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

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revision 564 by ph10, Sun Oct 31 16:07:24 2010 UTC revision 565 by ph10, Sun Oct 31 18:18:48 2010 UTC
# Line 163  static int dee_action = dee_READ; Line 163  static int dee_action = dee_READ;
163  static int DEE_action = DEE_READ;  static int DEE_action = DEE_READ;
164  static int error_count = 0;  static int error_count = 0;
165  static int filenames = FN_DEFAULT;  static int filenames = FN_DEFAULT;
166    static int only_matching = -1;
167  static int process_options = 0;  static int process_options = 0;
168    
169  static unsigned long int match_limit = 0;  static unsigned long int match_limit = 0;
# Line 178  static BOOL line_offsets = FALSE; Line 179  static BOOL line_offsets = FALSE;
179  static BOOL multiline = FALSE;  static BOOL multiline = FALSE;
180  static BOOL number = FALSE;  static BOOL number = FALSE;
181  static BOOL omit_zero_count = FALSE;  static BOOL omit_zero_count = FALSE;
 static BOOL only_matching = FALSE;  
182  static BOOL resource_error = FALSE;  static BOOL resource_error = FALSE;
183  static BOOL quiet = FALSE;  static BOOL quiet = FALSE;
184  static BOOL silent = FALSE;  static BOOL silent = FALSE;
# Line 244  static option_item optionlist[] = { Line 244  static option_item optionlist[] = {
244    { OP_NODATA,    'M',      NULL,              "multiline",     "run in multiline mode" },    { OP_NODATA,    'M',      NULL,              "multiline",     "run in multiline mode" },
245    { OP_STRING,    'N',      &newline,          "newline=type",  "set newline type (CR, LF, CRLF, ANYCRLF or ANY)" },    { OP_STRING,    'N',      &newline,          "newline=type",  "set newline type (CR, LF, CRLF, ANYCRLF or ANY)" },
246    { OP_NODATA,    'n',      NULL,              "line-number",   "print line number with output lines" },    { OP_NODATA,    'n',      NULL,              "line-number",   "print line number with output lines" },
247    { OP_NODATA,    'o',      NULL,              "only-matching", "show only the part of the line that matched" },    { OP_OP_NUMBER, 'o',      &only_matching,    "only-matching=n", "show only the part of the line that matched" },
248    { OP_NODATA,    'q',      NULL,              "quiet",         "suppress output, just set return code" },    { OP_NODATA,    'q',      NULL,              "quiet",         "suppress output, just set return code" },
249    { OP_NODATA,    'r',      NULL,              "recursive",     "recursively scan sub-directories" },    { OP_NODATA,    'r',      NULL,              "recursive",     "recursively scan sub-directories" },
250    { OP_STRING,    N_EXCLUDE,&exclude_pattern,  "exclude=pattern","exclude matching files when recursing" },    { OP_STRING,    N_EXCLUDE,&exclude_pattern,  "exclude=pattern","exclude matching files when recursing" },
# Line 1174  while (ptr < endptr) Line 1174  while (ptr < endptr)
1174    
1175      else if (quiet) return 0;      else if (quiet) return 0;
1176    
1177      /* The --only-matching option prints just the substring that matched, and      /* The --only-matching option prints just the substring that matched, or a
1178      the --file-offsets and --line-offsets options output offsets for the      captured portion of it, as long as this string is not empty, and the
1179      matching substring (they both force --only-matching). None of these options      --file-offsets and --line-offsets options output offsets for the matching
1180        substring (they both force --only-matching = 0). None of these options
1181      prints any context. Afterwards, adjust the start and length, and then jump      prints any context. Afterwards, adjust the start and length, and then jump
1182      back to look for further matches in the same line. If we are in invert      back to look for further matches in the same line. If we are in invert
1183      mode, however, nothing is printed - this could be still useful because the      mode, however, nothing is printed and we do not restart - this could still
1184      return code is set. */      be useful because the return code is set. */
1185    
1186      else if (only_matching)      else if (only_matching >= 0)
1187        {        {
1188        if (!invert)        if (!invert)
1189          {          {
1190          if (printname != NULL) fprintf(stdout, "%s:", printname);          if (printname != NULL) fprintf(stdout, "%s:", printname);
1191          if (number) fprintf(stdout, "%d:", linenumber);          if (number) fprintf(stdout, "%d:", linenumber);
1192          if (line_offsets)          if (line_offsets)
1193            fprintf(stdout, "%d,%d", (int)(matchptr + offsets[0] - ptr),            fprintf(stdout, "%d,%d\n", (int)(matchptr + offsets[0] - ptr),
1194              offsets[1] - offsets[0]);              offsets[1] - offsets[0]);
1195          else if (file_offsets)          else if (file_offsets)
1196            fprintf(stdout, "%d,%d", (int)(filepos + matchptr + offsets[0] - ptr),            fprintf(stdout, "%d,%d\n",
1197                (int)(filepos + matchptr + offsets[0] - ptr),
1198              offsets[1] - offsets[0]);              offsets[1] - offsets[0]);
1199          else          else if (only_matching < mrc)
1200            {            {
1201            if (do_colour) fprintf(stdout, "%c[%sm", 0x1b, colour_string);            int plen = offsets[2*only_matching + 1] - offsets[2*only_matching];
1202            FWRITE(matchptr + offsets[0], 1, offsets[1] - offsets[0], stdout);            if (plen > 0)
1203            if (do_colour) fprintf(stdout, "%c[00m", 0x1b);              {
1204                if (do_colour) fprintf(stdout, "%c[%sm", 0x1b, colour_string);
1205                FWRITE(matchptr + offsets[only_matching*2], 1, plen, stdout);
1206                if (do_colour) fprintf(stdout, "%c[00m", 0x1b);
1207                fprintf(stdout, "\n");
