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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2009-07-29 01:20:09 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2009-07-29 01:20:09 +0200 |
| commit | 09449630fbf0331a76a9d055fcbff0774c57ab65 (patch) | |
| tree | ce6e43bbb9efe4a76296f04457e98b79cf874459 | |
| parent | 97af2ff8caa782f623e79408f0dfe608c878d5a6 (diff) | |
| download | busybox-09449630fbf0331a76a9d055fcbff0774c57ab65.tar.gz | |
grep: fix -E + {range}; fix -o not printing all matches (bug 489)
two different bugs, one with EXTRA_COMPAT, other without.
function old new delta
grep_file 1132 1129 -3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | findutils/grep.c | 36 | ||||
| -rwxr-xr-x | testsuite/grep.tests | 5 |
2 files changed, 26 insertions, 15 deletions
diff --git a/findutils/grep.c b/findutils/grep.c index 774f04d5d..776a629be 100644 --- a/findutils/grep.c +++ b/findutils/grep.c @@ -120,17 +120,18 @@ struct globals { } while (0) #define max_matches (G.max_matches ) #if !ENABLE_EXTRA_COMPAT -#define reflags (G.reflags ) +# define reflags (G.reflags ) #else -#define case_fold (G.case_fold ) +# define case_fold (G.case_fold ) /* http://www.delorie.com/gnu/docs/regex/regex_46.html */ -#define reflags re_syntax_options -#undef REG_NOSUB -#undef REG_EXTENDED -#undef REG_ICASE -#define REG_NOSUB bug:is:here /* should not be used */ -#define REG_EXTENDED RE_SYNTAX_EGREP -#define REG_ICASE bug:is:here /* should not be used */ +# define reflags re_syntax_options +# undef REG_NOSUB +# undef REG_EXTENDED +# undef REG_ICASE +# define REG_NOSUB bug:is:here /* should not be used */ +/* Just RE_SYNTAX_EGREP is not enough, need to enable {n[,[m]]} too */ +# define REG_EXTENDED (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES) +# define REG_ICASE bug:is:here /* should not be used */ #endif #define invert_search (G.invert_search ) #define print_filename (G.print_filename ) @@ -370,17 +371,22 @@ static int grep_file(FILE *file) if (found) print_line(gl->pattern, strlen(gl->pattern), linenum, ':'); } else while (1) { - char old = line[gl->matched_range.rm_eo]; - line[gl->matched_range.rm_eo] = '\0'; + unsigned end = gl->matched_range.rm_eo; + char old = line[end]; + line[end] = '\0'; print_line(line + gl->matched_range.rm_so, - gl->matched_range.rm_eo - gl->matched_range.rm_so, + end - gl->matched_range.rm_so, linenum, ':'); - line[gl->matched_range.rm_eo] = old; + line[end] = old; #if !ENABLE_EXTRA_COMPAT - break; + if (regexec(&gl->compiled_regex, line + end, + 1, &gl->matched_range, REG_NOTBOL) != 0) + break; + gl->matched_range.rm_so += end; + gl->matched_range.rm_eo += end; #else if (re_search(&gl->compiled_regex, line, line_len, - gl->matched_range.rm_eo, line_len - gl->matched_range.rm_eo, + end, line_len - end, &gl->matched_range) < 0) break; #endif diff --git a/testsuite/grep.tests b/testsuite/grep.tests index 8cee1b9ee..7e3dff0d6 100755 --- a/testsuite/grep.tests +++ b/testsuite/grep.tests @@ -85,4 +85,9 @@ testing "grep is also egrep" "egrep foo" "foo\n" "" "foo\nbar\n" testing "egrep is not case insensitive" \ "egrep foo ; [ \$? -ne 0 ] && echo yes" "yes\n" "" "FOO\n" +testing "grep -E -o prints all matches" \ + "grep -E -o '([[:xdigit:]]{2}[:-]){5}[[:xdigit:]]{2}'" \ + "00:19:3E:00:AA:5E\n00:1D:60:3D:3A:FB\n00:22:43:49:FB:AA\n" \ + "" "00:19:3E:00:AA:5E 00:1D:60:3D:3A:FB 00:22:43:49:FB:AA\n" + exit $FAILCOUNT |