I have recently switched from working on Android in Eclipse to working on iOS apps in Xcode. I really liked the Eclipse XML editor interface (which has features like auto-complete, CDATA documentation tooltips, linking to schema libraries, and xml validation). Since Xcode is tough on my CPU and Eclipse is also fairly cpu-consuming (and having both open would be hectic), I have opted to not use Eclipse for XML editing, and to find something light-weight that fits the needs listed above.
So, as the title states, are there any free, light-weight xml and xml-schema editors available? I looked into CAM editor by Oracle, but could not find a way to add XML Schema catalogs. Apart from that, I have had little luck finding something.
I ended up downloading a bare-bones installation of Eclipse, and adding the webtools XML editor plugin. This came out to be about 90MB, and did not cause CPU issues.
Bare-Bones Eclipse download: http://download.eclipse.org/eclipse/downloads/drops4/S-4.3M2-201209201300/
Webtools plugin site url: http://download.eclipse.org/releases/juno/