Graphics in `\section`/`\subsection` etc titles need to be `\protect`ed.
This adds a state value and manually turns it on before every invocation
of `sectionHeader` and manually turns it off after. Using a writer value
and applying `local` would probably be cleaner, but this fits with the
current style.
Currently, pandoc has hard-coded the following in order to make tight lists in
LaTeX:
```hs
text "\\itemsep1pt\\parskip0pt\\parsep0pt"
```
Which is fine, but does not allow customizations. For example, the `memoir`
class already has a `\tightlist` declaration for this purpose:
```tex
\newcommand{\tightlist}{%
\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
```
I'm proposing to use a similar solution:
```diff
@@ In Writers/LaTeX.hs:
-then text "\\itemsep1pt\\parskip0pt\\parsep0pt"
+then text "\\tightlist"
@@ In templates/default.latex:
+\newcommand{\tightlist}{%
+ \setlength{\itemsep}{1pt}\setlength{\parskip}{0pt}\setlength{\parsep}{0pt}}
```
This allows us to customize the tightness to our needs.
Backward Compatibility
If a person is using a custom LaTeX template (not based upon the `memoir`
class), the `\tightlist` declaration must be added.
Because of the built-in line skip, LaTeX can't handle a section header
as the first element in a list item. (To be precise, it can't handle it
if the list immediately follows a section header, but the instance is
rare enough that we can afford to be a bit more general). This puts a
non-breaking space before the header to solve this problem. We won't see
this space, since the header skips a line before printing anyway.
The output is ugly in LaTeX and this structure seems like it should
probably be avoided. But it is valid HTML and native pandoc, so we
should have some sort of typesettable representation in LaTeX.
Currently, pandoc has hard-coded the following in order to make horizontal
rules in LaTeX:
```hs
"\\begin{center}\\rule{3in}{0.4pt}\\end{center}"
```
Which is fine, but does not allow customizations. It also does not take into
consideration the current line width.
I'm proposing this change:
```diff
@@ In Writers/LaTeX.hs:
-"\\begin{center}\\rule{3in}{0.4pt}\\end{center}"
+"\\begin{center}\\rule{0.5\\linewidth}{\\linethickness}\\end{center}"
```
These previously produced invalid LaTeX: `\paragraph` or
`\subparagraph` in a `quote` environment. This adds an
`mbox{}` in these contexts to work around the problem.
See http://tex.stackexchange.com/a/169833/22451.
Closes#1221.
Going forward we'll use pandoc-citeproc, as an external filter.
The `--bibliography`, `--csl`, and `--citation-abbreviation` fields
have been removed. Instead one must include `bibliography`, `csl`,
or `csl-abbrevs` fields in the document's YAML metadata. The filter
can then be used as follows:
pandoc --filter pandoc-citeproc
The `Text.Pandoc.Biblio` module has been removed. Henceforth,
`Text.CSL.Pandoc` from pandoc-citations can be used by library users.
The Markdown and LaTeX readers now longer format bibliographies and
citations. That must be done using `processCites` or `processCites'`
from Text.CSL.Pandoc.
All bibliography-related fields have been removed from `ReaderOptions`
and `WriterOptions`: `writerBiblioFiles`, `readerReferences`,
`readerCitationStyle`.
API change.
