-/*
- * Copyright (C) 1994-1996, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: sgmlread.c,v $
- * Revision 1.3 1997-09-04 13:54:41 adam
- * Added MARC filter - type grs.marc.<syntax> where syntax refers
- * to abstract syntax. New method tellf in retrieve/extract method.
- *
- * Revision 1.2 1997/04/30 08:56:08 quinn
- * null
- *
- * Revision 1.1 1996/10/11 10:57:32 adam
- * New module recctrl. Used to manage records (extract/retrieval).
- *
- */
-#include <log.h>
-
-#include "grsread.h"
-
-data1_node *grs_read_sgml (struct grs_read_info *p)
-{
- return data1_read_record (p->readf, p->fh, p->mem);
+/* $Id: sgmlread.c,v 1.17 2005-03-31 12:42:07 adam Exp $
+ Copyright (C) 1995-2005
+ Index Data ApS
+
+This file is part of the Zebra server.
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Zebra; see the file LICENSE.zebra. If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+*/
+
+
+#include <assert.h>
+#include <yaz/log.h>
+
+#include <idzebra/recgrs.h>
+
+struct sgml_getc_info {
+ char *buf;
+ int buf_size;
+ int size;
+ int off;
+ int moffset;
+ void *fh;
+ int (*readf)(void *, char *, size_t);
+ WRBUF wrbuf;
+};
+
+int sgml_getc (void *clientData)
+{
+ struct sgml_getc_info *p = (struct sgml_getc_info *) clientData;
+ int res;
+
+ if (p->off < p->size)
+ return p->buf[(p->off)++];
+ if (p->size < p->buf_size)
+ return 0;
+ p->moffset += p->off;
+ p->off = 0;
+ p->size = 0;
+ res = (*p->readf)(p->fh, p->buf, p->buf_size);
+ if (res > 0)
+ {
+ p->size += res;
+ return p->buf[(p->off)++];
+ }
+ return 0;
+}
+
+static data1_node *grs_read_sgml (struct grs_read_info *p)
+{
+ struct sgml_getc_info *sgi = (struct sgml_getc_info *) p->clientData;
+ data1_node *node;
+ int res;
+
+ sgi->moffset = p->offset;
+ sgi->fh = p->fh;
+ sgi->readf = p->readf;
+ sgi->off = 0;
+ sgi->size = 0;
+ res = (*sgi->readf)(sgi->fh, sgi->buf, sgi->buf_size);
+ if (res > 0)
+ sgi->size += res;
+ else
+ return 0;
+ node = data1_read_nodex (p->dh, p->mem, sgml_getc, sgi, sgi->wrbuf);
+ if (node && p->endf)
+ (*p->endf)(sgi->fh, sgi->moffset + sgi->off);
+ return node;
+}
+
+static void *grs_init_sgml(Res res, RecType recType)
+{
+ struct sgml_getc_info *p = (struct sgml_getc_info *) xmalloc (sizeof(*p));
+ p->buf_size = 512;
+ p->buf = xmalloc (p->buf_size);
+ p->wrbuf = wrbuf_alloc();
+ return p;
+}
+
+static void grs_config_sgml(void *clientData, Res res, const char *args)
+{
+
}
+
+static void grs_destroy_sgml(void *clientData)
+{
+ struct sgml_getc_info *p = (struct sgml_getc_info *) clientData;
+
+ wrbuf_free(p->wrbuf, 1);
+ xfree (p->buf);
+ xfree (p);
+}
+
+static int grs_extract_sgml(void *clientData, struct recExtractCtrl *ctrl)
+{
+ return zebra_grs_extract(clientData, ctrl, grs_read_sgml);
+}
+
+static int grs_retrieve_sgml(void *clientData, struct recRetrieveCtrl *ctrl)
+{
+ return zebra_grs_retrieve(clientData, ctrl, grs_read_sgml);
+}
+
+static struct recType grs_type_sgml =
+{
+ 0,
+ "grs.sgml",
+ grs_init_sgml,
+ grs_config_sgml,
+ grs_destroy_sgml,
+ grs_extract_sgml,
+ grs_retrieve_sgml
+};
+
+RecType
+#ifdef IDZEBRA_STATIC_GRS_SGML
+idzebra_filter_grs_sgml
+#else
+idzebra_filter
+#endif
+
+[] = {
+ &grs_type_sgml,
+ 0,
+};