|
| 1 | +# -*- coding: utf-8 -*- |
| 2 | + |
| 3 | +import re |
| 4 | +import datetime |
| 5 | + |
| 6 | +from .formatter import Formatter |
| 7 | + |
| 8 | + |
| 9 | +class AlternativeFormatter(Formatter): |
| 10 | + |
| 11 | + _TOKENS = '\[([^\[]*)\]|\\\(.)|' \ |
| 12 | + '(' \ |
| 13 | + 'Mo|MM?M?M?' \ |
| 14 | + '|Do|DDDo|DD?D?D?|ddd?d?|do?' \ |
| 15 | + '|w[o|w]?|W[o|W]?|Qo?' \ |
| 16 | + '|YYYY|YY|Y' \ |
| 17 | + '|gg(ggg?)?|GG(GGG?)?' \ |
| 18 | + '|e|E|a|A' \ |
| 19 | + '|hh?|HH?|kk?' \ |
| 20 | + '|mm?|ss?|S{1,9}' \ |
| 21 | + '|x|X' \ |
| 22 | + '|zz?|ZZ?' \ |
| 23 | + '|LTS|LT|LL?L?L?' \ |
| 24 | + ')' |
| 25 | + |
| 26 | + _FORMAT_RE = re.compile(_TOKENS) |
| 27 | + |
| 28 | + _LOCALIZABLE_TOKENS = ( |
| 29 | + 'Mo', 'MMM', 'MMMM', |
| 30 | + 'Qo', |
| 31 | + 'Do', |
| 32 | + 'DDDo', |
| 33 | + 'do', 'dd', 'ddd', 'dddd', |
| 34 | + 'wo', |
| 35 | + 'Wo', |
| 36 | + 'A', 'a', |
| 37 | + ) |
| 38 | + |
| 39 | + _TOKENS_RULES = { |
| 40 | + # Year |
| 41 | + 'YYYY': lambda dt: '{:d}'.format(dt.year), |
| 42 | + 'YY': lambda dt: '{:d}'.format(dt.year)[2:], |
| 43 | + 'Y': lambda dt: '{:d}'.format(dt.year), |
| 44 | + |
| 45 | + # Quarter |
| 46 | + 'Q': lambda dt: '{:d}'.format(dt.quarter), |
| 47 | + |
| 48 | + # Month |
| 49 | + 'MM': lambda dt: '{:02d}'.format(dt.month), |
| 50 | + 'M': lambda dt: '{:d}'.format(dt.month), |
| 51 | + |
| 52 | + # Day |
| 53 | + 'DD': lambda dt: '{:02d}'.format(dt.day), |
| 54 | + 'D': lambda dt: '{:d}'.format(dt.day), |
| 55 | + |
| 56 | + # Day of Year |
| 57 | + 'DDDD': lambda dt: '{:03d}'.format(dt.day_of_year), |
| 58 | + 'DDD': lambda dt: '{:d}'.format(dt.day_of_year), |
| 59 | + |
| 60 | + # Day of Week |
| 61 | + 'd': lambda dt: '{:d}'.format(dt.day_of_week), |
| 62 | + |
| 63 | + # Hour |
| 64 | + 'HH': lambda dt: '{:02d}'.format(dt.hour), |
| 65 | + 'H': lambda dt: '{:d}'.format(dt.hour), |
| 66 | + 'hh': lambda dt: '{:02d}'.format(dt.hour % 12 or 12), |
| 67 | + 'h': lambda dt: '{:d}'.format(dt.hour % 12 or 12), |
| 68 | + |
| 69 | + # Minute |
| 70 | + 'mm': lambda dt: '{:02d}'.format(dt.minute), |
| 71 | + 'm': lambda dt: '{:d}'.format(dt.minute), |
| 72 | + |
| 73 | + # Second |
| 74 | + 'ss': lambda dt: '{:02d}'.format(dt.second), |
| 75 | + 's': lambda dt: '{:d}'.format(dt.second), |
| 76 | + |
| 77 | + # Fractional second |
| 78 | + 'S': lambda dt: '{:1d}'.format(dt.microsecond // 100000), |
| 79 | + 'SS': lambda dt: '{:2d}'.format(dt.microsecond // 10000), |
| 80 | + 'SSS': lambda dt: '{:3d}'.format(dt.microsecond // 1000), |
| 81 | + 'SSSS': lambda dt: '{:4d}'.format(dt.microsecond // 100), |
| 82 | + 'SSSSS': lambda dt: '{:5d}'.format(dt.microsecond // 10), |
| 83 | + 'SSSSSS': lambda dt: '{:6d}'.format(dt.microsecond), |
| 84 | + |
| 85 | + # Timestamp |
| 86 | + 'X': lambda dt: '{:d}'.format(dt.timestamp), |
| 87 | + |
| 88 | + # Timezone |
| 89 | + 'z': lambda dt: '{}'.format(dt.tzinfo.abbrev), |
| 90 | + 'zz': lambda dt: '{}'.format(dt.timezone_name), |
| 91 | + } |
| 92 | + |
| 93 | + _DEFAULT_DATE_FORMATS = { |
| 94 | + 'LTS': 'h:mm:ss A', |
| 95 | + 'LT': 'h:mm A', |
| 96 | + 'L': 'MM/DD/YYYY', |
| 97 | + 'LL': 'MMMM D, YYYY', |
| 98 | + 'LLL': 'MMMM D, YYYY h:mm A', |
| 99 | + 'LLLL': 'dddd, MMMM D, YYYY h:mm A', |
| 100 | + } |
| 101 | + |
| 102 | + def format(self, dt, fmt, locale=None): |
| 103 | + """ |
| 104 | + Formats a Pendulum instance with a given format and locale. |
| 105 | +
|
| 106 | + :param dt: The instance to format |
| 107 | + :type dt: Pendulum |
| 108 | +
|
| 109 | + :param fmt: The format to use |
| 110 | + :type fmt: str |
| 111 | +
|
| 112 | + :param locale: The locale to use |
| 113 | + :type locale: str or None |
| 114 | +
|
| 115 | + :rtype: str |
| 116 | + """ |
| 117 | + if not locale: |
| 118 | + locale = dt.get_locale() |
| 119 | + |
| 120 | + return self._FORMAT_RE.sub( |
