"!00" evaluated as false, which is incorrect. Fixing.

Reported (though the reporter did not understand he was reporting a bug) on the asterisk-users list:
http://lists.digium.com/pipermail/asterisk-users/2010-October/255505.html


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@293194 f38db490-d61c-443f-a65b-d21fe96a405b

3 files changed, 369 insertions, 242 deletions

diff --git a/main/ast_expr2.c b/main/ast_expr2.c
index 7c7897340..280b2c32f 100644
--- a/main/ast_expr2.c
+++ b/main/ast_expr2.c
@@ -1,24 +1,23 @@
-/* A Bison parser, made by GNU Bison 2.3.  */
 
-/* Skeleton implementation for Bison's Yacc-like parsers in C
+/* A Bison parser, made by GNU Bison 2.4.1.  */
 
-   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+   
+      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
+   
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
-
+   
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* As a special exception, you may create a larger work that contains
    part or all of the Bison parser skeleton and distribute that work
@@ -29,7 +28,7 @@
    special exception, which will cause the skeleton and the resulting
    Bison output files to be licensed under the GNU General Public
    License without this special exception.
-
+   
    This special exception was added by the Free Software Foundation in
    version 2.2 of Bison.  */
 
@@ -47,7 +46,7 @@
 #define YYBISON 1
 
 /* Bison version.  */
-#define YYBISON_VERSION "2.3"
+#define YYBISON_VERSION "2.4.1"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
@@ -55,75 +54,28 @@
 /* Pure parsers.  */
 #define YYPURE 1
 
+/* Push parsers.  */
+#define YYPUSH 0
+
+/* Pull parsers.  */
+#define YYPULL 1
+
 /* Using locations.  */
 #define YYLSP_NEEDED 1
 
 /* Substitute the variable and function names.  */
-#define yyparse ast_yyparse
-#define yylex   ast_yylex
-#define yyerror ast_yyerror
-#define yylval  ast_yylval
-#define yychar  ast_yychar
-#define yydebug ast_yydebug
-#define yynerrs ast_yynerrs
-#define yylloc ast_yylloc
-
-/* Tokens.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-   /* Put the tokens into the symbol table, so that GDB and other debuggers
-      know about them.  */
-   enum yytokentype {
-     TOK_COLONCOLON = 258,
-     TOK_COND = 259,
-     TOK_OR = 260,
-     TOK_AND = 261,
-     TOK_NE = 262,
-     TOK_LE = 263,
-     TOK_GE = 264,
-     TOK_LT = 265,
-     TOK_GT = 266,
-     TOK_EQ = 267,
-     TOK_MINUS = 268,
-     TOK_PLUS = 269,
-     TOK_MOD = 270,
-     TOK_DIV = 271,
-     TOK_MULT = 272,
-     TOK_COMPL = 273,
-     TOK_EQTILDE = 274,
-     TOK_COLON = 275,
-     TOK_LP = 276,
-     TOK_RP = 277,
-     TOKEN = 278
-   };
-#endif
-/* Tokens.  */
-#define TOK_COLONCOLON 258
-#define TOK_COND 259
-#define TOK_OR 260
-#define TOK_AND 261
-#define TOK_NE 262
-#define TOK_LE 263
-#define TOK_GE 264
-#define TOK_LT 265
-#define TOK_GT 266
-#define TOK_EQ 267
-#define TOK_MINUS 268
-#define TOK_PLUS 269
-#define TOK_MOD 270
-#define TOK_DIV 271
-#define TOK_MULT 272
-#define TOK_COMPL 273
-#define TOK_EQTILDE 274
-#define TOK_COLON 275
-#define TOK_LP 276
-#define TOK_RP 277
-#define TOKEN 278
-
-
-
+#define yyparse         ast_yyparse
+#define yylex           ast_yylex
+#define yyerror         ast_yyerror
+#define yylval          ast_yylval
+#define yychar          ast_yychar
+#define yydebug         ast_yydebug
+#define yynerrs         ast_yynerrs
+#define yylloc          ast_yylloc
 
 /* Copy the first part of user declarations.  */
+
+/* Line 189 of yacc.c  */
 #line 1 "ast_expr2.y"
 
