2 * Copyright (c) 1995-2004, Index Data
3 * See the file LICENSE for details.
5 * $Id: marcdisp.c,v 1.5 2004-03-16 13:15:58 adam Exp $
15 #include <yaz/marcdisp.h>
16 #include <yaz/wrbuf.h>
17 #include <yaz/yaz-util.h>
26 yaz_marc_t yaz_marc_create(void)
28 yaz_marc_t mt = (yaz_marc_t) xmalloc(sizeof(*mt));
29 mt->xml = YAZ_MARC_LINE;
31 mt->m_wr = wrbuf_alloc();
36 void yaz_marc_destroy(yaz_marc_t mt)
40 wrbuf_free (mt->m_wr, 1);
44 static void marc_cdata (yaz_marc_t mt, const char *buf, size_t len, WRBUF wr)
46 if (mt->xml == YAZ_MARC_ISO2709)
47 wrbuf_iconv_write(wr, mt->iconv_cd, buf, len);
48 else if (mt->xml == YAZ_MARC_LINE)
49 wrbuf_iconv_write(wr, mt->iconv_cd, buf, len);
51 wrbuf_iconv_write_cdata(wr, mt->iconv_cd, buf, len);
54 int yaz_marc_decode_wrbuf (yaz_marc_t mt, const char *buf, int bsize, WRBUF wr)
59 int identifier_length;
61 int length_data_entry;
63 int length_implementation;
67 record_length = atoi_n (buf, 5);
68 if (record_length < 25)
74 sprintf (str, "Record length %d - aborting\n", record_length);
79 /* ballout if bsize is known and record_length is less than that */
80 if (bsize != -1 && record_length > bsize)
83 indicator_length = atoi_n (buf+10, 1);
87 identifier_length = atoi_n (buf+11, 1);
89 identifier_length = 2;
90 base_address = atoi_n (buf+12, 5);
92 length_data_entry = atoi_n (buf+20, 1);
93 length_starting = atoi_n (buf+21, 1);
94 length_implementation = atoi_n (buf+22, 1);
96 if (mt->xml != YAZ_MARC_LINE)
102 case YAZ_MARC_ISO2709:
104 case YAZ_MARC_SIMPLEXML:
105 wrbuf_puts (wr, "<iso2709\n");
106 sprintf (str, " RecordStatus=\"%c\"\n", buf[5]);
107 wrbuf_puts (wr, str);
108 sprintf (str, " TypeOfRecord=\"%c\"\n", buf[6]);
109 wrbuf_puts (wr, str);
110 for (i = 1; i<=19; i++)
112 sprintf (str, " ImplDefined%d=\"%c\"\n", i, buf[6+i]);
113 wrbuf_puts (wr, str);
115 wrbuf_puts (wr, ">\n");
117 case YAZ_MARC_OAIMARC:
120 "<oai_marc xmlns=\"http://www.openarchives.org/OIA/oai_marc\""
122 " xmlns:xsi=\"http://www.w3.org/2000/10/XMLSchema-instance\""
124 " xsi:schemaLocation=\"http://www.openarchives.org/OAI/oai_marc.xsd\""
128 sprintf (str, " status=\"%c\" type=\"%c\" catForm=\"%c\">\n",
129 buf[5], buf[6], buf[7]);
130 wrbuf_puts (wr, str);
132 case YAZ_MARC_MARCXML:
135 "<record xmlns=\"http://www.loc.gov/MARC21/slim\">\n"
137 marc_cdata(mt, buf, 24, wr);
138 wrbuf_printf(wr, "</leader>\n");
147 wrbuf_puts (wr, "<!--\n");
148 sprintf (str, "Record length %5d\n", record_length);
149 wrbuf_puts (wr, str);
150 sprintf (str, "Indicator length %5d\n", indicator_length);
151 wrbuf_puts (wr, str);
152 sprintf (str, "Identifier length %5d\n", identifier_length);
153 wrbuf_puts (wr, str);
154 sprintf (str, "Base address %5d\n", base_address);
155 wrbuf_puts (wr, str);
156 sprintf (str, "Length data entry %5d\n", length_data_entry);
157 wrbuf_puts (wr, str);
158 sprintf (str, "Length starting %5d\n", length_starting);
159 wrbuf_puts (wr, str);
160 sprintf (str, "Length implementation %5d\n", length_implementation);
161 wrbuf_puts (wr, str);
163 wrbuf_puts (wr, "-->\n");
166 /* first pass. determine length of directory & base of data */
167 for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
169 entry_p += 3+length_data_entry+length_starting;
170 if (entry_p >= record_length)
173 if (mt->debug && base_address != entry_p+1)
