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#!/bin/bash
# Autor: Matias Linares <mlm0111@famaf.unc.edu.ar>
VIEWER=evince
PARAMS=("$@")
re='^[0-9]+$'
function usage {
printf "$0 [CHAPTER] [MANPAGE] [FILE]\n\n"
printf "Converts a man page to pdf. If the file to save is not defined, it will open\n"
printf "with the PDF viewer of your choice.\n\n"
printf "[CHAPTER] and [FILE] can be omitted.\n"
}
function isnumber {
num=$1
if ! [[ $num =~ $re ]]; then
echo 0
else
echo 1
fi
}
assert_manpage() {
man -t $1 $2 > /dev/null || exit 1
}
if [ ${#PARAMS[*]} -eq 0 ] || [ ${#PARAMS[*]} -gt 3 ] ||
[ "${PARAMS[0]}" = "-h" ] || [ "${PARAMS[0]}" = "--help" ]
then
# Fallan los parametros o queremos ver la ayuda :p
usage
elif [ ${#PARAMS[*]} -eq 1 ]
then
# Un solo parametro
assert_manpage ${PARAMS[0]}
name="/tmp/${PARAMS[0]}.pdf"
manpage=${PARAMS[0]}
man -t $manpage | ps2pdf - > "$name"
$VIEWER $name 2> /dev/null &
elif [ ${#PARAMS[*]} -eq 2 ]
then
# Son dos parametros.
if [ $(isnumber ${PARAMS[0]}) -eq 0 ]
then
# Tenemos un archivo al que escribir
assert_manpage ${PARAMS[0]}
manpage=${PARAMS[0]}
name="${PARAMS[1]}"
man -t ${PARAMS[0]} | ps2pdf - > "${PARAMS[1]}"
else
# Vemos el archivo con su respectiva pagina de manual
assert_manpage ${PARAMS[0]} ${PARAMS[1]}
name="/tmp/${PARAMS[1]}${PARAMS[0]}.pdf"
chapter=${PARAMS[0]}
manpage=${PARAMS[1]}
man -t $chapter $manpage | ps2pdf - > "$name"
$VIEWER $name 2> /dev/null &
fi
else
name="${PARAMS[2]}"
chapter=${PARAMS[0]}
manpage=${PARAMS[1]}
man -t $chapter $manpage | ps2pdf - > "$name"
fi
exit 0
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