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3737 grep does not support -H option


  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * grep - pattern matching program - combined grep, egrep, and fgrep.
  29  *      Based on MKS grep command, with XCU & Solaris mods.
  30  */
  31 
  32 /*
  33  * Copyright 1985, 1992 by Mortice Kern Systems Inc.  All rights reserved.
  34  *
  35  */
  36 
  37 /* Copyright 2012 Nexenta Systems, Inc.  All rights reserved. */
  38 




  39 #include <string.h>
  40 #include <stdlib.h>
  41 #include <ctype.h>
  42 #include <stdarg.h>
  43 #include <regex.h>
  44 #include <limits.h>
  45 #include <sys/types.h>
  46 #include <sys/stat.h>
  47 #include <fcntl.h>
  48 #include <stdio.h>
  49 #include <locale.h>
  50 #include <wchar.h>
  51 #include <errno.h>
  52 #include <unistd.h>
  53 #include <wctype.h>
  54 #include <ftw.h>
  55 #include <sys/param.h>
  56 


  57 #define BSIZE           512             /* Size of block for -b */
  58 #define BUFSIZE         8192            /* Input buffer size */
  59 #define MAX_DEPTH       1000            /* how deep to recurse */
  60 
  61 #define M_CSETSIZE      256             /* singlebyte chars */
  62 static int      bmglen;                 /* length of BMG pattern */
  63 static char     *bmgpat;                /* BMG pattern */
  64 static int      bmgtab[M_CSETSIZE];     /* BMG delta1 table */
  65 
  66 typedef struct  _PATTERN        {
  67         char    *pattern;               /* original pattern */
  68         wchar_t *wpattern;              /* wide, lowercased pattern */
  69         struct  _PATTERN        *next;
  70         regex_t re;                     /* compiled pattern */
  71 } PATTERN;
  72 
  73 static PATTERN  *patterns;
  74 static char     errstr[128];            /* regerror string buffer */
  75 static int      regflags = 0;           /* regcomp options */
  76 static int      matched = 0;            /* return of the grep() */
  77 static int      errors = 0;             /* count of errors */
  78 static uchar_t  fgrep = 0;              /* Invoked as fgrep */
  79 static uchar_t  egrep = 0;              /* Invoked as egrep */
  80 static uchar_t  nvflag = 1;             /* Print matching lines */
  81 static uchar_t  cflag;                  /* Count of matches */
  82 static uchar_t  iflag;                  /* Case insensitve matching */

  83 static uchar_t  hflag;                  /* Supress printing of filename */
  84 static uchar_t  lflag;                  /* Print file names of matches */
  85 static uchar_t  nflag;                  /* Precede lines by line number */
  86 static uchar_t  rflag;                  /* Search directories recursively */
  87 static uchar_t  bflag;                  /* Preccede matches by block number */
  88 static uchar_t  sflag;                  /* Suppress file error messages */
  89 static uchar_t  qflag;                  /* Suppress standard output */
  90 static uchar_t  wflag;                  /* Search for expression as a word */
  91 static uchar_t  xflag;                  /* Anchoring */
  92 static uchar_t  Eflag;                  /* Egrep or -E flag */
  93 static uchar_t  Fflag;                  /* Fgrep or -F flag */
  94 static uchar_t  Rflag;                  /* Like rflag, but follow symlinks */
  95 static uchar_t  outfn;                  /* Put out file name */
  96 static char     *cmdname;
  97 
  98 static int      use_wchar, use_bmg, mblocale;
  99 
 100 static size_t   outbuflen, prntbuflen;
 101 static char     *prntbuf;
 102 static wchar_t  *outline;


