Now RTL is turned and off by a general function, `withDirection`
wrapping `inlineToOpenXML` and `blockToOpenXML`. This acts according to
the `envRTL` variable. This means we can just set the environment at the
outset, and change the environment with `local` as need be.
Note that this requires making the `inlineToOpenXML` and
`blockToOpenXML` functions into wrappers around
primed-versions (`{inline,block}ToOpenXML`) where the real work takes
place.
In general, we want things that are either:
1. unchanging environment variables, or
2. environment variables that will change for a the scope of
a function and then pop back
to be in the reader monad. This is safer for (1), since we won't
accidentally change it, and easier for (2), since we can use `local`
instad of setting the old value and then resetting.
We keep the StateT monad for values that we will want to accumulate or
change and then use later.
We had to use this because we set the env, which means that setRTL
wouldn't do anything at the top level. We now don't set the env (it will
always be false at the outset), which means the toplevel setRTL will
work if necessary.
This will allow us to add text and paragraph properties depending on if
rtl is already set or not.
(It would probably be cleaner and safer to move the paraprops and
textprops to this part of the stack in the future.)
In AsciiDoc, you must use a special form of emphasis (double `__`)
for intraword emphasis. Pandoc was previously using this more
than necessary.
Closes#3068.
Thanks to Václav Haisman. This accompanies #3093.
This change allows users to set the default figure placement
for figures, instead of enforcing one choice.
Users with custom templates will need to add this.
If the `$DATADIR/filters` is present, pandoc will look in it for filters
specified without a path, before looking in the $PATH. Note that unlike
executables in $PATH, the `filters` dir may contain scripts that are not
executable (pandoc will try to execute them using an associated
interpreter, if possible).
Note: the `filters` dir has priority over the user path. In order of
preference, pandoc will look in:
1. a specified full or relative path (executable or non-executable)
2. `$DATADIR/filters` (executable or non-executable)
3. `$PATH` (executable only)
This closes#3127.
