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| 1 | +#! /bin/sh |
| 2 | +# |
| 3 | +# Copyright (C) 2003, 2005-2007 Free Software Foundation, Inc. |
| 4 | +# |
| 5 | +# This program is free software; you can redistribute it and/or modify it |
| 6 | +# under the terms of the GNU Library General Public License as published |
| 7 | +# by the Free Software Foundation; either version 2, or (at your option) |
| 8 | +# any later version. |
| 9 | +# |
| 10 | +# This program is distributed in the hope that it will be useful, |
| 11 | +# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | +# GNU General Public License for more details. |
| 14 | +# |
| 15 | +# You should have received a copy of the GNU Library General Public |
| 16 | +# License along with this program; if not, write to the Free Software |
| 17 | +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| 18 | +# USA. |
| 19 | +# |
| 20 | + |
| 21 | +# Find a way to echo strings without interpreting backslash. |
| 22 | +if test "X`(echo '\t') 2>/dev/null`" = 'X\t'; then |
| 23 | + echo='echo' |
| 24 | +else |
| 25 | + if test "X`(printf '%s\n' '\t') 2>/dev/null`" = 'X\t'; then |
| 26 | + echo='printf %s\n' |
| 27 | + else |
| 28 | + echo_func () { |
| 29 | + cat <<EOT |
| 30 | +$* |
| 31 | +EOT |
| 32 | + } |
| 33 | + echo='echo_func' |
| 34 | + fi |
| 35 | +fi |
| 36 | + |
| 37 | +# This script is primarily a shell function library. In order for |
| 38 | +# ". gettext.sh" to find it, we install it in $PREFIX/bin (that is usually |
| 39 | +# contained in $PATH), rather than in some other location such as |
| 40 | +# $PREFIX/share/sh-scripts or $PREFIX/share/gettext. In order to not violate |
| 41 | +# the Filesystem Hierarchy Standard when doing so, this script is executable. |
| 42 | +# Therefore it needs to support the standard --help and --version. |
| 43 | +if test -z "$ZSH_VERSION"; then |
| 44 | + # zsh is not POSIX compliant: By default, while ". gettext.sh" is executed, |
| 45 | + # it sets $0 to "gettext.sh", defeating the purpose of this test. But |
| 46 | + # fortunately we know that when running under zsh, this script is always |
| 47 | + # being sourced, not executed, because hardly anyone is crazy enough to |
| 48 | + # install zsh as /bin/sh. |
| 49 | + case "$0" in |
| 50 | + gettext.sh | */gettext.sh | *\\gettext.sh) |
| 51 | + progname=$0 |
| 52 | + package=gettext-runtime |
| 53 | + version=0.18.1 |
| 54 | + # func_usage |
| 55 | + # outputs to stdout the --help usage message. |
| 56 | + func_usage () |
| 57 | + { |
| 58 | + echo "GNU gettext shell script function library version $version" |
| 59 | + echo "Usage: . gettext.sh" |
| 60 | + } |
| 61 | + # func_version |
| 62 | + # outputs to stdout the --version message. |
| 63 | + func_version () |
| 64 | + { |
| 65 | + echo "$progname (GNU $package) $version" |
| 66 | + echo "Copyright (C) 2003-2007 Free Software Foundation, Inc. |
| 67 | +License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> |
| 68 | +This is free software: you are free to change and redistribute it. |
| 69 | +There is NO WARRANTY, to the extent permitted by law." |
| 70 | + echo "Written by" "Bruno Haible" |
| 71 | + } |
| 72 | + if test $# = 1; then |
| 73 | + case "$1" in |
| 74 | + --help | --hel | --he | --h ) |
| 75 | + func_usage; exit 0 ;; |
| 76 | + --version | --versio | --versi | --vers | --ver | --ve | --v ) |
| 77 | + func_version; exit 0 ;; |
| 78 | + esac |
| 79 | + fi |
| 80 | + func_usage 1>&2 |
| 81 | + exit 1 |
| 82 | + ;; |
| 83 | + esac |
| 84 | +fi |
| 85 | + |
| 86 | +# eval_gettext MSGID |
| 87 | +# looks up the translation of MSGID and substitutes shell variables in the |
| 88 | +# result. |
| 89 | +eval_gettext () { |
| 90 | + gettext "$1" | (export PATH `envsubst --variables "$1"`; envsubst "$1") |
| 91 | +} |
| 92 | + |
| 93 | +# eval_ngettext MSGID MSGID-PLURAL COUNT |
| 94 | +# looks up the translation of MSGID / MSGID-PLURAL for COUNT and substitutes |
| 95 | +# shell variables in the result. |
| 96 | +eval_ngettext () { |
| 97 | + ngettext "$1" "$2" "$3" | (export PATH `envsubst --variables "$1 $2"`; envsubst "$1 $2") |
| 98 | +} |
| 99 | + |
| 100 | +# Note: This use of envsubst is much safer than using the shell built-in 'eval' |
| 101 | +# would be. |
| 102 | +# 1) The security problem with Chinese translations that happen to use a |
| 103 | +# character such as \xe0\x60 is avoided. |
| 104 | +# 2) The security problem with malevolent translators who put in command lists |
| 105 | +# like "$(...)" or "`...`" is avoided. |
| 106 | +# 3) The translations can only refer to shell variables that are already |
| 107 | +# mentioned in MSGID or MSGID-PLURAL. |
| 108 | +# |
| 109 | +# Note: "export PATH" above is a dummy; this is for the case when |
| 110 | +# `envsubst --variables ...` returns nothing. |
| 111 | +# |
| 112 | +# Note: In eval_ngettext above, "$1 $2" means a string whose variables set is |
| 113 | +# the union of the variables set of "$1" and "$2". |
| 114 | +# |
| 115 | +# Note: The minimal use of backquote above ensures that trailing newlines are |
| 116 | +# not dropped, not from the gettext invocation and not from the value of any |
| 117 | +# shell variable. |
| 118 | +# |
| 119 | +# Note: Field splitting on the `envsubst --variables ...` result is desired, |
| 120 | +# since envsubst outputs the variables, separated by newlines. Pathname |
| 121 | +# wildcard expansion or tilde expansion has no effect here, since the words |
| 122 | +# output by "envsubst --variables ..." consist solely of alphanumeric |
| 123 | +# characters and underscore. |
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