Changeset 28a5ebd in mainline for uspace/srv/hid/input/layout/us_qwerty.c

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functions has been replaced by our custom putuchar(char32_t) functions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/srv/hid/input/layout/us_qwerty.c (modified) (12 diffs)

uspace/srv/hid/input/layout/us_qwerty.c

@@ -43 +43 @@
 static errno_t us_qwerty_create(layout_t *);
 static void us_qwerty_destroy(layout_t *);
-static wchar_t us_qwerty_parse_ev(layout_t *, kbd_event_t *ev);
+static char32_t us_qwerty_parse_ev(layout_t *, kbd_event_t *ev);
 
 layout_ops_t us_qwerty_ops = {
@@ -51 +51 @@
 };
 
-static wchar_t map_lcase[] = {
+static char32_t map_lcase[] = {
         [KC_Q] = 'q',
         [KC_W] = 'w',
@@ -82 +82 @@
 };
 
-static wchar_t map_ucase[] = {
+static char32_t map_ucase[] = {
         [KC_Q] = 'Q',
         [KC_W] = 'W',
@@ -113 +113 @@
 };
 
-static wchar_t map_not_shifted[] = {
+static char32_t map_not_shifted[] = {
         [KC_BACKTICK] = '`',
 
@@ -142 +142 @@
 };
 
-static wchar_t map_shifted[] = {
+static char32_t map_shifted[] = {
         [KC_BACKTICK] = '~',
 
@@ -171 +171 @@
 };
 
-static wchar_t map_neutral[] = {
+static char32_t map_neutral[] = {
         [KC_BACKSPACE] = '\b',
         [KC_TAB] = '\t',
@@ -184 +184 @@
 };
 
-static wchar_t map_numeric[] = {
+static char32_t map_numeric[] = {
         [KC_N7] = '7',
         [KC_N8] = '8',
@@ -199 +199 @@
 };
 
-static wchar_t translate(unsigned int key, wchar_t *map, size_t map_length)
+static char32_t translate(unsigned int key, char32_t *map, size_t map_length)
 {
         if (key >= map_length)
@@ -215 +215 @@
 }
 
-static wchar_t us_qwerty_parse_ev(layout_t *state, kbd_event_t *ev)
-{
-        wchar_t c;
+static char32_t us_qwerty_parse_ev(layout_t *state, kbd_event_t *ev)
+{
+        char32_t c;
 
         /* Produce no characters when Ctrl or Alt is pressed. */
@@ -223 +223 @@
                 return 0;
 
-        c = translate(ev->key, map_neutral, sizeof(map_neutral) / sizeof(wchar_t));
+        c = translate(ev->key, map_neutral, sizeof(map_neutral) / sizeof(char32_t));
         if (c != 0)
                 return c;
 
         if (((ev->mods & KM_SHIFT) != 0) ^ ((ev->mods & KM_CAPS_LOCK) != 0))
-                c = translate(ev->key, map_ucase, sizeof(map_ucase) / sizeof(wchar_t));
+                c = translate(ev->key, map_ucase, sizeof(map_ucase) / sizeof(char32_t));
         else
-                c = translate(ev->key, map_lcase, sizeof(map_lcase) / sizeof(wchar_t));
+                c = translate(ev->key, map_lcase, sizeof(map_lcase) / sizeof(char32_t));
 
         if (c != 0)
@@ -236 +236 @@
 
         if ((ev->mods & KM_SHIFT) != 0)
-                c = translate(ev->key, map_shifted, sizeof(map_shifted) / sizeof(wchar_t));
+                c = translate(ev->key, map_shifted, sizeof(map_shifted) / sizeof(char32_t));
         else
-                c = translate(ev->key, map_not_shifted, sizeof(map_not_shifted) / sizeof(wchar_t));
+                c = translate(ev->key, map_not_shifted, sizeof(map_not_shifted) / sizeof(char32_t));
 
         if (c != 0)
@@ -244 +244 @@
 
         if ((ev->mods & KM_NUM_LOCK) != 0)
-                c = translate(ev->key, map_numeric, sizeof(map_numeric) / sizeof(wchar_t));
+                c = translate(ev->key, map_numeric, sizeof(map_numeric) / sizeof(char32_t));
         else
                 c = 0;