markdown-alerts/markdown_alerts.py
2021-03-27 00:00:58 +03:00

79 lines
2.3 KiB
Python

"""Python-Markdown Admonition alternative extension
with a shortened syntax.
"""
__version__ = '0.1'
import re
import xml.etree.ElementTree as etree
from markdown.extensions import Extension
from markdown.blockprocessors import BlockProcessor
# Patterns
alerts = {
'info': r'::: *info',
'note': r'::: *note',
'tip': r'::: *tip',
'success': r'::: *success',
'warning': r'::: *warning',
'danger': r'::: *danger'
}
default_config = {
'info' : ['alert info', 'CSS class for Info block.'],
'note' : ['alert note', 'CSS class for Note block.'],
'tip' : ['alert tip', 'CSS class for Tip block.'],
'success' : ['alert success', 'CSS class for Success block.'],
'warning' : ['alert warning', 'CSS class for Warning block.'],
'danger' : ['alert danger', 'CSS class for Danger block.'],
}
class AlertsBlockProcessor(BlockProcessor):
def __init__(self, parser, alert, alert_css_class):
self.parser = parser
self.tab_length = parser.md.tab_length
self.alert = alert
self.alert_css_class = alert_css_class
def test(self, parent, block):
return re.match(alerts[self.alert], block)
def run(self, parent, blocks):
original_block = blocks[0]
blocks[0] = re.sub(alerts[self.alert], '', blocks[0])
for block_num, block in enumerate(blocks):
if re.search(r' *\n?$', block):
e = etree.SubElement(parent, 'div')
e.set('class', self.alert_css_class)
self.parser.parseBlocks(e, blocks[0:block_num + 1])
for i in range(0, block_num + 1):
blocks.pop(0)
return True
blocks[0] = original_block
return False
class AlertsExtension(Extension):
def __init__(self, **kwargs):
self.config = default_config
super(AlertsExtension, self).__init__(**kwargs)
def extendMarkdown(self, md):
priority = 105
for alert in alerts.keys():
priority += 10
md.parser.blockprocessors.register(
AlertsBlockProcessor(md.parser, alert, self.getConfig(alert)),
alert + '-alert',
priority
)
def makeExtension(**kwargs):
return AlertsExtension(**kwargs)
if __name__ == '__main__':
pass