gramps/gramps/gen/datehandler/_datedisplay.py
2015-09-07 21:58:52 +01:00

732 lines
31 KiB
Python

# -*- coding: utf-8 -*-
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2004-2006 Donald N. Allingham
# Copyright (C) 2013 Vassilii Khachaturov
# Copyright (C) 2014-2015 Paul Franklin
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
"""
U.S English date display class. Should serve as the base class for all
localized tasks.
"""
#-------------------------------------------------------------------------
#
# set up logging
#
#-------------------------------------------------------------------------
import logging
log = logging.getLogger(".DateDisplay")
#-------------------------------------------------------------------------
#
# Gramps modules
#
#-------------------------------------------------------------------------
from ..lib.date import Date
from . import _grampslocale
from ..utils.grampslocale import GrampsLocale
from ._datestrings import DateStrings
#-------------------------------------------------------------------------
#
# DateDisplay
#
#-------------------------------------------------------------------------
class DateDisplay(object):
"""
Base date display class.
"""
_locale = GrampsLocale(lang='en_US', languages='en')
_tformat = _grampslocale.tformat
_ = _grampslocale.glocale.translation.sgettext
formats = (
# format 0 - must always be ISO
_("YYYY-MM-DD (ISO)"),
# format # 1 - must always be locale-preferred numerical format
# such as YY.MM.DD, MM-DD-YY, or whatever your locale prefers.
# This should be the format that is used under the locale by
# strftime() for '%x'.
# You may translate this as "Numerical", "System preferred", or similar.
_("date format|Numerical"),
# Full month name, day, year
_("Month Day, Year"),
# Abbreviated month name, day, year
_("MON DAY, YEAR"),
# Day, full month name, year
_("Day Month Year"),
# Day, abbreviated month name, year
_("DAY MON YEAR")
)
"""
.. note:: Will be overridden if a locale-specific date displayer exists.
If your localized :meth:`~_display_calendar`/:meth:`~_display_gregorian`
are overridden, you should override the whole formats list according
to your own formats, and you need not localize the format names here.
This ``formats`` must agree with
:meth:`~_display_calendar`/:meth:`~_display_gregorian`.
"""
del _
newyear = ("", "Mar1", "Mar25", "Sep1")
_bce_str = "%s B.C.E."
# this will be overridden if a locale-specific date displayer exists
def __init__(self, format=None):
self._ds = DateStrings(self._locale)
calendar = list(self._ds.calendar)
calendar[Date.CAL_GREGORIAN] = "" # that string only used in parsing,
# gregorian cal name shouldn't be output!
self.calendar = tuple(calendar)
self.short_months = self._ds.short_months
self.swedish = self.long_months = self._ds.long_months
self.hebrew = self._ds.hebrew
self.french = self._ds.french
self.persian = self._ds.persian
self.islamic = self._ds.islamic
self.display_cal = [
self._display_gregorian,
self._display_julian,
self._display_hebrew,
self._display_french,
self._display_persian,
self._display_islamic,
self._display_swedish]
self._mod_str = self._ds.modifiers
self._qual_str = self._ds.qualifiers
self.long_days = self._ds.long_days
if format is None:
self.format = 0
else:
