Putting the value of an argument into part of a regex in vimscript?

Question

Is it possible to pass a variable to a function in vimscript, and then use that value in a search and replace regex?

For example:

function! AddTW5Links(tiddlerSetName) 

    %s/\(*\+\)\(\[\[\(.*\)\)\]\]/\1[[\3|\3 - $tiddlerSetName]]/g

endfunction

Answer 1

You have the choice between using :s after :exe, or using :s\=.

Meaning (untested)

:exe 's/\(*\+\)\(\[\[\(.*\)\)\]\]/\1[[\3|\3 - '.a:tiddlerSetName.']]/g'

(beware of double-quote, you'll have to double all your backslashes with them)

Or

:s/\(*\+\)\(\[\[\(.*\)\)\]\]/=submatch(1).'[['.submatch(3).'|'.submatch(3).' - '.a:tiddlerSetName.']]'/g