add support for local variable declared with attribute 'close' and 'const' for Lua 5.4.

1 files changed, 66 insertions, 0 deletions

diff --git a/src/lua/lzio.h b/src/lua/lzio.h
new file mode 100644
index 0000000..38f397f
--- /dev/null
+++ b/src/lua/lzio.h
@@ -0,0 +1,66 @@
+/*
+** $Id: lzio.h $
+** Buffered streams
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lzio_h
+#define lzio_h
+
+#include "lua.h"
+
+#include "lmem.h"
+
+
+#define EOZ     (-1)                    /* end of stream */
+
+typedef struct Zio ZIO;
+
+#define zgetc(z)  (((z)->n--)>0 ?  cast_uchar(*(z)->p++) : luaZ_fill(z))
+
+
+typedef struct Mbuffer {
+  char *buffer;
+  size_t n;
+  size_t buffsize;
+} Mbuffer;
+
+#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
+
+#define luaZ_buffer(buff)       ((buff)->buffer)
+#define luaZ_sizebuffer(buff)   ((buff)->buffsize)
+#define luaZ_bufflen(buff)      ((buff)->n)
+
+#define luaZ_buffremove(buff,i) ((buff)->n -= (i))
+#define luaZ_resetbuffer(buff) ((buff)->n = 0)
+
+
+#define luaZ_resizebuffer(L, buff, size) \
+        ((buff)->buffer = luaM_reallocvchar(L, (buff)->buffer, \
+                                (buff)->buffsize, size), \
+        (buff)->buffsize = size)
+
+#define luaZ_freebuffer(L, buff)        luaZ_resizebuffer(L, buff, 0)
+
+
+LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
+                                        void *data);
+LUAI_FUNC size_t luaZ_read (ZIO* z, void *b, size_t n); /* read next n bytes */
+
+
+
+/* --------- Private Part ------------------ */
+
+struct Zio {
+  size_t n;                     /* bytes still unread */
+  const char *p;                /* current position in buffer */
+  lua_Reader reader;            /* reader function */
+  void *data;                   /* additional data */
+  lua_State *L;                 /* Lua state (for reader) */
+};
+
+
+LUAI_FUNC int luaZ_fill (ZIO *z);
+
+#endif