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Add youtube_embed markdown.

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voussoir 2021-06-13 23:23:43 -07:00
parent eabe0fa5ad
commit 69115df3f6
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1 changed files with 11 additions and 0 deletions
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voussoir.net/writing/vmarkdown.py
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@ -130,6 +130,7 @@ class VoussoirInlineGrammar(mistune.InlineGrammar):
footnote_text = re.compile(r'\[footnote_text\]') footnote_text = re.compile(r'\[footnote_text\]')
subreddit = re.compile(r'\/r\/[A-Za-z0-9_]+') subreddit = re.compile(r'\/r\/[A-Za-z0-9_]+')
redditor = re.compile(r'\/u\/[A-Za-z0-9_]+') redditor = re.compile(r'\/u\/[A-Za-z0-9_]+')
youtube_embed = re.compile(r'\[youtube:([A-Za-z0-9_\-]{11})\]')
dash_spacer = re.compile(r'^\s*-$', re.MULTILINE) dash_spacer = re.compile(r'^\s*-$', re.MULTILINE)
# This `text` override is based on this article: # This `text` override is based on this article:
# https://ana-balica.github.io/2015/12/21/mistune-custom-lexers-we-are-going-deeper/ # https://ana-balica.github.io/2015/12/21/mistune-custom-lexers-we-are-going-deeper/
@ -156,6 +157,7 @@ class VoussoirInline(mistune.InlineLexer):
default_rules.insert(0, 'subreddit') default_rules.insert(0, 'subreddit')
default_rules.insert(0, 'redditor') default_rules.insert(0, 'redditor')
default_rules.insert(0, 'dash_spacer') default_rules.insert(0, 'dash_spacer')
default_rules.insert(0, 'youtube_embed')
def __init__(self, renderer, **kwargs): def __init__(self, renderer, **kwargs):
rules = VoussoirInlineGrammar() rules = VoussoirInlineGrammar()
@ -208,6 +210,15 @@ class VoussoirInline(mistune.InlineLexer):
def output_dash_spacer(self, m): def output_dash_spacer(self, m):
return '' return ''
def output_youtube_embed(self, m):
video_id = m.group(1)
return f'''
<center>
<iframe width="711" height="400" frameborder="0" allow="encrypted-media"
allowfullscreen src="https://www.youtube.com/embed/{video_id}"></iframe>
</center>
'''
class VoussoirBlockGrammar(mistune.BlockGrammar): class VoussoirBlockGrammar(mistune.BlockGrammar):
# The single hyphen is used to create a split between elements that # The single hyphen is used to create a split between elements that
# would normally merge together, such as block quotes. # would normally merge together, such as block quotes.