Change Log

4.0.0 - 2024-08-10

This primarily drops support for Python 3.9, adds support for Python 3.13, and updates the parser to comply with Commonmark 0.31.2 and Markdown-It v14.1.0.

⬆️ Drop support for Python 3.9 in #360
⬆️ Comply with Commonmark 0.31.2 in #362
👌 Improve performance of "text" inline rule in #347
👌 Use str.removesuffix in #348
👌 limit the number of autocompleted cells in a table in #364
👌 fix quadratic complexity in reference parser in #367
🐛 Fix emphasis inside raw links bugs in #320

Full Changelog: https://github.com/executablebooks/markdown-it-py/compare/v3.0.0...v4.0.0

3.0.0 - 2023-06-03

⚠️ This release contains some minor breaking changes in the internal API and improvements to the parsing strictness.

Full Changelog: https://github.com/executablebooks/markdown-it-py/compare/v2.2.0...v3.0.0

⬆️ UPGRADE: Drop support for Python 3.7

Also add testing for Python 3.11

⬆️ UPGRADE: Update from upstream markdown-it `12.2.0` to `13.0.0`

A key change is the addition of a new Token type, text_special, which is used to represent HTML entities and backslash escaped characters. This ensures that (core) typographic transformation rules are not incorrectly applied to these texts. The final core rule is now the new text_join rule, which joins adjacent text/text_special tokens, and so no text_special tokens should be present in the final token stream. Any custom typographic rules should be inserted before text_join.

A new linkify rule has also been added to the inline chain, which will linkify full URLs (e.g. https://example.com), and fixes collision of emphasis and linkifier (so http://example.org/foo._bar_-_baz is now a single link, not emphasized). Emails and fuzzy links are not affected by this.

♻️ Refactor backslash escape logic, add text_special #276
♻️ Parse entities to text_special token #280
♻️ Refactor: Add linkifier rule to inline chain for full links #279
‼️ Remove (p) => § replacement in typographer #281
‼️ Remove unused silent arg in ParserBlock.tokenize #284
🐛 FIX: numeric character reference passing #272
🐛 Fix: tab preventing paragraph continuation in lists #274
👌 Improve nested emphasis parsing #273
👌 fix possible ReDOS in newline rule #275
👌 Improve performance of skipSpaces/skipChars #271
👌 Show text of text_special in tree.pretty #282

♻️ REFACTOR: Replace most character code use with strings

The use of StateBase.srcCharCode is deprecated (with backward-compatibility), and all core uses are replaced by StateBase.src.

Conversion of source string characters to an integer representing the Unicode character is prevalent in the upstream JavaScript implementation, to improve performance. However, it is unnecessary in Python and leads to harder to read code and performance deprecations (during the conversion in the StateBase initialisation).

See #270, thanks to @hukkinj1.

♻️ Centralise indented code block tests

For CommonMark, the presence of indented code blocks prevent any other block element from having an indent of greater than 4 spaces. Certain Markdown flavors and derivatives, such as mdx and djot, disable these code blocks though, since it is more common to use code fences and/or arbitrary indenting is desirable. Previously, disabling code blocks did not remove the indent limitation, since most block elements had the 3 space limitation hard-coded. This change centralised the logic of applying this limitation (in StateBlock.is_code_block), and only applies it when indented code blocks are enabled.

This allows for e.g.

<div>
  <div>

    I can indent as much as I want here.

  <div>
<div>

See #260

🔧 Maintenance changes

Strict type annotation checking has been applied to the whole code base, ruff is now used for linting, and fuzzing tests have been added to the CI, to integrate with Google OSS-Fuzz testing, thanks to @DavidKorczynski.

🔧 MAINTAIN: Make type checking strict #
🔧 Add typing of rule functions #283
🔧 Move linting from flake8 to ruff #268
🧪 CI: Add fuzzing workflow for PRs #262
🔧 Add tox env for fuzz testcase run #263
🧪 Add OSS-Fuzz set up by @DavidKorczynski in #255
🧪 Fix fuzzing test failures #254

2.2.0 - 2023-02-22

What's Changed

⬆️ UPGRADE: Allow linkify-it-py v2 by @hukkin in #218
🐛 FIX: CVE-2023-26303 by @chrisjsewell in #246
🐛 FIX: CLI crash on non-utf8 character by @chrisjsewell in #247
📚 DOCS: Update the example by @redstoneleo in #229
📚 DOCS: Add section about markdown renderer by @holamgadol in #227
🔧 Create SECURITY.md by @chrisjsewell in #248
🔧 MAINTAIN: Update mypy's additional dependencies by @hukkin in #217
Fix typo by @jwilk in #230
🔧 Bump GH actions by @chrisjsewell in #244
🔧 Update benchmark pkg versions by @chrisjsewell in #245

New Contributors

Thanks to 🎉

@jwilk made their first contribution in #230
@holamgadol made their first contribution in #227
@redstoneleo made their first contribution in #229

Full Changelog: https://github.com/executablebooks/markdown-it-py/compare/v2.1.0...v2.2.0

2.1.0 - 2022-04-15

This release is primarily to replace the attrs package dependency, with the built-in Python dataclasses package.

