Added c_lua_converge

c_lua_converge/.gitignore

@@ -0,0 +1 @@
+test

c_lua_converge/Makefile

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+#OBJS specifies which files to compile as part of the project
+OBJS = main.c
+
+#CC specifies which compiler to use
+CC = clang
+
+#COMPILER_FLAGS specifies the additional compilation options we're using
+# -w suppress all warnings
+COMPILER_FLAGS = -Wall
+
+#LINKER_FLAGS specifies the libraries we're linking against
+LINKER_FLAGS = -llua
+
+#OBJ_NAME specifies the name of our executable
+OBJ_NAME= test
+
+#This is the target that compiles our executable
+all	:	$(OBJS)
+	$(CC) $(OBJS) $(COMPILER_FLAGS) $(LINKER_FLAGS) -o $(OBJ_NAME)
+clean :
+	rm test
+

c_lua_converge/fake.txt

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+width = "My Width"
+height = "My Height"

c_lua_converge/main.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <lua.h>
+#include <lauxlib.h>
+#include <lualib.h>
+
+void load(char *filename, char *width, char *height);
+void error (lua_State *L, const char *fmt, ...);
+
+int main (void) {
+	char width[100];
+	char height[100];
+	char *w = width;
+	char *h = height;
+	load("fake.txt", w, h);
+	printf("Height: %s Width: %s\n",height, width);
+  return 0;
+}
+
+void load(char *filename, char  *width, char *height){
+
+	lua_State *L = luaL_newstate();
+	luaL_openlibs(L);
+
+	if (luaL_loadfile(L, filename) || lua_pcall(L, 0, 0, 0))
+		error(L, "cannot run configuration file: %s",
+				lua_tostring(L, -1));
+
+	lua_getglobal(L, "width");
+	lua_getglobal(L, "height");
+	
+	strcpy(height, lua_tostring(L, -1));
+	strcpy(width, lua_tostring(L, -2));
+	
+	lua_close(L);
+}
+
+void error (lua_State *L, const char *fmt, ...) {
+  va_list argp;
+  va_start(argp, fmt);
+  vfprintf(stderr,fmt, argp);
+  va_end(argp);
+  lua_close(L);
+  exit(EXIT_FAILURE);
+}