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/*
* This file is part of the ICanBoogie package.
*
* (c) Olivier Laviale <olivier.laviale@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace ICanBoogie\CLDR;
use ICanBoogie\Accessor\AccessorTrait;
/**
* Provides date and time localization.
*
* The class allows you to format dates and times in a locale-sensitive manner using
* {@link http://www.unicode.org/reports/tr35/#Date_Format_Patterns Unicode format patterns}.
*
* @property-read Calendar $calendar The calendar used by the formatter.
*/
class DateTimeFormatter implements Formatter
{
use AccessorTrait;
/**
* Pattern characters mapping to the corresponding translator methods.
*
* @var array
*/
static protected $formatters = [
'G' => 'format_era',
'y' => 'format_year',
// 'Y' => Year (in "Week of Year" based calendars).
// 'u' => Extended year.
'Q' => 'format_quarter',
'q' => 'format_standalone_quarter',
'M' => 'format_month',
'L' => 'format_standalone_month',
// 'l' => Special symbol for Chinese leap month, used in combination with M. Only used with the Chinese calendar.
'w' => 'format_week_of_year',
'W' => 'format_week_of_month',
'd' => 'format_day_of_month',
'D' => 'format_day_of_year',
'F' => 'format_day_of_week_in_month',
'h' => 'format_hour12',
'H' => 'format_hour24',
'm' => 'format_minutes',
's' => 'format_seconds',
'E' => 'format_day_in_week',
'c' => 'format_day_in_week',
'e' => 'format_day_in_week',
'a' => 'format_period',
'k' => 'format_hour_in_day',
'K' => 'format_hour_in_period',
'z' => 'format_timezone',
'Z' => 'format_timezone',
'v' => 'format_timezone'
];
/**
* Parses the datetime format pattern.
*
* @param string $pattern The pattern to be parsed.
*
* @return array Tokenized parsing result.
*/
static protected function tokenize($pattern)
{
static $formats = [];
if (isset($formats[$pattern]))
{
return $formats[$pattern];
}
$tokens = [];
$is_literal = false;
$literal = '';
for ($i = 0, $n = strlen($pattern) ; $i < $n ; ++$i)
{
$c = $pattern{$i};
if ($c === "'")
{
if ($i < $n-1 && $pattern{$i+1} === "'")
{
$tokens[] = "'";
$i++;
}
else if ($is_literal)
{
$tokens[] = $literal;
$literal = '';
$is_literal = false;
}
else
{
$is_literal = true;
$literal = '';
}
}
else if ($is_literal)
{
$literal .= $c;
}
else
{
for ($j = $i + 1 ; $j < $n ; ++$j)
{
if ($pattern{$j} !== $c) break;
}
$l = $j-$i;
$p = str_repeat($c, $l);
$tokens[] = isset(self::$formatters[$c]) ? [ self::$formatters[$c], $p, $l ] : $p;
$i = $j - 1;
}
}
if ($literal)
{
$tokens[] = $literal;
}
return $formats[$pattern] = $tokens;
}
/**
* The calendar used to format the datetime.
*
* @var Calendar
*/
protected $calendar;
/**
* @return Calendar
*/
protected function get_calendar()
{
return $this->calendar;
}
/**
* Initializes the {@link $calendar} property.
*
* @param Calendar $calendar
*/
public function __construct(Calendar $calendar)
{
$this->calendar = $calendar;
}
/**
* Alias to the {@link format()} method.
*
* @param mixed $datetime
* @param string $pattern_or_width_or_skeleton
*
* @return string
*/
public function __invoke($datetime, $pattern_or_width_or_skeleton)
{
return $this->format($datetime, $pattern_or_width_or_skeleton);
}
/**
* Formats a date according to a pattern.
*
* <pre>
* <?php
*
* $datetime_formatter = $repository->locales['en']->calendar->datetime_formatter;
* $datetime = '2013-11-02 22:23:45';
*
* echo $datetime_formatter($datetime, "MMM d, y"); // November 2, 2013 at 10:23:45 PM
* echo $datetime_formatter($datetime, "MMM d, y 'at' hh:mm:ss a"); // November 2, 2013 at 10:23:45 PM
* echo $datetime_formatter($datetime, 'full'); // Saturday, November 2, 2013 at 10:23:45 PM CET
* echo $datetime_formatter($datetime, 'long'); // November 2, 2013 at 10:23:45 PM CET
* echo $datetime_formatter($datetime, 'medium'); // Nov 2, 2013, 10:23:45 PM
* echo $datetime_formatter($datetime, 'short'); // 11/2/13, 10:23 PM
* echo $datetime_formatter($datetime, ':Ehm'); // Sat 10:23 PM
* </pre>
*
* @param \DateTimeInterface|string|int $datetime The datetime to format.
