Require ">" after ".5" to accept it as redirection (ROOT-8696).

lib/MetaProcessor/MetaParser.cpp

@@ -185,7 +185,7 @@ namespace cling {
     // Default redirect is stdout.
     MetaProcessor::RedirectionScope stream = MetaProcessor::kSTDOUT;
 
-    if (getCurTok().is(tok::constant)) {
+    if (getCurTok().is(tok::constant) && lookAhead(1).is(tok::greater)) {
       // > or 1> the redirection is for stdout stream
       // 2> redirection for stderr stream
       constant_FD = getCurTok().getConstant();

test/Prompt/OutputRedirect.C

@@ -19,6 +19,9 @@ static void setup() {
 }
 setup();
 
+// ROOT-8696
+.5 //CHECKOUT: (double) 0.500000
+
 .2>&1
 std::cerr << "Error into stdout.\n";
 //CHECKOUT: Error into stdout.