| 121 | + lambda m: m.group(1) |
| 122 | + if m.group(1) |
| 123 | + else m.group(2) |
| 124 | + if m.group(2) |
| 125 | + else self._format_token(dt, m.group(3), locale), |
| 126 | + fmt |
| 127 | + ) |
| 128 | + |
| 129 | + def _format_token(self, dt, token, locale): |
| 130 | + """ |
| 131 | + Formats a Pendulum instance with a given token and locale. |
| 132 | +
|
| 133 | + :param dt: The instance to format |
| 134 | + :type dt: Pendulum |
| 135 | +
|
| 136 | + :param token: The token to use |
| 137 | + :type token: str |
| 138 | +
|
| 139 | + :param locale: The locale to use |
| 140 | + :type locale: str or None |
| 141 | +
|
| 142 | + :rtype: str |
| 143 | + """ |
| 144 | + if token in self._DEFAULT_DATE_FORMATS: |
| 145 | + fmt = dt.translator().transchoice('date_formats', token, locale=locale) |
| 146 | + if fmt == 'date_formats': |
| 147 | + fmt = self._DEFAULT_DATE_FORMATS[token] |
| 148 | + |
| 149 | + return self.format(dt, fmt, locale) |
| 150 | + if token in self._LOCALIZABLE_TOKENS: |
| 151 | + return self._format_localizable_token(dt, token, locale) |
| 152 | + |
| 153 | + if token in self._TOKENS_RULES: |
| 154 | + return self._TOKENS_RULES[token](dt) |
| 155 | + |
| 156 | + # Timezone |
| 157 | + if token in ['ZZ', 'Z']: |
| 158 | + separator = ':' if token == 'ZZ' else '' |
| 159 | + offset = dt.utcoffset() or datetime.timedelta() |
| 160 | + minutes = offset.total_seconds() / 60 |
| 161 | + |
| 162 | + if minutes >= 0: |
| 163 | + sign = '+' |
| 164 | + else: |
| 165 | + sign = '-' |
| 166 | + |
| 167 | + hour, minute = divmod(abs(int(minutes)), 60) |
| 168 | + |
| 169 | + return '{}{:02d}{}{:02d}'.format(sign, hour, separator, minute) |
| 170 | + |
| 171 | + return token |
| 172 | + |
| 173 | + def _format_localizable_token(self, dt, token, locale): |
| 174 | + """ |
| 175 | + Formats a Pendulum instance |
| 176 | + with a given localizable token and locale. |
| 177 | +
|
| 178 | + :param dt: The instance to format |
| 179 | + :type dt: Pendulum |
| 180 | +
|
| 181 | + :param token: The token to use |
| 182 | + :type token: str |
| 183 | +
|
| 184 | + :param locale: The locale to use |
| 185 | + :type locale: str or None |
| 186 | +
|
| 187 | + :rtype: str |
| 188 | + """ |
| 189 | + if token == 'MMM': |
| 190 | + count = dt.month |
| 191 | + trans_id = 'months_abbrev' |
| 192 | + elif token == 'MMMM': |
| 193 | + count = dt.month |
| 194 | + trans_id = 'months' |
| 195 | + elif token in ('dd', 'ddd'): |
| 196 | + count = dt.day_of_week |
| 197 | + trans_id = 'days_abbrev' |
| 198 | + elif token == 'dddd': |
| 199 | + count = dt.day_of_week |
| 200 | + trans_id = 'days' |
| 201 | + elif token == 'Do': |
| 202 | + count = dt.day |
| 203 | + trans_id = 'ordinal' |
| 204 | + elif token == 'do': |
| 205 | + count = dt.day_of_week |
| 206 | + trans_id = 'ordinal' |
| 207 | + elif token == 'Mo': |
| 208 | + count = dt.month |
| 209 | + trans_id = 'ordinal' |
| 210 | + elif token == 'Qo': |
| 211 | + count = dt.quarter |
| 212 | + trans_id = 'ordinal' |
| 213 | + elif token == 'wo': |
| 214 | + count = dt.week_of_year |
| 215 | + trans_id = 'ordinal' |
| 216 | + elif token == 'DDDo': |
| 217 | + count = dt.day_of_year |
| 218 | + trans_id = 'ordinal' |
| 219 | + elif token == 'A': |
| 220 | + count = (dt.hour, dt.minute) |
| 221 | + trans_id = 'meridian' |
| 222 | + else: |
| 223 | + return token |
| 224 | + |
| 225 | + trans = dt.translator().transchoice(trans_id, count, locale=locale) |
| 226 | + |
| 227 | + if trans_id == 'ordinal': |
| 228 | + trans = '{:d}{}'.format(count, trans) |
| 229 | + |
| 230 | + if trans_id == trans: |
| 231 | + # Unable to find the corresponding translation |
| 232 | + # Defaulting to english |
| 233 | + return self._format_localizable_token(dt, token, 'en') |
| 234 | + |
| 235 | + return trans |
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