More complex format of int and float can be match

1 files changed, 3 insertions, 3 deletions

diff --git a/lexer.l b/lexer.l
index 829c158..529ba1a 100644
--- a/lexer.l
+++ b/lexer.l
@@ -48,9 +48,9 @@ ID              {letter}({letter}|{digit}|"_")*
 WS              [ \t]+
 
 /* You need to define the following RE's */
-CONST_INT       {digit}+
-CONST_FLOAT     {digit}+\.{digit}+
-/* -?([0-9]+|[0-9]*\.[0-9]+([eE][-+]?[0-9]+)?) */
+CONST_INT       [+-]?{digit}+
+CONST_FLOAT     [+-]?([0-9]+|[0-9]*\.[0-9]+([eE][-+]?[0-9]+)?)
+                /* {digit}+\.{digit}+ */
 CONST_STRING    \"([^\"\n]|(\\.))*\"
 COMMENT         \/\*([^*]|\n|(\*+([^*/]|\n)))*\*+\/