From eca011188687bfacdfff221d8db190d817570599 Mon Sep 17 00:00:00 2001
From: Waldemar Celes <celes@tecgraf.puc-rio.br>
Date: Fri, 17 Dec 1993 16:53:41 -0200
Subject: LUA lexis description

---
 lua.lex | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 lua.lex

(limited to 'lua.lex')

diff --git a/lua.lex b/lua.lex
new file mode 100644
index 00000000..23a1d7b1
--- /dev/null
+++ b/lua.lex
@@ -0,0 +1,85 @@
+%{
+
+char *rcs_lualex = "$Id: $";
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "opcode.h"
+#include "hash.h"
+#include "inout.h"
+#include "table.h"
+#include "y.tab.h"
+
+#undef input
+#undef unput
+
+static Input input;
+static Unput unput;
+
+void lua_setinput (Input fn)
+{
+ input = fn;
+}
+
+void lua_setunput (Unput fn)
+{
+ unput = fn;
+}
+
+char *lua_lasttext (void)
+{
+ return yytext;
+}
+
+%}
+
+
+%%
+[ \t]*					;
+^"$debug"				{yylval.vInt = 1; return DEBUG;}
+^"$nodebug"				{yylval.vInt = 0; return DEBUG;}
+\n					lua_linenumber++;
+"--".*					;
+"local"					return LOCAL;
+"if"					return IF;
+"then"					return THEN;
+"else"					return ELSE;
+"elseif"				return ELSEIF;
+"while"					return WHILE;
+"do"					return DO;
+"repeat"				return REPEAT;
+"until"					return UNTIL;
+"function"				{
+                                         yylval.vWord = lua_nfile-1;
+                                         return FUNCTION;
+					}
+"end"					return END;
+"return" 				return RETURN;
+"local" 				return LOCAL;
+"nil"					return NIL;
+"and"					return AND;
+"or"					return OR;
+"not"					return NOT;
+"~="					return NE;
+"<="					return LE;
+">="					return GE;
+".."					return CONC;
+\"[^\"]*\" 			| 
+\'[^\']*\'			      {
+				       yylval.vWord = lua_findenclosedconstant (yytext);
+				       return STRING;
+				      }
+[0-9]+("."[0-9]*)?	|
+([0-9]+)?"."[0-9]+	|
+[0-9]+("."[0-9]*)?[dDeEgG][+-]?[0-9]+ |
+([0-9]+)?"."[0-9]+[dDeEgG][+-]?[0-9]+ {
+				        yylval.vFloat = atof(yytext);
+				        return NUMBER;
+				       }
+[a-zA-Z_][a-zA-Z0-9_]*  	       {
+					yylval.vWord = lua_findsymbol (yytext);
+					return NAME;
+				       }
+.					return  *yytext;
+
-- 
cgit v1.2.3-55-g6feb