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python-blog/articles/utils.py

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2021-01-03 21:51:46 +01:00
import re
import html2text
import markdown
from django.conf import settings
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from markdown.extensions.codehilite import CodeHiliteExtension
from articles.markdown import LazyLoadingImageExtension
def build_full_absolute_url(request, url):
if request:
return request.build_absolute_uri(url)
else:
return (settings.BLOG["base_url"] + url)[::-1].replace("//", "/", 1)[::-1]
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def format_article_content(content):
md = markdown.Markdown(
extensions=[
"extra",
"admonition",
CodeHiliteExtension(linenums=False, guess_lang=False),
LazyLoadingImageExtension(),
]
)
content = re.sub(r"(\s)#(\w+)", r"\1\#\2", content)
return md.convert(content)
def truncate_words_after_char_count(text, char_count):
total_length = 0
text_result = []
for word in text.split():
if len(word) + 1 + total_length > char_count:
break
text_result.append(word)
total_length += len(word) + 1
return " ".join(text_result) + "..."
def get_html_to_text_converter():
converter = html2text.HTML2Text()
converter.ignore_images = True
converter.ignore_links = True
converter.ignore_tables = True
converter.ignore_emphasis = True
return converter