/ 
Tk-804.036
River stage three • 168 direct dependents • 183 total dependents
/ Tk::TextUndo
Security Advisories (4)
CVE-2007-4769 (2008-01-09)

The regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (backend crash) via an out-of-bounds backref number.

CVE-2018-25032 (2022-03-25)

zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

CVE-2011-3045 (2012-03-22)

Integer signedness error in the png_inflate function in pngrutil.c in libpng before 1.4.10beta01, as used in Google Chrome before 17.0.963.83 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PNG file, a different vulnerability than CVE-2011-3026.

CVE-2016-10087 (2017-01-30)

The png_set_text_2 function in libpng 0.71 before 1.0.67, 1.2.x before 1.2.57, 1.4.x before 1.4.20, 1.5.x before 1.5.28, and 1.6.x before 1.6.27 allows context-dependent attackers to cause a NULL pointer dereference vectors involving loading a text chunk into a png structure, removing the text, and then adding another text chunk to the structure.

NAME

Tk::TextUndo - perl/tk text widget with bindings to undo changes.

SYNOPSIS

use Tk::TextUndo;

$testundo = $parent->TextUndo(?-option=>value, ...?);

DESCRIPTION

This IS-A text widget with an unlimited 'undo' history but without a re'undo' capability.

Bindings

The TextUndo widget has the same bindings as the Text widget. In addition there are the following bindings:

Event <L4> <<Undo>>

undo the last change. Pressing <L4> several times undo step by step the changes made to the text widget.

Methods

The TextUndo widget has the same methods as Text widget. Additional methods for the TextUndo widget are:

$text->Load($filename);

Loads the contents of the $filename into the text widget. Load() delete the previous contents of the text widget as well as its undo history of the previous file.

$text->Save(?$otherfilename?)

Save contents of the text widget to a file. If the $otherfilename is not specified, the text widget contents writes the file of $filename used in the last Load() call. If no file was previously Load()'ed an error message pops up. The default filename of the last Load() call is not overwriten by $otherfilename.

$text->FileName(?$otherfilename?)

If passed an argument sets the file name associated with the loaded document. Returns the current file name associated with the document.

KEYS

widget, text, undo

SEE ALSO

Tk::Text, Tk::ROText