| 1 |
/*************************************************
|
| 2 |
* pcregrep program *
|
| 3 |
*************************************************/
|
| 4 |
|
| 5 |
/* This is a grep program that uses the PCRE regular expression library to do
|
| 6 |
its pattern matching. On a Unix or Win32 system it can recurse into
|
| 7 |
directories.
|
| 8 |
|
| 9 |
Copyright (c) 1997-2004 University of Cambridge
|
| 10 |
|
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-----------------------------------------------------------------------------
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Redistribution and use in source and binary forms, with or without
|
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modification, are permitted provided that the following conditions are met:
|
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|
| 15 |
* Redistributions of source code must retain the above copyright notice,
|
| 16 |
this list of conditions and the following disclaimer.
|
| 17 |
|
| 18 |
* Redistributions in binary form must reproduce the above copyright
|
| 19 |
notice, this list of conditions and the following disclaimer in the
|
| 20 |
documentation and/or other materials provided with the distribution.
|
| 21 |
|
| 22 |
* Neither the name of the University of Cambridge nor the names of its
|
| 23 |
contributors may be used to endorse or promote products derived from
|
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this software without specific prior written permission.
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|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 28 |
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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POSSIBILITY OF SUCH DAMAGE.
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-----------------------------------------------------------------------------
|
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*/
|
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|
| 40 |
#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
|
| 44 |
#include <errno.h>
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#include "config.h"
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#include "pcre.h"
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#define FALSE 0
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#define TRUE 1
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|
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typedef int BOOL;
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#define VERSION "3.0 14-Jan-2003"
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#define MAX_PATTERN_COUNT 100
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/*************************************************
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* Global variables *
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*************************************************/
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| 61 |
static char *pattern_filename = NULL;
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static int pattern_count = 0;
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| 63 |
static pcre **pattern_list;
|
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static pcre_extra **hints_list;
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static BOOL count_only = FALSE;
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static BOOL filenames = TRUE;
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static BOOL filenames_only = FALSE;
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static BOOL invert = FALSE;
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static BOOL number = FALSE;
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static BOOL recurse = FALSE;
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static BOOL silent = FALSE;
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static BOOL whole_lines = FALSE;
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/* Structure for options and list of them */
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typedef struct option_item {
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int one_char;
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const char *long_name;
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const char *help_text;
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} option_item;
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|
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static option_item optionlist[] = {
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{ -1, "help", "display this help and exit" },
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{ 'c', "count", "print only a count of matching lines per FILE" },
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{ 'h', "no-filename", "suppress the prefixing filename on output" },
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{ 'i', "ignore-case", "ignore case distinctions" },
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{ 'l', "files-with-matches", "print only FILE names containing matches" },
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{ 'n', "line-number", "print line number with output lines" },
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{ 'r', "recursive", "recursively scan sub-directories" },
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{ 's', "no-messages", "suppress error messages" },
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{ 'u', "utf-8", "use UTF-8 mode" },
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{ 'V', "version", "print version information and exit" },
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{ 'v', "invert-match", "select non-matching lines" },
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{ 'x', "line-regex", "force PATTERN to match only whole lines" },
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{ 'x', "line-regexp", "force PATTERN to match only whole lines" },
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{ 0, NULL, NULL }
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};
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/*************************************************
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* Functions for directory scanning *
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*************************************************/
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/* These functions are defined so that they can be made system specific,
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although at present the only ones are for Unix, Win32, and for "no directory
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recursion support". */
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/************* Directory scanning in Unix ***********/
