Rewrote features test to remove all unimplemented features.
There are now all three examples of where an image can be included in
the test.
1. Cover image
2. As a spine elemnt
3. In the document
Tests have also been added to make sure that the mediabag contains all
these images after processing.
Renamed epub test files so they're identified more clearly as
epub: features.{epub,native} -> epub.features.{epub,native},
and similarly with formatting.{epub,native}.
Added epub test files to cabal file, so they'll be included in
the tarball.
This will allow us to test the whole mediabag (making sure, for example,
that images are added with the correct keys) instead of just individual
extracted images. We compare each entry in the media bag to an image
extracted on the fly from the docx. As a result, we only need one file
to test with.
The image in the current tests was also replaced with a smaller one.
Moved `MediaBag` definition and functions from Shared:
`lookupMedia`, `mediaDirectory`, `insertMedia`, `extractMediaBag`.
Removed `emptyMediaBag`; use `mempty` instead, since `MediaBag`
is a Monoid.
http://txt2tags.org/
There are two points which currently do not match the official
implementation.
1. In the official implementation lists can not be nested like the
following but the reader would interpret this as a bullet list with the
first item being a numbered list.
```
- + This is not a list
```
2. The specification describes how URIs automatically becomes links.
Unfortunately as is often the case, their definitiong of URI is not
clear. I tried three solutions but was unsure about which to adopt.
* Using isURI from Network.URI, this matches far too many strings and is
therefore unsuitable
* Using uri from Text.Pandoc.Shared, this doesn't match all strings that
the reference implementation matches
* Try to simulate the regex which is used in the native code
I went with the third approach but it is not perfect, for example
trailing punctuation is captured in Urls.
mtl switched from ErrorT to ExceptT, but we're not sure which mtl we'll
be dealing with. This should make errors work with both.
The main difference (beside the name of the module and the monad
transformer) is that Except doesn't require an instance of an Error
Typeclass. So we define that for compatability. When we switch to a
later mtl, using Control.Monad.Exception, we can just erase the instance
declaration, and all should work fine.
With the move from parsec to attoparsec, we lost good error
reporting. In fact, since we weren't testing for end of input,
malformed templates would fail silently. Here we revert back to
Parsec for better error messages.
This has fixes for unicode path names. Note that compiling
pandoc against zip-archive 0.2.3 or 0.2.3.1 will lead to invalid
zip containers, causing LibreOffice (e.g.) to regard ODTs as corrupt.
