#!/bin/sh
# Complete check of a stateless encoding.
# Usage: check-stateless SRCDIR CHARSET
srcdir="$1"
charset="$2"
set -e
./table-from "$charset" > tmp-"$charset".TXT
./table-to "$charset" | sort > tmp-"$charset".INVERSE.TXT
cmp "${srcdir}"/"$charset".TXT tmp-"$charset".TXT 2> /dev/null
if test -f "${srcdir}"/"$charset".IRREVERSIBLE.TXT; then
  cat "${srcdir}"/"$charset".TXT "${srcdir}"/"$charset".IRREVERSIBLE.TXT | sort | uniq -u > tmp-orig-"$charset".INVERSE.TXT
  cmp tmp-orig-"$charset".INVERSE.TXT tmp-"$charset".INVERSE.TXT 2> /dev/null
else
  cmp "${srcdir}"/"$charset".TXT tmp-"$charset".INVERSE.TXT 2> /dev/null
fi
rm -f tmp-"$charset".TXT tmp-"$charset".INVERSE.TXT tmp-orig-"$charset".INVERSE.TXT
exit 0
# For a new encoding:
# You can create the "$charset".TXT like this:
#   ./table-from "$charset" > "$charset".TXT
# You can create the "$charset".IRREVERSIBLE.TXT like this:
#   ./table-to "$charset" | sort > "$charset".INVERSE.TXT
#   diff "$charset".TXT "$charset".INVERSE.TXT | grep '^[<>]' | sed -e 's,^. ,,' > "$charset".IRREVERSIBLE.TXT