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menu: use glib for extracting Unicode codepoints

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Alex Chernika 2026-05-07 23:51:59 +02:00
parent aa3ea3224a
commit f8796c97ba
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GPG key ID: 6029FAD8ABFB076A
1 changed files with 17 additions and 27 deletions
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44
src/menu/menu.c
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@ -133,42 +133,30 @@ validate(void)
}
}
/* Extract a single Unicode codepoint and convert it to lowercase */
static uint32_t
get_unicode_char(const char *first_byte, size_t *out_bytes)
get_unicode_char_lowercase(const char *first_byte, size_t *out_bytes)
{
if (!first_byte || first_byte[0] == '\0') {
*out_bytes = 0;
if (!first_byte || first_byte[0] == '\0' || !out_bytes) {
if (out_bytes) {
*out_bytes = 0;
}
return 0;
}
/* Temporarily set locale to UTF-8 */
locale_t utf8_locale = newlocale(LC_CTYPE_MASK, "C.UTF-8", (locale_t)0);
locale_t old_locale = (locale_t)0;
if (utf8_locale != (locale_t)0) {
old_locale = uselocale(utf8_locale);
}
gunichar codepoint = g_utf8_get_char_validated(first_byte, -1);
uint32_t result = 0;
char32_t codepoint = 0;
mbstate_t state = {0};
size_t bytes = mbrtoc32(&codepoint, first_byte, 4, &state);
if (bytes > 0 && bytes <= 4) {
*out_bytes = bytes;
result = (uint32_t)towlower((wint_t)codepoint);
} else {
if (codepoint == (gunichar)-1 || codepoint == (gunichar)-2) {
*out_bytes = 1;
result = (uint32_t)(unsigned char)first_byte[0];
return (uint32_t)(unsigned char)first_byte[0];
}
/* Restore previous locale */
if (utf8_locale != (locale_t)0) {
uselocale(old_locale);
freelocale(utf8_locale);
}
*out_bytes = (size_t)(g_utf8_next_char(first_byte) - first_byte);
return result;
return (uint32_t)g_unichar_tolower(codepoint);
}
/* Retrieve an accelerator from an item label, remove doubled underscores */
static void
item_parse_accelerator(struct menuitem *item, const char *text)
{
@ -190,11 +178,13 @@ item_parse_accelerator(struct menuitem *item, const char *text)
size_t bytes = 0;
if (!accel_ptr) {
/* Defaulting to the first char */
item->text = xstrdup(text);
item->accelerator = get_unicode_char(text, &bytes);
item->accelerator = get_unicode_char_lowercase(text, &bytes);
} else {
/* Set the accelerator and remove the preceding underscore */
item->use_markup = true;
item->accelerator = get_unicode_char(accel_ptr, &bytes);
item->accelerator = get_unicode_char_lowercase(accel_ptr, &bytes);
item->text = strdup_printf("%.*s<u>%.*s</u>%s",
/* Prefix length + prefix */
(int)(accel_ptr - 1 - text), text,
@ -1595,7 +1585,7 @@ menu_item_select_by_accelerator(uint32_t accelerator)
menu_process_item_selection(next_selection);
if (needs_exec && next_selection->submenu) {
/* Since we can't execute a submenu, enter it. */
/* Since we can't execute a submenu, enter it */
needs_exec = false;
menu_submenu_enter();
}