replace keyword

vim-sprintf

let s:save_cpo= &cpo
set cpo&vim

function! Sprintf(expr, args)
    let l:result= a:expr

    while match(l:result, '\${\w\+}') != -1
        let l:keyword= matchstr(l:result, '\${\zs\w\+\ze}')
        let l:replacement= has_key(a:args, l:keyword) ? a:args[l:keyword] : ''

        let l:result= substitute(l:result, '\${' . l:keyword . '}', l:replacement, 'g')
    endwhile

    return l:result
endfunction

" output => A is B
echo Sprintf('${hoge} is ${fuga}', {
\   'hoge': 'A',
\   'fuga': 'B',
\})

let &cpo= s:save_cpo
unlet s:save_cpo
" vim: foldenable: foldmethod=marker