self.format = format
self._ = _ = self._locale.translation.sgettext
self.FORMATS_long_month_year = {
# Inflection control due to modifier.
# Protocol: DateDisplayXX passes a key to the dictionary in the
# parameter ``inflect`` to ``_display_calendar``.
# The modifier passed is not necessarily the one printed, it's just
# a representative that induces the same inflection control.
# For example, in Russian "before May", "after May", and "about May"
# all require genitive form for May, whereas no modifier (just "May 1234")
# require nominative, so DateDisplayRU.display will pass "before"
# in all 3 cases, collapsing the 3 modifiers into 1.
#
# Another example in Russian is that "between April 1234 and June 1235"
# requires the same inflection for both April and June, so just "between"
# is used by DateDisplayRU.display, collapsing two more modifiers into 1.
#
# If inflect is not specified, then it means that the modifier doesn't have
# grammatical control over the format, and so the format can be
# localized in a context-free way.
# The translator is responsible for:
# 1) proper collapse of modifier classes
# 2) translating the formats that are selected in runtime
# 3) ignoring the other formats in .po (it does no harm to translate them,
# it's just a lot of extra work)
#
# To prevent POT pollution, not all possibilities are populated here yet.
# To be amended as the actual localized handlers use it.
#
# Not moving to DateStrings, as this is part of display code only,
# coupled tightly with the formats used in this file.
""
: _("{long_month} {year}"),
"from"
# first date in a span
# If "from <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("from|{long_month} {year}"),
"to"
# second date in a span
# If "to <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("to|{long_month} {year}"),
"between"
# first date in a range
# If "between <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("between|{long_month} {year}"),
"and"
# second date in a range
# If "and <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("and|{long_month} {year}"),
"before"
# If "before <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("before|{long_month} {year}"),
"after"
# If "after <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("after|{long_month} {year}"),
"about"
# If "about <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("about|{long_month} {year}"),
"estimated"
# If "estimated <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("estimated|{long_month} {year}"),
"calculated"
# If "calculated <Month>" needs a special inflection in your
# language, translate this to "{long_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("calculated|{long_month} {year}"),
}
self.FORMATS_short_month_year = {
""
: _("{short_month} {year}"),
"from"
# first date in a span
# If "from <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("from|{short_month} {year}"),
"to"
# second date in a span
# If "to <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("to|{short_month} {year}"),
"between"
# first date in a range
# If "between <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("between|{short_month} {year}"),
"and"
# second date in a range
# If "and <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("and|{short_month} {year}"),
"before"
# If "before <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("before|{short_month} {year}"),
"after"
# If "after <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("after|{short_month} {year}"),
"about"
# If "about <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("about|{short_month} {year}"),
"estimated"
# If "estimated <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("estimated|{short_month} {year}"),
"calculated"
# If "calculated <Month>" needs a special inflection in your
# language, translate this to "{short_month.f[X]} {year}"
# (where X is one of the month-name inflections you defined)
# else leave it untranslated
: _("calculated|{short_month} {year}"),
}
def set_format(self, format):
self.format = format
def format_extras(self, cal, newyear):
"""
Formats the extra items (calendar, newyear) for a date.
"""
scal = self.calendar[cal]
if isinstance(newyear, int) and newyear <= len(self.newyear):
snewyear = self.newyear[newyear]
elif isinstance(newyear, (list, tuple)):
snewyear = "%s-%s" % (newyear[0], newyear[1])
else:
snewyear = "Err"
retval = ""
for item in [scal, snewyear]:
if item:
if retval:
retval += ", "
retval += item
if retval:
return " (%s)" % retval
return ""
def display(self, date):
"""
Return a text string representing the date.
Disregard any format settings and use display_iso for each date.
(Will be overridden if a locale-specific date displayer exists.)
"""
mod = date.get_modifier()
cal = date.get_calendar()
qual = date.get_quality()
start = date.get_start_date()
newyear = date.get_new_year()
qual_str = self._qual_str[qual]
if mod == Date.MOD_TEXTONLY:
return date.get_text()
elif start == Date.EMPTY:
return ""
elif mod == Date.MOD_SPAN or mod == Date.MOD_RANGE:
d1 = self.display_iso(start)
d2 = self.display_iso(date.get_stop_date())
scal = self.format_extras(cal, newyear)
return "%s %s - %s%s" % (qual_str, d1, d2, scal)
else:
text = self.display_iso(start)
scal = self.format_extras(cal, newyear)
return "%s%s%s%s" % (qual_str, self._mod_str[mod], text, scal)
def _slash_year(self, val, slash):
if val < 0:
val = - val
if slash:
if (val-1) % 100 == 99:
year = "%d/%d" % (val - 1, (val%1000))
elif (val-1) % 10 == 9:
year = "%d/%d" % (val - 1, (val%100))
else:
year = "%d/%d" % (val - 1, (val%10))
else:
year = "%d" % (val)
return year
def display_iso(self, date_val):
# YYYY-MM-DD (ISO)
year = self._slash_year(date_val[2], date_val[3])
