[PATCH v4 05/17] strbuf: add strbuf_isspace()

From: Christian Couder <chriscool@tuxfamily.org>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, Johan Herland <johan@herland.net>,
	Josh Triplett <josh@joshtriplett.org>,
	Thomas Rast <tr@thomasrast.ch>,
	Michael Haggerty <mhagger@alum.mit.edu>,
	Eric Sunshine <sunshine@sunshineco.com>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	Greg Kroah-Hartman <greg@kroah.com>, Jeff King <peff@peff.net>
Subject: [PATCH v4 05/17] strbuf: add strbuf_isspace()
Date: Thu, 30 Jan 2014 07:49:08 +0100	[thread overview]
Message-ID: <20140130064921.7504.74582.chriscool@tuxfamily.org> (raw)
In-Reply-To: <20140130064217.7504.473.chriscool@tuxfamily.org>

This helper function checks if a strbuf
contains only space chars or not.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 strbuf.c | 7 +++++++
 strbuf.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/strbuf.c b/strbuf.c
index 83caf4a..2124bb8 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -124,6 +124,13 @@ void strbuf_ltrim(struct strbuf *sb)
 	sb->buf[sb->len] = '\0';
 }
 
+int strbuf_isspace(struct strbuf *sb)
+{
+	char *b;
+	for (b = sb->buf; *b && isspace(*b); b++);
+	return !*b;
+}
+
 struct strbuf **strbuf_split_buf(const char *str, size_t slen,
 				 int terminator, int max)
 {
diff --git a/strbuf.h b/strbuf.h
index 73e80ce..02bff3a 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -42,6 +42,7 @@ static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
 extern void strbuf_trim(struct strbuf *);
 extern void strbuf_rtrim(struct strbuf *);
 extern void strbuf_ltrim(struct strbuf *);
+extern int strbuf_isspace(struct strbuf *);
 extern int strbuf_cmp(const struct strbuf *, const struct strbuf *);
 
 /*
-- 
1.8.5.2.201.gacc5987
