-/* $Id: marcread.c,v 1.19 2003-03-05 11:12:18 oleg Exp $
- Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
- Index Data Aps
+/* $Id: marcread.c,v 1.32 2005-12-08 11:06:49 adam Exp $
+ Copyright (C) 1995-2005
+ Index Data ApS
This file is part of the Zebra server.
#include <ctype.h>
#include <assert.h>
-#include <yaz/log.h>
#include <yaz/yaz-util.h>
#include <yaz/marcdisp.h>
-#include "grsread.h"
+#include <idzebra/recgrs.h>
#include "marcomp.h"
#include "inline.h"
#define MARC_DEBUG 0
#define MARCOMP_DEBUG 0
-static data1_node *grs_read_iso2709 (struct grs_read_info *p)
+struct marc_info {
+ char type[256];
+};
+
+static data1_node *grs_read_iso2709 (struct grs_read_info *p, int marc_xml)
{
+ struct marc_info *mi = (struct marc_info*) p->clientData;
char buf[100000];
int entry_p;
int record_length;
int indicator_length;
int identifier_length;
int base_address;
+ int end_of_directory;
int length_data_entry;
int length_starting;
int length_implementation;
if ((*p->readf)(p->fh, buf, 5) != 5)
return NULL;
+ while (*buf < '0' || *buf > '9')
+ {
+ int i;
+
+ yaz_log(YLOG_WARN, "MARC: Skipping bad byte %d (0x%02X)",
+ *buf & 0xff, *buf & 0xff);
+ for (i = 0; i<4; i++)
+ buf[i] = buf[i+1];
+
+ if ((*p->readf)(p->fh, buf+4, 1) != 1)
+ return NULL;
+ }
record_length = atoi_n (buf, 5);
if (record_length < 25)
{
- logf (LOG_WARN, "MARC record length < 25, is %d", record_length);
+ yaz_log (YLOG_WARN, "MARC record length < 25, is %d", record_length);
return NULL;
}
/* read remaining part - attempt to read one byte furhter... */
read_bytes = (*p->readf)(p->fh, buf+5, record_length-4);
if (read_bytes < record_length-5)
{
- logf (LOG_WARN, "Couldn't read whole MARC record");
+ yaz_log (YLOG_WARN, "Couldn't read whole MARC record");
return NULL;
}
if (read_bytes == record_length - 4)
if (p->endf)
(*p->endf)(p->fh, cur_offset - 1);
}
- absynName = p->type;
+ absynName = mi->type;
res_root = data1_mk_root (p->dh, p->mem, absynName);
if (!res_root)
{
- yaz_log (LOG_WARN, "cannot read MARC without an abstract syntax");
+ yaz_log (YLOG_WARN, "cannot read MARC without an abstract syntax");
return 0;
}
- res_top = data1_mk_tag (p->dh, p->mem, absynName, 0, res_root);
+ if (marc_xml)
+ {
+ data1_node *lead;
+ const char *attr[] = { "xmlns", "http://www.loc.gov/MARC21/slim", 0};
+
+ res_top = data1_mk_tag (p->dh, p->mem, "record", attr, res_root);
- if (marctab = res_root->u.root.absyn->marc)
+ lead = data1_mk_tag(p->dh, p->mem, "leader", 0, res_top);
+ data1_mk_text_n(p->dh, p->mem, buf, 24, lead);
+ }
+ else
+ res_top = data1_mk_tag (p->dh, p->mem, absynName, 0, res_root);
+
+ if ((marctab = data1_absyn_getmarctab(p->dh, res_root->u.root.absyn)))
{
memcpy(marctab->leader, buf, 24);
memcpy(marctab->implementation_codes, buf+6, 4);
identifier_length = marctab->force_identifier_length;
else
identifier_length = atoi_n (buf+11, 1);
- base_address = atoi_n (buf+12, 4);
+ base_address = atoi_n (buf+12, 5);