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#if IS_UNIX
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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typedef DIR directory_type;
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static int
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isdirectory(char *filename)
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{
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struct stat statbuf;
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if (stat(filename, &statbuf) < 0)
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return 0; /* In the expectation that opening as a file will fail */
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return ((statbuf.st_mode & S_IFMT) == S_IFDIR)? '/' : 0;
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}
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static directory_type *
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opendirectory(char *filename)
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{
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return opendir(filename);
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}
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static char *
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readdirectory(directory_type *dir)
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{
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for (;;)
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{
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struct dirent *dent = readdir(dir);
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if (dent == NULL) return NULL;
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if (strcmp(dent->d_name, ".") != 0 && strcmp(dent->d_name, "..") != 0)
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return dent->d_name;
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}
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return NULL; /* Keep compiler happy; never executed */
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}
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static void
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closedirectory(directory_type *dir)
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{
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closedir(dir);
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}
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/************* Directory scanning in Win32 ***********/
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/* I (Philip Hazel) have no means of testing this code. It was contributed by
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Lionel Fourquaux. */
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#elif HAVE_WIN32API
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#ifndef STRICT
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# define STRICT
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#endif
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#ifndef WIN32_LEAN_AND_MEAN
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# define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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typedef struct directory_type
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{
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HANDLE handle;
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BOOL first;
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WIN32_FIND_DATA data;
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} directory_type;
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int
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isdirectory(char *filename)
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{
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DWORD attr = GetFileAttributes(filename);
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if (attr == INVALID_FILE_ATTRIBUTES)
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return 0;
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return ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) ? '/' : 0;
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}
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directory_type *
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opendirectory(char *filename)
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{
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size_t len;
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char *pattern;
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directory_type *dir;
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DWORD err;
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len = strlen(filename);
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pattern = (char *) malloc(len + 3);
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dir = (directory_type *) malloc(sizeof(*dir));
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if ((pattern == NULL) || (dir == NULL))
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{
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fprintf(stderr, "pcregrep: malloc failed\n");
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exit(2);
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}
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memcpy(pattern, filename, len);
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memcpy(&(pattern[len]), "\\*", 3);
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dir->handle = FindFirstFile(pattern, &(dir->data));
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if (dir->handle != INVALID_HANDLE_VALUE)
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{
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free(pattern);
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dir->first = TRUE;
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return dir;
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}
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err = GetLastError();
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free(pattern);
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free(dir);
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errno = (err == ERROR_ACCESS_DENIED) ? EACCES : ENOENT;
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return NULL;
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}
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char *
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readdirectory(directory_type *dir)
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{
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for (;;)
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{
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if (!dir->first)
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{
