Tree Editor TrEd

Copyright (c) 2000-2004 by Petr Pajas

This is a free software distributed under GPL - The General Public Licence
Full text of the GPL can be found at http://www.gnu.org/copyleft/gpl.html

Description

TrEd is a graphical editor and viewer of tree structures. Internally TrEd works with files in so called FS-format (a legacy data format developed by M. Kren for his tree editor Graph) and used for syntactical and tectogrammatical trees in The Prague Dependency Treebank.

TrEd has a modular architecture allowing custom input/output modules to be added in order to support other data formats. As for now, TrEd also handles CSTS SGML files (using James Clark's nsgmls parser) and can read Annotation Graphs XML format used by LDC for Arabic treebanking. Another XML format, called TrXML and mentioned in the documentation, is still experimental.

TrEd may be extended by user-defined macros written in Perl with many pre-defined functions for handling trees. Macros may be bound with keyboard shortcuts and/or added to a user-definable menu.

There is also a non-graphical (off-line) variant of TrEd called btred - "Batch-mode Tree Editor" - which allows user to run macros on trees without having to enter the graphical interface and a tool called ntred allowing btred processing to be distributed over several servers.

TrEd supports the following platforms (see installation instructions for details):

• Windows 95/98/ME or Windows NT/2000/XP (TM)
• Linux
• BSD, UNIX, Solaris (TM) and other UNIX-based systems

For more information, read the DOCUMENTATION here.

Instalation Packages

The following files are located in Tools/Tred/ directory of PCEDT Distribution or can be downloaded from the TrEd Homepage

tred_wininst_en.zip

This is an installation/upgrade package intended for Windows users. It contains ActivePerl, PerlTk, and TrEd. To install or upgrade, unzip the package and run setup.bat. This package is not intended for use with Perl provided by CygWin. If you realy wish to use CygWin Perl with TrEd, use Unix instalation below - but then you will be forced to use TrEd with CygWin XFree86. If you want a native Windows version, install ActivePerl (setup.bat will do that for you).

tred-current.tar.gz

This is the latest TrEd distribution package. It runs on all supported platforms, but is mainly intended for Linux/Unix users. Simply untar/ungzip the package and run tred/tred. First, however, make sure, that Perl and Perl-Tk are installed on your system. Since Perl has been most probably installed together with your Linux/Unix distribution, you only need the Perl-Tk library from the dependency package below.

tred-dep-unix.tar.gz

This package contains Linux/Unix dependencies. More specifically, it contains sources for the Perl-Tk module as well as for some other recommended Perl modules that might be used by some specific TrEd macros. The install script contained in the package allows automatic installation of all these modules.