 /* Written by Pace Willisson (pace@blitz.com) 
@@ -264,6 +216,9 @@ int		ast_yyerror(const char *,YYLTYPE *, struct parse_io *);
 #define DESTROY(x) {if((x)->type == AST_EXPR_numeric_string || (x)->type == AST_EXPR_string) free((x)->u.s); (x)->u.s = 0; free(x);}
 
 
+/* Line 189 of yacc.c  */
+#line 221 "ast_expr2.c"
+
 /* Enabling traces.  */
 #ifndef YYDEBUG
 # define YYDEBUG 0
@@ -282,18 +237,56 @@ int		ast_yyerror(const char *,YYLTYPE *, struct parse_io *);
 # define YYTOKEN_TABLE 0
 #endif
 
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     TOK_COLONCOLON = 258,
+     TOK_COND = 259,
+     TOK_OR = 260,
+     TOK_AND = 261,
+     TOK_NE = 262,
+     TOK_LE = 263,
+     TOK_GE = 264,
+     TOK_LT = 265,
+     TOK_GT = 266,
+     TOK_EQ = 267,
+     TOK_MINUS = 268,
+     TOK_PLUS = 269,
+     TOK_MOD = 270,
+     TOK_DIV = 271,
+     TOK_MULT = 272,
+     TOK_COMPL = 273,
+     TOK_EQTILDE = 274,
+     TOK_COLON = 275,
+     TOK_LP = 276,
+     TOK_RP = 277,
+     TOKEN = 278
+   };
+#endif
+
+
+
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 typedef union YYSTYPE
-#line 147 "ast_expr2.y"
 {
+
+/* Line 214 of yacc.c  */
+#line 147 "ast_expr2.y"
+
 	struct val *val;
-}
-/* Line 187 of yacc.c.  */
-#line 293 "ast_expr2.c"
-	YYSTYPE;
+
+
+
+/* Line 214 of yacc.c  */
+#line 286 "ast_expr2.c"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
 #endif
 
 #if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
@@ -311,13 +304,15 @@ typedef struct YYLTYPE
 
 
 /* Copy the second part of user declarations.  */
+
+/* Line 264 of yacc.c  */
 #line 151 "ast_expr2.y"
 
 extern int		ast_yylex __P((YYSTYPE *, YYLTYPE *, yyscan_t));
 
 
-/* Line 216 of yacc.c.  */
-#line 321 "ast_expr2.c"
+/* Line 264 of yacc.c  */
+#line 316 "ast_expr2.c"
 
 #ifdef short
 # undef short
@@ -392,14 +387,14 @@ typedef short int yytype_int16;
 #if (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 static int
-YYID (int i)
+YYID (int yyi)
 #else
 static int
-YYID (i)
-    int i;
+YYID (yyi)
+    int yyi;
 #endif
 {
-  return i;
+  return yyi;
 }
 #endif
 
@@ -481,9 +476,9 @@ void free (void *); /* INFRINGES ON USER NAME SPACE */
 /* A type that is properly aligned for any stack member.  */
 union yyalloc
 {
-  yytype_int16 yyss;
-  YYSTYPE yyvs;
-    YYLTYPE yyls;
+  yytype_int16 yyss_alloc;
+  YYSTYPE yyvs_alloc;
+  YYLTYPE yyls_alloc;
 };
 
 /* The size of the maximum gap between one aligned stack and the next.  */
@@ -518,12 +513,12 @@ union yyalloc
    elements in the stack, and YYPTR gives the new location of the
    stack.  Advance YYPTR to a properly aligned location for the next
    stack.  */
-# define YYSTACK_RELOCATE(Stack)					\
+# define YYSTACK_RELOCATE(Stack_alloc, Stack)				\
     do									\
       {									\
 	YYSIZE_T yynewbytes;						\
-	YYCOPY (&yyptr->Stack, Stack, yysize);				\
-	Stack = &yyptr->Stack;						\
+	YYCOPY (&yyptr->Stack_alloc, Stack, yysize);			\
+	Stack = &yyptr->Stack_alloc;					\
 	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
 	yyptr += yynewbytes / sizeof (*yyptr);				\
       }									\
@@ -935,17 +930,20 @@ yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp)
 #if (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 static void
-yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
 #else
 static void
-yy_stack_print (bottom, top)
-    yytype_int16 *bottom;
-    yytype_int16 *top;
+yy_stack_print (yybottom, yytop)
+    yytype_int16 *yybottom;
+    yytype_int16 *yytop;
 #endif
 {
   YYFPRINTF (stderr, "Stack now");
-  for (; bottom <= top; ++bottom)
-    YYFPRINTF (stderr, " %d", *bottom);
+  for (; yybottom <= yytop; yybottom++)
+    {
+      int yybot = *yybottom;
+      YYFPRINTF (stderr, " %d", yybot);
+    }
   YYFPRINTF (stderr, "\n");
 }
 
