[dev] [sbase/grep] [PATCH]: add z flag to use NULL separators

[Strake]

Not sure which would be better choice of flag: 'z' or '0', so I
arbitrarily chose 'z'.

commit 474a73ae118e6791fc56e616233dd9ccb5c8e92f
Author: strake <strake...@gmail.com>
Date:   Thu Oct 4 19:50:23 2012 -0500

    grep: add z flag to use NULL separators

diff --git a/grep.c b/grep.c
index 9716328..48a54c0 100644
--- a/grep.c
+++ b/grep.c
@@ -18,6 +18,8 @@ static bool many;
 static bool match = false;
 static char mode = 0;

+static char delim = '\n';
+
 int
 main(int argc, char *argv[])
 {
@@ -41,6 +43,9 @@ main(int argc, char *argv[])
        case 'v':
                vflag = true;
                break;
+       case 'z':
+               delim = '\0';
+               break;
        default:
                usage();
        } ARGEND;
@@ -73,7 +78,7 @@ grep(FILE *fp, const char *str, regex_t *preg)
        long n, c = 0;
        size_t size = 0, len;

-       for(n = 1; afgets(&buf, &size, fp); n++) {
+       for(n = 1; getdelim(&buf, &size, delim, fp) >= 0; n++) {
                if(buf[(len = strlen(buf))-1] == '\n')
                        buf[--len] = '\0';
                if(regexec(preg, buf, 0, NULL, 0) ^ vflag)
@@ -92,7 +97,7 @@ grep(FILE *fp, const char *str, regex_t *preg)
                                printf("%s:", str);
                        if(mode == 'n')
                                printf("%ld:", n);
-                       printf("%s\n", buf);
+                       printf("%s%c", buf, delim);
                        break;
                }
                match = true;