 138         /*
 139          * Skip leading slashes
 140          */
 141         cmdname = argv[0];
 142         if (ap = strrchr(cmdname, '/'))
 143                 cmdname = ap + 1;
 144 
 145         ap = cmdname;
 146         /*
 147          * Detect egrep/fgrep via command name, map to -E and -F options.
 148          */
 149         if (*ap == 'e' || *ap == 'E') {
 150                 regflags |= REG_EXTENDED;
 151                 egrep++;
 152         } else {
 153                 if (*ap == 'f' || *ap == 'F') {
 154                         fgrep++;
 155                 }
 156         }
 157 
 158         while ((c = getopt(argc, argv, "vwchilnrbse:f:qxEFIR")) != EOF) {
 159                 switch (c) {
 160                 case 'v':       /* POSIX: negate matches */
 161                         nvflag = 0;
 162                         break;
 163 
 164                 case 'c':       /* POSIX: write count */
 165                         cflag++;
 166                         break;
 167 
 168                 case 'i':       /* POSIX: ignore case */
 169                         iflag++;
 170                         regflags |= REG_ICASE;
 171                         break;
 172 
 173                 case 'l':       /* POSIX: Write filenames only */
 174                         lflag++;
 175                         break;
 176 
 177                 case 'n':       /* POSIX: Write line numbers */
 178                         nflag++;


 199                                     gettext("%s: out of memory\n"),
 200                                     cmdname);
 201                                 exit(2);
 202                         }
 203                         *(pattern_list + n_pattern - 1) = optarg;
 204                         break;
 205 
 206                 case 'f':       /* POSIX: pattern file */
 207                         fflag = 1;
 208                         n_file++;
 209                         file_list = realloc(file_list,
 210                             sizeof (char *) * n_file);
 211                         if (file_list == NULL) {
 212                                 (void) fprintf(stderr,
 213                                     gettext("%s: out of memory\n"),
 214                                     cmdname);
 215                                 exit(2);
 216                         }
 217                         *(file_list + n_file - 1) = optarg;
 218                         break;


 219                 case 'h':       /* Solaris: supress printing of file name */
 220                         hflag = 1;






 221                         break;
 222 
 223                 case 'q':       /* POSIX: quiet: status only */
 224                         qflag++;
 225                         break;
 226 
 227                 case 'w':       /* Solaris: treat pattern as word */
 228                         wflag++;
 229                         break;
 230 
 231                 case 'x':       /* POSIX: full line matches */
 232                         xflag++;
 233                         regflags |= REG_ANCHOR;
 234                         break;
 235 
 236                 case 'E':       /* POSIX: Extended RE's */
 237                         regflags |= REG_EXTENDED;
 238                         Eflag++;
 239                         break;
 240 


 277                 if (egrep)
 278                         Eflag++;
 279                 else                    /* Else fgrep */
 280                         Fflag++;
 281         }
 282 
 283         if (wflag && (Eflag || Fflag)) {
 284                 /*
 285                  * -w cannot be specified with grep -F
 286                  */
 287                 usage();
 288         }
 289 
 290         /*
 291          * -E and -F flags are mutually exclusive - check for this
 292          */
 293         if (Eflag && Fflag)
 294                 usage();
 295 
 296         /*






 297          * -c, -l and -q flags are mutually exclusive
 298          * We have -c override -l like in Solaris.
 299          * -q overrides -l & -c programmatically in grep() function.
 300          */
 301         if (cflag && lflag)
 302                 lflag = 0;
 303 
 304         argv += optind - 1;
 305         argc -= optind - 1;
 306 
 307         /*
 308          * Now handling -e and -f option
 309          */
 310         if (pattern_list) {
 311                 for (i = 0; i < n_pattern; i++) {
 312                         addpattern(pattern_list[i]);
 313                 }
 314                 free(pattern_list);
 315         }
 316         if (file_list) {


