freebsd-skq/contrib/diff/exgettext
2007-06-15 07:06:13 +00:00

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#! /bin/sh
# Wrapper around gettext for programs using the msgid convention.
# Copyright (C) 1998, 2001, 2004 Free Software Foundation, Inc.
# Written by Paul Eggert <eggert@twinsun.com>.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU CC; see the file COPYING. If not, write to
# the Free Software Foundation, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# Always operate in the C locale.
LANG=C
LANGUAGE=C
LC_ALL=C
export LANG LANGUAGE LC_ALL
# Set AWK if environment has not already set it.
AWK=${AWK-awk}
# The argument to this wrapper is the xgettext command to be executed.
# Extract the xgettext program name from the rest of the command.
xgettext=${1?}
shift
# Save work if we're just wrapping a no-op.
case $xgettext in
:) exit;;
esac
# Find the files to be scanned, and the directory to scan them from.
directory=.
files=
for i
do
case $i in
--directory=*)
directory=`expr " $i" : ' --directory=\(.*\)'`;;
--files-from=*)
files_from=`expr " $i" : ' --files-from=\(.*\)'`
files=`$AWK '/^[^#]/ { print }' $files_from`;;
esac
done
# Generate keyword options for xgettext,
# by scanning for declarations of functions
# whose parameter names end in "msgid".
generate_keyword_options='
/^[A-Z_a-z].*\(.*msgid[,)]/ {
paren_index = index($0, "(")
name = substr($0, 1, paren_index - 1)
sub(/[^0-9A-Z_a-z]*$/, "", name)
sub(/[ ]+PARAMS/, "", name)
sub(/[ ]+VPARAMS/, "", name)
sub(/.*[^0-9A-Z_a-z]/, "", name)
args = substr($0, paren_index)
sub(/msgid[,)].*/, "", args)
for (n = 1; sub(/^[^,]*,/, "", args); n++) {
continue;
}
if (n == 1) {
keyword = name
} else {
keyword = name ":" n
}
if (! keyword_seen[keyword]++) {
print "--keyword=" keyword
}
}
'
keyword_options=`(
cd $directory &&
$AWK "$generate_keyword_options" $files < /dev/null
)` || exit
# Run the xgettext command, with extra input containing the extra
# msgids that it wouldn't normally find.
generate_emsgids='
/%e.*}/ {
line = $0
while ((percent_index = index(line, "%e")) != 0) {
line = substr(line, percent_index + 2)
bracket_index = index(line, "}")
if (bracket_index == 0) {
continue
}
msgid = substr(line, 1, bracket_index - 1)
if (index(msgid, "%") != 0) {
continue
}
printf "#line %d \"%s\"\n", FNR, FILENAME
printf "_(\"%s\")\n", msgid
line = substr(line, bracket_index + 1)
}
}
'
(cd $directory &&
$AWK "$generate_emsgids" $files < /dev/null
) | "$xgettext" $keyword_options ${1+"$@"} -