1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2010 Index Data.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Index Data nor the names of its contributors
13 * may be used to endorse or promote products derived from this
14 * software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * \brief MARC conversion
36 #include <yaz/yconfig.h>
38 #include <yaz/wrbuf.h>
41 #include <yaz/xmltypes.h>
42 #include <yaz/z-opac.h>
46 /** \brief a yaz_marc_t handle (private content) */
47 typedef struct yaz_marc_t_ *yaz_marc_t;
49 /** \brief construct yaz_marc_t handle */
50 YAZ_EXPORT yaz_marc_t yaz_marc_create(void);
52 /** \brief destroy yaz_marc_t handle */
53 YAZ_EXPORT void yaz_marc_destroy(yaz_marc_t mt);
55 /** \brief set XML mode YAZ_MARC_LINE, YAZ_MARCXML, YAZ_MARC_ISO2709 ..
59 This function ONLY affects yaz_marc_write_mode, yaz_marc_write_trailer.
61 YAZ_EXPORT void yaz_marc_xml(yaz_marc_t mt, int xmlmode);
63 /** \brief Output format: Line-format */
64 #define YAZ_MARC_LINE 0
65 /** \brief Output format: simplexml (no longer supported) */
66 #define YAZ_MARC_SIMPLEXML 1
67 /** \brief Output format: OAI-MARC (no longer supported) */
68 #define YAZ_MARC_OAIMARC 2
69 /** \brief Output format: MARCXML */
70 #define YAZ_MARC_MARCXML 3
71 /** \brief Output format: ISO2709 */
72 #define YAZ_MARC_ISO2709 4
73 /** \brief Output format: MarcXchange (ISO25577) */
74 #define YAZ_MARC_XCHANGE 5
75 /** \brief Output format: check only (no marc output) */
76 #define YAZ_MARC_CHECK 6
77 /** \brief Output format: Turbo MARC Index Data format (XML based) */
78 #define YAZ_MARC_TURBOMARC 7
80 /** \brief set iconv handle for character set conversion */
81 YAZ_EXPORT void yaz_marc_iconv(yaz_marc_t mt, yaz_iconv_t cd);
83 /** \brief supply iconv handle for character set conversion */
84 YAZ_EXPORT yaz_iconv_t yaz_marc_get_iconv(yaz_marc_t mt);
86 /** \brief set debug level
88 \param level level, where 0=lowest, 1 more debug, 2 even more
90 YAZ_EXPORT void yaz_marc_debug(yaz_marc_t mt, int level);
92 /** \brief decodes ISO2709 buffer using straight buffers
94 \param buf input buffer
95 \param bsize size of buffer or (-1 if "any size")
96 \param result result to be stored here
97 \param rsize size of result (memory "owned" by yaz_marc_mt handle)
99 Decodes MARC in buf of size bsize.
100 On success, result in *result with size *rsize.
101 Returns -1 on error, or size of input record (>0) if OK
103 YAZ_EXPORT int yaz_marc_decode_buf(yaz_marc_t mt, const char *buf, int bsize,
104 const char **result, size_t *rsize);
106 /** \brief decodes ISO2709/MARC buffer and stores result in WRBUF
108 \param buf input buffer
109 \param bsize size of buffer (-1 if "any size")
