/[pcre]/code/trunk/pcregrep.c
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Diff of /code/trunk/pcregrep.c

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revision 904 by ph10, Mon Jan 23 17:30:49 2012 UTC revision 944 by ph10, Tue Feb 28 16:49:21 2012 UTC
# Line 147  static int pattern_count = 0; Line 147  static int pattern_count = 0;
147  static pcre **pattern_list = NULL;  static pcre **pattern_list = NULL;
148  static pcre_extra **hints_list = NULL;  static pcre_extra **hints_list = NULL;
149    
150    static char *file_list = NULL;
151  static char *include_pattern = NULL;  static char *include_pattern = NULL;
152  static char *exclude_pattern = NULL;  static char *exclude_pattern = NULL;
153  static char *include_dir_pattern = NULL;  static char *include_dir_pattern = NULL;
# Line 225  used to identify them. */ Line 226  used to identify them. */
226  #define N_M_LIMIT_REC  (-14)  #define N_M_LIMIT_REC  (-14)
227  #define N_BUFSIZE      (-15)  #define N_BUFSIZE      (-15)
228  #define N_NOJIT        (-16)  #define N_NOJIT        (-16)
229    #define N_FILE_LIST    (-17)
230    
231  static option_item optionlist[] = {  static option_item optionlist[] = {
232    { OP_NODATA,     N_NULL,   NULL,              "",              "  terminate options" },    { OP_NODATA,     N_NULL,   NULL,              "",              "  terminate options" },
# Line 241  static option_item optionlist[] = { Line 243  static option_item optionlist[] = {
243    { OP_PATLIST,    'e',      NULL,              "regex(p)=pattern", "specify pattern (may be used more than once)" },    { OP_PATLIST,    'e',      NULL,              "regex(p)=pattern", "specify pattern (may be used more than once)" },
244    { 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" },
245    { OP_STRING,     'f',      &pattern_filename, "file=path",     "read patterns from file" },    { OP_STRING,     'f',      &pattern_filename, "file=path",     "read patterns from file" },
246      { OP_STRING,     N_FILE_LIST, &file_list,     "file-list=path","read files to search from file" },
247    { OP_NODATA,     N_FOFFSETS, NULL,            "file-offsets",  "output file offsets, not text" },    { OP_NODATA,     N_FOFFSETS, NULL,            "file-offsets",  "output file offsets, not text" },
248    { OP_NODATA,     'H',      NULL,              "with-filename", "force the prefixing filename on output" },    { OP_NODATA,     'H',      NULL,              "with-filename", "force the prefixing filename on output" },
249    { OP_NODATA,     'h',      NULL,              "no-filename",   "suppress the prefixing filename on output" },    { OP_NODATA,     'h',      NULL,              "no-filename",   "suppress the prefixing filename on output" },
# Line 1851  for (op = optionlist; op->one_char != 0; Line 1854  for (op = optionlist; op->one_char != 0;
1854    
1855  printf("\nNumbers may be followed by K or M, e.g. --buffer-size=100K.\n");  printf("\nNumbers may be followed by K or M, e.g. --buffer-size=100K.\n");
1856  printf("The default value for --buffer-size is %d.\n", PCREGREP_BUFSIZE);  printf("The default value for --buffer-size is %d.\n", PCREGREP_BUFSIZE);
1857  printf("When reading patterns from a file instead of using a command line option,\n");  printf("When reading patterns or file names from a file, trailing white\n");
1858  printf("trailing white space is removed and blank lines are ignored.\n");  printf("space is removed and blank lines are ignored.\n");
1859  printf("There is a maximum of %d patterns, each of maximum size %d bytes.\n",  printf("There is a maximum of %d patterns, each of maximum size %d bytes.\n",
1860    MAX_PATTERN_COUNT, PATBUFSIZE);    MAX_PATTERN_COUNT, PATBUFSIZE);
1861    
# Line 2694  if (include_dir_pattern != NULL) Line 2697  if (include_dir_pattern != NULL)
2697      goto EXIT2;      goto EXIT2;
2698      }      }
2699    }    }
2700    
2701    /* If a file that contains a list of files to search has been specified, read
2702    it line by line and search the given files. Otherwise, if there are no further
2703    arguments, do the business on stdin and exit. */
2704    
2705  /* If there are no further arguments, do the business on stdin and exit. */  if (file_list != NULL)
2706      {
2707      char buffer[PATBUFSIZE];
2708      FILE *fl;
2709      if (strcmp(file_list, "-") == 0) fl = stdin; else
2710        {
2711        fl = fopen(file_list, "rb");
2712        if (fl == NULL)
2713          {
2714          fprintf(stderr, "pcregrep: Failed to open %s: %s\n", file_list,
2715            strerror(errno));
2716          goto EXIT2;
2717          }
2718        }
2719      while (fgets(buffer, PATBUFSIZE, fl) != NULL)
2720        {
2721        int frc;
2722        char *end = buffer + (int)strlen(buffer);
2723        while (end > buffer && isspace(end[-1])) end--;
2724        *end = 0;
2725        if (*buffer != 0)
2726          {
2727          frc = grep_or_recurse(buffer, dee_action == dee_RECURSE, FALSE);
2728          if (frc > 1) rc = frc;
2729            else if (frc == 0 && rc == 1) rc = 0;
2730          }
2731        }
2732      if (fl != stdin) fclose (fl);
2733      }
2734    
2735    /* Do this only if there was no file list (and no file arguments). */
2736    
2737  if (i >= argc)  else if (i >= argc)
2738    {    {
2739    rc = pcregrep(stdin, FR_PLAIN, stdin_name,    rc = pcregrep(stdin, FR_PLAIN, stdin_name,
2740      (filenames > FN_DEFAULT)? stdin_name : NULL);      (filenames > FN_DEFAULT)? stdin_name : NULL);
2741    goto EXIT;    goto EXIT;
2742    }    }
2743    
2744  /* Otherwise, work through the remaining arguments as files or directories.  /* After handling file-list or if there are remaining arguments, work through
2745  Pass in the fact that there is only one argument at top level - this suppresses  them as files or directories. Pass in the fact that there is only one argument
2746  the file name if the argument is not a directory and filenames are not  at top level - this suppresses the file name if the argument is not a directory
2747  otherwise forced. */  and filenames are not otherwise forced. */
2748    
2749  only_one_at_top = i == argc - 1;   /* Catch initial value of i */  only_one_at_top = i == argc - 1 && file_list == NULL;
2750    
2751  for (; i < argc; i++)  for (; i < argc; i++)
2752    {    {
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