# This produces 1789, 1789-00-11 and 1789-11-00 for incomplete dates.
if date_val[0] == date_val[1] == 0:
# No month and no day -> year
value = year
else:
value = "%s-%02d-%02d" % (year, date_val[1], date_val[0])
if date_val[2] < 0:
return self._bce_str % value
else:
return value
def dd_span(self, date):
"""
Return a text string representing the span date
(it may be overridden if a locale-specific date displayer exists)
"""
cal = date.get_calendar()
qual_str = self._qual_str[date.get_quality()]
scal = self.format_extras(cal, date.get_new_year())
d1 = self.display_cal[cal](date.get_start_date(),
# If there is no special inflection for "from <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "from" in ENGLISH!!! ENGLISH!!!
inflect=self._("from-date|"))
d2 = self.display_cal[cal](date.get_stop_date(),
# If there is no special inflection for "to <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "to" in ENGLISH!!! ENGLISH!!!
inflect=self._("to-date|"))
return self._("{date_quality}from {date_start} to {date_stop}"
"{nonstd_calendar_and_ny}").format(
date_quality=qual_str,
date_start=d1,
date_stop=d2,
nonstd_calendar_and_ny=scal)
def dd_range(self, date):
"""
Return a text string representing the range date
(it may be overridden if a locale-specific date displayer exists)
"""
cal = date.get_calendar()
qual_str = self._qual_str[date.get_quality()]
scal = self.format_extras(cal, date.get_new_year())
d1 = self.display_cal[cal](date.get_start_date(),
# If there is no special inflection for "between <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "between" in ENGLISH!!! ENGLISH!!!
inflect=self._("between-date|"))
d2 = self.display_cal[cal](date.get_stop_date(),
# If there is no special inflection for "and <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "and" in ENGLISH!!! ENGLISH!!!
inflect=self._("and-date|"))
return self._("{date_quality}between {date_start} and {date_stop}"
"{nonstd_calendar_and_ny}").format(
date_quality=qual_str,
date_start=d1,
date_stop=d2,
nonstd_calendar_and_ny=scal)
def display_formatted(self, date):
"""
Return a text string representing the date, according to the format.
"""
mod = date.get_modifier()
cal = date.get_calendar()
qual = date.get_quality()
start = date.get_start_date()
newyear = date.get_new_year()
qual_str = self._qual_str[qual]
_ = self._
if mod == Date.MOD_TEXTONLY:
return date.get_text()
elif start == Date.EMPTY:
return ""
elif mod == Date.MOD_SPAN:
return self.dd_span(date)
elif mod == Date.MOD_RANGE:
return self.dd_range(date)
else:
if mod == Date.MOD_BEFORE:
# If there is no special inflection for "before <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "before" in ENGLISH!!! ENGLISH!!!
date_type = _("before-date|")
elif mod == Date.MOD_AFTER:
# If there is no special inflection for "after <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "after" in ENGLISH!!! ENGLISH!!!
date_type = _("after-date|")
elif mod == Date.MOD_ABOUT:
# If there is no special inflection for "about <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "about" in ENGLISH!!! ENGLISH!!!
date_type = _("about-date|")
elif qual == Date.QUAL_ESTIMATED:
# If there is no special inflection for "estimated <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "estimated" in ENGLISH!!! ENGLISH!!!