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if (!FindNextFile(dir->handle, &(dir->data)))
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return NULL;
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}
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else
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{
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dir->first = FALSE;
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}
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if (strcmp(dir->data.cFileName, ".") != 0 && strcmp(dir->data.cFileName, "..") != 0)
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return dir->data.cFileName;
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}
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#ifndef _MSC_VER
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return NULL; /* Keep compiler happy; never executed */
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#endif
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}
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| 238 |
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void
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closedirectory(directory_type *dir)
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{
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FindClose(dir->handle);
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free(dir);
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}
|
| 245 |
|
| 246 |
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/************* Directory scanning when we can't do it ***********/
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| 248 |
|
| 249 |
/* The type is void, and apart from isdirectory(), the functions do nothing. */
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| 250 |
|
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#else
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| 252 |
|
| 253 |
typedef void directory_type;
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| 254 |
|
| 255 |
int isdirectory(char *filename) { return FALSE; }
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| 256 |
directory_type * opendirectory(char *filename) {}
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| 257 |
char *readdirectory(directory_type *dir) {}
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void closedirectory(directory_type *dir) {}
|
| 259 |
|
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#endif
|
| 261 |
|
| 262 |
|
| 263 |
|
| 264 |
#if ! HAVE_STRERROR
|
| 265 |
/*************************************************
|
| 266 |
* Provide strerror() for non-ANSI libraries *
|
| 267 |
*************************************************/
|
| 268 |
|
| 269 |
/* Some old-fashioned systems still around (e.g. SunOS4) don't have strerror()
|
| 270 |
in their libraries, but can provide the same facility by this simple
|
| 271 |
alternative function. */
|
| 272 |
|
| 273 |
extern int sys_nerr;
|
| 274 |
extern char *sys_errlist[];
|
| 275 |
|
| 276 |
char *
|
| 277 |
strerror(int n)
|
| 278 |
{
|
| 279 |
if (n < 0 || n >= sys_nerr) return "unknown error number";
|
| 280 |
return sys_errlist[n];
|
| 281 |
}
|
| 282 |
#endif /* HAVE_STRERROR */
|
| 283 |
|
| 284 |
|
| 285 |
|
| 286 |
/*************************************************
|
| 287 |
* Grep an individual file *
|
| 288 |
*************************************************/
|
| 289 |
|
| 290 |
static int
|
| 291 |
pcregrep(FILE *in, char *name)
|
| 292 |
{
|
| 293 |
int rc = 1;
|
| 294 |
int linenumber = 0;
|
| 295 |
int count = 0;
|
| 296 |
int offsets[99];
|
| 297 |
char buffer[BUFSIZ];
|
| 298 |
|
| 299 |
while (fgets(buffer, sizeof(buffer), in) != NULL)
|
| 300 |
{
|
| 301 |
BOOL match = FALSE;
|
| 302 |
int i;
|
| 303 |
int length = (int)strlen(buffer);
|
| 304 |
if (length > 0 && buffer[length-1] == '\n') buffer[--length] = 0;
|
| 305 |
linenumber++;
|
| 306 |
|
| 307 |
for (i = 0; !match && i < pattern_count; i++)
|
| 308 |
{
|
| 309 |
match = pcre_exec(pattern_list[i], hints_list[i], buffer, length, 0, 0,
|
| 310 |
offsets, 99) >= 0;
|
| 311 |
if (match && whole_lines && offsets[1] != length) match = FALSE;
|
| 312 |
}
|
| 313 |
|
| 314 |
if (match != invert)
|
| 315 |
{
|
| 316 |
if (count_only) count++;
|
| 317 |
|
| 318 |
else if (filenames_only)
|
| 319 |
{
|
| 320 |
fprintf(stdout, "%s\n", (name == NULL)? "<stdin>" : name);
|
| 321 |
return 0;
|
| 322 |
}
|
| 323 |
|
| 324 |
else if (silent) return 0;
|
| 325 |
|
| 326 |
else
|
| 327 |
{
|
| 328 |
if (name != NULL) fprintf(stdout, "%s:", name);
|
| 329 |
if (number) fprintf(stdout, "%d:", linenumber);
|
| 330 |
fprintf(stdout, "%s\n", buffer);
|
| 331 |
}
|
| 332 |
|
| 333 |
rc = 0;
|
| 334 |
}
|
| 335 |
}
|
| 336 |
|
| 337 |
if (count_only)
|
| 338 |
{
|
| 339 |
if (name != NULL) fprintf(stdout, "%s:", name);
|
| 340 |
fprintf(stdout, "%d\n", count);
|
| 341 |
}
|
| 342 |
|
| 343 |
return rc;
|
| 344 |
}
|
| 345 |
|
| 346 |
|
| 347 |
|
| 348 |
|
| 349 |
/*************************************************
|
| 350 |
* Grep a file or recurse into a directory *
|
| 351 |
*************************************************/
|
| 352 |
|
| 353 |
static int
|
| 354 |
grep_or_recurse(char *filename, BOOL dir_recurse, BOOL show_filenames,
|
| 355 |
BOOL only_one_at_top)
|
| 356 |
{
|
| 357 |
int rc = 1;
|
| 358 |
int sep;
|
| 359 |
FILE *in;
|
| 360 |
|
| 361 |
/* If the file is a directory and we are recursing, scan each file within it.
|
| 362 |
The scanning code is localized so it can be made system-specific. */
|
| 363 |
|
| 364 |
if ((sep = isdirectory(filename)) != 0 && dir_recurse)
|
| 365 |
{
|
| 366 |
char buffer[1024];
|
| 367 |
char *nextfile;
|
| 368 |
directory_type *dir = opendirectory(filename);
|
| 369 |
|
| 370 |
if (dir == NULL)
|
| 371 |
{
|
| 372 |
fprintf(stderr, "pcregrep: Failed to open directory %s: %s\n", filename,
|
| 373 |
strerror(errno));
|
| 374 |
return 2;
|
| 375 |
}
|
| 376 |
|
| 377 |
while ((nextfile = readdirectory(dir)) != NULL)
|
| 378 |
{
|
| 379 |
int frc;
|
| 380 |
sprintf(buffer, "%.512s%c%.128s", filename, sep, nextfile);
|
| 381 |
frc = grep_or_recurse(buffer, dir_recurse, TRUE, FALSE);
|
| 382 |
if (frc == 0 && rc == 1) rc = 0;
|
| 383 |
}
|
| 384 |
|
| 385 |
closedirectory(dir);
|
| 386 |
return rc;
|
| 387 |
}
|
| 388 |
|
| 389 |
/* If the file is not a directory, or we are not recursing, scan it. If this is
|
| 390 |
the first and only argument at top level, we don't show the file name (unless
|
| 391 |
we are only showing the file name). Otherwise, control is via the
|
| 392 |
show_filenames variable. */
|
| 393 |
|
| 394 |
in = fopen(filename, "r");
|
| 395 |
if (in == NULL)
|
| 396 |
{
|
| 397 |
fprintf(stderr, "pcregrep: Failed to open %s: %s\n", filename, strerror(errno));
|
| 398 |
return 2;
|
| 399 |
}
|
| 400 |
|
| 401 |
rc = pcregrep(in, (filenames_only || (show_filenames && !only_one_at_top))?
