/[pcre]/code/trunk/pcregrep.c
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revision 345 by ph10, Mon Apr 28 15:10:02 2008 UTC revision 1039 by ph10, Thu Sep 13 16:39:03 2012 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) 1997-2008 University of Cambridge             Copyright (c) 1997-2012 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 70  POSSIBILITY OF SUCH DAMAGE. Line 70  POSSIBILITY OF SUCH DAMAGE.
70    
71  typedef int BOOL;  typedef int BOOL;
72    
73  #define MAX_PATTERN_COUNT 100  #define OFFSET_SIZE 99
74    
75  #if BUFSIZ > 8192  #if BUFSIZ > 8192
76  #define MBUFTHIRD BUFSIZ  #define MAXPATLEN BUFSIZ
77  #else  #else
78  #define MBUFTHIRD 8192  #define MAXPATLEN 8192
79  #endif  #endif
80    
81    #define PATBUFSIZE (MAXPATLEN + 10)   /* Allows for prefix+suffix */
82    
83  /* Values for the "filenames" variable, which specifies options for file name  /* Values for the "filenames" variable, which specifies options for file name
84  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
85  all values greater than FN_DEFAULT. */  all values greater than FN_DEFAULT. */
86    
87  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 };
88    
89  /* File reading styles */  /* File reading styles */
90    
# Line 103  enum { DEE_READ, DEE_SKIP }; Line 105  enum { DEE_READ, DEE_SKIP };
105    
106  enum { EL_LF, EL_CR, EL_CRLF, EL_ANY, EL_ANYCRLF };  enum { EL_LF, EL_CR, EL_CRLF, EL_ANY, EL_ANYCRLF };
107    
108    /* Binary file options */
109    
110    enum { BIN_BINARY, BIN_NOMATCH, BIN_TEXT };
111    
112    /* In newer versions of gcc, with FORTIFY_SOURCE set (the default in some
113    environments), a warning is issued if the value of fwrite() is ignored.
114    Unfortunately, casting to (void) does not suppress the warning. To get round
115    this, we use a macro that compiles a fudge. Oddly, this does not also seem to
116    apply to fprintf(). */
117    
118    #define FWRITE(a,b,c,d) if (fwrite(a,b,c,d)) {}
119    
120    
121    
122  /*************************************************  /*************************************************
# Line 126  static char *colour_string = (char *)"1; Line 140  static char *colour_string = (char *)"1;
140  static char *colour_option = NULL;  static char *colour_option = NULL;
141  static char *dee_option = NULL;  static char *dee_option = NULL;
142  static char *DEE_option = NULL;  static char *DEE_option = NULL;
143    static char *locale = NULL;
144    static char *main_buffer = NULL;
145  static char *newline = NULL;  static char *newline = NULL;
146  static char *pattern_filename = NULL;  static char *om_separator = (char *)"";
147  static char *stdin_name = (char *)"(standard input)";  static char *stdin_name = (char *)"(standard input)";
 static char *locale = NULL;  
148    
149  static const unsigned char *pcretables = NULL;  static const unsigned char *pcretables = NULL;
150    
 static int  pattern_count = 0;  
 static pcre **pattern_list = NULL;  
 static pcre_extra **hints_list = NULL;  
   
 static char *include_pattern = NULL;  
 static char *exclude_pattern = NULL;  
 static char *include_dir_pattern = NULL;  
 static char *exclude_dir_pattern = NULL;  
   
 static pcre *include_compiled = NULL;  
 static pcre *exclude_compiled = NULL;  
 static pcre *include_dir_compiled = NULL;  
 static pcre *exclude_dir_compiled = NULL;  
   
