#! /bin/sh

# Test of gettext facilities in the Lua language.
# Assumes an fr_FR locale is installed.
# Assumes the following packages are installed: lua, lua-gettext.

tmpfiles=""
trap 'rm -fr $tmpfiles' 1 2 3 15

tmpfiles="$tmpfiles prog.lua"
cat <<\EOF > prog.lua
require("gettext")
gettext.bindtextdomain("prog", "l-lua")
gettext.textdomain("prog")
_ = gettext.gettext
n = 42

print(gettext.gettext("'Your command, please?', asked the waiter."))
print(string.format(gettext.ngettext('a piece of cake', [[%d pieces of cake]], n), n))
print(string.format(_[==[%s is replaced by %s.]==], "FF", "EUR"))
EOF

tmpfiles="$tmpfiles l-lua-prog.tmp l-lua-prog.pot"
: ${XGETTEXT=xgettext}
${XGETTEXT} -o l-lua-prog.tmp --omit-header --no-location prog.lua
test $? = 0 || { rm -fr $tmpfiles; exit 1; }
LC_ALL=C tr -d '\r' < l-lua-prog.tmp > l-lua-prog.pot
test $? = 0 || { rm -fr $tmpfiles; exit 1; }

tmpfiles="$tmpfiles l-lua-prog.ok"
cat <<\EOF > l-lua-prog.ok
msgid "'Your command, please?', asked the waiter."
msgstr ""

#, lua-format
msgid "a piece of cake"
msgid_plural "%d pieces of cake"
msgstr[0] ""
msgstr[1] ""

#, lua-format
msgid "%s is replaced by %s."
msgstr ""
EOF

: ${DIFF=diff}
${DIFF} l-lua-prog.ok l-lua-prog.pot || exit 1

tmpfiles="$tmpfiles l-lua-fr.po"
cat <<\EOF > l-lua-fr.po
msgid ""
msgstr ""
"Content-Type: text/plain; charset=ISO-8859-1\n"
"Plural-Forms: nplurals=2; plural=(n > 1);\n"

msgid "'Your command, please?', asked the waiter."
msgstr "«Votre commande, s'il vous plait», dit le garçon."

#, lua-format
msgid "a piece of cake"
msgid_plural "%d pieces of cake"
msgstr[0] "un morceau de gateau"
msgstr[1] "%d morceaux de gateau"

#, lua-format
msgid "%s is replaced by %s."
msgstr "%s remplace %s."
EOF

tmpfiles="$tmpfiles l-lua-fr.po.tmp l-lua-fr.po.new"
: ${MSGMERGE=msgmerge}
${MSGMERGE} -q -o l-lua-fr.po.tmp l-lua-fr.po l-lua-prog.pot
test $? = 0 || { rm -fr $tmpfiles; exit 1; }
LC_ALL=C tr -d '\r' < l-lua-fr.po.tmp > l-lua-fr.po.new
test $? = 0 || { rm -fr $tmpfiles; exit 1; }

: ${DIFF=diff}
${DIFF} l-lua-fr.po l-lua-fr.po.new || exit 1

tmpfiles="$tmpfiles l-lua"
test -d l-lua || mkdir l-lua
test -d l-lua/fr || mkdir l-lua/fr
test -d l-lua/fr/LC_MESSAGES || mkdir l-lua/fr/LC_MESSAGES

: ${MSGFMT=msgfmt}
${MSGFMT} -o l-lua/fr/LC_MESSAGES/prog.mo l-lua-fr.po

# Test for presence of lua version 5.0 or newer with gettext support.
(lua -v) >/dev/null 2>/dev/null
test $? -le 1 \
  || { echo "Skipping test: lua not found"; rm -fr $tmpfiles; exit 77; }
case `lua -v 2>&1 | sed -e 's/^[^0-9]*//'` in
  [5-9].*) ;;
  *) echo "Skipping test: lua version too old"; rm -fr $tmpfiles; exit 77;;
esac
{ lua -v -l gettext > /dev/null 2>/dev/null; } \
  || { echo "Skipping test: lua gettext module not found"
       rm -fr $tmpfiles; exit 77
     }

# Test which of the fr_FR locales are installed.
: ${LOCALE_FR=fr_FR}
: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
if test $LOCALE_FR != none; then
  LC_ALL=$LOCALE_FR ./testlocale
  case $? in
    0) ;;
    77) LOCALE_FR=none;;
    *) exit 1;;
  esac
fi
if test $LOCALE_FR_UTF8 != none; then
  LC_ALL=$LOCALE_FR_UTF8 ./testlocale
  case $? in
    0) ;;
    77) LOCALE_FR_UTF8=none;;
    *) exit 1;;
  esac
fi
if test $LOCALE_FR = none && test $LOCALE_FR_UTF8 = none; then
  if test -f /usr/bin/localedef; then
    echo "Skipping test: no french locale is installed"
  else
    echo "Skipping test: no french locale is supported"
  fi
  rm -fr $tmpfiles; exit 77
fi

tmpfiles="$tmpfiles l-lua-prog.ok l-lua-prog.oku l-lua-prog.out"
: ${DIFF=diff}
cat <<\EOF > l-lua-prog.ok
«Votre commande, s'il vous plait», dit le garçon.
42 morceaux de gateau
FF remplace EUR.
EOF
cat <<\EOF > l-lua-prog.oku
«Votre commande, s'il vous plait», dit le garçon.
42 morceaux de gateau
FF remplace EUR.
EOF

: ${LOCALE_FR=fr_FR}
: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
if test $LOCALE_FR != none; then
  LANGUAGE= LC_ALL=$LOCALE_FR lua -l gettext prog.lua > l-lua-prog.out || exit 1
  ${DIFF} l-lua-prog.ok l-lua-prog.out || exit 1
fi
if test $LOCALE_FR_UTF8 != none; then
  LANGUAGE= LC_ALL=$LOCALE_FR_UTF8 lua -l gettext prog.lua > l-lua-prog.out || exit 1
  ${DIFF} l-lua-prog.oku l-lua-prog.out || exit 1
fi

rm -fr $tmpfiles

exit 0