/rstcheck

Checks syntax of reStructuredText and code blocks nested within it

Primary LanguagePythonMIT LicenseMIT

rstcheck

Build status

Checks syntax of reStructuredText and code blocks nested within it.

Contents

Installation

From pip:

$ pip install rstcheck

Supported languages in code blocks

  • Bash
  • Doctest
  • C (C99)
  • C++ (C++11)
  • JSON
  • XML
  • Regular Expressions
  • Python
  • reStructuredText

Examples

With bad Python syntax:

====
Test
====

.. code:: python

    print(
$ rstcheck bad_python.rst
bad_python.rst:7: (ERROR/3) (python) unexpected EOF while parsing

With bad C++ syntax:

====
Test
====

.. code:: cpp

    int main()
    {
        return x;
    }
$ rstcheck bad_cpp.rst
bad_cpp.rst:9: (ERROR/3) (cpp) error: 'x' was not declared in this scope

With bad syntax in the reStructuredText document itself:

====
Test
===
$ rstcheck bad_rst.rst
bad_rst.rst:1: (SEVERE/4) Title overline & underline mismatch.

Options

usage: rstcheck [-h] [--report level] [--ignore-language language]
                [--ignore-directives directives]
                [--ignore-substitutions substitutions] [--ignore-roles roles]
                [--debug] [--version]
                files [files ...]

Checks code blocks in reStructuredText.

positional arguments:
  files                 files to check

optional arguments:
  -h, --help            show this help message and exit
  --report level        report system messages at or higher than level; info,
                        warning, error, severe, none (default: info)
  --ignore-language language, --ignore language
                        comma-separated list of languages to ignore
  --ignore-directives directives
                        comma-separated list of directives to ignore
  --ignore-substitutions substitutions
                        comma-separated list of substitutions to ignore
  --ignore-roles roles  comma-separated list of roles to ignore
  --debug               show helpful for debugging
  --version             show program's version number and exit

Ignore specific languages

You can ignore checking of nested code blocks by language. Either use the command-line option --ignore or put a comment in the document:

.. rstcheck: ignore-language=cpp,python,rst

Configuration

If your project has custom roles and directives, you can specify them in the local configuration of the project. rstcheck looks for a file .rstcheck.cfg in the directory or ancestor directory of the file it is checking.

For example, consider a project with the following directory structure:

docs
├── foo
│   └── bar.rst
├── index.rst
└── .rstcheck.cfg

.rstcheck.cfg contains:

[rstcheck]
ignore_directives=one,two,three
ignore_roles=src,RFC

bar.rst contains:

Bar
===

:src:`hello_world.py`
:RFC:`793`

.. one::

   Hello

rstcheck will make use of the .rstcheck.cfg:

$ rstcheck docs/foo/bar.rst

Sphinx

To enable Sphinx:

$ pip install sphinx

The installed Sphinx version must be at least 1.5.

To check that Sphinx support is enabled:

$ rstcheck -h | grep 'Sphinx is enabled'

Usage in Vim

To check reStructuredText in Vim using Syntastic:

let g:syntastic_rst_checkers = ['rstcheck']

Use as a module

rstcheck.check() yields a series of tuples. The first value of each tuple is the line number (not the line index). The second value is the error message.

>>> import rstcheck
>>> list(rstcheck.check('Example\n==='))
[(2, '(INFO/1) Possible title underline, too short for the title.')]

Note that this does not load any configuration as that would mutate the docutils registries.

History

3.0.1 (2017-03-01)

  • Support UTF-8 byte order marks (BOM). Previously, docutils would interpret the BOM as a visible character, which would lead to false positives about underlines being too short.

3.0 (2016-12-19)

  • Optionally support Sphinx 1.5. Sphinx support will be enabled if Sphinx is installed.

2.0 (2015-07-27)

  • Support loading settings from configuration files.

1.0 (2015-03-14)

  • Add Sphinx support.

0.1 (2013-12-02)

  • Initial version.