|
| 402 |
filename : NULL);
|
| 403 |
fclose(in);
|
| 404 |
return rc;
|
| 405 |
}
|
| 406 |
|
| 407 |
|
| 408 |
|
| 409 |
|
| 410 |
/*************************************************
|
| 411 |
* Usage function *
|
| 412 |
*************************************************/
|
| 413 |
|
| 414 |
static int
|
| 415 |
usage(int rc)
|
| 416 |
{
|
| 417 |
fprintf(stderr, "Usage: pcregrep [-Vcfhilnrsvx] [long-options] [pattern] [file1 file2 ...]\n");
|
| 418 |
fprintf(stderr, "Type `pcregrep --help' for more information.\n");
|
| 419 |
return rc;
|
| 420 |
}
|
| 421 |
|
| 422 |
|
| 423 |
|
| 424 |
|
| 425 |
/*************************************************
|
| 426 |
* Help function *
|
| 427 |
*************************************************/
|
| 428 |
|
| 429 |
static void
|
| 430 |
help(void)
|
| 431 |
{
|
| 432 |
option_item *op;
|
| 433 |
|
| 434 |
printf("Usage: pcregrep [OPTION]... [PATTERN] [FILE1 FILE2 ...]\n");
|
| 435 |
printf("Search for PATTERN in each FILE or standard input.\n");
|
| 436 |
printf("PATTERN must be present if -f is not used.\n");
|
| 437 |
printf("Example: pcregrep -i 'hello.*world' menu.h main.c\n\n");
|
| 438 |
|
| 439 |
printf("Options:\n");
|
| 440 |
|
| 441 |
for (op = optionlist; op->one_char != 0; op++)
|
| 442 |
{
|
| 443 |
int n;
|
| 444 |
char s[4];
|
| 445 |
if (op->one_char > 0) sprintf(s, "-%c,", op->one_char); else strcpy(s, " ");
|
| 446 |
printf(" %s --%s%n", s, op->long_name, &n);
|
| 447 |
n = 30 - n;
|
| 448 |
if (n < 1) n = 1;
|
| 449 |
printf("%.*s%s\n", n, " ", op->help_text);
|
| 450 |
}
|
| 451 |
|
| 452 |
printf("\n -f<filename> or --file=<filename>\n");
|
| 453 |
printf(" Read patterns from <filename> instead of using a command line option.\n");
|
| 454 |
printf(" Trailing white space is removed; blanks lines are ignored.\n");
|
| 455 |
printf(" There is a maximum of %d patterns.\n", MAX_PATTERN_COUNT);
|
| 456 |
|
| 457 |
printf("\nWith no FILE, read standard input. If fewer than two FILEs given, assume -h.\n");
|
| 458 |
printf("Exit status is 0 if any matches, 1 if no matches, and 2 if trouble.\n");
|
| 459 |
}
|
| 460 |
|
| 461 |
|
| 462 |
|
| 463 |
|
| 464 |
/*************************************************
|
| 465 |
* Handle an option *
|
| 466 |
*************************************************/
|
| 467 |
|
| 468 |
static int
|
| 469 |
handle_option(int letter, int options)
|
| 470 |
{
|
| 471 |
switch(letter)
|
| 472 |
{
|
| 473 |
case -1: help(); exit(0);
|
| 474 |
case 'c': count_only = TRUE; break;
|
| 475 |
case 'h': filenames = FALSE; break;
|
| 476 |
case 'i': options |= PCRE_CASELESS; break;
|
| 477 |
case 'l': filenames_only = TRUE;
|
| 478 |
case 'n': number = TRUE; break;
|
| 479 |
case 'r': recurse = TRUE; break;
|
| 480 |
case 's': silent = TRUE; break;
|
| 481 |
case 'u': options |= PCRE_UTF8; break;
|
| 482 |
case 'v': invert = TRUE; break;
