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--- ivanvoras:bsdlua [2011/05/14 03:17] – IvanVoras
+++ ivanvoras:bsdlua [2011/05/29 22:50] (current) – IvanVoras
@@ Line 1: / Line 1: @@
 The BSDCan 2011 slides on BSDLUA are here: {{ivanvoras/bsdlua/bsdlua.pdf?linkonly|bsdlua.pdf}} and also here: http://people.freebsd.org/~ivoras/slides/bsdlua2011.pdf .
+The current (may be temporary) Mercurial (hg) repository for BSDLUA is available at http://cosmos.boldlygoingnowhere.org:81/~ivoras/hg/bsdlua .
+You can make a local clone of the repository with:
+<code>
+hg clone http://cosmos.boldlygoingnowhere.org:81/~ivoras/hg/bsdlua
+</code>
+Please send patches via ''%%hg export%%''!
+===== Tutorial for embedders =====
+Please read the following documentation:
+  * http://www.lua.org/ - The main Lua site
+  * http://pgl.yoyo.org/luai/i/3.7+Functions+and+Types - C functions and types used to access Lua from C
+  * http://www.lua.org/manual/5.1/#index - all else on Lua
+  * http://lua-users.org/wiki/LuaDirectory - some Lua Wiki resources
+  * http://www.codeproject.com/KB/cpp/luaincpp.aspx - Another tutorial on embedding
+The newest version of this script is committed in the BSDLUA hg repository in the ''%%bsdlua/tests/scripting%%'' directory.
+An example program (note that this program and its Makefile require that the BSDLUA is installed, i.e. that the ''%%make install%%'' target was executed):
+<code>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <assert.h>
+#include <bsdlua.h>
+#include <bsdlauxlib.h>
+lua_State *L;
+static int
+greeting(lua_State *L)
+{
+        /* This function accepts one string argument and returns no values */
+        int nargs = lua_gettop(L);
+        const char *arg;
+        assert(nargs == 1);
+        arg = lua_tostring(L, 1);
+        printf("Hello from C: %s\n", arg);
+        /* lua_pushstring(L, "blah blah blah"); */
+        /* if the above line were uncommented, the function would return "1" */
+        return 0;
+}
+int
+main()
+{
+        L = lua_open();
+        luaL_openlibs(L);
+        luaL_dostring(L, "print(\"Hello from lua\")");
+        lua_register(L, "greeting", greeting);
+        luaL_dostring(L, "greeting(\"cromulent\")");
+        /* Call BSDLUA */
+        luaL_dostring(L, "print(\"My PID is: \" .. posix.getpid())");
+}
+</code>
+Makefile:
+<code>
+all: luainc
+clean:
+        rm -f *.o *.core luainc
+luainc: luainc.o
+        gcc -o luainc luainc.o -lbsdlua -lm -lcurses -lpanel
+luainc.o: luainc.c
+        gcc -O2 -o luainc.o -c luainc.c
+</code>