29   z->n = size - 1;  in luaZ_fill()
36   if (z->n == 0) {  in luaZ_lookahead()
40       z->n++;  /* luaZ_fill removed first byte; put back it */  in luaZ_lookahead()
52   z->n = 0;  in luaZ_init()
58 size_t luaZ_read (ZIO *z, void *b, size_t n) {  in luaZ_read()  argument
59   while (n) {  in luaZ_read()
62       return n;  /* return number of missing bytes */  in luaZ_read()
63     m = (n <= z->n) ? n : z->n;  /* min. between n and z->n */  in luaZ_read()
65     z->n -= m;  in luaZ_read()
68     n -= m;  in luaZ_read()
74 char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n) {  in luaZ_openspace()  argument
75   if (n > buff->buffsize) {  in luaZ_openspace()
76     if (n < LUA_MINBUFFER) n = LUA_MINBUFFER;  in luaZ_openspace()
77     luaZ_resizebuffer(L, buff, n);  in luaZ_openspace()