1 files changed, 81 insertions, 0 deletions
diff --git a/src/core/recode.c b/src/core/recode.c
index ca69b73e..2f126d6e 100644
--- a/src/core/recode.c
+++ b/src/core/recode.c
@@ -182,6 +182,87 @@ char *recode_out(const SERVER_REC *server, const char *str, const char *target)
 	return recoded;
 }
 
+char **recode_split(const SERVER_REC *server, const char *str,
+		    const char *target, int len)
+{
+	GIConv cd = (GIConv)-1;
+	const char *from = translit_charset;
+	const char *to = translit_charset;
+	char *translit_to = NULL;
+	const char *inbuf = str;
+	const char *previnbuf = inbuf;
+	char *tmp = NULL;
+	char *outbuf;
+	gsize inbytesleft = strlen(inbuf);
+	gsize outbytesleft = len;
+	int n = 0;
+	char **ret;
+
+	if (!str)
+		return NULL;
+
+	if (settings_get_bool("recode")) {
+		to = find_conversion(server, target);
+		if (to == NULL)
+			/* default outgoing charset if set */
+			to = settings_get_str("recode_out_default_charset");
+		if (to && *to != '\0') {
+			if (settings_get_bool("recode_transliterate") &&
+			    !is_translit(to))
+				to = translit_to = g_strconcat(to,
+							       "//TRANSLIT",
+							       NULL);
+		} else {
+			to = from;
+		}
+	}
+
+	cd = g_iconv_open(to, from);
+	if (cd == (GIConv)-1) {
+		/* Fall back to splitting by byte. */
+		ret = strsplit_len(str, len);
+		goto out;
+	}
+
+	tmp = g_malloc(outbytesleft);
+	outbuf = tmp;
+	ret = g_new(char *, 1);
+	while (g_iconv(cd, (char **)&inbuf, &inbytesleft, &outbuf,
+		       &outbytesleft) == -1) {
+		if (errno != E2BIG) {
+			/*
+			 * Conversion failed. Fall back to splitting
+			 * by byte.
+			 */
+			ret[n] = NULL;
+			g_strfreev(ret);
+			ret = strsplit_len(str, len);
+			goto out;
+		}
+
+		/* Outbuf overflowed, split the input string. */
+		ret[n++] = g_strndup(previnbuf, inbuf - previnbuf);
+		ret = g_renew(char *, ret, n + 1);
+		previnbuf = inbuf;
+
+		/* Reset outbuf for the next substring. */
+		outbuf = tmp;
+		outbytesleft = len;
+	}
+	/* Copy the last substring into the array. */
+	ret[n++] = g_strndup(previnbuf, inbuf - previnbuf);
+	ret = g_renew(char *, ret, n + 1);
+	ret[n] = NULL;
+
+out:
+	if (cd != (GIConv)-1)
+		g_iconv_close(cd);
+	g_free(translit_to);
+	g_free(tmp);
+
+	return ret;
+}
+
 void recode_update_charset(void)
 {
 	const char *charset = settings_get_str("term_charset");