110 \param wrbuf WRBUF for output
112 Decodes MARC in buf of size bsize.
113 On success, result in wrbuf
114 Returns -1 on error, or size of input record (>0) if OK
116 YAZ_EXPORT int yaz_marc_decode_wrbuf(yaz_marc_t mt, const char *buf,
117 int bsize, WRBUF wrbuf);
119 YAZ_EXPORT void yaz_marc_subfield_str(yaz_marc_t mt, const char *s);
120 YAZ_EXPORT void yaz_marc_endline_str(yaz_marc_t mt, const char *s);
122 /** \brief modifies part of the MARC leader */
123 YAZ_EXPORT void yaz_marc_modify_leader(yaz_marc_t mt, size_t off,
126 /** \brief like atoi(3) except that it reads exactly len characters
127 \param buf buffer to read
128 \param len number of bytes to consider (being digits)
131 YAZ_EXPORT int atoi_n(const char *buf, int len);
133 /** \brief like atoi_n but checks for proper formatting
134 \param buf buffer to read values from
135 \param size size of buffer
136 \param val value of decimal number (if successful)
137 \retval 0 no value found (non-digits found)
138 \retval 1 value found and *val holds value
141 int atoi_n_check(const char *buf, int size, int *val);
143 /** \brief MARC control char: record separator (29 Dec, 1D Hex) */
144 #define ISO2709_RS 035
145 /** \brief MARC control char: field separator (30 Dec, 1E Hex) */
146 #define ISO2709_FS 036
147 /** \brief MARC control char: identifier-field separator (31 Dec, 1F Hex) */
148 #define ISO2709_IDFS 037
150 /** \brief read ISO2709/MARC record from buffer
152 \param buf ISO2709 buffer of size bsize
153 \param bsize size of buffer (-1 for unlimited size)
155 Parses ISO2709 record from supplied buffer
157 \retval >0 OK (length)
159 YAZ_EXPORT int yaz_marc_read_iso2709(yaz_marc_t mt,
160 const char *buf, int bsize);
162 /** \brief read MARC lineformat from stream
164 \param getbyte get one byte handler
165 \param ungetbyte unget one byte handler
166 \param client_data opaque data for handers
168 \retval >0 OK (length)
170 Parses MARC line record from stream
171 Returns > 0 for OK (same as length), -1=ERROR
174 int yaz_marc_read_line(yaz_marc_t mt,
175 int (*getbyte)(void *client_data),
176 void (*ungetbyte)(int b, void *client_data),
180 /** \brief parses MARCXML/MarcXchange/TurboMARC record from xmlNode pointer
182 \param ptr is a pointer to root xml node
186 YAZ_EXPORT int yaz_marc_read_xml(yaz_marc_t mt, const xmlNode *ptr);
189 /** \brief writes record in line format
191 \param wrbuf WRBUF for output
195 YAZ_EXPORT int yaz_marc_write_line(yaz_marc_t mt, WRBUF wrbuf);
197 /** \brief writes record in MARCXML format
199 \param wrbuf WRBUF for output
205 YAZ_EXPORT int yaz_marc_write_marcxml(yaz_marc_t mt, WRBUF wrbuf);
207 /** \brief writes record in TurboMARC format
209 \param wrbuf WRBUF for output
213 YAZ_EXPORT int yaz_marc_write_turbomarc(yaz_marc_t mt, WRBUF wrbuf);
215 /** \brief writes record in MarcXchange XML (ISO25577)
217 \param wrbuf WRBUF for output
218 \param format record format (e.g. "MARC21")
219 \param type record type (e.g. Bibliographic)
223 YAZ_EXPORT int yaz_marc_write_marcxchange(yaz_marc_t mt, WRBUF wrbuf,
227 /** \brief writes record in ISO2709 format
229 \param wrbuf WRBUF for output
233 YAZ_EXPORT int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wrbuf);
235 /** \brief writes record in mode - given by yaz_marc_xml mode
237 \param wrbuf WRBUF for output
241 This function calls yaz_marc_write_iso2709, yaz_marc_write_marcxml,
242 etc.. depending on mode given by yaz_marc_xml.
244 YAZ_EXPORT int yaz_marc_write_mode(yaz_marc_t mt, WRBUF wrbuf);
247 /** \brief writes MARC record as libxml2 tree
249 \param root_ptr pointer to record node
250 \param ns namespace of record (such as "http://www.loc.gov/MARC21/slim")
251 \param format MarcXchange format (NULL for none)
252 \param type MarcXchange format (NULL for none)
253 \retval 0 Creation successful and *root_ptr is "record" node
257 int yaz_marc_write_xml(yaz_marc_t mt, xmlNode **root_ptr,
263 /** \brief sets leader spec (for modifying bytes in 24 byte leader)