175 wrbuf_printf (wr," <!-- base address not at end of directory "
176 "base=%d end=%d -->\n", base_address, entry_p+1);
178 base_address = entry_p+1;
180 if (mt->xml == YAZ_MARC_ISO2709)
182 WRBUF wr_head = wrbuf_alloc();
183 WRBUF wr_dir = wrbuf_alloc();
184 WRBUF wr_tmp = wrbuf_alloc();
187 /* second pass. create directory for ISO2709 output */
188 for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
190 int data_length, data_offset, end_offset;
193 wrbuf_write(wr_dir, buf+entry_p, 3);
196 data_length = atoi_n (buf+entry_p, length_data_entry);
197 entry_p += length_data_entry;
198 data_offset = atoi_n (buf+entry_p, length_starting);
199 entry_p += length_starting;
200 i = data_offset + base_address;
201 end_offset = i+data_length-1;
203 while (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS &&
206 sz1 = 1+i - (data_offset + base_address);
209 sz2 = wrbuf_iconv_write(wr_tmp, mt->iconv_cd,
210 buf + data_offset+base_address, sz1);
211 wrbuf_rewind(wr_tmp);
215 wrbuf_printf(wr_dir, "%0*d", length_data_entry, sz2);
216 wrbuf_printf(wr_dir, "%0*d", length_starting, data_p);
219 wrbuf_putc(wr_dir, ISO2709_FS);
220 wrbuf_printf(wr_head, "%05d", data_p+1 + base_address);
221 wrbuf_write(wr_head, buf+5, 7);
222 wrbuf_printf(wr_head, "%05d", base_address);
223 wrbuf_write(wr_head, buf+17, 7);
225 wrbuf_write(wr, wrbuf_buf(wr_head), 24);
226 wrbuf_write(wr, wrbuf_buf(wr_dir), wrbuf_len(wr_dir));
227 wrbuf_free(wr_head, 1);
228 wrbuf_free(wr_dir, 1);
229 wrbuf_free(wr_tmp, 1);
231 /* third pass. create data output */
232 for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
239 int identifier_flag = 1;
241 memcpy (tag, buf+entry_p, 3);
244 data_length = atoi_n (buf+entry_p, length_data_entry);
245 entry_p += length_data_entry;
246 data_offset = atoi_n (buf+entry_p, length_starting);
247 entry_p += length_starting;
248 i = data_offset + base_address;
249 end_offset = i+data_length-1;
251 if (indicator_length < 4 && indicator_length > 0)
253 if (buf[i + indicator_length] != ISO2709_IDFS)
256 else if (!memcmp (tag, "00", 2))
263 wrbuf_puts (wr, "Tag: ");
264 wrbuf_puts (wr, tag);
265 wrbuf_puts (wr, " ");
267 case YAZ_MARC_SIMPLEXML:
268 wrbuf_printf (wr, "<field tag=\"%s\"", tag);
270 case YAZ_MARC_OAIMARC:
272 wrbuf_printf (wr, " <varfield id=\"%s\"", tag);
274 wrbuf_printf (wr, " <fixfield id=\"%s\"", tag);
276 case YAZ_MARC_MARCXML:
278 wrbuf_printf (wr, " <datafield tag=\"%s\"", tag);
280 wrbuf_printf (wr, " <controlfield tag=\"%s\"", tag);
285 for (j = 0; j<indicator_length; j++, i++)
289 case YAZ_MARC_ISO2709:
290 wrbuf_putc(wr, buf[i]);
294 wrbuf_puts (wr, " Ind: ");
295 wrbuf_putc(wr, buf[i]);
297 case YAZ_MARC_SIMPLEXML:
298 wrbuf_printf(wr, " Indicator%d=\"%c\"", j+1, buf[i]);
300 case YAZ_MARC_OAIMARC:
301 wrbuf_printf(wr, " i%d=\"%c\"", j+1, buf[i]);
303 case YAZ_MARC_MARCXML:
304 wrbuf_printf(wr, " ind%d=\"%c\"", j+1, buf[i]);
308 if (mt->xml == YAZ_MARC_SIMPLEXML || mt->xml == YAZ_MARC_MARCXML
309 || mt->xml == YAZ_MARC_OAIMARC)
311 wrbuf_puts (wr, ">");
313 wrbuf_puts (wr, "\n");
315 if (mt->xml == YAZ_MARC_LINE)
318 wrbuf_puts (wr, " Fields: ");
322 while (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS && i < end_offset)
328 case YAZ_MARC_ISO2709:
330 wrbuf_iconv_write(wr, mt->iconv_cd,
