tye, well there is a reason not to simplify like you suggested: 

s#<div class="blockqte">#<pre>#g;  # this is OK
s#</div>#</pre>#g;                 # this creates the problems

[download]

you replace all </div> with </pre> and if I understood it correctly, not all the <div> tags have the attribute class="blockqte" and should be replaced ... ;-)

-- Hofmator

In reply to Re2: Help on using alternation grouping star versus dot star. by Hofmator
in thread Help on using alternation grouping star versus dot star. by Anonymous Monk

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