Filters upgraded - a bit. Moved code to filter.c because it is where

it belongs. (f-util.c stays there for auxiliary and non-important things.)

conf/cf-lex.l

@@ -103,7 +103,7 @@ WHITE [ \t]
   return SYM;
 }
 
-[={}:;,()+*/%-] {
+[={}:;,()+*/%-<>~] {
   return yytext[0];
 }
 

conf/confbase.Y

@@ -37,9 +37,10 @@ CF_DECLS
 
 %type <i> expr bool pxlen
 
-%left '='
+%nonassoc '=' '<' '>'
 %left '+' '-'
 %left '*' '/' '%'
+%left '!'
 
 CF_KEYWORDS(DEFINE, ON, OFF, YES, NO)