FN_DEFAULT && !only_one_at_top))? pathname : NULL);    (filenames == FN_DEFAULT && !only_one_at_top))? pathname : NULL);
1691    
1692    /* Close in an appropriate manner. */
1693    
1694    #ifdef SUPPORT_LIBZ
1695    if (frtype == FR_LIBZ)
1696      gzclose(ingz);
1697    else
1698    #endif
1699    
1700    /* If it is a .bz2 file and the result is 2, it means that the first attempt to
1701    read failed. If the error indicates that the file isn't in fact bzipped, try
1702    again as a normal file. */
1703    
1704    #ifdef SUPPORT_LIBBZ2
1705    if (frtype == FR_LIBBZ2)
1706      {
1707      if (rc == 2)
1708        {
1709        int errnum;
1710        const char *err = BZ2_bzerror(inbz2, &errnum);
1711        if (errnum == BZ_DATA_ERROR_MAGIC)
1712          {
1713          BZ2_bzclose(inbz2);
1714          goto PLAIN_FILE;
1715          }
1716        else if (!silent)
1717          fprintf(stderr, "pcregrep: Failed to read %s using bzlib: %s\n",
1718            pathname, err);
1719        }
1720      BZ2_bzclose(inbz2);
1721      }
1722    else
1723    #endif
1724    
1725    /* Normal file close */
1726    
1727  fclose(in);  fclose(in);
1728    
1729    /* Pass back the yield from pcregrep(). */
1730    
1731  return rc;  return rc;
1732  }  }
1733    
# Line 1313  for (op = optionlist; op->one_char != 0; Line 1748  for (op = optionlist; op->one_char != 0;
1748    if (op->one_char > 0) fprintf(stderr, "%c", op->one_char);    if (op->one_char > 0) fprintf(stderr, "%c", op->one_char);
1749    }    }
1750  fprintf(stderr, "] [long options] [pattern] [files]\n");  fprintf(stderr, "] [long options] [pattern] [files]\n");
1751  fprintf(stderr, "Type `pcregrep --help' for more information.\n");  fprintf(stderr, "Type `pcregrep --help' for more information and the long "
1752      "options.\n");
1753  return rc;  return rc;
1754  }  }
1755    
# Line 1332  option_item *op; Line 1768  option_item *op;
1768  printf("Usage: pcregrep [OPTION]... [PATTERN] [FILE1 FILE2 ...]\n");  printf("Usage: pcregrep [OPTION]... [PATTERN] [FILE1 FILE2 ...]\n");
1769  printf("Search for PATTERN in each FILE or standard input.\n");  printf("Search for PATTERN in each FILE or standard input.\n");
1770  printf("PATTERN must be present if neither -e nor -f is used.\n");  printf("PATTERN must be present if neither -e nor -f is used.\n");
1771  printf("\"-\" can be used as a file name to mean STDIN.\n\n");  printf("\"-\" can be used as a file name to mean STDIN.\n");
 printf("Example: pcregrep -i 'hello.*world' menu.h main.c\n\n");  
1772    
1773    #ifdef SUPPORT_LIBZ
1774    printf("Files whose names end in .gz are read using zlib.\n");
1775    #endif
1776    
1777    #ifdef SUPPORT_LIBBZ2
1778    printf("Files whose names end in .bz2 are read using bzlib2.\n");
1779    #endif
1780    
1781    #if defined SUPPORT_LIBZ || defined SUPPORT_LIBBZ2
1782    printf("Other files and the standard input are read as plain files.\n\n");
1783    #else
1784    printf("All files are read as plain files, without any interpretation.\n\n");
1785    #endif
1786    
1787    printf("Example: pcregrep -i 'hello.*world' menu.h main.c\n\n");
1788  printf("Options:\n");  printf("Options:\n");
1789    
1790  for (op = optionlist; op->one_char != 0; op++)  for (op = optionlist; op->one_char != 0; op++)
1791    {    {
1792    int n;    int n;
1793    char s[4];    char s[4];
1794    
1795      /* Two options were accidentally implemented and documented with underscores
1796      instead of hyphens in their names, something that was not noticed for quite a
1797      few releases. When fixing this, I left the underscored versions in the list