269 Spec takes form pos=val,pos=val,...
270 where value is either a number (decimal char value) or a
271 string in 'a', e.g. 9='a'
274 YAZ_EXPORT int yaz_marc_leader_spec(yaz_marc_t mt, const char *leader_spec);
277 /** \brief sets leader, validates it, and returns important values
279 \param leader of the 24 byte leader to be set
280 \param indicator_length indicator length (returned value)
281 \param identifier_length identifier length (returned value)
282 \param base_address base address (returned value)
283 \param length_data_entry length of data entry (returned value)
284 \param length_starting length of starting
285 \param length_implementation length of implementation defined data
288 void yaz_marc_set_leader(yaz_marc_t mt, const char *leader,
289 int *indicator_length,
290 int *identifier_length,
292 int *length_data_entry,
293 int *length_starting,
294 int *length_implementation);
297 /** \brief adds MARC comment string
299 \param comment comment to be added)
302 void yaz_marc_add_comment(yaz_marc_t mt, char *comment);
304 /** \brief adds MARC annotation - printf interface
306 \param fmt printf format string
309 void yaz_marc_cprintf(yaz_marc_t mt, const char *fmt, ...);
311 /** \brief adds subfield to MARC structure
313 \param code_data code data buffer
314 \param code_data_len length of code data
317 void yaz_marc_add_subfield(yaz_marc_t mt,
318 const char *code_data, size_t code_data_len);
321 /** \brief adds controlfield to MARC structure
323 \param tag (e.g. "001"
324 \param data value for this tag
325 \param data_len length of data
328 void yaz_marc_add_controlfield(yaz_marc_t mt, const char *tag,
329 const char *data, size_t data_len);
333 /** \brief adds controlfield to MARC structure using xml Nodes
335 \param ptr_tag value of tag (TEXT xmlNode)
336 \param ptr_data value of data (TEXT xmlNode)
339 void yaz_marc_add_controlfield_xml(yaz_marc_t mt, const xmlNode *ptr_tag,
340 const xmlNode *ptr_data);
342 /** \brief adds controlfield to MARC structure using xml Nodes for data
344 \param tag string tag
345 \param ptr_data value of data (TEXT xmlNode)
348 void yaz_marc_add_controlfield_xml2(yaz_marc_t mt, char *tag,
349 const xmlNode *ptr_data);
352 /** \brief adds datafield to MARC structure using strings
354 \param tag value of tag as string
355 \param indicator indicator string
356 \param indicator_len length of indicator string
359 void yaz_marc_add_datafield(yaz_marc_t mt, const char *tag,
360 const char *indicator, size_t indicator_len);
363 /** \brief adds datafield to MARC structure using xml Nodes
365 \param ptr_tag value of tag (TEXT xmlNode)
366 \param indicator indicator string
367 \param indicator_len length of indicator string
370 void yaz_marc_add_datafield_xml(yaz_marc_t mt, const xmlNode *ptr_tag,
371 const char *indicator, size_t indicator_len);
373 /** \brief adds datafield to MARC structure using xml Nodes
375 \param tag_value string value (pointer copied verbatim, not strdupped)
376 \param indicators indicator string ; pointer copied verbatim; not strdupped
379 void yaz_marc_add_datafield_xml2(yaz_marc_t mt, char *tag_value,
384 /** \brief returns memory for MARC handle
386 \retval NMEM handle for MARC system
389 NMEM yaz_marc_get_nmem(yaz_marc_t mt);
391 /** \brief clears memory and MARC record
395 void yaz_marc_reset(yaz_marc_t mt);
397 /** \brief gets debug level for MARC system
401 int yaz_marc_get_debug(yaz_marc_t mt);
403 /** \brief Converts MARC format type to format type(YAZ_MARC_..)
405 \retval -1 unknown format (bad arg)
406 \retval >= 0 OK (one of YAZ_MARC - values)
409 int yaz_marc_decode_formatstr(const char *arg);
411 /** \brief Enables or disables writing of MARC XML records using Libxml2
413 \param enable 0=disable, 1=enable
416 void yaz_marc_write_using_libxml2(yaz_marc_t mt, int enable);
418 /** \brief Performs "pretty" display of OPAC record to WRBUF using marc_t
421 \param wrbuf WRBUF for resulting display string
423 YAZ_EXPORT void yaz_opac_decode_wrbuf(yaz_marc_t mt, Z_OPACRecord *r,
426 /** \brief flushes records
428 \param wr WRBUF for output
432 YAZ_EXPORT int yaz_marc_write_trailer(yaz_marc_t mt, WRBUF wr);
434 /** \brief enables record collection output
437 YAZ_EXPORT void yaz_marc_enable_collection(yaz_marc_t mt);
445 * c-file-style: "Stroustrup"
446 * indent-tabs-mode: nil
448 * vim: shiftwidth=4 tabstop=8 expandtab