markdown-it-py/markdown_it/port.yaml

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- package: markdown-it/markdown-it
version: 12.2.0
commit: 6e2de08a0b03d3d0dcc524b89710ce05f83a0283
date: Aug 2, 2021
notes:
- Rename variables that use python built-in names, e.g.
- `max` -> `maximum`
- `len` -> `length`
- `str` -> `string`
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Convert JS `for` loops to `while` loops
this is generally the main difference between the codes,
because in python you can't do e.g. `for {i=1;i<x;i++} {}`
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`env` is a common Python dictionary, and so does not have attribute access to keys,
as with JavaScript dictionaries.
`options` have attribute access only to core markdownit configuration options
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`Token.attrs` is a dictionary, instead of a list of lists.
Upstream the list format is only used to guarantee order: https://github.com/markdown-it/markdown-it/issues/142,
but in Python 3.7+ order of dictionaries is guaranteed.
One should anyhow use the `attrGet`, `attrSet`, `attrPush` and `attrJoin` methods
to manipulate `Token.attrs`, which have an identical signature to those upstream.
- Use python version of `charCodeAt`
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Reduce use of charCodeAt() by storing char codes in a srcCharCodes attribute for state
objects and sharing those whenever possible
This provides a significant performance boost
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In markdown_it/rules_block/reference.py,
record line range in state.env["references"] and add state.env["duplicate_refs"]
This is to allow renderers to report on issues regarding references
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The `MarkdownIt.__init__` signature is slightly different for updating options,
since you must always specify the config first, e.g.
use `MarkdownIt("commonmark", {"html": False})` instead of `MarkdownIt({"html": False})`
- The default configuration preset for `MarkdownIt` is "commonmark" not "default"
- Allow custom renderer to be passed to `MarkdownIt`
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change render method signatures
`func(tokens, idx, options, env, slf)` to
`func(self, tokens, idx, options, env)`
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Extensions add render methods by format
`MarkdownIt.add_render_rule(name, function, fmt="html")`,
rather than `MarkdownIt.renderer.rules[name] = function`
and renderers should declare a class property `__output__ = "html"`.
This allows for extensibility to more than just HTML renderers
- inline tokens in tables are assigned a map (this is helpful for propagation to children)