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grep: properly handle grep -w "^str" in !EXTRA_COMPAT case too

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function                                             old     new   delta
grep_file                                           1267    1288     +21

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Bartosz Golaszewski 2014-02-07 17:14:37 +01:00 committed by Denys Vlasenko
parent 07f417b6ab
commit 3ba2df874c
2 changed files with 12 additions and 2 deletions
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8
findutils/grep.c
View File

@ -375,6 +375,8 @@ static int grep_file(FILE *file)
} else {
#if ENABLE_EXTRA_COMPAT
unsigned start_pos;
#else
int match_flg;
#endif
char *match_at;
@ -392,6 +394,7 @@ static int grep_file(FILE *file)
#if !ENABLE_EXTRA_COMPAT
gl->matched_range.rm_so = 0;
gl->matched_range.rm_eo = 0;
match_flg = 0;
#else
start_pos = 0;
#endif
@ -400,7 +403,7 @@ static int grep_file(FILE *file)
//bb_error_msg("'%s' start_pos:%d line_len:%d", match_at, start_pos, line_len);
if (
#if !ENABLE_EXTRA_COMPAT
regexec(&gl->compiled_regex, match_at, 1, &gl->matched_range, 0) == 0
regexec(&gl->compiled_regex, match_at, 1, &gl->matched_range, match_flg) == 0
#else
re_search(&gl->compiled_regex, match_at, line_len,
start_pos, /*range:*/ line_len,
@ -415,7 +418,7 @@ static int grep_file(FILE *file)
found = 1;
} else {
char c = ' ';
if (gl->matched_range.rm_so)
if (match_at > line || gl->matched_range.rm_so != 0)
c = match_at[gl->matched_range.rm_so - 1];
if (!isalnum(c) && c != '_') {
c = match_at[gl->matched_range.rm_eo];
@ -432,6 +435,7 @@ static int grep_file(FILE *file)
#if !ENABLE_EXTRA_COMPAT
if (gl->matched_range.rm_eo != 0) {
match_at += gl->matched_range.rm_eo;
match_flg |= REG_NOTBOL;
goto opt_w_again;
}
#else

6
testsuite/grep.tests
View File

@ -159,6 +159,12 @@ testing "grep -w ^ doesn't hang" \
"anything\n" \
""
testing "grep -w word doesn't match wordword" \
"grep -w word input" \
"" \
"wordword\n" \
""
# testing "test name" "commands" "expected result" "file input" "stdin"
# file input will be file called "input"
# test can create a file "actual" instead of writing to stdout