Changeset 28a5ebd in mainline for uspace/lib/clui/tinput.h

Timestamp:

2020-06-18T15:39:50Z (4 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ce52c333

Parents:

4f663f3e

Message:

Use char32_t instead of wchat_t to represent UTF-32 strings

The intention of the native HelenOS string API has been always to
support Unicode in the UTF-8 and UTF-32 encodings as the sole character
representations and ignore the obsolete mess of older single-byte and
multibyte character encodings. Before C11, the wchar_t type has been
slightly misused for the purpose of the UTF-32 strings. The newer
char32_t type is obviously a much more suitable option. The standard
defines char32_t as uint_least32_t, thus we can take the liberty to fix
it to uint32_t.

To maintain compatilibity with the C Standard, the putwchar(wchar_t)
functions has been replaced by our custom putuchar(char32_t) functions
where appropriate.

File:

• uspace/lib/clui/tinput.h (modified) (2 diffs)

uspace/lib/clui/tinput.h

@@ -63 +63 @@
  * @return              EOK on success, error code on failure.
  */
-typedef errno_t (*tinput_compl_init_fn)(wchar_t *text, size_t pos, size_t *cstart,
+typedef errno_t (*tinput_compl_init_fn)(char32_t *text, size_t pos, size_t *cstart,
     void **state);
 
@@ -111 +111 @@
 
         /** Buffer holding text currently being edited */
-        wchar_t buffer[INPUT_MAX_SIZE + 1];
+        char32_t buffer[INPUT_MAX_SIZE + 1];
 
         /** Linear position on screen where the prompt starts */