THIS IS OBSOLETE AS OF (at least) 2014. PLEASE VISIT https://github.com/transpect/epubcheck-transpect
FOR AN ALTERNATIVE AND MORE UP-TO-DATE IMPLEMENTATION THAT CREATES AN HTML REPORT.

This is a reimplementation and extension of epubcheck, using 
XML Calabash and Saxon.

It includes a CSS parser implemented in XSLT2 (in order to
run checks against certain CSS constructs that don't translate
well in kindlegen, for example).

Custom Schematron files may be specified on the command line.

THIS IS WORK IN PROGRESS. DON'T EXPECT ANYTHING YET.

In particular, not all current epubcheck functionality has been
implemented.

To do:
- calabash extension for reading image information (type,
  resolution, color space)
- ...

For the time being, you'll have to manually check out and update
http://epubcheck.googlecode.com/svn/branches/epub3/com.adobe.epubcheck/src/com/adobe/epubcheck
as epubcheck-xproc/epubcheck

Sample invocation:
$ ./calabash.sh -o result=report.html  xproc/kindle.xpl epubdir=../test/CSS-Compatibility-Test\ Suite
Relative filenames are relative to the xproc subdir.

Authors:
Philipp Glatza, le-tex publishing services GmbH
Gerrit Imsieke, le-tex publishing services GmbH
Martin Kraetke, le-tex publishing services GmbH
Grit Rolewski, le-tex publishing services GmbH
Jan Schilbach, le-tex publishing services GmbH
Lars Wittmar, le-tex publishing services GmbH

Copyright (c) 2011, le-tex publishing services GmbH
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

- Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in
  the documentation and/or other materials provided with the
  distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.