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#!/usr/bin/perl
use strict;
my $pont = qr{[.!?]+}; ## punctuation
my $abrev = qr{\b(?:Pr|Dr|Mr|[A-Z]|i\.e|e\.g|et al|etc|p|Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|vs)\.}; ## abbreviations
my $header = qr{(=+ .*? =+)};
$/ = "";
while(<>) {
chomp; ## for each paragraph,
s/\h*\n\h*/ /g; ## remove \n
s/($pont)\h+(\S)/$1\n$2/g; ## punctuation+space
s/($abrev)\n/$1 /g; ## undo \n after abbreviations
s/$header\h+(\S)/$1\n$2/g; ## vimwiki headers
print "$_\n";
}
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