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#!/bin/sh
# Portability note:
# This tool is only used in building spec.txt for a release, not used as
# part of the normal build/install process, so only Maintainers are affected
# by requirements here.
filename="$1"
if echo a | pcregrep -q a 2>/dev/null
then
pcregrep -q '[^\x{20}-\x{7E}]' "$filename"
grepstatus=$?
else
perl -ne 'BEGIN {$rv=1};END {exit $rv};
if (/[^\r\n\x{20}-\x{7E}]/) { $rv = 0; last }' < "$filename"
grepstatus=$?
fi
case $grepstatus in
0)
echo >&2 "$0: found non-ASCII characters in $filename"
exit 1
;;
1)
exit 0
;;
2)
echo >&2 "$0: problem checking for non-ASCII characters in $filename"
exit 2
;;
*)
echo >&2 "$0: unhandled return value from pcregrep: $grepstatus"
exit 3
;;
esac
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