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2016-07-01Org reader: support archived trees export optionsAlbert Krewinkel2-8/+62
Handling of archived trees can be modified using the `arch` option. Archived trees are either dropped, exported completely, or collapsed to include just the header when the `arch` option is nil, non-nil, or `headline`, respectively.
2016-07-01Org reader: refactor comment tree handlingAlbert Krewinkel1-1/+20
Comment trees were handled after parsing, as pattern matching on lists is easier than matching on sequences. The new method of reading documents as trees allows for more elegant subtree removal.
2016-07-01Org reader: parse as headlines, convert to blocksAlbert Krewinkel1-47/+86
Emacs org-mode is based on outline-mode, which treats documents as trees with headlines are nodes. The reader is refactored to parse into a similar tree structure. This simplifies transformations acting on document (sub-)trees.
2016-07-01Org reader: improve tag and properties type safetyAlbert Krewinkel1-25/+57
Specific newtype definitions are used to replace stringly typing of tags and properties. Type safety is increased while readability is improved.
2016-06-26Org reader: support figure labelsAlbert Krewinkel1-1/+6
Figure labels given as `#+LABEL: thelabel` are used as the ID of the respective image. This allows e.g. the LaTeX to add proper `\label` markup. This fixes half of #2496 and #2999.
2016-06-21Org reader: remove partial functionsAlbert Krewinkel2-19/+21
Partial functions like `head` lead to avoidable errors and should be avoided. They are replaced with total functions. This fixes #2991.
2016-06-13Org reader: support arbitrary raw inlinesAlbert Krewinkel1-1/+9
Org mode allows arbitrary raw inlines ("export snippets" in Emacs parlance) to be included as `@@format:raw foreign format text@@`. Support for this features is added to the Org reader.
2016-06-05Org reader: add support for "Berkeley-style" citesAlbert Krewinkel2-7/+127
A specification for an official Org-mode citation syntax was drafted by Richard Lawrence and enhanced with the help of others on the orgmode mailing list. Basic support for this citation style is added to the reader. This closes #1978.
2016-06-05Org reader: add semicolon to list of special charsAlbert Krewinkel1-1/+1
Semicolons are used as special characters in citations syntax. This ensures the correct parsing of Pandoc-style citations: [prefix; @key; suffix] Previously, parsing would have failed unless there was a space or other special character as the last <prefix> character.
2016-06-03Org reader: support special strings export optionAlbert Krewinkel4-12/+36
Parsing of special strings (like '...' as ellipsis or '--' as en dash) can be toggled using the `-` option.
2016-06-03Org reader: support emphasized text export optionAlbert Krewinkel3-15/+28
Parsing of emphasized text can be toggled using the `*` option. This influences parsing of text marked as emphasized, strong, strikeout, and underline. Parsing of inline math, code, and verbatim text is not affected by this option.
2016-06-03Org reader: support smart quotes export optionAlbert Krewinkel3-10/+25
Reading of smart quotes can be toggled using the `'` option.
2016-06-02Org reader: drop unused field from parser stateAlbert Krewinkel2-18/+8
The `OrgParserState` contained both an `orgStateMeta` and `orgStateMeta'` field, the former for plain meta information and the latter for F-monad wrapped meta info. The plain meta info is only used to make `OrgParserState` an instance of the `HasMeta` class, which in turn is never used in the reader. The (F Meta) version is hence renamed to the "un-primed" version while the other one is dropped.
2016-06-02Org reader: undo code duplicationAlbert Krewinkel3-55/+83
Some code was duplicated (copy-pasted) or placed in an inappropriate module during the modularization refactoring. Those functions are moved into a `Shared` module, as was originally intended but forgotten. Better documentation of the respective functions is a positive side-effect.
2016-05-31Merge pull request #2950 from tarleb/org-ref-supportJohn MacFarlane2-7/+71
Org reader: support org-ref style citations
2016-05-29Org reader: support new syntax for export blocksAlbert Krewinkel1-0/+9
Org-mode version 9 usees a new syntax for export blocks. Instead of `#+BEGIN_<FORMAT>`, where `<FORMAT>` is the format of the block's content, the new format uses `#+BEGIN_export <FORMAT>` instead. Both types are supported.
2016-05-29Org reader: refactor BEGIN…END block parsingAlbert Krewinkel1-111/+131
- Reorder functions, grouping related functions together. - Demote simple functions to local functions if they are used just once. - Rename and document functions to increase code readability. - Fix handling of whitespace in blocks, allowing content to be indented less then the block header.
2016-05-29Org reader: rename `parseInlines` to `inlines`Albert Krewinkel2-10/+11
Having a function starting with `parse` in a parsing library is overly redundant. Let's use a nicer, shorter name more in line with the rest of the library.
2016-05-27Org reader: support org-ref style citationsAlbert Krewinkel2-7/+71
The *org-ref* package is an org-mode extension commonly used to manage citations in org documents. Basic support for the `cite:citeKey` and `[[cite:citeKey][prefix text::suffix text]]` syntax is added.
2016-05-25Org reader: extract blocks parser to moduleAlbert Krewinkel1-0/+891
Block parsing code is moved to a separate module. This is part of the Org-mode reader cleanup effort.
2016-05-25Org reader: extract inline parser to moduleAlbert Krewinkel3-0/+846
Inline parsing code is moved to a separate module. Parsers for block starts are extracted as well, as those are used in the `endline` parser. This is part of the Org-mode reader cleanup effort.
2016-05-25Org reader: extract parsing function to moduleAlbert Krewinkel2-2/+187
The Org-mode reader uses many functions defined in the `Text.Pandoc.Parsing` utility module. Some of the functions are overwritten with versions adapted to Org-mode idiosyncrasies. These special functions, as well as the normal Pandoc versions, are combined in a single module to increase the ease of use. This leads to decoupling of Org-mode and Pandoc and hence to slightly cleaner code. The downside is code-bloat due to repeated import/export statements.
2016-05-23Org reader: respect drawer export settingAlbert Krewinkel1-1/+14
The `d` export option can be used to control which drawers are exported and which are discarded. Basic support for this option is added here.
2016-05-19Org reader: refactor block attribute handlingAlbert Krewinkel1-4/+0
A parser state attribute was used to keep track of block attributes defined in meta-lines. Global state is undesirable, so block attributes are no longer saved as part of the parser state. Old functions and the respective part of the parser state are removed.
2016-05-11Org reader: add support for sub/superscript export optionsAlbert Krewinkel1-0/+32
Org-mode allows to specify export settings via `#+OPTIONS` lines. Disabling simple sub- and superscripts is one of these export options, this options is now supported.
2016-05-11Org reader: move parser state into separate moduleAlbert Krewinkel1-0/+175
The org reader code has become large and confusing. Extracting smaller parts into submodules should help to clean things up.
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