Change Rainbow-parenthese plugin into Rainbow plugin.

sources_non_forked/coc.nvim/autoload/coc/string.vim

@@ -39,6 +39,35 @@ function! coc#string#reflow(lines, width) abort
   return empty(lines) ? [''] : lines
 endfunction
 
+function! coc#string#content_height(lines, width) abort
+  let len = 0
+  for line in a:lines
+    if strwidth(line) <= a:width
+      let len = len + 1
+    else
+      let currlen = 0
+      for part in split(line, '\<\|\>\|\ze\s')
+        let w = strwidth(part)
+        if currlen + w >= a:width
+          if currlen + w == a:width
+            let len = len + 1
+            let currlen = 0
+          else
+            let len = len + (a:width + w)/a:width
+            let currlen = w%a:width
+          endif
+        else
+          let currlen = currlen + w
+        endif
+      endfor
+      if currlen > 0
+        let len = len + 1
+      endif
+    endif
+  endfor
+  return len == 0 ? 1 : len
+endfunction
+
 " get change between two lines
 function! coc#string#diff(curr, previous, col) abort
   let end = strpart(a:curr, a:col - 1)