QPID-4621: Arithmetic operations for C++ broker selectors

- Rearranged Syntax and parser to support arithmetic
- Implemented arithmetic syntax
- Implemented arithmetic operators
- Added some tests for arithmetic operations
- Added explicit lexical tokens for all the comparison and arithmetic operations
- Added the missing ',' token for us in the 'IN' comparison
- Rearranged the lexer so that everything is not uniformly inside the
  hand crafted state machine.
- Moved a bunch of testing code from the tokeniser to the unit test
  (much of this code might actually not be very useful anymore)

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1457912 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 13 insertions, 0 deletions

diff --git a/cpp/src/qpid/broker/SelectorValue.cpp b/cpp/src/qpid/broker/SelectorValue.cpp
index 83a9240dcb..de097b8969 100644
--- a/cpp/src/qpid/broker/SelectorValue.cpp
+++ b/cpp/src/qpid/broker/SelectorValue.cpp
@@ -194,4 +194,17 @@ Value operator/(const Value& v1, const Value& v2)
     return Value();
 }
 
+Value operator-(const Value& v)
+{
+    switch (v.type) {
+    case Value::T_EXACT:
+        return -v.i;
+    case Value::T_INEXACT:
+        return -v.x;
+    default:
+        break;
+    }
+    return Value();
+}
+
 }}