Fix ticket #85 (False positive (style) Redundant code, begins with string)

src/tokenize.cpp

@@ -546,6 +546,20 @@ void Tokenizer::setVarId()
 
 void Tokenizer::simplifyTokenList()
 {
+    // Combine strings
+    for (Token *tok = _tokens; tok; tok = tok->next())
+    {
+        if (tok->str()[0] == '"' && tok->next() && tok->next()->str()[0] == '"')
+        {
+            // Two strings after each other, combine them
+            std::string temp = tok->str();
+            temp.erase(temp.length() - 1);
+            temp.append(tok->next()->str().substr(1));
+            tok->str(temp.c_str());
+            tok->deleteNext();
+        }
+    }
+
     // Remove unwanted keywords
     static const char* unwantedWords[] = { "unsigned", "unlikely" };
     for (Token *tok = _tokens; tok; tok = tok->next())

test/testincompletestatement.cpp

@@ -61,6 +61,7 @@ private:
         TEST_CASE(test1);
         TEST_CASE(test2);
         TEST_CASE(test3);
+        TEST_CASE(test4);
     }
 
     void test1()
@@ -97,6 +98,20 @@ private:
 
         ASSERT_EQUALS(std::string(""), errout.str());
     }
+
+    void test4()
+    {
+        check("void foo()\n"
+              "{\n"
+              "const char *a =\n"
+              "{\n"
+              "\"hello \"\n"
+              "\"world\"\n"
+              "};\n"
+              "}\n");
+
+        ASSERT_EQUALS(std::string(""), errout.str());
+    }
 };
 
 REGISTER_TEST(TestIncompleteStatement)

test/testsimplifytokens.cpp

@@ -39,6 +39,7 @@ private:
         TEST_CASE(cast0);
         TEST_CASE(sizeof1);
         TEST_CASE(iftruefalse);
+        TEST_CASE(combine_strings);
     }
 
     std::string tok(const char code[])
@@ -141,6 +142,27 @@ private:
             ASSERT_EQUALS(tok(code2), tok(code1));
         }
     }
+
+    void combine_strings()
+    {
+        const char code1[] =  "void foo()\n"
+                              "{\n"
+                              "const char *a =\n"
+                              "{\n"
+                              "\"hello \"\n"
+                              "\"world\"\n"
+                              "};\n"
+                              "}\n";
+
+        const char code2[] =  "void foo()\n"
+                              "{\n"
+                              "const char *a =\n"
+                              "{\n"
+                              "\"hello world\"\n"
+                              "};\n"
+                              "}\n";
+        ASSERT_EQUALS(tok(code2), tok(code1));
+    }
 };
 
 REGISTER_TEST(TestSimplifyTokens)