1798      in case people were using them. However, we don't want to display them in the
1799      help data. There are no other options that contain underscores, and we do not
1800      expect ever to implement such options. Therefore, just omit any option that
1801      contains an underscore. */
1802    
1803      if (strchr(op->long_name, '_') != NULL) continue;
1804    
1805    if (op->one_char > 0) sprintf(s, "-%c,", op->one_char); else strcpy(s, "   ");    if (op->one_char > 0) sprintf(s, "-%c,", op->one_char); else strcpy(s, "   ");
1806    printf("  %s --%s%n", s, op->long_name, &n);    n = 31 - printf("  %s --%s", s, op->long_name);
   n = 30 - n;  
1807    if (n < 1) n = 1;    if (n < 1) n = 1;
1808    printf("%.*s%s\n", n, "                    ", op->help_text);    printf("%.*s%s\n", n, "                     ", op->help_text);
1809    }    }
1810    
1811  printf("\nWhen reading patterns from a file instead of using a command line option,\n");  printf("\nWhen reading patterns from a file instead of using a command line option,\n");
# Line 1368  handle_option(int letter, int options) Line 1828  handle_option(int letter, int options)
1828  {  {
1829  switch(letter)  switch(letter)
1830    {    {
1831    case N_HELP: help(); exit(0);    case N_FOFFSETS: file_offsets = TRUE; break;
1832      case N_HELP: help(); pcregrep_exit(0);
1833      case N_LOFFSETS: line_offsets = number = TRUE; break;
1834      case N_LBUFFER: line_buffered = TRUE; break;
1835    case 'c': count_only = TRUE; break;    case 'c': count_only = TRUE; break;
1836    case 'F': process_options |= PO_FIXED_STRINGS; break;    case 'F': process_options |= PO_FIXED_STRINGS; break;
1837    case 'H': filenames = FN_FORCE; break;    case 'H': filenames = FN_FORCE; break;
1838    case 'h': filenames = FN_NONE; break;    case 'h': filenames = FN_NONE; break;
1839    case 'i': options |= PCRE_CASELESS; break;    case 'i': options |= PCRE_CASELESS; break;
1840    case 'l': filenames = FN_ONLY; break;    case 'l': omit_zero_count = TRUE; filenames = FN_MATCH_ONLY; break;
1841    case 'L': filenames = FN_NOMATCH_ONLY; break;    case 'L': filenames = FN_NOMATCH_ONLY; break;
1842    case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break;    case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break;
1843    case 'n': number = TRUE; break;    case 'n': number = TRUE; break;
1844    case 'o': only_matching = TRUE; break;    case 'o': only_matching = 0; break;
1845    case 'q': quiet = TRUE; break;    case 'q': quiet = TRUE; break;
1846    case 'r': dee_action = dee_RECURSE; break;    case 'r': dee_action = dee_RECURSE; break;
1847    case 's': silent = TRUE; break;    case 's': silent = TRUE; break;
# Line 1389  switch(letter) Line 1852  switch(letter)
1852    
1853    case 'V':    case 'V':
1854    fprintf(stderr, "pcregrep version %s\n", pcre_version());    fprintf(stderr, "pcregrep version %s\n", pcre_version());
1855    exit(0);    pcregrep_exit(0);
1856    break;    break;
1857    
1858    default:    default:
1859    fprintf(stderr, "pcregrep: Unknown option -%c\n", letter);    fprintf(stderr, "pcregrep: Unknown option -%c\n", letter);
1860    exit(usage(2));    pcregrep_exit(usage(2));
1861    }    }
1862    
1863  return options;  return options;
# Line 1559  const char *error; Line 2022  const char *error;
2022    
2023  /* Set the default line ending value from the default in the PCRE library;  /* Set the default line ending value from the default in the PCRE library;
2024  "lf", "cr", "crlf", and "any" are supported. Anything else is treated as "lf".  "lf", "cr", "crlf", and "any" are supported. Anything else is treated as "lf".
