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I want to make a shortcut for compiling C++ file. I use :map <F5> :!g++ % -o app && ./app <CR>. How can I edit it to set output file's name, C++ file's name without .cpp instead of app?
For example I want the name of g++ output file to be main when I use <F5> when I edit main.cpp.
NOTE: I use neovim 0.6.1
Check out some related questions: https://vi.stackexchange.com/search?q=%5Bfiletype-c%2B%2B%5D+g%2B%2B, https://vi.stackexchange.com/search?q=%5Bfiletype-c%2B%2B%5D+compile
A short answer: prefer to use :make to build and probably :terminal or :! to run the program, all of which you can bind maps to.
But if you insist on this particular setup: :help cmdline-special and :help filename-modifiers give %:t:r.
