We now maintain the invariant that when fetchImages is called,
all images have absolute paths.
This patch fixes several bugs relating to this as there are three places
where images can be introduced.
(1) During the HTML parse
(2) As spine elements
(3) As a cover image
For (1), the paths are corrected by the transformation renameImages
For (2) and (3), we need to append the "root" to the path we parse from the
spine
Before the images were relative to the position of the package file. The
collapse function changed this so that they were then absolute in the
archive but the fetchImages function wasn't updated to recognise this.
pandoc -t markdown-raw_html should not emit any raw HTML, even
span and div tags that go with pandoc Span and Div elements.
Cleaned up a bit of the logic with extensions and plain.
This changes the signature of the exported `readOMML` to `String ->
Either String [Exp]`, so it can now, in theory, be slotted into
TeXMath. It doesn't have any real error reporting yet, but that might
make more sense once I put it in a branch, and understand how it works
in the other readers.
It also now reads strings that parse to either oMath or oMathPara
elements. Note that the distinction is lost in the output. It's up to
the caller to remember the display type.
We still need to test against prefixes, but this is only going to look
at oMath fragments, so we're not going to be worried about looking up
the real namespace.
The new version of TeXMath can translate from its type system into
LaTeX. So instead of writing the LaTeX ourself, we write to the TeXMath
`Exp` type, and let TeXMath do the rest.
Using `map toUpper` to capitalise text is wrong, as e.g.
“Straße” should be converted to “STRASSE”, which is 1 character
longer. This commit adds a `capitalize` function and replaces
2 identical implementations in different modules (`toCaps` and
`capitalize`) with it.
* More consistent logic: absolute URIs are fetched from the net;
other things are treated as relative URIs if sourceURL is a Just,
otherwise as file paths.
* We escape characters that are not allowed in URIs before trying
to parse them (e.g. '|', which often occurs in the wild).
* When treating relative paths as local file paths, we drop
any fragment or query. This is useful e.g. when you've downloaded
web fonts locally, but your source still contains the original
relative URLs.
Together with the previous commit, this should close#1477.
* mkSelfContained now takes just two arguments, WriterOptions and
the string.
* It no longer looks in data files. This only made sense when we
had copies of slidy and S5 code there.
* Shared.fetchItem' is used instead of the nearly duplicate getItem.
