The fastest markdown parser in pure Python, inspired by marked.
- Pure Python. Tested in Python 2.6+, Python 3.3+ and PyPy.
- Very Fast. It is the fastest in all pure Python markdown parsers.
- More Features. Table, footnotes, autolink, fenced code etc.
View the benchmark results.
Installing mistune with pip:
$ pip install mistuneIf pip is not available, try easy_install:
$ easy_install mistuneMistune can be faster, if you compile with cython:
$ pip install cython mistuneA simple API that render a markdown formatted text:
import mistune
mistune.markdown('I am using **markdown**')
# output: <p>I am using <strong>markdown</strong></p>Mistune has all features by default. You don't have to configure anything.
Like misaka/sundown, you can influence the rendering by custom renderers. All you need to do is subclassing a Renderer class.
Here is an example of code highlighting:
import mistune
from pygments import highlight
from pygments.lexers import get_lexer_by_name
from pygments.formatters import HtmlFormatter
class MyRenderer(mistune.Renderer):
def block_code(self, code, lang):
if not lang:
return '\n<pre><code>%s</code></pre>\n' % \
mistune.escape(code)
lexer = get_lexer_by_name(lang, stripall=True)
formatter = HtmlFormatter()
return highlight(code, lexer, formatter)
renderer = MyRenderer()
md = mistune.Markdown(renderer=renderer)
print(md.render('Some Markdown text.'))Here is a list of block level renderer API:
block_code(code, language=None)
block_quote(text)
block_html(html)
header(text, level, raw=None)
hrule()
list(body, ordered=True)
list_item(text)
paragraph(text)
table(header, body)
table_row(content)
table_cell(content, **flags)The flags tells you whether it is header with flags['header']. And it also tells you the align with flags['align'].
Here is a list of span level renderer API:
autolink(link, is_email=False)
codespan(text)
double_emphasis(text)
emphasis(text)
image(src, title, alt_text)
linebreak()
newline()
link(link, title, content)
tag(html)
strikethrough(text)
text(text)Here is a list of all options that will affect the rendering results:
mistune.markdown(text, escape=True)
md = mistune.Markdown(escape=True)
md.render(text)- escape: if set to True, all raw html tags will be escaped.
- hard_wrap: if set to True, it will has GFM line breaks feature.
- use_xhtml: if set to True, all tags will be in xhtml, for example:
<hr />. - parse_html: parse text in block level html.
Sometimes you want to add your own rules to Markdown, such as GitHub Wiki links. You can't archive this goal with renderers. You will need to deal with the lexers, it would be a little difficult for the first time.
We will take an example for GitHub Wiki links: [[Page 2|Page 2]]. It is an inline grammar, which requires custom InlineGrammar and InlineLexer:
import copy
from mistune import Renderer, InlineGrammar, InlineLexer
class MyRenderer(Renderer):
def wiki_link(self, alt, link):
return '<a href="%s">%s</a>' % (link, alt)
class MyInlineGrammar(InlineGrammar):
# it would take a while for creating the right regex
wiki_link = re.compile(
r'\[\[' # [[
r'([\s\S]+?\|[\s\S]+?)' # Page 2|Page 2
r'\]\](?!\])' # ]]
)
class MyInlineLexer(InlineLexer):
default_rules = copy.copy(InlineLexer.default_rules)
# Add wiki_link parser to default rules
# you can insert it any place you like
default_rules.insert(3, 'wiki_link')
def __init__(self, renderer, rules=None, **kwargs):
if rules is None:
# use the inline grammar
rules = MyInlineGrammar()
super(MyInlineLexer, self).__init__(renderer, rules, **kwargs)
def output_wiki_link(self, m):
text = m.group(1)
alt, link = text.split('|')
# you can create an custom render
# you can also return the html if you like
return self.renderer.wiki_link(alt, link)You should pass the inline lexer to Markdown parser:
renderer = MyRenderer()
inline = MyInlineLexer(renderer)
markdown = Markdown(renderer, inline=inline)
markdown('[[Link Text|Wiki Link]]')It is the same with block level lexer. It would take a while to understand the whole mechanism. But you won't do the trick a lot.
Mistune itself doesn't accept any extension. It will always be a simple one file script.
If you want to add features, you can head over to mistune-contrib.
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