static int nsfont_text_extents (struct font *font, unsigned int *code,
int nglyphs, struct font_metrics *metrics);
static int nsfont_draw (struct glyph_string *s, int from, int to, int x, int y,
static int nsfont_text_extents (struct font *font, unsigned int *code,
int nglyphs, struct font_metrics *metrics);
static int nsfont_draw (struct glyph_string *s, int from, int to, int x, int y,