331 buf+i, identifier_length);
332 i += identifier_length;
335 wrbuf_puts (wr, " $");
336 for (j = 1; j<identifier_length; j++, i++)
337 wrbuf_putc (wr, buf[i]);
338 wrbuf_putc (wr, ' ');
340 case YAZ_MARC_SIMPLEXML:
341 wrbuf_puts (wr, " <subfield code=\"");
342 for (j = 1; j<identifier_length; j++, i++)
343 wrbuf_putc (wr, buf[i]);
344 wrbuf_puts (wr, "\">");
346 case YAZ_MARC_OAIMARC:
347 wrbuf_puts (wr, " <subfield label=\"");
348 for (j = 1; j<identifier_length; j++, i++)
349 wrbuf_putc (wr, buf[i]);
350 wrbuf_puts (wr, "\">");
352 case YAZ_MARC_MARCXML:
353 wrbuf_puts (wr, " <subfield code=\"");
354 for (j = 1; j<identifier_length; j++, i++)
355 wrbuf_putc (wr, buf[i]);
356 wrbuf_puts (wr, "\">");
360 while (buf[i] != ISO2709_RS && buf[i] != ISO2709_IDFS &&
361 buf[i] != ISO2709_FS && i < end_offset)
363 marc_cdata(mt, buf + i0, i - i0, wr);
365 if (mt->xml == YAZ_MARC_ISO2709 && buf[i] != ISO2709_IDFS)
366 marc_cdata(mt, buf + i, 1, wr);
368 if (mt->xml == YAZ_MARC_SIMPLEXML ||
369 mt->xml == YAZ_MARC_MARCXML ||
370 mt->xml == YAZ_MARC_OAIMARC)
371 wrbuf_puts (wr, "</subfield>\n");
377 while (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS && i < end_offset)
379 marc_cdata(mt, buf + i0, i - i0, wr);
380 if (mt->xml == YAZ_MARC_ISO2709)
381 marc_cdata(mt, buf + i, 1, wr);
383 if (mt->xml == YAZ_MARC_LINE)
384 wrbuf_putc (wr, '\n');
386 wrbuf_puts (wr, " <!-- separator but not at end of field -->\n");
387 if (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS)
388 wrbuf_puts (wr, " <!-- no separator at end of field -->\n");
391 case YAZ_MARC_SIMPLEXML:
392 wrbuf_puts (wr, "</field>\n");
394 case YAZ_MARC_OAIMARC:
396 wrbuf_puts (wr, " </varfield>\n");
398 wrbuf_puts (wr, " </fixfield>\n");
400 case YAZ_MARC_MARCXML:
402 wrbuf_puts (wr, " </datafield>\n");
404 wrbuf_puts (wr, " </controlfield>\n");
413 case YAZ_MARC_SIMPLEXML:
414 wrbuf_puts (wr, "</iso2709>\n");
416 case YAZ_MARC_OAIMARC:
417 wrbuf_puts (wr, "</oai_marc>\n");
419 case YAZ_MARC_MARCXML:
420 wrbuf_puts (wr, "</record>\n");
422 case YAZ_MARC_ISO2709:
423 wrbuf_putc (wr, ISO2709_RS);
426 return record_length;
429 int yaz_marc_decode_buf (yaz_marc_t mt, const char *buf, int bsize,
430 char **result, int *rsize)
432 int r = yaz_marc_decode_wrbuf(mt, buf, bsize, mt->m_wr);
436 *result = wrbuf_buf(mt->m_wr);
438 *rsize = wrbuf_len(mt->m_wr);
443 void yaz_marc_xml(yaz_marc_t mt, int xmlmode)
449 void yaz_marc_debug(yaz_marc_t mt, int level)
455 void yaz_marc_iconv(yaz_marc_t mt, yaz_iconv_t cd)
461 int yaz_marc_decode(const char *buf, WRBUF wr, int debug, int bsize, int xml)
463 yaz_marc_t mt = yaz_marc_create();
468 r = yaz_marc_decode_wrbuf(mt, buf, bsize, wr);
469 yaz_marc_destroy(mt);
474 int marc_display_wrbuf (const char *buf, WRBUF wr, int debug, int bsize)
476 return yaz_marc_decode(buf, wr, debug, bsize, 0);
480 int marc_display_exl (const char *buf, FILE *outf, int debug, int bsize)
482 yaz_marc_t mt = yaz_marc_create();
486 r = yaz_marc_decode_wrbuf (mt, buf, bsize, mt->m_wr);
490 fwrite (wrbuf_buf(mt->m_wr), 1, wrbuf_len(mt->m_wr), outf);
491 yaz_marc_destroy(mt);
496 int marc_display_ex (const char *buf, FILE *outf, int debug)
498 return marc_display_exl (buf, outf, debug, -1);
502 int marc_display (const char *buf, FILE *outf)
504 return marc_display_ex (buf, outf, 0);