Added strings::IsHTML(string const & s) to correctly render bookmarks descriptions

base/base_tests/string_utils_test.cpp

@@ -511,3 +511,14 @@ UNIT_TEST(CountNormLowerSymbols)
     TEST_EQUAL(res, results[i], ());
   }
 }
+
+UNIT_TEST(IsHTML)
+{
+  using namespace strings;
+
+  TEST(IsHTML("<a href=\"link\">some link</a>"), ());
+  TEST(IsHTML("This is: ---> a <b>broken</b> html"), ());
+  TEST(!IsHTML("This is not html"), ());
+  TEST(!IsHTML("This is not html < too!"), ());
+  TEST(!IsHTML("I am > not html"), ());
+}

base/string_utils.cpp

@@ -206,4 +206,20 @@ string to_string_dac(double d, int dac)
   return ss.str();
 }
 
+bool IsHTML(string const & utf8)
+{
+  string::const_iterator it = utf8.begin();
+  size_t ltCount = 0;
+  size_t gtCount = 0;
+  while (it != utf8.end())
+  {
+    UniChar const c = utf8::unchecked::next(it);
+    if (c == '<')
+      ++ltCount;
+    else if (c == '>')
+      ++gtCount;
+  }
+  return (ltCount > 0 && gtCount > 0);
 }
+
+} // namespace strings

base/string_utils.hpp

@@ -255,6 +255,9 @@ string to_string_dac(double d, int dac);
 
 bool StartsWith(string const & s1, char const * s2);
 
+/// Try to guess if it's HTML or not. No guarantee.
+bool IsHTML(string const & utf8);
+
 /*
 template <typename ItT, typename DelimiterT>
 typename ItT::value_type JoinStrings(ItT begin, ItT end, DelimiterT const & delimiter)