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#! /usr/bin/env bash
# Updates ./unames.c as per UnicodeData.txt, preserving original .c file
# Just a shell wrapper around Bill Poser's awk script in original source
# By gsr.bugs infernal-iceberg com for Debian
set -Eeuo pipefail # bash, not all supported with (da)sh
DEBIAN_DFILE=/usr/share/unicode/UnicodeData.txt
USER_DFILE=${1:-"./UnicodeData.txt"}
if [ -f "$USER_DFILE" ] ; then
echo "Using $USER_DFILE for ranges"
DFILE="$USER_DFILE"
elif [ -f "$DEBIAN_DFILE" ] ; then
echo "Using OS installed UnicodeData.txt as fallback for names"
DFILE="$DEBIAN_DFILE"
else
echo "Usage: $0 [path/to/new/UnicodeData.txt]"
echo "Alternatively try 'sudo apt install unicode-data'"
exit 1
fi
SOURCE="./unames.c"
if [ -f "${SOURCE}-orig" ] ; then
echo "Backup ${SOURCE}-orig exists, writing new version to $SOURCE"
else
echo "Backing up $SOURCE to ${SOURCE}-orig, then writing to $SOURCE"
cp -a "$SOURCE" "${SOURCE}-orig" || { echo Problem with cp ; exit 2 ; }
fi
# We have a backup, so recreate in full with the awk script
awk -f genunames.awk < "${DFILE}" > "${SOURCE}"
echo "You may want to run 'diff -u ${SOURCE}-orig ${SOURCE}' to verify"
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