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#!/bin/bash
res=""
buf=""
while IFS="" read str
do
if [ -z "${str##* *}" ]
then
key="${str%% *}"
val="${str#* }"
else
key="${str}"
val=""
fi
if [ -z "${key}" ]
then
buf="${buf}"$'\n'"${val}"
else
if [ -n "${buf}" ]
then
res="${res}$(echo -n "${buf}" | $1)"
fi
buf="${val}"
fi
done
if [ -n "${buf}" ]
then
res="${res}$(echo -n "${buf}" | $1)"
fi
echo -n "${res}"
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