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[font-funcs-using] Treat empty string like nullptr

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This commit is contained in:
Behdad Esfahbod 2025-03-08 12:31:07 -07:00
parent 712a403bec
commit 5a12bf417b
1 changed files with 4 additions and 1 deletions
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5
src/hb-font.cc
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@ -2330,7 +2330,7 @@ static struct supported_font_funcs_t {
* Sets the font-functions structure to use for a font, based on the
* specified name.
*
* If @name is `NULL`, the first functioning font-functions are used.
* If @name is `NULL` or empty string, the first functioning font-functions are used.
*
* Return value: `true` if the font-functions was found and set, `false` otherwise
*
@ -2340,6 +2340,8 @@ hb_bool_t
hb_font_set_funcs_using (hb_font_t *font,
const char *name)
{
if (name && !*name) name = nullptr;
for (unsigned i = 0; i < ARRAY_LENGTH (supported_font_funcs); i++)
if (!name || strcmp (supported_font_funcs[i].name, name) == 0)
{
@ -2347,6 +2349,7 @@ hb_font_set_funcs_using (hb_font_t *font,
if (name || font->klass != hb_font_funcs_get_empty ())
return true;
}
return false;
}