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📁 ..	-	2025-05-25 12:37
📁 MARC	-	2025-05-25 12:37
📄 MARC.php <?php /* vim: set expandtab shiftwidth=4 tabstop=4 softtabstop=4 foldmethod=marker: / /* * Parser for MARC records * * This package is based on the PHP MARC package, originally called "php-marc", * that is part of the Emilda Project (http://www.emilda.org). Christoffer * Landtman generously agreed to make the "php-marc" code available under the * GNU LGPL so it could be used as the basis of this PEAR package. * * PHP version 5 * * LICENSE: This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * @category File_Formats * @package File_MARC * @author Christoffer Landtman <landtman@realnode.com> * @author Dan Scott <dscott@laurentian.ca> * @copyright 2003-2010 Oy Realnode Ab, Dan Scott * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @version CVS: $Id$ * @link http://pear.php.net/package/File_MARC * @example read.php Retrieve specific fields and subfields from a record * @example subfields.php Create new subfields and add them in specific order * @example marc_yaz.php Pretty print a MARC record retrieved through the PECL yaz extension / require_once 'PEAR/Exception.php'; require_once 'File/MARCBASE.php'; require_once 'File/MARC/Record.php'; require_once 'File/MARC/Field.php'; require_once 'File/MARC/Control_Field.php'; require_once 'File/MARC/Data_Field.php'; require_once 'File/MARC/Subfield.php'; require_once 'File/MARC/Exception.php'; require_once 'File/MARC/List.php'; // {{{ class File_MARC /* * The main File_MARC class enables you to return File_MARC_Record * objects from a stream or string. * * @category File_Formats * @package File_MARC * @author Christoffer Landtman <landtman@realnode.com> * @author Dan Scott <dscott@laurentian.ca> * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @link http://pear.php.net/package/File_MARC / class File_MARC extends File_MARCBASE { // {{{ constants /* * MARC records retrieved from a file / const SOURCE_FILE = 1; /* * MARC records retrieved from a binary string / const SOURCE_STRING = 2; /* * Hexadecimal value for Subfield indicator / const SUBFIELD_INDICATOR = "\x1F"; /* * Hexadecimal value for End of Field / const END_OF_FIELD = "\x1E"; /* * Hexadecimal value for End of Record / const END_OF_RECORD = "\x1D"; /* * Length of the Directory / const DIRECTORY_ENTRY_LEN = 12; /* * Length of the Leader / const LEADER_LEN = 24; /* * Maximum record length / const MAX_RECORD_LENGTH = 99999; // }}} // {{{ properties /* * Source containing raw records * * @var resource / protected $source; /* * Source type (SOURCE_FILE or SOURCE_STRING) * * @var int / protected $type; /* * XMLWriter for writing collections * * @var XMLWriter / protected $xmlwriter; // }}} // {{{ Constructor: function __construct() /* * Read in MARC records * * This function reads in MARC record files or strings that * contain one or more MARC records. * * <code> * <?php * // Retrieve MARC records from a file * $journals = new File_MARC('journals.mrc', SOURCE_FILE); * * // Retrieve MARC records from a string (e.g. Z39 query results) * $monographs = new File_MARC($raw_marc, SOURCE_STRING); * ?> * </code> * * @param string $source Name of the file, or a raw MARC string * @param int $type Source of the input, either SOURCE_FILE or SOURCE_STRING * @param string $record_class Record class, defaults to File_MARC_Record / function __construct($source, $type = self::SOURCE_FILE, $record_class = null) { parent::__construct($source, $type, $record_class); switch ($type) { case self::SOURCE_FILE: $this->type = self::SOURCE_FILE; $this->source = fopen($source, 'rb'); if (!