109 static size_t optsize (lua_State *L, char opt, const char **fmt) {  in optsize()  argument
110   switch (opt) {  in optsize()
135 static int gettoalign (size_t len, Header *h, int opt, size_t size) {  in gettoalign()  argument
136   if (size == 0 || opt == 'c') return 0;  in gettoalign()
146 static void controloptions (lua_State *L, int opt, const char **fmt,  in controloptions()  argument
148   switch (opt) {  in controloptions()
160       const char *msg = lua_pushfstring(L, "invalid format option '%c'", opt);  in controloptions()
216     int opt = *fmt++;  in b_pack()  local
217     size_t size = optsize(L, opt, &fmt);  in b_pack()
218     int toalign = gettoalign(totalsize, &h, opt, size);  in b_pack()
221     switch (opt) {  in b_pack()
249         if (opt == 's') {  in b_pack()
255       default: controloptions(L, opt, &fmt, &h);  in b_pack()
303     int opt = *fmt++;  in b_unpack()  local
304     size_t size = optsize(L, opt, &fmt);  in b_unpack()
305     pos += gettoalign(pos, &h, opt, size);  in b_unpack()
310     switch (opt) {  in b_unpack()
313         int issigned = islower(opt);  in b_unpack()
355       default: controloptions(L, opt, &fmt, &h);  in b_unpack()
370     int opt = *fmt++;  in b_size()  local
371     size_t size = optsize(L, opt, &fmt);  in b_size()
372     pos += gettoalign(pos, &h, opt, size);  in b_size()
373     if (opt == 's')  in b_size()
375     else if (opt == 'c' && size == 0)  in b_size()
377     if (!isalnum(opt))  in b_size()
378       controloptions(L, opt, &fmt, &h);  in b_size()