reStructuredText linter
Project description
This was created out of frustration with PyPI; it sucks finding out your reST is invalid after uploading it. It is being developed in junction with a Sublime Text linter.
Getting Started
Install the module with: pip install restructuredtext_lint
import restructuredtext_lint
errors = restructuredtext_lint.lint("""
Hello World
=======
""")
# `errors` will be list of system messages
# [<system_message: <paragraph...><literal_block...>>]
errors[0].message # Title underline too short.CLI Utility
For your convenience, we present a CLI utility rst-lint (also available as restructuredtext-lint).
$ rst-lint --help
usage: rst-lint [-h] [--format FORMAT] [--encoding ENCODING] filepath [filepath ...]
Lint reStructuredText files
positional arguments:
filepath File to lint
optional arguments:
-h, --help show this help message and exit
--format FORMAT Format of output (e.g. text, json)
--encoding ENCODING Encoding of the source file (e.g. utf-8)
$ rst-lint README.rst
WARNING README.rst:2 Title underline too short.Documentation
restructuredtext-lint exposes a lint and lint_file function
restructuredtext_lint.lint(content, filepath=None)
Lint reStructuredText and return errors
content String - reStructuredText to be linted
filepath String - Optional path to file, this will be returned as the source
Returns:
- errors List - List of errors
- Each error is a class from docutils with the following attrs
- line Integer|None - Line where the error occurred
On rare occasions, this will be None (e.g. anonymous link mismatch)
source String - filepath provided in parameters
- level Integer - Level of the warning
Levels represent ‘info’: 1, ‘warning’: 2, ‘error’: 3, ‘severe’: 4
- type String - Noun describing the error level
Levels can be ‘INFO’, ‘WARNING’, ‘ERROR’, or ‘SEVERE’
message String - Error message
full_message String - Error message and source lines where the error occurred
It should be noted that level, type, message, and full_message are custom attrs added onto the original system_message
restructuredtext_lint.lint_file(filepath, encoding=None)
Lint a reStructuredText file and return errors
filepath String - Path to file for linting
- encoding String - Encoding to read file in as
When None is provided, it will use OS default as provided by locale.getpreferredencoding
The list of supported encodings can be found at http://docs.python.org/2/library/codecs.html#standard-encodings
Returns: Same structure as restructuredtext_lint.lint
Extension
Under the hood, we leverage docutils for parsing reStructuredText documents. docutils supports adding new directives and roles via register_directive and register_role. Here is an example of adding a directive from sphinx.
https://github.com/sphinx-doc/sphinx/blob/1.3/sphinx/directives/code.py
sphinx.rst
Hello
=====
World
.. highlight:: python
Hello World!sphinx.py
# Load in our dependencies
from docutils.parsers.rst.directives import register_directive
from sphinx.directives.code import Highlight
import restructuredtext_lint
# Load our new directive
register_directive('highlight', Highlight)
# Lint our README
errors = restructuredtext_lint.lint_file('docs/sphinx/README.rst')
print errors[0].message # Error in "highlight" directive: no content permitted.Examples
Here is an example of all invalid properties
rst = """
Some content.
Hello World
=======
Some more content!
"""
errors = restructuredtext_lint.lint(rst, 'myfile.py')
errors[0].line # 5
errors[0].source # myfile.py
errors[0].level # 2
errors[0].type # WARNING
errors[0].message # Title underline too short.
errors[0].full_message # Title underline too short.
#
# Hello World
# =======Contributing
In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Test via nosetests.
Donating
Support this project and others by twolfson via gittip.
Unlicense
As of Nov 22 2013, Todd Wolfson has released this repository and its contents to the public domain.
It has been released under the UNLICENSE.
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