@@ -980,11 +978,11 @@ yy_reduce_print (yyvsp, yylsp, yyrule)
   /* The symbols being reduced.  */
   for (yyi = 0; yyi < yynrhs; yyi++)
     {
-      fprintf (stderr, "   $%d = ", yyi + 1);
+      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
       yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
 		       &(yyvsp[(yyi + 1) - (yynrhs)])
 		       , &(yylsp[(yyi + 1) - (yynrhs)])		       );
-      fprintf (stderr, "\n");
+      YYFPRINTF (stderr, "\n");
     }
 }
 
@@ -1262,124 +1260,210 @@ yydestruct (yymsg, yytype, yyvaluep, yylocationp)
   switch (yytype)
     {
       case 3: /* "TOK_COLONCOLON" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1268 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1270 "ast_expr2.c"
 	break;
       case 4: /* "TOK_COND" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1273 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1279 "ast_expr2.c"
 	break;
       case 5: /* "TOK_OR" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1278 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1288 "ast_expr2.c"
 	break;
       case 6: /* "TOK_AND" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1283 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1297 "ast_expr2.c"
 	break;
       case 7: /* "TOK_NE" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1288 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1306 "ast_expr2.c"
 	break;
       case 8: /* "TOK_LE" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1293 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1315 "ast_expr2.c"
 	break;
       case 9: /* "TOK_GE" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1298 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1324 "ast_expr2.c"
 	break;
       case 10: /* "TOK_LT" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1303 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1333 "ast_expr2.c"
 	break;
       case 11: /* "TOK_GT" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1308 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1342 "ast_expr2.c"
 	break;
       case 12: /* "TOK_EQ" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1313 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1351 "ast_expr2.c"
 	break;
       case 13: /* "TOK_MINUS" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1318 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1360 "ast_expr2.c"
 	break;
       case 14: /* "TOK_PLUS" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1323 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1369 "ast_expr2.c"
 	break;
       case 15: /* "TOK_MOD" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1328 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1378 "ast_expr2.c"
 	break;
       case 16: /* "TOK_DIV" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1333 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1387 "ast_expr2.c"
 	break;
       case 17: /* "TOK_MULT" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1338 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1396 "ast_expr2.c"
 	break;
       case 18: /* "TOK_COMPL" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1343 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1405 "ast_expr2.c"
 	break;
       case 19: /* "TOK_EQTILDE" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1348 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1414 "ast_expr2.c"
 	break;
       case 20: /* "TOK_COLON" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1353 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1423 "ast_expr2.c"
 	break;
       case 21: /* "TOK_LP" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1358 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1432 "ast_expr2.c"
 	break;
       case 22: /* "TOK_RP" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1363 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1441 "ast_expr2.c"
 	break;
       case 23: /* "TOKEN" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1368 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1450 "ast_expr2.c"
 	break;
       case 26: /* "expr" */
+
+/* Line 1000 of yacc.c  */
 #line 169 "ast_expr2.y"
 	{  free_value((yyvaluep->val)); };
-#line 1373 "ast_expr2.c"
+
+/* Line 1000 of yacc.c  */
+#line 1459 "ast_expr2.c"
 	break;
 
       default:
 	break;
     }
 }
-
 
 /* Prevent warnings from -Wmissing-prototypes.  */
-
 #ifdef YYPARSE_PARAM
 #if defined __STDC__ || defined __cplusplus
 int yyparse (void *YYPARSE_PARAM);
@@ -1398,10 +1482,9 @@ int yyparse ();
 