 329                 addpattern(argv[1]);
 330                 argc--;
 331                 argv++;
 332         }
 333 
 334         /*
 335          * If -x flag is not specified or -i flag is specified
 336          * with fgrep in a multibyte locale, need to use
 337          * the wide character APIs.  Otherwise, byte-oriented
 338          * process will be done.
 339          */
 340         use_wchar = Fflag && mblocale && (!xflag || iflag);
 341 
 342         /*
 343          * Compile Patterns and also decide if BMG can be used
 344          */
 345         fixpatterns();
 346 
 347         /* Process all files: stdin, or rest of arg list */
 348         if (argc < 2) {
 349                 matched = grep(0, gettext("(standard input)"));
 350         } else {
 351                 if (argc > 2 && hflag == 0)
 352                         outfn = 1;      /* Print filename on match line */
 353                 for (argv++; *argv != NULL; argv++) {
 354                         process_path(*argv);
 355                 }
 356         }
 357         /*
 358          * Return() here is used instead of exit
 359          */
 360 
 361         (void) fflush(stdout);
 362 
 363         if (errors)
 364                 return (2);
 365         return (matched ? 0 : 1);
 366 }
 367 
 368 static void
 369 process_path(const char *path)
 370 {
 371         struct  stat st;


1095                         matches++;
1096                         /*
1097                          * Handle q, l, and c flags.
1098                          */
1099                         if (qflag) {
1100                                 /* no need to continue */
1101                                 /*
1102                                  * End of this line is ptrend.
1103                                  * We have read up to ptr + data_len.
1104                                  */
1105                                 off_t   pos;
1106                                 pos = ptr + data_len - (ptrend + 1);
1107                                 (void) lseek(fd, -pos, SEEK_CUR);
1108                                 exit(0);
1109                         }
1110                         if (lflag) {
1111                                 (void) printf("%s\n", fn);
1112                                 break;
1113                         }
1114                         if (!cflag) {
1115                                 if (outfn) {
1116                                         (void) printf("%s:", fn);
1117                                 }
1118                                 if (bflag) {
1119                                         (void) printf("%lld:", (offset_t)
1120                                             (line_offset / BSIZE));
1121                                 }
1122                                 if (nflag) {
1123                                         (void) printf("%lld:", lineno);
1124                                 }
1125                                 *ptrend = '\n';
1126                                 (void) fwrite(ptr, 1, line_len + 1, stdout);
1127                         }
1128                         if (ferror(stdout)) {
1129                                 return (0);
1130                         }
1131                 }
1132 L_skip_line:
1133                 if (!newlinep)
1134                         break;
1135 
1136                 data_len -= line_len + 1;
1137                 line_offset += line_len + 1;
1138                 ptr = ptrend + 1;
1139         }
1140 
1141         if (cflag) {
1142                 if (outfn) {
1143                         (void) printf("%s:", fn);
1144                 }
1145                 if (!qflag) {
1146                         (void) printf("%lld\n", matches);
1147                 }
1148         }
1149         return (matches != 0);
1150 }
1151 
1152 /*
1153  * usage message for grep
1154  */
1155 static void
1156 usage(void)
1157 {
1158         if (egrep || fgrep) {
1159                 (void) fprintf(stderr, gettext("Usage:\t%s"), cmdname);
1160                 (void) fprintf(stderr,
1161                     gettext(" [-c|-l|-q] [-r|-R] [-bhinsvx] "
1162                     "pattern_list [file ...]\n"));
1163 
1164                 (void) fprintf(stderr, "\t%s", cmdname);
1165                 (void) fprintf(stderr,
1166                     gettext(" [-c|-l|-q] [-r|-R] [-bhinsvx] "
1167                     "[-e pattern_list]... "
1168                     "[-f pattern_file]... [file...]\n"));
1169         } else {
1170                 (void) fprintf(stderr, gettext("Usage:\t%s"), cmdname);
1171                 (void) fprintf(stderr,
1172                     gettext(" [-c|-l|-q] [-r|-R] [-bhinsvwx] "
1173                     "pattern_list [file ...]\n"));
1174 
1175                 (void) fprintf(stderr, "\t%s", cmdname);
1176                 (void) fprintf(stderr,
1177                     gettext(" [-c|-l|-q] [-r|-R] [-bhinsvwx] "
1178                     "[-e pattern_list]... "
1179                     "[-f pattern_file]... [file...]\n"));
1180 
1181                 (void) fprintf(stderr, "\t%s", cmdname);
1182                 (void) fprintf(stderr,
1183                     gettext(" -E [-c|-l|-q] [-r|-R] [-bhinsvx] "
1184                     "pattern_list [file ...]\n"));
1185 
1186                 (void) fprintf(stderr, "\t%s", cmdname);
1187                 (void) fprintf(stderr,
1188                     gettext(" -E [-c|-l|-q] [-r|-R] [-bhinsvx] "
1189                     "[-e pattern_list]... "
1190                     "[-f pattern_file]... [file...]\n"));
1191 
1192                 (void) fprintf(stderr, "\t%s", cmdname);
1193                 (void) fprintf(stderr,
1194                     gettext(" -F [-c|-l|-q] [-r|-R] [-bhinsvx] "
1195                     "pattern_list [file ...]\n"));
1196 
1197                 (void) fprintf(stderr, "\t%s", cmdname);
1198                 (void) fprintf(stderr,
1199                     gettext(" -F [-c|-l|-q] [-bhinsvx] [-e pattern_list]... "
1200                     "[-f pattern_file]... [file...]\n"));
1201         }
1202         exit(2);
1203         /* NOTREACHED */
1204 }
1205 
1206 /*
1207  * Compile literal pattern into BMG tables
1208  */
1209 static void
1210 bmgcomp(char *pat, int len)
1211 {
1212         int     i;
1213         int     tlen;
1214         unsigned char   *uc = (unsigned char *)pat;
1215 
1216         bmglen = len;
1217         bmgpat = pat;
1218 
1219         for (i = 0; i < M_CSETSIZE; i++) {