151  static int after_context = 0;  static int after_context = 0;
152  static int before_context = 0;  static int before_context = 0;
153    static int binary_files = BIN_BINARY;
154  static int both_context = 0;  static int both_context = 0;
155    static int bufthird = PCREGREP_BUFSIZE;
156    static int bufsize = 3*PCREGREP_BUFSIZE;
157    
158    #if defined HAVE_WINDOWS_H && HAVE_WINDOWS_H
159    static int dee_action = dee_SKIP;
160    #else
161  static int dee_action = dee_READ;  static int dee_action = dee_READ;
162    #endif
163    
164  static int DEE_action = DEE_READ;  static int DEE_action = DEE_READ;
165  static int error_count = 0;  static int error_count = 0;
166  static int filenames = FN_DEFAULT;  static int filenames = FN_DEFAULT;
167    static int pcre_options = 0;
168  static int process_options = 0;  static int process_options = 0;
169    
170    #ifdef SUPPORT_PCREGREP_JIT
171    static int study_options = PCRE_STUDY_JIT_COMPILE;
172    #else
173    static int study_options = 0;
174    #endif
175    
176    static unsigned long int match_limit = 0;
177    static unsigned long int match_limit_recursion = 0;
178    
179  static BOOL count_only = FALSE;  static BOOL count_only = FALSE;
180  static BOOL do_colour = FALSE;  static BOOL do_colour = FALSE;
181  static BOOL file_offsets = FALSE;  static BOOL file_offsets = FALSE;
182  static BOOL hyphenpending = FALSE;  static BOOL hyphenpending = FALSE;
183  static BOOL invert = FALSE;  static BOOL invert = FALSE;
184    static BOOL line_buffered = FALSE;
185  static BOOL line_offsets = FALSE;  static BOOL line_offsets = FALSE;
186  static BOOL multiline = FALSE;  static BOOL multiline = FALSE;
187  static BOOL number = FALSE;  static BOOL number = FALSE;
188  static BOOL only_matching = FALSE;  static BOOL omit_zero_count = FALSE;
189    static BOOL resource_error = FALSE;
190  static BOOL quiet = FALSE;  static BOOL quiet = FALSE;
191    static BOOL show_only_matching = FALSE;
192  static BOOL silent = FALSE;  static BOOL silent = FALSE;
193  static BOOL utf8 = FALSE;  static BOOL utf8 = FALSE;
194    
195    /* Structure for list of --only-matching capturing numbers. */
196    
197    typedef struct omstr {
198      struct omstr *next;
199      int groupnum;
200    } omstr;
201    
202    static omstr *only_matching = NULL;
203    static omstr *only_matching_last = NULL;
204    
205    /* Structure for holding the two variables that describe a number chain. */
206    
207    typedef struct omdatastr {
208      omstr **anchor;
209      omstr **lastptr;
210    } omdatastr;
211    
212    static omdatastr only_matching_data = { &only_matching, &only_matching_last };
213    
214    /* Structure for list of file names (for -f and --{in,ex}clude-from) */
215    
216    typedef struct fnstr {
217      struct fnstr *next;
218      char *name;
219    } fnstr;
220    
221    static fnstr *exclude_from = NULL;
222    static fnstr *exclude_from_last = NULL;
223    static fnstr *include_from = NULL;
224    static fnstr *include_from_last = NULL;
225    
226    static fnstr *file_lists = NULL;
227    static fnstr *file_lists_last = NULL;
228    static fnstr *pattern_files = NULL;
229    static fnstr *pattern_files_last = NULL;
230    
231    /* Structure for holding the two variables that describe a file name chain. */
232    
233    typedef struct fndatastr {
234      fnstr **anchor;
235      fnstr **lastptr;
236    } fndatastr;
237    
238    static fndatastr exclude_from_data = { &exclude_from, &exclude_from_last };
239    static fndatastr include_from_data = { &include_from, &include_from_last };
240    static fndatastr file_lists_data = { &file_lists, &file_lists_last };
241    static fndatastr pattern_files_data = { &pattern_files, &pattern_files_last };
242    
243    /* Structure for pattern and its compiled form; used for matching patterns and
244    also for include/exclude patterns. */
245    
246    typedef struct patstr {
247      struct patstr *next;
248      char *string;
249      pcre *compiled;
250      pcre_extra *hint;
251    } patstr;
252    
253    static patstr *patterns = NULL;
254    static patstr *patterns_last = NULL;
255    static patstr *include_patterns = NULL;
256    static patstr *include_patterns_last = NULL;
257    static patstr *exclude_patterns = NULL;
258    static patstr *exclude_patterns_last = NULL;
259    static patstr *include_dir_patterns = NULL;
260    static patstr *include_dir_patterns_last = NULL;
261    static patstr *exclude_dir_patterns = NULL;
262    static patstr *exclude_dir_patterns_last = NULL;
263    
264    /* Structure holding the two variables that describe a pattern chain. A pointer
265    to such structures is used for each appropriate option. */
266    
267    typedef struct patdatastr {
268      patstr **anchor;
269      patstr **lastptr;
270    } patdatastr;
271    
272    static patdatastr match_patdata = { &patterns, &patterns_last };
273    static patdatastr include_patdata = { &include_patterns, &include_patterns_last };
274    static patdatastr exclude_patdata = { &exclude_patterns, &exclude_patterns_last };
275    static patdatastr include_dir_patdata = { &include_dir_patterns, &include_dir_patterns_last };
276    static patdatastr exclude_dir_patdata = { &exclude_dir_patterns, &exclude_dir_patterns_last };
277    
278    static patstr **incexlist[4] = { &include_patterns, &exclude_patterns,
279                                     &include_dir_patterns, &exclude_dir_patterns };
280    
281    static const char *incexname[4] = { "--include", "--exclude",
282                                        "--include-dir", "--exclude-dir" };
283    
284  /* Structure for options and list of them */  /* Structure for options and list of them */
285    
286  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,
287         OP_PATLIST };         OP_OP_NUMBER, OP_OP_NUMBERS, OP_PATLIST, OP_FILELIST, OP_BINFILES };
288    
289  typedef struct option_item {  typedef struct option_item {
290    int type;    int type;
# Line 196  used to identify them. */ Line 308  used to identify them. */
308  #define N_NULL         (-9)  #define N_NULL         (-9)
309  #define N_LOFFSETS     (-10)  #define N_LOFFSETS     (-10)
310  #define N_FOFFSETS     (-11)  #define N_FOFFSETS     (-11)
311    #define N_LBUFFER      (-12)
312    #define N_M_LIMIT      (-13)
313    #define N_M_LIMIT_REC  (-14)
314    #define N_BUFSIZE      (-15)
315    #define N_NOJIT        (-16)
316    #define N_FILE_LIST    (-17)
317    #define N_BINARY_FILES (-18)
318    #define N_EXCLUDE_FROM (-19)
319    #define N_INCLUDE_FROM (-20)
320    #define N_OM_SEPARATOR (-21)
321    
322  static option_item optionlist[] = {  static option_item optionlist[] = {
323    { OP_NODATA,    N_NULL,   NULL,              "",              "  terminate options" },    { OP_NODATA,     N_NULL,   NULL,              "",              "terminate options" },
324    { OP_NODATA,    N_HELP,   NULL,              "help",          "display this help and exit" },    { OP_NODATA,     N_HELP,   NULL,              "help",          "display this help and exit" },
325    { 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" },
326    { OP_NUMBER,    'B',      &before_context,   "before-context=number", "set number of prior context lines" },    { OP_NODATA,     'a',      NULL,              "text",          "treat binary files as text" },
327    { OP_OP_STRING, N_COLOUR, &colour_option,    "color=option",  "matched text color option" },    { OP_NUMBER,     'B',      &before_context,   "before-context=number", "set number of prior context lines" },
328    { OP_NUMBER,    'C',      &both_context,     "context=number", "set number of context lines, before & after" },    { OP_BINFILES,   N_BINARY_FILES, NULL,        "binary-files=word", "set treatment of binary files" },
329    { OP_NODATA,    'c',      NULL,              "count",         "print only a count of matching lines per FILE" },    { OP_NUMBER,     N_BUFSIZE,&bufthird,         "buffer-size=number", "set processing buffer size parameter" },
330    { OP_OP_STRING, N_COLOUR, &colour_option,    "colour=option", "matched text colour option" },    { OP_OP_STRING,  N_COLOUR, &colour_option,    "color=option",  "matched text color option" },
331    { OP_STRING,    'D',      &DEE_option,       "devices=action","how to handle devices, FIFOs, and sockets" },    { OP_OP_STRING,  N_COLOUR, &colour_option,    "colour=option", "matched text colour option" },
332    { OP_STRING,    'd',      &dee_option,       "directories=action", "how to handle directories" },    { OP_NUMBER,     'C',      &both_context,     "context=number", "set number of context lines, before & after" },
333    { OP_PATLIST,   'e',      NULL,              "regex(p)",      "specify pattern (may be used more than once)" },    { OP_NODATA,     'c',      NULL,              "count",         "print only a count of matching lines per FILE" },
334    { OP_NODATA,    'F',      NULL,              "fixed_strings", "patterns are sets of newline-separated strings" },    { OP_STRING,     'D',      &DEE_option,       "devices=action","how to handle devices, FIFOs, and sockets" },
335    { OP_STRING,    'f',      &pattern_filename, "file=path",     "read patterns from file" },    { OP_STRING,     'd',      &dee_option,       "directories=action", "how to handle directories" },
336    { OP_NODATA,    N_FOFFSETS, NULL,            "file-offsets",  "output file offsets, not text" },    { OP_PATLIST,    'e',      &match_patdata,    "regex(p)=pattern", "specify pattern (may be used more than once)" },
337    { OP_NODATA,    'H',      NULL,              "with-filename", "force the prefixing filename on output" },    { OP_NODATA,     'F',      NULL,              "fixed-strings", "patterns are sets of newline-separated strings" },
338    { OP_NODATA,    'h',      NULL,              "no-filename",   "suppress the prefixing filename on output" },    { OP_FILELIST,   'f',      &pattern_files_data, "file=path",   "read patterns from file" },
339    { OP_NODATA,    'i',      NULL,              "ignore-case",   "ignore case distinctions" },    { OP_FILELIST,   N_FILE_LIST, &file_lists_data, "file-list=path","read files to search from file" },
340    { OP_NODATA,    'l',      NULL,              "files-with-matches", "print only FILE names containing matches" },    { OP_NODATA,     N_FOFFSETS, NULL,            "file-offsets",  "output file offsets, not text" },
341    { OP_NODATA,    'L',      NULL,              "files-without-match","print only FILE names not containing matches" },    { OP_NODATA,     'H',      NULL,              "with-filename", "force the prefixing filename on output" },
342    { OP_STRING,    N_LABEL,  &stdin_name,       "label=name",    "set name for standard input" },    { OP_NODATA,     'h',      NULL,              "no-filename",   "suppress the prefixing filename on output" },
343    { OP_NODATA,    N_LOFFSETS, NULL,            "line-offsets",  "output line numbers and offsets, not text" },    { OP_NODATA,     'I',      NULL,              "",              "treat binary files as not matching (ignore)" },
344    { OP_STRING,    N_LOCALE, &locale,           "locale=locale", "use the named locale" },    { OP_NODATA,     'i',      NULL,              "ignore-case",   "ignore case distinctions" },
345    { OP_NODATA,    'M',      NULL,              "multiline",     "run in multiline mode" },  #ifdef SUPPORT_PCREGREP_JIT
346    { OP_STRING,    'N',      &newline,          "newline=type",  "set newline type (CR, LF, CRLF, ANYCRLF or ANY)" },    { OP_NODATA,     N_NOJIT,  NULL,              "no-jit",        "do not use just-in-time compiler optimization" },
347    { OP_NODATA,    'n',      NULL,              "line-number",   "print line number with output lines" },  #else
348    { OP_NODATA,    'o',      NULL,              "only-matching", "show only the part of the line that matched" },    { OP_NODATA,     N_NOJIT,  NULL,              "no-jit",        "ignored: this pcregrep does not support JIT" },
349    { OP_NODATA,    'q',      NULL,              "quiet",         "suppress output, just set return code" },  #endif
350    { OP_NODATA,    'r',      NULL,              "recursive",     "recursively scan sub-directories" },    { OP_NODATA,     'l',      NULL,              "files-with-matches", "print only FILE names containing matches" },
351    { OP_STRING,    N_EXCLUDE,&exclude_pattern,  "exclude=pattern","exclude matching files when recursing" },    { OP_NODATA,     'L',      NULL,              "files-without-match","print only FILE names not containing matches" },
352    { OP_STRING,    N_INCLUDE,&include_pattern,  "include=pattern","include matching files when recursing" },    { OP_STRING,     N_LABEL,  &stdin_name,       "label=name",    "set name for standard input" },
353    { OP_STRING,    N_EXCLUDE_DIR,&exclude_dir_pattern, "exclude_dir=pattern","exclude matching directories when recursing" },    { OP_NODATA,     N_LBUFFER, NULL,             "line-buffered", "use line buffering" },
354    { OP_STRING,    N_INCLUDE_DIR,&include_dir_pattern, "include_dir=pattern","include matching directories when recursing" },    { OP_NODATA,     N_LOFFSETS, NULL,            "line-offsets",  "output line numbers and offsets, not text" },
355      { OP_STRING,     N_LOCALE, &locale,           "locale=locale", "use the named locale" },
356      { OP_LONGNUMBER, N_M_LIMIT, &match_limit,     "match-limit=number", "set PCRE match limit option" },
357      { OP_LONGNUMBER, N_M_LIMIT_REC, &match_limit_recursion, "recursion-limit=number", "set PCRE match recursion limit option" },
358      { OP_NODATA,     'M',      NULL,              "multiline",     "run in multiline mode" },
359      { OP_STRING,     'N',      &newline,          "newline=type",  "set newline type (CR, LF, CRLF, ANYCRLF or ANY)" },
360      { OP_NODATA,     'n',      NULL,              "line-number",   "print line number with output lines" },
361      { OP_OP_NUMBERS, 'o',      &only_matching_data, "only-matching=n", "show only the part of the line that matched" },
362      { OP_STRING,     N_OM_SEPARATOR, &om_separator, "om-separator=text", "set separator for multiple -o output" },
363      { OP_NODATA,     'q',      NULL,              "quiet",         "suppress output, just set return code" },
364      { OP_NODATA,     'r',      NULL,              "recursive",     "recursively scan sub-directories" },
365      { OP_PATLIST,    N_EXCLUDE,&exclude_patdata,  "exclude=pattern","exclude matching files when recursing" },
366      { OP_PATLIST,    N_INCLUDE,&include_patdata,  "include=pattern","include matching files when recursing" },
367      { OP_PATLIST,    N_EXCLUDE_DIR,&exclude_dir_patdata, "exclude-dir=pattern","exclude matching directories when recursing" },
368      { OP_PATLIST,    N_INCLUDE_DIR,&include_dir_patdata, "include-dir=pattern","include matching directories when recursing" },
369      { OP_FILELIST,   N_EXCLUDE_FROM,&exclude_from_data, "exclude-from=path", "read exclude list from file" },
370      { OP_FILELIST,   N_INCLUDE_FROM,&include_from_data, "include-from=path", "read include list from file" },
371    
372      /* These two were accidentally implemented with underscores instead of
373      hyphens in the option names. As this was not discovered for several releases,
374      the incorrect versions are left in the table for compatibility. However, the
375      --help function misses out any option that has an underscore in its name. */
376    
377      { OP_PATLIST,   N_EXCLUDE_DIR,&exclude_dir_patdata, "exclude_dir=pattern","exclude matching directories when recursing" },
378      { OP_PATLIST,   N_INCLUDE_DIR,&include_dir_patdata, "include_dir=pattern","include matching directories when recursing" },
379    
380  #ifdef JFRIEDL_DEBUG  #ifdef JFRIEDL_DEBUG
381    { 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" },
382  #endif  #endif
# Line 245  static option_item optionlist[] = { Line 392  static option_item optionlist[] = {
392  /* Tables for prefixing and suffixing patterns, according to the -w, -x, and -F  /* Tables for prefixing and suffixing patterns, according to the -w, -x, and -F
393  options. These set the 1, 2, and 4 bits in process_options, respectively. Note  options. These set the 1, 2, and 4 bits in process_options, respectively. Note
394  that the combination of -w and -x has the same effect as -x on its own, so we  that the combination of -w and -x has the same effect as -x on its own, so we
395  can treat them as the same. */  can treat them as the same. Note that the MAXPATLEN macro assumes the longest
396    prefix+suffix is 10 characters; if anything longer is added, it must be
397    adjusted. */
398    
399  static const char *prefix[] = {  static const char *prefix[] = {
400    "", "\\b", "^(?:", "^(?:", "\\Q", "\\b\\Q", "^(?:\\Q", "^(?:\\Q" };    "", "\\b", "^(?:", "^(?:", "\\Q", "\\b\\Q", "^(?:\\Q", "^(?:\\Q" };
# Line 266  const char utf8_table4[] = { Line 415  const char utf8_table4[] = {
415    
416    
417  /*************************************************  /*************************************************
418    *         Exit from the program                  *
419    *************************************************/
420    
421    /* If there has been a resource error, give a suitable message.
422    
423    Argument:  the return code
424    Returns:   does not return
425    */
426    
427    static void
428    pcregrep_exit(int rc)
429    {
430    if (resource_error)
431      {
432      fprintf(stderr, "pcregrep: Error %d, %d or %d means that a resource limit "
433        "was exceeded.\n", PCRE_ERROR_MATCHLIMIT, PCRE_ERROR_RECURSIONLIMIT,
434        PCRE_ERROR_JIT_STACKLIMIT);
435      fprintf(stderr, "pcregrep: Check your regex for nested unlimited loops.\n");
436      }
437    exit(rc);
438    }
439    
440    
441    /*************************************************
442    *          Add item to chain of patterns         *
443    *************************************************/
444    
445    /* Used to add an item onto a chain, or just return an unconnected item if the
446    "after" argument is NULL.
447    
448    Arguments:
449      s          pattern string to add
450      after      if not NULL points to item to insert after
451    
