twn_skybox.c

src/twn_util.c

@@ -253,3 +253,20 @@ bool repeat_ftimer(float *value, float at) {
     }
     return false;
 }
+
+/* TODO: handle utf8 */
+char *expand_asterisk(const char *mask, const char *to) {
+    const char *offset = SDL_strchr(mask, '*');
+    if (!offset) {
+        CRY("Invalid path", "Asterisk should be given.");
+        return NULL;
+    }
+    size_t const mask_len = SDL_strlen(mask);
+    size_t const to_len = SDL_strlen(to);
+    char *str = SDL_malloc(mask_len + to_len); /* NULL included, replacing the original asterisk */
+    SDL_memcpy(str, mask, offset - mask);
+    SDL_memcpy(str + (offset - mask), to, to_len);
+    SDL_memcpy(str + (offset - mask) + to_len, offset + 1, mask_len - (offset - mask));
+    str[mask_len + to_len] = '\0';
+    return str;
+}