From 6845c00a3f752abecd9ef763848329bceaf63df4 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Fri, 31 Mar 2006 12:42:22 +0000
Subject: Reorganized folders under framework. This may break existing
applications.
---
framework/Util/TSimpleDateFormatter.php | 354 ++++++++++++++++++++++++++++++++
1 file changed, 354 insertions(+)
create mode 100644 framework/Util/TSimpleDateFormatter.php
(limited to 'framework/Util/TSimpleDateFormatter.php')
diff --git a/framework/Util/TSimpleDateFormatter.php b/framework/Util/TSimpleDateFormatter.php
new file mode 100644
index 00000000..ce92a272
--- /dev/null
+++ b/framework/Util/TSimpleDateFormatter.php
@@ -0,0 +1,354 @@
+
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2006 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ */
+
+/**
+ * TSimpleDateFormatter class.
+ *
+ * Formats and parses dates using the SimpleDateFormat pattern.
+ * This pattern is compatible with the I18N and java's SimpleDateFormatter.
+ *
+ * Pattern | Description
+ * ----------------------------------------------------
+ * d | Day of month 1 to 31, no padding
+ * dd | Day of monath 01 to 31, zero leading
+ * M | Month digit 1 to 12, no padding
+ * MM | Month digit 01 to 12, zero leading
+ * yy | 2 year digit, e.g., 96, 05
+ * yyyy | 4 year digit, e.g., 2005
+ * ----------------------------------------------------
+ *
+ *
+ * Usage example, to format a date
+ *
+ * $formatter = new TSimpleDateFormatter("dd/MM/yyy");
+ * echo $formatter->format(time());
+ *
+ *
+ * To parse the date string into a date timestamp.
+ *
+ * $formatter = new TSimpleDateFormatter("d-M-yyy");
+ * echo $formatter->parse("24-6-2005");
+ *
+ *
+ * @author Wei Zhuo
+ * @version $Revision: $ $Date: $
+ * @package System.Util
+ * @since 3.0
+ */
+class TSimpleDateFormatter
+{
+ /**
+ * Formatting pattern.
+ * @var string
+ */
+ private $pattern;
+
+ /**
+ * Charset, default is 'UTF-8'
+ * @var string
+ */
+ private $charset = 'UTF-8';
+
+ /**
+ * Constructor, create a new date time formatter.
+ * @param string formatting pattern.
+ * @param string pattern and value charset
+ */
+ public function __construct($pattern, $charset='UTF-8')
+ {
+ $this->setPattern($pattern);
+ $this->setCharset($charset);
+ }
+
+ /**
+ * @return string formatting pattern.
+ */
+ public function getPattern()
+ {
+ return $this->pattern;
+ }
+
+ /**
+ * @param string formatting pattern.
+ */
+ public function setPattern($pattern)
+ {
+ $this->pattern = $pattern;
+ }
+
+ /**
+ * @return string formatting charset.
+ */
+ public function getCharset()
+ {
+ return $this->charset;
+ }
+
+ /**
+ * @param string formatting charset.
+ */
+ public function setCharset($charset)
+ {
+ $this->charset = $charset;
+ }
+
+ /**
+ * Format the date according to the pattern.
+ * @param string|int the date to format, either integer or a string readable by strtotime.
+ * @return string formatted date.
+ */
+ public function format($value)
+ {
+ $date = $this->getDate($value);
+ $bits['yyyy'] = $date['year'];
+ $bits['yy'] = substr("{$date['year']}", -2);
+
+ $bits['MM'] = str_pad("{$date['mon']}", 2, '0', STR_PAD_LEFT);
+ $bits['M'] = $date['mon'];
+
+ $bits['dd'] = str_pad("{$date['mday']}", 2, '0', STR_PAD_LEFT);
+ $bits['d'] = $date['mday'];
+
+ return str_replace(array_keys($bits), $bits, $this->pattern);
+ }
+
+ public function getMonthPattern()
+ {
+ if(is_int(strpos($this->pattern, 'MMMM')))
+ return 'MMMM';
+ if(is_int(strpos($this->pattern, 'MMM')))
+ return 'MMM';
+ if(is_int(strpos($this->pattern, 'MM')))
+ return 'MM';
+ if(is_int(strpos($this->pattern, 'M')))
+ return 'M';
+ return false;
+ }
+
+ public function getDayPattern()
+ {
+ if(is_int(strpos($this->pattern, 'dd')))
+ return 'dd';
+ if(is_int(strpos($this->pattern, 'd')))
+ return 'd';
+ return false;
+ }
+
+ public function getYearPattern()
+ {
+ if(is_int(strpos($this->pattern, 'yyyy')))
+ return 'yyyy';
+ if(is_int(strpos($this->pattern, 'yy')))
+ return 'yy';
+ return false;
+ }
+
+ public function getDayMonthYearOrdering()
+ {
+ $ordering = array();
+ if(is_int($day= strpos($this->pattern, 'd')))
+ $ordering['day'] = $day;
+ if(is_int($month= strpos($this->pattern, 'M')))
+ $ordering['month'] = $month;
+ if(is_int($year= strpos($this->pattern, 'yy')))
+ $ordering['year'] = $year;
+ asort($ordering);
+ return array_keys($ordering);
+ }
+
+ /**
+ * Gets the time stamp from string or integer.