length_data_entry = atoi_n (buf+20, 1);
length_starting = atoi_n (buf+21, 1);
length_implementation = atoi_n (buf+22, 1);
for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
- entry_p += 3+length_data_entry+length_starting;
- base_address = entry_p+1;
- for (entry_p = 24; buf[entry_p] != ISO2709_FS; )
+ {
+ int l = 3 + length_data_entry + length_starting;
+ if (entry_p + l >= record_length)
+ {
+ yaz_log(YLOG_WARN, "MARC: Directory offset %d: end of record.",
+ entry_p);
+ return 0;
+ }
+ /* check for digits in length info */
+ while (--l >= 3)
+ if (!isdigit(*(const unsigned char *) (buf + entry_p+l)))
+ break;
+ if (l >= 3)
+ {
+ /* not all digits, so stop directory scan */
+ yaz_log(YLOG_LOG, "MARC: Bad directory");
+ break;
+ }
+ entry_p += 3 + length_data_entry + length_starting;
+ }
+ end_of_directory = entry_p;
+ if (base_address != entry_p+1)
+ {
+ yaz_log(YLOG_WARN, "MARC: Base address does not follow directory");
+ }
+ for (entry_p = 24; entry_p != end_of_directory; )
{
int data_length;
int data_offset;
entry_p += 3;
tag[3] = '\0';
-
- /* generate field node */
- res = data1_mk_tag_n (p->dh, p->mem, tag, 3, 0 /* attr */, parent);
-
+ if (marc_xml)
+ res = parent;
+ else
+ res = data1_mk_tag_n (p->dh, p->mem, tag, 3, 0 /* attr */, parent);
+
#if MARC_DEBUG
fprintf (outf, "%s ", tag);
#endif
i = data_offset + base_address;
end_offset = i+data_length-1;
+ if (data_length <= 0 || data_offset < 0 || end_offset >= record_length)
+ {
+ yaz_log(YLOG_WARN, "MARC: Bad offsets in data. Skipping rest");
+ break;
+ }
+
if (memcmp (tag, "00", 2) && indicator_length)
{
/* generate indicator node */
+ if (marc_xml)
+ {
+ const char *attr[10];
+ int j;
+
+ attr[0] = "tag";
+ attr[1] = tag;
+ attr[2] = 0;
+
+ res = data1_mk_tag(p->dh, p->mem, "datafield", attr, res);
+
+ for (j = 0; j<indicator_length; j++)
+ {
+ char str1[18], str2[2];
+ sprintf (str1, "ind%d", j+1);
+ str2[0] = buf[i+j];
+ str2[1] = '\0';
+
+ attr[0] = str1;
+ attr[1] = str2;
+
+ data1_tag_add_attr (p->dh, p->mem, res, attr);
+ }
+ }
+ else
+ {
#if MARC_DEBUG
- int j;
+ int j;
#endif
- res = data1_mk_tag_n (p->dh, p->mem,
- buf+i, indicator_length, 0 /* attr */, res);
+ res = data1_mk_tag_n (p->dh, p->mem,
+ buf+i, indicator_length, 0 /* attr */, res);
#if MARC_DEBUG
- for (j = 0; j<indicator_length; j++)
- fprintf (outf, "%c", buf[j+i]);
+ for (j = 0; j<indicator_length; j++)
+ fprintf (outf, "%c", buf[j+i]);
#endif
- i += indicator_length;
- }
+ }
+ i += indicator_length;
+ }
+ else
+ {
+ if (marc_xml)
+ {
+ const char *attr[10];
+
+ attr[0] = "tag";
+ attr[1] = tag;
+ attr[2] = 0;
+
+ res = data1_mk_tag(p->dh, p->mem, "controlfield", attr, res);
+ }
+ }
parent = res;
/* traverse sub fields */
i0 = i;
while (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS && i < end_offset)
{
-
- if (!memcmp(tag, "4", 1) && (!yaz_matchstr(absynName, "UNIMARC")||
- !yaz_matchstr(absynName, "RUSMARC")))
- {
- int go = 1;
- data1_node *res =