* @param string $pattern_or_width_or_skeleton The datetime can be formatted using a pattern,
* a width or a skeleton. The following width are defined: "full", "long", "medium" and "short".
* To format the datetime using a so-called "skeleton", the skeleton identifier must be
* prefixed with the colon sign ":" e.g. ":Ehm". The skeleton identifies the patterns defined
* under `availableFormats`.
*
* @return string The formatted date time.
*
* @see http://www.unicode.org/reports/tr35/#Date_Format_Patterns
*/
public function format($datetime, $pattern_or_width_or_skeleton)
{
$datetime = $this->ensure_datetime($datetime);
$datetime = new DateTimeAccessor($datetime);
$pattern = $this->resolve_pattern($pattern_or_width_or_skeleton);
$tokens = self::tokenize($pattern);
$rc = '';
foreach ($tokens as $token)
{
if (is_array($token)) // a callback: method name, sub-pattern
{
$token = $this->{$token[0]}($datetime, $token[1], $token[2]);
}
$rc .= $token;
}
return $rc;
}
/**
* Resolves the specified pattern, which can be a width, a skeleton or an actual pattern.
*
* @param string $pattern_or_width_or_skeleton
*
* @return string
*/
protected function resolve_pattern($pattern_or_width_or_skeleton)
{
$pattern = $pattern_or_width_or_skeleton;
if ($pattern_or_width_or_skeleton{0} === ':')
{
$skeleton = substr($pattern, 1);
$available_formats = $this->calendar['dateTimeFormats']['availableFormats'];
if (isset($available_formats[$skeleton]))
{
$pattern = $available_formats[$skeleton];
}
}
else if (in_array($pattern = $pattern_or_width_or_skeleton, [ 'full', 'long', 'medium', 'short' ]))
{
$calendar = $this->calendar;
$width = $pattern_or_width_or_skeleton;
$datetime_pattern = $calendar['dateTimeFormats'][$width];
$date_pattern = $calendar['dateFormats'][$width];
$time_pattern = $calendar['timeFormats'][$width];
$pattern = strtr($datetime_pattern, [ '{1}' => $date_pattern, '{0}' => $time_pattern ]);
}
return $pattern;
}
/**
* Resolves widths (full, long, medium, short) into a pattern.
*
* @param string $pattern_or_width_or_skeleton
* @param string $from Width Source e.g. "timeFormats".
*
* @return string
*/
protected function resolve_width($pattern_or_width_or_skeleton, $from)
{
static $widths = [ 'full', 'long', 'medium', 'short' ];
if (in_array($pattern_or_width_or_skeleton, $widths))
{
return $this->calendar[$from][$pattern_or_width_or_skeleton];
}
return $pattern_or_width_or_skeleton;
}
/*
* era (G)
*/
/**
* Era - Replaced with the Era string for the current date. One to three letters for the
* abbreviated form, four letters for the long form, five for the narrow form. [1..3,4,5]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string era
* @todo How to support multiple Eras?, e.g. Japanese.
*/
protected function format_era(DateTimeAccessor $datetime, $pattern, $length)
{
$era = ($datetime->year > 0) ? 1 : 0;
switch($length)
{
case 1:
case 2:
case 3: return $this->calendar->abbreviated_eras[$era];
case 4: return $this->calendar->wide_eras[$era];
case 5: return $this->calendar->narrow_eras[$era];
}
}
/*
* year (y)
*/
/**
* Year. Normally the length specifies the padding, but for two letters it also specifies the
* maximum length. [1..n]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string formatted year
*/
protected function format_year(DateTimeAccessor $datetime, $pattern, $length)
{
$year = $datetime->year;
if ($length == 2)
{
$year = $year % 100;
}
return str_pad($year, $length, '0', STR_PAD_LEFT);
}
/*
* quarter (Q,q)
*/
/**
* Quarter - Use one or two "Q" for the numerical quarter, three for the abbreviation, or four
* for the full (wide) name. [1..2,3,4]
*
* @param DateTimeAccessor $datetime Datetime.
* @param string $pattern Pattern.
* @param int $length Number of repetition.
*
* @return string
*/
protected function format_quarter(DateTimeAccessor $datetime, $pattern, $length)
{
$quarter = $datetime->quarter;
switch ($length)
{
case 1: return $quarter;
case 2: return str_pad($quarter, 2, '0', STR_PAD_LEFT);
case 3: return $this->calendar->abbreviated_quarters[$quarter];
case 4: return $this->calendar->wide_quarters[$quarter];
}
}
/**
* Stand-Alone Quarter - Use one or two "q" for the numerical quarter, three for the
* abbreviation, or four for the full (wide) name. [1..2,3,4]
*
* @param DateTimeAccessor $datetime Datetime.
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string
*/
protected function format_standalone_quarter(DateTimeAccessor $datetime, $pattern, $length)
{
$quarter = $datetime->quarter;
switch ($length)
{
case 1: return $quarter;
case 2: return str_pad($quarter, 2, '0', STR_PAD_LEFT);
case 3: return $this->calendar->standalone_abbreviated_quarters[$quarter];
case 4: return $this->calendar->standalone_wide_quarters[$quarter];
}
}
/*
* month (M|L)
*/
/**
* Month - Use one or two "M" for the numerical month, three for the abbreviation, four for
* the full name, or five for the narrow name. [1..2,3,4,5]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string
*/
protected function format_month(DateTimeAccessor $datetime, $pattern, $length)
{
$month = $datetime->month;
switch ($length)
{
case 1: return $month;
case 2: return str_pad($month, 2, '0', STR_PAD_LEFT);
case 3: return $this->calendar->abbreviated_months[$month];
case 4: return $this->calendar->wide_months[$month];
case 5: return $this->calendar->narrow_months[$month];
}
}
/**
* Stand-Alone Month - Use one or two "L" for the numerical month, three for the abbreviation,
* or four for the full (wide) name, or 5 for the narrow name. [1..2,3,4,5]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string formatted month.
*/
protected function format_standalone_month(DateTimeAccessor $datetime, $pattern, $length)
{
$month = $datetime->month;
switch ($length)
{
case 1: return $month;
case 2: return str_pad($month, 2, '0', STR_PAD_LEFT);
case 3: return $this->calendar->standalone_abbreviated_months[$month];
case 4: return $this->calendar->standalone_wide_months[$month];
case 5: return $this->calendar->standalone_narrow_months[$month];
}
}
/*
* week (w|W)
*/
/**
* Week of Year. [1..2]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return integer
*/
protected function format_week_of_year(DateTimeAccessor $datetime, $pattern, $length)
{
if ($length > 2)
{
return 0;
}
$week = $datetime->week;
return $length == 1 ? $week : str_pad($week, 2, '0', STR_PAD_LEFT);
}
/**
* Week of Month. [1]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return int|false Week of month, of `false` if `$length` is greater than 1.
*/
protected function format_week_of_month(DateTimeAccessor $datetime, $pattern, $length)
{
if ($length == 1)
{
return ceil($datetime->day / 7);
}
return false;
}
/*
* day (d,D,F)
*/
/**
* Date - Day of the month. [1..2]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string day of the month
*/
protected function format_day_of_month(DateTimeAccessor $datetime, $pattern, $length)
{
$day = $datetime->day;
if ($length == 1)
{
return $day;
}
else if ($length == 2)
{
return str_pad($day, 2, '0', STR_PAD_LEFT);
}
}
/**
* Day of year. [1..3]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string
*/
protected function format_day_of_year(DateTimeAccessor $datetime, $pattern, $length)
{
$day = $datetime->year_day;
if ($length > 3)
{
return '';
}
return str_pad($day, $length, '0', STR_PAD_LEFT);
}
/**
* Day of Week in Month. The example is for the 2nd Wed in July. [1]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return int|false Day of week in month, or `false` if `$length` is greater than 1.