2025  */  Note that the return values from pcre_config(), though derived from the ASCII
2026    codes, are the same in EBCDIC environments, so we must use the actual values
2027    rather than escapes such as as '\r'. */
2028    
2029  (void)pcre_config(PCRE_CONFIG_NEWLINE, &i);  (void)pcre_config(PCRE_CONFIG_NEWLINE, &i);
2030  switch(i)  switch(i)
2031    {    {
2032    default:                 newline = (char *)"lf"; break;    default:               newline = (char *)"lf"; break;
2033    case '\r':               newline = (char *)"cr"; break;    case 13:               newline = (char *)"cr"; break;
2034    case ('\r' << 8) | '\n': newline = (char *)"crlf"; break;    case (13 << 8) | 10:   newline = (char *)"crlf"; break;
2035    case -1:                 newline = (char *)"any"; break;    case -1:               newline = (char *)"any"; break;
2036    case -2:                 newline = (char *)"anycrlf"; break;    case -2:               newline = (char *)"anycrlf"; break;
2037    }    }
2038    
2039  /* Process the options */  /* Process the options */
# Line 1588  for (i = 1; i < argc; i++) Line 2053  for (i = 1; i < argc; i++)
2053    if (argv[i][1] == 0)    if (argv[i][1] == 0)
2054      {      {
2055      if (pattern_filename != NULL || pattern_count > 0) break;      if (pattern_filename != NULL || pattern_count > 0) break;
2056        else exit(usage(2));        else pcregrep_exit(usage(2));
2057      }      }
2058    
2059    /* Handle a long name option, or -- to terminate the options */    /* Handle a long name option, or -- to terminate the options */
# Line 1610  for (i = 1; i < argc; i++) Line 2075  for (i = 1; i < argc; i++)
2075      Some options have variations in the long name spelling: specifically, we      Some options have variations in the long name spelling: specifically, we
2076      allow "regexp" because GNU grep allows it, though I personally go along      allow "regexp" because GNU grep allows it, though I personally go along
2077      with Jeffrey Friedl and Larry Wall in preferring "regex" without the "p".      with Jeffrey Friedl and Larry Wall in preferring "regex" without the "p".
2078      These options are entered in the table as "regex(p)". No option is in both      These options are entered in the table as "regex(p)". Options can be in
2079      these categories, fortunately. */      both these categories. */
2080    
2081      for (op = optionlist; op->one_char != 0; op++)      for (op = optionlist; op->one_char != 0; op++)
2082        {        {
2083        char *opbra = strchr(op->long_name, '(');        char *opbra = strchr(op->long_name, '(');
2084        char *equals = strchr(op->long_name, '=');        char *equals = strchr(op->long_name, '=');
2085        if (opbra == NULL)     /* Not a (p) case */  
2086          /* Handle options with only one spelling of the name */
2087    
2088          if (opbra == NULL)     /* Does not contain '(' */
2089          {          {
2090          if (equals == NULL)  /* Not thing=data case */          if (equals == NULL)  /* Not thing=data case */
2091            {            {
# Line 1625  for (i = 1; i < argc; i++) Line 2093  for (i = 1; i < argc; i++)
2093            }            }
2094          else                 /* Special case xxx=data */          else                 /* Special case xxx=data */
2095            {            {
2096            int oplen = equals - op->long_name;            int oplen = (int)(equals - op->long_name);
2097            int arglen = (argequals == NULL)? (int)strlen(arg) : argequals - arg;            int arglen = (argequals == NULL)?
2098                (int)strlen(arg) : (int)(argequals - arg);
2099            if (oplen == arglen && strncmp(arg, op->long_name, oplen) == 0)            if (oplen == arglen && strncmp(arg, op->long_name, oplen) == 0)
2100              {              {
2101              option_data = arg + arglen;              option_data = arg + arglen;
# Line 1639  for (i = 1; i < argc; i++) Line 2108  for (i = 1; i < argc; i++)
2108              }              }
2109            }            }
2110          }          }
2111        else                   /* Special case xxxx(p) */  
2112          /* Handle options with an alternate spelling of the name */
2113    
2114          else
2115          {          {
2116          char buff1[24];          char buff1[24];
2117          char buff2[24];          char buff2[24];
2118          int baselen = opbra - op->long_name;  
2119            int baselen = (int)(opbra - op->long_name);
2120            int fulllen = (int)(strchr(op->long_name, ')') - op->long_name + 1);
2121            int arglen = (argequals == NULL || equals == NULL)?
