Free xml editor software for linux

tX, formerly known as Teddy, is a tabular XML editor. tX XML editor presents the structure and content of XML files in a way that is both visually pleasing and easy to use.
Its features include the abiltiy to view XML in an hierarchical way without extraneous syntax or interface elements, edit data like a spreadsheet, enter data without having to worry about encoding rules, make major structural changes with minimal effort, cut and paste between most spreadsheet applications, and export to HTML.
Main features:
- Teddy is now rebranded as tX - Tabular XML editor.
- Compilation under Qt4.
- Elements without subelements have a closing "../>" instead of .
- Attribute-value quotes changed from to ".
- New menu icons - some original, some from art.gnome.org.
- German language translation.
- A new tab called "Help Text" provides a generic help-system for XML-Files. In this tab it is possible to display user documentation: If either the working-directory or the directory of the current xml file has a sub-directory with the name of the DTD, a right-click on an element ( ) will load and display a file called "element_name.html" in the QTextBrowser-Widget. A right-click on the attribute (attribute-name="...") will jump to the "element_name.html#attribute_name" section of the html help file.

Teddy is a tabular editor and display for XML files. It presents the structure and content of XML files in a way that is both visually pleasing and easy to use. It is available free, under the GNU public license, for Mac OS X and Linux.
If you have Qt for Windows it should build and run fine for it, but it has not been tested on that operating system.
Enhancements:
- Ability to open currently opened file in external text editor.
- Linux RPM installs application icon and start menu item in KDE.
- Save no longer forces scroll position to the top.
- Single line cell styles now correctly dimensioned.

XMLmind XML Editor project is a validating XML editor featuring a word processor-like view.
- makes content authors more productive
- excels at editing a mix of XML data and XML document
- has an integrated spreadsheet engine which makes it suitable for a broad range of applications
- is highly extensible and its extensions are easy to deploy
XMLmind XML Editor is available in two editions: Standard Edition and Professional Edition. Standard Edition is free of charge but has fewer features than Professional Edition.
Main features:
- Supports the DTD, W3C XML Schema, RELAX NG schemas, XML namespace, XSLT, XPath, XInclude, XML catalog standards.
- Editing commands are DTD/schema aware. This makes creating invalid documents almost impossible.
- Word processor-like views are configured using cascading style sheets (CSS2).
- When a CSS style sheet is not available for a document, a fully editable tree view is used instead of the word processor-like view.
- Multiple, synchronized, views can be used to edit the same document.
- Standard controls such as buttons, check boxes, combo boxes, text fields, etc, can be embedded in the word processor-like view. With this feature, XXE can be used to edit XML data, XML documents or a mix of both content types.
- Has an easy to use and yet extremely powerful integrated spreadsheet engine.
- Can transform the document being edited using a built-in XSLT engine and FO processor plug-ins.
- Supports many image formats (GIF, JPEG, PNG, SVG, TIFF, BMP, EPS, PDF, etc) through the use of image toolkit plug-ins.
- Can be used to edit documents stored on an FTP or WebDAV server.
- Ready-to-use support for XHTML (including HTML.4 tables and forms), DocBook (including CALS tables), Simplified DocBook, Slides.
- Fully customizable, fully extensible (yes, really!); and much can be done without programming.
- Comprehensive documentation, including many tutorials.
- Configuration files and Jar files containing extension code can be centralized on an HTTP or FTP server.
- Professional Edition can be deployed using JavaTM Web Start.
- Localized to English, French, German and Czech. Spell checker with dictionaries for English, French, German and Spanish.
- Multi-platform: Windows, Linux, MacOS X.
- Full source code included in Professional Edition.

Openbox menu editor program is a tool that simplifies the process of editing Openboxs complex XML-based menu file.

XML::ValidWriter is DOCTYPE driven valid XML output.

SYNOPSIS

## As a normal perl object:
$writer = XML::ValidWriter->new(
DOCTYPE => $xml_doc_type,
OUTPUT => *FH
) ;
$writer->startTag( b1 ) ;
$writer->startTag( c2 ) ;
$writer->end ;

## Writing to a scalar:
$writer = XML::ValidWriter->new(
DOCTYPE => $xml_doc_type,
OUTPUT => $buf
) ;

## Or, in scripting mode:
use XML::Doctype NAME => a, SYSTEM_ID => a.dtd ;
use XML::ValidWriter qw( :all :dtd_tags ) ;
b1 ; # Emits < a >< b1 >
c2( attr=>"val" ) ; # Emits < /b1 >< b2 >< c2 attr="val" >
endAllTags ; # Emits < /c2 >< /b2 >< /a >

## If youve got an XML::Doctype object handy:
use XML::ValidWriter qw( :dtd_tags ), DOCTYPE => $doctype ;

## If youve saved a preparsed DTD as a perl module
use FooML::Doctype::v1_0001 ;
use XML::ValidWriter qw( :dtd_tags ) ;

#
# This all assumes that the DTD contains:
#
# < !ELEMENT a ( b1, b2?, b3* ) >
#
# < !ELEMENT b1 ( c1 ) >
# < !ELEMENT b2 ( c2 ) >
#

STATUS

Alpha. Use and patch, dont depend on things not changing drastically.
Many methods supplied by XML::Writer are not yet supplied here.

XML Security Library is a C library based on LibXML2.
The library supports major XML security standards:
- XML Signature
- XML Encryption
- Canonical XML (was included in LibXML2)
- Exclusive Canonical XML (was included in LibXML2)
XML Security Library is released under the MIT Licence see the Copyright file in the distribution for details.

XML::DOM2 is a DOM controlled, strict XML module for extentable xml objects.
XML::DOM2 is yet _another_ perl XML module.
Main features:
- DOM Level2 Compilence in both document, elements and attributes
- NameSpace control for elements and attributes
- XPath (its just one small method once you have a good DOM)
- Extendability:
- Document, Element or Attribute classes can be used as base class for other kinds of document, element or attribute.
- Element and Attribute Handler allows element specific child elements and attribute objects.
- Element and Attribute serialisation overiding.
- Parsing with SAX (use XML::SAX::PurePerl for low dependancy installs)
- Internal serialisation

VTD-XML is a "non-extractive" XML processing software API implementing Virtual Token Descriptor. Currently, VTD-XML only supports built-in entity references (" &s ><<less