Merge branch '2019-05-24-master-imports'

[platform/kernel/u-boot.git] / include / charset.h

diff --git a/include/charset.h b/include/charset.h
index 4d45e24..4f7ae8f 100644 (file)
--- a/include/charset.h
+++ b/include/charset.h
@@ -46,9 +46,9 @@ int utf8_put(s32 code, char **dst);
  *
  * @src:               utf-8 string
  * @count:             maximum number of code points to convert
- * Return:             length in bytes after conversion to utf-16 without the
+ * Return:             length in u16 after conversion to utf-16 without the
  *                     trailing \0. If an invalid UTF-8 sequence is hit one
- *                     word will be reserved for a replacement character.
+ *                     u16 will be reserved for a replacement character.
  */
 size_t utf8_utf16_strnlen(const char *src, size_t count);
 
@@ -56,8 +56,9 @@ size_t utf8_utf16_strnlen(const char *src, size_t count);
  * utf8_utf16_strlen() - length of a utf-8 string after conversion to utf-16
  *
  * @src:               utf-8 string
- * Return:             length in bytes after conversion to utf-16 without the
- *                     trailing \0. -1 if the utf-8 string is not valid.
+ * Return:             length in u16 after conversion to utf-16 without the
+ *                     trailing \0. If an invalid UTF-8 sequence is hit one
+ *                     u16 will be reserved for a replacement character.
  */
 #define utf8_utf16_strlen(a) utf8_utf16_strnlen((a), SIZE_MAX)
 
@@ -127,7 +128,8 @@ size_t utf16_utf8_strnlen(const u16 *src, size_t count);
  *
  * @src:               utf-16 string
  * Return:             length in bytes after conversion to utf-8 without the
- *                     trailing \0. -1 if the utf-16 string is not valid.
+ *                     trailing \0. If an invalid UTF-16 sequence is hit one
+ *                     byte will be reserved for a replacement character.
  */
 #define utf16_utf8_strlen(a) utf16_utf8_strnlen((a), SIZE_MAX)
 
@@ -192,6 +194,29 @@ size_t u16_strlen(const u16 *in);
 size_t u16_strnlen(const u16 *in, size_t count);
 
 /**
+ * u16_strcpy() - copy u16 string
+ *
+ * Copy u16 string pointed to by src, including terminating null word, to
+ * the buffer pointed to by dest.
+ *
+ * @dest:              destination buffer
+ * @src:               source buffer (null terminated)
+ * Return:             'dest' address
+ */
+u16 *u16_strcpy(u16 *dest, const u16 *src);
+
+/**
+ * u16_strdup() - duplicate u16 string
+ *
+ * Copy u16 string pointed to by src, including terminating null word, to a
+ * newly allocated buffer.
+ *
+ * @src:               source buffer (null terminated)
+ * Return:             allocated new buffer on success, NULL on failure
+ */
+u16 *u16_strdup(const u16 *src);
+
+/**
  * utf16_to_utf8() - Convert an utf16 string to utf8
  *
  * Converts 'size' characters of the utf16 string 'src' to utf8