build/i18n-scan.pl: avoid a possible endless loop

[project/luci.git] / build / i18n-scan.pl

diff --git a/build/i18n-scan.pl b/build/i18n-scan.pl
index 8807384..3f73271 100755 (executable)
--- a/build/i18n-scan.pl
+++ b/build/i18n-scan.pl
@@ -64,6 +64,10 @@ if( open F, "find @ARGV -type f '(' -name '*.htm' -o -name '*.lua' ')' |" )
                                        {
                                                ( $sub, $code ) = extract_delimited($code, q{'"}, q{\s*(?:\.\.\s*)?});
 
+                                               if( length($sub) < 1 ) {
+                                                       undef $sub;
+                                               }
+
                                                if( defined $sub )
                                                {
                                                        $res .= substr $sub, 1, length($sub) - 2;