  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * grep - pattern matching program - combined grep, egrep, and fgrep.
  29  *      Based on MKS grep command, with XCU & Solaris mods.
  30  */
  31 
  32 /*
  33  * Copyright 1985, 1992 by Mortice Kern Systems Inc.  All rights reserved.
  34  *
  35  */
  36 
  37 /* Copyright 2012 Nexenta Systems, Inc.  All rights reserved. */
  38 
  39 /*
  40  * Copyright 2013 Damian Bogel. All rights reserved.
  41  */
  42 
  43 #include <string.h>
  44 #include <stdlib.h>
  45 #include <ctype.h>
  46 #include <stdarg.h>
  47 #include <regex.h>
  48 #include <limits.h>
  49 #include <sys/types.h>
  50 #include <sys/stat.h>
  51 #include <fcntl.h>
  52 #include <stdio.h>
  53 #include <locale.h>
  54 #include <wchar.h>
  55 #include <errno.h>
  56 #include <unistd.h>
  57 #include <wctype.h>
  58 #include <ftw.h>
  59 #include <sys/param.h>
  60 
  61 #define STDIN_FILENAME gettext("(standard input)")
  62 
  63 #define BSIZE           512             /* Size of block for -b */
  64 #define BUFSIZE         8192            /* Input buffer size */
  65 #define MAX_DEPTH       1000            /* how deep to recurse */
  66 
  67 #define M_CSETSIZE      256             /* singlebyte chars */
  68 static int      bmglen;                 /* length of BMG pattern */
  69 static char     *bmgpat;                /* BMG pattern */
  70 static int      bmgtab[M_CSETSIZE];     /* BMG delta1 table */
  71 
  72 typedef struct  _PATTERN        {
  73         char    *pattern;               /* original pattern */
  74         wchar_t *wpattern;              /* wide, lowercased pattern */
  75         struct  _PATTERN        *next;
  76         regex_t re;                     /* compiled pattern */
  77 } PATTERN;
  78 
  79 static PATTERN  *patterns;
  80 static char     errstr[128];            /* regerror string buffer */
  81 static int      regflags = 0;           /* regcomp options */
  82 static int      matched = 0;            /* return of the grep() */
  83 static int      errors = 0;             /* count of errors */
  84 static uchar_t  fgrep = 0;              /* Invoked as fgrep */
  85 static uchar_t  egrep = 0;              /* Invoked as egrep */
  86 static uchar_t  nvflag = 1;             /* Print matching lines */
  87 static uchar_t  cflag;                  /* Count of matches */
  88 static uchar_t  iflag;                  /* Case insensitve matching */
  89 static uchar_t  Hflag;                  /* Precede lines by file name */
  90 static uchar_t  hflag;                  /* Supress printing of filename */
  91 static uchar_t  lflag;                  /* Print file names of matches */
  92 static uchar_t  nflag;                  /* Precede lines by line number */
  93 static uchar_t  rflag;                  /* Search directories recursively */
  94 static uchar_t  bflag;                  /* Preccede matches by block number */
  95 static uchar_t  sflag;                  /* Suppress file error messages */
  96 static uchar_t  qflag;                  /* Suppress standard output */
  97 static uchar_t  wflag;                  /* Search for expression as a word */
  98 static uchar_t  xflag;                  /* Anchoring */
  99 static uchar_t  Eflag;                  /* Egrep or -E flag */
 100 static uchar_t  Fflag;                  /* Fgrep or -F flag */
 101 static uchar_t  Rflag;                  /* Like rflag, but follow symlinks */
 102 static uchar_t  outfn;                  /* Put out file name */
 103 static char     *cmdname;
 104 
 105 static int      use_wchar, use_bmg, mblocale;
 106 
 107 static size_t   outbuflen, prntbuflen;
 108 static char     *prntbuf;
 109 static wchar_t  *outline;


