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path: root/src/Text/Pandoc/Lua.hs
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2017-06-03Improve code style in lua and org modulesAlbert Krewinkel1-9/+9
2017-04-30Lua filter: fall-back to global filters when none is returnedAlbert Krewinkel1-1/+12
The implicitly defined global filter (i.e. all element filtering functions defined in the global lua environment) is used if no filter is returned from a lua script. This allows to just write top-level functions in order to define a lua filter. E.g function Emph(elem) return pandoc.Strong(elem.content) end
2017-04-26Lua filter: allow filtering of meta data onlyAlbert Krewinkel1-1/+13
2017-04-18Lua: drop useless filter function type parameterAlbert Krewinkel1-28/+20
The return-type parameter for lua filter functions is removed. It only complicated the code without introducing any additional type safety.
2017-04-15Lua filter: revert to non-destructuring filtersAlbert Krewinkel1-66/+46
We want to provide an interface familiar to users of other filtering libraries.
2017-04-14Lua filter: allow shorthand functions for math and quotedAlbert Krewinkel1-3/+23
Allow to use functions named `SingleQuoted`, `DoubleQuoted`, `DisplayMath`, and `InlineMath` in filters.
2017-04-14Extract lua helper functions into Lua.Util moduleAlbert Krewinkel1-18/+2
2017-04-14Lua filter: use destructured functions for block filtersAlbert Krewinkel1-17/+23
Filtering functions take element components as arguments instead of the whole block elements. This resembles the way elements are handled in custom writers.
2017-04-14Drop dependency on hslua-aesonAlbert Krewinkel1-18/+15
Pushing values to the lua stack via custom functions is faster and more flexible.
2017-04-13Use lua constructors to push meta valuesAlbert Krewinkel1-2/+2
2017-04-12Lua filter: use destructured functions for inline filtersAlbert Krewinkel1-33/+58
Instead of taking the whole inline element, forcing users to destructure it themselves, the components of the elements are passed to the filtering functions.
2017-04-11Lua filter: use custom StackValue Inline instanceAlbert Krewinkel1-3/+5
Inline elements are no longer pushed and pulled via aeson's Value.
2017-04-04Use lua registry instead of named globalsAlbert Krewinkel1-5/+11
This is slightly cleaner while keeping performance approximately the same.
2017-04-02Lua module: add readers submoduleAlbert Krewinkel1-28/+3
Plain text readers are exposed to lua scripts via the `pandoc.reader` submodule, which is further subdivided by format. Converting e.g. a markdown string into a pandoc document is possible from within lua: doc = pandoc.reader.markdown.read_doc("Hello, World!") A `read_block` convenience function is provided for all formats, although it will still parse the whole string but return only the first block as the result. Custom reader options are not supported yet, default options are used for all parsing operations.
2017-03-20Lua filters (#3514)Albert Krewinkel1-0/+226
* Add `--lua-filter` option. This works like `--filter` but takes pathnames of special lua filters and uses the lua interpreter baked into pandoc, so that no external interpreter is needed. Note that lua filters are all applied after regular filters, regardless of their position on the command line. * Add Text.Pandoc.Lua, exporting `runLuaFilter`. Add `pandoc.lua` to data files. * Add private module Text.Pandoc.Lua.PandocModule to supply the default lua module. * Add Tests.Lua to tests. * Add data/pandoc.lua, the lua module pandoc imports when processing its lua filters. * Document in MANUAL.txt.