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Diffstat (limited to 'raphodo/timeutils.py')
| -rw-r--r-- | raphodo/timeutils.py | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/raphodo/timeutils.py b/raphodo/timeutils.py new file mode 100644 index 0000000..fca1f8f --- /dev/null +++ b/raphodo/timeutils.py @@ -0,0 +1,110 @@ +# Copyright (C) 2015-2017 Damon Lynch <damonlynch@gmail.com> + +# This file is part of Rapid Photo Downloader. +# +# Rapid Photo Downloader is free software: you can redistribute it and/or +# modify it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Rapid Photo Downloader is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Rapid Photo Downloader. If not, +# see <http://www.gnu.org/licenses/>. + +# A few utility functions relating to time conversion and internationalization + +import locale +from datetime import datetime +import re + +from arrow.arrow import Arrow +from gettext import gettext as _ + + +def twelve_hour_clock() -> bool: + """ + Determine if a twelve hour clock is being used in the current locale + + :return: True if so, else False + """ + + return bool(locale.nl_langinfo(locale.T_FMT_AMPM)) + + +replacement_fmts = [ + ('.%S', ''), + (':%S', ''), + (',%S', ''), + (':%OS', ''), + ('ཀསར་ཆ%S', ''), + (' %S초', ''), + ('%S秒', ''), + ('%r', '%I:%M'), + ('%t', '%H:%M'), + ('%T', '%H:%M') +] + +dt_am = datetime(2015, 11, 3, 1) +dt_pm = datetime(2015, 11, 3, 13) + + +def locale_time(t: datetime) -> str: + """ + Attempt to localize the time without displaying seconds + + locale.nl_langinfo(locale.T_FMT) for this locale is %r, %T or %t, + then just return the time, dropping the ':dd' in 'dd:dd:dd' if + that's the format the time is in. + + Otherwise, then use the approach here: + Adapted from http://stackoverflow.com/questions/2507726/how-to-display + -locale-sensitive-time-format-without-seconds-in-python + :param t: time in datetime format + :return: time in format like "12:08 AM", or locale equivalent + """ + + t_fmt = locale.nl_langinfo(locale.T_FMT_AMPM) or locale.nl_langinfo(locale.T_FMT) + + if t_fmt in ('%r', '%t', '%T'): + s = t.strftime('%X').strip() + return re.sub(r"(\d\d):(\d\d):\d\d", r"\1:\2", s) + + for fmt in replacement_fmts: + new_t_fmt = t_fmt.replace(*fmt) + if new_t_fmt != t_fmt: + return t.strftime(new_t_fmt) + + return t.strftime(t_fmt) + + +def strip_zero(t: str, strip_zero) -> str: + if not strip_zero: + return t.strip() + return t.lstrip('0').strip() + + +def strip_am(t: str) -> str: + if not locale.nl_langinfo(locale.T_FMT_AMPM): + return t.strip() + return t.replace(dt_am.strftime('%p'), '').strip() + + +def strip_pm(t: str) -> str: + if not locale.nl_langinfo(locale.T_FMT_AMPM): + return t.strip() + return t.replace(dt_pm.strftime('%p'), '').strip() + + +def make_long_date_format(arrowtime: Arrow) -> str: + # Translators: for example Nov 3 or Dec 31 + long_format = _('%(month)s %(numeric_day)s') % { + 'month': arrowtime.datetime.strftime('%b'), + 'numeric_day': arrowtime.format('D') + } + # Translators: for example Nov 15 2015 + return _('%(date)s %(year)s') % dict(date=long_format, year=arrowtime.year)
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