blob: c7b50a25fdb84cf023cdb5f75de73e4875c9e9e8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
{-# LANGUAGE OverloadedStrings #-}
{- |
Module : Text.Pandoc.Lua
Copyright : Copyright © 2017-2021 Albert Krewinkel
License : GNU GPL, version 2 or above
Maintainer : Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
Stability : alpha
Pandoc's Lua globals.
-}
module Text.Pandoc.Lua.Global
( Global (..)
, setGlobals
) where
import HsLua as Lua
import HsLua.Module.Version (pushVersion)
import Paths_pandoc (version)
import Text.Pandoc.Class.CommonState (CommonState)
import Text.Pandoc.Definition (Pandoc (Pandoc), pandocTypesVersion)
import Text.Pandoc.Error (PandocError)
import Text.Pandoc.Lua.Marshal.CommonState (pushCommonState)
import Text.Pandoc.Lua.Marshal.ReaderOptions (pushReaderOptionsReadonly)
import Text.Pandoc.Lua.Orphans ()
import Text.Pandoc.Options (ReaderOptions)
import qualified Data.Text as Text
-- | Permissible global Lua variables.
data Global =
FORMAT Text.Text
| PANDOC_API_VERSION
| PANDOC_DOCUMENT Pandoc
| PANDOC_READER_OPTIONS ReaderOptions
| PANDOC_SCRIPT_FILE FilePath
| PANDOC_STATE CommonState
| PANDOC_VERSION
-- Cannot derive instance of Data because of CommonState
-- | Set all given globals.
setGlobals :: [Global] -> LuaE PandocError ()
setGlobals = mapM_ setGlobal
setGlobal :: Global -> LuaE PandocError ()
setGlobal global = case global of
-- This could be simplified if Global was an instance of Data.
FORMAT format -> do
Lua.push format
Lua.setglobal "FORMAT"
PANDOC_API_VERSION -> do
pushVersion pandocTypesVersion
Lua.setglobal "PANDOC_API_VERSION"
PANDOC_DOCUMENT doc -> do
pushUD typePandocLazy doc
Lua.setglobal "PANDOC_DOCUMENT"
PANDOC_READER_OPTIONS ropts -> do
pushReaderOptionsReadonly ropts
Lua.setglobal "PANDOC_READER_OPTIONS"
PANDOC_SCRIPT_FILE filePath -> do
Lua.push filePath
Lua.setglobal "PANDOC_SCRIPT_FILE"
PANDOC_STATE commonState -> do
pushCommonState commonState
Lua.setglobal "PANDOC_STATE"
PANDOC_VERSION -> do
pushVersion version
Lua.setglobal "PANDOC_VERSION"
-- | Readonly and lazy pandoc objects.
typePandocLazy :: LuaError e => DocumentedType e Pandoc
typePandocLazy = deftype "Pandoc (lazy)" []
[ readonly "meta" "document metadata" (push, \(Pandoc meta _) -> meta)
, readonly "blocks" "content blocks" (push, \(Pandoc _ blocks) -> blocks)
]
|
