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regexvimsubstitution

Vim Regex substitute question

I'm trying to replace in VIM all multiple "-" characters (from the start of lines) with "="

p.e. replace "-----" with "====="
or replace "----------" with "=========="

I created this regex:

%s/^-\{2,}/=  ????/g

Does anyone know how I can replicate the "=" substitution? (what do I have to put after "=")

Solution

  • Try this:

    :%s/^-\{2,}/\=substitute(submatch(0), '-','=','g')/

    or:

    :%s/^-\{2,}/\=repeat('=',len(submatch(0)))/

    See :help sub-replace-\= for more details.