By calling str on all stash elements we ensure they don't raise an error. Worse case, soemthing like `<Element 'div' at 0x000001B2DAE94900>` gets inserted into the output. However, with the override in the md_in_html extension, we actually serialize and reinsert the original HTML. Worse case, an HTML block which should be parsed as Markdown gets skipped by the extension (`<div markdown="block"></div>` gets inserting into the output). The tricky part is testing as there should be no known cases where this ever occurs. Therefore, we forefully pass an etree Element directly to the method in the test. That said, as #1040 is unresolved at this point, I have tested locally with a real existing case and it works well. Related to #1040.
The HTML parser has been completely replaced. The new HTML parser is built on Python's html.parser.HTMLParser, which alleviates various bugs and simplifies maintenance of the code. The md_in_html extension has been rebuilt on the new HTML Parser, which drastically simplifies it. Note that raw HTML elements with a markdown attribute defined are now converted to ElementTree Elements and are rendered by the serializer. Various bugs have been fixed. Link reference parsing, abbreviation reference parsing and footnote reference parsing has all been moved from preprocessors to blockprocessors, which allows them to be nested within other block level elements. Specifically, this change was necessary to maintain the current behavior in the rebuilt md_in_html extension. A few random edge-case bugs (see the included tests) were resolved in the process. Closes #595, closes #780, closes #830 and closes #1012.
Not sure how tests didn't get run on this, but it was completely breaking all tests. This reverts the change.
`util` already provides the regex we need for all placeholders, and we're doing extra work parsing for the explicit union of all of them. In documents with ~30000 placeholders, I get a ~5x speedup with this change.
* Python syntax upgraded using `pyupgrade --py3-plus` * Travis no longer uses `sudo`. See https://blog.travis-ci.com/2018-11-19-required-linux-infrastructure-migration See #760 for Python Version Support Timeline and related dicussion.
Recursively run substitution to handle overlapping matches. Fixes #458.
Allows users and/or extensions to alter the list of block level elements. The old implementation remains with a DeprecationWarning. Fixes #575.
Fixes #435.
Previously, instances of the Markdown class were represented as any one of 'md', 'md_instance', or 'markdown'. This inconsistency made it difficult when developing extensions, or just maintaining the existing code. Now, all instances are consistently represented as 'md'. The old attributes on class instances still exist, but raise a DeprecationWarning when accessed. Also on classes where the instance was optional, the attribute always exists now and is simply None if no instance was provided (previously the attribute wouldn't exist).
All processors and patterns now get "registered" to a Registry. Each item is given a name (string) and a priority. The name is for later reference and the priority can be either an integer or float and is used to sort. Priority is sorted from highest to lowest. A Registry instance is a list-like iterable with the items auto-sorted by priority. If two items have the same priority, then they are listed in the order there were "registered". Registering a new item with the same name as an already registered item replaces the old item with the new item (however, the new item is sorted by its newly assigned priority). To remove an item, "deregister" it by name or index. A backwards compatible shim is included so that existing simple extensions should continue to work. DeprecationWarnings will be raised for any code which calls the old API. Fixes #418.