2122              (int)strlen(arg) : (int)(argequals - arg);
2123    
2124          sprintf(buff1, "%.*s", baselen, op->long_name);          sprintf(buff1, "%.*s", baselen, op->long_name);
2125          sprintf(buff2, "%s%.*s", buff1,          sprintf(buff2, "%s%.*s", buff1, fulllen - baselen - 2, opbra + 1);
2126            (int)strlen(op->long_name) - baselen - 2, opbra + 1);  
2127          if (strcmp(arg, buff1) == 0 || strcmp(arg, buff2) == 0)          if (strncmp(arg, buff1, arglen) == 0 ||
2128               strncmp(arg, buff2, arglen) == 0)
2129              {
2130              if (equals != NULL && argequals != NULL)
2131                {
2132                option_data = argequals;
2133                if (*option_data == '=')
2134                  {
2135                  option_data++;
2136                  longopwasequals = TRUE;
2137                  }
2138                }
2139            break;            break;
2140              }
2141          }          }
2142        }        }
2143    
2144      if (op->one_char == 0)      if (op->one_char == 0)
2145        {        {
2146        fprintf(stderr, "pcregrep: Unknown option %s\n", argv[i]);        fprintf(stderr, "pcregrep: Unknown option %s\n", argv[i]);
2147        exit(usage(2));        pcregrep_exit(usage(2));
2148        }        }
2149      }      }
2150    
   
2151    /* Jeffrey Friedl's debugging harness uses these additional options which    /* Jeffrey Friedl's debugging harness uses these additional options which
2152    are not in the right form for putting in the option table because they use    are not in the right form for putting in the option table because they use
2153    only one hyphen, yet are more than one character long. By putting them    only one hyphen, yet are more than one character long. By putting them
# Line 1693  for (i = 1; i < argc; i++) Line 2181  for (i = 1; i < argc; i++)
2181      while (*s != 0)      while (*s != 0)
2182        {        {
2183        for (op = optionlist; op->one_char != 0; op++)        for (op = optionlist; op->one_char != 0; op++)
2184          { if (*s == op->one_char) break; }          {
2185            if (*s == op->one_char) break;
2186            }
2187        if (op->one_char == 0)        if (op->one_char == 0)
2188          {          {
2189          fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n",          fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n",
2190            *s, argv[i]);            *s, argv[i]);
2191          exit(usage(2));          pcregrep_exit(usage(2));
2192            }
2193    
2194          /* Check for a single-character option that has data: OP_OP_NUMBER
2195          is used for one that either has a numerical number or defaults, i.e. the
2196          data is optional. If a digit follows, there is data; if not, carry on
2197          with other single-character options in the same string. */
2198    
2199          option_data = s+1;
2200          if (op->type == OP_OP_NUMBER)
2201            {
2202            if (isdigit((unsigned char)s[1])) break;
2203          }          }
2204        if (op->type != OP_NODATA || s[1] == 0)        else   /* Check for end or a dataless option */
2205          {          {
2206          option_data = s+1;          if (op->type != OP_NODATA || s[1] == 0) break;
         break;  
2207          }          }
2208    
2209          /* Handle a single-character option with no data, then loop for the
2210          next character in the string. */
2211    
2212        pcre_options = handle_option(*s++, pcre_options);        pcre_options = handle_option(*s++, pcre_options);
2213        }        }
2214      }      }
# Line 1721  for (i = 1; i < argc; i++) Line 2225  for (i = 1; i < argc; i++)
2225    
2226    /* If the option type is OP_OP_STRING or OP_OP_NUMBER, it's an option that    /* If the option type is OP_OP_STRING or OP_OP_NUMBER, it's an option that
2227    either has a value or defaults to something. It cannot have data in a    either has a value or defaults to something. It cannot have data in a
