| #! /bin/sh |
| # |
| # Copyright (C) 2003, 2005-2007, 2011, 2015 Free Software Foundation, |
| # Inc. |
| # |
| # This program is free software: you can redistribute it and/or modify |
| # it under the terms of the GNU Lesser General Public License as published by |
| # the Free Software Foundation; either version 2.1 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU Lesser General Public License for more details. |
| # |
| # You should have received a copy of the GNU Lesser General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| # Find a way to echo strings without interpreting backslash. |
| if test "X`(echo '\t') 2>/dev/null`" = 'X\t'; then |
| echo='echo' |
| else |
| if test "X`(printf '%s\n' '\t') 2>/dev/null`" = 'X\t'; then |
| echo='printf %s\n' |
| else |
| echo_func () { |
| cat <<EOT |
| $* |
| EOT |
| } |
| echo='echo_func' |
| fi |
| fi |
| |
| # This script is primarily a shell function library. In order for |
| # ". gettext.sh" to find it, we install it in $PREFIX/bin (that is usually |
| # contained in $PATH), rather than in some other location such as |
| # $PREFIX/share/sh-scripts or $PREFIX/share/gettext. In order to not violate |
| # the Filesystem Hierarchy Standard when doing so, this script is executable. |
| # Therefore it needs to support the standard --help and --version. |
| if test -z "${ZSH_VERSION+set}"; then |
| # zsh is not POSIX compliant: By default, while ". gettext.sh" is executed, |
| # it sets $0 to "gettext.sh", defeating the purpose of this test. But |
| # fortunately we know that when running under zsh, this script is always |
| # being sourced, not executed, because hardly anyone is crazy enough to |
| # install zsh as /bin/sh. |
| case "$0" in |
| gettext.sh | */gettext.sh | *\\gettext.sh) |
| progname=$0 |
| package=gettext-runtime |
| version=0.19.7 |
| # func_usage |
| # outputs to stdout the --help usage message. |
| func_usage () |
| { |
| echo "GNU gettext shell script function library version $version" |
| echo "Usage: . gettext.sh" |
| } |
| # func_version |
| # outputs to stdout the --version message. |
| func_version () |
| { |
| echo "$progname (GNU $package) $version" |
| echo "Copyright (C) 2003-2007 Free Software Foundation, Inc. |
| License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> |
| This is free software: you are free to change and redistribute it. |
| There is NO WARRANTY, to the extent permitted by law." |
| echo "Written by" "Bruno Haible" |
| } |
| if test $# = 1; then |
| case "$1" in |
| --help | --hel | --he | --h ) |
| func_usage; exit 0 ;; |
| --version | --versio | --versi | --vers | --ver | --ve | --v ) |
| func_version; exit 0 ;; |
| esac |
| fi |
| func_usage 1>&2 |
| exit 1 |
| ;; |
| esac |
| fi |
| |
| # eval_gettext MSGID |
| # looks up the translation of MSGID and substitutes shell variables in the |
| # result. |
| eval_gettext () { |
| gettext "$1" | (export PATH `envsubst --variables "$1"`; envsubst "$1") |
| } |
| |
| # eval_ngettext MSGID MSGID-PLURAL COUNT |
| # looks up the translation of MSGID / MSGID-PLURAL for COUNT and substitutes |
| # shell variables in the result. |
| eval_ngettext () { |
| ngettext "$1" "$2" "$3" | (export PATH `envsubst --variables "$1 $2"`; envsubst "$1 $2") |
| } |
| |
| # Note: This use of envsubst is much safer than using the shell built-in 'eval' |
| # would be. |
| # 1) The security problem with Chinese translations that happen to use a |
| # character such as \xe0\x60 is avoided. |
| # 2) The security problem with malevolent translators who put in command lists |
| # like "$(...)" or "`...`" is avoided. |
| # 3) The translations can only refer to shell variables that are already |
| # mentioned in MSGID or MSGID-PLURAL. |
| # |
| # Note: "export PATH" above is a dummy; this is for the case when |
| # `envsubst --variables ...` returns nothing. |
| # |
| # Note: In eval_ngettext above, "$1 $2" means a string whose variables set is |
| # the union of the variables set of "$1" and "$2". |
| # |
| # Note: The minimal use of backquote above ensures that trailing newlines are |
| # not dropped, not from the gettext invocation and not from the value of any |
| # shell variable. |
| # |
| # Note: Field splitting on the `envsubst --variables ...` result is desired, |
| # since envsubst outputs the variables, separated by newlines. Pathname |
| # wildcard expansion or tilde expansion has no effect here, since the words |
| # output by "envsubst --variables ..." consist solely of alphanumeric |
| # characters and underscore. |