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authorDenis Vlasenko2006-09-29 21:04:12 +0000
committerDenis Vlasenko2006-09-29 21:04:12 +0000
commit6c30db8bd37da1466dc71bf3c8c20851d8f46c43 (patch)
tree7585fdac678edd30f1b46a0cb999619cb0b981cf
parent51937534fb6ae25b4197ac03635bb09a405957ba (diff)
downloadbusybox-6c30db8bd37da1466dc71bf3c8c20851d8f46c43.zip
busybox-6c30db8bd37da1466dc71bf3c8c20851d8f46c43.tar.gz
grep: add help text; fix style
-rw-r--r--findutils/grep.c50
-rw-r--r--include/usage.h3
2 files changed, 27 insertions, 26 deletions
diff --git a/findutils/grep.c b/findutils/grep.c
index f301b53..e02fc8d 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -140,7 +140,7 @@ static int grep_file(FILE *file)
* match (regexec returns failure (REG_NOMATCH) and the user specified
* invert search)
*/
- if(!(gl->flg_mem_alocated_compiled & COMPILED)) {
+ if (!(gl->flg_mem_alocated_compiled & COMPILED)) {
gl->flg_mem_alocated_compiled |= COMPILED;
xregcomp(&(gl->preg), gl->pattern, reflags);
}
@@ -210,7 +210,7 @@ static int grep_file(FILE *file)
#if ENABLE_FEATURE_GREP_CONTEXT
else { /* no match */
/* Add the line to the circular 'before' buffer */
- if(lines_before) {
+ if (lines_before) {
free(before_buf[curpos]);
before_buf[curpos] = xstrdup(line);
curpos = (curpos + 1) % lines_before;
@@ -273,7 +273,7 @@ static void load_regexes_from_file(llist_t *fopt)
char *line;
FILE *f;
- while(fopt) {
+ while (fopt) {
llist_t *cur = fopt;
char *ffile = cur->data;
@@ -308,23 +308,23 @@ int grep_main(int argc, char **argv)
&pattern_head, &fopt,
&slines_after, &slines_before, &Copt);
- if(opt & GREP_OPT_C) {
+ if (opt & GREP_OPT_C) {
/* C option unseted A and B options, but next -A or -B
may be ovewrite own option */
- if(!(opt & GREP_OPT_A)) /* not overwtited */
+ if (!(opt & GREP_OPT_A)) /* not overwtited */
slines_after = Copt;
- if(!(opt & GREP_OPT_B)) /* not overwtited */
+ if (!(opt & GREP_OPT_B)) /* not overwtited */
slines_before = Copt;
opt |= GREP_OPT_A|GREP_OPT_B; /* set for parse now */
}
- if(opt & GREP_OPT_A) {
+ if (opt & GREP_OPT_A) {
lines_after = strtoul(slines_after, &junk, 10);
- if(*junk != '\0')
+ if (*junk != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, slines_after, "-A");
}
- if(opt & GREP_OPT_B) {
+ if (opt & GREP_OPT_B) {
lines_before = strtoul(slines_before, &junk, 10);
- if(*junk != '\0')
+ if (*junk != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, slines_before, "-B");
}
/* sanity checks after parse may be invalid numbers ;-) */
@@ -332,7 +332,7 @@ int grep_main(int argc, char **argv)
opt &= ~GREP_OPT_n;
lines_before = 0;
lines_after = 0;
- } else if(lines_before > 0)
+ } else if (lines_before > 0)
before_buf = (char **)xzalloc(lines_before * sizeof(char *));
#else
/* with auto sanity checks */
@@ -342,31 +342,31 @@ int grep_main(int argc, char **argv)
#endif
invert_search = (opt & GREP_OPT_v) != 0; /* 0 | 1 */
- if(opt & GREP_OPT_H)
+ if (opt & GREP_OPT_H)
print_filename++;
- if(opt & GREP_OPT_h)