date_type = _("estimated-date|")
elif qual == Date.QUAL_CALCULATED:
# If there is no special inflection for "calculated <Month>"
# in your language, DON'T translate this string. Otherwise,
# "translate" this to "calculated" in ENGLISH!!! ENGLISH!!!
date_type = _("calculated-date|")
else:
date_type = ""
# TODO -- do "estimated" and "calculated" need their own "if"?
# i.e., what happens if a date is both "modified" and "qualified"?
# it won't matter if the month gets the same lexeme type, but
# what should be done if the types differ? there can only be one
# lexeme type for any month so which one should be last? so we
# will wait and see if any language ever requires such fine tuning
# as maybe it will be as simple as putting the "elif" choices for
# "estimated" and "calculated" before the others, or something
text = self.display_cal[cal](start, inflect=date_type)
modifier = self._mod_str[mod]
# some languages have a modifier after the date (e.g. Finnish)
# (if so, they are specified in DateParser.modifier_after_to_int)
if modifier.startswith(' '):
text += modifier
modifier = ''
scal = self.format_extras(cal, newyear)
return _("{date_quality}{noncompound_modifier}{date}"
"{nonstd_calendar_and_ny}").format(
date_quality=qual_str,
noncompound_modifier=modifier,
date=text,
nonstd_calendar_and_ny=scal)
def _display_gregorian(self, date_val, **kwargs):
return self._display_calendar(date_val, self.long_months,
self.short_months, **kwargs)
# Julian and Swedish date display is the same as Gregorian
_display_julian = _display_swedish = _display_gregorian
def format_long_month_year(self, month, year, inflect, long_months):
if not hasattr(long_months[1], 'f'): # not a Lexeme: no inflection
return "{long_month} {year}".format(
long_month = long_months[month], year = year)
return self.FORMATS_long_month_year[inflect].format(
long_month = long_months[month], year = year)
def format_short_month_year(self, month, year, inflect, short_months):
if not hasattr(short_months[1], 'f'): # not a Lexeme: no inflection
return "{short_month} {year}".format(
short_month = short_months[month], year = year)
return self.FORMATS_short_month_year[inflect].format(
short_month = short_months[month], year = year)
def format_long_month(self, month, inflect, long_months):
if not hasattr(long_months[1], 'f'): # not a Lexeme: no inflection
return "{long_month}".format(long_month = long_months[month])
return self.FORMATS_long_month_year[inflect].format(
long_month = long_months[month], year = '').rstrip()
def format_short_month(self, month, inflect, short_months):
if not hasattr(short_months[1], 'f'): # not a Lexeme: no inflection
return "{short_month}".format(short_month = short_months[month])
return self.FORMATS_short_month_year[inflect].format(
short_month = short_months[month], year = '').rstrip()
def dd_dformat01(self, date_val):
"""
numerical
this must agree with DateDisplayEn's "formats" definition
(it may be overridden if a locale-specific date displayer exists)
"""
if date_val[3]:
return self.display_iso(date_val)
else:
if date_val[0] == date_val[1] == 0:
return str(date_val[2])
else:
value = self._tformat.replace('%m', str(date_val[1]))
if date_val[0] == 0: # ignore the zero day and its delimiter
i_day = value.find('%d')
value = value.replace(value[i_day:i_day+3], '')
value = value.replace('%d', str(date_val[0]))
value = value.replace('%Y', str(abs(date_val[2])))
return value.replace('-', '/')
def dd_dformat02(self, date_val, inflect, long_months):
"""
month_name day, year
this must agree with DateDisplayEn's "formats" definition
(it may be overridden if a locale-specific date displayer exists)
"""
_ = self._locale.translation.sgettext
year = self._slash_year(date_val[2], date_val[3])
if date_val[0] == 0:
if date_val[1] == 0:
return year
else:
return self.format_long_month_year(date_val[1], year,
inflect, long_months)
elif date_val[1] == 0: # month is zero but day is not (see 8477)
return self.display_iso(date_val)
else:
# TRANSLATORS: this month is ALREADY inflected: ignore it
return _("{long_month} {day:d}, {year}").format(
long_month = self.format_long_month(date_val[1],
inflect,
long_months),
day = date_val[0],
year = year)