 145         /*
 146          * Skip leading slashes
 147          */
 148         cmdname = argv[0];
 149         if (ap = strrchr(cmdname, '/'))
 150                 cmdname = ap + 1;
 151 
 152         ap = cmdname;
 153         /*
 154          * Detect egrep/fgrep via command name, map to -E and -F options.
 155          */
 156         if (*ap == 'e' || *ap == 'E') {
 157                 regflags |= REG_EXTENDED;
 158                 egrep++;
 159         } else {
 160                 if (*ap == 'f' || *ap == 'F') {
 161                         fgrep++;
 162                 }
 163         }
 164 
 165         while ((c = getopt(argc, argv, "vwchHilnrbse:f:qxEFIR")) != EOF) {
 166                 switch (c) {
 167                 case 'v':       /* POSIX: negate matches */
 168                         nvflag = 0;
 169                         break;
 170 
 171                 case 'c':       /* POSIX: write count */
 172                         cflag++;
 173                         break;
 174 
 175                 case 'i':       /* POSIX: ignore case */
 176                         iflag++;
 177                         regflags |= REG_ICASE;
 178                         break;
 179 
 180                 case 'l':       /* POSIX: Write filenames only */
 181                         lflag++;
 182                         break;
 183 
 184                 case 'n':       /* POSIX: Write line numbers */
 185                         nflag++;


 206                                     gettext("%s: out of memory\n"),
 207                                     cmdname);
 208                                 exit(2);
 209                         }
 210                         *(pattern_list + n_pattern - 1) = optarg;
 211                         break;
 212 
 213                 case 'f':       /* POSIX: pattern file */
 214                         fflag = 1;
 215                         n_file++;
 216                         file_list = realloc(file_list,
 217                             sizeof (char *) * n_file);
 218                         if (file_list == NULL) {
 219                                 (void) fprintf(stderr,
 220                                     gettext("%s: out of memory\n"),
 221                                     cmdname);
 222                                 exit(2);
 223                         }
 224                         *(file_list + n_file - 1) = optarg;
 225                         break;
 226 
 227                 /* based on options order h or H is set as in GNU grep */
 228                 case 'h':       /* Solaris: supress printing of file name */
 229                         hflag = 1;
 230                         Hflag = 0;
 231                         break;
 232                 /* Solaris: precede every matching with file name */
 233                 case 'H':
 234                         Hflag = 1;
 235                         hflag = 0;
 236                         break;
 237 
 238                 case 'q':       /* POSIX: quiet: status only */
 239                         qflag++;
 240                         break;
 241 
 242                 case 'w':       /* Solaris: treat pattern as word */
 243                         wflag++;
 244                         break;
 245 
 246                 case 'x':       /* POSIX: full line matches */
 247                         xflag++;
 248                         regflags |= REG_ANCHOR;
 249                         break;
 250 
 251                 case 'E':       /* POSIX: Extended RE's */
 252                         regflags |= REG_EXTENDED;
 253                         Eflag++;
 254                         break;
 255 


