+ # We will do a convergence test if 3 or more iterations are allowed.
+ # It would be pointless for fewer because we have to make at least
+ # two passes before we can see if we are converged, and the test
+ # would just slow things down.
+ my $max_iterations = $rOpts->{'iterations'};
+ my $convergence_log_message;
+ my %saw_md5;
+ my $do_convergence_test = $max_iterations > 2;
+ if ($do_convergence_test) {
+ eval "use Digest::MD5 qw(md5_hex)";
+ $do_convergence_test = !$@;
+ }
+
+ # save objects to allow redirecting output during iterations
+ my $sink_object_final = $sink_object;
+ my $debugger_object_final = $debugger_object;
+ my $logger_object_final = $logger_object;
+
+ for ( my $iter = 1 ; $iter <= $max_iterations ; $iter++ ) {
+
+ # send output stream to temp buffers until last iteration
+ my $sink_buffer;
+ if ( $iter < $max_iterations ) {
+ $sink_object =
+ Perl::Tidy::LineSink->new( \$sink_buffer, $tee_file,
+ $line_separator, $rOpts, $rpending_logfile_message,
+ $binmode );
+ }
+ else {
+ $sink_object = $sink_object_final;
+ }
+
+ # Save logger, debugger output only on pass 1 because:
+ # (1) line number references must be to the starting
+ # source, not an intermediate result, and
+ # (2) we need to know if there are errors so we can stop the
+ # iterations early if necessary.
+ if ( $iter > 1 ) {
+ $debugger_object = undef;
+ $logger_object = undef;
+ }
+
+ #------------------------------------------------------------
+ # create a formatter for this file : html writer or
+ # pretty printer
+ #------------------------------------------------------------
+
+ # we have to delete any old formatter because, for safety,
+ # the formatter will check to see that there is only one.
+ $formatter = undef;
+
+ if ($user_formatter) {
+ $formatter = $user_formatter;
+ }
+ elsif ( $rOpts->{'format'} eq 'html' ) {
+ $formatter =
+ Perl::Tidy::HtmlWriter->new( $fileroot, $output_file,
+ $actual_output_extension, $html_toc_extension,
+ $html_src_extension );
+ }
+ elsif ( $rOpts->{'format'} eq 'tidy' ) {
+ $formatter = Perl::Tidy::Formatter->new(
+ logger_object => $logger_object,
+ diagnostics_object => $diagnostics_object,
+ sink_object => $sink_object,
+ );
+ }
+ else {
+ die "I don't know how to do -format=$rOpts->{'format'}\n";
+ }