71 lines
1.6 KiB
Python
71 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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import re
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import socket
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import unicodedata
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from bs4 import BeautifulSoup
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from toot.exceptions import ConsoleError
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def get_text(html):
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"""Converts html to text, strips all tags."""
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text = BeautifulSoup(html, "html.parser").get_text().replace(''', "'")
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return unicodedata.normalize('NFKC', text)
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def parse_html(html):
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"""Attempt to convert html to plain text while keeping line breaks.
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Returns a list of paragraphs, each being a list of lines.
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"""
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paragraphs = re.split("</?p[^>]*>", html)
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# Convert <br>s to line breaks and remove empty paragraphs
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paragraphs = [re.split("<br */?>", p) for p in paragraphs if p]
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# Convert each line in each paragraph to plain text:
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return [[get_text(l) for l in p] for p in paragraphs]
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def format_content(content):
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"""Given a Status contents in HTML, converts it into lines of plain text.
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Returns a generator yielding lines of content.
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"""
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paragraphs = parse_html(content)
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first = True
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for paragraph in paragraphs:
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if not first:
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yield ""
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for line in paragraph:
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yield line
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first = False
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def domain_exists(name):
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try:
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socket.gethostbyname(name)
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return True
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except OSError:
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return False
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def assert_domain_exists(domain):
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if not domain_exists(domain):
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raise ConsoleError("Domain {} not found".format(domain))
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def trunc(text, length):
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"""Trims text to given length, if trimmed appends ellipsis."""
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if len(text) <= length:
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return text
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return text[:length - 1] + '…'
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