preprocessor: insert space. '#if(' => '#if ('

src/preprocessor.cpp

@@ -55,6 +55,9 @@ std::string Preprocessor::read(std::istream &istr)
     // Get filedata from stream..
     bool ignoreSpace = true;
 
+    // need space.. #if( => #if (
+    bool needSpace = false;
+
     // For the error report
     int lineno = 1;
 
@@ -81,6 +84,16 @@ std::string Preprocessor::read(std::istream &istr)
             continue;
         ignoreSpace = bool(ch == ' ' || ch == '#' || ch == '/');
 
+        if (needSpace)
+        {
+            if (ch == '(')
+                code << " ";
+            else if (! std::isalpha(ch))
+                needSpace = false;
+        }
+        if (ch == '#')
+            needSpace = true;
+
         // Remove comments..
         if (ch == '/')
         {

test/testpreprocessor.cpp

@@ -50,6 +50,7 @@ private:
         TEST_CASE(test3);
         TEST_CASE(test4);
         TEST_CASE(test5);
+        TEST_CASE(test6);
 
         // Handling include guards (don't create extra configuration for it)
         TEST_CASE(includeguard);
@@ -274,6 +275,18 @@ private:
         ASSERT_EQUALS(3, actual.size());
     }
 
+    void test6()
+    {
+        const char filedata[] = "#if(AAA)\n"
+                                "#if(AAA)\n";
+
+        std::istringstream istr(filedata);
+        const std::string actual(Preprocessor::read(istr));
+
+        // Compare results..
+        ASSERT_EQUALS("#if (AAA)\n#if (AAA)\n", actual);
+    }
+
 
     void includeguard()
     {