110 lines
3 KiB
Python
110 lines
3 KiB
Python
from html.parser import HTMLParser
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import os
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import re
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import shutil
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import subprocess
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from datetime import datetime, timezone
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HASHTAG_PATTERN = re.compile(r'(?<!\w)(#\w+)\b')
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def parse_datetime(value):
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"""Returns an aware datetime in local timezone"""
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# In Python < 3.7, `%z` does not match `Z` offset
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# https://docs.python.org/3.7/library/datetime.html#strftime-and-strptime-behavior
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if value.endswith("Z"):
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dttm = datetime.strptime(value, "%Y-%m-%dT%H:%M:%S.%fZ").replace(tzinfo=timezone.utc)
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else:
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dttm = datetime.strptime(value, "%Y-%m-%dT%H:%M:%S.%f%z")
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# When running tests return datetime in UTC so that tests don't depend on
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# the local timezone
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if "PYTEST_CURRENT_TEST" in os.environ:
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return dttm.astimezone(timezone.utc)
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return dttm.astimezone()
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def highlight_keys(text, high_attr, low_attr=""):
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"""
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Takes a string and adds high_attr attribute to parts in square brackets,
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and optionally low_attr attribute to parts outside square brackets.
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The result can be rendered using a urwid.Text widget.
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For example:
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>>> highlight_keys("[P]rint [V]iew", "blue")
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>>> [('blue', 'P'), 'rint ', ('blue', 'V'), 'iew']
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"""
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def _gen():
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highlighted = False
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for part in re.split("\\[|\\]", text):
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if part:
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if highlighted:
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yield (high_attr, part) if high_attr else part
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else:
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yield (low_attr, part) if low_attr else part
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highlighted = not highlighted
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return list(_gen())
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def highlight_hashtags(line, attr="hashtag"):
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return [
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(attr, p) if p.startswith("#") else p
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for p in re.split(HASHTAG_PATTERN, line)
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]
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def show_media(paths):
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"""
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Attempt to open an image viewer to show given media files.
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FIXME: This is not very thought out, but works for me.
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Once settings are implemented, add an option for the user to configure their
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prefered media viewer.
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"""
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viewer = None
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potential_viewers = [
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"feh",
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"eog",
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"display"
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]
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for v in potential_viewers:
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viewer = shutil.which(v)
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if viewer:
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break
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if not viewer:
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raise Exception("Cannot find an image viewer")
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subprocess.run([viewer] + paths)
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class LinkParser(HTMLParser):
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def reset(self):
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super().reset()
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self.links = []
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def handle_starttag(self, tag, attrs):
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if tag == "a":
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href, title = None, None
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for name, value in attrs:
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if name == "href":
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href = value
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if name == "title":
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title = value
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if href:
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self.links.append((href, title))
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def parse_content_links(content):
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"""Parse <a> tags from status's `content` and return them as a list of
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(href, title), where `title` may be None.
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"""
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parser = LinkParser()
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parser.feed(content)
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return parser.links[:]
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