# /etc/profile.d/lang.sh - exports environment variables, and provides fallback

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# for CJK languages that can't be displayed in console.

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if [ -n "${LANG}" ]; then

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LANG_backup="${LANG}"

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fi

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for config in /etc/locale.conf "${HOME}/.i18n"; do

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# NOTE: We are using eval & sed here to avoid invoking of any commands & functions from those files.

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if [ -f "${config}" ]; then

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eval $(/usr/bin/sed -r -e 's/^[[:blank:]]*([[:upper:]_]+)=([[:print:][:digit:]\._-]+|"[[:print:][:digit:]\._-]+")/export \1=\2/;t;d' ${config})

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fi

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done

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if [ -n "${LANG_backup}" ]; then

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LANG="${LANG_backup}"

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fi

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unset LANG_backup config

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# ----------------------------------------------

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# The LC_ALL is not supposed to be set in /etc/locale.conf according to 'man 5 locale.conf'.

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# If it is set, then we we expect it is user's explicit override (most likely from ~/.i18n file).

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# See 'man 7 locale' for more info about LC_ALL.

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if [ -n "${LC_ALL}" ]; then

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if [ "${LC_ALL}" != "${LANG}" ]; then

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export LC_ALL

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else

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unset LC_ALL

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fi

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fi

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# The ${LANG} manipulation is necessary only in virtual terminal (a.k.a. console - /dev/tty*):

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if [ -n "${LANG}" ] && [ "${TERM}" = 'linux' ] && /usr/bin/tty | /usr/bin/grep --quiet -e '/dev/tty'; then

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if /usr/bin/grep --quiet -E -i -e '^.+\.utf-?8$' <<< "${LANG}"; then

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case ${LANG} in

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ja*) LANG=en_US.UTF-8 ;;

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ko*) LANG=en_US.UTF-8 ;;

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si*) LANG=en_US.UTF-8 ;;

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zh*) LANG=en_US.UTF-8 ;;

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ar*) LANG=en_US.UTF-8 ;;

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fa*) LANG=en_US.UTF-8 ;;

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he*) LANG=en_US.UTF-8 ;;

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en_IN*) true ;;

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*_IN*) LANG=en_US.UTF-8 ;;

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esac

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else

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case ${LANG} in

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ja*) LANG=en_US ;;

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ko*) LANG=en_US ;;

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si*) LANG=en_US ;;

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zh*) LANG=en_US ;;

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ar*) LANG=en_US ;;

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fa*) LANG=en_US ;;

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he*) LANG=en_US ;;

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en_IN*) true ;;

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*_IN*) LANG=en_US ;;

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esac

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fi

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# NOTE: We are not exporting the ${LANG} here again on purpose.

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# If user starts GUI session from console manually, then

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# the previously set LANG should be okay to use.

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fi

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