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-rw-r--r--gettext-tools/src/x-lua.c27
-rw-r--r--gettext-tools/tests/Makefile.am2
-rwxr-xr-xgettext-tools/tests/xgettext-lua-stackovfl-163
-rwxr-xr-xgettext-tools/tests/xgettext-lua-stackovfl-256
-rwxr-xr-xgettext-tools/tests/xgettext-lua-stackovfl-383
-rwxr-xr-xgettext-tools/tests/xgettext-lua-stackovfl-478
6 files changed, 308 insertions, 1 deletions
diff --git a/gettext-tools/src/x-lua.c b/gettext-tools/src/x-lua.c
index 5dbc94c68..e8602e078 100644
--- a/gettext-tools/src/x-lua.c
+++ b/gettext-tools/src/x-lua.c
@@ -1,5 +1,5 @@
/* xgettext Lua backend.
- Copyright (C) 2012-2013, 2016, 2018-2020 Free Software Foundation, Inc.
+ Copyright (C) 2012-2013, 2016, 2018-2023 Free Software Foundation, Inc.
This file was written by Ľubomír Remák <lubomirr@lubomirr.eu>, 2012.
@@ -38,6 +38,7 @@
#include "xg-arglist-parser.h"
#include "xg-message.h"
#include "error.h"
+#include "error-progname.h"
#include "xalloc.h"
#include "gettext.h"
#include "po-charset.h"
@@ -1010,6 +1011,14 @@ x_lua_lex (token_ty *tok)
static flag_context_list_table_ty *flag_context_list_table;
+/* Maximum supported nesting depth. */
+#define MAX_NESTING_DEPTH 1000
+
+/* Current nesting depths. */
+static int paren_nesting_depth;
+static int bracket_nesting_depth;
+
+
/* The file is broken into tokens. Scan the token stream, looking for
a keyword, followed by a left paren, followed by a string. When we
see this sequence, we have something to remember. We assume we are
@@ -1084,6 +1093,12 @@ extract_balanced (message_list_ty *mlp, token_type_ty delim,
continue;
case token_type_lparen:
+ if (++paren_nesting_depth > MAX_NESTING_DEPTH)
+ {
+ error_with_progname = false;
+ error (EXIT_FAILURE, 0, _("%s:%d: error: too many open parentheses"),
+ logical_file_name, line_number);
+ }
if (extract_balanced (mlp, token_type_rparen,
inner_context, next_context_iter,
arglist_parser_alloc (mlp,
@@ -1092,6 +1107,7 @@ extract_balanced (message_list_ty *mlp, token_type_ty delim,
arglist_parser_done (argparser, arg);
return true;
}
+ paren_nesting_depth--;
next_context_iter = null_context_list_iterator;
state = 0;
break;
@@ -1108,6 +1124,12 @@ extract_balanced (message_list_ty *mlp, token_type_ty delim,
continue;
case token_type_lbracket:
+ if (++bracket_nesting_depth > MAX_NESTING_DEPTH)
+ {
+ error_with_progname = false;
+ error (EXIT_FAILURE, 0, _("%s:%d: error: too many open brackets"),
+ logical_file_name, line_number);
+ }
if (extract_balanced (mlp, token_type_rbracket,
null_context, null_context_list_iterator,
arglist_parser_alloc (mlp, NULL)))
@@ -1115,6 +1137,7 @@ extract_balanced (message_list_ty *mlp, token_type_ty delim,
arglist_parser_done (argparser, arg);
return true;
}
+ bracket_nesting_depth--;
next_context_iter = null_context_list_iterator;
state = 0;
break;
@@ -1225,6 +1248,8 @@ extract_lua (FILE *f,
phase4_pushback_length = 0;
flag_context_list_table = flag_table;
+ paren_nesting_depth = 0;
+ bracket_nesting_depth = 0;
init_keywords ();
diff --git a/gettext-tools/tests/Makefile.am b/gettext-tools/tests/Makefile.am
index bd5e357c9..89751fbc8 100644
--- a/gettext-tools/tests/Makefile.am
+++ b/gettext-tools/tests/Makefile.am
@@ -122,6 +122,8 @@ TESTS = gettext-1 gettext-2 \
xgettext-lisp-1 xgettext-lisp-2 \
xgettext-lisp-stackovfl-1 xgettext-lisp-stackovfl-2 \
xgettext-lua-1 xgettext-lua-2 \
+ xgettext-lua-stackovfl-1 xgettext-lua-stackovfl-2 \
+ xgettext-lua-stackovfl-3 xgettext-lua-stackovfl-4 \
xgettext-objc-1 xgettext-objc-2 \
xgettext-perl-1 xgettext-perl-2 xgettext-perl-3 xgettext-perl-4 \
xgettext-perl-5 xgettext-perl-6 xgettext-perl-7 xgettext-perl-8 \
diff --git a/gettext-tools/tests/xgettext-lua-stackovfl-1 b/gettext-tools/tests/xgettext-lua-stackovfl-1
new file mode 100755
index 000000000..227855b63
--- /dev/null
+++ b/gettext-tools/tests/xgettext-lua-stackovfl-1
@@ -0,0 +1,63 @@
+#! /bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test Lua support: stack overflow prevented by nesting depth check.