 292                 if (egrep)
 293                         Eflag++;
 294                 else                    /* Else fgrep */
 295                         Fflag++;
 296         }
 297 
 298         if (wflag && (Eflag || Fflag)) {
 299                 /*
 300                  * -w cannot be specified with grep -F
 301                  */
 302                 usage();
 303         }
 304 
 305         /*
 306          * -E and -F flags are mutually exclusive - check for this
 307          */
 308         if (Eflag && Fflag)
 309                 usage();
 310 
 311         /*
 312          * -l overrides -H like in GNU grep
 313          */
 314         if (lflag)
 315                 Hflag = 0;
 316 
 317         /*
 318          * -c, -l and -q flags are mutually exclusive
 319          * We have -c override -l like in Solaris.
 320          * -q overrides -l & -c programmatically in grep() function.
 321          */
 322         if (cflag && lflag)
 323                 lflag = 0;
 324 
 325         argv += optind - 1;
 326         argc -= optind - 1;
 327 
 328         /*
 329          * Now handling -e and -f option
 330          */
 331         if (pattern_list) {
 332                 for (i = 0; i < n_pattern; i++) {
 333                         addpattern(pattern_list[i]);
 334                 }
 335                 free(pattern_list);
 336         }
 337         if (file_list) {


 350                 addpattern(argv[1]);
 351                 argc--;
 352                 argv++;
 353         }
 354 
 355         /*
 356          * If -x flag is not specified or -i flag is specified
 357          * with fgrep in a multibyte locale, need to use
 358          * the wide character APIs.  Otherwise, byte-oriented
 359          * process will be done.
 360          */
 361         use_wchar = Fflag && mblocale && (!xflag || iflag);
 362 
 363         /*
 364          * Compile Patterns and also decide if BMG can be used
 365          */
 366         fixpatterns();
 367 
 368         /* Process all files: stdin, or rest of arg list */
 369         if (argc < 2) {
 370                 matched = grep(0, STDIN_FILENAME);
 371         } else {
 372                 if (Hflag || (argc > 2 && hflag == 0))
 373                         outfn = 1;      /* Print filename on match line */
 374                 for (argv++; *argv != NULL; argv++) {
 375                         process_path(*argv);
 376                 }
 377         }
 378         /*
 379          * Return() here is used instead of exit
 380          */
 381 
 382         (void) fflush(stdout);
 383 
 384         if (errors)
 385                 return (2);
 386         return (matched ? 0 : 1);
 387 }
 388 
 389 static void
 390 process_path(const char *path)
 391 {
 392         struct  stat st;


