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-rw-r--r--Changelog4
-rw-r--r--docs/busybox.pod3
-rw-r--r--findutils/grep.c27
-rw-r--r--grep.c27
4 files changed, 36 insertions, 25 deletions
diff --git a/Changelog b/Changelog
index d6f7a489c..823f9eef6 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,7 @@
+0.44
+ * added the -v option (inverted search) to grep,
+ updated docs/busybox.pod accordingly. -beppu
+
0.43
* Major update to the provided documentation.
* Busybox now includes a shell! It currently costs 7.5 k (plus an
diff --git a/docs/busybox.pod b/docs/busybox.pod
index da890458c..71444c082 100644
--- a/docs/busybox.pod
+++ b/docs/busybox.pod
@@ -542,6 +542,7 @@ OPTIONS:
-i ignore case distinctions
-n print line number with output lines
-q be quiet. Returns 0 if result was found, 1 otherwise
+ -v select non-matching lines
This version of grep matches full regular expresions.
@@ -1816,4 +1817,4 @@ Enrique Zanardi <ezanardi@ull.es>
=cut
-# $Id: busybox.pod,v 1.21 2000/04/21 21:53:58 erik Exp $
+# $Id: busybox.pod,v 1.22 2000/04/24 18:07:30 beppu Exp $
diff --git a/findutils/grep.c b/findutils/grep.c
index abdd44236..06b6980bc 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -47,7 +47,8 @@ static const char grep_usage[] =
"\t-h\tsuppress the prefixing filename on output\n"
"\t-i\tignore case distinctions\n"
"\t-n\tprint line number with output lines\n"
- "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n\n"
+ "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n"
+ "\t-v\tselect non-matching lines\n\n"
#if defined BB_REGEXP
"This version of grep matches full regular expresions.\n";
#else
@@ -57,11 +58,12 @@ static const char grep_usage[] =
static int match = FALSE, beQuiet = FALSE;
static void do_grep(FILE * fp, char *needle, char *fileName, int tellName,
- int ignoreCase, int tellLine)
+ int ignoreCase, int tellLine, int invertSearch)
{
char *cp;
long line = 0;
char haystack[BUF_SIZE];
+ int truth = !invertSearch;
while (fgets(haystack, sizeof(haystack), fp)) {
line++;
@@ -70,7 +72,7 @@ static void do_grep(FILE * fp, char *needle, char *fileName, int tellName,
if (*cp != '\n')
fprintf(stderr, "%s: Line too long\n", fileName);
- if (find_match(haystack, needle, ignoreCase) == TRUE) {
+ if (find_match(haystack, needle, ignoreCase) == truth) {
if (tellName == TRUE)
printf("%s:", fileName);
@@ -92,13 +94,10 @@ extern int grep_main(int argc, char **argv)
char *cp;
char *needle;
char *fileName;
- int tellName = TRUE;
- int ignoreCase = TRUE;
- int tellLine = FALSE;
-
-
- ignoreCase = FALSE;
- tellLine = FALSE;
+ int tellName = TRUE;
+ int ignoreCase = FALSE;
+ int tellLine = FALSE;
+ int invertSearch = FALSE;
argc--;
argv++;
@@ -128,6 +127,10 @@ extern int grep_main(int argc, char **argv)
beQuiet = TRUE;
break;
+ case 'v':
+ invertSearch = TRUE;
+ break;
+
default:
usage(grep_usage);
}
@@ -137,7 +140,7 @@ extern int grep_main(int argc, char **argv)
argc--;
if (argc == 0) {
- do_grep(stdin, needle, "stdin", FALSE, ignoreCase, tellLine);
+ do_grep(stdin, needle, "stdin", FALSE, ignoreCase, tellLine, invertSearch);
} else {
/* Never print the filename for just one file */
if (argc == 1)
@@ -151,7 +154,7 @@ extern int grep_main(int argc, char **argv)
continue;
}
- do_grep(fp, needle, fileName, tellName, ignoreCase, tellLine);
+ do_grep(fp, needle, fileName, tellName, ignoreCase, tellLine, invertSearch);
if (ferror(fp))
perror(fileName);
diff --git a/grep.c b/grep.c
index abdd44236..06b6980bc 100644
--- a/grep.c
+++ b/grep.c
@@ -47,7 +47,8 @@ static const char grep_usage[] =
"\t-h\tsuppress the prefixing filename on output\n"
"\t-i\tignore case distinctions\n"
"\t-n\tprint line number with output lines\n"
- "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n\n"
+ "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n"
+ "\t-v\tselect non-matching lines\n\n"
#if defined BB_REGEXP
"This version of grep matches full regular expresions.\n";
#else
@@ -57,11 +58,12 @@ static const char grep_usage[] =
static int match = FALSE, beQuiet = FALSE;
static void do_grep(FILE * fp, char *needle, char *fileName, int tellName,
- int ignoreCase, int tellLine)
+ int ignoreCase, int tellLine, int invertSearch)
{
char *cp;
long line = 0;
char haystack[BUF_SIZE];
+ int truth = !invertSearch;
while (fgets(haystack, sizeof(haystack), fp)) {
line++;
@@ -70,7 +72,7 @@ static void do_grep(FILE * fp, char *needle, char *fileName, int tellName,
if (*cp != '\n')
fprintf(stderr, "%s: Line too long\n", fileName);
- if (find_match(haystack, needle, ignoreCase) == TRUE) {
+ if (find_match(haystack, needle, ignoreCase) == truth) {
if (tellName == TRUE)
printf("%s:", fileName);
@@ -92,13 +94,10 @@ extern int grep_main(int argc, char **argv)
char *cp;
char *needle;
char *fileName;
- int tellName = TRUE;
- int ignoreCase = TRUE;
- int tellLine = FALSE;
-
-
- ignoreCase = FALSE;
- tellLine = FALSE;
+ int tellName = TRUE;
+ int ignoreCase = FALSE;
+ int tellLine = FALSE;
+ int invertSearch = FALSE;
argc--;
argv++;
@@ -128,6 +127,10 @@ extern int grep_main(int argc, char **argv)
beQuiet = TRUE;
break;
+ case 'v':
+ invertSearch = TRUE;
+ break;
+
default:
usage(grep_usage);
}
@@ -137,7 +140,7 @@ extern int grep_main(int argc, char **argv)
argc--;
if (argc == 0) {
- do_grep(stdin, needle, "stdin", FALSE, ignoreCase, tellLine);
+ do_grep(stdin, needle, "stdin", FALSE, ignoreCase, tellLine, invertSearch);
} else {
/* Never print the filename for just one file */
if (argc == 1)
@@ -151,7 +154,7 @@ extern int grep_main(int argc, char **argv)
continue;
}
- do_grep(fp, needle, fileName, tellName, ignoreCase, tellLine);
+ do_grep(fp, needle, fileName, tellName, ignoreCase, tellLine, invertSearch);
if (ferror(fp))
perror(fileName);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 04:07:22 +0000