+
+cat <<EOF > xg-lu-so-1.lua
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+(((((((((((((((((((((((((((((((((((((((((((((((((
+_("Hello!")
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+)))))))))))))))))))))))))))))))))))))))))))))))))
+EOF
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} --omit-header --no-location -d xg-lu-so-1.tmp xg-lu-so-1.lua || Exit 1
+LC_ALL=C tr -d '\r' < xg-lu-so-1.tmp.po > xg-lu-so-1.po || Exit 1
+
+cat <<EOF > xg-lu-so-1.ok
+msgid "Hello!"
+msgstr ""
+EOF
+
+: ${DIFF=diff}
+${DIFF} xg-lu-so-1.ok xg-lu-so-1.po
+result=$?
+
+exit $result
diff --git a/gettext-tools/tests/xgettext-lua-stackovfl-2 b/gettext-tools/tests/xgettext-lua-stackovfl-2
new file mode 100755
index 000000000..eab9fd169
--- /dev/null
+++ b/gettext-tools/tests/xgettext-lua-stackovfl-2
@@ -0,0 +1,56 @@
+#! /bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test Lua support: stack overflow prevented by nesting depth check.
+
+cat <<EOF > xg-lu-so-2.lua
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+((((((((((((((((((((((((((((((((((((((((((((((((((
+_("Hello!")
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+))))))))))))))))))))))))))))))))))))))))))))))))))
+EOF
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} --omit-header --no-location -d xg-lu-so-2.tmp xg-lu-so-2.lua 2>xg-lu-so-2.err
+result=$?
+cat xg-lu-so-2.err
+test $result = 1 || Exit 1
+
+exit 0
diff --git a/gettext-tools/tests/xgettext-lua-stackovfl-3 b/gettext-tools/tests/xgettext-lua-stackovfl-3
new file mode 100755
index 000000000..723f03012
--- /dev/null
+++ b/gettext-tools/tests/xgettext-lua-stackovfl-3
@@ -0,0 +1,83 @@
+#! /bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test Lua support: stack overflow prevented by nesting depth check.
+
+cat <<EOF > xg-lu-so-3.lua
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+_("Hello!")
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+EOF
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} --omit-header --no-location -d xg-lu-so-3.tmp xg-lu-so-3.lua || Exit 1
+LC_ALL=C tr -d '\r' < xg-lu-so-3.tmp.po > xg-lu-so-3.po || Exit 1
+
+cat <<EOF > xg-lu-so-3.ok
+msgid "Hello!"
+msgstr ""
+EOF
+
+: ${DIFF=diff}
+${DIFF} xg-lu-so-3.ok xg-lu-so-3.po
+result=$?
+
+exit $result
diff --git a/gettext-tools/tests/xgettext-lua-stackovfl-4 b/gettext-tools/tests/xgettext-lua-stackovfl-4
new file mode 100755
index 000000000..05a5e2dfa
--- /dev/null
+++ b/gettext-tools/tests/xgettext-lua-stackovfl-4
@@ -0,0 +1,78 @@
+#! /bin/sh
+. "${srcdir=.}/init.sh"; path_prepend_ . ../src
+
+# Test Lua support: stack overflow prevented by nesting depth check.
+
+cat <<EOF > xg-lu-so-4.lua
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [
+[
+_("Hello!")
+]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
+EOF
+
+: ${XGETTEXT=xgettext}
+${XGETTEXT} --omit-header --no-location -d xg-lu-so-4.tmp xg-lu-so-4.lua 2>xg-lu-so-4.err
+result=$?
+cat xg-lu-so-4.err
+test $result = 1 || Exit 1
+
+exit 0
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