Tip #330: how to stop auto indenting

Since VIM 6.0 the indent has been improved so much.
But sometimes when we are pasting formated text (source code or HTML etc)
into a buffer, VIM indents again so that lines will be padded with too
much spaces.

Setting nocindent, noautoindent, nosmartindent still cannot stop this.
All you need to do is "set paste", then paste your stuff, and then
"set nopaste" again.

Ref: indentexpr