1116                         matches++;
1117                         /*
1118                          * Handle q, l, and c flags.
1119                          */
1120                         if (qflag) {
1121                                 /* no need to continue */
1122                                 /*
1123                                  * End of this line is ptrend.
1124                                  * We have read up to ptr + data_len.
1125                                  */
1126                                 off_t   pos;
1127                                 pos = ptr + data_len - (ptrend + 1);
1128                                 (void) lseek(fd, -pos, SEEK_CUR);
1129                                 exit(0);
1130                         }
1131                         if (lflag) {
1132                                 (void) printf("%s\n", fn);
1133                                 break;
1134                         }
1135                         if (!cflag) {
1136                                 if (Hflag || outfn) {
1137                                         (void) printf("%s:", fn);
1138                                 }
1139                                 if (bflag) {
1140                                         (void) printf("%lld:", (offset_t)
1141                                             (line_offset / BSIZE));
1142                                 }
1143                                 if (nflag) {
1144                                         (void) printf("%lld:", lineno);
1145                                 }
1146                                 *ptrend = '\n';
1147                                 (void) fwrite(ptr, 1, line_len + 1, stdout);
1148                         }
1149                         if (ferror(stdout)) {
1150                                 return (0);
1151                         }
1152                 }
1153 L_skip_line:
1154                 if (!newlinep)
1155                         break;
1156 
1157                 data_len -= line_len + 1;
1158                 line_offset += line_len + 1;
1159                 ptr = ptrend + 1;
1160         }
1161 
1162         if (cflag) {
1163                 if (Hflag || outfn) {
1164                         (void) printf("%s:", fn);
1165                 }
1166                 if (!qflag) {
1167                         (void) printf("%lld\n", matches);
1168                 }
1169         }
1170         return (matches != 0);
1171 }
1172 
1173 /*
1174  * usage message for grep
1175  */
1176 static void
1177 usage(void)
1178 {
1179         if (egrep || fgrep) {
1180                 (void) fprintf(stderr, gettext("Usage:\t%s"), cmdname);
1181                 (void) fprintf(stderr,
1182                     gettext(" [-c|-l|-q] [-r|-R] [-bhHinsvx] "
1183                     "pattern_list [file ...]\n"));
1184 
1185                 (void) fprintf(stderr, "\t%s", cmdname);
1186                 (void) fprintf(stderr,
1187                     gettext(" [-c|-l|-q] [-r|-R] [-bhHinsvx] "
1188                     "[-e pattern_list]... "
1189                     "[-f pattern_file]... [file...]\n"));
1190         } else {
1191                 (void) fprintf(stderr, gettext("Usage:\t%s"), cmdname);
1192                 (void) fprintf(stderr,
1193                     gettext(" [-c|-l|-q] [-r|-R] [-bhHinsvwx] "
1194                     "pattern_list [file ...]\n"));
1195 
1196                 (void) fprintf(stderr, "\t%s", cmdname);
1197                 (void) fprintf(stderr,
1198                     gettext(" [-c|-l|-q] [-r|-R] [-bhHinsvwx] "
1199                     "[-e pattern_list]... "
1200                     "[-f pattern_file]... [file...]\n"));
1201 
1202                 (void) fprintf(stderr, "\t%s", cmdname);
1203                 (void) fprintf(stderr,
1204                     gettext(" -E [-c|-l|-q] [-r|-R] [-bhHinsvx] "
1205                     "pattern_list [file ...]\n"));
1206 
1207                 (void) fprintf(stderr, "\t%s", cmdname);
1208                 (void) fprintf(stderr,
1209                     gettext(" -E [-c|-l|-q] [-r|-R] [-bhHinsvx] "
1210                     "[-e pattern_list]... "
1211                     "[-f pattern_file]... [file...]\n"));
1212 
1213                 (void) fprintf(stderr, "\t%s", cmdname);
1214                 (void) fprintf(stderr,
1215                     gettext(" -F [-c|-l|-q] [-r|-R] [-bhHinsvx] "
1216                     "pattern_list [file ...]\n"));
1217 
1218                 (void) fprintf(stderr, "\t%s", cmdname);
1219                 (void) fprintf(stderr,
1220                     gettext(" -F [-c|-l|-q] [-bhHinsvx] [-e pattern_list]... "
1221                     "[-f pattern_file]... [file...]\n"));
1222         }
1223         exit(2);
1224         /* NOTREACHED */
1225 }
1226 
1227 /*
1228  * Compile literal pattern into BMG tables
1229  */
1230 static void
1231 bmgcomp(char *pat, int len)
1232 {
1233         int     i;
1234         int     tlen;
1235         unsigned char   *uc = (unsigned char *)pat;
1236 
1237         bmglen = len;
1238         bmgpat = pat;
1239 
1240         for (i = 0; i < M_CSETSIZE; i++) {