diff options
Diffstat (limited to 'lib/lua/includes/lzio.h')
-rw-r--r-- | lib/lua/includes/lzio.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/lua/includes/lzio.h b/lib/lua/includes/lzio.h new file mode 100644 index 0000000..bf98c17 --- /dev/null +++ b/lib/lua/includes/lzio.h @@ -0,0 +1,64 @@ +/*
+** $Id: lzio.h,v 1.1 2003-11-06 11:56:07 pixel Exp $
+** Buffered streams
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lzio_h
+#define lzio_h
+
+#include "lua.h"
+
+
+#define EOZ (-1) /* end of stream */
+
+typedef struct Zio ZIO;
+
+
+#define char2int(c) cast(int, cast(unsigned char, (c)))
+
+#define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z))
+
+#define zname(z) ((z)->name)
+
+void luaZ_init (ZIO *z, lua_Chunkreader reader, void *data, const char *name);
+size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */
+int luaZ_lookahead (ZIO *z);
+
+
+
+typedef struct Mbuffer {
+ char *buffer;
+ size_t buffsize;
+} Mbuffer;
+
+
+char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
+
+#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
+
+#define luaZ_sizebuffer(buff) ((buff)->buffsize)
+#define luaZ_buffer(buff) ((buff)->buffer)
+
+#define luaZ_resizebuffer(L, buff, size) \
+ (luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \
+ (buff)->buffsize = size)
+
+#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0)
+
+
+/* --------- Private Part ------------------ */
+
+struct Zio {
+ size_t n; /* bytes still unread */
+ const char *p; /* current position in buffer */
+ lua_Chunkreader reader;
+ void* data; /* additional data */
+ const char *name;
+};
+
+
+int luaZ_fill (ZIO *z);
+
+#endif
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