1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2009 Index Data.
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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_MARC_SIMPLEXML, ... */
56 YAZ_EXPORT void yaz_marc_xml(yaz_marc_t mt, int xmlmode);
58 /** \brief Output format: Line-format */
59 #define YAZ_MARC_LINE 0
60 /** \brief Output format: simplexml (no longer supported) */
61 #define YAZ_MARC_SIMPLEXML 1
62 /** \brief Output format: OAI-MARC (no longer supported) */
63 #define YAZ_MARC_OAIMARC 2
64 /** \brief Output format: MARCXML */
65 #define YAZ_MARC_MARCXML 3
66 /** \brief Output format: ISO2709 */
67 #define YAZ_MARC_ISO2709 4
68 /** \brief Output format: MarcXchange */
69 #define YAZ_MARC_XCHANGE 5
70 /** \brief Output format: check only (no marc output) */
71 #define YAZ_MARC_CHECK 6
73 /** \brief set iconv handle for character set conversion .. */
74 YAZ_EXPORT void yaz_marc_iconv(yaz_marc_t mt, yaz_iconv_t cd);
76 /** \brief supply iconv handle for character set conversion .. */
77 YAZ_EXPORT yaz_iconv_t yaz_marc_get_iconv(yaz_marc_t mt);
79 /** \brief set debug level
81 \param level level, where 0=lowest, 1 more debug, 2 even more
83 YAZ_EXPORT void yaz_marc_debug(yaz_marc_t mt, int level);
85 /** \brief decodes ISO2709 buffer using straight buffers
87 \param buf input buffer
88 \param bsize size of buffer or (-1 if "any size")
89 \param result result to be stored here
90 \param rsize size of result (memory "owned" by yaz_marc_mt handle)
92 Decodes MARC in buf of size bsize.
93 On success, result in *result with size *rsize.
94 Returns -1 on error, or size of input record (>0) if OK
96 YAZ_EXPORT int yaz_marc_decode_buf(yaz_marc_t mt, const char *buf, int bsize,
97 const char **result, size_t *rsize);
99 /** \brief decodes ISO2709/MARC buffer and stores result in WRBUF
101 \param buf input buffer
102 \param bsize size of buffer (-1 if "any size")
103 \param wrbuf WRBUF for output
105 Decodes MARC in buf of size bsize.
106 On success, result in wrbuf
107 Returns -1 on error, or size of input record (>0) if OK
109 YAZ_EXPORT int yaz_marc_decode_wrbuf(yaz_marc_t mt, const char *buf,
110 int bsize, WRBUF wrbuf);
112 YAZ_EXPORT void yaz_marc_subfield_str(yaz_marc_t mt, const char *s);
113 YAZ_EXPORT void yaz_marc_endline_str(yaz_marc_t mt, const char *s);
115 /** \brief modifies part of the MARC leader */
116 YAZ_EXPORT void yaz_marc_modify_leader(yaz_marc_t mt, size_t off,
119 /** \brief like atoi(3) except that it reads exactly len characters */
120 YAZ_EXPORT int atoi_n(const char *buf, int len);
122 /** \brief like atoi_n but checks for proper formatting
123 \param buf buffer to read values from
124 \param size size of buffer
125 \param val value of decimal number (if successful)
126 \retval 0 no value found (non-digits found)
127 \retval 1 value found and *val holds value
130 int atoi_n_check(const char *buf, int size, int *val);
132 /** \brief MARC control char: record separator (29 Dec, 1D Hex) */
133 #define ISO2709_RS 035
134 /** \brief MARC control char: field separator (30 Dec, 1E Hex) */
135 #define ISO2709_FS 036
136 /** \brief MARC control char: identifier-field separator (31 Dec, 1F Hex) */
137 #define ISO2709_IDFS 037
139 /** \brief read ISO2709/MARC record from buffer
141 \param buf ISO2709 buffer of size bsize
142 \param bsize size of buffer (-1 for unlimited size)
144 Parses ISO2709 record from supplied buffer
145 Returns > 0 for OK (same as length), -1=ERROR
147 YAZ_EXPORT int yaz_marc_read_iso2709(yaz_marc_t mt,
148 const char *buf, int bsize);
150 /** \brief read MARC lineformat from stream
152 \param getbyte get one byte handler
153 \param ungetbyte unget one byte handler
154 \param client_data opaque data for handers
156 Parses MARC line record from stream
157 Returns > 0 for OK (same as length), -1=ERROR
160 int yaz_marc_read_line(yaz_marc_t mt,
161 int (*getbyte)(void *client_data),
162 void (*ungetbyte)(int b, void *client_data),
166 /** \brief parses MARCXML/MarcXchange record from xmlNode pointer
168 \param ptr is a pointer to root xml node
170 Returns 0=OK, -1=ERROR
172 YAZ_EXPORT int yaz_marc_read_xml(yaz_marc_t mt, const xmlNode *ptr);
175 /** \brief writes record in line format
177 \param wrbuf WRBUF for output
179 Returns 0=OK, -1=ERROR
181 YAZ_EXPORT int yaz_marc_write_line(yaz_marc_t mt, WRBUF wrbuf);
183 /** \brief writes record in MARCXML format
185 \param wrbuf WRBUF for output
187 Sets leader[9]='a' . Returns 0=OK, -1=ERROR .
189 YAZ_EXPORT int yaz_marc_write_marcxml(yaz_marc_t mt, WRBUF wrbuf);
191 /** \brief writes record in MarcXchange XML
193 \param wrbuf WRBUF for output
194 \param format record format (e.g. "MARC21")
195 \param type record type (e.g. Bibliographic)
197 Returns 0=OK, -1=ERROR
199 YAZ_EXPORT int yaz_marc_write_marcxchange(yaz_marc_t mt, WRBUF wrbuf,
203 /** \brief writes record in ISO2709 format
205 \param wrbuf WRBUF for output
206 Returns 0=OK, -1=ERROR
208 YAZ_EXPORT int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wrbuf);
210 /** \brief writes record in mode - given by yaz_marc_xml mode
212 \param wrbuf WRBUF for output
213 This function calls yaz_marc_write_iso2709, yaz_marc_write_marcxml,
214 etc.. depending on mode given by yaz_marc_xml.
