53 	struct source		*readstack;  member
257 	bmachine.readstack = calloc(sizeof(struct source),  in init_bmachine()
259 	if (bmachine.readstack == NULL)  in init_bmachine()
278 	bmachine.readstack[0] = *src;  in reset_bmachine()
284 	struct source *src = &bmachine.readstack[bmachine.readsp];  in readch()
292 	struct source *src = &bmachine.readstack[bmachine.readsp];  in unreadch()
300 	struct source *src = &bmachine.readstack[bmachine.readsp];  in readline()
308 	struct source *src = &bmachine.readstack[bmachine.readsp];  in src_free()
933 	push_string(read_string(&bmachine.readstack[bmachine.readsp]));  in push_line()
1644 			free(read_string(&bmachine.readstack[bmachine.readsp]));  in skip_until_mark()
1672 	push_number(readnumber(&bmachine.readstack[bmachine.readsp],  in parse_number()
1679 	int ch = bmachine.readstack[bmachine.readsp].lastchar;  in unknown()
1693 			src_setstring(&bmachine.readstack[bmachine.readsp], p);  in eval_string()
1701 		stack = realloc(bmachine.readstack, newsz *  in eval_string()
1706 		bmachine.readstack = stack;  in eval_string()
1708 	src_setstring(&bmachine.readstack[++bmachine.readsp], p);  in eval_string()