X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=src%2Fmarcdisp.c;h=a2a3250f4e2f45ee628852dc58a4177f23d9eeda;hp=6c8a603f21ad107f2090283cf1e738bd66ba5283;hb=dda6b9f4ca21d43c68d4c667b4d8e6d1bdaba095;hpb=75f5418ca1d43364857be2fe987da45611e8a9a5 diff --git a/src/marcdisp.c b/src/marcdisp.c index 6c8a603..a2a3250 100644 --- a/src/marcdisp.c +++ b/src/marcdisp.c @@ -1,8 +1,6 @@ -/* - * Copyright (C) 1995-2006, Index Data ApS +/* This file is part of the YAZ toolkit. + * Copyright (C) 1995-2008 Index Data * See the file LICENSE for details. - * - * $Id: marcdisp.c,v 1.36 2006-12-07 11:08:05 adam Exp $ */ /** @@ -20,20 +18,26 @@ #include #include +#include #include #include #include #include #include #include +#include #if YAZ_HAVE_XML2 #include #include #endif -static void yaz_marc_reset(yaz_marc_t mt); - +enum yaz_collection_state { + no_collection, + collection_first, + collection_second +}; + /** \brief node types for yaz_marc_node */ enum YAZ_MARC_NODE_TYPE { @@ -85,6 +89,8 @@ struct yaz_marc_t_ { NMEM nmem; int xml; int debug; + int write_using_libxml2; + enum yaz_collection_state enable_collection; yaz_iconv_t iconv_cd; char subfield_str[8]; char endline_str[8]; @@ -99,6 +105,8 @@ yaz_marc_t yaz_marc_create(void) yaz_marc_t mt = (yaz_marc_t) xmalloc(sizeof(*mt)); mt->xml = YAZ_MARC_LINE; mt->debug = 0; + mt->write_using_libxml2 = 0; + mt->enable_collection = no_collection; mt->m_wr = wrbuf_alloc(); mt->iconv_cd = 0; mt->leader_spec = 0; @@ -115,24 +123,47 @@ void yaz_marc_destroy(yaz_marc_t mt) if (!mt) return ; nmem_destroy(mt->nmem); - wrbuf_free(mt->m_wr, 1); + wrbuf_destroy(mt->m_wr); xfree(mt->leader_spec); xfree(mt); } +NMEM yaz_marc_get_nmem(yaz_marc_t mt) +{ + return mt->nmem; +} + +static void marc_iconv_reset(yaz_marc_t mt, WRBUF wr) +{ + wrbuf_iconv_reset(wr, mt->iconv_cd); +} + static int marc_exec_leader(const char *leader_spec, char *leader, size_t size); -struct yaz_marc_node *yaz_marc_add_node(yaz_marc_t mt) +static struct yaz_marc_node *yaz_marc_add_node(yaz_marc_t mt) { - struct yaz_marc_node *n = nmem_malloc(mt->nmem, sizeof(*n)); + struct yaz_marc_node *n = (struct yaz_marc_node *) + nmem_malloc(mt->nmem, sizeof(*n)); n->next = 0; *mt->nodes_pp = n; mt->nodes_pp = &n->next; return n; } +#if YAZ_HAVE_XML2 +void yaz_marc_add_controlfield_xml(yaz_marc_t mt, const xmlNode *ptr_tag, + const xmlNode *ptr_data) +{ + struct yaz_marc_node *n = yaz_marc_add_node(mt); + n->which = YAZ_MARC_CONTROLFIELD; + n->u.controlfield.tag = nmem_text_node_cdata(ptr_tag, mt->nmem); + n->u.controlfield.data = nmem_text_node_cdata(ptr_data, mt->nmem); +} +#endif + + void yaz_marc_add_comment(yaz_marc_t mt, char *comment) { struct yaz_marc_node *n = yaz_marc_add_node(mt); @@ -144,23 +175,18 @@ void yaz_marc_cprintf(yaz_marc_t mt, const char *fmt, ...) { va_list ap; char buf[200]; - va_start(ap, fmt); -#ifdef WIN32 - _vsnprintf(buf, sizeof(buf)-1, fmt, ap); -#else -/* !WIN32 */ -#if HAVE_VSNPRINTF - vsnprintf(buf, sizeof(buf), fmt, ap); -#else - vsprintf(buf, fmt, ap); -#endif -#endif -/* WIN32 */ + va_start(ap, fmt); + yaz_vsnprintf(buf, sizeof(buf)-1, fmt, ap); yaz_marc_add_comment(mt, buf); va_end (ap); } +int yaz_marc_get_debug(yaz_marc_t mt) +{ + return mt->debug; +} + void yaz_marc_add_leader(yaz_marc_t mt, const char *leader, size_t leader_len) { struct yaz_marc_node *n = yaz_marc_add_node(mt); @@ -190,17 +216,6 @@ void yaz_marc_add_controlfield(yaz_marc_t mt, const char *tag, } } -#if YAZ_HAVE_XML2 -void yaz_marc_add_controlfield_xml(yaz_marc_t mt, const xmlNode *ptr_tag, - const xmlNode *ptr_data) -{ - struct yaz_marc_node *n = yaz_marc_add_node(mt); - n->which = YAZ_MARC_CONTROLFIELD; - n->u.controlfield.tag = nmem_text_node_cdata(ptr_tag, mt->nmem); - n->u.controlfield.data = nmem_text_node_cdata(ptr_data, mt->nmem); -} -#endif - void yaz_marc_add_datafield(yaz_marc_t mt, const char *tag, const char *indicator, size_t indicator_len) { @@ -249,7 +264,8 @@ void yaz_marc_add_subfield(yaz_marc_t mt, if (mt->subfield_pp) { - struct yaz_marc_subfield *n = nmem_malloc(mt->nmem, sizeof(*n)); + struct yaz_marc_subfield *n = (struct yaz_marc_subfield *) + nmem_malloc(mt->nmem, sizeof(*n)); n->code_data = nmem_strdupn(mt->nmem, code_data, code_data_len); n->next = 0; /* mark subfield_pp to point to this one, so we append here next */ @@ -258,31 +274,23 @@ void yaz_marc_add_subfield(yaz_marc_t mt, } } -static int atoi_n_check(const char *buf, int size, int *val) +int atoi_n_check(const char *buf, int size, int *val) { - if (!isdigit(*(const unsigned char *) buf)) - return 0; + int i; + for (i = 0; i < size; i++) + if (!isdigit(i[(const unsigned char *) buf])) + return 0; *val = atoi_n(buf, size); return 1; } -/** \brief reads the MARC 24 bytes leader and checks content - \param mt handle - \param leader of the 24 byte leader - \param indicator_length indicator length - \param identifier_length identifier length - \param base_address base address - \param length_data_entry length of data entry - \param length_starting length of starting - \param length_implementation length of implementation defined data -*/ -static void yaz_marc_read_leader(yaz_marc_t mt, const char *leader_c, - int *indicator_length, - int *identifier_length, - int *base_address, - int *length_data_entry, - int *length_starting, - int *length_implementation) +void yaz_marc_set_leader(yaz_marc_t mt, const char *leader_c, + int *indicator_length, + int *identifier_length, + int *base_address, + int *length_data_entry, + int *length_starting, + int *length_implementation) { char leader[24]; @@ -384,7 +392,7 @@ static size_t cdata_one_character(yaz_marc_t mt, const char *buf) return 1; /* we don't know */ } -static void yaz_marc_reset(yaz_marc_t mt) +void yaz_marc_reset(yaz_marc_t mt) { nmem_reset(mt->nmem); mt->nodes = 0; @@ -426,6 +434,17 @@ int yaz_marc_write_check(yaz_marc_t mt, WRBUF wr) return 0; } +static size_t get_subfield_len(yaz_marc_t mt, const char *data, + int identifier_length) +{ + /* if identifier length is 2 (most MARCs) or less (probably an error), + the code is a single character .. However we've + seen multibyte codes, so see how big it really is */ + if (identifier_length > 2) + return identifier_length - 1; + else + return cdata_one_character(mt, data); +} int yaz_marc_write_line(yaz_marc_t mt, WRBUF wr) { @@ -455,13 +474,8 @@ int yaz_marc_write_line(yaz_marc_t mt, WRBUF wr) n->u.datafield.indicator); for (s = n->u.datafield.subfields; s; s = s->next) { - /* if identifier length is 2 (most MARCs), - the code is a single character .. However we've - seen multibyte codes, so see how big it really is */ - size_t using_code_len = - (identifier_length != 2) ? identifier_length - 1 - : - cdata_one_character(mt, s->code_data); + size_t using_code_len = get_subfield_len(mt, s->code_data, + identifier_length); wrbuf_puts (wr, mt->subfield_str); wrbuf_iconv_write(wr, mt->iconv_cd, s->code_data, @@ -469,8 +483,7 @@ int yaz_marc_write_line(yaz_marc_t mt, WRBUF wr) wrbuf_iconv_puts(wr, mt->iconv_cd, " "); wrbuf_iconv_puts(wr, mt->iconv_cd, s->code_data + using_code_len); - wrbuf_iconv_puts(wr, mt->iconv_cd, " "); - wr->pos--; + marc_iconv_reset(mt, wr); } wrbuf_puts (wr, mt->endline_str); break; @@ -478,23 +491,46 @@ int yaz_marc_write_line(yaz_marc_t mt, WRBUF wr) wrbuf_printf(wr, "%s", n->u.controlfield.tag); wrbuf_iconv_puts(wr, mt->iconv_cd, " "); wrbuf_iconv_puts(wr, mt->iconv_cd, n->u.controlfield.data); - wrbuf_iconv_puts(wr, mt->iconv_cd, " "); - wr->pos--; + marc_iconv_reset(mt, wr); wrbuf_puts (wr, mt->endline_str); break; case YAZ_MARC_COMMENT: wrbuf_puts(wr, "("); wrbuf_iconv_write(wr, mt->iconv_cd, n->u.comment, strlen(n->u.comment)); + marc_iconv_reset(mt, wr); wrbuf_puts(wr, ")\n"); break; case YAZ_MARC_LEADER: wrbuf_printf(wr, "%s\n", n->u.leader); } } + wrbuf_puts(wr, "\n"); + return 0; +} + +int yaz_marc_write_trailer(yaz_marc_t mt, WRBUF wr) +{ + if (mt->enable_collection == collection_second) + { + switch(mt->xml) + { + case YAZ_MARC_MARCXML: + wrbuf_printf(wr, "\n"); + break; + case YAZ_MARC_XCHANGE: + wrbuf_printf(wr, "\n"); + break; + } + } return 0; } +void yaz_marc_enable_collection(yaz_marc_t mt) +{ + mt->enable_collection = collection_first; +} + int yaz_marc_write_mode(yaz_marc_t mt, WRBUF wr) { switch(mt->xml) @@ -520,10 +556,10 @@ int yaz_marc_write_mode(yaz_marc_t mt, WRBUF wr) \param format record format (e.g. "MARC21") \param type record type (e.g. "Bibliographic") */ -static int yaz_marc_write_marcxml_ns(yaz_marc_t mt, WRBUF wr, - const char *ns, - const char *format, - const char *type) +static int yaz_marc_write_marcxml_ns1(yaz_marc_t mt, WRBUF wr, + const char *ns, + const char *format, + const char *type) { struct yaz_marc_node *n; int identifier_length; @@ -540,8 +576,18 @@ static int yaz_marc_write_marcxml_ns(yaz_marc_t mt, WRBUF wr, return -1; if (!atoi_n_check(leader+11, 1, &identifier_length)) return -1; - - wrbuf_printf(wr, "enable_collection != no_collection) + { + if (mt->enable_collection == collection_first) + wrbuf_printf(wr, "\n", ns); + mt->enable_collection = collection_second; + wrbuf_printf(wr, "\n"); for (s = n->u.datafield.subfields; s; s = s->next) { - /* if identifier length is 2 (most MARCs), - the code is a single character .. However we've - seen multibyte codes, so see how big it really is */ - size_t using_code_len = - (identifier_length != 2) ? identifier_length - 1 - : - cdata_one_character(mt, s->code_data); - + size_t using_code_len = get_subfield_len(mt, s->code_data, + identifier_length); wrbuf_iconv_puts(wr, mt->iconv_cd, " iconv_cd, s->code_data, using_code_len); @@ -587,6 +627,7 @@ static int yaz_marc_write_marcxml_ns(yaz_marc_t mt, WRBUF wr, wrbuf_iconv_write_cdata(wr, mt->iconv_cd, s->code_data + using_code_len, strlen(s->code_data + using_code_len)); + marc_iconv_reset(mt, wr); wrbuf_iconv_puts(wr, mt->iconv_cd, ""); wrbuf_puts(wr, "\n"); } @@ -597,7 +638,11 @@ static int yaz_marc_write_marcxml_ns(yaz_marc_t mt, WRBUF wr, wrbuf_iconv_write_cdata(wr, mt->iconv_cd, n->u.controlfield.tag, strlen(n->u.controlfield.tag)); wrbuf_iconv_puts(wr, mt->iconv_cd, "\">"); - wrbuf_iconv_puts(wr, mt->iconv_cd, n->u.controlfield.data); + wrbuf_iconv_write_cdata(wr, mt->iconv_cd, + n->u.controlfield.data, + strlen(n->u.controlfield.data)); + + marc_iconv_reset(mt, wr); wrbuf_iconv_puts(wr, mt->iconv_cd, ""); wrbuf_puts(wr, "\n"); break; @@ -618,8 +663,45 @@ static int yaz_marc_write_marcxml_ns(yaz_marc_t mt, WRBUF wr, return 0; } +static int yaz_marc_write_marcxml_ns(yaz_marc_t mt, WRBUF wr, + const char *ns, + const char *format, + const char *type) +{ + if (mt->write_using_libxml2) + { +#if