Remember that mappings expand to keys that are then interpreted. So
think about exactly what keys you would press. Thus when you press
:w, vim prepends '<'> so you find yourself at :'<'> and from
there, to write normally, you would type w !pc and press enter.
Thus to prepend silent, we would press <home> followed by
silent followed by <end> and then append our destination,
which is ! to pipe to a command followed by pc, which is my
platform agnostic 'copy to clipboard' script.
vnoremap <leader>jc :w<home>silent <end> !pc<cr>I also have a put command which puts its standard input into
a named file in ~/.jstore from which I can recall it with get.
(This allows for persistent named clipboards, at least for text.)
For this it is necessary to type the target name, so <cr> is
not added to the end. (Note there is a space after the put
in the line below --- at some point I'll add functionality to PT
that allows for code blocks to have options, one of which will
turn spaces into some explicit symbol. Or perhaps put an explicit
carriage return symbol on the end of a line.
vnoremap <leader>jp :w<home>silent <end> !put