1208                }
1209            }            }
1210          fprintf(stdout, "\n");          else if (printname != NULL || number) fprintf(stdout, "\n");
1211          matchptr += offsets[1];          matchptr += offsets[1];
1212          length -= offsets[1];          length -= offsets[1];
1213          match = FALSE;          match = FALSE;
# Line 1465  while (ptr < endptr) Line 1472  while (ptr < endptr)
1472  /* 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
1473  hyphenpending if it prints something. */  hyphenpending if it prints something. */
1474    
1475  if (!only_matching && !count_only)  if (only_matching < 0 && !count_only)
1476    {    {
1477    do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);    do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname);
1478    hyphenpending |= endhyphenpending;    hyphenpending |= endhyphenpending;
# Line 1814  switch(letter) Line 1821  switch(letter)
1821    case 'L': filenames = FN_NOMATCH_ONLY; break;    case 'L': filenames = FN_NOMATCH_ONLY; break;
1822    case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break;    case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break;
1823    case 'n': number = TRUE; break;    case 'n': number = TRUE; break;
1824    case 'o': only_matching = TRUE; break;    case 'o': only_matching = 0; break;
1825    case 'q': quiet = TRUE; break;    case 'q': quiet = TRUE; break;
1826    case 'r': dee_action = dee_RECURSE; break;    case 'r': dee_action = dee_RECURSE; break;
1827    case 's': silent = TRUE; break;    case 's': silent = TRUE; break;
# Line 2154  for (i = 1; i < argc; i++) Line 2161  for (i = 1; i < argc; i++)
2161      while (*s != 0)      while (*s != 0)
2162        {        {
2163        for (op = optionlist; op->one_char != 0; op++)        for (op = optionlist; op->one_char != 0; op++)
2164          { if (*s == op->one_char) break; }          {
2165            if (*s == op->one_char) break;
2166            }
2167        if (op->one_char == 0)        if (op->one_char == 0)
2168          {          {
2169          fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n",          fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n",
2170            *s, argv[i]);            *s, argv[i]);
2171          pcregrep_exit(usage(2));          pcregrep_exit(usage(2));
2172          }          }
2173        if (op->type != OP_NODATA || s[1] == 0)  
2174          {        /* Check for a single-character option that has data: OP_OP_NUMBER
2175          option_data = s+1;        is used for one that either has a numerical number or defaults, i.e. the
2176          break;        data is optional. If a digit follows, there is data; if not, carry on
2177          with other single-character options in the same string. */
2178    
2179          option_data = s+1;
2180          if (op->type == OP_OP_NUMBER)
2181            {
2182            if (isdigit((unsigned char)s[1])) break;
2183          }          }
2184          else   /* Check for end or a dataless option */
2185            {
2186            if (op->type != OP_NODATA || s[1] == 0) break;
2187            }
2188    
2189          /* Handle a single-character option with no data, then loop for the
2190          next character in the string. */
2191    
2192        pcre_options = handle_option(*s++, pcre_options);        pcre_options = handle_option(*s++, pcre_options);
2193        }        }
2194      }      }
# Line 2182  for (i = 1; i < argc; i++) Line 2205  for (i = 1; i < argc; i++)
2205    
2206    /* If the option type is OP_OP_STRING or OP_OP_NUMBER, it's an option that    /* If the option type is OP_OP_STRING or OP_OP_NUMBER, it's an option that
2207    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
2208    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",
2209    Jeffrey Friedl's special -S debugging option. */    "only-matching", and Jeffrey Friedl's special -S debugging option. */
2210    
2211    if (*option_data == 0 &&    if (*option_data == 0 &&
2212        (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER))        (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER))
# Line 2193  for (i = 1; i < argc; i++) Line 2216  for (i = 1; i < argc; i++)
2216        case N_COLOUR:        case N_COLOUR:
2217        colour_option = (char *)"auto";        colour_option = (char *)"auto";
2218        break;        break;
2219    
2220          case 'o':
2221          only_matching = 0;
2222          break;
2223    
2224  #ifdef JFRIEDL_DEBUG  #ifdef JFRIEDL_DEBUG
2225        case 'S':        case 'S':
2226        S_arg = 0;        S_arg = 0;
# Line 2274  if (both_context > 0) Line 2302  if (both_context > 0)
2302    }    }
2303    
2304  /* Only one of --only-matching, --file-offsets, or --line-offsets is permitted.  /* Only one of --only-matching, --file-offsets, or --line-offsets is permitted.
2305  However, the latter two set the only_matching flag. */  However, the latter two set only_matching. */
2306    
2307  if ((only_matching && (file_offsets || line_offsets)) ||  if ((only_matching >= 0 && (file_offsets || line_offsets)) ||
2308      (file_offsets && line_offsets))      (file_offsets && line_offsets))
2309    {    {
2310    fprintf(stderr, "pcregrep: Cannot mix --only-matching, --file-offsets "    fprintf(stderr, "pcregrep: Cannot mix --only-matching, --file-offsets "
# Line 2284  if ((only_matching && (file_offsets || l Line 2312  if ((only_matching && (file_offsets || l
2312    pcregrep_exit(usage(2));    pcregrep_exit(usage(2));
2313    }    }
2314    
2315  if (file_offsets || line_offsets) only_matching = TRUE;  if (file_offsets || line_offsets) only_matching = 0;
2316    
2317  /* 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
2318  LC_ALL environment variable is set, and if so, use it. */  LC_ALL environment variable is set, and if so, use it. */
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