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[PHPiCalendar-Commits] phpicalendar/lib/HTTP/CalDAV/Tools ICalendarParser.php,1.1,1.2
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From: <ja...@us...> - 2006-04-22 22:50:29
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Update of /cvsroot/phpicalendar/phpicalendar/lib/HTTP/CalDAV/Tools In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27088/lib/HTTP/CalDAV/Tools Modified Files: ICalendarParser.php Log Message: * More work on iCalendar parser * Current offsets support is non-sensical - hopefully something intelligent will emerge Index: ICalendarParser.php =================================================================== RCS file: /cvsroot/phpicalendar/phpicalendar/lib/HTTP/CalDAV/Tools/ICalendarParser.php,v retrieving revision 1.1 retrieving revision 1.2 diff -C2 -d -r1.1 -r1.2 *** ICalendarParser.php 18 Apr 2006 03:22:12 -0000 1.1 --- ICalendarParser.php 22 Apr 2006 22:50:24 -0000 1.2 *************** *** 43,46 **** --- 43,54 ---- { /** + * Input stream handle + * + * @var resource + * @access private + */ + var $_handle; + + /** * Success state flag * *************** *** 67,70 **** --- 75,119 ---- /** + * Component stack for parsing nested components + * + * @var array + * @access private + */ + var $_compStack = array(); + + /** + * Begin offset stack for tracking begin offsets of nested components + * + * @var array + * @access private + */ + var $_beginOffsetStack = array(); + + /** + * Offsets stack for parsing within specific ranges + * + * @var array + * @access private + */ + var $_offsetStack = array(); + + /** + * Value stack for parsing only specific components & properties + * + * @var array + * @access private + */ + var $_valueStack = array(); + + /** + * Filter stack for parsing only components & properties which match + * specific filters + * + * @var array + * @access private + */ + var $_filterStack = array(); + + /** * Constructor * *************** *** 72,183 **** * @access public */ ! function ICalendarParser($handle, $beginOffset=null, $endOffset=null, ! $value=null, $filters=null) { ! $comps = array(); ! $beginOffsets = array(); ! $compValues = array($value); ! $compFilters = array($filters); $this->success = true; ! while (($offset = ftell($handle)) !== false && ! ($line = fgets($handle, 4096)) !== false) { ! if (isset($endOffset) && $offset > $endOffset) { ! return; ! } ! ! $line = explode(':', trim($line)); ! if ($line[0] == 'END') { ! if ($line[1] != $comps[count($comps) - 1]->name) { ! $this->success = false; ! return; ! } ! if (is_array($compFilters[count($compFilters) - 1]['filters'])) { ! foreach ($compFilters[count($compFilters) - 1]['filters'] as $filter) { ! if ($filter['name'] == 'time-range') { ! if ($filter['value']['start'] > $comps[count($comps) - 1]->properties['DTEND'][0]->value || $filter['value']['end'] < $comps[count($comps) - 1]->properties['DTSTART'][0]->value) { ! array_pop($compValues); ! array_pop($compFilters); ! continue; } } } - } - if (count($comps) > 1 && - !$comps[count($comps) - 2]->add_component($comps[count( - $comps) - 1])) { - $this->success = false; return; } ! if (($offset = ftell($handle)) === false) { ! $this->success = false; ! return; ! } ! $this->comps[] = array_pop($comps); ! $this->offsets[] = array(array_pop($beginOffsets), $offset); ! array_pop($compValues); ! array_pop($compFilters); continue; } ! if ($line[0] == 'BEGIN') { ! $compName = $line[1]; ! if (is_array($compValues[count($compValues) - 1]['comps']) && ! !isset($compValues[count($compValues) - 1]['comps'][$compName])) { ! while (($line = fgets($handle, 4096)) !== false) { ! if (trim($line) == "END:$compName") { ! continue (2); ! } ! } ! $this->success = false; return; } ! $className = 'iCalendar_' . ltrim(strtolower($compName), 'v'); ! if ($line[1] == 'VCALENDAR') { ! $className = 'iCalendar'; ! } ! if (!class_exists($className)) { ! while (($line = fgets($handle, 4096)) !