Template:Iterative function call A

{{subst:subst}}#ifexpr:{{{end_condition}}}) |{{subst:subst}}Iterative function call A|{{{1}}}|{{{{{function_call}}}}}|{{{3}}}}}}}
{{{2}}} {{{{{function_call}}}}}

Substituting this template produces one or more new substitution template calls, allowing recursive change of a page, see Help:Recursive conversion of wikitext.