- data1_mk_tag_n (p->dh, p->mem,
- buf+i+1, identifier_length-1,
- 0 /* attr */, parent);
- i += identifier_length;
- i0 = i;
- do {
- while (buf[i] != ISO2709_RS && buf[i] != ISO2709_IDFS &&
- buf[i] != ISO2709_FS && i < end_offset)
- {
- i++;
- }
- if (!memcmp(buf+i+1, "1", 1) && i<end_offset)
- {
- go = 0;
- }
- else
- {
- buf[i] = '$';
- }
- } while (go && i < end_offset);
-
- data1_mk_text_n (p->dh, p->mem, buf + i0, i - i0, res);
- i0 = i;
- }
- else if (memcmp (tag, "00", 2) && identifier_length)
+ if (memcmp (tag, "00", 2) && identifier_length)
{
- data1_node *res =
- data1_mk_tag_n (p->dh, p->mem,
- buf+i+1, identifier_length-1,
- 0 /* attr */, parent);
+ data1_node *res;
+ if (marc_xml)
+ {
+ int j;
+ const char *attr[3];
+ char code[10];
+
+ for (j = 1; j<identifier_length && j < 9; j++)
+ code[j-1] = buf[i+j];
+ code[j-1] = 0;
+ attr[0] = "code";
+ attr[1] = code;
+ attr[2] = 0;
+ res = data1_mk_tag(p->dh, p->mem, "subfield",
+ attr, parent);
+ }
+ else
+ {
+ res = data1_mk_tag_n (p->dh, p->mem,
+ buf+i+1, identifier_length-1,
+ 0 /* attr */, parent);
+ }
#if MARC_DEBUG
fprintf (outf, " $");
for (j = 1; j<identifier_length; j++)
}
return res_root;
}
+
/*
* Locate some data under this node. This routine should handle variants
* prettily.
*len = strlen(r);
return r;
}
-static char *tr(char *s, int c1, int c2)
-{
- char *p = s;
-
- while(*p)
- {
- if (*p == c1)
- *p = c2;
- p++;
- }
- return s;
-}
+
static data1_node *lookup_subfield(data1_node *node, const char *name)
{
data1_node *p;
}
return 0;
}
-static inline_subfield *lookup_inline_subfield(inline_subfield *pisf, const char *name)
+
+static inline_subfield *lookup_inline_subfield(inline_subfield *pisf,
+ const char *name)
{
inline_subfield *p;
}
return 0;
}
-static inline_subfield *cat_inline_subfield(mc_subfield *psf, char *buf, inline_subfield *pisf)
+
+static inline_subfield *cat_inline_subfield(mc_subfield *psf, WRBUF buf,
+ inline_subfield *pisf)
{
mc_subfield *p;
{
if (strcmp(p->prefix, "_"))
{
- strcat(strcat(buf, " "), p->prefix);
+ wrbuf_puts(buf, " ");
+ wrbuf_puts(buf, p->prefix);
}
if (p->interval.start == -1)
{
- strcat(buf, found->data);
+ wrbuf_puts(buf, found->data);
}
else
{
- strncat(buf, found->data+p->interval.start,
- p->interval.end-p->interval.start+1);
+ wrbuf_write(buf, found->data+p->interval.start,
+ p->interval.end-p->interval.start);
+ wrbuf_puts(buf, "");
}
if (strcmp(p->suffix, "_"))
{
- strcat(strcat(buf, p->suffix), " ");
+ wrbuf_puts(buf, p->suffix);
+ wrbuf_puts(buf, " ");
}
#if MARCOMP_DEBUG
- logf(LOG_LOG, "cat_inline_subfield(): add subfield $%s", found->name);
+ yaz_log(YLOG_LOG, "cat_inline_subfield(): add subfield $%s", found->name);
#endif
pisf = found->next;
}
}
if (found)
{
- strcat(buf, " (");
+ wrbuf_puts(buf, " (");
pisf = cat_inline_subfield(p->u.child, buf, pisf);
- strcat(buf, ") ");
+ wrbuf_puts(buf, ") ");
}
}
}
return pisf;
}
-static void cat_inline_field(mc_field *pf, char *buf, data1_node *subfield)