+ * @param string|int date to parse
+ * @return int parsed date time stamp
+ */
+ private function getDate($value)
+ {
+ if(is_int($value))
+ return @getdate($value);
+ $date = @strtotime($value);
+ if($date < 0)
+ throw new TInvalidDataValueException('invalid_date', $value);
+ return @getdate($date);
+ }
+
+ /**
+ * @return boolean true if the given value matches with the date pattern.
+ */
+ public function isValidDate($value)
+ {
+ return !is_null($this->parse($value, false));
+ }
+
+ /**
+ * Parse the string according to the pattern.
+ * @param string date string to parse
+ * @return int date time stamp
+ * @throws TInvalidDataValueException if date string is malformed.
+ */
+ public function parse($value,$defaultToCurrentTime=true)
+ {
+ if(!is_string($value))
+ throw new TInvalidDataValueException('date_to_parse_must_be_string', $value);
+
+ if(empty($this->pattern)) return time();
+
+ $date = $this->getDate(time());
+
+ if($this->length(trim($value)) < 1)
+ return $defaultToCurrentTime ? $date : null;
+
+ $pattern = $this->pattern;
+
+ $i_val = 0;
+ $i_format = 0;
+ $pattern_length = $this->length($pattern);
+ $c = '';
+ $token='';
+ $x=null; $y=null;
+
+
+ if($defaultToCurrentTime)
+ {
+ $year = "{$date['year']}";
+ $month = $date['mon'];
+ $day = $date['mday'];
+ }
+ else
+ {
+ $year = null;
+ $month = null;
+ $day = null;
+ }
+
+ while ($i_format < $pattern_length)
+ {
+ $c = $this->charAt($pattern,$i_format);
+ $token='';
+ while ($this->charEqual($pattern, $i_format, $c)
+ && ($i_format < $pattern_length))
+ {
+ $token .= $this->charAt($pattern, $i_format++);
+ }
+
+ if ($token=='yyyy' || $token=='yy' || $token=='y')
+ {
+ if ($token=='yyyy') { $x=4;$y=4; }
+ if ($token=='yy') { $x=2;$y=2; }
+ if ($token=='y') { $x=2;$y=4; }
+ $year = $this->getInteger($value,$i_val,$x,$y);
+ if(is_null($year))
+ throw new TInvalidDataValueException('Invalid year', $value);
+ $i_val += strlen($year);
+ if(strlen($year) == 2)
+ {
+ $iYear = intval($year);
+ if($iYear > 70)
+ $year = $iYear + 1900;
+ else
+ $year = $iYear + 2000;
+ }
+ $year = intval($year);
+ }
+ elseif($token=='MM' || $token=='M')
+ {
+ $month=$this->getInteger($value,$i_val,
+ $this->length($token),2);
+ $iMonth = intval($month);
+ if(is_null($month) || $iMonth < 1 || $iMonth > 12 )
+ throw new TInvalidDataValueException('Invalid month', $value);
+ $i_val += strlen($month);
+ $month = $iMonth;
+ }
+ elseif ($token=='dd' || $token=='d')
+ {
+ $day = $this->getInteger($value,$i_val,
+ $this->length($token), 2);
+ $iDay = intval($day);
+ if(is_null($day) || $iDay < 1 || $iDay >31)
+ throw new TInvalidDataValueException('Invalid day', $value);
+ $i_val += strlen($day);
+ $day = $iDay;
+ }
+ else
+ {
+ if($this->substring($value, $i_val, $this->length($token)) != $token)
+ throw new TInvalidDataValueException("Subpattern '{$this->pattern}' mismatch", $value);
+ else
+ $i_val += $this->length($token);
+ }
+ }
+ if ($i_val != $this->length($value))
+ throw new TInvalidDataValueException("Pattern '{$this->pattern}' mismatch", $value);
+
+ if(!$defaultToCurrentTime && (is_null($month) || is_null($day) || is_null($year)))
+ return null;
+ else
+ return $this->getDate(@mktime(0, 0, 0, $month, $day, $year));
+ }
+
+ /**
+ * Calculate the length of a string, may be consider iconv_strlen?
+ */
+ private function length($string)
+ {
+ //use iconv_strlen or just strlen?
+ return strlen($string);
+ }
+
+ /**
+ * Get the char at a position.
+ */
+ private function charAt($string, $pos)
+ {
+ return $this->substring($string, $pos, 1);
+ }
+
+ /**
+ * Gets a portion of a string, uses iconv_substr.
+ */
+ private function substring($string, $start, $length)
+ {
+ return iconv_substr($string, $start, $length);
+ }
+
+ /**
+ * Returns true if char at position equals a particular char.
+ */
+ private function charEqual($string, $pos, $char)
+ {
+ return $this->charAt($string, $pos) == $char;
+ }
+
+ /**
+ * Gets integer from part of a string, allows integers of any length.
+ * @param string string to retrieve the integer from.
+ * @param int starting position
+ * @param int minimum integer length
+ * @param int maximum integer length
+ * @return string integer portition of the string, null otherwise
+ */
+ private function getInteger($str,$i,$minlength,$maxlength)
+ {
+ //match for digits backwards
+ for ($x = $maxlength; $x >= $minlength; $x--)
+ {
+ $token= $this->substring($str, $i,$x);
+ if ($this->length($token) < $minlength)
+ return null;
+ if (preg_match('/^\d+$/', $token))
+ return $token;
+ }
+ return null;
+ }
+}
+
+?>
\ No newline at end of file
--
cgit v1.2.3