$this->source) { $errorMessage = File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_FILE], array('filename' => $source)); throw new File_MARC_Exception($errorMessage, File_MARC_Exception::ERROR_INVALID_FILE); } break; case self::SOURCE_STRING: $this->type = self::SOURCE_STRING; $this->source = explode(File_MARC::END_OF_RECORD, $source); break; default: throw new File_MARC_Exception(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_SOURCE], File_MARC_Exception::ERROR_INVALID_SOURCE); } } // }}} // {{{ nextRaw() /* * Return the next raw MARC record * * Returns the next raw MARC record, unless all records already have * been read. * * @return string Either a raw record or false / function nextRaw() { if ($this->type == self::SOURCE_FILE) { $record = stream_get_line($this->source, File_MARC::MAX_RECORD_LENGTH, File_MARC::END_OF_RECORD); // Remove illegal stuff that sometimes occurs between records $record = preg_replace('/^[\\x0a\\x0d\\x00]+/', "", $record); } elseif ($this->type == self::SOURCE_STRING) { $record = array_shift($this->source); } // Exit if we are at the end of the file if (!$record) { return false; } // Append the end of record we lost during stream_get_line() or explode() $record .= File_MARC::END_OF_RECORD; return $record; } // }}} // {{{ next() /* * Return next {@link File_MARC_Record} object * * Decodes the next raw MARC record and returns the {@link File_MARC_Record} * object. * <code> * <?php * // Retrieve a set of MARC records from a file * $journals = new File_MARC('journals.mrc', SOURCE_FILE); * * // Iterate through the retrieved records * while ($record = $journals->next()) { * print $record; * print "\n"; * } * * ?> * </code> * * @return File_MARC_Record next record, or false if there are * no more records / function next() { $raw = $this->nextRaw(); if ($raw) { return $this->_decode($raw); } else { return false; } } // }}} // {{{ _decode() /* * Decode a given raw MARC record * * Port of Andy Lesters MARC::File::USMARC->decode() Perl function into PHP. * * @param string $text Raw MARC record * * @return File_MARC_Record Decoded File_MARC_Record object / private function _decode($text) { $marc = new $this->record_class($this); // fallback on the actual byte length $record_length = strlen($text); $matches = array(); if (preg_match("/^(\d{5})/", $text, $matches)) { // Store record length $record_length = $matches[1]; if ($record_length != strlen($text)) { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INCORRECT_LENGTH], array("record_length" => $record_length, "actual" => strlen($text)))); // Real beats declared byte length $record_length = strlen($text); } } else { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_NONNUMERIC_LENGTH], array("record_length" => substr($text, 0, 5)))); } if (substr($text, -1, 1) != File_MARC::END_OF_RECORD) throw new File_MARC_Exception(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_TERMINATOR], File_MARC_Exception::ERROR_INVALID_TERMINATOR); // Store leader $marc->setLeader(substr($text, 0, File_MARC::LEADER_LEN)); // bytes 12 - 16 of leader give offset to the body of the record $data_start = 0 + substr($text, 12, 5); // immediately after the leader comes the directory (no separator) $dir = substr($text, File_MARC::LEADER_LEN, $data_start - File_MARC::LEADER_LEN - 1); // -1 to allow for \x1e at end of directory // character after the directory must be \x1e if (substr($text, $data_start-1, 1) != File_MARC::END_OF_FIELD) { $marc->addWarning(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_NO_DIRECTORY]); } // All directory entries 12 bytes long, so length % 12 must be 0 if (strlen($dir) % File_MARC::DIRECTORY_ENTRY_LEN != 0) { $marc->addWarning(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_DIRECTORY_LENGTH]); } // go through all the fields $nfields = strlen($dir) / File_MARC::DIRECTORY_ENTRY_LEN; for ($n=0; $n<$nfields; $n++) { // As pack returns to key 1, leave place 0 in list empty list(, $tag) = unpack("A3", substr($dir, $nFile_MARC::DIRECTORY_ENTRY_LEN, File_MARC::DIRECTORY_ENTRY_LEN)); list(, $len) = unpack("A3/A4", substr($dir, $nFile_MARC::DIRECTORY_ENTRY_LEN, File_MARC::DIRECTORY_ENTRY_LEN)); list(, $offset) = unpack("A3/A4/A5", substr($dir, $nFile_MARC::DIRECTORY_ENTRY_LEN, File_MARC::DIRECTORY_ENTRY_LEN)); // Check directory validity if (!preg_match("/^[0-9A-Za-z]{3}$/", $tag)) { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_DIRECTORY_TAG], array("tag" => $tag))); } if (!preg_match("/^\d{4}$/", $len)) { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_DIRECTORY_TAG_LENGTH], array("tag" => $tag, "len" => $len))); } if (!preg_match("/^\d{5}$/", $offset)) { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_DIRECTORY_OFFSET], array("tag" => $tag, "offset" => $offset))); } if ($offset + $len > $record_length) { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_DIRECTORY], array("tag" => $tag))); } $tag_data = substr($text, $data_start + $offset, $len); if (substr($tag_data, -1, 1) == File_MARC::END_OF_FIELD) { /* get rid of the end-of-tag character */ $tag_data = substr($tag_data, 0, -1); $len--; } else { $marc->addWarning(File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_FIELD_EOF], array("tag" => $tag))); } if (preg_match("/^\d+$/", $tag) and ($tag < 10)) { $marc->appendField(new File_MARC_Control_Field($tag, $tag_data)); } else { $subfields = explode(File_MARC::SUBFIELD_INDICATOR, $tag_data); $indicators = array_shift($subfields); if (strlen($indicators) != 2) { $errorMessage = File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_INDICATORS], array("tag" => $tag, "indicators" => $indicators)); $marc->addWarning($errorMessage); // Do the best with the indicators we've got if (strlen($indicators) == 1) { $ind1 = $indicators; $ind2 = " "; } else { list($ind1,$ind2) = array(" ", " "); } } else { $ind1 = substr($indicators, 0, 1); $ind2 = substr($indicators, 1, 1); } // Split the subfield data into subfield name and data pairs $subfield_data = array(); foreach ($subfields as $subfield) { if (strlen($subfield) > 0) { $subfield_data[] = new File_MARC_Subfield(substr($subfield, 0, 1), substr($subfield, 1)); } else { $errorMessage = File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_EMPTY_SUBFIELD], array("tag" => $tag)); $marc->addWarning($errorMessage); } } if (!isset($subfield_data)) { $errorMessage = File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_EMPTY_SUBFIELD], array("tag" => $tag)); $marc->addWarning($errorMessage); } // If the data is invalid, let's just ignore the one field try { $new_field = new File_MARC_Data_Field($tag, $subfield_data, $ind1, $ind2); $marc->appendField($new_field); } catch (Exception $e) { $marc->addWarning($e->getMessage()); } } } return $marc; } // }}} } // }}}	13.87 KB	2024-07-17 10:13
📄 MARCBASE.php <?php /* vim: set expandtab shiftwidth=4 tabstop=4 softtabstop=4 foldmethod=marker: / /* * Parser for MARC records * * This package is based on the PHP MARC package, originally called "php-marc", * that is part of the Emilda Project (http://www.emilda.org). Christoffer * Landtman generously agreed to make the "php-marc" code available under the * GNU LGPL so it could be used as the basis of this PEAR package. * * PHP version 5 * * LICENSE: This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * @category File_Formats * @package File_MARC * @author Dan Scott <dscott@laurentian.ca> * @copyright 2007-2010 Dan Scott * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @version CVS: $Id: MARCXML.php 301727 2010-07-30 17:30:51Z dbs $ * @link http://pear.php.net/package/File_MARC * @example read.php Retrieve specific fields and subfields from a record * @example subfields.php Create new subfields and add them in specific order * @example marc_yaz.php Pretty print a MARC record retrieved through the PECL yaz extension / require_once 'File/MARC/Record.php'; // {{{ class File_MARCBASE /* * The main File_MARCBASE class provides common methods for File_MARC and * File_MARCXML - primarily for generating MARCXML output. * * @category File_Formats * @package File_MARC * @author Dan Scott <dscott@laurentian.ca> * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @link http://pear.php.net/package/File_MARC / class File_MARCBASE { /* * XMLWriter for writing collections * * @var XMLWriter / protected $xmlwriter; /* * Record class * * @var string / protected $record_class; // }}} // {{{ Constructor: function __construct() /* * Read in MARCXML records * * This function reads in files or strings that * contain one or more MARCXML records. * * <code> * <?php * // Retrieve MARC records from a file * $journals = new File_MARC('journals.mrc', SOURCE_FILE); * * // Retrieve MARC records from a string (e.g. Z39 query results) * $monographs = new File_MARC($raw_marc, SOURCE_STRING); * ?