 
 
-
-/*----------.
-| yyparse.  |
-`----------*/
+/*-------------------------.
+| yyparse or yypush_parse.  |
+`-------------------------*/
 
 #ifdef YYPARSE_PARAM
 #if (defined __STDC__ || defined __C99__FUNC__ \
@@ -1425,88 +1508,97 @@ yyparse ()
 #endif
 #endif
 {
-  /* The look-ahead symbol.  */
+/* The lookahead symbol.  */
 int yychar;
 
-/* The semantic value of the look-ahead symbol.  */
+/* The semantic value of the lookahead symbol.  */
 YYSTYPE yylval;
 
-/* Number of syntax errors so far.  */
-int yynerrs;
-/* Location data for the look-ahead symbol.  */
+/* Location data for the lookahead symbol.  */
 YYLTYPE yylloc;
 
-  int yystate;
-  int yyn;
-  int yyresult;
-  /* Number of tokens to shift before error messages enabled.  */
-  int yyerrstatus;
-  /* Look-ahead token as an internal (translated) token number.  */
-  int yytoken = 0;
-#if YYERROR_VERBOSE
-  /* Buffer for error messages, and its allocated size.  */
-  char yymsgbuf[128];
-  char *yymsg = yymsgbuf;
-  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
-#endif
+    /* Number of syntax errors so far.  */
+    int yynerrs;
 
-  /* Three stacks and their tools:
-     `yyss': related to states,
-     `yyvs': related to semantic values,
-     `yyls': related to locations.
+    int yystate;
+    /* Number of tokens to shift before error messages enabled.  */
+    int yyerrstatus;
 
-     Refer to the stacks thru separate pointers, to allow yyoverflow
-     to reallocate them elsewhere.  */
+    /* The stacks and their tools:
+       `yyss': related to states.
+       `yyvs': related to semantic values.
+       `yyls': related to locations.
 
-  /* The state stack.  */
-  yytype_int16 yyssa[YYINITDEPTH];
-  yytype_int16 *yyss = yyssa;
-  yytype_int16 *yyssp;
+       Refer to the stacks thru separate pointers, to allow yyoverflow
+       to reallocate them elsewhere.  */
 
-  /* The semantic value stack.  */
-  YYSTYPE yyvsa[YYINITDEPTH];
-  YYSTYPE *yyvs = yyvsa;
-  YYSTYPE *yyvsp;
+    /* The state stack.  */
+    yytype_int16 yyssa[YYINITDEPTH];
+    yytype_int16 *yyss;
+    yytype_int16 *yyssp;
 
-  /* The location stack.  */
-  YYLTYPE yylsa[YYINITDEPTH];
-  YYLTYPE *yyls = yylsa;
-  YYLTYPE *yylsp;
-  /* The locations where the error started and ended.  */
-  YYLTYPE yyerror_range[2];
+    /* The semantic value stack.  */
+    YYSTYPE yyvsa[YYINITDEPTH];
+    YYSTYPE *yyvs;
+    YYSTYPE *yyvsp;
 
-#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+    /* The location stack.  */
+    YYLTYPE yylsa[YYINITDEPTH];
+    YYLTYPE *yyls;
+    YYLTYPE *yylsp;
 
-  YYSIZE_T yystacksize = YYINITDEPTH;
+    /* The locations where the error started and ended.  */
+    YYLTYPE yyerror_range[2];
 
+    YYSIZE_T yystacksize;
+
+  int yyn;
+  int yyresult;
+  /* Lookahead token as an internal (translated) token number.  */
+  int yytoken;
   /* The variables used to return semantic value and location from the
      action routines.  */
   YYSTYPE yyval;
   YYLTYPE yyloc;
 
+#if YYERROR_VERBOSE
+  /* Buffer for error messages, and its allocated size.  */
+  char yymsgbuf[128];
+  char *yymsg = yymsgbuf;
+  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
   /* The number of symbols on the RHS of the reduced rule.
      Keep to zero when no symbol should be popped.  */
   int yylen = 0;
 
