lua_Reader
typedef const char * (*lua_Reader) (lua_State *L, void *data, size_t *size);
The reader function used by lua_load
. Every time it needs another piece of the chunk, lua_load
calls the reader, passing along its data
parameter. The reader must return a pointer to a block of memory with a new piece of the chunk and set size
to the block size. The block must exist until the reader function is called again. To signal the end of the chunk, the reader must return NULL
or set size
to zero. The reader function may return pieces of any size greater than zero.
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