-{
-
+
+static void cat_inline_field(mc_field *pf, WRBUF buf, data1_node *subfield)
+{
if (!pf || !subfield)
return;
- for (;subfield; subfield = subfield->next)
+ for (;subfield;)
{
int len;
- inline_field *pif = inline_parse(get_data(subfield,&len));
+ inline_field *pif=NULL;
+ data1_node *psubf;
+
+ if (yaz_matchstr(subfield->u.tag.tag, "1"))
+ {
+ subfield = subfield->next;
+ continue;
+ }
+
+ psubf = subfield;
+ pif = inline_mk_field();
+ do
+ {
+ int i;
+ if ((i=inline_parse(pif, psubf->u.tag.tag, get_data(psubf, &len)))<0)
+ {
+ yaz_log(YLOG_WARN, "inline subfield ($%s): parse error",
+ psubf->u.tag.tag);
+ inline_destroy_field(pif);
+ return;
+ }
+ psubf = psubf->next;
+ } while (psubf && yaz_matchstr(psubf->u.tag.tag, "1"));
+
+ subfield = psubf;
if (pif && !yaz_matchstr(pif->name, pf->name))
{
if (!pf->list && pif->list)
{
- strcat(buf, pif->list->data);
+ wrbuf_puts(buf, pif->list->data);
}
else
{
/*
add separator for inline fields
*/
- if (strlen(buf))
+ if (wrbuf_len(buf))
{
- strcat(buf, "\n");
+ wrbuf_puts(buf, "\n");
}
}
else
{
- logf(LOG_WARN, "In-line field %s missed -- indicators does not match", pif->name);
+ yaz_log(YLOG_WARN, "In-line field %s missed -- indicators do not match", pif->name);
}
}
}
inline_destroy_field(pif);
}
#if MARCOMP_DEBUG
- logf(LOG_LOG, "cat_inline_field(): got buffer {%s}", buf);
+ yaz_log(YLOG_LOG, "cat_inline_field(): got buffer {%s}", buf);
#endif
}
-static data1_node *cat_subfield(mc_subfield *psf, char *buf, data1_node *subfield)
+
+static data1_node *cat_subfield(mc_subfield *psf, WRBUF buf,
+ data1_node *subfield)
{
mc_subfield *p;
if (strcmp(p->prefix, "_"))
{
- strcat(strcat(buf, " "), p->prefix);
+ wrbuf_puts(buf, " ");
+ wrbuf_puts(buf, p->prefix);
}
if (p->u.in_line)
}
else if (p->interval.start == -1)
{
- strcat(buf, get_data(found, &len));
+ wrbuf_puts(buf, get_data(found, &len));
}
else
{
- strncat(buf, get_data(found, &len)+p->interval.start,
- p->interval.end-p->interval.start+1);
+ wrbuf_write(buf, get_data(found, &len)+p->interval.start,
+ p->interval.end-p->interval.start);
+ wrbuf_puts(buf, "");
}
if (strcmp(p->suffix, "_"))
{
- strcat(strcat(buf, p->suffix), " ");
+ wrbuf_puts(buf, p->suffix);
+ wrbuf_puts(buf, " ");
}
#if MARCOMP_DEBUG
- logf(LOG_LOG, "cat_subfield(): add subfield $%s", found->u.tag.tag);
+ yaz_log(YLOG_LOG, "cat_subfield(): add subfield $%s", found->u.tag.tag);
#endif
subfield = found->next;
}
}
if (found)
{
- strcat(buf, " (");
+ wrbuf_puts(buf, " (");
subfield = cat_subfield(p->u.child, buf, subfield);
- strcat(buf, ") ");
+ wrbuf_puts(buf, ") ");
}
}
}
return subfield;
}
-static data1_node *cat_field(struct grs_read_info *p, mc_field *pf, char *buf, data1_node *field)
+
+static data1_node *cat_field(struct grs_read_info *p, mc_field *pf,
+ WRBUF buf, data1_node *field)
{
data1_node *subfield;
int ind1, ind2;
if (pf->interval.start == -1)
{
- strcat(buf, get_data(field, &len));