YAZ_HAVE_XML2 + int ret; + xmlNode *root_ptr; + + ret = yaz_marc_write_xml(mt, &root_ptr, ns, format, type); + if (ret == 0) + { + xmlChar *buf_out; + xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0"); + int len_out; + + xmlDocSetRootElement(doc, root_ptr); + xmlDocDumpMemory(doc, &buf_out, &len_out); + + wrbuf_write(wr, (const char *) buf_out, len_out); + wrbuf_puts(wr, ""); + xmlFree(buf_out); + xmlFreeDoc(doc); + } + return ret; +#else + return -1; +#endif + } + else + return yaz_marc_write_marcxml_ns1(mt, wr, ns, format, type); +} + int yaz_marc_write_marcxml(yaz_marc_t mt, WRBUF wr) { + /* set leader 09 to 'a' for UNICODE */ + /* http://www.loc.gov/marc/bibliographic/ecbdldrd.html#mrcblea */ if (!mt->leader_spec) yaz_marc_modify_leader(mt, 9, "a"); return yaz_marc_write_marcxml_ns(mt, wr, "http://www.loc.gov/MARC21/slim", @@ -635,6 +717,114 @@ int yaz_marc_write_marcxchange(yaz_marc_t mt, WRBUF wr, 0, 0); } + +#if YAZ_HAVE_XML2 +int yaz_marc_write_xml(yaz_marc_t mt, xmlNode **root_ptr, + const char *ns, + const char *format, + const char *type) +{ + struct yaz_marc_node *n; + int identifier_length; + const char *leader = 0; + xmlNode *record_ptr; + xmlNsPtr ns_record; + WRBUF wr_cdata = 0; + + for (n = mt->nodes; n; n = n->next) + if (n->which == YAZ_MARC_LEADER) + { + leader = n->u.leader; + break; + } + + if (!leader) + return -1; + if (!atoi_n_check(leader+11, 1, &identifier_length)) + return -1; + + wr_cdata = wrbuf_alloc(); + + record_ptr = xmlNewNode(0, BAD_CAST "record"); + *root_ptr = record_ptr; + + ns_record = xmlNewNs(record_ptr, BAD_CAST ns, 0); + xmlSetNs(record_ptr, ns_record); + + if (format) + xmlNewProp(record_ptr, BAD_CAST "format", BAD_CAST format); + if (type) + xmlNewProp(record_ptr, BAD_CAST "type", BAD_CAST type); + for (n = mt->nodes; n; n = n->next) + { + struct yaz_marc_subfield *s; + xmlNode *ptr; + + switch(n->which) + { + case YAZ_MARC_DATAFIELD: + ptr = xmlNewChild(record_ptr, ns_record, BAD_CAST "datafield", 0); + xmlNewProp(ptr, BAD_CAST "tag", BAD_CAST n->u.datafield.tag); + if (n->u.datafield.indicator) + { + int i; + for (i = 0; n->u.datafield.indicator[i]; i++) + { + char ind_str[6]; + char ind_val[2]; + + sprintf(ind_str, "ind%d", i+1); + ind_val[0] = n->u.datafield.indicator[i]; + ind_val[1] = '\0'; + xmlNewProp(ptr, BAD_CAST ind_str, BAD_CAST ind_val); + } + } + for (s = n->u.datafield.subfields; s; s = s->next) + { + xmlNode *ptr_subfield; + size_t using_code_len = get_subfield_len(mt, s->code_data, + identifier_length); + wrbuf_rewind(wr_cdata); + wrbuf_iconv_puts(wr_cdata, mt->iconv_cd, + s->code_data + using_code_len); + marc_iconv_reset(mt, wr_cdata); + ptr_subfield = xmlNewTextChild( + ptr, ns_record, + BAD_CAST "subfield", BAD_CAST wrbuf_cstr(wr_cdata)); + + wrbuf_rewind(wr_cdata); + wrbuf_iconv_write(wr_cdata, mt->iconv_cd, + s->code_data, using_code_len); + xmlNewProp(ptr_subfield, BAD_CAST "code", + BAD_CAST wrbuf_cstr(wr_cdata)); + } + break; + case YAZ_MARC_CONTROLFIELD: + wrbuf_rewind(wr_cdata); + wrbuf_iconv_puts(wr_cdata, mt->iconv_cd, n->u.controlfield.data); + marc_iconv_reset(mt, wr_cdata); + + ptr = xmlNewTextChild(record_ptr, ns_record, + BAD_CAST "controlfield", + BAD_CAST wrbuf_cstr(wr_cdata)); + + xmlNewProp(ptr, BAD_CAST "tag", BAD_CAST n->u.controlfield.tag); + break; + case YAZ_MARC_COMMENT: + ptr = xmlNewComment(BAD_CAST n->u.comment); + xmlAddChild(record_ptr, ptr); + break; + case YAZ_MARC_LEADER: + xmlNewTextChild(record_ptr, ns_record, BAD_CAST "leader", + BAD_CAST