452    Returns:     new pattern block
453    */
454    
455    static patstr *
456    add_pattern(char *s, patstr *after)
457    {
458    patstr *p = (patstr *)malloc(sizeof(patstr));
459    if (p == NULL)
460      {
461      fprintf(stderr, "pcregrep: malloc failed\n");
462      pcregrep_exit(2);
463      }
464    if (strlen(s) > MAXPATLEN)
465      {
466      fprintf(stderr, "pcregrep: pattern is too long (limit is %d bytes)\n",
467        MAXPATLEN);
468      return NULL;
469      }
470    p->next = NULL;
471    p->string = s;
472    p->compiled = NULL;
473    p->hint = NULL;
474    
475    if (after != NULL)
476      {
477      p->next = after->next;
478      after->next = p;
479      }
480    return p;
481    }
482    
483    
484    /*************************************************
485    *           Free chain of patterns               *
486    *************************************************/
487    
488    /* Used for several chains of patterns.
489    
490    Argument: pointer to start of chain
491    Returns:  nothing
492    */
493    
494    static void
495    free_pattern_chain(patstr *pc)
496    {
497    while (pc != NULL)
498      {
499      patstr *p = pc;
500      pc = p->next;
501      if (p->hint != NULL) pcre_free_study(p->hint);
502      if (p->compiled != NULL) pcre_free(p->compiled);
503      free(p);
504      }
505    }
506    
507    
508    /*************************************************
509    *           Free chain of file names             *
510    *************************************************/
511    
512    /*
513    Argument: pointer to start of chain
514    Returns:  nothing
515    */
516    
517    static void
518    free_file_chain(fnstr *fn)
519    {
520    while (fn != NULL)
521      {
522      fnstr *f = fn;
523      fn = f->next;
524      free(f);
525      }
526    }
527    
528    
529    /*************************************************
530  *            OS-specific functions               *  *            OS-specific functions               *
531  *************************************************/  *************************************************/
532    
# Line 281  although at present the only ones are fo Line 542  although at present the only ones are fo
542  #include <dirent.h>  #include <dirent.h>
543    
544  typedef DIR directory_type;  typedef DIR directory_type;
545    #define FILESEP '/'
546    
547  static int  static int
548  isdirectory(char *filename)  isdirectory(char *filename)
# Line 288  isdirectory(char *filename) Line 550  isdirectory(char *filename)
550  struct stat statbuf;  struct stat statbuf;
551  if (stat(filename, &statbuf) < 0)  if (stat(filename, &statbuf) < 0)
552    return 0;        /* In the expectation that opening as a file will fail */    return 0;        /* In the expectation that opening as a file will fail */
553  return ((statbuf.st_mode & S_IFMT) == S_IFDIR)? '/' : 0;  return (statbuf.st_mode & S_IFMT) == S_IFDIR;
554  }  }
555    
556  static directory_type *  static directory_type *
# Line 329  return (statbuf.st_mode & S_IFMT) == S_I Line 591  return (statbuf.st_mode & S_IFMT) == S_I
591  }  }
592    
593    
594  /************* Test stdout for being a terminal in Unix **********/  /************* Test for a terminal in Unix **********/
595    
596  static BOOL  static BOOL
597  is_stdout_tty(void)  is_stdout_tty(void)
# Line 337  is_stdout_tty(void) Line 599  is_stdout_tty(void)
599  return isatty(fileno(stdout));  return isatty(fileno(stdout));
600  }  }
601    
602    static BOOL
603    is_file_tty(FILE *f)
604    {
605    return isatty(fileno(f));
606    }
607    
608    
609  /************* Directory scanning in Win32 ***********/  /************* Directory scanning in Win32 ***********/
610    
# Line 344  return isatty(fileno(stdout)); Line 612  return isatty(fileno(stdout));
612  Lionel Fourquaux. David Burgess added a patch to define INVALID_FILE_ATTRIBUTES  Lionel Fourquaux. David Burgess added a patch to define INVALID_FILE_ATTRIBUTES
613  when it did not exist. David Byron added a patch that moved the #include of  when it did not exist. David Byron added a patch that moved the #include of
614  <windows.h> to before the INVALID_FILE_ATTRIBUTES definition rather than after.  <windows.h> to before the INVALID_FILE_ATTRIBUTES definition rather than after.
615  */  The double test below stops gcc 4.4.4 grumbling that HAVE_WINDOWS_H is
616    undefined when it is indeed undefined. */
617    
618  #elif HAVE_WINDOWS_H  #elif defined HAVE_WINDOWS_H && HAVE_WINDOWS_H
619    
620  #ifndef STRICT  #ifndef STRICT
621  # define STRICT  # define STRICT
# Line 368  BOOL first; Line 637  BOOL first;
637  WIN32_FIND_DATA data;  WIN32_FIND_DATA data;
638  } directory_type;  } directory_type;
639    
640    #define FILESEP '/'
641    
642  int  int
643  isdirectory(char *filename)  isdirectory(char *filename)
644  {  {
645  DWORD attr = GetFileAttributes(filename);  DWORD attr = GetFileAttributes(filename);
646  if (attr == INVALID_FILE_ATTRIBUTES)  if (attr == INVALID_FILE_ATTRIBUTES)
647    return 0;    return 0;
648  return ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) ? '/' : 0;  return (attr & FILE_ATTRIBUTE_DIRECTORY) != 0;
649  }  }
650    
651  directory_type *  directory_type *
# Line 385  char *pattern; Line 656  char *pattern;
656  directory_type *dir;  directory_type *dir;
657  DWORD err;  DWORD err;
658  len = strlen(filename);  len = strlen(filename);
659  pattern = (char *) malloc(len + 3);  pattern = (char *)malloc(len + 3);
660  dir = (directory_type *) malloc(sizeof(*dir));  dir = (directory_type *)malloc(sizeof(*dir));
661  if ((pattern == NULL) || (dir == NULL))  if ((pattern == NULL) || (dir == NULL))
662    {    {
663    fprintf(stderr, "pcregrep: malloc failed\n");    fprintf(stderr, "pcregrep: malloc failed\n");
664    exit(2);    pcregrep_exit(2);
665    }    }
666  memcpy(pattern, filename, len);  memcpy(pattern, filename, len);
667  memcpy(&(pattern[len]), "\\*", 3);  memcpy(&(pattern[len]), "\\*", 3);
# Line 449  return !isdirectory(filename); Line 720  return !isdirectory(filename);
720  }  }
721    
722    
723  /************* Test stdout for being a terminal in Win32 **********/  /************* Test for a terminal in Win32 **********/
724    
725  /* I don't know how to do this; assume never */  /* I don't know how to do this; assume never */
726    
# Line 459  is_stdout_tty(void) Line 730  is_stdout_tty(void)
730  return FALSE;  return FALSE;
731  }  }
732    
733    static BOOL
734    is_file_tty(FILE *f)
735    {
736    return FALSE;
737    }
738    
739    
740  /************* Directory scanning when we can't do it ***********/  /************* Directory scanning when we can't do it ***********/
741    
# Line 466  return FALSE; Line 743  return FALSE;
743    
744  #else  #else
745    
746    #define FILESEP 0
747  typedef void directory_type;  typedef void directory_type;
748    
749  int isdirectory(char *filename) { return 0; }  int isdirectory(char *filename) { return 0; }
# Line 481  void closedirectory(directory_type *dir) Line 759  void closedirectory(directory_type *dir)
759  int isregfile(char *filename) { return 1; }  int isregfile(char *filename) { return 1; }
760    
761    
762  /************* Test stdout for being a terminal when we can't do it **********/  /************* Test for a terminal when we can't do it **********/
763    
764  static BOOL  static BOOL
765  is_stdout_tty(void)  is_stdout_tty(void)
# Line 489  is_stdout_tty(void) Line 767  is_stdout_tty(void)
767  return FALSE;  return FALSE;
768  }  }
769    
770    static BOOL
771    is_file_tty(FILE *f)
772    {
773    return FALSE;
774    }
775    
776  #endif  #endif
777    
# Line 517  return sys_errlist[n]; Line 800  return sys_errlist[n];
800    
801    
802  /*************************************************  /*************************************************
803    *                Usage function                  *
804    *************************************************/
805    
806    static int
807    usage(int rc)
808    {
809    option_item *op;
810    fprintf(stderr, "Usage: pcregrep [-");
811    for (op = optionlist; op->one_char != 0; op++)
812      {
813      if (op->one_char > 0) fprintf(stderr, "%c", op->one_char);
814      }
815    fprintf(stderr, "] [long options] [pattern] [files]\n");
816    fprintf(stderr, "Type `pcregrep --help' for more information and the long "
817      "options.\n");
818    return rc;
819    }
820    
821    
822    
823    /*************************************************
824    *                Help function                   *
825    *************************************************/
826    
827    static void
828    help(void)
829    {
830    option_item *op;
831    
832    printf("Usage: pcregrep [OPTION]... [PATTERN] [FILE1 FILE2 ...]\n");
833    printf("Search for PATTERN in each FILE or standard input.\n");
834    printf("PATTERN must be present if neither -e nor -f is used.\n");
835    printf("\"-\" can be used as a file name to mean STDIN.\n");
836    
837    #ifdef SUPPORT_LIBZ
838    printf("Files whose names end in .gz are read using zlib.\n");
839    #endif
840    
841    #ifdef SUPPORT_LIBBZ2
842    printf("Files whose names end in .bz2 are read using bzlib2.\n");
843    #endif
844    
845    #if defined SUPPORT_LIBZ || defined SUPPORT_LIBBZ2
846    printf("Other files and the standard input are read as plain files.\n\n");
847    #else
848    printf("All files are read as plain files, without any interpretation.\n\n");
849    #endif
850    
851    printf("Example: pcregrep -i 'hello.*world' menu.h main.c\n\n");
852    printf("Options:\n");
853    
854    for (op = optionlist; op->one_char != 0; op++)
855      {
856      int n;
857      char s[4];
858    
859      /* Two options were accidentally implemented and documented with underscores
860      instead of hyphens in their names, something that was not noticed for quite a
861      few releases. When fixing this, I left the underscored versions in the list
862      in case people were using them. However, we don't want to display them in the
863      help data. There are no other options that contain underscores, and we do not
864      expect ever to implement such options. Therefore, just omit any option that
865      contains an underscore. */
866    
867      if (strchr(op->long_name, '_') != NULL) continue;
868    
869      if (op->one_char > 0 && (op->long_name)[0] == 0)
870        n = 31 - printf("  -%c", op->one_char);
871      else
872        {
873        if (op->one_char > 0) sprintf(s, "-%c,", op->one_char);
874          else strcpy(s, "   ");
875        n = 31 - printf("  %s --%s", s, op->long_name);
876        }
877    
878      if (n < 1) n = 1;
879      printf("%.*s%s\n", n, "                           ", op->help_text);
880      }
881    
882    printf("\nNumbers may be followed by K or M, e.g. --buffer-size=100K.\n");
883    printf("The default value for --buffer-size is %d.\n", PCREGREP_BUFSIZE);
884    printf("When reading patterns or file names from a file, trailing white\n");
885    printf("space is removed and blank lines are ignored.\n");
886    printf("The maximum size of any pattern is %d bytes.\n", MAXPATLEN);
887    
888    printf("\nWith no FILEs, read standard input. If fewer than two FILEs given, assume -h.\n");
889    printf("Exit status is 0 if any matches, 1 if no matches, and 2 if trouble.\n");
890    }
891    
892    
893    
894    /*************************************************
895    *            Test exclude/includes               *
896    *************************************************/
897    
898    /* If any exclude pattern matches, the path is excluded. Otherwise, unless
899    there are no includes, the path must match an include pattern.
900    
901    Arguments:
902      path      the path to be matched
903      ip        the chain of include patterns
904      ep        the chain of exclude patterns
905    
906    Returns:    TRUE if the path is not excluded
907    */
908    
909    static BOOL
910    test_incexc(char *path, patstr *ip, patstr *ep)
911    {
912    int plen = strlen(path);
913    
914    for (; ep != NULL; ep = ep->next)
915      {
916      if (pcre_exec(ep->compiled, NULL, path, plen, 0, 0, NULL, 0) >= 0)
917        return FALSE;
918      }
919    
920    if (ip == NULL) return TRUE;
921    
922    for (; ip != NULL; ip = ip->next)
923      {
924      if (pcre_exec(ip->compiled, NULL, path, plen, 0, 0, NULL, 0) >= 0)
925        return TRUE;
926      }
927    
928    return FALSE;
929    }
930    
931    
932    
933    /*************************************************
934    *         Decode integer argument value          *
935    *************************************************/
936    
937    /* Integer arguments can be followed by K or M. Avoid the use of strtoul()
938    because SunOS4 doesn't have it. This is used only for unpicking arguments, so
939    just keep it simple.
940    
941    Arguments:
942      option_data   the option data string
943      op            the option item (for error messages)
944      longop        TRUE if option given in long form
945    
946    Returns:        a long integer
947    */
948    
949    static long int
950    decode_number(char *option_data, option_item *op, BOOL longop)
951    {
952    unsigned long int n = 0;
953    char *endptr = option_data;
954    while (*endptr != 0 && isspace((unsigned char)(*endptr))) endptr++;
955    while (isdigit((unsigned char)(*endptr)))
956      n = n * 10 + (int)(*endptr++ - '0');
957    if (toupper(*endptr) == 'K')
958      {
959      n *= 1024;
960      endptr++;
961      }
962    else if (toupper(*endptr) == 'M')
963      {
964      n *= 1024*1024;
965      endptr++;
966      }
967    
968    if (*endptr != 0)   /* Error */
969      {
970      if (longop)
971        {
972        char *equals = strchr(op->long_name, '=');
973        int nlen = (equals == NULL)? (int)strlen(op->long_name) :
974          (int)(equals - op->long_name);
975        fprintf(stderr, "pcregrep: Malformed number \"%s\" after --%.*s\n",
976          option_data, nlen, op->long_name);
977        }
978      else
979        fprintf(stderr, "pcregrep: Malformed number \"%s\" after -%c\n",
980          option_data, op->one_char);
981      pcregrep_exit(usage(2));
982      }
983    
984    return n;
985    }
986    
987    
988    
989    /*************************************************
990    *       Add item to a chain of numbers           *
991    *************************************************/
992    
993    /* Used to add an item onto a chain, or just return an unconnected item if the
994    "after" argument is NULL.
995    
996    Arguments:
997      n          the number to add
998      after      if not NULL points to item to insert after
999    
1000    Returns:     new number block
1001    */
1002    
1003    static omstr *
1004    add_number(int n, omstr *after)
1005    {
1006    omstr *om = (omstr *)malloc(sizeof(omstr));
1007    
1008    if (om == NULL)
1009      {
1010      fprintf(stderr, "pcregrep: malloc failed\n");
1011      pcregrep_exit(2);
1012      }
1013    om->next = NULL;
1014    om->groupnum = n;
1015    
1016    if (after != NULL)
1017      {
1018      om->next = after->next;
1019      after->next = om;
1020      }
1021    return om;
1022    }
1023    
1024    
1025    
1026    /*************************************************
1027    *            Read one line of input              *
1028    *************************************************/
1029    
1030    /* Normally, input is read using fread() into a large buffer, so many lines may
1031    be read at once. However, doing this for tty input means that no output appears
1032    until a lot of input has been typed. Instead, tty input is handled line by
1033    line. We cannot use fgets() for this, because it does not stop at a binary
1034    zero, and therefore there is no way of telling how many characters it has read,
1035    because there may be binary zeros embedded in the data.
1036    
1037    Arguments:
1038      buffer     the buffer to read into
1039      length     the maximum number of characters to read
1040      f          the file
1041    
1042    Returns:     the number of characters read, zero at end of file
1043    */
1044    
1045    static unsigned int
1046    read_one_line(char *buffer, int length, FILE *f)
1047    {
1048    int c;
1049    int yield = 0;
1050    while ((c = fgetc(f)) != EOF)
1051      {
1052      buffer[yield++] = c;
1053      if (c == '\n' || yield >= length) break;
1054      }
1055    return yield;
1056    }
1057    
1058    
1059    
1060    /*************************************************
1061  *             Find end of line                   *  *             Find end of line                   *
1062  *************************************************/  *************************************************/
1063    
# Line 528  Arguments: Line 1069  Arguments:
1069    endptr    end of available data    endptr    end of available data
1070    lenptr    where to put the length of the eol sequence    lenptr    where to put the length of the eol sequence
1071    
1072  Returns:    pointer to the last byte of the line  Returns:    pointer after the last byte of the line,
1073                including the newline byte(s)
1074  */  */
1075    
1076  static char *  static char *
# Line 597  switch(endlinetype) Line 1139  switch(endlinetype)
1139    
1140      switch (c)      switch (c)
1141        {        {
1142        case 0x0a:    /* LF */        case '\n':
1143        *lenptr = 1;        *lenptr = 1;
1144        return p;        return p;
1145    
1146        case 0x0d:    /* CR */        case '\r':
1147        if (p < endptr && *p == 0x0a)        if (p < endptr && *p == '\n')
1148          {          {
1149          *lenptr = 2;          *lenptr = 2;
1150          p++;          p++;
# Line 641  switch(endlinetype) Line 1183  switch(endlinetype)
1183    
1184      switch (c)      switch (c)
1185        {        {
1186        case 0x0a:    /* LF */        case '\n':    /* LF */
1187        case 0x0b:    /* VT */        case '\v':    /* VT */
1188        case 0x0c:    /* FF */        case '\f':    /* FF */
1189        *lenptr = 1;        *lenptr = 1;
1190        return p;        return p;
1191    
1192        case 0x0d:    /* CR */        case '\r':    /* CR */
1193        if (p < endptr && *p == 0x0a)        if (p < endptr && *p == '\n')
1194          {          {
1195          *lenptr = 2;          *lenptr = 2;
1196          p++;          p++;
# Line 656  switch(endlinetype) Line 1198  switch(endlinetype)
1198        else *lenptr = 1;        else *lenptr = 1;
1199        return p;        return p;
1200    
1201        case 0x85:    /* NEL */  #ifndef EBCDIC
1202          case 0x85:    /* Unicode NEL */
1203        *lenptr = utf8? 2 : 1;        *lenptr = utf8? 2 : 1;
1204        return p;        return p;
1205    
1206        case 0x2028:  /* LS */        case 0x2028:  /* Unicode LS */
1207        case 0x2029:  /* PS */        case 0x2029:  /* Unicode PS */
1208        *lenptr = 3;        *lenptr = 3;
1209        return p;        return p;
1210    #endif  /* Not EBCDIC */
1211    
1212        default:        default:
1213        break;        break;
# Line 747  switch(endlinetype) Line 1291  switch(endlinetype)
1291    
1292      if (endlinetype == EL_ANYCRLF) switch (c)      if (endlinetype == EL_ANYCRLF) switch (c)
1293        {        {
1294        case 0x0a:    /* LF */        case '\n':    /* LF */
1295        case 0x0d:    /* CR */        case '\r':    /* CR */
1296        return p;        return p;
1297    
1298        default:        default:
# Line 757  switch(endlinetype) Line 1301  switch(endlinetype)
1301    
1302      else switch (c)      else switch (c)
1303        {        {
1304        case 0x0a:    /* LF */        case '\n':    /* LF */
1305        case 0x0b:    /* VT */        case '\v':    /* VT */
1306        case 0x0c:    /* FF */        case '\f':    /* FF */
1307        case 0x0d:    /* CR */        case '\r':    /* CR */
1308        case 0x85:    /* NEL */  #ifndef EBCDIE
1309        case 0x2028:  /* LS */        case 0x85:    /* Unicode NEL */
1310        case 0x2029:  /* PS */        case 0x2028:  /* Unicode LS */
1311          case 0x2029:  /* Unicode PS */
1312    #endif  /* Not EBCDIC */
1313        return p;        return p;
1314    
1315        default:        default:
# Line 798  Arguments: Line 1344  Arguments:
1344  Returns:            nothing  Returns:            nothing
1345  */  */
1346    
1347  static void do_after_lines(int lastmatchnumber, char *lastmatchrestart,  static void
1348    char *endptr, char *printname)  do_after_lines(int lastmatchnumber, char *lastmatchrestart, char *endptr,
1349      char *printname)
1350  {  {
1351  if (after_context > 0 && lastmatchnumber > 0)  if (after_context > 0 && lastmatchnumber > 0)
1352    {    {
# Line 811  if (after_context > 0 && lastmatchnumber Line 1358  if (after_context > 0 && lastmatchnumber
1358      if (printname != NULL) fprintf(stdout, "%s-", printname);      if (printname != NULL) fprintf(stdout, "%s-", printname);
1359      if (number) fprintf(stdout, "%d-", lastmatchnumber++);      if (number) fprintf(stdout, "%d-", lastmatchnumber++);
1360      pp = end_of_line(pp, endptr, &ellength);      pp = end_of_line(pp, endptr, &ellength);
1361      fwrite(lastmatchrestart, 1, pp - lastmatchrestart, stdout);      FWRITE(lastmatchrestart, 1, pp - lastmatchrestart, stdout);
1362      lastmatchrestart = pp;      lastmatchrestart = pp;
1363      }      }
1364    hyphenpending = TRUE;    hyphenpending = TRUE;
# Line 821  if (after_context > 0 && lastmatchnumber Line 1368  if (after_context > 0 && lastmatchnumber
1368    
1369    
1370  /*************************************************  /*************************************************
1371    *   Apply patterns to subject till one matches   *
1372    *************************************************/
1373    
1374    /* This function is called to run through all patterns, looking for a match. It
1375    is used multiple times for the same subject when colouring is enabled, in order
1376    to find all possible matches.
1377    
1378    Arguments:
1379      matchptr     the start of the subject
1380      length       the length of the subject to match
1381      startoffset  where to start matching
1382      offsets      the offets vector to fill in
1383      mrc          address of where to put the result of pcre_exec()
1384    
1385    Returns:      TRUE if there was a match
1386                  FALSE if there was no match
1387                  invert if there was a non-fatal error
1388    */
1389    
1390    static BOOL
1391    match_patterns(char *matchptr, size_t length, int startoffset, int *offsets,
1392      int *mrc)
1393    {
1394    int i;
1395    size_t slen = length;
1396    patstr *p = patterns;
1397    const char *msg = "this text:\n\n";
1398    
1399    if (slen > 200)
1400      {
1401      slen = 200;
1402      msg = "text that starts:\n\n";
1403      }
1404    for (i = 1; p != NULL; p = p->next, i++)
1405      {
1406      *mrc = pcre_exec(p->compiled, p->hint, matchptr, (int)length,
1407        startoffset, PCRE_NOTEMPTY, offsets, OFFSET_SIZE);
1408      if (*mrc >= 0) return TRUE;
1409      if (*mrc == PCRE_ERROR_NOMATCH) continue;
1410      fprintf(stderr, "pcregrep: pcre_exec() gave error %d while matching ", *mrc);
1411      if (patterns->next != NULL) fprintf(stderr, "pattern number %d to ", i);
1412      fprintf(stderr, "%s", msg);
1413      FWRITE(matchptr, 1, slen, stderr);   /* In case binary zero included */
1414      fprintf(stderr, "\n\n");
1415      if (*mrc == PCRE_ERROR_MATCHLIMIT || *mrc == PCRE_ERROR_RECURSIONLIMIT ||
1416          *mrc == PCRE_ERROR_JIT_STACKLIMIT)
1417        resource_error = TRUE;
1418      if (error_count++ > 20)
1419        {
1420        fprintf(stderr, "pcregrep: Too many errors - abandoned.\n");
1421        pcregrep_exit(2);
1422        }
1423      return invert;    /* No more matching; don't show the line again */
1424      }
1425    
1426    return FALSE;  /* No match, no errors */
1427    }
1428    
1429    
1430    
1431    /*************************************************
1432  *            Grep an individual file             *  *            Grep an individual file             *
1433  *************************************************/  *************************************************/
1434    
1435  /* This is called from grep_or_recurse() below. It uses a buffer that is three  /* This is called from grep_or_recurse() below. It uses a buffer that is three
1436  times the value of MBUFTHIRD. The matching point is never allowed to stray into  times the value of bufthird. The matching point is never allowed to stray into
1437  the top third of the buffer, thus keeping more of the file available for  the top third of the buffer, thus keeping more of the file available for
1438  context printing or for multiline scanning. For large files, the pointer will  context printing or for multiline scanning. For large files, the pointer will
1439  be in the middle third most of the time, so the bottom third is available for  be in the middle third most of the time, so the bottom third is available for
# Line 836  Arguments: Line 1444  Arguments:
1444                 the gzFile pointer when reading is via libz                 the gzFile pointer when reading is via libz
1445                 the BZFILE pointer when reading is via libbz2                 the BZFILE pointer when reading is via libbz2
1446    frtype       FR_PLAIN, FR_LIBZ, or FR_LIBBZ2    frtype       FR_PLAIN, FR_LIBZ, or FR_LIBBZ2
1447      filename     the file name or NULL (for errors)
1448    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
1449                 or NULL if the file name is not to be printed                 or NULL if the file name is not to be printed
1450                 it cannot be NULL if filenames[_nomatch]_only is set                 it cannot be NULL if filenames[_nomatch]_only is set
1451    
1452  Returns:       0 if there was at least one match  Returns:       0 if there was at least one match
1453                 1 otherwise (no matches)                 1 otherwise (no matches)
1454                 2 if there is a read error on a .bz2 file                 2 if an overlong line is encountered
1455                   3 if there is a read error on a .bz2 file
1456  */  */
1457    
1458  static int  static int
1459  pcregrep(void *handle, int frtype, char *printname)  pcregrep(void *handle, int frtype, char *filename, char *printname)
1460  {  {
1461  int rc = 1;  int rc = 1;
1462  int linenumber = 1;  int linenumber = 1;
1463  int lastmatchnumber = 0;  int lastmatchnumber = 0;
1464  int count = 0;  int count = 0;
1465  int filepos = 0;  int filepos = 0;
1466  int offsets[99];  int offsets[OFFSET_SIZE];
1467  char *lastmatchrestart = NULL;  char *lastmatchrestart = NULL;
1468  char buffer[3*MBUFTHIRD];  char *ptr = main_buffer;
 char *ptr = buffer;  
1469  char *endptr;  char *endptr;
1470  size_t bufflength;  size_t bufflength;
1471    BOOL binary = FALSE;
1472  BOOL endhyphenpending = FALSE;  BOOL endhyphenpending = FALSE;
1473    BOOL input_line_buffered = line_buffered;
1474  FILE *in = NULL;                    /* Ensure initialized */  FILE *in = NULL;                    /* Ensure initialized */
1475    
1476  #ifdef SUPPORT_LIBZ  #ifdef SUPPORT_LIBZ
# Line 880  fail. */ Line 1491  fail. */
1491  if (frtype == FR_LIBZ)  if (frtype == FR_LIBZ)
1492    {    {
1493    ingz = (gzFile)handle;    ingz = (gzFile)handle;
1494    bufflength = gzread (ingz, buffer, 3*MBUFTHIRD);    bufflength = gzread (ingz, main_buffer, bufsize);
1495    }    }
1496  else  else
1497  #endif  #endif
# Line 889  else Line 1500  else
1500  if (frtype == FR_LIBBZ2)  if (frtype == FR_LIBBZ2)
1501    {    {
1502    inbz2 = (BZFILE *)handle;    inbz2 = (BZFILE *)handle;
1503    bufflength = BZ2_bzread(inbz2, buffer, 3*MBUFTHIRD);    bufflength = BZ2_bzread(inbz2, main_buffer, bufsize);
1504    if ((int)bufflength < 0) return 2;   /* Gotcha: bufflength is size_t; */    if ((int)bufflength < 0) return 2;   /* Gotcha: bufflength is size_t; */
1505    }                                    /* without the cast it is unsigned. */    }                                    /* without the cast it is unsigned. */
1506  else  else
# Line 897  else Line 1508  else
1508    
1509    {    {
1510    in = (FILE *)handle;    in = (FILE *)handle;
1511    bufflength = fread(buffer, 1, 3*MBUFTHIRD, in);    if (is_file_tty(in)) input_line_buffered = TRUE;
1512      bufflength = input_line_buffered?
1513        read_one_line(main_buffer, bufsize, in) :
1514        fread(main_buffer, 1, bufsize, in);
1515    }    }
1516    
1517  endptr = buffer + bufflength;  endptr = main_buffer + bufflength;
1518    
1519    /* Unless binary-files=text, see if we have a binary file. This uses the same
1520    rule as GNU grep, namely, a search for a binary zero byte near the start of the
1521    file. */
1522    
1523    if (binary_files != BIN_TEXT)
1524      {
1525      binary =
1526        memchr(main_buffer, 0, (bufflength > 1024)? 1024 : bufflength) != NULL;
1527      if (binary && binary_files == BIN_NOMATCH) return 1;
1528      }
1529    
1530  /* 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
1531  files, endptr will be at the end of the buffer when we are in the middle of the  files, endptr will be at the end of the buffer when we are in the middle of the
# Line 909  way, the buffer is shifted left and re-f Line 1534  way, the buffer is shifted left and re-f
1534    
1535  while (ptr < endptr)  while (ptr < endptr)
1536    {    {
1537    int i, endlinelength;    int endlinelength;
1538    int mrc = 0;    int mrc = 0;
1539    BOOL match = FALSE;    int startoffset = 0;
1540      BOOL match;
1541    char *matchptr = ptr;    char *matchptr = ptr;
1542    char *t = ptr;    char *t = ptr;
1543    size_t length, linelength;    size_t length, linelength;
# Line 919  while (ptr < endptr) Line 1545  while (ptr < endptr)
1545    /* 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
1546    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
1547    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
1548    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
1549    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
1550    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
1551      first line. */
1552    
1553    t = end_of_line(t, endptr, &endlinelength);    t = end_of_line(t, endptr, &endlinelength);
1554    linelength = t - ptr - endlinelength;    linelength = t - ptr - endlinelength;
1555    length = multiline? (size_t)(endptr - ptr) : linelength;    length = multiline? (size_t)(endptr - ptr) : linelength;
1556    
1557      /* Check to see if the line we are looking at extends right to the very end
1558      of the buffer without a line terminator. This means the line is too long to
1559      handle. */
1560    
1561      if (endlinelength == 0 && t == main_buffer + bufsize)
1562        {
1563        fprintf(stderr, "pcregrep: line %d%s%s is too long for the internal buffer\n"
1564                        "pcregrep: check the --buffer-size option\n",
1565                        linenumber,
1566                        (filename == NULL)? "" : " of file ",
1567                        (filename == NULL)? "" : filename);
1568        return 2;
1569        }
1570    
1571    /* Extra processing for Jeffrey Friedl's debugging. */    /* Extra processing for Jeffrey Friedl's debugging. */
1572    
1573  #ifdef JFRIEDL_DEBUG  #ifdef JFRIEDL_DEBUG
# Line 936  while (ptr < endptr) Line 1577  while (ptr < endptr)
1577        #include <time.h>        #include <time.h>
1578        struct timeval start_time, end_time;        struct timeval start_time, end_time;
1579        struct timezone dummy;        struct timezone dummy;
1580          int i;
1581    
1582        if (jfriedl_XT)        if (jfriedl_XT)
1583        {        {
# Line 944  while (ptr < endptr) Line 1586  while (ptr < endptr)
1586            ptr = malloc(newlen + 1);            ptr = malloc(newlen + 1);
1587            if (!ptr) {            if (!ptr) {
1588                    printf("out of memory");                    printf("out of memory");
1589                    exit(2);                    pcregrep_exit(2);
1590            }            }
1591            endptr = ptr;            endptr = ptr;
1592            strcpy(endptr, jfriedl_prefix); endptr += strlen(jfriedl_prefix);            strcpy(endptr, jfriedl_prefix); endptr += strlen(jfriedl_prefix);
# Line 961  while (ptr < endptr) Line 1603  while (ptr < endptr)
1603    
1604    
1605        for (i = 0; i < jfriedl_XR; i++)        for (i = 0; i < jfriedl_XR; i++)
1606            match = (pcre_exec(pattern_list[0], hints_list[0], ptr, length, 0, 0, offsets, 99) >= 0);            match = (pcre_exec(patterns->compiled, patterns->hint, ptr, length, 0,
1607                  PCRE_NOTEMPTY, offsets, OFFSET_SIZE) >= 0);
1608    
1609        if (gettimeofday(&end_time, &dummy) != 0)        if (gettimeofday(&end_time, &dummy) != 0)
1610                perror("bad gettimeofday");                perror("bad gettimeofday");
# Line 975  while (ptr < endptr) Line 1618  while (ptr < endptr)
1618    }    }
1619  #endif  #endif
1620    
1621    /* We come back here after a match when the -o option (only_matching) is set,    /* We come back here after a match when show_only_matching is set, in order
1622    in order to find any further matches in the same line. */    to find any further matches in the same line. This applies to
1623      --only-matching, --file-offsets, and --line-offsets. */
1624    
1625    ONLY_MATCHING_RESTART:    ONLY_MATCHING_RESTART:
1626    
1627    /* Run through all the patterns until one matches. Note that we don't include    /* Run through all the patterns until one matches or there is an error other
1628    the final newline in the subject string. */    than NOMATCH. This code is in a subroutine so that it can be re-used for
1629      finding subsequent matches when colouring matched lines. */
1630    
1631    for (i = 0; i < pattern_count; i++)    match = match_patterns(matchptr, length, startoffset, offsets, &mrc);
     {  
     mrc = pcre_exec(pattern_list[i], hints_list[i], matchptr, length, 0, 0,  
       offsets, 99);  
     if (mrc >= 0) { match = TRUE; break; }  
     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(matchptr, 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;  
       }  
     }  
1632    
1633    /* 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. */
1634    
# Line 1026  while (ptr < endptr) Line 1644  while (ptr < endptr)
1644    
1645      if (count_only) count++;      if (count_only) count++;
1646    
1647        /* When handling a binary file and binary-files==binary, the "binary"
1648        variable will be set true (it's false in all other cases). In this
1649        situation we just want to output the file name. No need to scan further. */
1650    
1651        else if (binary)
1652          {
1653          fprintf(stdout, "Binary file %s matches\n", filename);
1654          return 0;
1655          }
1656    
1657      /* 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
1658      in the file. */      in the file. */
1659    
1660      else if (filenames == FN_ONLY)      else if (filenames == FN_MATCH_ONLY)
1661        {        {
1662        fprintf(stdout, "%s\n", printname);        fprintf(stdout, "%s\n", printname);
1663        return 0;        return 0;
# Line 1039  while (ptr < endptr) Line 1667  while (ptr < endptr)
1667    
1668      else if (quiet) return 0;      else if (quiet) return 0;
1669    
1670      /* The --only-matching option prints just the substring that matched, and      /* The --only-matching option prints just the substring that matched,
1671      the --file-offsets and --line-offsets options output offsets for the      and/or one or more captured portions of it, as long as these strings are
1672      matching substring (they both force --only-matching). None of these options      not empty. The --file-offsets and --line-offsets options output offsets for
1673      prints any context. Afterwards, adjust the start and length, and then jump      the matching substring (all three set show_only_matching). None of these
1674      back to look for further matches in the same line. If we are in invert      mutually exclusive options prints any context. Afterwards, adjust the start
