Genex: Make EQUAL support upper case binary literals

As C++11, python, D and java do.

 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf

Add test for uppercase hex literals.

Source/cmGeneratorExpressionEvaluator.cxx

@@ -215,18 +215,18 @@ static const struct EqualNode : public cmGeneratorExpressionNode
     bool flipSign = false;
 
     const char *lhs = parameters[0].c_str();
-    if (cmHasLiteralPrefix(lhs, "0b"))
+    if (cmHasLiteralPrefix(lhs, "0b") || cmHasLiteralPrefix(lhs, "0B"))
       {
       base = 2;
       lhs += 2;
       }
-    if (cmHasLiteralPrefix(lhs, "-0b"))
+    if (cmHasLiteralPrefix(lhs, "-0b") || cmHasLiteralPrefix(lhs, "-0B"))
       {
       base = 2;
       lhs += 3;
       flipSign = true;
       }
-    if (cmHasLiteralPrefix(lhs, "+0b"))
+    if (cmHasLiteralPrefix(lhs, "+0b") || cmHasLiteralPrefix(lhs, "+0B"))
       {
       base = 2;
       lhs += 3;
@@ -249,18 +249,18 @@ static const struct EqualNode : public cmGeneratorExpressionNode
     flipSign = false;
 
     const char *rhs = parameters[1].c_str();
-    if (cmHasLiteralPrefix(rhs, "0b"))
+    if (cmHasLiteralPrefix(rhs, "0b") || cmHasLiteralPrefix(rhs, "0B"))
       {
       base = 2;
       rhs += 2;
       }
-    if (cmHasLiteralPrefix(rhs, "-0b"))
+    if (cmHasLiteralPrefix(rhs, "-0b") || cmHasLiteralPrefix(rhs, "-0B"))
       {
       base = 2;
       rhs += 3;
       flipSign = true;
       }
-    if (cmHasLiteralPrefix(rhs, "+0b"))
+    if (cmHasLiteralPrefix(rhs, "+0b") || cmHasLiteralPrefix(rhs, "+0B"))
       {
       base = 2;
       rhs += 3;

Tests/GeneratorExpression/CMakeLists.txt

@@ -199,7 +199,7 @@ add_custom_target(check-part3 ALL
     -Dequal1=$<EQUAL:1,2>
     -Dequal2=$<EQUAL:1,1>
     -Dequal3=$<EQUAL:0x1,1>
-    -Dequal4=$<EQUAL:0x1,2>
+    -Dequal4=$<EQUAL:0X1,2>
     -Dequal5=$<EQUAL:0xA,0xa>
     -Dequal6=$<EQUAL:0xA,10>
     -Dequal7=$<EQUAL:0xA,012>
@@ -208,15 +208,17 @@ add_custom_target(check-part3 ALL
     -Dequal10=$<EQUAL:10,0b1010>
     -Dequal11=$<EQUAL:-10,-0xa>
     -Dequal12=$<EQUAL:10,+0xa>
-    -Dequal13=$<EQUAL:+10,+0xa>
+    -Dequal13=$<EQUAL:+10,+0Xa>
     -Dequal14=$<EQUAL:+10,0xa>
-    -Dequal15=$<EQUAL:-10,-0xa>
+    -Dequal15=$<EQUAL:-10,-0Xa>
     -Dequal16=$<EQUAL:-10,-0b1010>
     -Dequal17=$<EQUAL:-10,+0b1010>
-    -Dequal18=$<EQUAL:10,+0b1010>
-    -Dequal19=$<EQUAL:10,+012>
-    -Dequal20=$<EQUAL:10,-012>
-    -Dequal21=$<EQUAL:-10,-012>
+    -Dequal18=$<EQUAL:10,+0B1010>
+    -Dequal19=$<EQUAL:10,-0B1010>
+    -Dequal20=$<EQUAL:10,0B1010>
+    -Dequal21=$<EQUAL:10,+012>
+    -Dequal22=$<EQUAL:10,-012>
+    -Dequal23=$<EQUAL:-10,-012>
     -P ${CMAKE_CURRENT_SOURCE_DIR}/check-part3.cmake
   COMMAND ${CMAKE_COMMAND} -E echo "check done (part 3 of 3)"
   VERBATIM

Tests/GeneratorExpression/check-part3.cmake

@@ -55,6 +55,8 @@ check(equal15 "1")
 check(equal16 "1")
 check(equal17 "0")
 check(equal18 "1")
-check(equal19 "1")
-check(equal20 "0")
+check(equal19 "0")
+check(equal20 "1")
 check(equal21 "1")
+check(equal22 "0")
+check(equal23 "1")