AppPkg: Add the Lua interpreter and library.

StdLib: Add support and include files for Lua.

The sources for the Lua standalone interpreter, as well as its library, have been added to AppPkg/Applications/Lua.  The Lua library, LuaLib, can be used to embed Lua into new applications.

The Lua header files, needed for both building and embedding, are located in StdLib/Include/Lua.  The original versions of these header files, in the source directory, have been converted into stubs that reference the include files in StdLib.  This allows us to keep the Lua sources as close to the distributed version as possible.

Documentation is contained in the Lua/doc directory.  Further information is available at www.lua.org.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed Off by:  Bruce Maynard <Bruce.Maynard@Emulex.Com>
Reviewed by:    Daryl McDaniel <daryl.mcdaniel@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16313 6f19259b-4bc3-4df7-8a09-765794883524

AppPkg/Applications/Lua/src/lstring.h

@@ -0,0 +1,46 @@
+/*
+** $Id: lstring.h,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $
+** String table (keep all strings handled by Lua)
+** See Copyright Notice in lua.h
+*/
+
+#ifndef lstring_h
+#define lstring_h
+
+#include "lgc.h"
+#include "lobject.h"
+#include "lstate.h"
+
+
+#define sizestring(s)	(sizeof(union TString)+((s)->len+1)*sizeof(char))
+
+#define sizeudata(u)	(sizeof(union Udata)+(u)->len)
+
+#define luaS_newliteral(L, s)	(luaS_newlstr(L, "" s, \
+                                 (sizeof(s)/sizeof(char))-1))
+
+#define luaS_fix(s)	l_setbit((s)->tsv.marked, FIXEDBIT)
+
+
+/*
+** test whether a string is a reserved word
+*/
+#define isreserved(s)	((s)->tsv.tt == LUA_TSHRSTR && (s)->tsv.extra > 0)
+
+
+/*
+** equality for short strings, which are always internalized
+*/
+#define eqshrstr(a,b)	check_exp((a)->tsv.tt == LUA_TSHRSTR, (a) == (b))
+
+
+LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
+LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
+LUAI_FUNC int luaS_eqstr (TString *a, TString *b);
+LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
+LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e);
+LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
+LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
+
+
+#endif