Hello Discipulus,

I don’t have an answer to your question, sorry, just a few comments on syntax:

• The comma operator has a lower precedence than ||, so a line such as:

  open RENDER, "> $ENV{TEMP}/_temp.html" || die "unable to write to %TEM
  +P%\\_temp.html";
  [download]

  actually parses as:

  open RENDER, ( "> $ENV{TEMP}/_temp.html" || die "unable to write to %T
  +EMP%\\_temp.html" );
  [download]

  which is not what you want. Either change || to the lower-precedence or, or put the arguments to open into parentheses.

• In a regex, (:?X) captures X preceded by zero or one literal colons. For clustering (which is non-capturing), you need (?:X).

• You can avoid “leaning toothpick syndrome” by using regex delimiters other than the forward slash:

  s{src="([^"]*)/}{src="./_temp_files/}gm
  [download]

Hope that helps,