This should not be a breaking change, for most use cases.

⬆️ UPGRADE: Drop support for EOL Python 3.6 (#194)
♻️ REFACTOR: Move Rule/Delimiter classes from attrs to dataclass (#211)
♻️ REFACTOR: Move Token class from attrs to dataclass (#211)
‼️ Remove deprecated NestedTokens and nest_tokens
✨ NEW: Save ordered list numbering (#192)
🐛 FIX: Combination of blockquotes, list and newlines causes IndexError (#207)

2.0.1 - 2022-24-01

🐛 FIX: Crash when file ends with empty blockquote line.
✨ NEW: Add inline_definitions option. This option allows for definition token to be inserted into the token stream, at the point where the definition is located in the source text. It is useful for cases where one wishes to capture a "loseless" syntax tree of the parsed Markdown (in conjunction with the store_labels option).

2.0.0 - 2021-12-03

⬆️ Update: Sync with markdown-it v12.1.0 and CommonMark v0.30
♻️ REFACTOR: Port mdurl and punycode for URL normalisation (thanks to @hukkin!). This port fixes the outstanding CommonMark compliance tests.
♻️ REFACTOR: Remove AttrDict. This is no longer used is core or mdit-py-plugins, instead standard dictionaries are used.
👌 IMPROVE: Use __all__ to signal re-exports

1.1.0 - 2021-05-08

⬆️ UPGRADE: attrs -> v21 (#165)

This release has no breaking changes (see: https://github.com/python-attrs/attrs/blob/main/CHANGELOG.rst)

1.0.0 - 2021-05-02

Full commit log

The first stable release of markdown-it-py 🎉

See the changes in the beta releases below, thanks to all the contributors in the last year!

1.0.0b3 - 2021-05-01

👌 IMPROVE: Add RendererProtocol type, for typing renderers (thanks to @hukkinj1)
🔧 MAINTAIN: None is no longer allowed as a valid src input for StateBase subclasses

1.0.0b2 - 2021-04-25

‼️ BREAKING: Move mdit-py-plugins out of the core install requirements and into a plugins extra.

Synchronised code with the upstream Markdown-It v12.0.6:

🐛 FIX: Raise HTML blocks priority to resolve conflict with headings
🐛 FIX: Newline not rendered in image alt attribute

1.0.0b1 - 2021-03-31

Full commit log

This is the first beta release of the stable v1.x series.

There are four notable (and breaking) changes:

The code has been synchronised with the upstream Markdown-It v12.0.4. In particular, this update alters the parsing of tables to be consistent with the GFM specification: https://github.github.com/gfm/#tables-extension- A number of parsing performance and validation improvements are also included.
Token.attrs are now stored as dictionaries, rather than a list of lists. This is a departure from upstream Markdown-It, allowed by Pythons guarantee of ordered dictionaries (see #142), and is the more natural representation. Note attrGet, attrSet, attrPush and attrJoin methods remain identical to those upstream, and Token.as_dict(as_upstream=True) will convert the token back to a directly comparable dict.
The use of AttrDict has been replaced: For env any Python mutable mapping is now allowed, and so attribute access to keys is not (differing from the Javascript dictionary). For MarkdownIt.options it is now set as an OptionsDict, which is a dictionary sub-class, with attribute access only for core MarkdownIt configuration keys.
Introduction of the SyntaxTreeNode. This is a more comprehensive replacement for nest_tokens and NestedTokens (which are now deprecated). It allows for the Token stream to be converted to/from a nested tree structure, with opening/closing tokens collapsed into a single SyntaxTreeNode and the intermediate tokens set as children. See Creating a syntax tree documentation for details.

Additional Fixes 🐛

Fix exception due to empty lines after blockquote+footnote
Fix linkify link nesting levels
Fix the use of Ruler.at for plugins
Avoid fenced token mutations during rendering
Fix CLI version info and correct return of exit codes

0.6.2 - 2021-02-07

This release brings Markdown-It-Py inline with Markdown-It v11.0.1 (2020-09-14), applying two fixes:

Fix blockquote lazy newlines, [#696].
Fix missed mappings for table rows, [#705].

Thanks to @hukkinj1!

0.6.1 - 2021-01-01

This release provides some improvements to the code base:

🐛 FIX: Do not resolve backslash escapes inside auto-links
🐛 FIX: Add content to image tokens
👌 IMPROVE: Add more type annotations, thanks to @hukkinj1

0.6.0 - 2020-12-15

🗑 DEPRECATE: Move plugins to mdit_py_plugins

Plugins (in markdown_it.extensions) have now been moved to executablebooks/mdit-py-plugins. This will allow for their maintenance to occur on a different cycle to the core code, facilitating the release of a v1.0.0 for this package

🔧 MAINTAIN: Add mypy type-checking, thanks to @hukkinj1.

0.5.8 - 2020-12-13

✨ NEW: Add linkify, thanks to @tsutsu3.

