Lua 5.1.4: lzio.h
L0001
L0006
L0007
L0008 #ifndef lzio_h
L0009 #define lzio_h
L0010
L0011 #include "lua.h"
L0012
L0013 #include "lmem.h"
L0014
L0015
L0016 #define EOZ (-1) /* end of stream */
L0017
L0018 typedef struct Zio ZIO;
L0019
L0020 #define char2int(c) cast(int, cast(unsigned char, (c)))
L0021
L0022 #define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z))
L0023
L0024 typedef struct Mbuffer {
L0025 char *buffer;
L0026 size_t n;
L0027 size_t buffsize;
L0028 } Mbuffer;
L0029
L0030 #define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
L0031
L0032 #define luaZ_buffer(buff) ((buff)->buffer)
L0033 #define luaZ_sizebuffer(buff) ((buff)->buffsize)
L0034 #define luaZ_bufflen(buff) ((buff)->n)
L0035
L0036 #define luaZ_resetbuffer(buff) ((buff)->n = 0)
L0037
L0038
L0039 #define luaZ_resizebuffer(L, buff, size) \
L0040 (luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \
L0041 (buff)->buffsize = size)
L0042
L0043 #define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0)
L0044
L0045
L0046 LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
L0047 LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
L0048 void *data);
L0049 LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n);
L0050 LUAI_FUNC int luaZ_lookahead (ZIO *z);
L0051
L0052
L0053
L0054
L0055
L0056 struct Zio {
L0057 size_t n;
L0058 const char *p;
L0059 lua_Reader reader;
L0060 void* data;
L0061 lua_State *L;
L0062 };
L0063
L0064
L0065 LUAI_FUNC int luaZ_fill (ZIO *z);
L0066
L0067 #endif
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