Minor simplifications to valexpr parser

The most significant change is the way CONS sequences are parsed, and
that now instead of =/:=, the operators are ==/=.

1 files changed, 4 insertions, 7 deletions

diff --git a/src/token.h b/src/token.h
index aae73837..28e29752 100644
--- a/src/token.h
+++ b/src/token.h
@@ -94,7 +94,7 @@ struct expr_t::token_t : public noncopyable
 
   } kind;
 
-  char        symbol[3];
+  char        symbol[6];
   value_t     value;
   std::size_t length;
 
@@ -113,13 +113,10 @@ struct expr_t::token_t : public noncopyable
   }
 
   void clear() {
-    kind   = UNKNOWN;
-    length = 0;
-    value  = NULL_VALUE;
-
+    kind      = UNKNOWN;
+    length    = 0;
+    value     = NULL_VALUE;
     symbol[0] = '\0';
-    symbol[1] = '\0';
-    symbol[2] = '\0';
   }
 
   int  parse_reserved_word(std::istream& in);