2228    separate item. At the moment, the only such options are "colo(u)r" and    separate item. At the moment, the only such options are "colo(u)r",
2229    Jeffrey Friedl's special -S debugging option. */    "only-matching", and Jeffrey Friedl's special -S debugging option. */
2230    
2231    if (*option_data == 0 &&    if (*option_data == 0 &&
2232        (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER))        (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER))
# Line 1732  for (i = 1; i < argc; i++) Line 2236  for (i = 1; i < argc; i++)
2236        case N_COLOUR:        case N_COLOUR:
2237        colour_option = (char *)"auto";        colour_option = (char *)"auto";
2238        break;        break;
2239    
2240          case 'o':
2241          only_matching = 0;
2242          break;
2243    
2244  #ifdef JFRIEDL_DEBUG  #ifdef JFRIEDL_DEBUG
2245        case 'S':        case 'S':
2246        S_arg = 0;        S_arg = 0;
# Line 1748  for (i = 1; i < argc; i++) Line 2257  for (i = 1; i < argc; i++)
2257      if (i >= argc - 1 || longopwasequals)      if (i >= argc - 1 || longopwasequals)
2258        {        {
2259        fprintf(stderr, "pcregrep: Data missing after %s\n", argv[i]);        fprintf(stderr, "pcregrep: Data missing after %s\n", argv[i]);
2260        exit(usage(2));        pcregrep_exit(usage(2));
2261        }        }
2262      option_data = argv[++i];      option_data = argv[++i];
2263      }      }
# Line 1769  for (i = 1; i < argc; i++) Line 2278  for (i = 1; i < argc; i++)
2278    
2279    /* Otherwise, deal with single string or numeric data values. */    /* Otherwise, deal with single string or numeric data values. */
2280    
2281    else if (op->type != OP_NUMBER && op->type != OP_OP_NUMBER)    else if (op->type != OP_NUMBER && op->type != OP_LONGNUMBER &&
2282               op->type != OP_OP_NUMBER)
2283      {      {
2284      *((char **)op->dataptr) = option_data;      *((char **)op->dataptr) = option_data;
2285      }      }
2286    
2287      /* Avoid the use of strtoul() because SunOS4 doesn't have it. This is used
2288      only for unpicking arguments, so just keep it simple. */
2289    
2290    else    else
2291      {      {
2292      char *endptr;      unsigned long int n = 0;
2293      int n = strtoul(option_data, &endptr, 10);      char *endptr = option_data;
2294        while (*endptr != 0 && isspace((unsigned char)(*endptr))) endptr++;
2295        while (isdigit((unsigned char)(*endptr)))
2296          n = n * 10 + (int)(*endptr++ - '0');
2297      if (*endptr != 0)      if (*endptr != 0)
2298        {        {
2299        if (longop)        if (longop)
2300          {          {
2301          char *equals = strchr(op->long_name, '=');          char *equals = strchr(op->long_name, '=');
2302          int nlen = (equals == NULL)? (int)strlen(op->long_name) :          int nlen = (equals == NULL)? (int)strlen(op->long_name) :
2303            equals - op->long_name;            (int)(equals - op->long_name);
2304          fprintf(stderr, "pcregrep: Malformed number \"%s\" after --%.*s\n",          fprintf(stderr, "pcregrep: Malformed number \"%s\" after --%.*s\n",
2305            option_data, nlen, op->long_name);            option_data, nlen, op->long_name);
2306          }          }
2307        else        else
2308          fprintf(stderr, "pcregrep: Malformed number \"%s\" after -%c\n",          fprintf(stderr, "pcregrep: Malformed number \"%s\" after -%c\n",
2309            option_data, op->one_char);            option_data, op->one_char);
2310        exit(usage(2));        pcregrep_exit(usage(2));
2311        }        }
2312      *((int *)op->dataptr) = n;      if (op->type == OP_LONGNUMBER)
2313            *((unsigned long int *)op->dataptr) = n;
2314        else
2315            *((int *)op->dataptr) = n;
2316      }      }
2317    }    }
2318    
# Line 1805  if (both_context > 0) Line 2325  if (both_context > 0)
2325    if (before_context == 0) before_context = both_context;    if (before_context == 0) before_context = both_context;
2326    }    }
2327    
2328    /* Only one of --only-matching, --file-offsets, or --line-offsets is permitted.
