111 static size_t optsize (lua_State *L, char opt, const char **fmt) {  in optsize()  argument
112   switch (opt) {  in optsize()
137 static int gettoalign (size_t len, Header *h, int opt, size_t size) {  in gettoalign()  argument
138   if (size == 0 || opt == 'c') return 0;  in gettoalign()
148 static void controloptions (lua_State *L, int opt, const char **fmt,  in controloptions()  argument
150   switch (opt) {  in controloptions()
162       const char *msg = lua_pushfstring(L, "invalid format option '%c'", opt);  in controloptions()
218     int opt = *fmt++;  in b_pack()  local
219     size_t size = optsize(L, opt, &fmt);  in b_pack()
220     int toalign = gettoalign(totalsize, &h, opt, size);  in b_pack()
223     switch (opt) {  in b_pack()
251         if (opt == 's') {  in b_pack()
257       default: controloptions(L, opt, &fmt, &h);  in b_pack()
302     int opt = *fmt++;  in b_unpack()  local
303     size_t size = optsize(L, opt, &fmt);  in b_unpack()
304     pos += gettoalign(pos, &h, opt, size);  in b_unpack()
307     switch (opt) {  in b_unpack()
310         int issigned = islower(opt);  in b_unpack()
351       default: controloptions(L, opt, &fmt, &h);  in b_unpack()
366     int opt = *fmt++;  in b_size()  local
367     size_t size = optsize(L, opt, &fmt);  in b_size()
368     pos += gettoalign(pos, &h, opt, size);  in b_size()
369     if (opt == 's')  in b_size()
371     else if (opt == 'c' && size == 0)  in b_size()
373     if (!isalnum(opt))  in b_size()
374       controloptions(L, opt, &fmt, &h);  in b_size()