This change makes it possible to define a catch-all function using lua's
metatable lookup functionality.
function catch_all(el)
…
end
return {
setmetatable({}, {__index = function(_) return catch_all end})
}
A further effect of this change is that the map with filter functions
now only contains functions corresponding to AST element constructors.
Functions with a name that corresponds to an AST element are included in
implicit pandoc filter, but both `Meta` and `Pandoc` were wrongly
ignored till now.
Closes#3511.
Previously pandoc used the four-space rule: continuation paragraphs,
sublists, and other block level content had to be indented 4
spaces. Now the indentation required is determined by the
first line of the list item: to be included in the list item,
blocks must be indented to the level of the first non-space
content after the list marker. Exception: if are 5 or more spaces
after the list marker, then the content is interpreted as an
indented code block, and continuation paragraphs must be indented
two spaces beyond the end of the list marker. See the CommonMark
spec for more details and examples.
Documents that adhere to the four-space rule should, in most cases,
be parsed the same way by the new rules. Here are some examples
of texts that will be parsed differently:
- a
- b
will be parsed as a list item with a sublist; under the four-space
rule, it would be a list with two items.
- a
code
Here we have an indented code block under the list item, even though it
is only indented six spaces from the margin, because it is four spaces
past the point where a continuation paragraph could begin. With the
four-space rule, this would be a regular paragraph rather than a code
block.
- a
code
Here the code block will start with two spaces, whereas under
the four-space rule, it would start with `code`. With the four-space
rule, indented code under a list item always must be indented eight
spaces from the margin, while the new rules require only that it
be indented four spaces from the beginning of the first non-space
text after the list marker (here, `a`).
This change was motivated by a slew of bug reports from people
who expected lists to work differently (#3125, #2367, #2575, #2210,
#1990, #1137, #744, #172, #137, #128) and by the growing prevalance
of CommonMark (now used by GitHub, for example).
Users who want to use the old rules can select the `four_space_rule`
extension.
* Added `four_space_rule` extension.
* Added `Ext_four_space_rule` to `Extensions`.
* `Parsing` now exports `gobbleAtMostSpaces`, and the type
of `gobbleSpaces` has been changed so that a `ReaderOptions`
parameter is not needed.
Previously only `[-@roe]` (with brackets) was recognized as
suppress-author, and `-@roe` was treated the same as `@roe`.
Closesjgm/pandoc-citeproc#237.
We now allow default output to stdout when it can be
determined that the output is being piped. (On Windows,
as mentioned before, this can't be determined.)
Using '-o -' forces output to stdout regardless.
Acronyms are not resolved by the reader, but acronym and glossary information is put into attributes on Spans so that they can be processed in filters.
Previously, for binary formats, output to stdout was disabled
unless we could detect that the output was being piped (and not
sent to the terminal). Unfortunately, such detection is not
possible on Windows, leaving windows users no way to pipe binary
output. So we have changed the behavior in the following way:
* If the -o option is not used, binary output is never sent
to stdout by default; instead, an error is raised.
* IF '-o -' is used, binary output is sent to stdout, regardless
of whether it is being piped. This works on Windows too.
Instead, just try running it and raise the exception if it
isn't found at that point.
This improves things for users of Cygwin on Windows, where
the executable won't be found by `findExecutable` unless
`.exe` is added.
The same exception is raised as before, but at a later
point.
Closes#3819.
The structure expected is:
<div class="columns">
<div class="column" width="40%">
contents...
</div>
<div class="column" width="60%">
contents...
</div>
</div>
Support has been added for beamer and all HTML slide formats.
Closes#1710.
Note: later we could add a more elegant way to create
this structure in Markdown than to use raw HTML div elements.
This would come for free with a "native div syntax" (#168).
Or we could devise something specific to slides