2329    However, the latter two set only_matching. */
2330    
2331    if ((only_matching >= 0 && (file_offsets || line_offsets)) ||
2332        (file_offsets && line_offsets))
2333      {
2334      fprintf(stderr, "pcregrep: Cannot mix --only-matching, --file-offsets "
2335        "and/or --line-offsets\n");
2336      pcregrep_exit(usage(2));
2337      }
2338    
2339    if (file_offsets || line_offsets) only_matching = 0;
2340    
2341  /* If a locale has not been provided as an option, see if the LC_CTYPE or  /* If a locale has not been provided as an option, see if the LC_CTYPE or
2342  LC_ALL environment variable is set, and if so, use it. */  LC_ALL environment variable is set, and if so, use it. */
2343    
# Line 2012  for (j = 0; j < pattern_count; j++) Line 2545  for (j = 0; j < pattern_count; j++)
2545    hint_count++;    hint_count++;
2546    }    }
2547    
2548    /* If --match-limit or --recursion-limit was set, put the value(s) into the
2549    pcre_extra block for each pattern. */
2550    
2551    if (match_limit > 0 || match_limit_recursion > 0)
2552      {
2553      for (j = 0; j < pattern_count; j++)
2554        {
2555        if (hints_list[j] == NULL)
2556          {
2557          hints_list[j] = malloc(sizeof(pcre_extra));
2558          if (hints_list[j] == NULL)
2559            {
2560            fprintf(stderr, "pcregrep: malloc failed\n");
2561            pcregrep_exit(2);
2562            }
2563          }
2564        if (match_limit > 0)
2565          {
2566          hints_list[j]->flags |= PCRE_EXTRA_MATCH_LIMIT;
2567          hints_list[j]->match_limit = match_limit;
2568          }
2569        if (match_limit_recursion > 0)
2570          {
2571          hints_list[j]->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
2572          hints_list[j]->match_limit_recursion = match_limit_recursion;
2573          }
2574        }
2575      }
2576    
2577  /* If there are include or exclude patterns, compile them. */  /* If there are include or exclude patterns, compile them. */
2578    
2579  if (exclude_pattern != NULL)  if (exclude_pattern != NULL)
# Line 2038  if (include_pattern != NULL) Line 2600  if (include_pattern != NULL)
2600      }      }
2601    }    }
2602    
2603    if (exclude_dir_pattern != NULL)
2604      {
2605      exclude_dir_compiled = pcre_compile(exclude_dir_pattern, 0, &error, &errptr,
2606        pcretables);
2607      if (exclude_dir_compiled == NULL)
2608        {
2609        fprintf(stderr, "pcregrep: Error in 'exclude_dir' regex at offset %d: %s\n",
2610          errptr, error);
2611        goto EXIT2;
2612        }
2613      }
2614    
2615    if (include_dir_pattern != NULL)
2616      {
2617      include_dir_compiled = pcre_compile(include_dir_pattern, 0, &error, &errptr,
2618        pcretables);
2619      if (include_dir_compiled == NULL)
2620        {
2621        fprintf(stderr, "pcregrep: Error in 'include_dir' regex at offset %d: %s\n",
2622          errptr, error);
2623        goto EXIT2;
2624        }
2625      }
2626    
2627  /* If there are no further arguments, do the business on stdin and exit. */  /* If there are no further arguments, do the business on stdin and exit. */
2628    
2629  if (i >= argc)  if (i >= argc)
2630    {    {
2631    rc = pcregrep(stdin, (filenames > FN_DEFAULT)? stdin_name : NULL);    rc = pcregrep(stdin, FR_PLAIN, (filenames > FN_DEFAULT)? stdin_name : NULL);
2632    goto EXIT;    goto EXIT;
2633    }    }
2634    
# Line 2069  if (pattern_list != NULL) Line 2655  if (pattern_list != NULL)
2655    }    }
2656  if (hints_list != NULL)  if (hints_list != NULL)
2657    {    {
2658    for (i = 0; i < hint_count; i++) free(hints_list[i]);    for (i = 0; i < hint_count; i++)
2659        {
2660        if (hints_list[i] != NULL) free(hints_list[i]);
2661        }
2662    free(hints_list);    free(hints_list);
2663    }    }
2664  return rc;  pcregrep_exit(rc);
2665    
2666  EXIT2:  EXIT2:
2667  rc = 2;  rc = 2;
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