+  yytoken = 0;
+  yyss = yyssa;
+  yyvs = yyvsa;
+  yyls = yylsa;
+  yystacksize = YYINITDEPTH;
+
   YYDPRINTF ((stderr, "Starting parse\n"));
 
   yystate = 0;
   yyerrstatus = 0;
   yynerrs = 0;
-  yychar = YYEMPTY;		/* Cause a token to be read.  */
+  yychar = YYEMPTY; /* Cause a token to be read.  */
 
   /* Initialize stack pointers.
      Waste one element of value and location stack
      so that they stay on the same level as the state stack.
      The wasted elements are never initialized.  */
-
   yyssp = yyss;
   yyvsp = yyvs;
   yylsp = yyls;
+
 #if YYLTYPE_IS_TRIVIAL
   /* Initialize the default location before parsing starts.  */
   yylloc.first_line   = yylloc.last_line   = 1;
-  yylloc.first_column = yylloc.last_column = 0;
+  yylloc.first_column = yylloc.last_column = 1;
 #endif
 
   goto yysetstate;
@@ -1545,6 +1637,7 @@ YYLTYPE yylloc;
 		    &yyvs1, yysize * sizeof (*yyvsp),
 		    &yyls1, yysize * sizeof (*yylsp),
 		    &yystacksize);
+
 	yyls = yyls1;
 	yyss = yyss1;
 	yyvs = yyvs1;
@@ -1566,9 +1659,9 @@ YYLTYPE yylloc;
 	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
 	if (! yyptr)
 	  goto yyexhaustedlab;
-	YYSTACK_RELOCATE (yyss);
-	YYSTACK_RELOCATE (yyvs);
-	YYSTACK_RELOCATE (yyls);
+	YYSTACK_RELOCATE (yyss_alloc, yyss);
+	YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+	YYSTACK_RELOCATE (yyls_alloc, yyls);
 #  undef YYSTACK_RELOCATE
 	if (yyss1 != yyssa)
 	  YYSTACK_FREE (yyss1);
@@ -1589,6 +1682,9 @@ YYLTYPE yylloc;
 
   YYDPRINTF ((stderr, "Entering state %d\n", yystate));
 
+  if (yystate == YYFINAL)
+    YYACCEPT;
+
   goto yybackup;
 
 /*-----------.
@@ -1597,16 +1693,16 @@ YYLTYPE yylloc;
 yybackup:
 
   /* Do appropriate processing given the current state.  Read a
-     look-ahead token if we need one and don't already have one.  */
+     lookahead token if we need one and don't already have one.  */
 
-  /* First try to decide what to do without reference to look-ahead token.  */
+  /* First try to decide what to do without reference to lookahead token.  */
   yyn = yypact[yystate];
   if (yyn == YYPACT_NINF)
     goto yydefault;
 
-  /* Not known => get a look-ahead token if don't already have one.  */
+  /* Not known => get a lookahead token if don't already have one.  */
 
-  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
   if (yychar == YYEMPTY)
     {
       YYDPRINTF ((stderr, "Reading a token: "));
@@ -1638,20 +1734,16 @@ yybackup:
       goto yyreduce;
     }
 
-  if (yyn == YYFINAL)
-    YYACCEPT;
-
   /* Count tokens shifted since error; after three, turn off error
      status.  */
   if (yyerrstatus)
     yyerrstatus--;
 
-  /* Shift the look-ahead token.  */
+  /* Shift the lookahead token.  */
   YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
 
-  /* Discard the shifted token unless it is eof.  */
-  if (yychar != YYEOF)
-    yychar = YYEMPTY;
+  /* Discard the shifted token.  */
+  yychar = YYEMPTY;
 
   yystate = yyn;
   *++yyvsp = yylval;
@@ -1692,6 +1784,8 @@ yyreduce:
   switch (yyn)
     {
         case 2:
+
+/* Line 1455 of yacc.c  */
 #line 175 "ast_expr2.y"
     { ((struct parse_io *)parseio)->val = (struct val *)calloc(sizeof(struct val),1);
               ((struct parse_io *)parseio)->val->type = (yyvsp[(1) - (1)].val)->type;
@@ -1704,6 +1798,8 @@ yyreduce:
     break;
 
