Man pages matching name extract_font_range in section 3alleg4:

extract_font_range.3alleg4.en	debian 10 / allegro4-doc
extract_font_range.3alleg4.en	debian 11 / allegro4-doc
extract_font_range.3alleg4.en	debian 12 / allegro4-doc
extract_font_range.3alleg4.en	debian 13 / allegro4-doc