tree-sitter-org
Unstable: This build will change.
Org grammar for tree-sitter. It is not meant to implement emacs' orgmode parser, but to implement a grammar that can usefully parse org files to be used in neovim and any library that uses tree-sitter parsers.
Overview
This section is meant to be a quick reference, not a thorough description.
Refer to the tests in corpus
for examples.
- Top level node:
(document)
- Document contains:
(directive)* (body)? (section)*
- Section contains:
(headline) (plan)? (property_drawer)? (body)?
- headline contains: (stars, title, tag?+)
- body contains:
(element)+
- element contains:
(directive)* choose(paragraph, drawer, comment, footnote def, list, block, dynamic block, table)
- paragraph contains: (textelement)+
- text element: choose(unmarked text, markup text, timestamps, footnotes, links, latex fragments)
Like in many regex systems, */+
is read as "0/1 or more", and ?
is 0 or 1.
Example
#+TITLE: Example
Some *marked up* words
* TODO Title
<2020-06-07 Sun>
- list a
- [ ] list a
- [ ] list b
- [ ] list b
- list a
** Subsection :tag:
Text
Parses as:
(document [0, 0] - [16, 0]
(directive [0, 0] - [1, 0]
name: (name [0, 2] - [0, 7])
value: (value [0, 9] - [0, 16]))
(body [2, 0] - [3, 0]
(paragraph [2, 0] - [3, 0]
(markup [2, 5] - [2, 16])))
(section [4, 0] - [16, 0]
(headline [4, 0] - [4, 12]
(stars [4, 0] - [4, 1])
(item [4, 2] - [4, 12]))
(plan [5, 0] - [6, 0]
(timestamp [5, 0] - [5, 16]
(date [5, 1] - [5, 15])))
(body [7, 0] - [11, 10]
(list [7, 0] - [11, 10]
(listitem [7, 3] - [7, 10])
(listitem [8, 3] - [10, 16]
(list [9, 0] - [10, 16]
(listitem [9, 5] - [9, 16])
(listitem [10, 5] - [10, 16])))
(listitem [11, 3] - [11, 10])))
(section [13, 0] - [16, 0]
(headline [13, 0] - [13, 19]
(stars [13, 0] - [13, 2])
(item [13, 3] - [13, 13])
tags: (tag [13, 15] - [13, 18]))
(body [15, 0] - [16, 0]
(paragraph [15, 0] - [16, 0])))))
Install
To compile the parser library for use in neovim & others:
gcc -o org.so -I./src src/parser.c src/scanner.cc -shared -Os -lstdc++
cp org.so NEOVIMDIR/parser/
For neovim, using nvim-treesitter/nvim-treesitter
:
Add to your init.lua (or otherwise source):
local parser_config = require "nvim-treesitter.parsers".get_parser_configs()
parser_config.org = {
install_info = {
url = '<PREFIX>/tree-sitter-org',
files = {'src/parser.c', 'src/scanner.cc'},
},
filetype = 'org',
}
To build the parser using npm and run tests:
- Install node.js as described in the tree-sitter documentation
- Clone this repository:
git clone https://github.com/milisims/tree-sitter-org
andcd
into it - Install tree-sitter using npm:
npm install
- Run tests:
./node_modules/.bin/tree-sitter generate && ./node_modules/.bin/tree-sitter test