/**
* parse the mdata
*
* @param string $data data
* @param bool $parse_body parse the body
*
* @throws CHL7v2Exception
*
* @return void
*/
function parse($data, $parse_body = true)
{
try {
self::isWellFormed($data, $this->strict_segment_terminator);
} catch (CHL7v2Exception $e) {
$this->error($e->getMessage(), $e->extraData);
//return false;
}
// remove all chars before H
$h_pos = strpos($data, self::$header_segment_name);
if ($h_pos === false) {
throw new CHL7v2Exception(CHL7v2Exception::SEGMENT_INVALID_SYNTAX, $data);
}
$data = substr($data, $h_pos);
$data = self::fixRawER7($data, $this->strict_segment_terminator);
// handle "A" segments
$field_sep = preg_quote($this->fieldSeparator);
$patt = "/[\r\n]+A{$field_sep}([^\r\n]+)/s";
$data = preg_replace($patt, "\\1", $data);
// remove "C" segments
$patt = "/[\r\n]+C{$field_sep}([^\r\n]+)/s";
$data = preg_replace($patt, "", $data);
parent::parse($data);
$message = $this->data;
// 2 to 5
if (!isset($message[5])) {
throw new CHL7v2Exception(CHL7v2Exception::SEGMENT_INVALID_SYNTAX, $message);
}
$this->fieldSeparator = $message[1];
$nextDelimiter = strpos($message, $this->fieldSeparator, 2);
if ($nextDelimiter > 4) {
// usually ^
$this->componentSeparator = $message[2];
}
if ($nextDelimiter > 3) {
// usually ~
$this->repetitionSeparator = $message[3];
}
if ($nextDelimiter > 4) {
// usually \
$this->escapeCharacter = $message[4];
}
if ($nextDelimiter > 5) {
// usually &
$this->subcomponentSeparator = $message[5];
}
// replace the special case of ^~& with ^~\&
if ("^~&|" == substr($message, 2, 4)) {
$this->escapeCharacter = "\\";
$this->subcomponentSeparator = "&";
$this->repetitionSeparator = "~";
$this->componentSeparator = "^";
}
$this->initEscapeSequences();
$this->lines = CHL7v2::split($this->segmentTerminator, $this->data);
// we extract the first line info "by hand"
$first_line = CHL7v2::split($this->fieldSeparator, reset($this->lines));
if (!isset($first_line[12])) {
throw new CHL7v2Exception(CHL7v2Exception::SEGMENT_INVALID_SYNTAX, $message);
}
// version
$this->parseRawVersion($first_line[12]);
// message type
$message_type = explode($this->componentSeparator, $first_line[6]);
$this->name = $message_type[0];
$this->event_name = $message_type[0];
if (!($spec = $this->getSpecs())) {
throw new CHL7v2Exception(CHL7v2Exception::UNKNOWN_MSG_CODE);
}
$this->description = $spec->queryTextNode("description");
$this->readHeader();
// type liaison
//$type_liaison
if ($parse_body) {
$this->readSegments();
}
}
function parse($data, $parse_body = true, CInteropActor $actor = null)
{
$this->actor = $actor;
try {
self::isWellFormed($data, $this->strict_segment_terminator);
} catch (CHL7v2Exception $e) {
$this->error($e->getMessage(), $e->extraData);
//return false;
}
// remove all chars before MSH
$msh_pos = strpos($data, self::$header_segment_name);
if ($msh_pos === false) {
throw new CHL7v2Exception(CHL7v2Exception::SEGMENT_INVALID_SYNTAX, $data);
}
$data = substr($data, $msh_pos);
$data = self::fixRawER7($data, $this->strict_segment_terminator);
parent::parse($data);
$message = $this->data;
// 4 to 7
if (!isset($message[7])) {
throw new CHL7v2Exception(CHL7v2Exception::SEGMENT_INVALID_SYNTAX, $message);
}
$this->fieldSeparator = $message[3];
$nextDelimiter = strpos($message, $this->fieldSeparator, 4);
if ($nextDelimiter > 4) {
// usually ^
$this->componentSeparator = $message[4];
}
if ($nextDelimiter > 5) {
// usually ~
$this->repetitionSeparator = $message[5];
}
if ($nextDelimiter > 6) {
// usually \
$this->escapeCharacter = $message[6];
}
if ($nextDelimiter > 7) {
// usually &
$this->subcomponentSeparator = $message[7];
}
// replace the special case of ^~& with ^~\&
if ("^~&|" == substr($message, 4, 4)) {
$this->escapeCharacter = "\\";
$this->subcomponentSeparator = "&";
$this->repetitionSeparator = "~";
$this->componentSeparator = "^";
}
$this->initEscapeSequences();
$this->lines = CHL7v2::split($this->segmentTerminator, $this->data);
// we extract the first line info "by hand"
$first_line = CHL7v2::split($this->fieldSeparator, reset($this->lines));
if (!isset($first_line[11])) {
throw new CHL7v2Exception(CHL7v2Exception::SEGMENT_INVALID_SYNTAX, $message);
}
// version
if (array_key_exists(16, $first_line)) {
$this->parseRawVersion($first_line[11], $first_line[16]);
} else {
$this->parseRawVersion($first_line[11]);
}
// message type
$message_type = explode($this->componentSeparator, $first_line[8]);
if ($message_type[0]) {
$this->name = $message_type[0];
if ($this->name == "ACK") {
$this->event_name = $message_type[0];
} else {
if (isset($message_type[2]) && $message_type[2] && !preg_match("/^[A-Z]{3}_[A-Z\\d]{2}\\d\$/", $message_type[2])) {
throw new CHL7v2Exception(CHL7v2Exception::WRONG_MESSAGE_TYPE, $message_type[2]);
}
if (strlen($message_type[0]) != 3 || strlen($message_type[1]) != 3) {
$msg = $message_type[0] . $this->componentSeparator . $message_type[1];
throw new CHL7v2Exception(CHL7v2Exception::WRONG_MESSAGE_TYPE, $msg);
}
$this->event_name = $message_type[0] . $message_type[1];
}
} else {
$this->event_name = preg_replace("/[^A-Z0-9]/", "", $message_type[2]);
$this->name = substr($message_type[2], 0, 3);
}
if (!($spec = $this->getSpecs())) {
throw new CHL7v2Exception(CHL7v2Exception::UNKNOWN_MSG_CODE);
}
$this->description = $spec->queryTextNode("description");
$this->readHeader();
if ($parse_body) {
$this->readSegments();
}
}