|
| 483 |
case 'x': whole_lines = TRUE; options |= PCRE_ANCHORED; break;
|
| 484 |
|
| 485 |
case 'V':
|
| 486 |
fprintf(stderr, "pcregrep version %s using ", VERSION);
|
| 487 |
fprintf(stderr, "PCRE version %s\n", pcre_version());
|
| 488 |
exit(0);
|
| 489 |
break;
|
| 490 |
|
| 491 |
default:
|
| 492 |
fprintf(stderr, "pcregrep: Unknown option -%c\n", letter);
|
| 493 |
exit(usage(2));
|
| 494 |
}
|
| 495 |
|
| 496 |
return options;
|
| 497 |
}
|
| 498 |
|
| 499 |
|
| 500 |
|
| 501 |
|
| 502 |
/*************************************************
|
| 503 |
* Main program *
|
| 504 |
*************************************************/
|
| 505 |
|
| 506 |
int
|
| 507 |
main(int argc, char **argv)
|
| 508 |
{
|
| 509 |
int i, j;
|
| 510 |
int rc = 1;
|
| 511 |
int options = 0;
|
| 512 |
int errptr;
|
| 513 |
const char *error;
|
| 514 |
BOOL only_one_at_top;
|
| 515 |
|
| 516 |
/* Process the options */
|
| 517 |
|
| 518 |
for (i = 1; i < argc; i++)
|
| 519 |
{
|
| 520 |
if (argv[i][0] != '-') break;
|
| 521 |
|
| 522 |
/* Missing options */
|
| 523 |
|
| 524 |
if (argv[i][1] == 0) exit(usage(2));
|
| 525 |
|
| 526 |
/* Long name options */
|
| 527 |
|
| 528 |
if (argv[i][1] == '-')
|
| 529 |
{
|
| 530 |
option_item *op;
|
| 531 |
|
| 532 |
if (strncmp(argv[i]+2, "file=", 5) == 0)
|
| 533 |
{
|
| 534 |
pattern_filename = argv[i] + 7;
|
| 535 |
continue;
|
| 536 |
}
|
| 537 |
|
| 538 |
for (op = optionlist; op->one_char != 0; op++)
|
| 539 |
{
|
| 540 |
if (strcmp(argv[i]+2, op->long_name) == 0)
|
| 541 |
{
|
| 542 |
options = handle_option(op->one_char, options);
|
| 543 |
break;
|
| 544 |
}
|
| 545 |
}
|
| 546 |
if (op->one_char == 0)
|
| 547 |
{
|
| 548 |
fprintf(stderr, "pcregrep: Unknown option %s\n", argv[i]);
|
| 549 |
exit(usage(2));
|
| 550 |
}
|
| 551 |
}
|
| 552 |
|
| 553 |
/* One-char options */
|
| 554 |
|
| 555 |
else
|
| 556 |
{
|
| 557 |
char *s = argv[i] + 1;
|
| 558 |
while (*s != 0)
|
| 559 |
{
|
| 560 |
if (*s == 'f')
|
| 561 |
{
|
| 562 |
pattern_filename = s + 1;
|
| 563 |
if (pattern_filename[0] == 0)
|
| 564 |
{
|
| 565 |
if (i >= argc - 1)
|
| 566 |
{
|
| 567 |
fprintf(stderr, "pcregrep: File name missing after -f\n");
|
| 568 |
exit(usage(2));
|
| 569 |
}
|
| 570 |
pattern_filename = argv[++i];
|
| 571 |
}
|
| 572 |
break;
|
| 573 |
}
|
| 574 |
else options = handle_option(*s++, options);
|
| 575 |
}
|
| 576 |
}
|
| 577 |
}
|
| 578 |
|
| 579 |
pattern_list = (pcre **)malloc(MAX_PATTERN_COUNT * sizeof(pcre *));
|
| 580 |
hints_list = (pcre_extra **)malloc(MAX_PATTERN_COUNT * sizeof(pcre_extra *));
|
| 581 |
|
| 582 |
if (pattern_list == NULL || hints_list == NULL)
|
| 583 |
{
|
| 584 |
fprintf(stderr, "pcregrep: malloc failed\n");
|
| 585 |
return 2;
|
| 586 |
}
|
| 587 |
|
| 588 |
/* Compile the regular expression(s). */
|
| 589 |
|
| 590 |
if (pattern_filename != NULL)
|
| 591 |
{
|
| 592 |