This extension uses linkify-it-py to identify URL links within text:

github.com -> <a href="http://github.com">github.com</a>

Important: To use this extension you must install linkify-it-py; pip install markdown-it-py[linkify]

It can then be activated by:

from markdown_it import MarkdownIt
md = MarkdownIt().enable("linkify")
md.options["linkify"] = True

0.5.7 - 2020-12-13

✨ NEW: Add smartquotes, thanks to @tsutsu3.

This extension will convert basic quote marks to their opening and closing variants:

'single quotes' -> ‘single quotes’
"double quotes" -> “double quotes”

It can be activated by:

from markdown_it import MarkdownIt
md = MarkdownIt().enable("smartquotes")
md.options["typographer"] = True

✨ NEW: Add markdown-it-task-lists plugin, thanks to @wna-se.

This is a port of the JS markdown-it-task-lists, for building task/todo lists out of markdown lists with items starting with [ ] or [x]. For example:

- [ ] An item that needs doing
- [x] An item that is complete

This plugin can be activated by:

from markdown_it import MarkdownIt
from markdown_it.extensions.tasklists import tasklists_plugin
md = MarkdownIt().use(tasklists_plugin)

🐛 Various bug fixes, thanks to @hukkinj1:

Do not copy empty env arg in MarkdownIt.render
_Entities.__contains__ fix return data
Parsing of unicode ordinals
Handling of final character in skipSpacesBack and skipCharsBack methods
Avoid exception when document ends in heading/blockquote marker

🧪 TESTS: Add CI for Python 3.9 and PyPy3

0.5.6 - 2020-10-21

✨ NEW: Add simple typographic replacements, thanks to @tsutsu3: This allows you to add the typographer option to the parser, to replace particular text constructs:
- (c), (C) → ©
- (tm), (TM) → ™
- (r), (R) → ®
- (p), (P) → §
- +- → ±
- ... → …
- ?.... → ?..
- !.... → !..
- ???????? → ???
- !!!!! → !!!
- ,,, → ,
- -- → &ndash
- --- → &mdash
```
md = MarkdownIt().enable("replacements")
md.options["typographer"] = True
```
📚 DOCS: Improve documentation for CLI, thanks to @westurner
👌 IMPROVE: Use re.sub() instead of re.subn()[0], thanks to @hukkinj1
🐛 FIX: An exception raised by having multiple blank lines at the end of some files

0.5.5 - 2020-09-27

👌 IMPROVE: Add store_labels option.

This allows for storage of original reference label in link/image token's metadata, which can be useful for renderers.

0.5.4 - 2020-09-08

✨ NEW: Add anchors_plugin for headers, which can produce:

<h1 id="title-string">Title String <a class="header-anchor" href="#title-string">¶</a></h1>

0.5.3 - 2020-09-04

🐛 Fixed an undefined variable in the reference block.

0.5.2 - 2020-08-22

🐛 Fixed an IndexError in container_plugin, when there is no newline on the closing tag line.

0.5.1 - 2020-08-21

⬆️ UPGRADE: attrs -> v20

This is not breaking, since it only deprecates Python 3.4 (see CHANGELOG.rst)

0.5.0 - 2020-08-18

Added ✨

deflist and dollarmath plugins (see plugins list).

Improved 👌

Added benchmarking tests and CI (see https://executablebooks.github.io/markdown-it-py/dev/bench/)
Improved performance of computing ordinals (=> 10-15% parsing speed increase). Thanks to @sildar!

Fixed 🐛

Stopped empty lines at the end of the document, after certain list blocks, raising an exception (#36).
Allow myst-role to accept names containing digits (0-9).

0.4.9 - 2020-08-11

Added ✨

containers plugin (see plugins list)

Documented 📚

Plugins and improved contributing section

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Change Log

4.0.0 - 2024-08-10

3.0.0 - 2023-06-03

⬆️ UPGRADE: Drop support for Python 3.7

⬆️ UPGRADE: Update from upstream markdown-it 12.2.0 to 13.0.0

♻️ REFACTOR: Replace most character code use with strings

♻️ Centralise indented code block tests

🔧 Maintenance changes

2.2.0 - 2023-02-22

What's Changed

New Contributors

2.1.0 - 2022-04-15

2.0.1 - 2022-24-01

2.0.0 - 2021-12-03

1.1.0 - 2021-05-08

1.0.0 - 2021-05-02

1.0.0b3 - 2021-05-01

1.0.0b2 - 2021-04-25

1.0.0b1 - 2021-03-31

Additional Fixes 🐛

0.6.2 - 2021-02-07

0.6.1 - 2021-01-01

0.6.0 - 2020-12-15

0.5.8 - 2020-12-13

0.5.7 - 2020-12-13

0.5.6 - 2020-10-21

0.5.5 - 2020-09-27

0.5.4 - 2020-09-08

0.5.3 - 2020-09-04

0.5.2 - 2020-08-22

0.5.1 - 2020-08-21

0.5.0 - 2020-08-18

Added ✨

Improved 👌

Fixed 🐛

0.4.9 - 2020-08-11

Added ✨

Documented 📚

⬆️ UPGRADE: Update from upstream markdown-it `12.2.0` to `13.0.0`