Initial commit

engines/grim/lua/llex.h

@@ -0,0 +1,40 @@
+/*
+** Lexical Analizer
+** See Copyright Notice in lua.h
+*/
+
+#ifndef GRIM_LLEX_H
+#define GRIM_LLEX_H
+
+#include "engines/grim/lua/lobject.h"
+#include "engines/grim/lua/lzio.h"
+
+namespace Grim {
+
+#define MAX_IFS 5
+
+// "ifstate" keeps the state of each nested $if the lexical is dealing with.
+
+struct ifState {
+	int32 elsepart;  // true if its in the $else part
+	int32 condition;  // true if $if condition is true
+	int32 skip;  // true if part must be skipped
+};
+
+typedef struct LexState {
+	int32 current;  // look ahead character
+	zio *lex_z;  // input stream
+	int32 linenumber;  // input line counter
+	int linelasttoken;  /* line where last token was read */
+	int lastline;  /* last line wherein a SETLINE was generated */
+	int32 iflevel;  // level of nested $if's (for lexical analysis)
+	ifState ifstate[MAX_IFS];
+} LexState;
+
+void luaX_init();
+void luaX_setinput(ZIO *z);
+char *luaX_lasttoken();
+
+} // end of namespace Grim
+
+#endif