def dd_dformat03(self, date_val, inflect, short_months):
"""
month_abbreviation day, year
this must agree with DateDisplayEn's "formats" definition
(it may be overridden if a locale-specific date displayer exists)
"""
_ = self._locale.translation.sgettext
year = self._slash_year(date_val[2], date_val[3])
if date_val[0] == 0:
if date_val[1] == 0:
return year
else:
return self.format_short_month_year(date_val[1], year,
inflect, short_months)
elif date_val[1] == 0: # month is zero but day is not (see 8477)
return self.display_iso(date_val)
else:
# TRANSLATORS: this month is ALREADY inflected: ignore it
return _("{short_month} {day:d}, {year}").format(
short_month = self.format_short_month(date_val[1],
inflect,
short_months),
day = date_val[0],
year = year)
def dd_dformat04(self, date_val, inflect, long_months):
"""
day month_name year
this must agree with DateDisplayEn's "formats" definition
(it may be overridden if a locale-specific date displayer exists)
"""
_ = self._locale.translation.sgettext
year = self._slash_year(date_val[2], date_val[3])
if date_val[0] == 0:
if date_val[1] == 0:
return year
else:
return self.format_long_month_year(date_val[1], year,
inflect, long_months)
elif date_val[1] == 0: # month is zero but day is not (see 8477)
return self.display_iso(date_val)
else:
# TRANSLATORS: this month is ALREADY inflected: ignore it
return _("{day:d} {long_month} {year}").format(
day = date_val[0],
long_month = self.format_long_month(date_val[1],
inflect,
long_months),
year = year)
def dd_dformat05(self, date_val, inflect, short_months):
"""
day month_abbreviation year
this must agree with DateDisplayEn's "formats" definition
(it may be overridden if a locale-specific date displayer exists)
"""
_ = self._locale.translation.sgettext
year = self._slash_year(date_val[2], date_val[3])
if date_val[0] == 0:
if date_val[1] == 0:
return year
else:
return self.format_short_month_year(date_val[1], year,
inflect, short_months)
elif date_val[1] == 0: # month is zero but day is not (see 8477)
return self.display_iso(date_val)
else:
# TRANSLATORS: this month is ALREADY inflected: ignore it
return _("{day:d} {short_month} {year}").format(
day = date_val[0],
short_month = self.format_short_month(date_val[1],
inflect,
short_months),
year = year)
def _display_calendar(self, date_val, long_months, short_months = None,
inflect=""):
"""
this must agree with DateDisplayEn's "formats" definition
(it may be overridden if a locale-specific date displayer exists)
"""
if short_months is None:
# Let the short formats work the same as long formats
short_months = long_months
if self.format == 0:
return self.display_iso(date_val)
elif self.format == 1:
# numerical
value = self.dd_dformat01(date_val)
elif self.format == 2:
# month_name day, year
value = self.dd_dformat02(date_val, inflect, long_months)
elif self.format == 3:
# month_abbreviation day, year
value = self.dd_dformat03(date_val, inflect, short_months)
elif self.format == 4:
# day month_name year
value = self.dd_dformat04(date_val, inflect, long_months)
# elif self.format == 5:
else:
# day month_abbreviation year
value = self.dd_dformat05(date_val, inflect, short_months)
if date_val[2] < 0:
# TODO fix BUG 7064: non-Gregorian calendars wrongly use BCE notation for negative dates
return self._bce_str % value
else:
return value
def _display_french(self, date_val, **kwargs):
return self._display_calendar(date_val, self.french, **kwargs)
def _display_hebrew(self, date_val, **kwargs):
return self._display_calendar(date_val, self.hebrew, **kwargs)
def _display_persian(self, date_val, **kwargs):
return self._display_calendar(date_val, self.persian, **kwargs)
def _display_islamic(self, date_val, **kwargs):
return self._display_calendar(date_val, self.islamic, **kwargs)
class DateDisplayEn(DateDisplay):
"""
English language date display class.
"""
def __init__(self, format=None):
"""
Create a DateDisplay class that converts a Date object to a string
of the desired format. The format value must correspond to the format
list value (DateDisplay.format[]).
"""
DateDisplay.__init__(self, format)
display = DateDisplay.display_formatted
_locale = DateDisplay._locale # normally set in register_datehandler