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| author | Eric Andersen | 2004-05-26 11:47:55 +0000 |
|---|---|---|
| committer | Eric Andersen | 2004-05-26 11:47:55 +0000 |
| commit | dec7f81370071b3e4d080d14491f60ef0e5577b8 (patch) | |
| tree | 7ec9e4de6a7eda529bc016b74b75074c5aa1639d | |
| parent | ee70fa5523520f810f77b8a94aa1ffdbd9aff057 (diff) | |
| download | busybox-dec7f81370071b3e4d080d14491f60ef0e5577b8.zip busybox-dec7f81370071b3e4d080d14491f60ef0e5577b8.tar.gz | |
Rick Richardson writes:
Here is a patch that adds egrep -L support (the opposite of egrep -l).
I realize this is probably too late for 1.0. But I offer it for your
future consideration.
egrep -L is used in some networking startup scripts I inherited.
-Rick
| -rw-r--r-- | findutils/grep.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/findutils/grep.c b/findutils/grep.c index 6ece0ab..4e7e159 100644 --- a/findutils/grep.c +++ b/findutils/grep.c @@ -34,7 +34,7 @@ /* options */ -#define GREP_OPTS "lnqvscFiHhe:f:" +#define GREP_OPTS "lnqvscFiHhe:f:L" #define GREP_OPT_l 1 static char print_files_with_matches; #define GREP_OPT_n 2 @@ -55,15 +55,17 @@ static char fgrep_flag; #define GREP_OPT_h 512 #define GREP_OPT_e 1024 #define GREP_OPT_f 2048 +#define GREP_OPT_L 4096 +static char print_files_without_matches; #ifdef CONFIG_FEATURE_GREP_CONTEXT #define GREP_OPT_CONTEXT "A:B:C" -#define GREP_OPT_A 4096 -#define GREP_OPT_B 8192 -#define GREP_OPT_C 16384 -#define GREP_OPT_E 32768U +#define GREP_OPT_A 8192 +#define GREP_OPT_B 16384 +#define GREP_OPT_C 32768 +#define GREP_OPT_E 65536 #else #define GREP_OPT_CONTEXT "" -#define GREP_OPT_E 4096 +#define GREP_OPT_E 8192 #endif #ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS # define OPT_EGREP "E" @@ -147,7 +149,7 @@ static int grep_file(FILE *file) free(line); /* if we found a match but were told to be quiet, stop here */ - if (be_quiet) + if (be_quiet || print_files_without_matches) return -1; /* keep track of matches */ @@ -227,6 +229,11 @@ static int grep_file(FILE *file) puts(cur_file); } + /* grep -L: print just the filename, but only if we didn't grep the line in the file */ + if (print_files_without_matches && nmatches == 0) { + puts(cur_file); + } + return nmatches; } @@ -290,7 +297,7 @@ extern int grep_main(int argc, char **argv) bb_error_msg_and_die("invalid context length argument"); } /* sanity checks after parse may be invalid numbers ;-) */ - if ((opt & (GREP_OPT_c|GREP_OPT_q|GREP_OPT_l))) { + if ((opt & (GREP_OPT_c|GREP_OPT_q|GREP_OPT_l|GREP_OPT_L))) { opt &= ~GREP_OPT_n; lines_before = 0; lines_after = 0; @@ -305,6 +312,7 @@ extern int grep_main(int argc, char **argv) #endif print_files_with_matches = opt & GREP_OPT_l; + print_files_without_matches = (opt & GREP_OPT_L) != 0; print_line_num = opt & GREP_OPT_n; be_quiet = opt & GREP_OPT_q; invert_search = (opt & GREP_OPT_v) != 0; /* 0 | 1 */ |