FILE *f = fopen(pattern_filename, "r");
|
| 593 |
char buffer[BUFSIZ];
|
| 594 |
if (f == NULL)
|
| 595 |
{
|
| 596 |
fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pattern_filename,
|
| 597 |
strerror(errno));
|
| 598 |
return 2;
|
| 599 |
}
|
| 600 |
while (fgets(buffer, sizeof(buffer), f) != NULL)
|
| 601 |
{
|
| 602 |
char *s = buffer + (int)strlen(buffer);
|
| 603 |
if (pattern_count >= MAX_PATTERN_COUNT)
|
| 604 |
{
|
| 605 |
fprintf(stderr, "pcregrep: Too many patterns in file (max %d)\n",
|
| 606 |
MAX_PATTERN_COUNT);
|
| 607 |
return 2;
|
| 608 |
}
|
| 609 |
while (s > buffer && isspace((unsigned char)(s[-1]))) s--;
|
| 610 |
if (s == buffer) continue;
|
| 611 |
*s = 0;
|
| 612 |
pattern_list[pattern_count] = pcre_compile(buffer, options, &error,
|
| 613 |
&errptr, NULL);
|
| 614 |
if (pattern_list[pattern_count++] == NULL)
|
| 615 |
{
|
| 616 |
fprintf(stderr, "pcregrep: Error in regex number %d at offset %d: %s\n",
|
| 617 |
pattern_count, errptr, error);
|
| 618 |
return 2;
|
| 619 |
}
|
| 620 |
}
|
| 621 |
fclose(f);
|
| 622 |
}
|
| 623 |
|
| 624 |
/* If no file name, a single regex must be given inline */
|
| 625 |
|
| 626 |
else
|
| 627 |
{
|
| 628 |
if (i >= argc) return usage(2);
|
| 629 |
pattern_list[0] = pcre_compile(argv[i++], options, &error, &errptr, NULL);
|
| 630 |
if (pattern_list[0] == NULL)
|
| 631 |
{
|
| 632 |
fprintf(stderr, "pcregrep: Error in regex at offset %d: %s\n", errptr,
|
| 633 |
error);
|
| 634 |
return 2;
|
| 635 |
}
|
| 636 |
pattern_count++;
|
| 637 |
}
|
| 638 |
|
| 639 |
/* Study the regular expressions, as we will be running them may times */
|
| 640 |
|
| 641 |
for (j = 0; j < pattern_count; j++)
|
| 642 |
{
|
| 643 |
hints_list[j] = pcre_study(pattern_list[j], 0, &error);
|
| 644 |
if (error != NULL)
|
| 645 |
{
|
| 646 |
char s[16];
|
| 647 |
if (pattern_count == 1) s[0] = 0; else sprintf(s, " number %d", j);
|
| 648 |
fprintf(stderr, "pcregrep: Error while studying regex%s: %s\n", s, error);
|
| 649 |
return 2;
|
| 650 |
}
|
| 651 |
}
|
| 652 |
|
| 653 |
/* If there are no further arguments, do the business on stdin and exit */
|
| 654 |
|
| 655 |
if (i >= argc) return pcregrep(stdin, NULL);
|
| 656 |
|
| 657 |
/* Otherwise, work through the remaining arguments as files or directories.
|
| 658 |
Pass in the fact that there is only one argument at top level - this suppresses
|
| 659 |
the file name if the argument is not a directory. */
|
| 660 |
|
| 661 |
only_one_at_top = (i == argc - 1);
|
| 662 |
if (filenames_only) filenames = TRUE;
|
| 663 |
|
| 664 |
for (; i < argc; i++)
|
| 665 |
{
|
| 666 |
int frc = grep_or_recurse(argv[i], recurse, filenames, only_one_at_top);
|
| 667 |
if (frc == 0 && rc == 1) rc = 0;
|
| 668 |
}
|
| 669 |
|
| 670 |
return rc;
|
| 671 |
}
|
| 672 |
|
| 673 |
/* End */
|
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