I broke up with neovim....vim is my best friend now

dot_vim/plugged/vim-lsp/syntax/lsp-hover.vim

@@ -0,0 +1,50 @@
+" Converts a markdown language (```foo) to the corresponding Vim filetype
+function! s:get_vim_filetype(lang_markdown) abort
+    " If the user hasn't customised markdown fenced languages, just return the
+    " markdown language
+    if !exists('g:markdown_fenced_languages')
+        return a:lang_markdown
+    endif
+
+    " Otherwise, check if it has an entry for the given language
+    for l:type in g:markdown_fenced_languages
+        let l:vim_type = substitute(matchstr(l:type, '[^=]*$'), '\..*', '', '')
+        let l:markdown_type = matchstr(l:type, '[^=]*')
+
+        if l:markdown_type ==# a:lang_markdown
+            " Found entry
+            return l:vim_type
+        endif
+    endfor
+
+    " Not found
+    return a:lang_markdown
+endfunction
+
+function! s:do_highlight() abort
+    if exists('b:lsp_syntax_highlights')
+        for l:entry in b:lsp_syntax_highlights
+            let l:line = l:entry['line']
+            let l:lang = l:entry['language']
+            let l:ft = s:get_vim_filetype(l:lang)
+
+            execute printf('syntax match markdownHighlight%s contains=@markdownHighlight%s /^\%%%sl.*$/', l:ft, l:ft, l:line)
+        endfor
+    endif
+endfunction
+
+function! s:cleanup_markdown() abort
+    " Don't highlight _ in words
+    syntax match markdownError "\w\@<=\w\@="
+
+    " Conceal escaped characters
+    " Workaround for: https://github.com/palantir/python-language-server/issues/386
+    if has('conceal')
+        for l:escaped_char in ['`', '*', '_', '{', '}', '(', ')', '<', '>', '#', '+', '.', '!', '-']
+            execute printf('syntax region vimLspMarkdownEscape matchgroup=Conceal start="\\\ze[%s]" end="[%s]\zs" concealends', l:escaped_char, l:escaped_char)
+        endfor
+    end
+endfunction
+
+call s:do_highlight()
+call s:cleanup_markdown()