strbuf: allow strbuf_split to work on non-strbufs

The strbuf_split function takes a strbuf as input, and
outputs a list of strbufs. However, there is no reason that
the input has to be a strbuf, and not an arbitrary buffer.

This patch adds strbuf_split_buf for a length-delimited
buffer, and strbuf_split_str for NUL-terminated strings.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/strbuf.c b/strbuf.c
index 74f661ec2b..a71de9cd63 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -101,19 +101,19 @@ void strbuf_ltrim(struct strbuf *sb)
 	sb->buf[sb->len] = '\0';
 }
 
-struct strbuf **strbuf_split_max(const struct strbuf *sb, int delim, int max)
+struct strbuf **strbuf_split_buf(const char *str, size_t slen, int delim, int max)
 {
 	int alloc = 2, pos = 0;
-	char *n, *p;
+	const char *n, *p;
 	struct strbuf **ret;
 	struct strbuf *t;
 
 	ret = xcalloc(alloc, sizeof(struct strbuf *));
-	p = n = sb->buf;
-	while (n < sb->buf + sb->len) {
+	p = n = str;
+	while (n < str + slen) {
 		int len;
 		if (max <= 0 || pos + 1 < max)
-			n = memchr(n, delim, sb->len - (n - sb->buf));
+			n = memchr(n, delim, slen - (n - str));
 		else
 			n = NULL;
 		if (pos + 1 >= alloc) {
@@ -121,7 +121,7 @@ struct strbuf **strbuf_split_max(const struct strbuf *sb, int delim, int max)
 			ret = xrealloc(ret, sizeof(struct strbuf *) * alloc);
 		}
 		if (!n)
-			n = sb->buf + sb->len - 1;
+			n = str + slen - 1;
 		len = n - p + 1;
 		t = xmalloc(sizeof(struct strbuf));
 		strbuf_init(t, len);