   case 3:
+
+/* Line 1455 of yacc.c  */
 #line 183 "ast_expr2.y"
     {/* nothing */ ((struct parse_io *)parseio)->val = (struct val *)calloc(sizeof(struct val),1);
               ((struct parse_io *)parseio)->val->type = AST_EXPR_string;
@@ -1712,11 +1808,15 @@ yyreduce:
     break;
 
   case 4:
+
+/* Line 1455 of yacc.c  */
 #line 190 "ast_expr2.y"
     { (yyval.val)= (yyvsp[(1) - (1)].val);;}
     break;
 
   case 5:
+
+/* Line 1455 of yacc.c  */
 #line 191 "ast_expr2.y"
     { (yyval.val) = (yyvsp[(2) - (3)].val); 
 	                       (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; 
@@ -1725,6 +1825,8 @@ yyreduce:
     break;
 
   case 6:
+
+/* Line 1455 of yacc.c  */
 #line 195 "ast_expr2.y"
     { (yyval.val) = op_or ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val));
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1733,6 +1835,8 @@ yyreduce:
     break;
 
   case 7:
+
+/* Line 1455 of yacc.c  */
 #line 199 "ast_expr2.y"
     { (yyval.val) = op_and ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1741,6 +1845,8 @@ yyreduce:
     break;
 
   case 8:
+
+/* Line 1455 of yacc.c  */
 #line 203 "ast_expr2.y"
     { (yyval.val) = op_eq ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val));
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1749,6 +1855,8 @@ yyreduce:
     break;
 
   case 9:
+
+/* Line 1455 of yacc.c  */
 #line 207 "ast_expr2.y"
     { (yyval.val) = op_gt ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val));
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1757,6 +1865,8 @@ yyreduce:
     break;
 
   case 10:
+
+/* Line 1455 of yacc.c  */
 #line 211 "ast_expr2.y"
     { (yyval.val) = op_lt ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1765,6 +1875,8 @@ yyreduce:
     break;
 
   case 11:
+
+/* Line 1455 of yacc.c  */
 #line 215 "ast_expr2.y"
     { (yyval.val) = op_ge ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1773,6 +1885,8 @@ yyreduce:
     break;
 
   case 12:
+
+/* Line 1455 of yacc.c  */
 #line 219 "ast_expr2.y"
     { (yyval.val) = op_le ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1781,6 +1895,8 @@ yyreduce:
     break;
 
   case 13:
+
+/* Line 1455 of yacc.c  */
 #line 223 "ast_expr2.y"
     { (yyval.val) = op_ne ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1789,6 +1905,8 @@ yyreduce:
     break;
 
   case 14:
+
+/* Line 1455 of yacc.c  */
 #line 227 "ast_expr2.y"
     { (yyval.val) = op_plus ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1797,6 +1915,8 @@ yyreduce:
     break;
 
   case 15:
+
+/* Line 1455 of yacc.c  */
 #line 231 "ast_expr2.y"
     { (yyval.val) = op_minus ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1805,6 +1925,8 @@ yyreduce:
     break;
 
   case 16:
+
+/* Line 1455 of yacc.c  */
 #line 235 "ast_expr2.y"
     { (yyval.val) = op_negate ((yyvsp[(2) - (2)].val)); 
 						DESTROY((yyvsp[(1) - (2)].val));	
@@ -1813,6 +1935,8 @@ yyreduce:
     break;
 
   case 17:
+
+/* Line 1455 of yacc.c  */
 #line 239 "ast_expr2.y"
     { (yyval.val) = op_compl ((yyvsp[(2) - (2)].val)); 
 						DESTROY((yyvsp[(1) - (2)].val));	
@@ -1821,6 +1945,8 @@ yyreduce:
     break;
 
   case 18:
+
+/* Line 1455 of yacc.c  */
 #line 243 "ast_expr2.y"
     { (yyval.val) = op_times ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1829,6 +1955,8 @@ yyreduce:
     break;
 
   case 19:
+
+/* Line 1455 of yacc.c  */
 #line 247 "ast_expr2.y"
     { (yyval.val) = op_div ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1837,6 +1965,8 @@ yyreduce:
     break;
 