1675      mode, however, nothing is printed - this could be still useful because the      and then jump back to look for further matches in the same line. If we are
1676      return code is set. */      in invert mode, however, nothing is printed and we do not restart - this
1677        could still be useful because the return code is set. */
1678    
1679      else if (only_matching)      else if (show_only_matching)
1680        {        {
1681        if (!invert)        if (!invert)
1682          {          {
1683          if (printname != NULL) fprintf(stdout, "%s:", printname);          if (printname != NULL) fprintf(stdout, "%s:", printname);
1684          if (number) fprintf(stdout, "%d:", linenumber);          if (number) fprintf(stdout, "%d:", linenumber);
1685    
1686            /* Handle --line-offsets */
1687    
1688          if (line_offsets)          if (line_offsets)
1689            fprintf(stdout, "%d,%d", matchptr + offsets[0] - ptr,            fprintf(stdout, "%d,%d\n", (int)(matchptr + offsets[0] - ptr),
1690              offsets[1] - offsets[0]);              offsets[1] - offsets[0]);
1691    
1692            /* Handle --file-offsets */
1693    
1694          else if (file_offsets)          else if (file_offsets)
1695            fprintf(stdout, "%d,%d", filepos + matchptr + offsets[0] - ptr,            fprintf(stdout, "%d,%d\n",
1696                (int)(filepos + matchptr + offsets[0] - ptr),
1697              offsets[1] - offsets[0]);              offsets[1] - offsets[0]);
1698    
1699            /* Handle --only-matching, which may occur many times */
1700    
1701          else          else
1702            fwrite(matchptr + offsets[0], 1, offsets[1] - offsets[0], stdout);            {
1703          fprintf(stdout, "\n");            BOOL printed = FALSE;
1704          matchptr += offsets[1];            omstr *om;
1705          length -= offsets[1];  
1706              for (om = only_matching; om != NULL; om = om->next)
1707                {
1708                int n = om->groupnum;
1709                if (n < mrc)
1710                  {
1711                  int plen = offsets[2*n + 1] - offsets[2*n];
1712                  if (plen > 0)
1713                    {
1714                    if (printed) fprintf(stdout, "%s", om_separator);
1715                    if (do_colour) fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1716                    FWRITE(matchptr + offsets[n*2], 1, plen, stdout);
1717                    if (do_colour) fprintf(stdout, "%c[00m", 0x1b);
1718                    printed = TRUE;
1719                    }
1720                  }
1721                }
1722    
1723              if (printed || printname != NULL || number) fprintf(stdout, "\n");
1724              }
1725    
1726            /* Prepare to repeat to find the next match */
1727    
1728          match = FALSE;          match = FALSE;
1729            if (line_buffered) fflush(stdout);
1730            rc = 0;                      /* Had some success */
1731            startoffset = offsets[1];    /* Restart after the match */
1732          goto ONLY_MATCHING_RESTART;          goto ONLY_MATCHING_RESTART;
1733          }          }
1734        }        }
# Line 1100  while (ptr < endptr) Line 1764  while (ptr < endptr)
1764            if (printname != NULL) fprintf(stdout, "%s-", printname);            if (printname != NULL) fprintf(stdout, "%s-", printname);
1765            if (number) fprintf(stdout, "%d-", lastmatchnumber++);            if (number) fprintf(stdout, "%d-", lastmatchnumber++);
1766            pp = end_of_line(pp, endptr, &ellength);            pp = end_of_line(pp, endptr, &ellength);
1767            fwrite(lastmatchrestart, 1, pp - lastmatchrestart, stdout);            FWRITE(lastmatchrestart, 1, pp - lastmatchrestart, stdout);
1768            lastmatchrestart = pp;            lastmatchrestart = pp;
1769            }            }
1770          if (lastmatchrestart != ptr) hyphenpending = TRUE;          if (lastmatchrestart != ptr) hyphenpending = TRUE;
# Line 1123  while (ptr < endptr) Line 1787  while (ptr < endptr)
1787          int linecount = 0;          int linecount = 0;
1788          char *p = ptr;          char *p = ptr;
1789    
1790          while (p > buffer && (lastmatchnumber == 0 || p > lastmatchrestart) &&          while (p > main_buffer && (lastmatchnumber == 0 || p > lastmatchrestart) &&
1791                 linecount < before_context)                 linecount < before_context)
1792            {            {
1793            linecount++;            linecount++;
1794            p = previous_line(p, buffer);            p = previous_line(p, main_buffer);
1795            }            }
1796    
1797          if (lastmatchnumber > 0 && p > lastmatchrestart && !hyphenprinted)          if (lastmatchnumber > 0 && p > lastmatchrestart && !hyphenprinted)
# Line 1140  while (ptr < endptr) Line 1804  while (ptr < endptr)
1804            if (printname != NULL) fprintf(stdout, "%s-", printname);            if (printname != NULL) fprintf(stdout, "%s-", printname);
1805            if (number) fprintf(stdout, "%d-", linenumber - linecount--);            if (number) fprintf(stdout, "%d-", linenumber - linecount--);
1806            pp = end_of_line(pp, endptr, &ellength);            pp = end_of_line(pp, endptr, &ellength);
1807            fwrite(p, 1, pp - p, stdout);            FWRITE(p, 1, pp - p, stdout);
1808            p = pp;            p = pp;
1809            }            }
1810          }          }
# Line 1160  while (ptr < endptr) Line 1824  while (ptr < endptr)
1824        (invert not set). Because the PCRE_FIRSTLINE option is set, the start of        (invert not set). Because the PCRE_FIRSTLINE option is set, the start of
1825        the match will always be before the first newline sequence. */        the match will always be before the first newline sequence. */
1826    
1827        if (multiline)        if (multiline & !invert)
1828          {          {
1829          int ellength;          char *endmatch = ptr + offsets[1];
1830          char *endmatch = ptr;          t = ptr;
1831          if (!invert)          while (t < endmatch)
1832            {            {
1833            endmatch += offsets[1];            t = end_of_line(t, endptr, &endlinelength);
1834            t = ptr;            if (t < endmatch) linenumber++; else break;
           while (t < endmatch)  
             {  
             t = end_of_line(t, endptr, &ellength);  
             if (t <= endmatch) linenumber++; else break;  
             }  
1835            }            }
1836          endmatch = end_of_line(endmatch, endptr, &ellength);          linelength = t - ptr - endlinelength;
         linelength = endmatch - ptr - ellength;  
1837          }          }
1838    
1839        /*** 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 1190  while (ptr < endptr) Line 1848  while (ptr < endptr)
1848          {          {
1849          int first = S_arg * 2;          int first = S_arg * 2;
1850          int last  = first + 1;          int last  = first + 1;
1851          fwrite(ptr, 1, offsets[first], stdout);          FWRITE(ptr, 1, offsets[first], stdout);
1852          fprintf(stdout, "X");          fprintf(stdout, "X");
1853          fwrite(ptr + offsets[last], 1, linelength - offsets[last], stdout);          FWRITE(ptr + offsets[last], 1, linelength - offsets[last], stdout);
1854          }          }
1855        else        else
1856  #endif  #endif
1857    
1858        /* We have to split the line(s) up if colouring. */        /* We have to split the line(s) up if colouring, and search for further
1859          matches, but not of course if the line is a non-match. */
1860    
1861        if (do_colour)        if (do_colour && !invert)
1862          {          {
1863          fwrite(ptr, 1, offsets[0], stdout);          int plength;
1864            FWRITE(ptr, 1, offsets[0], stdout);
1865          fprintf(stdout, "%c[%sm", 0x1b, colour_string);          fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1866          fwrite(ptr + offsets[0], 1, offsets[1] - offsets[0], stdout);          FWRITE(ptr + offsets[0], 1, offsets[1] - offsets[0], stdout);
1867          fprintf(stdout, "%c[00m", 0x1b);          fprintf(stdout, "%c[00m", 0x1b);
1868          fwrite(ptr + offsets[1], 1, (linelength + endlinelength) - offsets[1],          for (;;)
1869            stdout);            {
1870              startoffset = offsets[1];
1871              if (startoffset >= (int)linelength + endlinelength ||
1872                  !match_patterns(matchptr, length, startoffset, offsets, &mrc))
1873                break;
1874              FWRITE(matchptr + startoffset, 1, offsets[0] - startoffset, stdout);
1875              fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1876              FWRITE(matchptr + offsets[0], 1, offsets[1] - offsets[0], stdout);
1877              fprintf(stdout, "%c[00m", 0x1b);
1878              }
1879    
1880            /* In multiline mode, we may have already printed the complete line
1881            and its line-ending characters (if they matched the pattern), so there
1882            may be no more to print. */
1883    
1884            plength = (int)((linelength + endlinelength) - startoffset);
1885            if (plength > 0) FWRITE(ptr + startoffset, 1, plength, stdout);
1886          }          }
1887        else fwrite(ptr, 1, linelength + endlinelength, stdout);  
1888          /* Not colouring; no need to search for further matches */
1889    
1890          else FWRITE(ptr, 1, linelength + endlinelength, stdout);
1891        }        }
1892    
1893      /* 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
1894        given, flush the output. */
1895    
1896        if (line_buffered) fflush(stdout);
1897      rc = 0;    /* Had some success */      rc = 0;    /* Had some success */
1898    
1899      /* Remember where the last match happened for after_context. We remember      /* Remember where the last match happened for after_context. We remember
# Line 1244  while (ptr < endptr) Line 1925  while (ptr < endptr)
1925    offset to the current line is maintained in filepos. */    offset to the current line is maintained in filepos. */
1926    
1927    ptr += linelength + endlinelength;    ptr += linelength + endlinelength;
1928    filepos += linelength + endlinelength;    filepos += (int)(linelength + endlinelength);
1929    linenumber++;    linenumber++;
1930    
1931      /* If input is line buffered, and the buffer is not yet full, read another
1932      line and add it into the buffer. */
1933    
1934      if (input_line_buffered && bufflength < (size_t)bufsize)
1935        {
1936        int add = read_one_line(ptr, bufsize - (int)(ptr - main_buffer), in);
1937        bufflength += add;
1938        endptr += add;
1939        }
1940    
1941    /* 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
1942    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
1943    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
1944    about to be lost, print them. */    about to be lost, print them. */
1945    
1946    if (bufflength >= sizeof(buffer) && ptr > buffer + 2*MBUFTHIRD)    if (bufflength >= (size_t)bufsize && ptr > main_buffer + 2*bufthird)
1947      {      {
1948      if (after_context > 0 &&      if (after_context > 0 &&
1949          lastmatchnumber > 0 &&          lastmatchnumber > 0 &&
1950          lastmatchrestart < buffer + MBUFTHIRD)          lastmatchrestart < main_buffer + bufthird)
1951        {        {
1952        do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);        do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);
1953        lastmatchnumber = 0;        lastmatchnumber = 0;
# Line 1264  while (ptr < endptr) Line 1955  while (ptr < endptr)
1955    
1956      /* Now do the shuffle */      /* Now do the shuffle */
1957    
1958      memmove(buffer, buffer + MBUFTHIRD, 2*MBUFTHIRD);      memmove(main_buffer, main_buffer + bufthird, 2*bufthird);
1959      ptr -= MBUFTHIRD;      ptr -= bufthird;
1960    
1961  #ifdef SUPPORT_LIBZ  #ifdef SUPPORT_LIBZ
1962      if (frtype == FR_LIBZ)      if (frtype == FR_LIBZ)
1963        bufflength = 2*MBUFTHIRD +        bufflength = 2*bufthird +
1964          gzread (ingz, buffer + 2*MBUFTHIRD, MBUFTHIRD);          gzread (ingz, main_buffer + 2*bufthird, bufthird);
1965      else      else
1966  #endif  #endif
1967    
1968  #ifdef SUPPORT_LIBBZ2  #ifdef SUPPORT_LIBBZ2
1969      if (frtype == FR_LIBBZ2)      if (frtype == FR_LIBBZ2)
1970        bufflength = 2*MBUFTHIRD +        bufflength = 2*bufthird +
1971          BZ2_bzread(inbz2, buffer + 2*MBUFTHIRD, MBUFTHIRD);          BZ2_bzread(inbz2, main_buffer + 2*bufthird, bufthird);
1972      else      else
1973  #endif  #endif
1974    
1975      bufflength = 2*MBUFTHIRD + fread(buffer + 2*MBUFTHIRD, 1, MBUFTHIRD, in);      bufflength = 2*bufthird +
1976          (input_line_buffered?
1977      endptr = buffer + bufflength;         read_one_line(main_buffer + 2*bufthird, bufthird, in) :
1978           fread(main_buffer + 2*bufthird, 1, bufthird, in));
1979        endptr = main_buffer + bufflength;
1980    
1981      /* Adjust any last match point */      /* Adjust any last match point */
1982    
1983      if (lastmatchnumber > 0) lastmatchrestart -= MBUFTHIRD;      if (lastmatchnumber > 0) lastmatchrestart -= bufthird;
1984      }      }
1985    }     /* Loop through the whole file */    }     /* Loop through the whole file */
1986    
1987  /* 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
1988  hyphenpending if it prints something. */  hyphenpending if it prints something. */
1989    
1990  if (!only_matching && !count_only)  if (!show_only_matching && !count_only)
1991    {    {
1992    do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);    do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);
1993    hyphenpending |= endhyphenpending;    hyphenpending |= endhyphenpending;
# Line 1313  if (filenames == FN_NOMATCH_ONLY) Line 2006  if (filenames == FN_NOMATCH_ONLY)
2006    
2007  if (count_only)  if (count_only)
2008    {    {
2009    if (printname != NULL) fprintf(stdout, "%s:", printname);    if (count > 0 || !omit_zero_count)
2010    fprintf(stdout, "%d\n", count);      {
2011        if (printname != NULL && filenames != FN_NONE)
2012          fprintf(stdout, "%s:", printname);
2013        fprintf(stdout, "%d\n", count);
2014        }
2015    }    }
2016    
2017  return rc;  return rc;
# Line 1334  Arguments: Line 2031  Arguments:
2031    dir_recurse       TRUE if recursing is wanted (-r or -drecurse)    dir_recurse       TRUE if recursing is wanted (-r or -drecurse)
2032    only_one_at_top   TRUE if the path is the only one at toplevel    only_one_at_top   TRUE if the path is the only one at toplevel
2033    
2034  Returns:   0 if there was at least one match  Returns:  -1 the file/directory was skipped
2035               0 if there was at least one match
2036             1 if there were no matches             1 if there were no matches
2037             2 there was some kind of error             2 there was some kind of error
2038    
# Line 1345  static int Line 2043  static int
2043  grep_or_recurse(char *pathname, BOOL dir_recurse, BOOL only_one_at_top)  grep_or_recurse(char *pathname, BOOL dir_recurse, BOOL only_one_at_top)
2044  {  {
2045  int rc = 1;  int rc = 1;
 int sep;  
2046  int frtype;  int frtype;
 int pathlen;  
2047  void *handle;  void *handle;
2048    char *lastcomp;
2049  FILE *in = NULL;           /* Ensure initialized */  FILE *in = NULL;           /* Ensure initialized */
2050    
2051  #ifdef SUPPORT_LIBZ  #ifdef SUPPORT_LIBZ
# Line 1359  gzFile ingz = NULL; Line 2056  gzFile ingz = NULL;
2056  BZFILE *inbz2 = NULL;  BZFILE *inbz2 = NULL;
2057  #endif  #endif
2058    
2059    #if defined SUPPORT_LIBZ || defined SUPPORT_LIBBZ2
2060    int pathlen;
2061    #endif
2062    
2063  /* If the file name is "-" we scan stdin */  /* If the file name is "-" we scan stdin */
2064    
2065  if (strcmp(pathname, "-") == 0)  if (strcmp(pathname, "-") == 0)
2066    {    {
2067    return pcregrep(stdin, FR_PLAIN,    return pcregrep(stdin, FR_PLAIN, stdin_name,
2068      (filenames > FN_DEFAULT || (filenames == FN_DEFAULT && !only_one_at_top))?      (filenames > FN_DEFAULT || (filenames == FN_DEFAULT && !only_one_at_top))?
2069        stdin_name : NULL);        stdin_name : NULL);
2070    }    }
2071    
2072  /* If the file is a directory, skip if skipping or if we are recursing, scan  /* Inclusion and exclusion: --include-dir and --exclude-dir apply only to
2073  each file and directory within it, subject to any include or exclude patterns  directories, whereas --include and --exclude apply to everything else. The test
2074  that were set. The scanning code is localized so it can be made  is against the final component of the path. */
2075  system-specific. */  
2076    lastcomp = strrchr(pathname, FILESEP);
2077    lastcomp = (lastcomp == NULL)? pathname : lastcomp + 1;
2078    
2079    /* If the file is a directory, skip if not recursing or if explicitly excluded.
2080    Otherwise, scan the directory and recurse for each path within it. The scanning
2081    code is localized so it can be made system-specific. */
2082    
2083    if (isdirectory(pathname))
2084      {
2085      if (dee_action == dee_SKIP ||
2086          !test_incexc(lastcomp, include_dir_patterns, exclude_dir_patterns))
2087        return -1;
2088    
 if ((sep = isdirectory(pathname)) != 0)  
   {  
   if (dee_action == dee_SKIP) return 1;  
2089    if (dee_action == dee_RECURSE)    if (dee_action == dee_RECURSE)
2090      {      {
2091      char buffer[1024];      char buffer[1024];
# Line 1392  if ((sep = isdirectory(pathname)) != 0) Line 2102  if ((sep = isdirectory(pathname)) != 0)
2102    
2103      while ((nextfile = readdirectory(dir)) != NULL)      while ((nextfile = readdirectory(dir)) != NULL)
2104        {        {
2105        int frc, nflen;        int frc;
2106        sprintf(buffer, "%.512s%c%.128s", pathname, sep, nextfile);        sprintf(buffer, "%.512s%c%.128s", pathname, FILESEP, nextfile);
       nflen = strlen(nextfile);  
   
