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Tightened things up a bit, saved 20 bytes, and made the code a bit clearer in

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the process.
This commit is contained in:
Mark Whitley 2001-02-01 21:02:41 +00:00
parent 065c7e779a
commit b5c29850e3
2 changed files with 28 additions and 58 deletions
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43
findutils/grep.c
View File

@ -48,19 +48,6 @@ static int matched; /* keeps track of whether we ever matched */
static char *cur_file = NULL; /* the current file we are reading */
static void print_matched_line(char *line, int linenum)
{
if (print_count_only)
return;
if (print_filename)
printf("%s:", cur_file);
if (print_line_num)
printf("%i:", linenum);
puts(line);
}
static void grep_file(FILE *file)
{
char *line = NULL;
@ -72,7 +59,11 @@ static void grep_file(FILE *file)
chomp(line);
linenum++;
ret = regexec(&regex, line, 0, NULL, 0);
if (ret == 0 && !invert_search) { /* match */
/* test for a postitive-assertion match (regexec returned success (0)
* and the user did not specify invert search), or a negative-assertion
* match (vice versa) */
if ((ret == 0 && !invert_search) || (ret == REG_NOMATCH && invert_search)) {
/* if we found a match but were told to be quiet, stop here and
* return success */
@ -81,20 +72,17 @@ static void grep_file(FILE *file)
exit(0);
}
/* otherwise, keep track of matches, print the matched line, and
* whatever else the user wanted */
nmatches++;
print_matched_line(line, linenum);
}
else if (ret == REG_NOMATCH && invert_search) {
if (be_quiet) {
regfree(&regex);
exit(0);
if (!print_count_only) {
if (print_filename)
printf("%s:", cur_file);
if (print_line_num)
printf("%i:", linenum);
puts(line);
}
nmatches++;
print_matched_line(line, linenum);
}
free(line);
}
@ -186,8 +174,5 @@ extern int grep_main(int argc, char **argv)
regfree(&regex);
if (!matched)
return 1;
return 0;
return !matched; /* invert return value 0 = success, 1 = failed */
}

43
grep.c
View File

@ -48,19 +48,6 @@ static int matched; /* keeps track of whether we ever matched */
static char *cur_file = NULL; /* the current file we are reading */
static void print_matched_line(char *line, int linenum)
{
if (print_count_only)
return;
if (print_filename)
printf("%s:", cur_file);
if (print_line_num)
printf("%i:", linenum);
puts(line);
}
static void grep_file(FILE *file)
{
char *line = NULL;
@ -72,7 +59,11 @@ static void grep_file(FILE *file)
chomp(line);
linenum++;
ret = regexec(&regex, line, 0, NULL, 0);
if (ret == 0 && !invert_search) { /* match */
/* test for a postitive-assertion match (regexec returned success (0)
* and the user did not specify invert search), or a negative-assertion
* match (vice versa) */
if ((ret == 0 && !invert_search) || (ret == REG_NOMATCH && invert_search)) {
/* if we found a match but were told to be quiet, stop here and
* return success */
@ -81,20 +72,17 @@ static void grep_file(FILE *file)
exit(0);
}
/* otherwise, keep track of matches, print the matched line, and
* whatever else the user wanted */
nmatches++;
print_matched_line(line, linenum);
}
else if (ret == REG_NOMATCH && invert_search) {
if (be_quiet) {
regfree(&regex);
exit(0);
if (!print_count_only) {
if (print_filename)
printf("%s:", cur_file);
if (print_line_num)
printf("%i:", linenum);
puts(line);
}
nmatches++;
print_matched_line(line, linenum);
}
free(line);
}
@ -186,8 +174,5 @@ extern int grep_main(int argc, char **argv)
regfree(&regex);
if (!matched)
return 1;
return 0;
return !matched; /* invert return value 0 = success, 1 = failed */
}