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-rw-r--r--strbuf.h15
1 files changed, 13 insertions, 2 deletions
diff --git a/strbuf.h b/strbuf.h
index aef279465..43f27c3a6 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -491,10 +491,21 @@ extern void strbuf_add_lines(struct strbuf *sb, const char *prefix, const char *
*/
extern void strbuf_addstr_xml_quoted(struct strbuf *sb, const char *s);
+/**
+ * "Complete" the contents of `sb` by ensuring that either it ends with the
+ * character `term`, or it is empty. This can be used, for example,
+ * to ensure that text ends with a newline, but without creating an empty
+ * blank line if there is no content in the first place.
+ */
+static inline void strbuf_complete(struct strbuf *sb, char term)
+{
+ if (sb->len && sb->buf[sb->len - 1] != term)
+ strbuf_addch(sb, term);
+}
+
static inline void strbuf_complete_line(struct strbuf *sb)
{
- if (sb->len && sb->buf[sb->len - 1] != '\n')
- strbuf_addch(sb, '\n');
+ strbuf_complete(sb, '\n');
}
extern int strbuf_branchname(struct strbuf *sb, const char *name);