+ if (opt & GREP_OPT_h)
print_filename--;
if (pattern_head != NULL) {
/* convert char *argv[] to grep_list_data_t */
llist_t *cur;
- for(cur = pattern_head; cur; cur = cur->link)
+ for (cur = pattern_head; cur; cur = cur->link)
cur->data = new_grep_list_data(cur->data, 0);
}
- if(opt & GREP_OPT_f)
+ if (opt & GREP_OPT_f)
load_regexes_from_file(fopt);
- if(ENABLE_FEATURE_GREP_FGREP_ALIAS && bb_applet_name[0] == 'f')
+ if (ENABLE_FEATURE_GREP_FGREP_ALIAS && bb_applet_name[0] == 'f')
opt |= GREP_OPT_F;
- if(!(opt & GREP_OPT_o))
+ if (!(opt & GREP_OPT_o))
reflags = REG_NOSUB;
- if(ENABLE_FEATURE_GREP_EGREP_ALIAS &&
+ if (ENABLE_FEATURE_GREP_EGREP_ALIAS &&
(bb_applet_name[0] == 'e' || (opt & GREP_OPT_E)))
reflags |= REG_EXTENDED;
- if(opt & GREP_OPT_i)
+ if (opt & GREP_OPT_i)
reflags |= REG_ICASE;
argv += optind;
@@ -398,7 +398,7 @@ int grep_main(int argc, char **argv)
matched = 0;
while (argc--) {
cur_file = *argv++;
- if(!cur_file || (*cur_file == '-' && !cur_file[1])) {
+ if (!cur_file || (*cur_file == '-' && !cur_file[1])) {
cur_file = "(standard input)";
file = stdin;
} else {
@@ -410,7 +410,7 @@ int grep_main(int argc, char **argv)
error_open_count++;
} else {
matched += grep_file(file);
- if(matched < 0) {
+ if (matched < 0) {
/* we found a match but were told to be quiet, stop here and
* return success */
break;
@@ -427,9 +427,9 @@ int grep_main(int argc, char **argv)
(grep_list_data_t *)pattern_head_ptr->data;
pattern_head = pattern_head->link;
- if((gl->flg_mem_alocated_compiled & PATTERN_MEM_A))
+ if ((gl->flg_mem_alocated_compiled & PATTERN_MEM_A))
free(gl->pattern);
- if((gl->flg_mem_alocated_compiled & COMPILED))
+ if ((gl->flg_mem_alocated_compiled & COMPILED))
regfree(&(gl->preg));
free(pattern_head_ptr);
}
@@ -437,9 +437,9 @@ int grep_main(int argc, char **argv)
/* 0 = success, 1 = failed, 2 = error */
/* If the -q option is specified, the exit status shall be zero
* if an input line is selected, even if an error was detected. */
- if(BE_QUIET && matched)
+ if (BE_QUIET && matched)
return 0;
- if(error_open_count)
+ if (error_open_count)
return 2;
return !matched; /* invert return value 0 = success, 1 = failed */
}
diff --git a/include/usage.h b/include/usage.h
index bb814f1..543befc 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -927,7 +927,7 @@ USE_FEATURE_DATE_ISOFMT( \
"\t-H login_host\tLog login_host into the utmp file as the hostname"
#define grep_trivial_usage \
- "[-ihHnqvs" \
+ "[-ihHnqvso" \
USE_FEATURE_GREP_EGREP_ALIAS("E") \
USE_FEATURE_GREP_CONTEXT("ABC") \
"] PATTERN [FILEs...]"
@@ -945,6 +945,7 @@ USE_FEATURE_DATE_ISOFMT( \
"\t-s\tsuppress file open/read error messages\n" \
"\t-c\tonly print count of matching lines\n" \
"\t-f\tread PATTERN from file\n" \
+ "\t-o\tshow only the part of a line that matches PATTERN\n" \
"\t-e\tPATTERN is a regular expression\n" \
"\t-F\tPATTERN is a set of newline-separated strings" \
USE_FEATURE_GREP_EGREP_ALIAS("\n\t-E\tPATTERN is an extended regular expression") \