+ wrbuf_puts(buf, get_data(field, &len));
}
else
{
- strncat(buf, get_data(field, &len)+pf->interval.start,
- pf->interval.end-pf->interval.start+1);
+ wrbuf_write(buf, get_data(field, &len)+pf->interval.start,
+ pf->interval.end-pf->interval.start);
+ wrbuf_puts(buf, "");
}
#if MARCOMP_DEBUG
- logf(LOG_LOG, "cat_field(): got buffer {%s}", buf);
+ yaz_log(YLOG_LOG, "cat_field(): got buffer {%s}", buf);
#endif
return field->next;
}
))
{
#if MARCOMP_DEBUG
- logf(LOG_WARN, "Field %s missed -- does not match indicators", field->u.tag.tag);
+ yaz_log(YLOG_WARN, "Field %s missed -- does not match indicators", field->u.tag.tag);
#endif
return field->next;
}
cat_subfield(pf->list, buf, subfield);
#if MARCOMP_DEBUG
- logf(LOG_LOG, "cat_field(): got buffer {%s}", buf);
+ yaz_log(YLOG_LOG, "cat_field(): got buffer {%s}", buf);
#endif
return field->next;
}
+
static int is_empty(char *s)
{
char *p = s;
for (p = s; *p; p++)
{
- if (!isspace(*p))
+ if (!isspace(*(unsigned char *)p))
return 0;
}
return 1;
}
-static void parse_data1_tree(struct grs_read_info *p, const char *mc_stmnt, data1_node *root)
+
+static void parse_data1_tree(struct grs_read_info *p, const char *mc_stmnt,
+ data1_node *root)
{
- data1_marctab *marctab = root->u.root.absyn->marc;
+ data1_marctab *marctab = data1_absyn_getmarctab(p->dh, root->u.root.absyn);
data1_node *top = root->child;
data1_node *field;
mc_context *c;
mc_field *pf;
- char buf[1000000];
+ WRBUF buf;
c = mc_mk_context(mc_stmnt+3);
mc_destroy_context(c);
return;
}
+ buf = wrbuf_alloc();
#if MARCOMP_DEBUG
- logf(LOG_LOG, "parse_data1_tree(): statement -{%s}", mc_stmnt);
+ yaz_log(YLOG_LOG, "parse_data1_tree(): statement -{%s}", mc_stmnt);
#endif
if (!yaz_matchstr(pf->name, "ldr"))
{
data1_node *new;
#if MARCOMP_DEBUG
- logf(LOG_LOG,"parse_data1_tree(): try LEADER from {%d} to {%d} positions",
+ yaz_log(YLOG_LOG,"parse_data1_tree(): try LEADER from {%d} to {%d} positions",
pf->interval.start, pf->interval.end);
#endif
new = data1_mk_tag_n(p->dh, p->mem, mc_stmnt, strlen(mc_stmnt), 0, top);
if (!yaz_matchstr(field->u.tag.tag, pf->name))
{
data1_node *new;
- char *pb = buf;
+ char *pb;
#if MARCOMP_DEBUG
- logf(LOG_LOG, "parse_data1_tree(): try field {%s}", field->u.tag.tag);
+ yaz_log(YLOG_LOG, "parse_data1_tree(): try field {%s}", field->u.tag.tag);
#endif
- *buf = '\0';
+ wrbuf_rewind(buf);
+ wrbuf_puts(buf, "");
+
field = cat_field(p, pf, buf, field);
+ pb = wrbuf_buf(buf);
for (pb = strtok(pb, "\n"); pb; pb = strtok(NULL, "\n"))
{
if (!is_empty(pb))
}
mc_destroy_field(pf);
mc_destroy_context(c);
+ wrbuf_free(buf, 1);
+}
+
+data1_node *grs_read_marcxml(struct grs_read_info *p)
+{
+ data1_node *root = grs_read_iso2709(p, 1);
+ data1_element *e;
+
+ if (!root)
+ return 0;
+
+ for (e = data1_absyn_getelements(p->dh, root->u.root.absyn); e; e=e->next)
+ {
+ data1_tag *tag = e->tag;
+
+ if (tag && tag->which == DATA1T_string &&
+ !yaz_matchstr(tag->value.string, "mc?"))