       if (isdirectory(buffer))  
         {  
         if (exclude_dir_compiled != NULL &&  
             pcre_exec(exclude_dir_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) >= 0)  
           continue;  
   
         if (include_dir_compiled != NULL &&  
             pcre_exec(include_dir_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) < 0)  
           continue;  
         }  
       else  
         {  
         if (exclude_compiled != NULL &&  
             pcre_exec(exclude_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) >= 0)  
           continue;  
   
         if (include_compiled != NULL &&  
             pcre_exec(include_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) < 0)  
           continue;  
         }  
   
2107        frc = grep_or_recurse(buffer, dir_recurse, FALSE);        frc = grep_or_recurse(buffer, dir_recurse, FALSE);
2108        if (frc > 1) rc = frc;        if (frc > 1) rc = frc;
2109         else if (frc == 0 && rc == 1) rc = 0;         else if (frc == 0 && rc == 1) rc = 0;
# Line 1428  if ((sep = isdirectory(pathname)) != 0) Line 2115  if ((sep = isdirectory(pathname)) != 0)
2115    }    }
2116    
2117  /* If the file is not a directory and not a regular file, skip it if that's  /* If the file is not a directory and not a regular file, skip it if that's
2118  been requested. */  been requested. Otherwise, check for explicit include/exclude. */
2119    
2120  else if (!isregfile(pathname) && DEE_action == DEE_SKIP) return 1;  else if ((!isregfile(pathname) && DEE_action == DEE_SKIP) ||
2121              !test_incexc(lastcomp, include_patterns, exclude_patterns))
2122            return -1;
2123    
2124  /* Control reaches here if we have a regular file, or if we have a directory  /* Control reaches here if we have a regular file, or if we have a directory
2125  and recursion or skipping was not requested, or if we have anything else and  and recursion or skipping was not requested, or if we have anything else and
# Line 1438  skipping was not requested. The scan pro Line 2127  skipping was not requested. The scan pro
2127  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
2128  the file name, or the filename was forced (-H). */  the file name, or the filename was forced (-H). */
2129    
2130  pathlen = strlen(pathname);  #if defined SUPPORT_LIBZ || defined SUPPORT_LIBBZ2
2131    pathlen = (int)(strlen(pathname));
2132    #endif
2133    
2134  /* Open using zlib if it is supported and the file name ends with .gz. */  /* Open using zlib if it is supported and the file name ends with .gz. */
2135    
# Line 1478  an attempt to read a .bz2 file indicates Line 2169  an attempt to read a .bz2 file indicates
2169  PLAIN_FILE:  PLAIN_FILE:
2170  #endif  #endif
2171    {    {
2172    in = fopen(pathname, "r");    in = fopen(pathname, "rb");
2173    handle = (void *)in;    handle = (void *)in;
2174    frtype = FR_PLAIN;    frtype = FR_PLAIN;
2175    }    }
# Line 1495  if (handle == NULL) Line 2186  if (handle == NULL)
2186    
2187  /* Now grep the file */  /* Now grep the file */
2188    
2189  rc = pcregrep(handle, frtype, (filenames > FN_DEFAULT ||  rc = pcregrep(handle, frtype, pathname, (filenames > FN_DEFAULT ||
2190    (filenames == FN_DEFAULT && !only_one_at_top))? pathname : NULL);    (filenames == FN_DEFAULT && !only_one_at_top))? pathname : NULL);
2191    
2192  /* Close in an appropriate manner. */  /* Close in an appropriate manner. */
# Line 1506  if (frtype == FR_LIBZ) Line 2197  if (frtype == FR_LIBZ)
2197  else  else
2198  #endif  #endif
2199    
2200  /* If it is a .bz2 file and the result is 2, it means that the first attempt to  /* If it is a .bz2 file and the result is 3, it means that the first attempt to
2201  read failed. If the error indicates that the file isn't in fact bzipped, try  read failed. If the error indicates that the file isn't in fact bzipped, try
2202  again as a normal file. */  again as a normal file. */
2203    
2204  #ifdef SUPPORT_LIBBZ2  #ifdef SUPPORT_LIBBZ2
2205  if (frtype == FR_LIBBZ2)  if (frtype == FR_LIBBZ2)
2206    {    {
2207    if (rc == 2)    if (rc == 3)
2208      {      {
2209      int errnum;      int errnum;
2210      const char *err = BZ2_bzerror(inbz2, &errnum);      const char *err = BZ2_bzerror(inbz2, &errnum);
# Line 1525  if (frtype == FR_LIBBZ2) Line 2216  if (frtype == FR_LIBBZ2)
2216      else if (!silent)      else if (!silent)
2217        fprintf(stderr, "pcregrep: Failed to read %s using bzlib: %s\n",        fprintf(stderr, "pcregrep: Failed to read %s using bzlib: %s\n",
2218          pathname, err);          pathname, err);
2219        rc = 2;    /* The normal "something went wrong" code */
2220      }      }
2221    BZ2_bzclose(inbz2);    BZ2_bzclose(inbz2);
2222    }    }
# Line 1542  return rc; Line 2234  return rc;
2234    
2235    
2236    
   
 /*************************************************  
 *                Usage function                  *  
 *************************************************/  
   
 static int  
 usage(int rc)  
 {  
 option_item *op;  
 fprintf(stderr, "Usage: pcregrep [-");  
 for (op = optionlist; op->one_char != 0; op++)  
   {  
   if (op->one_char > 0) fprintf(stderr, "%c", op->one_char);  
   }  
 fprintf(stderr, "] [long options] [pattern] [files]\n");  
 fprintf(stderr, "Type `pcregrep --help' for more information and the long "  
   "options.\n");  
 return rc;  
 }  
   
   
   
   
 /*************************************************  
 *                Help function                   *  
 *************************************************/  
   
 static void  
 help(void)  
 {  
 option_item *op;  
   
 printf("Usage: pcregrep [OPTION]... [PATTERN] [FILE1 FILE2 ...]\n");  
 printf("Search for PATTERN in each FILE or standard input.\n");  
 printf("PATTERN must be present if neither -e nor -f is used.\n");  
 printf("\"-\" can be used as a file name to mean STDIN.\n");  
   
 #ifdef SUPPORT_LIBZ  
 printf("Files whose names end in .gz are read using zlib.\n");  
 #endif  
   
 #ifdef SUPPORT_LIBBZ2  
 printf("Files whose names end in .bz2 are read using bzlib2.\n");  
 #endif  
   
 #if defined SUPPORT_LIBZ || defined SUPPORT_LIBBZ2  
 printf("Other files and the standard input are read as plain files.\n\n");  
 #else  
 printf("All files are read as plain files, without any interpretation.\n\n");  
 #endif  
   
 printf("Example: pcregrep -i 'hello.*world' menu.h main.c\n\n");  
 printf("Options:\n");  
   
 for (op = optionlist; op->one_char != 0; op++)  
   {  
   int n;  
   char s[4];  
   if (op->one_char > 0) sprintf(s, "-%c,", op->one_char); else strcpy(s, "   ");  
   n = 30 - printf("  %s --%s", s, op->long_name);  
   if (n < 1) n = 1;  
   printf("%.*s%s\n", n, "                    ", op->help_text);  
   }  
   
 printf("\nWhen reading patterns from a file instead of using a command line option,\n");  
 printf("trailing white space is removed and blank lines are ignored.\n");  
 printf("There is a maximum of %d patterns.\n", MAX_PATTERN_COUNT);  
   
 printf("\nWith no FILEs, read standard input. If fewer than two FILEs given, assume -h.\n");  
 printf("Exit status is 0 if any matches, 1 if no matches, and 2 if trouble.\n");  
 }  
   
   
   
   
2237  /*************************************************  /*************************************************
2238  *    Handle a single-letter, no data option      *  *    Handle a single-letter, no data option      *
2239  *************************************************/  *************************************************/
# Line 1627  handle_option(int letter, int options) Line 2244  handle_option(int letter, int options)
2244  switch(letter)  switch(letter)
2245    {    {
2246    case N_FOFFSETS: file_offsets = TRUE; break;    case N_FOFFSETS: file_offsets = TRUE; break;
2247    case N_HELP: help(); exit(0);    case N_HELP: help(); pcregrep_exit(0);
2248      case N_LBUFFER: line_buffered = TRUE; break;
2249    case N_LOFFSETS: line_offsets = number = TRUE; break;    case N_LOFFSETS: line_offsets = number = TRUE; break;
2250      case N_NOJIT: study_options &= ~PCRE_STUDY_JIT_COMPILE; break;
2251      case 'a': binary_files = BIN_TEXT; break;
2252    case 'c': count_only = TRUE; break;    case 'c': count_only = TRUE; break;
2253    case 'F': process_options |= PO_FIXED_STRINGS; break;    case 'F': process_options |= PO_FIXED_STRINGS; break;
2254    case 'H': filenames = FN_FORCE; break;    case 'H': filenames = FN_FORCE; break;
2255      case 'I': binary_files = BIN_NOMATCH; break;
2256    case 'h': filenames = FN_NONE; break;    case 'h': filenames = FN_NONE; break;
2257    case 'i': options |= PCRE_CASELESS; break;    case 'i': options |= PCRE_CASELESS; break;
2258    case 'l': filenames = FN_ONLY; break;    case 'l': omit_zero_count = TRUE; filenames = FN_MATCH_ONLY; break;
2259    case 'L': filenames = FN_NOMATCH_ONLY; break;    case 'L': filenames = FN_NOMATCH_ONLY; break;
2260    case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break;    case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break;
2261    case 'n': number = TRUE; break;    case 'n': number = TRUE; break;
2262    case 'o': only_matching = TRUE; break;  
2263      case 'o':
2264      only_matching_last = add_number(0, only_matching_last);
2265      if (only_matching == NULL) only_matching = only_matching_last;
2266      break;
2267    
2268    case 'q': quiet = TRUE; break;    case 'q': quiet = TRUE; break;
2269    case 'r': dee_action = dee_RECURSE; break;    case 'r': dee_action = dee_RECURSE; break;
2270    case 's': silent = TRUE; break;    case 's': silent = TRUE; break;
# Line 1648  switch(letter) Line 2274  switch(letter)
2274    case 'x': process_options |= PO_LINE_MATCH; break;    case 'x': process_options |= PO_LINE_MATCH; break;
2275    
2276    case 'V':    case 'V':
2277    fprintf(stderr, "pcregrep version %s\n", pcre_version());    fprintf(stdout, "pcregrep version %s\n", pcre_version());
2278    exit(0);    pcregrep_exit(0);
2279    break;    break;
2280    
2281    default:    default:
2282    fprintf(stderr, "pcregrep: Unknown option -%c\n", letter);    fprintf(stderr, "pcregrep: Unknown option -%c\n", letter);
2283    exit(usage(2));    pcregrep_exit(usage(2));
2284    }    }
2285    
2286  return options;  return options;
# Line 1692  return buffer; Line 2318  return buffer;
2318  *          Compile a single pattern              *  *          Compile a single pattern              *
2319  *************************************************/  *************************************************/
2320    
2321  /* When the -F option has been used, this is called for each substring.  /* Do nothing if the pattern has already been compiled. This is the case for
2322  Otherwise it's called for each supplied pattern.  include/exclude patterns read from a file.
2323    
2324    When the -F option has been used, each "pattern" may be a list of strings,
2325    separated by line breaks. They will be matched literally. We split such a
2326    string and compile the first substring, inserting an additional block into the
2327    pattern chain.
2328    
2329  Arguments:  Arguments:
2330    pattern        the pattern string    p              points to the pattern block
2331    options        the PCRE options    options        the PCRE options
2332    filename       the file name, or NULL for a command-line pattern    popts          the processing options
2333      fromfile       TRUE if the pattern was read from a file
2334      fromtext       file name or identifying text (e.g. "include")
2335    count          0 if this is the only command line pattern, or    count          0 if this is the only command line pattern, or
2336                   number of the command line pattern, or                   number of the command line pattern, or
2337                   linenumber for a pattern from a file                   linenumber for a pattern from a file
# Line 1707  Returns:         TRUE on success, FALSE Line 2340  Returns:         TRUE on success, FALSE
2340  */  */
2341    
2342  static BOOL  static BOOL
2343  compile_single_pattern(char *pattern, int options, char *filename, int count)  compile_pattern(patstr *p, int options, int popts, int fromfile,
2344      const char *fromtext, int count)
2345  {  {
2346  char buffer[MBUFTHIRD + 16];  char buffer[PATBUFSIZE];
2347  const char *error;  const char *error;
2348    char *ps = p->string;
2349    int patlen = strlen(ps);
2350  int errptr;  int errptr;
2351    
2352  if (pattern_count >= MAX_PATTERN_COUNT)  if (p->compiled != NULL) return TRUE;
   {  
   fprintf(stderr, "pcregrep: Too many %spatterns (max %d)\n",  
     (filename == NULL)? "command-line " : "", MAX_PATTERN_COUNT);  
   return FALSE;  
   }  
2353    
2354  sprintf(buffer, "%s%.*s%s", prefix[process_options], MBUFTHIRD, pattern,  if ((popts & PO_FIXED_STRINGS) != 0)
