Sometimes it is handy to cut a trailing string off the end
of a strbuf (e.g., a file extension). These helper functions
make it a one-liner.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
strbuf.c | 11 +++++++++++
strbuf.h | 2 ++
2 files changed, 13 insertions(+)
diff --git a/strbuf.c b/strbuf.c
index 9a373be..8199ced 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -106,6 +106,17 @@ void strbuf_ltrim(struct strbuf *sb)
sb->buf[sb->len] = '\0';
}
+void strbuf_chompmem(struct strbuf *sb, const void *data, size_t len)
+{
+ if (sb->len >= len && !memcmp(data, sb->buf + sb->len - len, len))
+ strbuf_setlen(sb, sb->len - len);
+}
+
+void strbuf_chompstr(struct strbuf *sb, const char *str)
+{
+ strbuf_chompmem(sb, str, strlen(str));
+}
+
struct strbuf **strbuf_split_buf(const char *str, size_t slen,
int terminator, int max)
{
diff --git a/strbuf.h b/strbuf.h
index ecae4e2..3aeb815 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -42,6 +42,8 @@ extern void strbuf_ltrim(struct strbuf *);
extern void strbuf_trim(struct strbuf *);
extern void strbuf_rtrim(struct strbuf *);
extern void strbuf_ltrim(struct strbuf *);
+extern void strbuf_chompmem(struct strbuf *, const void *, size_t);
+extern void strbuf_chompstr(struct strbuf *, const char *);
extern int strbuf_cmp(const struct strbuf *, const struct strbuf *);
/*
--
1.8.0.2.16.g72e2fc9
--
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