Fixed #3837 (False positive: national locale inline asm comments are reported as unsupported)

lib/preprocessor.cpp

@@ -446,6 +446,19 @@ std::string Preprocessor::removeComments(const std::string &str, const std::stri
                         suppressionIDs.push_back(word);
                 }
             }
+        } else if ((i==0 || std::isspace(str[i-1])) && str.compare(i,5,"__asm",0,5) == 0) {
+            while (i < str.size() && !std::isspace(str[i]))
+                code << str[i++];
+            while (i < str.size() && std::isspace(str[i]))
+                code << str[i++];
+            if (str[i] == '{') {
+                while (i < str.size() && str[i] != '}') {
+                    if (str[i] == ';')
+                        i = str.find("\n", i);
+                    code << str[i++];
+                }
+                code << '}';
+            }
         } else if (ch == '#' && previous == '\n') {
             code << ch;
             previous = ch;

lib/preprocessor.h

@@ -126,8 +126,6 @@ public:
 
     void handleUndef(std::list<std::string> &configurations) const;
 
-protected:
-
     /**
      * report error
      * @param fileName name of file that the error was found in

test/testpreprocessor.cpp

@@ -72,6 +72,9 @@ private:
         // reading utf-16 file
         TEST_CASE(utf16);
 
+        // remove comments
+        TEST_CASE(removeComments);
+
         // The bug that started the whole work with the new preprocessor
         TEST_CASE(Bug2190219);
 
@@ -365,6 +368,24 @@ private:
     }
 
 
+    void removeComments() {
+        Settings settings;
+        Preprocessor preprocessor(&settings, this);
+
+        // #3837 - asm comments
+        const char code[] = "void test(void) {\n"
+                            "   __asm\n"
+                            "   {\n"
+                            "      ;---- тест\n"
+                            "   }\n"
+                            "}\n";
+        ASSERT_EQUALS(true, std::string::npos == preprocessor.removeComments(code, "3837.c").find("----"));
+
+        ASSERT_EQUALS(" __asm123", preprocessor.removeComments(" __asm123", "3837.cpp"));
+        ASSERT_EQUALS("\" __asm { ; } \"", preprocessor.removeComments("\" __asm { ; } \"", "3837.cpp"));
+    }
+
+
     void Bug2190219() {
         const char filedata[] = "int main()\n"
                                 "{\n"