   case 20:
+
+/* Line 1455 of yacc.c  */
 #line 251 "ast_expr2.y"
     { (yyval.val) = op_rem ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1845,6 +1975,8 @@ yyreduce:
     break;
 
   case 21:
+
+/* Line 1455 of yacc.c  */
 #line 255 "ast_expr2.y"
     { (yyval.val) = op_colon ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1853,6 +1985,8 @@ yyreduce:
     break;
 
   case 22:
+
+/* Line 1455 of yacc.c  */
 #line 259 "ast_expr2.y"
     { (yyval.val) = op_eqtilde ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); 
 						DESTROY((yyvsp[(2) - (3)].val));	
@@ -1861,6 +1995,8 @@ yyreduce:
     break;
 
   case 23:
+
+/* Line 1455 of yacc.c  */
 #line 263 "ast_expr2.y"
     { (yyval.val) = op_cond ((yyvsp[(1) - (5)].val), (yyvsp[(3) - (5)].val), (yyvsp[(5) - (5)].val)); 
 						DESTROY((yyvsp[(2) - (5)].val));	
@@ -1870,8 +2006,9 @@ yyreduce:
     break;
 
 
-/* Line 1267 of yacc.c.  */
-#line 1875 "ast_expr2.c"
+
+/* Line 1455 of yacc.c  */
+#line 2012 "ast_expr2.c"
       default: break;
     }
   YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -1947,7 +2084,7 @@ yyerrlab:
 
   if (yyerrstatus == 3)
     {
-      /* If just tried and failed to reuse look-ahead token after an
+      /* If just tried and failed to reuse lookahead token after an
 	 error, discard it.  */
 
       if (yychar <= YYEOF)
@@ -1964,7 +2101,7 @@ yyerrlab:
 	}
     }
 
-  /* Else will try to reuse look-ahead token after shifting the error
+  /* Else will try to reuse lookahead token after shifting the error
      token.  */
   goto yyerrlab1;
 
@@ -2022,14 +2159,11 @@ yyerrlab1:
       YY_STACK_PRINT (yyss, yyssp);
     }
 
-  if (yyn == YYFINAL)
-    YYACCEPT;
-
   *++yyvsp = yylval;
 
   yyerror_range[1] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of
-     the look-ahead.  YYLOC is available though.  */
+     the lookahead.  YYLOC is available though.  */
   YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
   *++yylsp = yyloc;
 
@@ -2054,7 +2188,7 @@ yyabortlab:
   yyresult = 1;
   goto yyreturn;
 
-#ifndef yyoverflow
+#if !defined(yyoverflow) || YYERROR_VERBOSE
 /*-------------------------------------------------.
 | yyexhaustedlab -- memory exhaustion comes here.  |
 `-------------------------------------------------*/
@@ -2065,7 +2199,7 @@ yyexhaustedlab:
 #endif
 
 yyreturn:
-  if (yychar != YYEOF && yychar != YYEMPTY)
+  if (yychar != YYEMPTY)
      yydestruct ("Cleanup: discarding lookahead",
 		 yytoken, &yylval, &yylloc);
   /* Do not reclaim the symbols of the rule which action triggered
@@ -2091,6 +2225,8 @@ yyreturn:
 }
 
 
+
+/* Line 1675 of yacc.c  */
 #line 270 "ast_expr2.y"
 
 
@@ -2647,6 +2783,8 @@ op_compl (struct val *a)
 					v1 = 0;
 				else if (strlen(a->u.s) == 1 && a->u.s[0] == '0' )
 					v1 = 0;
+				else
+					v1 = atoi(a->u.s);
 			}
 			break;
 			