   suffix[process_options]);  
 pattern_list[pattern_count] =  
   pcre_compile(buffer, options, &error, &errptr, pcretables);  
 if (pattern_list[pattern_count] != NULL)  
2355    {    {
2356    pattern_count++;    int ellength;
2357    return TRUE;    char *eop = ps + patlen;
2358      char *pe = end_of_line(ps, eop, &ellength);
2359    
2360      if (ellength != 0)
2361        {
2362        if (add_pattern(pe, p) == NULL) return FALSE;
2363        patlen = (int)(pe - ps - ellength);
2364        }
2365    }    }
2366    
2367    sprintf(buffer, "%s%.*s%s", prefix[popts], patlen, ps, suffix[popts]);
2368    p->compiled = pcre_compile(buffer, options, &error, &errptr, pcretables);
2369    if (p->compiled != NULL) return TRUE;
2370    
2371  /* Handle compile errors */  /* Handle compile errors */
2372    
2373  errptr -= (int)strlen(prefix[process_options]);  errptr -= (int)strlen(prefix[popts]);
2374  if (errptr > (int)strlen(pattern)) errptr = (int)strlen(pattern);  if (errptr > patlen) errptr = patlen;
2375    
2376  if (filename == NULL)  if (fromfile)
2377    {    {
2378    if (count == 0)    fprintf(stderr, "pcregrep: Error in regex in line %d of %s "
2379      fprintf(stderr, "pcregrep: Error in command-line regex "      "at offset %d: %s\n", count, fromtext, errptr, error);
       "at offset %d: %s\n", errptr, error);  
   else  
     fprintf(stderr, "pcregrep: Error in %s command-line regex "  
       "at offset %d: %s\n", ordin(count), errptr, error);  
2380    }    }
2381  else  else
2382    {    {
2383    fprintf(stderr, "pcregrep: Error in regex in line %d of %s "    if (count == 0)
2384      "at offset %d: %s\n", count, filename, errptr, error);      fprintf(stderr, "pcregrep: Error in %s regex at offset %d: %s\n",
2385          fromtext, errptr, error);
2386      else
2387        fprintf(stderr, "pcregrep: Error in %s %s regex at offset %d: %s\n",
2388          ordin(count), fromtext, errptr, error);
2389    }    }
2390    
2391  return FALSE;  return FALSE;
# Line 1756  return FALSE; Line 2394  return FALSE;
2394    
2395    
2396  /*************************************************  /*************************************************
2397  *           Compile one supplied pattern         *  *     Read and compile a file of patterns        *
2398  *************************************************/  *************************************************/
2399    
2400  /* When the -F option has been used, each string may be a list of strings,  /* This is used for --filelist, --include-from, and --exclude-from.
 separated by line breaks. They will be matched literally.  
2401    
2402  Arguments:  Arguments:
2403    pattern        the pattern string    name         the name of the file; "-" is stdin
2404    options        the PCRE options    patptr       pointer to the pattern chain anchor
2405    filename       the file name, or NULL for a command-line pattern    patlastptr   pointer to the last pattern pointer
2406    count          0 if this is the only command line pattern, or    popts        the process options to pass to pattern_compile()
                  number of the command line pattern, or  
                  linenumber for a pattern from a file  
2407    
2408  Returns:         TRUE on success, FALSE after an error  Returns:       TRUE if all went well
2409  */  */
2410    
2411  static BOOL  static BOOL
2412  compile_pattern(char *pattern, int options, char *filename, int count)  read_pattern_file(char *name, patstr **patptr, patstr **patlastptr, int popts)
2413  {  {
2414  if ((process_options & PO_FIXED_STRINGS) != 0)  int linenumber = 0;
2415    FILE *f;
2416    char *filename;
2417    char buffer[PATBUFSIZE];
2418    
2419    if (strcmp(name, "-") == 0)
2420      {
2421      f = stdin;
2422      filename = stdin_name;
2423      }
2424    else
2425    {    {
2426    char *eop = pattern + strlen(pattern);    f = fopen(name, "r");
2427    char buffer[MBUFTHIRD];    if (f == NULL)
2428        {
2429        fprintf(stderr, "pcregrep: Failed to open %s: %s\n", name, strerror(errno));
2430        return FALSE;
2431        }
2432      filename = name;
2433      }
2434    
2435    while (fgets(buffer, PATBUFSIZE, f) != NULL)
2436      {
2437      char *s = buffer + (int)strlen(buffer);
2438      while (s > buffer && isspace((unsigned char)(s[-1]))) s--;
2439      *s = 0;
2440      linenumber++;
2441      if (buffer[0] == 0) continue;   /* Skip blank lines */
2442    
2443      /* Note: this call to add_pattern() puts a pointer to the local variable
2444      "buffer" into the pattern chain. However, that pointer is used only when
2445      compiling the pattern, which happens immediately below, so we flatten it
2446      afterwards, as a precaution against any later code trying to use it. */
2447    
2448      *patlastptr = add_pattern(buffer, *patlastptr);
2449      if (*patlastptr == NULL) return FALSE;
2450      if (*patptr == NULL) *patptr = *patlastptr;
2451    
2452      /* This loop is needed because compiling a "pattern" when -F is set may add
2453      on additional literal patterns if the original contains a newline. In the
2454      common case, it never will, because fgets() stops at a newline. However,
2455      the -N option can be used to give pcregrep a different newline setting. */
2456    
2457    for(;;)    for(;;)
2458      {      {
2459      int ellength;      if (!compile_pattern(*patlastptr, pcre_options, popts, TRUE, filename,
2460      char *p = end_of_line(pattern, eop, &ellength);          linenumber))
     if (ellength == 0)  
       return compile_single_pattern(pattern, options, filename, count);  
     sprintf(buffer, "%.*s", (int)(p - pattern - ellength), pattern);  
     pattern = p;  
     if (!compile_single_pattern(buffer, options, filename, count))  
2461        return FALSE;        return FALSE;
2462        (*patlastptr)->string = NULL;            /* Insurance */
2463        if ((*patlastptr)->next == NULL) break;
2464        *patlastptr = (*patlastptr)->next;
2465      }      }
2466    }    }
2467  else return compile_single_pattern(pattern, options, filename, count);  
2468    if (f != stdin) fclose(f);
2469    return TRUE;
2470  }  }
2471    
2472    
# Line 1808  main(int argc, char **argv) Line 2482  main(int argc, char **argv)
2482  {  {
2483  int i, j;  int i, j;
2484  int rc = 1;  int rc = 1;
 int pcre_options = 0;  
 int cmd_pattern_count = 0;  
 int hint_count = 0;  
 int errptr;  
2485  BOOL only_one_at_top;  BOOL only_one_at_top;
2486  char *patterns[MAX_PATTERN_COUNT];  patstr *cp;
2487    fnstr *fn;
2488  const char *locale_from = "--locale";  const char *locale_from = "--locale";
2489  const char *error;  const char *error;
2490    
2491    #ifdef SUPPORT_PCREGREP_JIT
2492    pcre_jit_stack *jit_stack = NULL;
2493    #endif
2494    
2495  /* 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;
2496  "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".
2497  */  Note that the return values from pcre_config(), though derived from the ASCII
2498    codes, are the same in EBCDIC environments, so we must use the actual values
2499    rather than escapes such as as '\r'. */
2500    
2501  (void)pcre_config(PCRE_CONFIG_NEWLINE, &i);  (void)pcre_config(PCRE_CONFIG_NEWLINE, &i);
2502  switch(i)  switch(i)
2503    {    {
2504    default:                 newline = (char *)"lf"; break;    default:               newline = (char *)"lf"; break;
2505    case '\r':               newline = (char *)"cr"; break;    case 13:               newline = (char *)"cr"; break;
2506    case ('\r' << 8) | '\n': newline = (char *)"crlf"; break;    case (13 << 8) | 10:   newline = (char *)"crlf"; break;
2507    case -1:                 newline = (char *)"any"; break;    case -1:               newline = (char *)"any"; break;
2508    case -2:                 newline = (char *)"anycrlf"; break;    case -2:               newline = (char *)"anycrlf"; break;
2509    }    }
2510    
2511  /* Process the options */  /* Process the options */
# Line 1847  for (i = 1; i < argc; i++) Line 2524  for (i = 1; i < argc; i++)
2524    
2525    if (argv[i][1] == 0)    if (argv[i][1] == 0)
2526      {      {
2527      if (pattern_filename != NULL || pattern_count > 0) break;      if (pattern_files != NULL || patterns != NULL) break;
2528        else exit(usage(2));        else pcregrep_exit(usage(2));
2529      }      }
2530    
2531    /* Handle a long name option, or -- to terminate the options */    /* Handle a long name option, or -- to terminate the options */
# Line 1870  for (i = 1; i < argc; i++) Line 2547  for (i = 1; i < argc; i++)
2547      Some options have variations in the long name spelling: specifically, we      Some options have variations in the long name spelling: specifically, we
2548      allow "regexp" because GNU grep allows it, though I personally go along      allow "regexp" because GNU grep allows it, though I personally go along
2549      with Jeffrey Friedl and Larry Wall in preferring "regex" without the "p".      with Jeffrey Friedl and Larry Wall in preferring "regex" without the "p".
2550      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
2551      these categories, fortunately. */      both these categories. */
2552    
2553      for (op = optionlist; op->one_char != 0; op++)      for (op = optionlist; op->one_char != 0; op++)
2554        {        {
2555        char *opbra = strchr(op->long_name, '(');        char *opbra = strchr(op->long_name, '(');
2556        char *equals = strchr(op->long_name, '=');        char *equals = strchr(op->long_name, '=');
2557        if (opbra == NULL)     /* Not a (p) case */  
2558          /* Handle options with only one spelling of the name */
2559    
2560          if (opbra == NULL)     /* Does not contain '(' */
2561          {          {
2562          if (equals == NULL)  /* Not thing=data case */          if (equals == NULL)  /* Not thing=data case */
2563            {            {
# Line 1885  for (i = 1; i < argc; i++) Line 2565  for (i = 1; i < argc; i++)
2565            }            }
2566          else                 /* Special case xxx=data */          else                 /* Special case xxx=data */
2567            {            {
2568            int oplen = equals - op->long_name;            int oplen = (int)(equals - op->long_name);
2569            int arglen = (argequals == NULL)? (int)strlen(arg) : argequals - arg;            int arglen = (argequals == NULL)?
2570                (int)strlen(arg) : (int)(argequals - arg);
2571            if (oplen == arglen && strncmp(arg, op->long_name, oplen) == 0)            if (oplen == arglen && strncmp(arg, op->long_name, oplen) == 0)
2572              {              {
2573              option_data = arg + arglen;              option_data = arg + arglen;
# Line 1899  for (i = 1; i < argc; i++) Line 2580  for (i = 1; i < argc; i++)
2580              }              }
2581            }            }
2582          }          }
2583        else                   /* Special case xxxx(p) */  
2584          /* Handle options with an alternate spelling of the name */
2585    
2586          else
2587          {          {
2588          char buff1[24];          char buff1[24];
2589          char buff2[24];          char buff2[24];
2590          int baselen = opbra - op->long_name;  
2591            int baselen = (int)(opbra - op->long_name);
2592            int fulllen = (int)(strchr(op->long_name, ')') - op->long_name + 1);
2593            int arglen = (argequals == NULL || equals == NULL)?
2594              (int)strlen(arg) : (int)(argequals - arg);
2595    
2596          sprintf(buff1, "%.*s", baselen, op->long_name);          sprintf(buff1, "%.*s", baselen, op->long_name);
2597          sprintf(buff2, "%s%.*s", buff1,          sprintf(buff2, "%s%.*s", buff1, fulllen - baselen - 2, opbra + 1);
2598            (int)strlen(op->long_name) - baselen - 2, opbra + 1);  
2599          if (strcmp(arg, buff1) == 0 || strcmp(arg, buff2) == 0)          if (strncmp(arg, buff1, arglen) == 0 ||
2600               strncmp(arg, buff2, arglen) == 0)
2601              {
2602              if (equals != NULL && argequals != NULL)
2603                {
2604                option_data = argequals;
2605                if (*option_data == '=')
2606                  {
2607                  option_data++;
2608                  longopwasequals = TRUE;
2609                  }
2610                }
2611            break;            break;
2612              }
2613          }          }
2614        }        }
2615    
2616      if (op->one_char == 0)      if (op->one_char == 0)
2617        {        {
2618        fprintf(stderr, "pcregrep: Unknown option %s\n", argv[i]);        fprintf(stderr, "pcregrep: Unknown option %s\n", argv[i]);
2619        exit(usage(2));        pcregrep_exit(usage(2));
2620        }        }
2621      }      }
2622    
   