+ parse_data1_tree(p, tag->value.string, root);
+ }
+ return root;
}
data1_node *grs_read_marc(struct grs_read_info *p)
{
- data1_node *root = grs_read_iso2709(p);
+ data1_node *root = grs_read_iso2709(p, 0);
data1_element *e;
if (!root)
return 0;
- for (e=root->u.root.absyn->main_elements; e; e=e->next)
+ for (e = data1_absyn_getelements(p->dh, root->u.root.absyn); e; e=e->next)
{
data1_tag *tag = e->tag;
}
return root;
}
-static void *grs_init_marc(void)
+
+static void *init_marc(Res res, RecType rt)
{
- return 0;
+ struct marc_info *p = xmalloc(sizeof(*p));
+ strcpy(p->type, "");
+ return p;
+}
+
+static void config_marc(void *clientData, Res res, const char *args)
+{
+ struct marc_info *p = (struct marc_info*) clientData;
+ if (strlen(args) < sizeof(p->type))
+ strcpy(p->type, args);
+}
+
+static void destroy_marc(void *clientData)
+{
+ struct marc_info *p = (struct marc_info*) clientData;
+ xfree (p);
}
-static void grs_destroy_marc(void *clientData)
+
+static int extract_marc(void *clientData, struct recExtractCtrl *ctrl)
+{
+ return zebra_grs_extract(clientData, ctrl, grs_read_marc);
+}
+
+static int retrieve_marc(void *clientData, struct recRetrieveCtrl *ctrl)
+{
+ return zebra_grs_retrieve(clientData, ctrl, grs_read_marc);
+}
+
+static struct recType marc_type = {
+ 0,
+ "grs.marc",
+ init_marc,
+ config_marc,
+ destroy_marc,
+ extract_marc,
+ retrieve_marc,
+};
+
+static int extract_marcxml(void *clientData, struct recExtractCtrl *ctrl)
+{
+ return zebra_grs_extract(clientData, ctrl, grs_read_marcxml);
+}
+
+static int retrieve_marcxml(void *clientData, struct recRetrieveCtrl *ctrl)
{
+ return zebra_grs_retrieve(clientData, ctrl, grs_read_marcxml);
}
-static struct recTypeGrs marc_type = {
- "marc",
- grs_init_marc,
- grs_destroy_marc,
- grs_read_marc
+static struct recType marcxml_type = {
+ 0,
+ "grs.marcxml",
+ init_marc,
+ config_marc,
+ destroy_marc,
+ extract_marcxml,
+ retrieve_marcxml,
};
-RecTypeGrs recTypeGrs_marc = &marc_type;
+RecType
+#ifdef IDZEBRA_STATIC_GRS_MARC
+idzebra_filter_grs_marc
+#else
+idzebra_filter
+#endif
+
+[] = {
+ &marc_type,
+ &marcxml_type,
+ 0,
+};
+