@@ -2659,6 +2797,8 @@ op_compl (struct val *a)
 					v1 = 0;
 				else if (strlen(a->u.s) == 1 && a->u.s[0] == '0' )
 					v1 = 0;
+				else
+					v1 = atoi(a->u.s);
 			}
 			break;
 		}
@@ -2794,7 +2934,7 @@ op_colon (struct val *a, struct val *b)
 	/* compile regular expression */
 	if ((eval = regcomp (&rp, b->u.s, REG_EXTENDED)) != 0) {
 		regerror (eval, &rp, errbuf, sizeof(errbuf));
-		ast_log(LOG_WARNING,"regcomp() error : %s",errbuf);
+		ast_log(LOG_WARNING, "regcomp() error : %s\n", errbuf);
 		free_value(a);
 		free_value(b);
 		return make_str("");		
@@ -2845,7 +2985,7 @@ op_eqtilde (struct val *a, struct val *b)
 	/* compile regular expression */
 	if ((eval = regcomp (&rp, b->u.s, REG_EXTENDED)) != 0) {
 		regerror (eval, &rp, errbuf, sizeof(errbuf));
-		ast_log(LOG_WARNING,"regcomp() error : %s",errbuf);
+		ast_log(LOG_WARNING, "regcomp() error : %s\n", errbuf);
 		free_value(a);
 		free_value(b);
 		return make_str("");		
diff --git a/main/ast_expr2.h b/main/ast_expr2.h
index d05161266..864e01873 100644
--- a/main/ast_expr2.h
+++ b/main/ast_expr2.h
@@ -1,24 +1,23 @@
-/* A Bison parser, made by GNU Bison 2.3.  */
 
-/* Skeleton interface for Bison's Yacc-like parsers in C
+/* A Bison parser, made by GNU Bison 2.4.1.  */
 
-   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+/* Skeleton interface for Bison's Yacc-like parsers in C
+   
+      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
+   
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
-
+   
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* As a special exception, you may create a larger work that contains
    part or all of the Bison parser skeleton and distribute that work
@@ -29,10 +28,11 @@
    special exception, which will cause the skeleton and the resulting
    Bison output files to be licensed under the GNU General Public
    License without this special exception.
-
+   
    This special exception was added by the Free Software Foundation in
    version 2.2 of Bison.  */
 
+
 /* Tokens.  */
 #ifndef YYTOKENTYPE
 # define YYTOKENTYPE
@@ -62,44 +62,26 @@
      TOKEN = 278
    };
 #endif
-/* Tokens.  */
-#define TOK_COLONCOLON 258
-#define TOK_COND 259
-#define TOK_OR 260
-#define TOK_AND 261
-#define TOK_NE 262
-#define TOK_LE 263
-#define TOK_GE 264
-#define TOK_LT 265
-#define TOK_GT 266
-#define TOK_EQ 267
-#define TOK_MINUS 268
-#define TOK_PLUS 269
-#define TOK_MOD 270
-#define TOK_DIV 271
-#define TOK_MULT 272
-#define TOK_COMPL 273
-#define TOK_EQTILDE 274
-#define TOK_COLON 275
-#define TOK_LP 276
-#define TOK_RP 277
-#define TOKEN 278
-
 
 
 
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 typedef union YYSTYPE
-#line 147 "ast_expr2.y"
 {
+
+/* Line 1676 of yacc.c  */
+#line 147 "ast_expr2.y"
+
 	struct val *val;
-}
-/* Line 1489 of yacc.c.  */
-#line 99 "ast_expr2.h"
-	YYSTYPE;
+
+
+
+/* Line 1676 of yacc.c  */
+#line 81 "ast_expr2.h"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
 #endif
 
 
@@ -118,3 +100,4 @@ typedef struct YYLTYPE
 #endif
 
 
+
diff --git a/main/ast_expr2.y b/main/ast_expr2.y
index c09cd0a69..fa2007c12 100644
--- a/main/ast_expr2.y
+++ b/main/ast_expr2.y
@@ -822,6 +822,8 @@ op_compl (struct val *a)
 					v1 = 0;
 				else if (strlen(a->u.s) == 1 && a->u.s[0] == '0' )
 					v1 = 0;
+				else
+					v1 = atoi(a->u.s);
 			}
 			break;
 			
@@ -834,6 +836,8 @@ op_compl (struct val *a)
 					v1 = 0;
 				else if (strlen(a->u.s) == 1 && a->u.s[0] == '0' )
 					v1 = 0;
+				else
+					v1 = atoi(a->u.s);
 			}
 			break;
 		}