*/
protected function format_day_of_week_in_month(DateTimeAccessor $datetime, $pattern, $length)
{
if ($length == 1)
{
return floor(($datetime->day + 6) / 7);
}
return false;
}
/*
* weekday (E,e,c)
*/
/**
* Day of week - Use one through three letters for the short day, or four for the full name,
* five for the narrow name, or six for the short name. [1..3,4,5,6]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
*
* @return string
*/
protected function format_day_in_week(DateTimeAccessor $datetime, $pattern)
{
static $translate = [
1 => 'mon',
2 => 'tue',
3 => 'wed',
4 => 'thu',
5 => 'fri',
6 => 'sat',
7 => 'sun'
];
$day = $datetime->weekday;
switch ($pattern)
{
case 'E':
case 'EE':
case 'EEE':
case 'eee':
return $this->calendar->abbreviated_days[$translate[$day]];
case 'EEEE':
case 'eeee':
return $this->calendar->wide_days[$translate[$day]];
case 'EEEEE':
case 'eeeee':
return $this->calendar->narrow_days[$translate[$day]];
case 'EEEEEE':
case 'eeeeee':
return $this->calendar->short_days[$translate[$day]];
case 'e':
case 'ee':
case 'c':
return $day;
case 'ccc':
return $this->calendar->standalone_abbreviated_days[$translate[$day]];
case 'cccc':
return $this->calendar->standalone_wide_days[$translate[$day]];
case 'ccccc':
return $this->calendar->standalone_narrow_days[$translate[$day]];
case 'cccccc':
return $this->calendar->standalone_short_days[$translate[$day]];
}
}
/*
* period (a)
*/
/**
* AM or PM. [1]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string AM or PM designator
*/
protected function format_period(DateTimeAccessor $datetime, $pattern, $length)
{
return $this->calendar['dayPeriods']['format']['abbreviated'][$datetime->hour < 12 ? 'am' : 'pm'];
}
/*
* hour (h,H,K,k)
*/
/**
* Hour [1-12]. When used in skeleton data or in a skeleton passed in an API for flexible data
* pattern generation, it should match the 12-hour-cycle format preferred by the locale
* (h or K); it should not match a 24-hour-cycle format (H or k). Use hh for zero
* padding. [1..2]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string
*/
protected function format_hour12(DateTimeAccessor $datetime, $pattern, $length)
{
$hour = $datetime->hour;
$hour = ($hour == 12) ? 12 : $hour % 12;
if ($length == 1)
{
return $hour;
}
else if ($length == 2)
{
return str_pad($hour, 2, '0', STR_PAD_LEFT);
}
}
/**
* Hour [0-23]. When used in skeleton data or in a skeleton passed in an API for flexible
* data pattern generation, it should match the 24-hour-cycle format preferred by the
* locale (H or k); it should not match a 12-hour-cycle format (h or K). Use HH for zero
* padding. [1..2]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string
*/
protected function format_hour24(DateTimeAccessor $datetime, $pattern, $length)
{
$hour = $datetime->hour;
if ($length == 1)
{
return $hour;
}
else if ($length == 2)
{
return str_pad($hour, 2, '0', STR_PAD_LEFT);
}
}
/**
* Hour [0-11]. When used in a skeleton, only matches K or h, see above. Use KK for zero
* padding. [1..2]
*
* @param DateTimeAccessor $datetime
* @param string $pattern A pattern.
* @param int $length Number of repetition.
*
* @return integer hours in AM/PM format.
*/
protected function format_hour_in_period(DateTimeAccessor $datetime, $pattern, $length)
{
$hour = $datetime->hour % 12;
if ($length == 1)
{
return $hour;
}
else if ($length == 2)
{
return str_pad($hour, 2, '0', STR_PAD_LEFT);
}
}
/**
* Hour [1-24]. When used in a skeleton, only matches k or H, see above. Use kk for zero
* padding. [1..2]
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return integer
*/
protected function format_hour_in_day(DateTimeAccessor $datetime, $pattern, $length)
{
$hour = $datetime->hour;
if ($hour == 0)
{
$hour = 24;
}
if ($length == 1)
{
return $hour;
}
else if ($length == 2)
{
return str_pad($hour, 2, '0', STR_PAD_LEFT);
}
}
/*
* minute (m)
*/
/**
* Minute. Use one or two "m" for zero padding.
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition
*
* @return string minutes.
*/
protected function format_minutes(DateTimeAccessor $datetime, $pattern, $length)
{
$minutes = $datetime->minute;
if ($length == 1)
{
return $minutes;
}
else if ($length == 2)
{
return str_pad($minutes, 2, '0', STR_PAD_LEFT);
}
}
/*
* second
*/
/**
* Second. Use one or two "s" for zero padding.
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string seconds
*/
protected function format_seconds(DateTimeAccessor $datetime, $pattern, $length)
{
$seconds = $datetime->second;
if ($length == 1)
{
return $seconds;
}
else if ($length == 2)
{
return str_pad($seconds, 2, '0', STR_PAD_LEFT);
}
}
/*
* zone (z,Z,v)
*/
/**
* Time Zone.
*
* @param DateTimeAccessor $datetime
* @param string $pattern a pattern.
* @param int $length Number of repetition.
*
* @return string time zone
*/
protected function format_timezone(DateTimeAccessor $datetime, $pattern, $length)
{
if ($pattern{0} === 'z' || $pattern{0} === 'v')
{
$str = $datetime->format('T');
return $str === 'Z' ? 'UTC' : $str;
}
else if ($pattern{0} === 'Z')
{
return $datetime->format('O');
}
}
/**
* @param \DateTimeInterface|string|int $datetime
*
* @return \DateTimeInterface
*/
private function ensure_datetime($datetime)
{
if ($datetime instanceof \DateTimeInterface)
{
return $datetime;
}
return new \DateTime(is_numeric($datetime) ? "@$datetime" : (string) $datetime);
}
}