Adding ability to define custom font families. Needed for correct polyglossia operation with Cyrillic fonts and perhaps can find some other usages.
Example usage in YAML metadata:
```
fontfamilies:
- name: \cyrillicfont
font: Liberation Serif
- name: \cyrillicfonttt
options: Scale=MatchLowercase
font: Liberation Mono
```
Thus you can say `papersize: a4` and the latex will contain
`a4paper`.
This change may break some existing workflows; if you currently
specify `a4paper`, you'll get `a4paperpaper` which is meaningless.
However, the change seems worth it, as it will make the
`papersize` variable work uniformly across ConTeXt, LaTeX,
and html->pdf via wkhtmltopdf.
The color options are only used for setting the link colour; it is otherwise redundant (someone wanting to add colour to other parts of the document will likely have more complex needs).
`header-includes` now occurs before setting of title,
author, etc. This allows you to include a definition of
`\subtitle`, for example, before `\subtitle` is called.
Redefining of `\paragraph` and `\subparagraph` now occurs
before `header-includes` rather than after.
The fallback definition is a no-op. In a class that does not
define `\subtitle`, the `subtitle` will not appear.
This changes earlier behavior, which was to add the subtitle
to the title. This had bad results with page headers etc.
This reflects the default behaviour of `hyperref` when `colorlinks` is not enabled (but instead sets the colour to black when it is not specified by the user, for the sake of simplicity).
This avoids the ‘use `Ligatures=TeX` instead of `Mapping=tex-text`’
warning when using LuaTeX. The manual clarifies: “for consistency
`Ligatures=TeX` will perform the same function as `Mapping=tex-text`.”
`fontenc` allows for a different encoding: closes#112.
`indent` and `subparagraph` allow the default Pandoc overrides for
these features to be disabled.
Adds new language and bidi variables; removes duplicated
`\VerbatimFootnotes`.
The standard `fontspec` variables, previously omitted, are now
included. Beamer defaults to the font set as `sansfont`. If `mainfont`
is set, the `serif` font theme will also be used, which uses this for
the slide text (does not have to be a serif font per se).
The paragraph indentation and use of the `url` package seem to have had
no visible effect, and have been removed.
There are several conflicts that are raised when you use tufte-handout
layout with the default.latex template, namely hyperref and color, which
are already loaded by the class.
This commit enables to only load `hyperref` and `color` packages if they
are not already loaded (by Tufte).
Add a variable "hidelinks" to allow to hide links as plain text in LaTeX. It removes any color and borer. The variable does not need any particular argument (see https://www.tug.org/applications/hyperref/manual.html)
Works only with xelatex.
This is not a big deal since when it hits on a utf8 unknown char (say Asian script), pandoc suggests to switch to the xelatex engine.
This avoids a warning: “Package bidi Error: Oops! you have loaded package
hyperref after bidi package. Please load package hyperref before bidi package,
and then try to run xelatex on your document again.”
Closes#96.