== false) { ! if (trim($line) == "END:$compName") { ! continue (2); ! } ! } ! $this->success = false; return; } - - $comps[] = new $className; - $beginOffsets[] = $offset; - $compValues[] = $compValues[count($compValues) - 1]['comps'][$compName]; - $compFilters[] = $compFilters[count($compFilters) - 1]['comps'][$compName]; - continue; } ! $line[0] = explode(';=', $line[0]); ! $propName = array_shift($line[0]); ! if (is_array($compValues[count($compValues) - 1]['props']) && ! !in_array($propName, ! $compValues[count($compValues) - 1]['props'])) { ! continue; ! } ! $params = array(); ! while (!empty($line[0])) { ! $params[array_shift($line[0])] = array_shift($line[0]); } - $comps[count($comps) - 1]->add_property($propName, $line[1], $params); } ! if (!feof($handle)) { $this->success = false; } } } --- 121,265 ---- * @access public */ ! function ICalendarParser($handle, $offsets=null, $value=null, $filters=null) { ! $this->_handle = $handle; $this->success = true; ! $this->_offsetStack[] = $offsets; ! $this->_valueStack[] = $value; ! $this->_filterStack[] = $filters; ! while ($this->success && ! ($offset = ftell($this->_handle)) !== false && ! ($line = fgets($this->_handle, 4096)) !== false) { ! if (is_array($this->_offsetStack[count($this->_offsetStack) - 1]['offsets'])) { ! if ($offset > $this->_offsetStack[count($this->_offsetStack) - 1]['offsets'][0][1]) { ! if (array_shift($this->_offsetStack[count($this->_offsetStack) - 1]['offsets']) !== null) { ! if (fseek($this->_offsetStack[count($this->_offsetStack) - 1]['offsets'][0][0])) { ! $this->success = false; ! return; ! } ! continue; ! } ! if (!empty($this->_compStack)) { ! $name = $this->_compStack[count($this->_compStack) - 1]->name; ! while (($line = fgets($this->_handle, 4096)) !== false) { ! if (trim($line) == "END:$name") { ! return; } } + + $this->_endComp($name); + continue; } return; } + } ! $line = explode(':', trim($line)); ! if ($line[0] == 'BEGIN') { ! $this->_beginComp($line[1]); continue; } ! if ($line[0] == 'END') { ! $this->_endComp($line[1]); ! continue; ! } ! $line[0] = explode(';=', $line[0]); ! $name = array_shift($line[0]); ! if (is_array($this->_valueStack[count($this->_valueStack) - 1]['props']) && !in_array($name, $this->_valueStack[count($this->_valueStack) - 1]['props'])) { ! continue; ! } ! ! $params = array(); ! while (!empty($line[0])) { ! $params[array_shift($line[0])] = array_shift($line[0]); ! } ! $this->_compStack[count($this->_compStack) - 1]->add_property($name, $line[1], $params); ! } ! ! if (!feof($this->_handle)) { ! $this->success = false; ! } ! } ! ! function _beginComp($name) ! { ! if (is_array($this->_valueStack[count($this->_valueStack) - 1]['comps']) && ! !isset($this->_valueStack[count($this->_valueStack) - 1]['comps'][$name])) { ! while (($line = fgets($this->_handle, 4096)) !== false) { ! if (trim($line) == "END:$name") { return; } + } ! $this->success = false; ! return; ! } ! $class = 'iCalendar_' . ltrim(strtolower($name), 'v'); ! if ($name == 'VCALENDAR') { ! $class = 'iCalendar'; ! } ! if (!class_exists($class)) { ! while (($line = fgets($this->_handle, 4096)) !== false) { ! if (trim($line) == "END:$name") { return; } } ! $this->success = false; ! return; ! } ! $this->_compStack[] = new $class; ! $this->_beginOffsetStack[] = $offset; ! $this->_offsetStack[] = $this->_offsetStack[count($this->_offsetStack) - 1]['comps'][$name]; ! $this->_valueStack[] = $this->_valueStack[count($this->_valueStack) - 1]['comps'][$name]; ! $this->_filterStack[] = $this->_filterStack[count($this->_filterStack) - 1]['comps'][$name]; ! } ! ! function _endComp($name) ! { ! if ($name != $this->_compStack[count($this->_compStack) - 1]->name) { ! $this->success = false; ! return; ! } ! ! if (is_array($this->_filterStack[count($this->_filterStack) - 1]['filters'])) { ! foreach ($this->_filterStack[count($this->_filterStack) - 1]['filters'] as $filter) { ! if ($filter['name'] == 'time-range') { ! if ($filter['value']['start'] > $this->_compStack[count($this->_compStack) - 1]->properties['DTEND'][0]->value || $filter['value']['end'] < $this->_compStack[count($this->_compStack) - 1]->properties['DTSTART'][0]->value) { ! array_pop($this->_compStack); ! array_pop($this->_beginOffsetStack); ! array_pop($this->_offsetStack); ! array_pop($this->_valueStack); ! array_pop($this->_filterStack); ! return; ! } ! } } } ! if (count($this->_compStack) > 1 && !$this->_compStack[count($this->_compStack) - 2]->add_component($this->_compStack[count($this->_compStack) - 1])) { ! $this->success = false; ! return; ! } ! ! if (($offset = ftell($this->_handle)) === false) { $this->success = false; + return; } + + $this->comps[] = array_pop($this->_compStack); + $this->offsets[] = array(array_pop($this->_beginOffsetStack), $offset); + array_pop($this->_offsetStack); + array_pop($this->_valueStack); + array_pop($this->_filterStack); } } |
