Please write C++ code which is able to analyse a text block and provide the following statistics: The start position in the text of all the smileys. Smileys are defined as the character colon plus an optional dash character and a bracket. e.g: :-] or :( The top 10 used words (excluding smileys) The application must support the following output formats: Console, Simple text file, XML file. Any combination of these backends can be specified through command line arguments (Console only, Text file only, Text file + XML file, etc.). The output should contain all the above information (1 and 2 from the list above). Formatting is up to the developer. Additional information: UTF8 encoding can be assumed Lines are separated by '\n' Words are separated by whitespace There are some edge cases that should be considered: Whitespace can be '\t', multiple consecutive whitespace characters, etc The text can consist of a single line without '\n' at the end. The line count should be 1 in such a case. Desired solution should have the following: Solution has to run on Linux. Design with classes and clean APIs. Good documentation. Code quality to be comparable to production code. Usage of C++11/14/17 features. Usage of STL and Boost features would be preferable whenever applicable. Unit tests > 90% CMake file which covers building and adding the tests If you find that this spec is ambiguous or incomplete please decide on your own and document our decision.