mediawiki-parser
This project aims to develop a parser for a subset of mediawiki markdown on the basis of Parsing Expression Grammars. It currently features a generated parser and test generation from a specification document. A simple binary to read from a file and write yaml to stdout is provided.
Disclaimer
The goal of mediawiki-parser is not full compatibility with MediaWiki and all of it's quirks. It is intended to be used if rejecting exotic or malformed input is fine. The markup supported is currently largely oriented towards the need of a specific MediaWiki Project and will likely not change drastically without external contributions.
If you want to parse any MediaWiki with all its weirdness, take a look at Parse Wiki Text instead.
Currently supported MediaWiki:
- Text formatting:
''italic'', '''bold''', <math>\LaTex</math>, <code></code>, ...
- Paragraphs
- Heading hierarchies
- Lists
- Internal references (files)
[[File.ext|option|caption]]
- External references
[https://example.com/ example]
- Tables
- Generic templates
{{name|anon_arg|arg=value}}
- Galleries
- Generic html tags and comments
<thing>content</thing>
Example
Parsing will result in either a syntax tree with position information (mostly omitted here for conciseness):
Input:
this is some ''formatted'' [https://example.com example] text.
Output (as pseudo-YAML):
---
type: document
position: ...
content:
- type: paragraph
position: ...
content:
- type: text
position: ...
text: "this is some "
- type: formatted
position: ...
markup: italic
content:
- type: text
position:
start:
offset: 15
line: 1
col: 16
end:
offset: 24
line: 1
col: 25
text: formatted
- type: text
position: ...
text: " "
- type: externalreference
position: ...
target: "https://example.com"
caption:
- type: text
position: ...
text: example
- type: text
position: ...
text: " text."
Or a syntax error (here is a pretty representation):
ERROR in line 1 at column 57: Could not continue to parse, expected one of: ''', [, <!--, '', [[, EOF, "\n", {{, [ ], opening html tag, <, normal text
1 | this is some ''formatted'' [https://example.com example]] text.
2 |
API
The library provides a straight forward parse()
function:
let input = "Hello World";
let result = parse
.expect
The result is a custom abstract syntax tree (AST). See the documentation for details.