This is a convenience wrapper around `reencode_string_len`
and `strbuf_attach`.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
Documentation/technical/api-strbuf.txt | 5 +++++
strbuf.c | 17 +++++++++++++++++
strbuf.h | 1 +
3 files changed, 23 insertions(+)
diff --git a/Documentation/technical/api-strbuf.txt b/Documentation/technical/api-strbuf.txt
index 8480f89..a468816 100644
--- a/Documentation/technical/api-strbuf.txt
+++ b/Documentation/technical/api-strbuf.txt
@@ -129,6 +129,11 @@ Functions
Lowercase each character in the buffer using `tolower`.
+`strbuf_reencode`::
+
+ Replace the contents of the strbuf with a reencoded form. Returns -1
+ on error, 0 on success.
+
`strbuf_cmp`::
Compare two buffers. Returns an integer less than, equal to, or greater
diff --git a/strbuf.c b/strbuf.c
index d289d1a..a717d9b 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -1,5 +1,6 @@
#include "cache.h"
#include "refs.h"
+#include "utf8.h"
int starts_with(const char *str, const char *prefix)
{
@@ -113,6 +114,22 @@ void strbuf_tolower(struct strbuf *sb)
sb->buf[i] = tolower(sb->buf[i]);
}
+int strbuf_reencode(struct strbuf *sb, const char *from, const char *to)
+{
+ char *out;
+ int len;
+
+ if (same_encoding(from, to))
+ return 0;
+
+ out = reencode_string_len(sb->buf, sb->len, to, from, &len);
+ if (!out)
+ return -1;
+
+ strbuf_attach(sb, out, len, len);
+ return 0;
+}
+
struct strbuf **strbuf_split_buf(const char *str, size_t slen,
int terminator, int max)
{
diff --git a/strbuf.h b/strbuf.h
index 25328b9..a068dd6 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -46,6 +46,7 @@ extern void strbuf_trim(struct strbuf *);
extern void strbuf_rtrim(struct strbuf *);
extern void strbuf_ltrim(struct strbuf *);
extern void strbuf_tolower(struct strbuf *sb);
+extern int strbuf_reencode(struct strbuf *sb, const char *from, const char *to);
extern int strbuf_cmp(const struct strbuf *, const struct strbuf *);
/*
--
2.0.0.rc1.436.g03cb729
--
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