> * </code> * * @param string $source Name of the file, or a raw MARC string * @param int $type Source of the input, either SOURCE_FILE or SOURCE_STRING * @param string $record_class Record class, defaults to File_MARC_Record / function __construct($source, $type, $record_class) { $this->xmlwriter = new XMLWriter(); $this->xmlwriter->openMemory(); $this->xmlwriter->startDocument('1.0', 'UTF-8'); $this->record_class = $record_class ?: File_MARC_Record::class; } // }}} // {{{ toXMLHeader() /* * Initializes the MARCXML output of a record or collection of records * * This method produces an XML representation of a MARC record that * attempts to adhere to the MARCXML standard documented at * http://www.loc.gov/standards/marcxml/ * * @return bool true if successful / function toXMLHeader() { $this->xmlwriter->startElement("collection"); $this->xmlwriter->writeAttribute("xmlns", "http://www.loc.gov/MARC21/slim"); return true; } // }}} // {{{ getXMLWriter() /* * Returns the XMLWriter object * * This method produces an XML representation of a MARC record that * attempts to adhere to the MARCXML standard documented at * http://www.loc.gov/standards/marcxml/ * * @return XMLWriter XMLWriter instance / function getXMLWriter() { return $this->xmlwriter; } // }}} // {{{ toXMLFooter() /* * Returns the MARCXML collection footer * * This method produces an XML representation of a MARC record that * attempts to adhere to the MARCXML standard documented at * http://www.loc.gov/standards/marcxml/ * * @return string representation of MARC record in MARCXML format */ function toXMLFooter() { $this->xmlwriter->endElement(); // end collection $this->xmlwriter->endDocument(); return $this->xmlwriter->outputMemory(); } // }}} } // }}}	4.91 KB	2024-07-17 10:13
📄 MARCXML.php <?php /* vim: set expandtab shiftwidth=4 tabstop=4 softtabstop=4 foldmethod=marker: / /* * Parser for MARC records * * This package is based on the PHP MARC package, originally called "php-marc", * that is part of the Emilda Project (http://www.emilda.org). Christoffer * Landtman generously agreed to make the "php-marc" code available under the * GNU LGPL so it could be used as the basis of this PEAR package. * * PHP version 5 * * LICENSE: This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * @category File_Formats * @package File_MARC * @author Dan Scott <dscott@laurentian.ca> * @copyright 2007-2010 Dan Scott * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @version CVS: $Id$ * @link http://pear.php.net/package/File_MARC * @example read.php Retrieve specific fields and subfields from a record * @example subfields.php Create new subfields and add them in specific order * @example marc_yaz.php Pretty print a MARC record retrieved through the PECL yaz extension / require_once 'PEAR/Exception.php'; require_once 'File/MARCBASE.php'; require_once 'File/MARC.php'; require_once 'File/MARC/Record.php'; require_once 'File/MARC/Field.php'; require_once 'File/MARC/Control_Field.php'; require_once 'File/MARC/Data_Field.php'; require_once 'File/MARC/Subfield.php'; require_once 'File/MARC/Exception.php'; require_once 'File/MARC/List.php'; // {{{ class File_MARCXML /* * The main File_MARCXML class enables you to return File_MARC_Record * objects from an XML stream or string. * * @category File_Formats * @package File_MARC * @author Dan Scott <dscott@laurentian.ca> * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 * @link http://pear.php.net/package/File_MARC / class File_MARCXML extends File_MARCBASE { // {{{ constants /* * MARC records retrieved from a file / const SOURCE_FILE = 1; /* * MARC records retrieved from a binary string / const SOURCE_STRING = 2; // }}} // {{{ properties /* * Source containing raw records * * @var resource / protected $source; /* * Source type (SOURCE_FILE or SOURCE_STRING) * * @var int / protected $type; /* * Counter for MARCXML records in a collection * * @var int / protected $counter; /* * XMLWriter for writing collections * * @var XMLWriter / protected $xmlwriter; // }}} // {{{ Constructor: function __construct() /* * Read in MARCXML records * * This function reads in files or strings that * contain one or more MARCXML records. * * <code> * <?php * // Retrieve MARC records from a file * $journals = new File_MARC('journals.mrc', SOURCE_FILE); * * // Retrieve MARC records from a string (e.g. Z39 query results) * $monographs = new File_MARC($raw_marc, SOURCE_STRING); * * // Retrieve MARCXML records from a string with a namespace URL * $records = new File_MARCXML($xml_data, File_MARC::SOURCE_STRING,"http://www.loc.gov/MARC21/slim"); * * // Retrieve MARCXML records from a file with a namespace prefix * $records = new File_MARCXML($xml_data, File_MARC::SOURCE_FILE,"marc",true); * ?> * </code> * * @param string $source Name of the file, or a raw MARC string * @param int $type Source of the input, either SOURCE_FILE or SOURCE_STRING * @param string $ns URI or prefix of the namespace * @param bool $is_prefix TRUE if $ns is a prefix, FALSE if it's a URI; defaults to FALSE * @param string $record_class Record class, defaults to File_MARC_Record / function __construct($source, $type = self::SOURCE_FILE, $ns = "", $is_prefix = false, $record_class = null) { parent::__construct($source, $type, $record_class); $this->counter = 0; switch ($type) { case self::SOURCE_FILE: $this->type = self::SOURCE_FILE; $this->source = simplexml_load_file($source, "SimpleXMLElement", 0, $ns, $is_prefix); break; case self::SOURCE_STRING: $this->type = self::SOURCE_STRING; $this->source = simplexml_load_string($source, "SimpleXMLElement", 0, $ns, $is_prefix); break; default: throw new File_MARC_Exception(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_SOURCE], File_MARC_Exception::ERROR_INVALID_SOURCE); } if (!$this->source) { $errorMessage = File_MARC_Exception::formatError(File_MARC_Exception::$messages[File_MARC_Exception::ERROR_INVALID_FILE], array('filename' => $source)); throw new File_MARC_Exception($errorMessage, File_MARC_Exception::ERROR_INVALID_FILE); } } // }}} // {{{ next() /* * Return next {@link File_MARC_Record} object * * Decodes the next MARCXML record and returns the {@link File_MARC_Record} * object. * <code> * <?php * // Retrieve a set of MARCXML records from a file * $journals = new File_MARCXML('journals.xml', SOURCE_FILE); * * // Iterate through the retrieved records * while ($record = $journals->next()) { * print $record; * print "\n"; * } * * ?> * </code> * * @return File_MARC_Record next record, or false if there are * no more records / function next() { if (isset($this->source->record[$this->counter])) { $record = $this->source->record[$this->counter++]; } elseif ($this->source->getName() == "record" && $this->counter == 0) { $record = $this->source; $this->counter++; } else { return false; } if ($record) { return $this->_decode($record); } else { return false; } } // }}} // {{{ _decode() /* * Decode a given MARCXML record * * @param string $text MARCXML record element * * @return File_MARC_Record Decoded File_MARC_Record object */ private function _decode($text) { $marc = new $this->record_class($this); // Store leader $marc->setLeader($text->leader); // go through all the control fields foreach ($text->controlfield as $controlfield) { $controlfieldattributes = $controlfield->attributes(); $marc->appendField(new File_MARC_Control_Field((string)$controlfieldattributes['tag'], $controlfield)); } // go through all the data fields foreach ($text->datafield as $datafield) { $datafieldattributes = $datafield->attributes(); $subfield_data = array(); foreach ($datafield->subfield as $subfield) { $subfieldattributes = $subfield->attributes(); $subfield_data[] = new File_MARC_Subfield((string)$subfieldattributes['code'], $subfield); } // If the data is invalid, let's just ignore the one field try { $new_field = new File_MARC_Data_Field((string)$datafieldattributes['tag'], $subfield_data, $datafieldattributes['ind1'], $datafieldattributes['ind2']); $marc->appendField($new_field); } catch (Exception $e) { $marc->addWarning($e->getMessage()); } } return $marc; } // }}} } // }}}	8.11 KB	2024-07-17 10:13

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