2623    /* Jeffrey Friedl's debugging harness uses these additional options which    /* Jeffrey Friedl's debugging harness uses these additional options which
2624    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
2625    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 1950  for (i = 1; i < argc; i++) Line 2650  for (i = 1; i < argc; i++)
2650      {      {
2651      char *s = argv[i] + 1;      char *s = argv[i] + 1;
2652      longop = FALSE;      longop = FALSE;
2653    
2654      while (*s != 0)      while (*s != 0)
2655        {        {
2656        for (op = optionlist; op->one_char != 0; op++)        for (op = optionlist; op->one_char != 0; op++)
2657          { if (*s == op->one_char) break; }          {
2658            if (*s == op->one_char) break;
2659            }
2660        if (op->one_char == 0)        if (op->one_char == 0)
2661          {          {
2662          fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n",          fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n",
2663            *s, argv[i]);            *s, argv[i]);
2664          exit(usage(2));          pcregrep_exit(usage(2));
2665            }
2666    
2667          option_data = s+1;
2668    
2669          /* Break out if this is the last character in the string; it's handled
2670          below like a single multi-char option. */
2671    
2672          if (*option_data == 0) break;
2673    
2674          /* Check for a single-character option that has data: OP_OP_NUMBER(S)
2675          are used for ones that either have a numerical number or defaults, i.e.
2676          the data is optional. If a digit follows, there is data; if not, carry on
2677          with other single-character options in the same string. */
2678    
2679          if (op->type == OP_OP_NUMBER || op->type == OP_OP_NUMBERS)
2680            {
2681            if (isdigit((unsigned char)s[1])) break;
2682          }          }
2683        if (op->type != OP_NODATA || s[1] == 0)        else   /* Check for an option with data */
2684          {          {
2685          option_data = s+1;          if (op->type != OP_NODATA) break;
         break;  
2686          }          }
2687    
2688          /* Handle a single-character option with no data, then loop for the
2689          next character in the string. */
2690    
2691        pcre_options = handle_option(*s++, pcre_options);        pcre_options = handle_option(*s++, pcre_options);
2692        }        }
2693      }      }
2694    
2695    /* At this point we should have op pointing to a matched option. If the type    /* At this point we should have op pointing to a matched option. If the type
2696    is NO_DATA, it means that there is no data, and the option might set    is NO_DATA, it means that there is no data, and the option might set
2697    something in the PCRE options. */    something in the PCRE options. */
# Line 1979  for (i = 1; i < argc; i++) Line 2702  for (i = 1; i < argc; i++)
2702      continue;      continue;
2703      }      }
2704    
2705    /* 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(S), it's an option that
2706    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
2707    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",
2708    Jeffrey Friedl's special -S debugging option. */    "only-matching", and Jeffrey Friedl's special -S debugging option. */
2709    
2710    if (*option_data == 0 &&    if (*option_data == 0 &&
2711        (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER))        (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER ||
2712           op->type == OP_OP_NUMBERS))
2713      {      {
2714      switch (op->one_char)      switch (op->one_char)
2715        {        {
2716        case N_COLOUR:        case N_COLOUR:
2717        colour_option = (char *)"auto";        colour_option = (char *)"auto";
2718        break;        break;
2719    
2720          case 'o':
2721          only_matching_last = add_number(0, only_matching_last);
2722          if (only_matching == NULL) only_matching = only_matching_last;
2723          break;
2724    
2725  #ifdef JFRIEDL_DEBUG  #ifdef JFRIEDL_DEBUG
2726        case 'S':        case 'S':
2727        S_arg = 0;        S_arg = 0;
# Line 2008  for (i = 1; i < argc; i++) Line 2738  for (i = 1; i < argc; i++)
2738      if (i >= argc - 1 || longopwasequals)      if (i >= argc - 1 || longopwasequals)
2739        {        {
2740        fprintf(stderr, "pcregrep: Data missing after %s\n", argv[i]);        fprintf(stderr, "pcregrep: Data missing after %s\n", argv[i]);
2741        exit(usage(2));        pcregrep_exit(usage(2));
2742        }        }
2743      option_data = argv[++i];      option_data = argv[++i];
2744      }      }
2745    
2746    /* If the option type is OP_PATLIST, it's the -e option, which can be called    /* If the option type is OP_OP_NUMBERS, the value is a number that is to be
2747    multiple times to create a list of patterns. */    added to a chain of numbers. */
2748    
2749      if (op->type == OP_OP_NUMBERS)
2750        {
2751        unsigned long int n = decode_number(option_data, op, longop);
2752        omdatastr *omd = (omdatastr *)op->dataptr;
2753        *(omd->lastptr) = add_number((int)n, *(omd->lastptr));
2754        if (*(omd->anchor) == NULL) *(omd->anchor) = *(omd->lastptr);
2755        }
2756    
2757      /* If the option type is OP_PATLIST, it's the -e option, or one of the
2758      include/exclude options, which can be called multiple times to create lists
2759      of patterns. */
2760    
2761    if (op->type == OP_PATLIST)    else if (op->type == OP_PATLIST)
2762      {      {
2763      if (cmd_pattern_count >= MAX_PATTERN_COUNT)      patdatastr *pd = (patdatastr *)op->dataptr;
2764        *(pd->lastptr) = add_pattern(option_data, *(pd->lastptr));
2765        if (*(pd->lastptr) == NULL) goto EXIT2;
2766        if (*(pd->anchor) == NULL) *(pd->anchor) = *(pd->lastptr);
2767        }
2768    
2769      /* If the option type is OP_FILELIST, it's one of the options that names a
2770      file. */
2771    
2772      else if (op->type == OP_FILELIST)
2773        {
2774        fndatastr *fd = (fndatastr *)op->dataptr;
2775        fn = (fnstr *)malloc(sizeof(fnstr));
2776        if (fn == NULL)
2777        {        {
2778        fprintf(stderr, "pcregrep: Too many command-line patterns (max %d)\n",        fprintf(stderr, "pcregrep: malloc failed\n");
2779          MAX_PATTERN_COUNT);        goto EXIT2;
2780        return 2;        }
2781        fn->next = NULL;
2782        fn->name = option_data;
2783        if (*(fd->anchor) == NULL)
2784          *(fd->anchor) = fn;
2785        else
2786          (*(fd->lastptr))->next = fn;
2787        *(fd->lastptr) = fn;
2788        }
2789    
2790      /* Handle OP_BINARY_FILES */
2791    
2792      else if (op->type == OP_BINFILES)
2793        {
2794        if (strcmp(option_data, "binary") == 0)
2795          binary_files = BIN_BINARY;
2796        else if (strcmp(option_data, "without-match") == 0)
2797          binary_files = BIN_NOMATCH;
2798        else if (strcmp(option_data, "text") == 0)
2799          binary_files = BIN_TEXT;
2800        else
2801          {
2802          fprintf(stderr, "pcregrep: unknown value \"%s\" for binary-files\n",
2803            option_data);
2804          pcregrep_exit(usage(2));
2805        }        }
     patterns[cmd_pattern_count++] = option_data;  
2806      }      }
2807    
2808    /* Otherwise, deal with single string or numeric data values. */    /* Otherwise, deal with a single string or numeric data value. */
2809    
2810    else if (op->type != OP_NUMBER && op->type != OP_OP_NUMBER)    else if (op->type != OP_NUMBER && op->type != OP_LONGNUMBER &&
2811               op->type != OP_OP_NUMBER)
2812      {      {
2813      *((char **)op->dataptr) = option_data;      *((char **)op->dataptr) = option_data;
2814      }      }
2815    else    else
2816      {      {
2817      char *endptr;      unsigned long int n = decode_number(option_data, op, longop);
2818      int n = strtoul(option_data, &endptr, 10);      if (op->type == OP_LONGNUMBER) *((unsigned long int *)op->dataptr) = n;
2819      if (*endptr != 0)        else *((int *)op->dataptr) = n;
       {  
       if (longop)  
         {  
         char *equals = strchr(op->long_name, '=');  
         int nlen = (equals == NULL)? (int)strlen(op->long_name) :  
           equals - op->long_name;  
         fprintf(stderr, "pcregrep: Malformed number \"%s\" after --%.*s\n",  
           option_data, nlen, op->long_name);  
         }  
       else  
         fprintf(stderr, "pcregrep: Malformed number \"%s\" after -%c\n",  
           option_data, op->one_char);  
       exit(usage(2));  
       }  
     *((int *)op->dataptr) = n;  
2820      }      }
2821    }    }
2822    
# Line 2066  if (both_context > 0) Line 2830  if (both_context > 0)
2830    }    }
2831    
2832  /* Only one of --only-matching, --file-offsets, or --line-offsets is permitted.  /* Only one of --only-matching, --file-offsets, or --line-offsets is permitted.
2833  However, the latter two set the only_matching flag. */  However, all three set show_only_matching because they display, each in their
2834    own way, only the data that has matched. */
2835    
2836  if ((only_matching && (file_offsets || line_offsets)) ||  if ((only_matching != NULL && (file_offsets || line_offsets)) ||
2837      (file_offsets && line_offsets))      (file_offsets && line_offsets))
2838    {    {
2839    fprintf(stderr, "pcregrep: Cannot mix --only-matching, --file-offsets "    fprintf(stderr, "pcregrep: Cannot mix --only-matching, --file-offsets "
2840      "and/or --line-offsets\n");      "and/or --line-offsets\n");
2841    exit(usage(2));    pcregrep_exit(usage(2));
2842    }    }
2843    
2844  if (file_offsets || line_offsets) only_matching = TRUE;  if (only_matching != NULL || file_offsets || line_offsets)
2845      show_only_matching = TRUE;
2846    
2847  /* 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
2848  LC_ALL environment variable is set, and if so, use it. */  LC_ALL environment variable is set, and if so, use it. */
# Line 2200  if (jfriedl_XT != 0 || jfriedl_XR != 0) Line 2966  if (jfriedl_XT != 0 || jfriedl_XR != 0)
2966    }    }
2967  #endif  #endif
2968    
2969  /* Get memory to store the pattern and hints lists. */  /* Get memory for the main buffer. */
2970    
2971  pattern_list = (pcre **)malloc(MAX_PATTERN_COUNT * sizeof(pcre *));  bufsize = 3*bufthird;
2972  hints_list = (pcre_extra **)malloc(MAX_PATTERN_COUNT * sizeof(pcre_extra *));  main_buffer = (char *)malloc(bufsize);
2973    
2974  if (pattern_list == NULL || hints_list == NULL)  if (main_buffer == NULL)
2975    {    {
2976    fprintf(stderr, "pcregrep: malloc failed\n");    fprintf(stderr, "pcregrep: malloc failed\n");
2977    goto EXIT2;    goto EXIT2;
2978    }    }
2979    
2980  /* If no patterns were provided by -e, and there is no file provided by -f,  /* If no patterns were provided by -e, and there are no files provided by -f,
2981  the first argument is the one and only pattern, and it must exist. */  the first argument is the one and only pattern, and it must exist. */
2982    
2983  if (cmd_pattern_count == 0 && pattern_filename == NULL)  if (patterns == NULL && pattern_files == NULL)
2984    {    {
2985    if (i >= argc) return usage(2);    if (i >= argc) return usage(2);
2986    patterns[cmd_pattern_count++] = argv[i++];    patterns = patterns_last = add_pattern(argv[i++], NULL);
2987      if (patterns == NULL) goto EXIT2;
2988    }    }
2989    
2990  /* Compile the patterns that were provided on the command line, either by  /* Compile the patterns that were provided on the command line, either by
2991  multiple uses of -e or as a single unkeyed pattern. */  multiple uses of -e or as a single unkeyed pattern. We cannot do this until
2992    after all the command-line options are read so that we know which PCRE options
2993    to use. When -F is used, compile_pattern() may add another block into the
2994    chain, so we must not access the next pointer till after the compile. */
2995    
2996  for (j = 0; j < cmd_pattern_count; j++)  for (j = 1, cp = patterns; cp != NULL; j++, cp = cp->next)
2997    {    {
2998    if (!compile_pattern(patterns[j], pcre_options, NULL,    if (!compile_pattern(cp, pcre_options, process_options, FALSE, "command-line",
2999         (j == 0 && cmd_pattern_count == 1)? 0 : j + 1))         (j == 1 && patterns->next == NULL)? 0 : j))
3000      goto EXIT2;      goto EXIT2;
3001    }    }
3002    
3003  /* Compile the regular expressions that are provided in a file. */  /* Read and compile the regular expressions that are provided in files. */
3004    
3005  if (pattern_filename != NULL)  for (fn = pattern_files; fn != NULL; fn = fn->next)
3006    {    {
3007    int linenumber = 0;    if (!read_pattern_file(fn->name, &patterns, &patterns_last, process_options))
3008    FILE *f;      goto EXIT2;
3009    char *filename;    }
   char buffer[MBUFTHIRD];  
3010    
3011    if (strcmp(pattern_filename, "-") == 0)  /* Study the regular expressions, as we will be running them many times. If an
3012      {  extra block is needed for a limit, set PCRE_STUDY_EXTRA_NEEDED so that one is
3013      f = stdin;  returned, even if studying produces no data. */
     filename = stdin_name;  
     }  
   else  
     {  
     f = fopen(pattern_filename, "r");  
     if (f == NULL)  
       {  
       fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pattern_filename,  
         strerror(errno));  
       goto EXIT2;  
       }  
     filename = pattern_filename;  
     }  
3014    
3015    while (fgets(buffer, MBUFTHIRD, f) != NULL)  if (match_limit > 0 || match_limit_recursion > 0)
3016      {    study_options |= PCRE_STUDY_EXTRA_NEEDED;
     char *s = buffer + (int)strlen(buffer);  
     while (s > buffer && isspace((unsigned char)(s[-1]))) s--;  
     *s = 0;  
     linenumber++;  
     if (buffer[0] == 0) continue;   /* Skip blank lines */  
     if (!compile_pattern(buffer, pcre_options, filename, linenumber))  
       goto EXIT2;  
     }  
3017    
3018    if (f != stdin) fclose(f);  /* Unless JIT has been explicitly disabled, arrange a stack for it to use. */
   }  
3019    
3020  /* Study the regular expressions, as we will be running them many times */  #ifdef SUPPORT_PCREGREP_JIT
3021    if ((study_options & PCRE_STUDY_JIT_COMPILE) != 0)
3022      jit_stack = pcre_jit_stack_alloc(32*1024, 1024*1024);
3023    #endif
3024    
3025  for (j = 0; j < pattern_count; j++)  for (j = 1, cp = patterns; cp != NULL; j++, cp = cp->next)
3026    {    {
3027    hints_list[j] = pcre_study(pattern_list[j], 0, &error);    cp->hint = pcre_study(cp->compiled, study_options, &error);
3028    if (error != NULL)    if (error != NULL)
3029      {      {
3030      char s[16];      char s[16];
3031      if (pattern_count == 1) s[0] = 0; else sprintf(s, " number %d", j);      if (patterns->next == NULL) s[0] = 0; else sprintf(s, " number %d", j);
3032      fprintf(stderr, "pcregrep: Error while studying regex%s: %s\n", s, error);      fprintf(stderr, "pcregrep: Error while studying regex%s: %s\n", s, error);
3033      goto EXIT2;      goto EXIT2;
3034      }      }
3035    hint_count++;  #ifdef SUPPORT_PCREGREP_JIT
3036      if (jit_stack != NULL && cp->hint != NULL)
3037        pcre_assign_jit_stack(cp->hint, NULL, jit_stack);
3038    #endif
3039    }    }
3040    
3041  /* If there are include or exclude patterns, compile them. */  /* If --match-limit or --recursion-limit was set, put the value(s) into the
3042    pcre_extra block for each pattern. There will always be an extra block because
3043    of the use of PCRE_STUDY_EXTRA_NEEDED above. */
3044    
3045  if (exclude_pattern != NULL)  for (cp = patterns; cp != NULL; cp = cp->next)
3046    {    {
3047    exclude_compiled = pcre_compile(exclude_pattern, 0, &error, &errptr,    if (match_limit > 0)
     pcretables);  
   if (exclude_compiled == NULL)  
3048      {      {
3049      fprintf(stderr, "pcregrep: Error in 'exclude' regex at offset %d: %s\n",      cp->hint->flags |= PCRE_EXTRA_MATCH_LIMIT;
3050        errptr, error);      cp->hint->match_limit = match_limit;
3051      goto EXIT2;      }
3052    
3053      if (match_limit_recursion > 0)
3054        {
3055        cp->hint->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
3056        cp->hint->match_limit_recursion = match_limit_recursion;
3057      }      }
3058    }    }
3059    
3060  if (include_pattern != NULL)  /* If there are include or exclude patterns read from the command line, compile
3061    them. -F, -w, and -x do not apply, so the third argument of compile_pattern is
3062    0. */
3063    
3064    for (j = 0; j < 4; j++)
3065    {    {
3066    include_compiled = pcre_compile(include_pattern, 0, &error, &errptr,    int k;
3067      pcretables);    for (k = 1, cp = *(incexlist[j]); cp != NULL; k++, cp = cp->next)
   if (include_compiled == NULL)  
3068      {      {
3069      fprintf(stderr, "pcregrep: Error in 'include' regex at offset %d: %s\n",      if (!compile_pattern(cp, pcre_options, 0, FALSE, incexname[j],
3070        errptr, error);           (k == 1 && cp->next == NULL)? 0 : k))
3071      goto EXIT2;        goto EXIT2;
3072      }      }
3073    }    }
3074    
3075  if (exclude_dir_pattern != NULL)  /* Read and compile include/exclude patterns from files. */
3076    
3077    for (fn = include_from; fn != NULL; fn = fn->next)
3078    {    {
3079    exclude_dir_compiled = pcre_compile(exclude_dir_pattern, 0, &error, &errptr,    if (!read_pattern_file(fn->name, &include_patterns, &include_patterns_last, 0))
     pcretables);  
   if (exclude_dir_compiled == NULL)  
     {  
     fprintf(stderr, "pcregrep: Error in 'exclude_dir' regex at offset %d: %s\n",  
       errptr, error);  
3080      goto EXIT2;      goto EXIT2;
     }  
3081    }    }
3082    
3083  if (include_dir_pattern != NULL)  for (fn = exclude_from; fn != NULL; fn = fn->next)
3084    {    {
3085    include_dir_compiled = pcre_compile(include_dir_pattern, 0, &error, &errptr,    if (!read_pattern_file(fn->name, &exclude_patterns, &exclude_patterns_last, 0))
     pcretables);  
   if (include_dir_compiled == NULL)  
     {  
     fprintf(stderr, "pcregrep: Error in 'include_dir' regex at offset %d: %s\n",  
       errptr, error);  
3086      goto EXIT2;      goto EXIT2;
     }  
3087    }    }
3088    
3089  /* If there are no further arguments, do the business on stdin and exit. */  /* If there are no files that contain lists of files to search, and there are
3090    no file arguments, search stdin, and then exit. */
3091    
3092  if (i >= argc)  if (file_lists == NULL && i >= argc)
3093    {    {
3094    rc = pcregrep(stdin, FR_PLAIN, (filenames > FN_DEFAULT)? stdin_name : NULL);    rc = pcregrep(stdin, FR_PLAIN, stdin_name,
3095        (filenames > FN_DEFAULT)? stdin_name : NULL);
3096    goto EXIT;    goto EXIT;
3097    }    }
3098    
3099  /* Otherwise, work through the remaining arguments as files or directories.  /* If any files that contains a list of files to search have been specified,
3100  Pass in the fact that there is only one argument at top level - this suppresses  read them line by line and search the given files. */
3101  the file name if the argument is not a directory and filenames are not  
3102  otherwise forced. */  for (fn = file_lists; fn != NULL; fn = fn->next)
3103      {
3104      char buffer[PATBUFSIZE];
3105      FILE *fl;
3106      if (strcmp(fn->name, "-") == 0) fl = stdin; else
3107        {
3108        fl = fopen(fn->name, "rb");
3109        if (fl == NULL)
3110          {
3111          fprintf(stderr, "pcregrep: Failed to open %s: %s\n", fn->name,
3112            strerror(errno));
3113          goto EXIT2;
3114          }
3115        }
3116      while (fgets(buffer, PATBUFSIZE, fl) != NULL)
3117        {
3118        int frc;
3119        char *end = buffer + (int)strlen(buffer);
3120        while (end > buffer && isspace(end[-1])) end--;
3121        *end = 0;
3122        if (*buffer != 0)
3123          {
3124          frc = grep_or_recurse(buffer, dee_action == dee_RECURSE, FALSE);
3125          if (frc > 1) rc = frc;
3126            else if (frc == 0 && rc == 1) rc = 0;
3127          }
3128        }
3129      if (fl != stdin) fclose(fl);
3130      }
3131    
3132    /* After handling file-list, work through remaining arguments. Pass in the fact
3133    that there is only one argument at top level - this suppresses the file name if
3134    the argument is not a directory and filenames are not otherwise forced. */
3135    
3136  only_one_at_top = i == argc - 1;   /* Catch initial value of i */  only_one_at_top = i == argc - 1 && file_lists == NULL;
3137    
3138  for (; i < argc; i++)  for (; i < argc; i++)
3139    {    {
# Line 2359  for (; i < argc; i++) Line 3144  for (; i < argc; i++)
3144    }    }
3145    
3146  EXIT:  EXIT:
3147  if (pattern_list != NULL)  #ifdef SUPPORT_PCREGREP_JIT
3148    {  if (jit_stack != NULL) pcre_jit_stack_free(jit_stack);
3149    for (i = 0; i < pattern_count; i++) free(pattern_list[i]);  #endif
3150    free(pattern_list);  
3151    }  if (main_buffer != NULL) free(main_buffer);
3152  if (hints_list != NULL)  
3153    free_pattern_chain(patterns);
3154    free_pattern_chain(include_patterns);
3155    free_pattern_chain(include_dir_patterns);
3156    free_pattern_chain(exclude_patterns);
3157    free_pattern_chain(exclude_dir_patterns);
3158    
3159    free_file_chain(exclude_from);
3160    free_file_chain(include_from);
3161    free_file_chain(pattern_files);
3162    free_file_chain(file_lists);
3163    
3164    while (only_matching != NULL)
3165    {    {
3166    for (i = 0; i < hint_count; i++) free(hints_list[i]);    omstr *this = only_matching;
3167    free(hints_list);    only_matching = this->next;
3168      free(this);
3169    }    }
3170  return rc;  
3171    pcregrep_exit(rc);
3172    
3173  EXIT2:  EXIT2:
3174  rc = 2;  rc = 2;

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