215 Returns 0=OK, -1=ERROR
217 YAZ_EXPORT int yaz_marc_write_mode(yaz_marc_t mt, WRBUF wrbuf);
220 /** \brief writes MARC record as libxml2 tree
222 \param root_ptr pointer to record node
223 \param ns namespace of record (such as "http://www.loc.gov/MARC21/slim")
224 \param format MarcXchange format (NULL for none)
225 \param type MarcXchange format (NULL for none)
226 \retval 0 Creation successful and *root_ptr is "record" node
230 int yaz_marc_write_xml(yaz_marc_t mt, xmlNode **root_ptr,
236 /** \brief sets leader spec (for modifying bytes in 24 byte leader)
242 Spec takes form pos=val,pos=val,...
243 where value is either a number (decimal char value) or a
244 string in 'a', e.g. 9='a'
247 YAZ_EXPORT int yaz_marc_leader_spec(yaz_marc_t mt, const char *leader_spec);
250 /** \brief sets leader, validates it, and returns important values
252 \param leader of the 24 byte leader to be set
253 \param indicator_length indicator length (returned value)
254 \param identifier_length identifier length (returned value)
255 \param base_address base address (returned value)
256 \param length_data_entry length of data entry (returned value)
257 \param length_starting length of starting
258 \param length_implementation length of implementation defined data
261 void yaz_marc_set_leader(yaz_marc_t mt, const char *leader,
262 int *indicator_length,
263 int *identifier_length,
265 int *length_data_entry,
266 int *length_starting,
267 int *length_implementation);
270 /** \brief adds MARC comment string
272 \param comment comment to be added)
275 void yaz_marc_add_comment(yaz_marc_t mt, char *comment);
277 /** \brief adds MARC annotation - printf interface
279 \param fmt printf format string
282 void yaz_marc_cprintf(yaz_marc_t mt, const char *fmt, ...);
284 /** \brief adds subfield to MARC structure
286 \param code_data code data buffer
287 \param code_data_len length of code data
290 void yaz_marc_add_subfield(yaz_marc_t mt,
291 const char *code_data, size_t code_data_len);
294 /** \brief adds controlfield to MARC structure
296 \param tag (e.g. "001"
297 \param data value for this tag
298 \param data_len length of data
301 void yaz_marc_add_controlfield(yaz_marc_t mt, const char *tag,
302 const char *data, size_t data_len);
306 /** \brief adds controlfield to MARC structure using xml Nodes
308 \param ptr_tag value of tag (TEXT xmlNode)
309 \param ptr_data value of data (TEXT xmlNode)
312 void yaz_marc_add_controlfield_xml(yaz_marc_t mt, const xmlNode *ptr_tag,
313 const xmlNode *ptr_data);
316 /** \brief adds datafield to MARC structure using strings
318 \param tag value of tag as string
319 \param indicator indicator string
320 \param indicator_len length of indicator string
323 void yaz_marc_add_datafield(yaz_marc_t mt, const char *tag,
324 const char *indicator, size_t indicator_len);
327 /** \brief adds datafield to MARC structure using xml Nodes
329 \param ptr_tag value of tag (TEXT xmlNode)
330 \param indicator indicator string
331 \param indicator_len length of indicator string
334 void yaz_marc_add_datafield_xml(yaz_marc_t mt, const xmlNode *ptr_tag,
335 const char *indicator, size_t indicator_len);
338 /** \brief returns memory for MARC handle
340 \retval NMEM handle for MARC system
343 NMEM yaz_marc_get_nmem(yaz_marc_t mt);
345 /** \brief clears memory and MARC record
349 void yaz_marc_reset(yaz_marc_t mt);
351 /** \brief gets debug level for MARC system
355 int yaz_marc_get_debug(yaz_marc_t mt);
357 /** \brief convert MARC format type to format type(YAZ_MARC_..)
359 \returns -1 if arg is not a known format; YAZ_MARC_.. otherwise (OK)
362 int yaz_marc_decode_formatstr(const char *arg);
364 /** \brief enable writing of MARC XML records using Libxml2
366 \param enable 0=disable, 1=enable
369 void yaz_marc_write_using_libxml2(yaz_marc_t mt, int enable);
371 /** \brief Performs "pretty" display of OPAC record to WRBUF */
372 YAZ_EXPORT void yaz_display_OPAC(WRBUF wrbuf, Z_OPACRecord *r, int flags);
374 /** \brief Performs "pretty" display of OPAC record to WRBUF using marc_t */
375 YAZ_EXPORT void yaz_opac_decode_wrbuf(yaz_marc_t mt, Z_OPACRecord *r, WRBUF wrbuf);
378 /** \brief flushes records
380 \param wr WRBUF for output
384 YAZ_EXPORT int yaz_marc_write_trailer(yaz_marc_t mt, WRBUF wr);
386 /** \brief enables record collection output
389 YAZ_EXPORT void yaz_marc_enable_collection(yaz_marc_t mt);
397 * c-file-style: "Stroustrup"
398 * indent-tabs-mode: nil
400 * vim: shiftwidth=4 tabstop=8 expandtab