bom_prefix_len   4874 io.c               return len > bom_prefix_len && STRNCASECMP(name, bom_prefix, bom_prefix_len) == 0;
bom_prefix_len   5089 io.c           	estr += bom_prefix_len;
bom_prefix_len   5090 io.c           	len -= bom_prefix_len;