n->u.leader); + break; + } + } + wrbuf_destroy(wr_cdata); + return 0; +} +#endif + int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wr) { struct yaz_marc_node *n; @@ -683,9 +873,11 @@ int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wr) /* write dummy IDFS + content */ wrbuf_iconv_putchar(wr_data_tmp, mt->iconv_cd, ' '); wrbuf_iconv_puts(wr_data_tmp, mt->iconv_cd, s->code_data); + marc_iconv_reset(mt, wr_data_tmp); } /* write dummy FS (makes MARC-8 to become ASCII) */ wrbuf_iconv_putchar(wr_data_tmp, mt->iconv_cd, ' '); + marc_iconv_reset(mt, wr_data_tmp); data_length += wrbuf_len(wr_data_tmp); break; case YAZ_MARC_CONTROLFIELD: @@ -694,7 +886,9 @@ int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wr) wrbuf_rewind(wr_data_tmp); wrbuf_iconv_puts(wr_data_tmp, mt->iconv_cd, n->u.controlfield.data); + marc_iconv_reset(mt, wr_data_tmp); wrbuf_iconv_putchar(wr_data_tmp, mt->iconv_cd, ' ');/* field sep */ + marc_iconv_reset(mt, wr_data_tmp); data_length += wrbuf_len(wr_data_tmp); break; case YAZ_MARC_COMMENT: @@ -728,9 +922,9 @@ int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wr) wrbuf_write(wr, wrbuf_buf(wr_head), 24); wrbuf_write(wr, wrbuf_buf(wr_dir), wrbuf_len(wr_dir)); - wrbuf_free(wr_head, 1); - wrbuf_free(wr_dir, 1); - wrbuf_free(wr_data_tmp, 1); + wrbuf_destroy(wr_head); + wrbuf_destroy(wr_dir); + wrbuf_destroy(wr_data_tmp); for (n = mt->nodes; n; n = n->next) { @@ -745,17 +939,13 @@ int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wr) { wrbuf_putc(wr, ISO2709_IDFS); wrbuf_iconv_puts(wr, mt->iconv_cd, s->code_data); - /* write dummy blank - makes MARC-8 to become ASCII */ - wrbuf_iconv_putchar(wr, mt->iconv_cd, ' '); - wr->pos--; + marc_iconv_reset(mt, wr); } wrbuf_putc(wr, ISO2709_FS); break; case YAZ_MARC_CONTROLFIELD: wrbuf_iconv_puts(wr, mt->iconv_cd, n->u.controlfield.data); - /* write dummy blank - makes MARC-8 to become ASCII */ - wrbuf_iconv_putchar(wr, mt->iconv_cd, ' '); - wr->pos--; + marc_iconv_reset(mt, wr); wrbuf_putc(wr, ISO2709_FS); break; case YAZ_MARC_COMMENT: @@ -768,393 +958,6 @@ int yaz_marc_write_iso2709(yaz_marc_t mt, WRBUF wr) return 0; } -#if YAZ_HAVE_XML2 -int yaz_marc_read_xml_subfields(yaz_marc_t mt, const xmlNode *ptr) -{ - for (; ptr; ptr = ptr->next) - { - if (ptr->type == XML_ELEMENT_NODE) - { - if (!strcmp((const char *) ptr->name, "subfield")) - { - size_t ctrl_data_len = 0; - char *ctrl_data_buf = 0; - const xmlNode *p = 0, *ptr_code = 0; - struct _xmlAttr *attr; - for (attr = ptr->properties; attr; attr = attr->next) - if (!strcmp((const char *)attr->name, "code")) - ptr_code = attr->children; - else - { - yaz_marc_cprintf( - mt, "Bad attribute '%.80s' for 'subfield'", - attr->name); - return -1; - } - if (!ptr_code) - { - yaz_marc_cprintf( - mt, "Missing attribute 'code' for 'subfield'" ); - return -1; - } - if (ptr_code->type == XML_TEXT_NODE) - { - ctrl_data_len = - strlen((const char *)ptr_code->content); - } - else - { - yaz_marc_cprintf( - mt, "Missing value for 'code' in 'subfield'" ); - return -1; - } - for (p = ptr->children; p ; p = p->next) - if (p->type == XML_TEXT_NODE) - ctrl_data_len += strlen((const char *)p->content); - ctrl_data_buf = nmem_malloc(mt->nmem, ctrl_data_len+1); - strcpy(ctrl_data_buf, (const char *)ptr_code->content); - for (p = ptr->children; p ; p = p->next) - if (p->type == XML_TEXT_NODE) - strcat(ctrl_data_buf, (const char *)p->content); - yaz_marc_add_subfield(mt, ctrl_data_buf, ctrl_data_len); - } - else - { - yaz_marc_cprintf( - mt, "Expected element 'subfield', got '%.80s'", ptr->name); - return -1; - } - } - } - return 0; -} - -static int yaz_marc_read_xml_leader(yaz_marc_t mt, const xmlNode **ptr_p) -{ - int indicator_length; - int identifier_length; - int base_address; - int length_data_entry; - int length_starting; - int length_implementation; - const char *leader = 0; - const xmlNode *ptr = *ptr_p; - - for(; ptr; ptr = ptr->next) - if (ptr->type == XML_ELEMENT_NODE) - { - if (!strcmp((const char *) ptr->name, "leader")) - { - xmlNode *p = ptr->children; - for(; p; p = p->next) - if (p->type == XML_TEXT_NODE) - leader = (const char *) p->content; - break; - } - else - { - yaz_marc_cprintf( - mt, "Expected element 'leader', got '%.80s'", ptr->name); - return -1; - } - } - if (!leader) - { - yaz_marc_cprintf(mt, "Missing element 'leader'"); - return -1; - } - if (strlen(leader) != 24) - { - yaz_marc_cprintf(mt, "Bad length %d of leader data." - " Must have length of 24 characters", strlen(leader)); - return -1; - } - yaz_marc_read_leader(mt, leader, - &indicator_length, - &identifier_length, - &base_address, - &length_data_entry, - &length_starting, - &length_implementation); - *ptr_p = ptr; - return 0; -} - -static int yaz_marc_read_xml_fields(yaz_marc_t mt, const xmlNode *ptr) -{ - for(; ptr; ptr = ptr->next) - if (ptr->type == XML_ELEMENT_NODE) - { - if (!strcmp((const char *) ptr->name, "controlfield")) - { - const xmlNode *ptr_tag = 0; - struct _xmlAttr *attr; - for (attr = ptr->properties; attr; attr = attr->next) - if (!strcmp((const char *)attr->name, "tag")) - ptr_tag = attr->children; - else - { - yaz_marc_cprintf( - mt, "Bad attribute '%.80s' for 'controlfield'", - attr->name); - return -1; - } - if (!ptr_tag) - { - yaz_marc_cprintf( - mt, "Missing attribute 'tag' for 'controlfield'" ); - return -1; - } - yaz_marc_add_controlfield_xml(mt, ptr_tag, ptr->children); - } - else if (!strcmp((const char *) ptr->name, "datafield")) - { - char indstr[11]; /* 0(unused), 1,....9, + zero term */ - const xmlNode *ptr_tag = 0; - struct _xmlAttr *attr; - int i; - for (i = 0; i<11; i++) - indstr[i] = '\0'; - for (attr = ptr->properties; attr; attr = attr->next) - if (!strcmp((const char *)attr->name, "tag")) - ptr_tag = attr->children; - else if (strlen((const char *)attr->name) == 4 && - !memcmp(attr->name, "ind", 3)) - { - int no = atoi((const char *)attr->name+3); - if (attr->children - && attr->children->type == XML_TEXT_NODE) - indstr[no] = attr->children->content[0]; - } - else - { - yaz_marc_cprintf( - mt, "Bad attribute '%.80s' for 'datafield'", - attr->name); - return -1; - } - if (!ptr_tag) - { - yaz_marc_cprintf( - mt, "Missing attribute 'tag' for 'datafield'" ); - return -1; - } - /* note that indstr[0] is unused so we use indstr[1..] */ - yaz_marc_add_datafield_xml(mt, ptr_tag, - indstr+1, strlen(indstr+1)); - - if (yaz_marc_read_xml_subfields(mt, ptr->children)) - return -1; - } - else - { - yaz_marc_cprintf(mt, - "Expected element controlfield or datafield," - " got %.80s", ptr->name); - return -1; - } - } - return 0; -} - -int yaz_marc_read_xml(yaz_marc_t mt, const void *xmlnode) -{ - const xmlNode *ptr = xmlnode; - for(; ptr; ptr = ptr->next) - if (ptr->type == XML_ELEMENT_NODE) - { - if (!strcmp((const char *) ptr->name, "record")) - break; - else - { - yaz_marc_cprintf( - mt, "Unknown element '%.80s' in MARC XML reader", - ptr->name); - return -1; - } - } - if (!ptr) - { - yaz_marc_cprintf(mt, "Missing element 'record' in MARC XML record"); - return -1; - } - /* ptr points to record node now */ - ptr = ptr->children; - if (yaz_marc_read_xml_leader(mt, &ptr)) - return -1; - return yaz_marc_read_xml_fields(mt, ptr->next); -} -#else -int yaz_marc_read_xml(yaz_marc_t mt, const void *xmlnode) -{ - return -1; -} -#endif - -int yaz_marc_read_iso2709(yaz_marc_t mt, const char *buf, int bsize) -{ - int entry_p; - int record_length; - int indicator_length; - int identifier_length; - int end_of_directory; - int base_address; - int length_data_entry; - int length_starting; - int length_implementation; - - yaz_marc_reset(mt); - - record_length = atoi_n (buf, 5); - if (record_length < 25) - { - yaz_marc_cprintf(mt, "Record length %d < 24", record_length); - return -1; - } - /* ballout if bsize is known and record_length is less than that */ - if (bsize != -1 && record_length > bsize) - { - yaz_marc_cprintf(mt, "Record appears to be larger than buffer %d < %d", - record_length, bsize); - return -1; - } - if (mt->debug) - yaz_marc_cprintf(mt, "Record length %5d", record_length); - - yaz_marc_read_leader(mt, buf, - &indicator_length, - &identifier_length, - &base_address, - &length_data_entry, - &length_starting, - &length_implementation); - - /* First pass. determine length of directory & base of data */ - for (entry_p = 24; buf[entry_p] != ISO2709_FS; ) - { - /* length of directory entry */ - int l = 3 + length_data_entry + length_starting; - if (entry_p + l >= record_length) - { - yaz_marc_cprintf(mt, "Directory offset %d: end of record." - " Missing FS char", entry_p); - return -1; - } - if (mt->debug) - { - yaz_marc_cprintf(mt, "Directory offset %d: Tag %.3s", - entry_p, buf+entry_p); - } - /* 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_marc_cprintf(mt, "Directory offset %d: Bad value for data" - " length and/or length starting", entry_p); - break; - } - entry_p += 3 + length_data_entry + length_starting; - } - end_of_directory = entry_p; - if (base_address != entry_p+1) - { - yaz_marc_cprintf(mt, "Base address not at end of directory," - " base %d, end %d", base_address, entry_p+1); - } - - /* Second pass. parse control - and datafields */ - for (entry_p = 24; entry_p != end_of_directory; ) - { - int data_length; - int data_offset; - int end_offset; - int i; - char tag[4]; - int identifier_flag = 0; - int entry_p0 = entry_p; - - memcpy (tag, buf+entry_p, 3); - entry_p += 3; - tag[3] = '\0'; - data_length = atoi_n(buf+entry_p, length_data_entry); - entry_p += length_data_entry; - data_offset = atoi_n(buf+entry_p, length_starting); - entry_p += length_starting; - i = data_offset + base_address; - end_offset = i+data_length-1; - - if (data_length <= 0 || data_offset < 0) - break; - - if (mt->debug) - { - yaz_marc_cprintf(mt, "Tag: %s. Directory offset %d: data-length %d," - " data-offset %d", - tag, entry_p0, data_length, data_offset); - } - if (end_offset >= record_length) - { - yaz_marc_cprintf(mt, "Directory offset %d: Data out of bounds %d >= %d", - entry_p0, end_offset, record_length); - break; - } - - if (memcmp (tag, "00", 2)) - identifier_flag = 1; /* if not 00X assume subfields */ - else if (indicator_length < 4 && indicator_length > 0) - { - /* Danmarc 00X have subfields */ - if (buf[i + indicator_length] == ISO2709_IDFS) - identifier_flag = 1; - else if (buf[i + indicator_length + 1] == ISO2709_IDFS) - identifier_flag = 2; - } - - if (identifier_flag) - { - /* datafield */ - i += identifier_flag-1; - yaz_marc_add_datafield(mt, tag, buf+i, indicator_length); - i += indicator_length; - - while (i < end_offset && - buf[i] != ISO2709_RS && buf[i] != ISO2709_FS) - { - int code_offset = i+1; - - i ++; - while (i < end_offset && - buf[i] != ISO2709_RS && buf[i] != ISO2709_IDFS && - buf[i] != ISO2709_FS) - i++; - yaz_marc_add_subfield(mt, buf+code_offset, i - code_offset); - } - } - else - { - /* controlfield */ - int i0 = i; - while (i < end_offset && - buf[i] != ISO2709_RS && buf[i] != ISO2709_FS) - i++; - yaz_marc_add_controlfield(mt, tag, buf+i0, i-i0); - } - if (i < end_offset) - { - yaz_marc_cprintf(mt, "Separator but not at end of field length=%d", - data_length); - } - if (buf[i] != ISO2709_RS && buf[i] != ISO2709_FS) - { - yaz_marc_cprintf(mt, "No separator at end of field length=%d", - data_length); - } - } - return record_length; -} int yaz_marc_decode_wrbuf(yaz_marc_t mt, const char *buf, int bsize, WRBUF wr) { @@ -1168,14 +971,14 @@ int yaz_marc_decode_wrbuf(yaz_marc_t mt, const char *buf, int bsize, WRBUF wr) } int yaz_marc_decode_buf (yaz_marc_t mt, const char *buf, int bsize, - char **result, int *rsize) + const char **result, size_t *rsize) { int r; wrbuf_rewind(mt->m_wr); r = yaz_marc_decode_wrbuf(mt, buf, bsize, mt->m_wr); if (result) - *result = wrbuf_buf(mt->m_wr); + *result = wrbuf_cstr(mt->m_wr); if (rsize) *rsize = wrbuf_len(mt->m_wr); return r; @@ -1198,6 +1001,11 @@ void yaz_marc_iconv(yaz_marc_t mt, yaz_iconv_t cd) mt->iconv_cd = cd; } +yaz_iconv_t yaz_marc_get_iconv(yaz_marc_t mt) +{ + return mt->iconv_cd; +} + void yaz_marc_modify_leader(yaz_marc_t mt, size_t off, const char *str) { struct yaz_marc_node *n; @@ -1211,53 +1019,6 @@ void yaz_marc_modify_leader(yaz_marc_t mt, size_t off, const char *str) } } -/* deprecated */ -int yaz_marc_decode(const char *buf, WRBUF wr, int debug, int bsize, int xml) -{ - yaz_marc_t mt = yaz_marc_create(); - int r; - - mt->debug = debug; - mt->xml = xml; - r = yaz_marc_decode_wrbuf(mt, buf, bsize, wr); - yaz_marc_destroy(mt); - return r; -} - -/* deprecated */ -int marc_display_wrbuf (const char *buf, WRBUF wr, int debug, int bsize) -{ - return yaz_marc_decode(buf, wr, debug, bsize, 0); -} - -/* deprecated */ -int marc_display_exl (const char *buf, FILE *outf, int debug, int bsize) -{ - yaz_marc_t mt = yaz_marc_create(); - int r; - - mt->debug = debug; - r = yaz_marc_decode_wrbuf (mt, buf, bsize, mt->m_wr); - if (!outf) - outf = stdout; - if (r > 0) - fwrite (wrbuf_buf(mt->m_wr), 1, wrbuf_len(mt->m_wr), outf); - yaz_marc_destroy(mt); - return r; -} - -/* deprecated */ -int marc_display_ex (const char *buf, FILE *outf, int debug) -{ - return marc_display_exl (buf, outf, debug, -1); -} - -/* deprecated */ -int marc_display (const char *buf, FILE *outf) -{ - return marc_display_ex (buf, outf, 0); -} - int yaz_marc_leader_spec(yaz_marc_t mt, const char *leader_spec) { xfree(mt->leader_spec); @@ -1284,7 +1045,7 @@ static int marc_exec_leader(const char *leader_spec, char *leader, size_t size) no = sscanf(cp, "%d=%20[^,]%n", &pos, val, &no_read); if (no < 2 || no_read < 3) return -1; - if (pos < 0 || pos >= size) + if (pos < 0 || (size_t) pos >= size) return -1; if (*val == '\'') @@ -1315,6 +1076,24 @@ static int marc_exec_leader(const char *leader_spec, char *leader, size_t size) return 0; } +int yaz_marc_decode_formatstr(const char *arg) +{ + int mode = -1; + if (!strcmp(arg, "marc")) + mode = YAZ_MARC_ISO2709; + if (!strcmp(arg, "marcxml")) + mode = YAZ_MARC_MARCXML; + if (!strcmp(arg, "marcxchange")) + mode = YAZ_MARC_XCHANGE; + if (!strcmp(arg, "line")) + mode = YAZ_MARC_LINE; + return mode; +} + +void yaz_marc_write_using_libxml2(yaz_marc_t mt, int enable) +{ + mt->write_using_libxml2 = enable; +} /* * Local variables: