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2018-11-19Lua filters: test AST object equality via HaskellAlbert Krewinkel1-3/+15
Equality of Lua objects representing pandoc AST elements is tested by unmarshalling the objects and comparing the result in Haskell. A new function `equals` which performs this test has been added to the `pandoc.utils` module. Closes: #5092
2018-11-17Lua Utils module: improve stringifyAlbert Krewinkel1-2/+9
Meta value strings (MetaString) and booleans (MetaBool) are now converted to the literal string and the lowercase boolean name, respectively. Previously, all values of these types were converted to the empty string.
2018-10-28T.P.Lua: expose more useful internals (API change)Albert Krewinkel2-2/+21
Newly exported from Text.Pandoc.Lua: - `runFilterFile` to run a Lua filter from file; - data type `Global` and its constructors; and - `setGlobals` to add globals to a Lua environment. This module also contains `Pushable` and `Peekable` instances required to get pandoc's data types to and from Lua. Low-level Lua operation remain hidden in Text.Pandoc.Lua.
2018-10-28T.P.Lua: rename `runPandocLua` to `runLua` (API change)Albert Krewinkel1-3/+3
2018-10-26Text.Pandoc.Lua: move globals handling to separate moduleAlbert Krewinkel2-21/+126
2018-10-25Lua: allow access to pandoc state (#5015)Albert Krewinkel2-6/+95
* Lua: allow access to pandoc state Lua filters and custom writers now have read-only access to most fields of pandoc's internal state via the global variable `PANDOC_STATE`. * Lua: allow iterating through fields of PANDOC_STATE * Lua filters doc: describe CommonState * Lua filters doc: mention global variable PANDOC_STATE * Lua: add access to logs Log messages can currently only be printed, but not decomposed.
2018-10-15Lua filters: rename ReaderOptions fields, use snake_caseAlbert Krewinkel1-5/+28
Snake case is used in most variable names, using camelCase for these fields was an oversight. A metatable is added to ensure that the old field names remain functional.
2018-10-13Lua filter internals: push Shared.Element as userdataAlbert Krewinkel1-19/+24
Hierarchical Elements were pushed to Lua as plain tables. This is simple, but has the disadvantage that marshaling is eager: all child elements will be marshaled as part of the object. Using a Lua userdata object instead allows lazy access to fields, causing content marshaling just (but also each time) when a field is accessed. Filters which do not traverse the full element contents tree become faster as a result.
2018-10-12Lua filters: push ListAttributes via constructorAlbert Krewinkel2-2/+17
This ensures that ListAttributes, as present in OrderedList elements, have additional accessors (viz. *start*, *style*, and *delimiter*).
2018-10-02T.P.Lua.StackInstances - moved pragmas to top of file.John MacFarlane1-5/+5
2018-10-01Lua filters: report traceback when an error occursAlbert Krewinkel2-7/+40
A proper Lua traceback is added if either loading of a file or execution of a filter function fails. This should be of help to authors of Lua filters who need to debug their code.
2018-10-01Lua Util: add missing docstring to defineHowToAlbert Krewinkel1-1/+1
2018-09-24Use hslua v1.0.0Albert Krewinkel8-233/+175
2018-09-19Lua filter: cleanup filter execution codeAlbert Krewinkel1-51/+73
2018-08-12Lua: cleanup Lua utils, remove unused functions.Albert Krewinkel3-88/+61
2018-07-30Lua Utils module: add function blocks_to_inlines (#4799)Albert Krewinkel1-0/+10
Exposes a function converting which flattenes a list of blocks into a list of inlines. An example use case would be the conversion of Note elements into other inlines.
2018-07-02Spellcheck commentsAlexander Krotov1-1/+1
2018-03-18Use NoImplicitPrelude and explicitly import Prelude.John MacFarlane8-0/+16
This seems to be necessary if we are to use our custom Prelude with ghci. Closes #4464.
2018-03-17hlint fixes.John MacFarlane1-1/+1
2018-02-24Lua: register script name in global variableAlbert Krewinkel1-1/+7
The name of the Lua script which is executed is made available in the global Lua variable `PANDOC_SCRIPT_FILE`, both for Lua filters and custom writers. Closes: #4393
2018-01-23Lua filters: store constructors in registryAlbert Krewinkel3-3/+29
Lua functions used to construct AST element values are stored in the Lua registry for quicker access. Getting a value from the registry is much faster than getting a global value (partly to idiosyncrasies of hslua); this change results in a considerable performance boost.
2018-01-23Lua: move getTag from StackInstances to UtilAlbert Krewinkel2-13/+17
Change: minor
2018-01-19hlint code improvements.John MacFarlane2-2/+0
2018-01-15Renaming: Json -> JSON in modules and functions.John MacFarlane1-5/+5
2018-01-15Merge pull request #4227 from tarleb/lua-run-json-filterJohn MacFarlane2-4/+28
Run JSON filters from Lua filters
2018-01-13Lua modules: add function pandoc.utils.run_json_filterAlbert Krewinkel2-4/+28
Runs a JSON filter on a Pandoc document.
2018-01-12Lua filters: improve error messagesAlbert Krewinkel3-15/+34
Provide more context about the task which caused an error.
2018-01-12Lua filters: make PANDOC_READER_OPTIONS availableAlbert Krewinkel1-2/+48
The options which were used to read the document are made available to Lua filters via the `PANDOC_READER_OPTIONS` global.
2018-01-07Lua: make pandoc-types version available as PANDOC_API_VERSIONAlbert Krewinkel1-0/+3
The current pandoc-types version is made available to Lua programs in the global PANDOC_API_VERSION. It contains the version as a list of numbers.
2018-01-07Lua: make pandoc version available as PANDOC_VERSIONAlbert Krewinkel1-0/+4
The current pandoc version is made available to Lua programs in the global PANDOC_VERSION. It contains the version as a list of numbers.
2018-01-05Update copyright notices to include 2018Albert Krewinkel7-18/+18
2018-01-05data/pandoc.lua: fix attribute names of CitationAlbert Krewinkel1-6/+6
The fields were named like the Haskell fields, not like the documented, shorter version. The names are changed to match the documentation and Citations are given a shared metatable to enable simple extensibility. Fixes: #4222
2018-01-04Use hslua utils where possibleAlbert Krewinkel4-33/+16
Some helper functions and types have been moved to hslua. Change: minor
2018-01-01Lua.Module.Utils: make stringify work on MetaValues.John MacFarlane1-1/+4
I'm sure this was intended in the first place, but currently only Meta is supported.
2017-12-29data/pandoc.lua: drop function pandoc.global_filterAlbert Krewinkel2-2/+1
The function `global_filter` was used internally to get the implicitly defined global filter. It was of little value to end-users, but caused unnecessary code duplication in pandoc. The function has hence been dropped. Internally, the global filter is now received by interpreting the global table as lua filter. This is a Lua API change.
2017-12-23Lua modules: add function pandoc.utils.hierarchicalizeAlbert Krewinkel2-8/+39
Convert list of Pandoc blocks into (hierarchical) list of Elements.
2017-12-23Lua modules: add function pandoc.utils.normalize_dateAlbert Krewinkel2-2/+14
The function parses a date and converts it (if possible) to "YYYY-MM-DD" format.
2017-12-23Lua modules: add function pandoc.utils.to_roman_numeralAlbert Krewinkel1-1/+9
The function allows conversion of numbers below 4000 into roman numerals.
2017-12-22Lua modules: add stringify function to pandoc.utilsAlbert Krewinkel1-6/+35
The new function `pandoc.utils.stringify` converts any AST element to a string with formatting removed.
2017-12-22Lua.Util: avoid altering the stack if peeking failsAlbert Krewinkel1-4/+12
The stack now remains unaltered if `getRawInt` or `getTable` fail. This is important when those functions are used in an operation that is part of an Alternative. Change: minor
2017-12-21Lua modules: added pandoc.utils moduleAlbert Krewinkel3-8/+52
A new module `pandoc.utils` has been created. It holds utility functions like `sha1`, which was moved from the main `pandoc` module.
2017-12-21Lua modules: make a Haskell module for each Lua moduleAlbert Krewinkel3-74/+112
Definitions for the `pandoc.mediabag` modules are moved to a separate Haskell module. Change: minor
2017-12-21Lua modules: move to dedicated submoduleAlbert Krewinkel3-33/+32
The Haskell module defining the Lua `pandoc` module is moved to Text.Pandoc.Lua.Module.Pandoc. Change: minor
2017-12-20Lua modules: turn pipe, read into full Haskell functionsAlbert Krewinkel2-31/+77
The `pipe` and `read` utility functions are converted from hybrid lua/haskell functions into full Haskell functions. This avoids the need for intermediate `_pipe`/`_read` helper functions, which have dropped.
2017-12-18Lua filters: perform minor code clean-upAlbert Krewinkel2-11/+8
Change: minor
2017-12-13Custom writer: use init file to setup Lua interpreterAlbert Krewinkel1-0/+79
The same init file (`data/init`) that is used to setup the Lua interpreter for Lua filters is also used to setup the interpreter of custom writers.lua.
2017-12-10Lua filters: fix package loading for Lua 5.1Albert Krewinkel1-1/+4
The list of package searchers is named `package.loaders` in Lua 5.1 and LuaJIT, and `package.searchers` in Lua 5.2 and later.
2017-12-06Lua filters: use script to initialize the interpreterAlbert Krewinkel1-3/+4
The file `init.lua` is used to initialize the Lua interpreter which is used in Lua filters. This gives users the option to require libraries which they want to use in all of their filters, and to extend default modules.
2017-12-02Lua filters: refactor lua module handlingAlbert Krewinkel3-33/+148
The integration with Lua's package/module system is improved: A pandoc-specific package searcher is prepended to the searchers in `package.searchers`. The modules `pandoc` and `pandoc.mediabag` can now be loaded via `require`.
2017-12-01Lua/StackInstances: push Pandoc and Meta via constructorAlbert Krewinkel1-7/+5
Pandoc and Meta elements are now pushed by calling the respective constructor functions of the pandoc Lua module. This makes serialization consistent with the way blocks and inlines are pushed to lua and allows to use List methods with the `blocks` value.
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