X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=recctrl%2Fsgmlread.c;h=1bcce37dd3e2a64a76737a55e6c71899f0b7365f;hb=d9a9544ebf605f5141ced91c4cf2c2fc97b93539;hp=3f0566d86604a0ef24649e38263c56e632a4efcc;hpb=9b426aeb9256cef844693c13f38aba4b10f7056d;p=idzebra-moved-to-github.git

diff --git a/recctrl/sgmlread.c b/recctrl/sgmlread.c
index 3f0566d..1bcce37 100644
--- a/recctrl/sgmlread.c
+++ b/recctrl/sgmlread.c
@@ -1,23 +1,125 @@
 /*
- * Copyright (C) 1994-1996, Index Data I/S 
+ * Copyright (C) 1994-1999, Index Data
  * All rights reserved.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: sgmlread.c,v $
- * Revision 1.2  1997-04-30 08:56:08  quinn
+ * Revision 1.10  1999-11-30 13:48:04  adam
+ * Improved installation. Updated for inclusion of YAZ header files.
+ *
+ * Revision 1.9  1999/07/14 10:56:16  adam
+ * Filter handles multiple records in one file.
+ *
+ * Revision 1.8  1999/06/25 13:47:25  adam
+ * Minor change that prevents MSVC warning.
+ *
+ * Revision 1.7  1999/05/21 12:00:17  adam
+ * Better diagnostics for extraction process.
+ *
+ * Revision 1.6  1999/05/20 12:57:18  adam
+ * Implemented TCL filter. Updated recctrl system.
+ *
+ * Revision 1.5  1999/02/02 14:51:31  adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.4  1997/09/17 12:19:22  adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * 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 <stdio.h>
 #include <assert.h>
-#include <string.h>
+#include <yaz/log.h>
 
 #include "grsread.h"
 
-data1_node *grs_read_sgml (struct grs_read_info *p)
+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(void)
 {
-    return data1_read_record (p->readf, p->fh, p->mem);
+    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_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 struct recTypeGrs sgml_type = {
+    "sgml",
+    grs_init_sgml,
+    grs_destroy_sgml,
+    grs_read_sgml
+};
+
+RecTypeGrs recTypeGrs_sgml = &sgml_type;
+