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Item4788: $protected underflow

Item Form Data

AppliesTo: Component: Priority: CurrentState: WaitingFor: TargetRelease ReleasedIn
Extension WysiwygPlugin Normal Closed   n/a  

Edit Form Data

Reported By:
Applies To:
Current State:
Waiting For:
Target Release:
Released In:


There is a case where the $protected variable underflows in HTML2TML/Node.pm. This causes various formatting errors.

use case:

$tml = "---+ Mario Library Status
| %ICON{\"icon\"}%   [[URL][Label]]  |
Line 1
Line 2
print "\nTML:\n".$tml."\n";
$html = TWiki::Plugins::WysiwygPlugin::TranslateTML2HTML($tml, "", "");
print "\nBACK TO HTML:\n".$html."\n";
$tml = TWiki::Plugins::WysiwygPlugin::TranslateHTML2TML($html, "", "");
print "\nBACK TO TML:\n".$tml."\n";


     foreach my $tml (@regions) {
        if ($tml eq $WC::PON) {
        } elsif ($tml eq $WC::POFF) {
-            $protect-- ;
+            $protect-- if ($protect);

-- TWiki:Main/BuckGolemon - 09 Oct 2007

The cause of the unbalanced POFF is down to the _TDtrim on table cells. Just stopping the underflow treats the symptom, but not the disease.

I have modified the TDtrim to leave PON, though I can't think of a simple unit testcase frown


The cause I found was a table cell with both an %ICON% and a renamed link.

-- TWiki:Main.BuckGolemon - 09 Oct 2007

This is still an issue as of version 15146 (07 Oct 2007)

-- TWiki:Main.BuckGolemon - 09 Oct 2007

Summary $protected underflow
ReportedBy TWiki:Main.BuckGolemon

SVN Range TWiki-4.3.0, Sat, 06 Oct 2007, build 15172
AppliesTo Extension
Component WysiwygPlugin
Priority Normal
CurrentState Closed

Checkins TWikirev:15214 TWikirev:15215
TargetRelease n/a

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Topic revision: r6 - 2007-10-09 - BuckGolemon
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